A method and system for machining a reducer bracket assembly

Abstract

The present application relates to the field of reducer manufacturing, in particular to a kind of reducer support assembly processing method and system.Reducer support assembly processing method includes: step S10, based on the positioning and clamping of rear support unit of support assembly on positioning assembly is completed, positioning assembly is positioned and clamped on machine table.Step S20, cutter unit is roughly machined to the first center hole of the front support unit of support assembly.Mill, wherein the milling force direction of cutter unit to front support unit is same with the thread locking direction of front support unit and rear support unit.Step S30, cutter unit is roughly machined to the first circumferential side hole of the front support unit of support assembly.Step S40, cutter unit is respectively machined to first circumferential side hole and first center hole.Step S50, cutter unit is machined to rear support unit.In this way, the problem of reducer support assembly processing inconvenience is solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of reducer manufacturing, in particular to a machining method and system of a reducer support assembly. BACKGROUND

[0002] The reducer is an important part of the transmission system of aviation and aerospace, which can reduce the output speed, increase the torque and improve the load capacity, so as to achieve the ideal transmission effect. The support assembly of the reducer is part of the reducer, and the inside of the support assembly is a thin-walled hollow structure, which is mainly used for accommodating a plurality of gear structure parts. The support assembly includes a front support unit and a rear support unit, and the hole series on the front support unit and the rear support unit needs to be machined respectively during the machining process. The machined holes can be used to place bearings, and the gears are fixed on the bearings, thereby forming an effective torque transmission system.

[0003] The thin-walled hollow feature of the support assembly on the structure, on the one hand, brings inconvenience to the clamping of the support assembly, for example, too large clamping force can easily damage the structure of the support assembly, and too small clamping force can easily cause the support assembly to be not fully fixed during the machining process; on the other hand, it also increases the processing difficulty, for example, the support assembly is easily deformed due to too large milling force during the machining process. In the production process, a special clamping device can be used to fix the support assembly, thereby facilitating the machining of the hole series of the support assembly, improving the machining precision of the hole series, improving the meshing precision of the gears, and improving the product quality of the support assembly. SUMMARY

[0004] In order to solve the problem of inconvenient machining of the support assembly of the reducer, the present application provides a machining method and system of a support assembly of a reducer.

[0005] In a first aspect, the present application provides a machining method of a support assembly of a reducer, which comprises:

[0006] Step S10, based on the clamping and positioning of the rear support unit of the support assembly on the positioning assembly being completed, the positioning of the positioning assembly on the machine table is performed;

[0007] Step S20, based on the positioning of the positioning assembly on the machine table, the first center hole of the front support unit of the support assembly is rough-milled by a tool unit; wherein the milling force direction of the tool unit on the front support unit is the same as the thread locking direction of the front support unit and the rear support unit;

[0008] Step S30, based on the rough-milling of the first center hole being completed, the first circumferential side hole of the front support unit of the support assembly is rough-milled by the tool unit; wherein the first circumferential side hole is arranged along the circumferential side of the first center hole;

[0009] Step S40, based on the first peripheral hole milling rough machining is completed, the cutter unit is respectively to the first peripheral hole, the first center hole milling finishing;

[0010] Step S50, based on the first peripheral hole, the first center hole milling finishing is completed, the cutter unit is to the rear support unit milling processing.

[0011] In some embodiments, the step S40 comprises:

[0012] Step S41, based on the first peripheral hole milling rough machining is completed, the cutter unit is to the first peripheral hole milling finishing;

[0013] Step S42, based on the first peripheral hole milling finishing is completed, the cutter unit is to the first center hole milling finishing.

[0014] In some embodiments, the step S10 comprises:

[0015] Step S11, based on the positioning requirement of the support assembly, the first positioning unit of the positioning assembly is positioned and fixed in the first state to the gear ring unit of the support assembly; Wherein, the support assembly comprises a front support unit, a rear support unit, and the gear ring unit; One end of the front support unit is threadedly connected with one end of the rear support unit; The inner peripheral wall of the gear ring unit is spaced apart from the outer peripheral wall of the front support unit; One end of the gear ring unit abuts against one end of the rear support unit close to the front support unit; The first positioning unit comprises a positioning disc and a positioning rod; The positioning disc comprises a disc body and a first positioning hole; The first positioning hole penetrates the disc body; The first positioning hole is spaced apart on the disc body along the circumferential direction of the disc body; The positioning rod comprises a rod body and a first positioning column; One end of the first positioning column is detachably connected with the rod body, and the other end extends away from the rod body; The first positioning column is spaced apart on the rod body along the length direction of the rod body; The first state comprises that the outer peripheral wall of the disc body abuts against the inner peripheral wall of the gear ring unit, and one end of the first positioning column sequentially passes through the first peripheral hole of the front support unit and the first center hole; The gear ring unit is detachably connected with the rear support unit of the support assembly;

[0016] Step S12, based on the first positioning unit positioning and fixing the gear ring unit in the first state is completed, the second positioning unit of the positioning assembly is positioned and fixed to the support assembly.

[0017] In some embodiments, the step S12 comprises:

[0018] Step S121, based on the first positioning unit in the first state to the gear ring unit positioning fixed complete, the bracket assembly is placed in the second positioning unit of the positioning assembly;

[0019] Step S122, based on the bracket assembly placed in the second positioning unit, the inner wall of the tightening ring of the second positioning unit and the outer wall of the circumferential side tooth of the rear bracket unit abut;

[0020] Step S123, based on the inner wall of the tightening ring and the outer wall of the circumferential side tooth abut, one end of the compression ring of the second positioning unit abuts one side of the second rear bracket disc of the rear bracket unit;

[0021] Step S124, based on one end of the compression ring and one side of the rear bracket disc abut, the compression groove of the compression ring is aligned with the limiting groove of the positioning seat of the second positioning unit and put into the compression block; wherein one end of the compression block of the second positioning unit abuts the compression groove, and the other end is detachably connected with the limiting groove;

[0022] Step S125, based on the compression groove and the limiting groove are aligned and put into the compression block, the first positioning unit is separated from the bracket assembly and the second positioning unit completes the positioning and fixation of the bracket assembly.

[0023] In some embodiments, the step S121 comprises:

[0024] Step S1211, based on the first positioning unit in the first state to the gear ring unit positioning fixed complete, the disc body is taken out and one end of the first positioning column is inserted into the first circumferential side hole;

[0025] Step S1212, based on the disc body is taken out and one end of the first positioning column is inserted into the first circumferential side hole, the bracket assembly is placed in the second positioning unit of the positioning assembly and the second positioning column of the positioning rod is inserted into the third positioning hole of the positioning seat of the second positioning unit.

[0026] In some embodiments, the step S20 comprises:

[0027] Step S21, based on the cutter unit rough machining the first center hole, the cutter unit moves to a set position in the direction close to the rear bracket unit;

[0028] Step S22, based on the cutter unit moving to a set position, control the cutter unit to stop feeding milling;

[0029] Step S23, based on the tool unit stopping the feed milling, the tool unit keeps rotating and rotates along the circumference of the first central hole to a set time.

[0030] In some embodiments, the milling finishing allowance of the first circumferential hole in step S41 is greater than a first set value; and the milling finishing allowance of the first central hole in step S42 is greater than a second set value.

[0031] In some embodiments, the step S50 comprises:

[0032] Step S51, based on the tool unit milling the rear support unit, the positioning assembly and the support assembly are flipped and clamped on the machine table;

[0033] Step S52, based on the positioning assembly and the support assembly being flipped and clamped on the machine table, the tool unit sequentially performs rough milling and finishing milling on the second circumferential hole of the rear support unit;

[0034] Step S53, based on the second circumferential hole completing rough milling and finishing milling, the tool unit sequentially performs rough milling and finishing milling on the second central hole of the rear support unit.

[0035] In a second aspect, the present application provides a reducer support assembly processing system, which is applied to any one of the reducer support assembly processing methods in the first aspect, and the reducer support assembly processing system comprises:

[0036] The support assembly comprises a front support unit, a rear support unit, and a gear ring unit; the front support unit comprises a front support disc, a first central hole, a first circumferential hole, and a front support cylinder; one side of the front support disc is fixedly connected to one end of the front support cylinder; the first central hole penetrates the central position of the front support disc; the first circumferential hole penetrates the front support disc; the first circumferential hole is arranged at intervals along the circumference of the first central hole; the hollow cavity of the front support cylinder is in communication with the first central hole; the rear support unit comprises a first rear support disc, a second central hole, a second circumferential hole, a second rear support disc, a circumferential tooth, and a rear support column; the second central hole penetrates the central position of the first rear support disc; the second circumferential hole penetrates the first rear support disc; the second circumferential hole is arranged at intervals along the circumference of the second central hole; one end of the circumferential tooth is fixedly connected to one side of the first rear support disc, and the other end is fixedly connected to one side of the second rear support disc; the circumferential tooth is arranged at intervals along the circumference of the first rear support disc; the central position of the side of the second rear support disc away from the circumferential tooth is fixedly connected to one end of the rear support column; the front support cylinder is threadedly connected to the rear support column.

