CN214558808U

CN214558808U - Porous high-efficient processingequipment in disc part spoke groove

Info

Publication number: CN214558808U
Application number: CN202120569771.8U
Authority: CN
Inventors: 孟怡辰; 安宁; 黄俊诚; 孟江涛
Original assignee: Luoyang Freco Automotive Parts Co ltd
Current assignee: Luoyang Freco Automotive Parts Co ltd
Priority date: 2021-03-20
Filing date: 2021-03-20
Publication date: 2021-11-02
Anticipated expiration: 2031-03-20

Abstract

The utility model belongs to the technical field of disc part machining production auxiliary fixtures and specifically relates to a porous high-efficient processingequipment of disc part spoke inslot is related to, include that the opening pad compresses tightly subassembly, fixed axle, work piece radial positioning cover, single-row tapered roller bearing I, the single-row tapered roller bearing II of second, fixed bearing frame, rotatable bearing frame, processingequipment compress tightly subassembly I, processingequipment compress tightly subassembly II, elastic positioning component, processingequipment compress tightly subassembly I and processingequipment compress tightly the subassembly II the two and install at the both sides position of fixed bearing frame and compress tightly the workstation of outside lathe with the fixed bearing frame, the utility model discloses when specifically using, not only operation application method is simple, reliable and stable, and the preparation is convenient moreover, and is strong to the product suitability, very big improvement the porous machining efficiency of disc part spoke inslot.

Description

Porous high-efficient processingequipment in disc part spoke groove

Technical Field

The utility model belongs to the technical field of the dish type part machining auxiliary fixtures and specifically relates to a porous high-efficient processingequipment in dish type part spoke inslot is related to.

Background

The disc part is one of typical parts common in machining, and is widely applied to various industries, particularly the gear industry. With continuous optimization of gear material performance and more mature heat treatment technology, under the condition that gear parts meet the requirements of service life and various performances, in order to respond to the trend of national green manufacturing and lifelong environmental protection, the requirements of light weight of the gear parts are more and more, for most gearbox gears, transmission case gears and intermediate axle interaxial differential driven gears of vehicles, spoke grooves with different depths are formed at two ends of the gears, most gears are provided with the spoke grooves, a plurality of weight reducing holes or process holes with different quantities are formed in the spoke grooves, and the conventional machining process for the weight reducing holes or the process holes (3-8) of the spoke grooves can be selected according to the following schemes: respectively drilling and processing each hole on the rocker drill by utilizing a tool and a drill plate; on a numerical control milling machine, adopting a tool to clamp once, and respectively milling each hole by using a programmed numerical control program; a self-made special machine tool (gang drill) is selected or improved, a tool is adopted for clamping, and multiple holes are drilled once or twice (every two drills) according to the number of the heads of the gang drill. Compared with the above processing technical schemes, the method has the advantages and disadvantages that: if a plurality of hole groups are machined by using the rocker drill, the drill plate and the workpiece are assembled and disassembled, the machining efficiency is low, the labor intensity of workers is high, and the equipment investment of the rocker drill is also large; if a numerical control milling machine is used for processing a plurality of hole groups, although the efficiency is greatly improved relative to a rocker drill and the labor intensity is also reduced relative to the rocker drill, the numerical control milling machine has larger one-time investment and has certain requirements on the skill of an operator; if a selected or improved self-made special machine tool (gang drill) is used, the tool is adopted for clamping, and multiple holes are drilled and machined once or twice (every two drills), although the efficiency is greatly improved, the labor intensity is moderate, the equipment investment is large, the improvement of the self-made precision is difficult to achieve the expectation, the more unfavorable condition is that different equipment is needed to meet different requirements along with the number of the drilled holes and the unequal center distance of the workpiece, and the equipment investment is larger. Therefore, based on the above situation, it is urgently needed to design a high-efficiency drilling device for drilling multiple holes in the spoke groove of the disc part, which has the advantages of simple structure, simple and convenient operation, small equipment investment and stable machining quality.