[0037] a positioning assembly for positioning and fixing the support assembly;

[0038] a processing assembly, the processing assembly comprising a machine table, a cutter unit; the machine table comprising a frame, a processing table, a limiting block; one end of the frame is fixedly connected with one side of the processing table, and the other end extends away from the processing table; the limiting block is detachably connected with the side of the processing table close to the frame; the limiting blocks are spaced apart on the processing table; the axis of one of the limiting blocks in the length direction is perpendicular to the axis of the other limiting block in the length direction; the limiting block abuts against the outer peripheral wall of the positioning assembly; one end of the positioning assembly is detachably connected with the processing table; one end of the cutter unit is detachably connected with the end of the frame away from the processing table, and the other end extends towards the processing table; the cutter unit is used for rough milling and fine milling of the support assembly.

[0039] In some embodiments, the positioning assembly comprises a first positioning unit and a second positioning unit; the first positioning unit comprises a positioning disc and a positioning rod; the positioning disc comprises a disc body and a first positioning hole; the first positioning hole penetrates the disc body; the first positioning holes are spaced apart on the disc body along the circumference of the disc body; the positioning rod comprises a rod body, a first positioning column and a second positioning column; one end of the first positioning column is detachably connected with the rod body, and the other end extends away from the rod body; the first positioning columns are spaced apart on the rod body along the length direction of the rod body; one end of the second positioning column is detachably connected with the rod body, and the other end extends away from the rod body; two second positioning columns are respectively arranged at the two ends of the rod body;

[0040] The first positioning unit further comprises a first state; in the first state, the outer peripheral wall of the disc body abuts against the inner peripheral wall of the gear ring unit, one end of the first positioning column sequentially penetrates the first positioning hole and the first side hole of the front support unit, and the gear ring unit is detachably connected with the rear support unit of the support assembly;

[0041] The second positioning unit comprises a positioning seat, a tightening ring, a compression ring and a compression block; the positioning seat comprises a seat body, a second positioning hole, an avoiding hole, a tightening screw hole, a limiting slot and a third positioning hole; one end of the second positioning hole is communicated with one end of the avoiding hole; the second positioning hole and the avoiding hole penetrate the seat body in sequence; the outer peripheral wall of the tightening ring is abutted with the inner peripheral wall of the second positioning hole close to the avoiding hole; the tightening screw hole penetrates the seat body from the outer peripheral side of the seat body along the radial direction of the seat body and is communicated with the second positioning hole; the opening of the end of the tightening screw hole close to the second positioning hole is located in the outer peripheral wall area of the tightening ring; the limiting slot is arranged at the end of the seat body away from the avoiding hole along the lateral side of the second positioning hole; the limiting slot is recessed from one end of the seat body towards the other end of the seat body; the limiting slot is communicated with the second positioning hole; the third positioning hole is symmetrically arranged on the end face of the seat body away from the avoiding hole; the third positioning hole is located in the area between two adjacent limiting slots; the compression ring comprises a ring body and a compression slot; the compression slot is arranged on one side of the ring body; the compression slot is recessed from one side of the ring body towards the other side of the ring body; the outer peripheral wall of the ring body is abutted with the inner peripheral wall of the second positioning hole close to the limiting slot; the side of the ring body away from the compression slot is abutted with the side of the second rear support disc away from the lateral side teeth; one end of the compression block is abutted with the compression slot, and the other end is detachably connected with the limiting slot; the first state further comprises that the second positioning column is inserted into the third positioning hole at the end away from the rod body.

[0042] To solve the problem of inconvenient machining of the reducer support assembly, the present application has the following advantages:

[0043] The front support unit comprises a first central hole and a first lateral hole, and the positions where the front support unit and the rear support unit are threadedly connected are located on the central axis in the vertical direction of the support assembly; the support assembly is positioned and fixed by the positioning assembly, which facilitates the machining of the support assembly and ensures the machining accuracy of the first central hole and the first lateral hole. When the tool unit machines the front support unit, the first central hole is preferentially rough machined, and the direction of the milling force is controlled to be the same as the locking direction of the threads of the front support unit and the rear support unit, which can further tighten the thread connection and avoid loosening of the thread connection, thereby preventing the front support unit from shaking during machining, affecting the machining accuracy of the first central hole and the first lateral hole, or even damaging the support assembly and the milling tool. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 A schematic diagram of a machining method of a reducer support assembly of an embodiment is shown;

[0045] Figure 2 A schematic diagram of a support assembly of an embodiment is shown.

[0046] Figure 3 A schematic view of a bracket assembly of another embodiment is shown;

[0047] Figure 4 A schematic view of a bracket assembly of another embodiment is shown;

[0048] Figure 5 A schematic view of a bracket assembly and a positioning assembly of an embodiment is shown;

[0049] Figure 6 A schematic view of a bracket assembly and a positioning assembly of another embodiment is shown;

[0050] Figure 7 A schematic view of a bracket assembly and a positioning assembly of another embodiment is shown;

[0051] Figure 8 A schematic view of a positioning disc of an embodiment is shown;

[0052] Figure 9 A schematic view of a positioning rod of an embodiment is shown;

[0053] Figure 10 A schematic view of a compression ring of an embodiment is shown;

[0054] Figure 11 A schematic view of a machining system of a reducer bracket assembly of an embodiment is shown.

[0055] Reference signs: 01 positioning assembly; 11 first positioning unit; 111 positioning disc; 1111 disc body; 1112 first positioning hole; 112 positioning rod; 1121 rod body; 1122 first positioning column; 1123 second positioning column; 12 second positioning unit; 121 positioning seat; 1211 seat body; 1212 second positioning hole; 1213 avoiding hole; 1214 tightening screw hole; 1215 limiting groove; 1216 third positioning hole; 122 tightening ring; 123 compression ring; 1231 ring body; 1232 compression groove; 124 compression block; 02 bracket assembly; 21 front bracket unit; 211 front bracket disc; 212 first center hole; 213 first circumferential hole; 214 front bracket cylinder; 22 rear bracket unit; 221 first rear bracket disc; 222 second center hole; 223 second circumferential hole; 224 second rear bracket disc; 225 circumferential tooth; 226 rear bracket column; 23 gear ring unit; 231 first gear ring; 232 second gear ring; 03 machining assembly; 31 machine table; 311 frame body; 312 machining table; 313 limiting block; 32 cutter unit; 321 driving part; 322 milling cutter. DETAILED DESCRIPTION

[0056] The present disclosure will now be discussed with reference to a number of exemplary embodiments. It is to be appreciated that these embodiments are discussed solely for the purpose of enabling those with ordinary skill in the art to better understand and therefore implement the present disclosure, and are not intended to limit the scope of the present disclosure in any way.

[0057] As used herein, the terms "comprises," "comprising," "includes," "including," "has," "having," "contains," "containing," or any other variation thereof, are to be construed as "including but not limited to" the recited term. The terms "based on" and "based upon" are to be construed as "based at least in part on." The terms "one embodiment" and "an embodiment" are to be construed as "at least one embodiment." The term "another embodiment" is to be construed as "at least one other embodiment." The terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," "longitudinal," and similar terms are used for description only and not intended to convey any constraint on the apparatus, element, or component being described. Also, the terms "about" and "substantially" are used to indicate approximations to more precise measurements in order to provide reasonable description of something which is expected to vary somewhat from the nominal indicated value due to inevitable manufacturing tolerances and variations. The above terms are used primarily just to better describe certain embodiments of the present application and are not intended to limit the scope of the indicated apparatus, element, or component to a particular position or configuration. Also, some of the terms are used in their broadest generic sense and are not intended to be limited in their usage to only the specific type of structure, component, or element they are used with. Also, the terms "mount," "disposed," "provided with," "connected," and "linked" are to be construed broadly in accordance with the principles of the present application. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium; or it can be internal connection between two apparatuses, elements, or components. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Also, the terms "first," "second," and the like are primarily used to distinguish different apparatuses, elements, or components (the specific type and structure of which can be the same or different), and are not intended to indicate or imply relative importance or quantity of the indicated apparatus, element, or component. Unless otherwise stated, the meaning of "a plurality" is two or more.

[0058] In the present embodiment, the bracket assembly 02 has the characteristics of thin-walled hollow structure. In the process of machining the bracket assembly 02, excessive clamping force can easily cause the bracket assembly 02 to deform, and insufficient clamping force cannot meet the machining requirements, so a specific positioning assembly 01 is needed for clamping. As shown in Figure 2 The bracket assembly 02 can include a front bracket unit 21, a rear bracket unit 22, and a gear ring unit 23. Figure 2 , Figure 4As shown, the front support unit 21 can include a front support disc 211, a first central hole 212, a first circumferential hole 213, a front support cylinder 214, the first central hole 212 and the first circumferential hole 213 penetrating the front support disc 211, the first central hole 212 being located at the center of the front support disc 211, and the first circumferential hole 213 being arranged along the circumference of the first central hole 212. As shown, Figure 3 , Figure 4 As shown, the rear support unit 22 can include a first rear support disc 221, a second central hole 222, a second circumferential hole 223, a second rear support disc 224, a circumferential tooth 225, and a rear support column 226. The second central hole 222 can penetrate the center of the first rear support disc 221. The second circumferential hole 223 can penetrate the first rear support disc 221. The second circumferential hole 223 can be arranged along the circumference of the second central hole 222. One end of the circumferential tooth 225 can be fixedly connected to one side of the first rear support disc 221, and the other end can be fixedly connected to one side of the second rear support disc 224. The circumferential tooth 225 can be arranged along the circumference of the first rear support disc 221. The center of the side of the second rear support disc 224 away from the circumferential tooth 225 can be fixedly connected to one end of the rear support column 226. The front support cylinder 214 of the front support unit 21 and the rear support column 226 of the rear support unit 22 can be connected by threads. Since the front support unit 21 and the rear support unit 22 of the support assembly 02 are connected by threads, if the direction of the milling force is opposite to the direction of the thread locking during processing, the threads are likely to loosen, causing the front support to shake during processing, affecting the processing precision, and even damaging the workpiece and the tool. Therefore, a reducer support assembly 02 processing method is proposed, as shown Figure 1 The reducer support assembly 02 processing method can include:

[0059] Step S10, after the rear support unit 22 of the support assembly 02 is positioned and clamped on the positioning assembly 01, the positioning assembly 01 can be positioned and clamped on the machine table 31. Since the front support cylinder 214 of the front support unit 21 and the rear support column 226 of the rear support unit 22 can be connected by threads, when the rear support unit 22 is positioned, the displacement of the front support unit 21 of the support assembly 02 can be limited to a certain extent.

[0060] Step S20, based on the positioning of the positioning assembly 01 on the machine table 31 is completed, the tool unit 32 can be milled rough machining of the first center hole 212 of the front support unit 21 of the support assembly 02. For example, a bottom four-flute milling cutter with a diameter less than one-half of the first center hole 212 can be selected to rough mill the first center hole 212, and a spiral milling method is used to complete the downcut, leaving a 0.02mm finishing allowance in the diameter direction. Among them, the machine table 31 and the tool unit 32 can constitute a machining assembly 03, the machine table 31 can be used for positioning and fixing the positioning assembly 01, and the tool unit 32 can be used for machining the support assembly 02. The milling force direction of the tool unit 32 on the front support unit 21 can be the same as the thread locking direction between the front support cylinder 214 of the front support unit 21 and the rear support column 226 of the rear support unit 22, so that the tool unit 32 can avoid loosening the thread connection when machining the first center hole 212, thereby causing the front support unit 21 to shake during machining, affecting the machining precision of the first center hole 212 and the first side hole 213, and even damaging the support assembly 02 and the tool unit 32.

[0061] Step S30, based on the completion of the first center hole 212 rough milling, the tool unit 32 can be milled rough machining of the first side hole 213 of the front support unit 21 of the support assembly 02; For example, a bottom four-flute milling cutter with a diameter less than one-half of the first side hole 213 can be selected to rough mill the first side hole 213, and a spiral milling method is used to complete the downcut, leaving a 0.03mm finishing allowance in the diameter direction. Because the internal support structure of the first center hole 212 is more stable, the milling stability of the first center hole 212 is better than that of the first side hole 213, so under similar milling parameters, the first side hole 213 can reserve more finishing allowance to eliminate the vibration marks generated during milling. Among them, the first side hole 213 can be arranged along the periphery of the first center hole 212. The first center hole 212, the front support cylinder 214 and the rear support column 226 can all be located on the central axis in the vertical direction of the support assembly 02, so that the first center hole 212 of the front support unit 21 is machined first, which is beneficial to further locking the thread between the front support unit 21 and the rear support unit 22 through the milling force, and then machining the first side hole 213 of the front support unit 21, which can reduce the possibility of relative movement between the front support unit 21 and the rear support unit 22 during machining the first side hole 213, and is beneficial to improve the machining precision.

[0062] At step S40, based on the completion of the rough milling of the first peripheral hole 213, the tool unit 32 can mill the first peripheral hole 213 and the first central hole 212 respectively. For example, a bottom six-blade milling cutter with a hole diameter of one-half to two-thirds of the first peripheral hole 213 and the first central hole 212 can be selected for finishing, and an interpolation arc milling method can be used instead of a spiral milling down method. The use of a six-blade milling cutter has a shallower spiral groove structure and better tool rigidity than a four-blade milling cutter, and the milling is more stable, which can effectively avoid the generation of vibration marks; and the change of the finishing down method can make the milling surface smoother and more continuous, can reduce the vibration of the tool unit 32, and improve the processing stability.

[0063] At step S50, based on the completion of the finishing milling of the first peripheral hole 213 and the first central hole 212, the tool unit 32 can mill the rear support unit 22.

[0064] In other embodiments, the gear ring unit 23 can include a first gear ring 231 and a second gear ring 232. The first gear ring 231 can be annular, and the inner wall of the first gear ring 231 can be distributed with teeth; the second gear ring 232 can be a tapered annular, and the inner wall of the second gear ring 232 can be distributed with teeth, and one end of the second gear ring 232 with a larger diameter can be fixedly connected with the first gear ring 231, and the other end can be in abutment with the second rear support disc 224 of the rear support unit 22. The gear ring unit 23 can be sleeved on the outer peripheral side of the front support unit 21.

[0065] In this embodiment, step S40 can include:

[0066] At step S41, based on the completion of the rough milling of the first peripheral hole 213, the tool unit 32 can finish milling the first peripheral hole 213.

[0067] At step S42, based on the completion of the finishing milling of the first peripheral hole 213, the tool unit 32 can finish milling the first central hole 212. During the finishing milling of the first central hole 212 and the first peripheral hole 213 of the front support unit 21, since the support assembly 02 is a thin-walled structure, the support stability of the first central hole 212 relative to the first peripheral hole 213 is better, and the order of processing the first peripheral hole 213 first and then processing the first central hole 212 can reduce the risk of hole wall fracture of the first central hole 212, while ensuring the correction accuracy of the first central hole 212 as the center origin of all processing hole systems.

[0068] In this embodiment, step S10 can include:

[0069] At step S11, based on the positioning requirements of the support assembly 02, the first positioning unit 11 of the positioning assembly 01 can position and fix the gear ring unit 23 of the support assembly 02 in a first state. For example, the first positioning unit 11 can be a first positioning assembly 011, and the first positioning assembly 011 can include a first positioning base 0111 and a first positioning mechanism 0112.Figure 4 As shown, the support assembly 02 can include a front support unit 21, a rear support unit 22, and a gear ring unit 23. The front support unit 21 can include a front support cylinder 214, and the rear support unit 22 can include a rear support column 226. The front support cylinder 214 and the rear support column 226 can be connected by threads, so that one end of the front support unit 21 is threadedly connected to one end of the rear support unit 22. The inner circumferential wall of the gear ring unit 23 can be spaced apart from the outer circumferential wall of the front support unit 21. One end of the gear ring unit 23 can abut against one end of the rear support unit 22 close to the front support unit 21, so that the rear support unit 22 can limit the downward displacement of the gear ring unit 23 in the vertical direction. The gear ring unit 23 can be movable relative to the front support unit 21, so it is necessary to position and fix the gear ring unit 23 to avoid affecting the machining precision when the support assembly 02 is machined. As shown, Figure 6 As shown, the first positioning unit 11 can include a positioning disc 111 and a positioning rod 112. The positioning disc 111 can be used to assist in positioning the gear ring unit 23 of the support assembly 02. As shown, Figure 8 As shown, the positioning disc 111 can include a disc body 1111 and a first positioning hole 1112. The first positioning hole 1112 can penetrate the disc body 1111. The first positioning hole 1112 can be spaced apart along the circumference of the center of the disc body 1111 and arranged on the disc body 1111. As shown, Figure 9As shown, the positioning rod 112 can include a rod body 1121 and a first positioning column 1122. One end of the first positioning column 1122 can be detachably connected with the rod body 1121, and the other end can extend away from the rod body 1121. The number of the first positioning column 1122 can be two, and the first positioning column 1122 can be arranged on the rod body 1121 along the length direction of the rod body 1121. The diameters of the first positioning column 1122, the first positioning hole 1112, and the first circumferential hole 213 are matched, and the first positioning column 1122 can pass through the first positioning hole 1112 and the first circumferential hole 213 in sequence, so that the state of the first positioning hole 1112 and the first circumferential hole 213 can be limited by the two first positioning columns 1122 on the positioning rod 112, and the movement or rotation of the front support unit 21 and the positioning disc 111 in the horizontal direction can be limited. The first state can include that the outer circumferential wall of the disc body 1111 abuts against the inner circumferential wall of the gear ring unit 23, one end of the first positioning column 1122 can pass through the first positioning hole 1112 and the first circumferential hole 213 of the front support unit 21 in sequence, and the center axis of the positioning disc 111 and the first positioning unit 11 and the front support unit 21 in the vertical direction can be limited by the cooperation of the two first positioning columns 1122 of the positioning rod 112, and then the center axis of the gear ring unit 23 and the first positioning unit 11 and the front support unit 21 in the vertical direction can be limited, so that the positioning of the gear ring unit 23 before fixing can be realized, and then the gear ring unit 23 and the rear support unit 22 of the support assembly 02 can be fixed by detachable connection, so that relative movement between the gear ring unit 23 and the front support unit 21 and the rear support unit 22 during machining is avoided, and the smooth progress of the machining process is facilitated.