SUMMERY OF THE UTILITY MODEL

In order to solve the porous equipment investment who exists when adding man-hour of current dish type part spoke inslot big, the processingequipment structure is complicated, the operation is inconvenient, machining efficiency is low, the big and unstable problem of processingquality of workman intensity of labour, the utility model provides a porous high-efficient processingequipment of dish type part spoke inslot, its technical scheme is as follows:

a disc part spoke groove inner porous high-efficiency processing device comprises an opening pad pressing component, a fixed shaft, a workpiece radial positioning sleeve, a single-row tapered roller bearing I, a second single-row tapered roller bearing II, a fixed bearing seat, a rotatable bearing seat, a processing device pressing component I, a processing device pressing component II and an elastic positioning component, wherein the fixed bearing seat is arranged on a workbench of an external machine tool, the processing device pressing component I and the processing device pressing component II are arranged at two side parts of the fixed bearing seat and press the fixed bearing seat on the workbench of the external machine tool, a stepped hole I is formed in the fixed bearing seat, the outer diameter of the single-row tapered roller bearing I is arranged in the stepped hole I and in transition fit with the stepped hole I for installing and supporting the lower part of the fixed shaft of the rotatable bearing seat, and the inner diameter part of the single-row tapered roller bearing I is arranged and in interference fit with the inner diameter of the single-row tapered roller bearing I The three-stage rotary bearing is characterized in that the three-stage rotary bearing is connected with the fixed shaft, a three-stage boss is processed on the fixed shaft, the rotary bearing seat is arranged at the upper end part of the three-stage boss processed on the fixed shaft and is in contact with the fixed shaft in a radial sliding fit manner, a stepped hole II is processed in the rotary bearing seat, the outer diameter of the single-row tapered roller bearing II is arranged in the stepped hole II and is in transition fit with the stepped hole II, a workpiece radial positioning sleeve for supporting a workpiece is arranged at the inner diameter part of the single-row tapered roller bearing II and is connected with the inner diameter of the single-row tapered roller bearing II in an interference fit manner, three notches are milled at the upper end of the rotary bearing seat, scrap iron are convenient to clear, three positioning support tables are reserved for supporting the workpiece, a step is processed at the upper part of the workpiece radial positioning sleeve, a gap is reserved between the step and the workpiece when the step is assembled, and an opening pad pressing assembly is fixedly arranged at the upper part of the fixed shaft, the opening pad compresses tightly the subassembly and can compress tightly the work piece on three location brace tables of rotatable bearing frame, fixed bearing frame on process and to have the mounting hole, install the elastic locating subassembly in the mounting hole, set up the tapering blind hole in the bottom of rotatable bearing frame, the top of elastic locating subassembly contacts and carries out rotational positioning to the rotatable bearing frame with the tapering blind hole that the rotatable bearing frame bottom was seted up.

The quantity and the graduation of the taper blind holes at the bottom of the rotatable bearing seat are consistent with those of the holes to be processed on the workpiece to be processed.

The fixed bearing seat can be processed with N mounting holes for mounting the elastic positioning component, and each mounting hole can be internally provided with the elastic positioning component.

The elastic positioning assembly comprises a plug, a spring and a steel ball, wherein the steel ball is arranged at the top of the spring and is in contact with the spring, the spring is arranged on the upper portion of the plug and is in contact with the plug, the steel ball, the spring and the plug are sequentially arranged in a mounting hole in a fixed bearing seat from top to bottom, an internal thread is processed at the lower portion in the mounting hole, an external thread is processed at the outer portion of the plug, the plug is arranged in the mounting hole and is connected with the internal thread formed in the mounting hole in a matched mode through the thread, and in order to limit the steel ball, the diameter of an opening at the top of the mounting hole is smaller than the diameter of the steel ball.

The bottom of the fixed bearing seat is provided with a rectangular positioning block, and the rectangular positioning block is matched with a T-shaped groove on a vertical bench drill or a vertical drilling machine workbench to perform Y-direction positioning on the bottom of the fixed bearing seat.

The opening pad pressing assembly comprises an opening pad pressing nut, a fixed shaft thread part and an opening pad, wherein a through hole I is processed in the center of the opening pad, the diameter of the through hole I is larger than that of the fixed shaft thread part, the fixed shaft thread part penetrates through the through hole I on the opening pad, and the opening pad pressing nut 1 is installed on the upper portion of a fixed shaft and is matched and connected with the fixed shaft thread part.

The processing device pressing assembly I and the processing device pressing assembly II are of the same structure and mainly comprise a pressing plate supporting plate, a T-shaped bolt, a processing device pressing nut and a processing device pressing plate, a through hole II is processed in the center of the processing device pressing plate, the diameter of the through hole II is larger than that of the T-shaped bolt, the T-shaped bolt penetrates through the through hole II formed in the processing device pressing plate, the bottom of the pressing plate supporting plate is arranged on a workbench of an external machine tool, the upper portion of the pressing plate supporting plate is arranged at the bottom of the processing device pressing plate and is connected with the processing device pressing plate, and the processing device pressing nut is arranged on the upper portion of the T-shaped bolt and is connected with the T-shaped bolt in a threaded fit mode.