[0070] In step S12, based on the first positioning unit 11 positioning and fixing the gear ring unit 23 in the first state, the second positioning unit 12 of the positioning assembly 01 positions and fixes the support assembly 02.

[0071] In other embodiments, the outer circumferential wall of the disc body 1111 abuts against the inner circumferential wall of the gear ring unit 23, and after the positioning of the gear ring unit 23 before fixing is realized by the disc body 1111, the gear ring unit 23 and the rear support unit 22 are fixed by detachable connection. When detachable connection is avoided, the milling machining position of the support assembly 02 is avoided, that is, the front support unit 21 and the first rear support disc 221 are avoided. The detachable connection mode is not limited, and can be selected according to actual needs, for example, the gear ring unit 23 can be positioned and fixed by a cable tie, a pressing device, etc. Figure 2 、 Figure 3As shown, the outer peripheral wall of the gear ring unit 23 is provided with first holes arranged uniformly along the circumferential direction, and at least two of the first holes are symmetrically arranged. When the gear ring unit 23 is fixed to the rear support unit 22, one end of the cable tie is sequentially threaded through the gear ring unit 23, the second rear support disc 224 of the rear support unit 22, and the puller of the cable tie is fixed to the side of the second rear support disc 224 away from the gear ring unit 23, thereby completing the preliminary binding. Subsequently, the positioning disc 111 and the positioning rod 112 are removed, and a plurality of cable ties are bound at intervals along the circumferential direction of the gear ring unit 23. At this time, one end of the cable tie is sequentially threaded through the interval between the gear ring unit 23 and the front support unit 21 and the hole in the second rear support disc 224 to complete the binding and fixation, so that the gear ring unit 23 and the front support unit 21 maintain a relative fixed positional relationship. After the binding and fixation of the cable tie are completed, the excess part can be cut to avoid affecting the milling of the support assembly 02. The projection of the pressing device does not coincide with the projection of the front support unit 21.

[0072] In the present embodiment, step S12 can include:

[0073] After the positioning and fixation of the gear ring unit 23 in the first state based on the first positioning unit 11 are completed, the support assembly 02 can be placed in the second positioning unit 12 of the positioning assembly 01, as shown in Figure 11 The machining assembly 03 can include a machine table 31 and a tool unit 32, and the second positioning unit 12 is more easily positioned and fixed on the machine table 31. The support assembly 02 is fixed on the second positioning unit 12, which facilitates the machining of the support assembly 02 by the tool unit 32. As shown in Figure 5 Figure 7 ​As shown, the second positioning unit 12 can include a positioning seat 121, a tightening ring 122, a compression ring 123, and a compression block 124. The positioning seat 121 is the main body part of the second positioning unit 12, the tightening ring 122 can be used to limit the displacement of the support assembly 02 in the horizontal direction, and the compression ring 123 and the compression block 124 cooperate and can be used to limit the displacement of the support assembly 02 in the vertical direction. The positioning seat 121 can include a seat body 1211, a second positioning hole 1212, an avoiding hole 1213, a tightening screw hole 1214, a limiting groove 1215, and a third positioning hole 1216. The seat body 1211 is the main body part of the positioning seat 121, the second positioning hole 1212 can be used to place the support assembly 02, and after the support assembly 02 is placed in the second positioning hole 1212, part of the support assembly 02 can be located in the avoiding hole 1213; a bolt of appropriate size can be pressed against the compression ring 123 through the tightening screw hole 1214, thereby limiting the displacement of the support assembly 02 in the horizontal direction; the limiting groove 1215 can be used for the fixation of the compression block 124; and the third positioning hole 1216 can cooperate with the second positioning column 1123 on the positioning rod 112 to achieve the fixation of the positioning rod 112. One end of the second positioning hole 1212 is in communication with one end of the avoiding hole 1213. The second positioning hole 1212 and the avoiding hole 1213 penetrate the seat body 1211 in sequence. The diameter of the avoiding hole 1213 is slightly smaller than that of the second positioning hole 1212, so that a stepped step can be formed at the junction of the second positioning hole 1212 and the avoiding hole 1213, and the plane where the upper surface of the stepped step is located can serve as a standard reference surface of the support assembly 02, thereby facilitating the provision of a horizontal positioning reference for the machining of the support assembly 02. The outer peripheral wall of the tightening ring 122 abuts against the inner peripheral wall of the second positioning hole 1212 close to the avoiding hole 1213. The tightening screw hole 1214 penetrates the seat body 1211 in the radial direction of the seat body 1211 from the outer peripheral side of the seat body 1211 to communicate with the second positioning hole 1212. The opening of one end of the tightening screw hole 1214 close to the second positioning hole 1212 is located in the outer peripheral wall area of the tightening ring 122. The tightening ring 122 is an open ring with a certain width, and during positioning, the tightening ring 122 and the support assembly 02 can be placed in the second positioning hole 1212 of the positioning seat 121 at the same time on the stepped step formed at the junction of the second positioning hole 1212 and the avoiding hole 1213, and the tightening ring 122 and the peripheral side teeth 225 of the support assembly 02 are spaced apart or partially abut against each other. A bolt can abut against the tightening ring 122 through the tightening screw hole 1214, and by adjusting the bolt, the tightening ring 122 can be pressed against the peripheral side teeth 225 of the support assembly 02 to closely abut against the peripheral side teeth 225, so as to limit the displacement of the peripheral side teeth 225 in the horizontal direction; at the same time, the inner wall of the tightening ring 122 abuts against the peripheral side teeth 225, and the contact area is larger, which can reduce the pressure received by the peripheral side teeth 225 and protect the peripheral side teeth 225 from being damaged. The limiting grooves 1215 can be spaced apart along the peripheral side of the second positioning hole 1212 and located at one end of the seat body 1211 away from the avoiding hole 1213.The limiting groove 1215 can be recessed from one end of the seat body 1211 towards the other end of the seat body 1211. The limiting groove 1215 is in communication with the second positioning hole 1212. The third positioning hole 1216 can be symmetrically arranged on the end face of the seat body 1211 away from the avoiding hole 1213. The third positioning hole 1216 can be located in the region between the adjacent two limiting grooves 1215. The third positioning hole 1216 can cooperate with the second positioning column 1123 on the positioning rod 112 to realize the fixation of the positioning rod 112 on the positioning seat 121, so that the positions of the center axes of the first positioning unit 11 and the second positioning unit 12 in the vertical direction coincide, so that the first positioning unit 11 and the second positioning unit 12 have the same positioning reference, facilitating the positioning of the support assembly 02. As shown in the figure. Figure 10 As shown in the figure, the compression ring 123 can include a ring body 1231 and a compression groove 1232. The compression groove 1232 can be arranged at one side of the ring body 1231. The compression groove 1232 can be recessed from one side of the ring body 1231 towards the other side of the ring body 1231. The outer peripheral wall of the ring body 1231 can abut against the inner peripheral wall of the second positioning hole 1212 close to the limiting groove 1215. The side of the ring body 1231 away from the compression groove 1232 can abut against the side of the second rear support disc 224 away from the peripheral teeth 225. One end of the compression block 124 abuts against the compression groove 1232, and the other end is detachably connected with the limiting groove 1215. The width of the compression block 124 is adapted to the width of the limiting groove 1215 and the compression groove 1232, and the displacement of the compression groove 1232 in the vertical direction can be limited by the compression block 124 cooperating with the positioning seat 121, thereby limiting the displacement of the support assembly 02 in the vertical direction. The first state further includes that the end of the second positioning column 1123 away from the rod body 1121 extends into the third positioning hole 1216, so that the center axis of the support assembly 02 coincides with the center axes of the first positioning unit 11 and the second positioning unit 12 in the vertical direction, realizing the positioning of the support assembly 02 by the first positioning unit 11 and the second positioning unit 12, and ensuring the machining precision. When the support assembly 02 is placed in the second positioning unit 12 of the positioning assembly 01, the support assembly 02 is located in the space formed by the second positioning hole 1212 and the avoiding hole 1213, and the side of the fixed connection between the peripheral teeth 225 and the first rear support disc 221 away from the front support unit 21 abuts against the stepped step formed by the junction of the second positioning hole 1212 and the avoiding hole 1213. Thus, the downward displacement of the support assembly 02 in the vertical direction can be limited.