Furthermore, the upper end surface of the single-row tapered roller bearing II is provided with an annular rubber chip blocking plate, the annular rubber chip blocking plate is in contact with the upper end surface of the single-row tapered roller bearing II, and therefore drill chips can be prevented from entering the single-row tapered roller bearing II when the single-row tapered roller bearing II is used.

The machining process of the high-efficiency machining device for the holes in the spoke grooves of the disc parts comprises the following steps:

s1, performing rough turning forming according to drawings of parts of the porous efficient machining device, and reserving finish machining allowance for each matching surface during machining;

s2, carrying out heat treatment on the rough turning part according to the drawing requirements;

s3, performing finish machining on each part subjected to the heat treatment in the step S2;

s4, detecting and accepting each part after finish machining in the step S3, and detecting and accepting purchased parts;

s5, assembling each qualified and relevant part strictly according to the requirements of an assembly drawing, after the assembly is completed, detecting whether the rotatable bearing seat rotates flexibly and the indexing positioning is reliable, after the abnormity is verified, installing the part to be processed, fastening the workpiece on the porous high-efficiency processing device by using the open pad compression nut, the fixed shaft thread part and the open pad, and detecting whether the rotatable bearing seat rotates flexibly and the indexing positioning is reliable again;

s6, after all the procedures are completed and no abnormity is detected finally, the porous high-efficiency processing device can be connected with a machine tool through the processing device pressing component I and the processing device pressing component II, before connection, the center of a main shaft of the drilling processing equipment is overlapped with the center of the working table X, Y axis direction of the drilling processing equipment and is fastened and locked, the rectangular positioning block arranged at the bottom of the fixed bearing seat is matched with the T-shaped groove on the working table of the drilling processing equipment to play a role in Y-direction positioning, after the center of the porous high-efficiency processing device is overlapped with the center of the main shaft of the drilling processing equipment, the center of a porous to be processed is deviated along the X-axis direction by half of the center distance of the porous to be processed, and the porous high-efficiency processing device can be fastened and fixed with the machine tool through the processing device pressing component I and the processing device pressing component II by T-shaped bolts.

The utility model has the advantages that: the utility model discloses overall structure designs the science, and production and processing technology is simple and convenient, the utility model discloses a porous high-efficient processingequipment when specifically using, mainly compresses tightly subassembly, fixed axle, work piece radial positioning cover, single-row tapered roller bearing I, the single-row tapered roller bearing II of second, the common installation cooperation of component parts such as fixed bearing frame, rotatable bearing frame and elastic positioning subassembly through the opening pad, has solved the production machining efficiency that the porous drilling of dish type part spoke inslot exists and has hanged down, the equipment investment is big, especially the big problem of intensity of labour. The utility model discloses when specifically using, not only operation application method is simple, reliable and stable, and the preparation is convenient moreover, and is strong to product (how much and the centre-to-centre spacing size in hole) suitability, does not have special requirement to processing equipment, operating personnel, very big improvement the porous machining efficiency of dish type part spoke inslot.

Drawings

Fig. 1 is a schematic view of the overall installation structure of the porous high-efficiency processing device of the present invention;

FIG. 2 is a schematic cross-sectional view of a rotatable bearing seat in the multi-hole high-efficiency machining device of the present invention;

FIG. 3 is a schematic structural view of a rotatable bearing seat in the multi-hole high-efficiency processing device of the present invention;

fig. 4 is a partially enlarged schematic view of a tapered blind hole at the bottom of the rotatable bearing seat according to the present invention;

fig. 5 is a schematic cross-sectional view of a fixed bearing seat according to the present invention;

FIG. 6 is a schematic view showing the local enlargement of the mounting hole for sealing the mounting hole of the vertically movable steel ball at the bottom of the fixed bearing seat

Fig. 7 is a schematic view of the mounting structure of the rotatable bearing seat, the fixed bearing seat and the fixed shaft according to the present invention;

the reference numbers in the figures are: 1-an opening pad compression nut, 2-an opening pad, 3-a fixed shaft, 4-a part to be processed, 5-a workpiece radial positioning sleeve, 6-an annular rubber chip baffle, 7-a single-row tapered roller bearing I, 8-a fixed bearing seat, 9-a processing device compression nut, 10-a processing device pressing plate, 11-a pressing plate support plate, 12-T type bolts, 13-a plug, 14-a spring, 15-a steel ball, 16-a rotatable bearing seat, 17-a single-row tapered roller bearing II, 18-a mounting hole, 19-a stepped hole I, 20-a stepped hole II, 21-a tapered blind hole, 22-a step, 23-a positioning support table and 24-a three-step boss.