[0074] In step S122, based on the support assembly 02 being placed in the second positioning unit 12, the inner peripheral wall of the compression ring 122 of the second positioning unit 12 can abut against the outer peripheral wall of the peripheral teeth 225 of the rear support unit 22, thereby limiting the displacement of the rear support unit 22 in the horizontal direction. As shown in the figure, Figure 3 Figure 4 ​As shown, the rear support unit 22 can include a first rear support disc 221, a second central hole 222, a second circumferential hole 223, a second rear support disc 224, circumferential teeth 225, and a rear support column 226. The second central hole 222 can penetrate the center of the first rear support disc 221. The second circumferential hole 223 can penetrate the first rear support disc 221. The second circumferential hole 223 can be arranged at intervals along the circumference of the second central hole 222. One end of the circumferential teeth 225 can be fixedly connected to one side of the first rear support disc 221, and the other end can be fixedly connected to one side of the second rear support disc 224. The circumferential teeth 225 can be arranged at intervals along the circumference of the first rear support disc 221. The center of the side of the second rear support disc 224 away from the circumferential teeth 225 can be fixedly connected to one end of the rear support column 226.

[0075] In step S123, based on the inner circumferential wall of the tightening ring 122 abutting the outer circumferential wall of the circumferential teeth 225, one end of the compression ring 123 of the second positioning unit 12 abuts one side of the second rear support disc 224 of the rear support unit 22. This facilitates limiting the upward movement of the rear support unit 22 in the vertical direction by the compression ring 123.

[0076] In step S124, based on one end of the compression ring 123 abutting one side of the rear support disc, the compression groove 1232 of the compression ring 123 is aligned with the limiting groove 1215 of the positioning seat 121 of the second positioning unit 12 and placed into the compression block 124. As shown, Figure 5 One end of the compression block 124 of the second positioning unit 12 abuts the compression groove 1232, and the other end is detachably connected to the limiting groove 1215. By the compression block 124 cooperating with the positioning seat 121, the upward movement of the compression ring 123 in the vertical direction is limited, and the upward movement of the rear support unit 22 in the vertical direction is further limited.

[0077] In step S125, based on the compression groove 1232 being aligned with the limiting groove 1215 and being placed into the compression block 124, the first positioning unit 11 is separated from the support assembly 02, and the second positioning unit 12 completes the positioning and fixing of the support assembly 02. As shown, Figure 5As shown, the positioning disc 111 and the positioning rod 112 of the first positioning unit 11 can be removed from the second positioning unit 12 and the support assembly 02 after completing the auxiliary positioning, so as to avoid blocking the milling cutter 322 and affecting the overturning and clamping of the second positioning unit 12 during subsequent milling processing of the support assembly 02. Through the above steps, the first central hole 212 and the first circumferential hole 213 on the front support unit 21 can maintain a relatively fixed positional relationship with the second positioning unit 12. The displacement of the rear support unit 22 in the horizontal direction is limited by the tightening ring 122, and the displacement of the rear support unit 22 in the vertical direction is limited by the cooperation of the pressing ring 123, the pressing block 124 and the positioning seat 121, so as to realize the positioning and fixing of the rear support unit 22. In cooperation with the auxiliary positioning of the first positioning unit 11 on the front support unit 21, the positioning and fixing of the support assembly 02 are realized.

[0078] In the embodiment, step S121 can include:

[0079] In step S1211, based on the positioning and fixing of the first positioning unit 11 on the gear ring unit 23 in the first state, the disc body 1111 can be removed and one end of the first positioning column 1122 can be inserted into the first circumferential hole 213. Thus, the first positioning unit 11 can coincide with the central axis of the support assembly 02 in the vertical direction, and the support assembly 02 can be positioned by the first positioning unit 11.

[0080] In step S1212, based on the removal of the disc body 1111 and the insertion of one end of the first positioning column 1122 into the first circumferential hole 213, the support assembly 02 can be placed in the second positioning unit 12 of the positioning assembly 01, and the second positioning column 1123 of the positioning rod 112 can be inserted into the third positioning hole 1216 of the positioning seat 121 of the second positioning unit 12. Thus, the central axes of the support assembly 02, the first positioning unit 11 and the second positioning unit 12 in the vertical direction can coincide, and the first positioning unit 11 and the second positioning unit 12 can have the same positioning reference. Through the auxiliary positioning of the first positioning unit 11 and the clamping positioning of the second positioning unit 12, the movement or rotation of the positioning assembly 01 in the horizontal direction can be limited, so as to limit the movement of the support assembly 02 in the horizontal direction, facilitate the subsequent processing of the support assembly 02, and improve the processing precision.

[0081] In the embodiment, step S20 can include:

[0082] In step S21, the first central hole 212 can be roughly milled by the cutter unit 32, and the cutter unit 32 can be moved to a set position in the direction close to the rear support unit 22.

[0083] In step S22, based on the movement of the cutter unit 32 to the set position, the cutter unit 32 can be controlled to stop feeding and milling.

[0084] Step S23, based on the tool unit 32 stop feeding milling, tool unit 32 keep rotating and rotating along the circumference of the first center hole 212 to the set time. After the tool milling to the set position, keep the milling amount to 0 idle for a certain time, so that the front support unit 21 and the rear support unit 22 can be further screwed, avoid the influence of thread loosening on machining precision. And can increase the surface smoothness of the first center hole 212.

[0085] In this embodiment, the first peripheral hole 213 in step S41 is machined with a finishing allowance greater than the first set value; the first center hole 212 in step S42 is machined with a finishing allowance greater than the second set value. When finishing the front support unit 21, the first peripheral hole 213 is machined first and then the first center hole 212 is machined, which can ensure the correction accuracy of the first center hole 212 as the center origin of all machining hole systems, thereby ensuring the center correction accuracy of the second center hole 222 of the positioning assembly 01 after turning over. By setting the finishing allowance of the first center hole 212 to be greater than the set value, the support stability of the first center hole 212 is better, and it is also convenient to eliminate the vibration marks generated when milling the first peripheral hole 213; the finishing allowance of the first peripheral hole 213 is greater than the set value, which can make the first peripheral hole 213 have sufficient machining allowance to eliminate the vibration marks generated during milling.

[0086] In this embodiment, step S50 can include:

[0087] Step S51, based on the tool unit 32 milling the rear support unit 22, the positioning assembly 01 and the support assembly 02 can be turned over and positioned on the machine table 31; wherein, such as Figure 11As shown, the machining assembly 03 can include a machine table 31 and a tool unit 32. The machine table 31 can include a frame body 311, a machining table 312, and a limiting block 313. One end of the frame body 311 can be fixedly connected to one side of the machining table 312, and the other end can extend away from the machining table 312. The machining table 312 can be used to support and position the positioning assembly 01 and the limiting block 313. The limiting block 313 can be detachably connected to the side of the machining table 312 close to the frame body 311. The limiting blocks 313 can be spaced apart on the machining table 312. The axis of one of the two adjacent limiting blocks 313 in the length direction is perpendicular to the axis of the other limiting block 313 in the length direction. The limiting block 313 abuts against the outer peripheral wall of the positioning assembly 01, so that the positioning of the positioning assembly 01 on the machining table 312 can be achieved by the limiting block 313. One end of the positioning assembly 01 is detachably connected to the machining table 312. One end of the tool unit 32 is detachably connected to the end of the frame body 311 away from the machining table 312, and the other end extends toward the machining table 312. The tool unit 32 can be used for rough milling and fine milling of the support assembly 02. After the machining of the current support unit 21 is completed, the second positioning unit 12 of the positioning assembly 01 is flipped together with the support assembly 02, so that the other end of the positioning assembly 01 is detachably connected to the machining table 312, and both limiting blocks 313 fully abut against the outer peripheral wall of the positioning assembly 01, so that the center axis of the support assembly 02 in the vertical direction does not change before and after the flipping of the second positioning unit 12 of the positioning assembly 01, facilitating the machining of the rear support unit 22.

[0088] In step S52, based on the flipping and positioning clamping of the second positioning unit 12 of the positioning assembly 01 and the support assembly 02 on the machine table 31, the tool unit 32 can sequentially perform rough milling and fine milling on the second peripheral side hole 223 of the rear support unit 22. For example, a bottom four-flute milling cutter with a diameter less than one-half of the diameter of the second peripheral side hole 223 can be selected for rough milling, and a spiral milling method can be used to complete the downcutting, leaving a fine processing allowance of 0.03 mm in the diameter direction. Since the support structure of the second central hole 222 has poorer stability, more fine processing allowance can be reserved during the machining of the second peripheral side hole 223 to facilitate the elimination of vibration marks generated during milling. When the second peripheral side hole 223 is fine processed, a bottom six-flute milling cutter with a diameter of one-half to two-thirds of the diameter of the second peripheral side hole 223 can be selected for fine processing, and the downcutting method of the spiral milling can be replaced by an interpolation arc milling method, so that the milling surface is smoother and more continuous, the vibration of the tool unit 32 can be reduced, and the machining stability can be improved.

[0089] In step S53, based on the second peripheral side hole 223, rough milling and finish milling are performed sequentially. The tool unit 32 can perform rough milling and finish milling on the second center hole 222 of the rear support unit 22 sequentially. Since the support stability of the second center hole 222 of the rear support unit 22 is worse than that of the second peripheral side hole 223, machining the second peripheral side hole 223 first and then the second center hole 222 can better ensure the machining accuracy of the second center hole 222.

[0090] This embodiment discloses a gearbox bracket assembly 02 machining system, which is applied to any of the gearbox bracket assembly 02 machining methods described in the above embodiments, such as... Figure 11 As shown, the gearbox bracket assembly 02 processing system includes: bracket assembly 02, positioning assembly 01, and processing assembly 03. The bracket assembly 02 is the workpiece to be processed; the positioning assembly 01 is used for positioning and fixing the bracket assembly 02 to facilitate the processing of the bracket assembly 02; when the positioning assembly 01 has completed the positioning and fixing of the bracket assembly 02, the processing assembly 03 can process the bracket assembly 02.

[0091] like Figure 2 As shown, the bracket assembly 02 may include a front bracket unit 21, a rear bracket unit 22, and a gear ring unit 23. For example... Figure 2 , Figure 4 As shown, the front support unit 21 may include a front support plate 211, a first central hole 212, a first peripheral hole 213, and a front support cylinder 214. The front support cylinder 214 may be cylindrical and hollow inside. One side of the front support plate 211 may be fixedly connected to one end of the front support cylinder 214. A plane on the side of the front support plate 211 away from the front support cylinder 214 may be machined, and this plane may be used as a machining reference plane for the support assembly 02. The machining reference plane is perpendicular to the vertical central axis of the support assembly 02. The first central hole 212 may penetrate the center of the front support plate 211. The first peripheral hole 213 may penetrate the front support plate 211. The first peripheral holes 213 may be spaced apart along the periphery of the first central hole 212. The hollow cavity of the front support cylinder 214 may communicate with the first central hole 212. Figure 3 , Figure 4As shown, the rear support unit 22 can include a first rear support disc 221, a second central hole 222, a second peripheral hole 223, a second rear support disc 224, a peripheral tooth 225, and a rear support column 226. The second central hole 222 can penetrate the center of the first rear support disc 221. The second peripheral hole 223 can penetrate the first rear support disc 221. The second peripheral hole 223 can be arranged at intervals along the periphery of the second central hole 222. One end of the peripheral tooth 225 can be fixedly connected to one side of the first rear support disc 221, and the other end can be fixedly connected to one side of the second rear support disc 224. The peripheral tooth 225 can be arranged at intervals along the circumference of the first rear support disc 221. At the fixed connection between the peripheral tooth 225 and the first rear support disc 221, a part of the first support disc protrudes away from the center. The side of the front support disc 211 away from the front support cylinder 214 can be machined to serve as a machining reference surface of the support assembly 02. By keeping the machining reference surface horizontal, the support assembly 02 can be easily machined, improving machining accuracy. The center of the side of the second rear support disc 224 away from the peripheral tooth 225 can be fixedly connected to one end of the rear support column 226. The front support cylinder 214 can be threadedly connected to the rear support column 226. The tooth ring unit 23 can include a first tooth ring 231 and a second tooth ring 232. The first tooth ring 231 can be annular, and the inner wall of the first tooth ring 231 can be provided with teeth; the second tooth ring 232 can be tapered annular, and one end of the second tooth ring 232 with a larger diameter can be fixedly connected to the first tooth ring 231, and the other end can abut against the second rear support disc 224 of the rear support unit 22. The tooth ring unit 23 can be sleeved on the outer periphery of the front support unit 21.

[0092] As shown, Figure 11 The machining assembly 03 can include a machine table 31 and a tool unit 32. The tool unit 32 can be used to machine the support assembly 02. The machine table 31 can include a frame 311, a machining table 312, and a limiting block 313. One end of the frame 311 can be fixedly connected to one side of the machining table 312, and the other end can extend away from the machining table 312. The machining table 312 can be used to support the positioning assembly 01 and the limiting block 313. The limiting block 313 can be detachably connected to one side of the machining table 312 close to the frame 311. The limiting blocks 313 can be arranged at intervals on the machining table 312. The axis of one of the two adjacent limiting blocks 313 in the length direction is perpendicular to the axis of the other limiting block 313 in the length direction. The limiting block 313 abuts against the outer peripheral wall of the positioning assembly 01, so that the positioning assembly 01 can be positioned on the machining table 312 by the limiting block 313. One end of the positioning assembly 01 is detachably connected to the machining table 312.

[0093] In other embodiments, the tool unit 32 can include a driving part 321 and a milling tool 322, the driving part 321 can drive the milling tool 322 to feed and rotate, thereby processing the support assembly 02, one end of the milling tool 322 is detachably connected to the end of the frame body 311 away from the machining table 312, and the other end extends towards the machining table 312. The milling tool 322 can be used for rough milling and fine milling of the support assembly 02. The gear ring unit 23 can include a first gear ring 231 and a second gear ring 232. The first gear ring 231 can be annular, and the inner wall of the first gear ring 231 can be distributed with teeth; the second gear ring 232 can be a tapered annular, and the end with a larger diameter of the second gear ring 232 can be fixedly connected with the first gear ring 231, and the other end can abut against the second rear support disc 224 of the rear support unit 22. The gear ring unit 23 can be sleeved on the outer circumferential side of the front support unit 21.

[0094] In the present embodiment, as shown in Figure 5 、 Figure 6 , the positioning assembly 01 can include a first positioning unit 11 and a second positioning unit 12. The first positioning unit 11 can include a positioning disc 111 and a positioning rod 112. As shown in Figure 8 , the positioning disc 111 can include a disc body 1111 and a first positioning hole 1112. The first positioning hole 1112 penetrates the disc body 1111, and the first positioning hole 1112 can be arranged on the disc body 1111 in a circumferential direction. The number and size of the first positioning hole 1112 match the number and size of the first circumferential hole 213. As shown in Figure 9 , the positioning rod 112 can include a rod body 1121, a first positioning column 1122 and a second positioning column 1123. One end of the first positioning column 1122 can be detachably connected with the rod body 1121, and the other end can extend away from the rod body 1121. The first positioning column 1122 can be arranged on the rod body 1121 in a length direction. The diameter of the first positioning column 1122 matches the diameter of the first circumferential hole 213 and the first positioning hole 1112. One end of the second positioning column 1123 can be detachably connected with the rod body 1121, and the other end can extend away from the rod body 1121. The number of the second positioning column 1123 can be two, and the two second positioning columns 1123 can be arranged at both ends of the rod body 1121 respectively. The first positioning column 1122 can pass through the first positioning hole 1112 and the first circumferential hole 213 in sequence, so that the state of the first positioning hole 1112 and the first circumferential hole 213 can be limited by the two first positioning columns 1122 on the positioning rod 112, and the movement or rotation of the front support unit 21 and the positioning disc 111 in the horizontal direction can be limited.

[0095] The first positioning unit 11 can further comprise a first state. The first state can comprise that the outer peripheral wall of the disc body 1111 abuts against the inner peripheral wall of the gear ring unit 23, one end of the first positioning column 1122 passes through the first positioning hole 1112, the first peripheral hole 213 of the front support unit 21 in sequence, and the gear ring unit 23 is detachably connected with the rear support unit 22 of the support assembly 02. When the first positioning unit 11 is in the first state, the two first positioning columns 1122 of the positioning rod 112 can limit the displacement or rotation of the positioning disc 111 in the horizontal direction, limit the positioning disc 111 to be in the central position of the front support unit 21 in the vertical direction; the outer peripheral wall of the disc body 1111 of the positioning disc 111 abuts against the inner peripheral wall of the gear ring unit 23, thereby limiting the displacement of the gear ring unit 23 in the horizontal direction, limiting the central axis position of the gear ring unit 23 to coincide with the central position of the front support unit 21. In the first state, the gear ring unit 23 can be detachably connected with the rear support unit 22 of the support assembly 02, and the displacement of the gear ring unit 23 can be limited to position and fix the gear ring unit 23.

[0096] As Figure 5 , Figure 7As shown, the second positioning unit 12 can include a positioning seat 121, a tightening ring 122, a compression ring 123, and a compression block 124. The positioning seat 121 is the main body part of the second positioning unit 12, the tightening ring 122 can be used to limit the displacement of the support assembly 02 in the horizontal direction, and the compression ring 123 and the compression block 124 cooperate and can be used to limit the displacement of the support assembly 02 in the vertical direction. The positioning seat 121 can include a seat body 1211, a second positioning hole 1212, an avoidance hole 1213, a tightening screw hole 1214, a limiting groove 1215, and a third positioning hole 1216. The seat body 1211 is the main body part of the positioning seat 121, the second positioning hole 1212 can be used to place the support assembly 02, and after the support assembly 02 is placed in the second positioning hole 1212, part of the support assembly 02 can be located in the avoidance hole 1213; a bolt of appropriate size can be pressed through the tightening screw hole 1214 to compress the compression ring 123, thereby limiting the displacement of the support assembly 02 in the horizontal direction; the limiting groove 1215 can be used for the fixation of the compression block 124; and the third positioning hole 1216 can cooperate with the second positioning column 1123 on the positioning rod 112 to achieve the fixation of the positioning rod 112. One end of the second positioning hole 1212 communicates with one end of the avoidance hole 1213. The second positioning hole 1212 and the avoidance hole 1213 penetrate the seat body 1211 in sequence. The diameter of the avoidance hole 1213 is slightly smaller than that of the second positioning hole 1212, so that a stepped step can be formed at the junction of the second positioning hole 1212 and the avoidance hole 1213, and the upper surface of the stepped step can serve as a standard reference surface of the support assembly 02. When the positioning assembly 01 is positioned and fixed on the machine table 31, the standard reference surface is in a horizontal state, and the machining reference surface coincides with the standard reference surface, thereby facilitating the machining of the support assembly 02. The machining reference surface is machined from the plane on the side of the first rear support disc 221 away from the front support cylinder 214, and the machining reference surface is perpendicular to the central axis of the support assembly 02 in the vertical direction. The outer peripheral wall of the tightening ring 122 abuts against the inner peripheral wall of the second positioning hole 1212 close to the avoidance hole 1213. The tightening screw hole 1214 penetrates the seat body 1211 in the radial direction of the seat body 1211 to communicate with the second positioning hole 1212. The opening of one end of the tightening screw hole 1214 close to the second positioning hole 1212 is located in the outer peripheral wall area of the tightening ring 122. The tightening ring 122 is an open ring with a certain width, and during positioning, the tightening ring 122 and the support assembly 02 can be placed in the second positioning hole 1212 of the positioning seat 121 at the same time on the stepped step formed at the junction of the second positioning hole 1212 and the avoidance hole 1213, and the tightening ring 122 and the peripheral side teeth 225 of the support assembly 02 are spaced apart or partially abut.The bolt can be in abutment with the tightening ring 122 through the tightening hole 1214. By adjusting the bolt, the tightening ring 122 can be extruded, so that the tightening ring 122 is in close abutment with the circumferential teeth 225 of the support assembly 02, so as to limit the displacement of the circumferential teeth 225 in the horizontal direction; at the same time, the inner wall of the tightening ring 122 is in abutment with the circumferential teeth 225, and the contact area is larger, so as to reduce the pressure intensity borne by the circumferential teeth 225 and protect the circumferential teeth 225 from being damaged. The limiting grooves 1215 can be arranged at intervals along the circumferential side of the second positioning hole 1212 at one end of the seat body 1211 away from the avoiding hole 1213. The limiting grooves 1215 can be recessed from one end of the seat body 1211 towards the other end of the seat body 1211. The limiting grooves 1215 are in communication with the second positioning hole 1212. The third positioning hole 1216 can be symmetrically arranged at the end face of the seat body 1211 away from the avoiding hole 1213. The third positioning hole 1216 can be located in the region between two adjacent limiting grooves 1215. The third positioning hole 1216 can cooperate with the second positioning column 1123 on the positioning rod 112 to realize the fixation of the positioning rod 112 on the positioning seat 121, so as to make the positions of the central axes of the first positioning unit 11 and the second positioning unit 12 in the vertical direction coincide, so that the first positioning unit 11 and the second positioning unit 12 have the same positioning reference, facilitating the positioning of the support assembly 02. Figure 10 As shown, the compression ring 123 can include a ring body 1231 and a compression groove 1232. The compression groove 1232 can be arranged at intervals on one side of the ring body 1231. The compression groove 1232 can be recessed from one side of the ring body 1231 towards the other side of the ring body 1231. The outer peripheral wall of the ring body 1231 can be in abutment with the inner peripheral wall of the second positioning hole 1212 close to the limiting groove 1215. The side of the ring body 1231 away from the compression groove 1232 can be in abutment with the side of the second rear support disc 224 away from the circumferential teeth 225. One end of the compression block 124 is in abutment with the compression groove 1232, and the other end is detachably connected with the limiting groove 1215. The width of the compression block 124 is adapted to the width of the limiting groove 1215 and the compression groove 1232, and the displacement of the compression groove 1232 in the vertical direction can be limited by the compression block 124 cooperating with the positioning seat 121, so as to limit the displacement of the support assembly 02 in the vertical direction. The first state further includes that one end of the second positioning column 1123 away from the rod body 1121 extends into the third positioning hole 1216, so that the central axis of the support assembly 02 coincides with the central axes of the first positioning unit 11 and the second positioning unit 12 in the vertical direction, so that the first positioning unit 11 and the second positioning unit 12 have the same positioning reference. The movement or rotation of the positioning assembly 01 in the horizontal direction can be limited by the first positioning unit 11 and the second positioning unit 12, so as to limit the movement of the support assembly 02 in the horizontal direction, facilitating the machining of the support assembly 02 and improving the machining precision.

[0097] In other embodiments, a plurality of lightening grooves can be formed on the positioning seat 121 of the positioning assembly 01 without affecting the overall performance, so as to be more light and easy to operate.

[0098] It should be understood by those skilled in the art that the above embodiments are specific cases for implementing the present disclosure, and in actual applications, various changes can be made in form and details without departing from the spirit and scope of the present disclosure.

Claims

1. A reducer bracket assembly machining system, characterized by, The application relates to a bracket assembly, a positioning assembly and a machining assembly. The bracket assembly comprises a front bracket unit, a rear bracket unit and a gear ring unit; the front bracket unit comprises a front bracket disc, a first central hole, a first circumferential hole, a front bracket cylinder; one side of the front bracket disc is fixedly connected with one end of the front bracket cylinder; the first central hole penetrates the central position of the front bracket disc; the first circumferential hole penetrates the front bracket disc; the first circumferential hole is arranged at intervals along the circumferential side of the first central hole; the hollow cavity of the front bracket cylinder is in communication with the first central hole; the rear bracket unit comprises a first rear bracket disc, a second central hole, a second circumferential hole, a second rear bracket disc, a circumferential tooth and a rear bracket column; the second central hole penetrates the central position of the first rear bracket disc; the second circumferential hole penetrates the first rear bracket disc; the second circumferential hole is arranged at intervals along the circumferential side of the second central hole; one end of the circumferential tooth is fixedly connected with one side of the first rear bracket disc, and the other end is fixedly connected with one side of the second rear bracket disc; the circumferential tooth is arranged at intervals in the circumferential direction of the first rear bracket disc; the central position of the side, away from the circumferential tooth, of the second rear bracket disc is fixedly connected with one end of the rear bracket column; the front bracket cylinder is screw-connected with the rear bracket column; The positioning assembly is used for positioning and fixing the bracket assembly; The machining assembly comprises a machine table and a cutter unit; the machine table comprises a frame body, a machining table and a limiting block; one end of the frame body is fixedly connected with one side of the machining table, and the other end extends away from the machining table; the limiting block is detachably connected with the side of the machining table, close to the frame body; the limiting blocks are arranged at intervals on the machining table; the axis of one of the limiting blocks in the length direction is perpendicular to the axis of the other limiting block in the length direction; the limiting block abuts against the outer circumferential wall of the positioning assembly; one end of the positioning assembly is detachably connected with the machining table; one end of the cutter unit is detachably connected with the end of the frame body, away from the machining table, and the other end extends towards the machining table; the cutter unit is used for rough milling and fine milling of the bracket assembly. The positioning assembly comprises a first positioning unit and a second positioning unit; the first positioning unit comprises a positioning disc and a positioning rod; the positioning disc comprises a disc body and a first positioning hole; the first positioning hole penetrates the disc body; the first positioning hole is arranged on the disc body in a circumferential direction of the disc body; the positioning rod comprises a rod body, a first positioning column and a second positioning column; one end of the first positioning column is detachably connected with the rod body, and the other end extends away from the rod body; the first positioning column is arranged on the rod body in a length direction of the rod body; one end of the second positioning column is detachably connected with the rod body, and the other end extends away from the rod body; the two second positioning columns are arranged at two ends of the rod body respectively; the first positioning unit further comprises a first state; in the first state, an outer peripheral wall of the disc body abuts against an inner peripheral wall of the gear ring unit, one end of the first positioning column sequentially penetrates the first positioning hole and a first side hole of the front support unit, and the gear ring unit is detachably connected with the rear support unit of the support assembly; The second positioning unit comprises a positioning seat, a tightening ring, a pressing ring and a pressing block; the positioning seat comprises a seat body, a second positioning hole, an avoiding hole, a tightening screw hole, a limiting groove and a third positioning hole; one end of the second positioning hole is in communication with one end of the avoiding hole; the second positioning hole and the avoiding hole sequentially penetrate the seat body; an outer peripheral wall of the tightening ring abuts against an inner peripheral wall of the second positioning hole close to the avoiding hole; the tightening screw hole penetrates the seat body from an outer peripheral side of the seat body in a radial direction of the seat body to be in communication with the second positioning hole; an opening of one end of the tightening screw hole close to the second positioning hole is located in an outer peripheral wall region of the tightening ring; the limiting groove is arranged on the seat body away from the avoiding hole in a circumferential direction of the second positioning hole; the limiting groove is recessed from one end of the seat body towards the other end of the seat body; the limiting groove is in communication with the second positioning hole; the third positioning hole is symmetrically arranged on an end face of the seat body away from the avoiding hole; the third positioning hole is located in a region between two adjacent limiting grooves; the pressing ring comprises a ring body and a pressing groove; the pressing groove is arranged on one side of the ring body; the pressing groove is recessed from one side of the ring body towards the other side of the ring body; an outer peripheral wall of the ring body abuts against an inner peripheral wall of the second positioning hole close to the limiting groove; one side of the ring body away from the pressing groove abuts against one side of the second rear support disc away from the circumferential side teeth; one end of the pressing block abuts against the pressing groove, and the other end is detachably connected with the limiting groove; a stepped step is formed at a junction of the second positioning hole and the avoiding hole; the first state further comprises that one end of the second positioning column away from the rod body extends into the third positioning hole.

2. The method for processing the reducer support assembly, applied to the reducer support assembly processing system of claim 1; characterized in that, The machining method of the speed reducer support assembly comprises: In step S10, the positioning assembly is positioned and fixed on a machine table based on positioning and fixing of the rear support unit of the support assembly being completed. Step S20, based on the positioning of the positioning assembly on the machine table, the tool unit mills the first center hole of the front support unit of the support assembly; wherein the tool unit mills the front support unit in the same direction as the front support unit and the rear support unit thread locking direction; Step S30, based on the completion of the first center hole milling rough machining, the tool unit mills the first side hole of the front support unit of the support assembly; wherein the first side hole is arranged along the periphery of the first center hole; Step S40, based on the completion of the first side hole milling rough machining, the tool unit respectively mills the first side hole and the first center hole; Step S50, based on the completion of the first side hole and the first center hole milling finishing, the tool unit mills the rear support unit.

3. The machining method of claim 2, wherein the step S40 comprises: Step S41, based on the completion of the first side hole milling rough machining, the tool unit mills the first side hole; Step S42, based on the completion of the first side hole milling finishing, the tool unit mills the first center hole.

4. The machining method of claim 2, wherein the step S10 comprises: Step S11, based on the positioning requirement of the support assembly, the first positioning unit of the positioning assembly is positioned and fixed in a first state to the gear ring unit of the support assembly; wherein the support assembly comprises a front support unit, a rear support unit, and the gear ring unit; one end of the front support unit is threadedly connected to one end of the rear support unit; the inner circumferential wall of the gear ring unit is arranged in a spaced manner with the outer circumferential wall of the front support unit; one end of the gear ring unit abuts against one end of the rear support unit close to the front support unit; the first positioning unit comprises a positioning disc and a positioning rod; the positioning disc comprises a disc body and a first positioning hole; the first positioning hole penetrates the disc body; the first positioning hole is arranged on the disc body in a spaced manner along the circumferential direction of the disc body; the positioning rod comprises a rod body and a first positioning column; one end of the first positioning column is detachably connected to the rod body, and the other end extends away from the rod body; the first positioning column is arranged on the rod body in a spaced manner along the length direction of the rod body; the first state comprises that the outer circumferential wall of the disc body abuts against the inner circumferential wall of the gear ring unit, and one end of the first positioning column sequentially passes through the first side hole of the front support unit and the first positioning hole, and the gear ring unit is detachably connected to the rear support unit of the support assembly; Step S12, based on the completion of the positioning and fixing of the first positioning unit to the gear ring unit in the first state, the second positioning unit of the positioning assembly positions and fixes the support assembly.

5. The machining method of claim 4, wherein the step S12 comprises: ​ ​ ​ Step S121, based on the first positioning unit in the first state of the ring gear unit positioning fixed complete, the bracket assembly is placed in the second positioning unit of the positioning assembly; Step S122, based on the bracket assembly placed in the second positioning unit, the inner wall of the tightening ring of the second positioning unit and the outer wall of the circumferential side tooth of the rear support unit abut; Step S123, based on the inner wall of the tightening ring and the outer wall of the circumferential side tooth abut, one end of the compression ring of the second positioning unit and one side of the second rear support disc of the rear support unit abut; Step S124, based on the one end of the compression ring and one side of the rear support disc abut, the compression groove of the compression ring is aligned with the limiting groove of the positioning seat of the second positioning unit and put into the compression block; wherein one end of the compression block of the second positioning unit abuts with the compression groove, and the other end is detachably connected with the limiting groove; Step S125, based on the compression groove and the limiting groove are aligned and put into the compression block, the second positioning unit completes the positioning and fixing of the bracket assembly.

6. The machining method of the support assembly of the speed reducer according to claim 5, wherein the step S121 comprises: Step S1211, based on the first positioning unit in the first state of the ring gear unit positioning fixed complete, the disc body is taken out and one end of the first positioning column is inserted into the first circumferential hole; Step S1212, based on the disc body is taken out and one end of the first positioning column is inserted into the first circumferential hole, the bracket assembly is placed in the second positioning unit of the positioning assembly and the second positioning column of the positioning rod is inserted into the third positioning hole of the positioning seat of the second positioning unit.

7. The machining method of the support assembly of the speed reducer according to claim 2, wherein the step S20 comprises: Step S21, based on the cutter unit rough milling the first center hole, the cutter unit moves to a set position in the direction close to the rear support unit; Step S22, based on the cutter unit moving to a set position, the cutter unit is controlled to stop feeding milling; Step S23, based on the cutter unit stopping feeding milling, the cutter unit keeps rotating and rotates along the circumference of the first center hole to a set time.

8. The machining method of the support assembly of the speed reducer according to claim 3, wherein the milling finishing allowance of the first circumferential hole in the step S41 is greater than a first set value; the milling finishing allowance of the first center hole in the step S42 is greater than a second set value.

9. The machining method of the support assembly of the speed reducer according to claim 2, wherein the step S50 comprises: Step S51, based on the cutter unit milling the rear support unit, the positioning assembly and the bracket assembly are turned and positioned and fixed on the machine table; ​ ​ ​ ​ Step S52, based on the positioning assembly and the support assembly being turned and positioned and fixed on the machine table, the tool unit sequentially performs rough milling and fine milling on the second peripheral hole of the rear support unit; Step S53, based on the second peripheral hole sequentially completing rough milling and fine milling, the tool unit sequentially performs rough milling and fine milling on the second center hole of the rear support unit.

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