Detailed Description

Specific example 1: the technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. It should be noted that: in the present invention, all the embodiments and preferred embodiments mentioned herein can be combined with each other to form a new technical solution, if not specifically stated. In the present invention, all the technical features mentioned herein and preferred features can be combined with each other to form a new technical solution, if not specifically stated. The disclosed "range" may be in the form of a lower limit and an upper limit, respectively one or more lower limits, and one or more upper limits. In the present invention, unless otherwise defined, technical and scientific terms used herein have the same meaning as is familiar to those skilled in the art. In addition, any methods or materials similar or equivalent to those described herein can be used in the present invention. In order to solve the present a plurality of lightening holes or fabrication holes of a set of in disc part man-hour at present, the machining efficiency who exists is low, intensity of labour is big, need to drop into professional equipment, a great deal of problems such as equipment drops into greatly, the utility model provides a porous high-efficient processingequipment in disc part spoke inslot, specific saying so, as shown in description attached figure 1-7, a porous high-efficient processingequipment in disc part spoke inslot mainly includes, opening pad compresses tightly subassembly, fixed axle 3, work piece radial positioning cover 5, single-row tapered roller bearing I7, second single-row tapered roller bearing II17, fixed bearing frame 8, rotatable bearing frame 16, processingequipment compresses tightly subassembly I, processingequipment compresses tightly subassembly II, elastic positioning subassembly, fixed bearing frame 8 for installing fixed axle 3 installs on the workstation of outside lathe, processingequipment compresses tightly subassembly I and processingequipment compress tightly the subassembly II two and install the both sides position of fixed bearing frame 8 and with fixed axle pressing the both sides position of fixed axle The bearing seat 8 is pressed on a workbench of an external machine tool, the processing device pressing component I and the processing device pressing component II are the same in structure and comprise a pressing plate support plate 11, a T-shaped bolt 12, a processing device pressing nut 9 and a processing device pressing plate 10, a through hole II is processed in the center of the processing device pressing plate 10, in order to facilitate the pressing operation of the processing device pressing nut 9 on the processing device pressing plate 10, the diameter of the through hole II is larger than 1-2mm of the diameter of the T-shaped bolt 12, the T-shaped bolt 12 penetrates through the through hole II formed in the processing device pressing plate 10, when the processing device pressing nut is installed and used, the pressing plate support plate 11 is arranged between the workbench of the external machine tool and the processing device pressing plate 10, and the processing device pressing nut 9 is installed on the upper portion of the T-shaped bolt 12 and is connected with the T-shaped bolt 12 in a threaded fit mode. A stepped hole I19 used for installing a single-row tapered roller bearing I7 is arranged in a fixed bearing seat 8, the outer diameter (bearing outer ring) of the single-row tapered roller bearing I7 is arranged in the stepped hole I19 and is in transition fit with the stepped hole I19, the lower part of a fixed shaft 3 used for installing and supporting a rotatable bearing seat 16 is arranged at the inner diameter (bearing inner ring) part of the single-row tapered roller bearing I7 and is connected with the inner diameter of a single-row tapered roller bearing I7 in an interference fit manner, a three-step boss 24 is processed on the fixed shaft 3, the rotatable bearing seat 16 is arranged at the upper end part of the three-step boss 24 processed on the fixed shaft 3 and is in radial sliding fit contact with the fixed shaft 3, a stepped hole II20 used for installing a single-row tapered roller bearing II17 is processed in the rotatable bearing seat 16, the outer diameter (bearing outer ring) of the single-row tapered roller bearing II17 is arranged in the stepped hole II20 and is in transition fit with the stepped hole II20, the workpiece radial positioning sleeve 5 for the part 4 to be processed is arranged at the inner diameter part of the single-row tapered roller bearing II17 and is connected with the inner diameter (bearing inner ring) of the single-row tapered roller bearing II17 in an interference fit manner, the upper part of the workpiece radial positioning sleeve 5 is processed with a step 22, a gap is reserved between the step 22 and the workpiece when being assembled, three gaps are milled and processed at the upper end of a rotatable bearing seat to facilitate the removal of scrap iron, three positioning support tables 23 are reserved on the rotatable bearing seat to support the workpiece, when in use, the lower part of the part 4 to be processed can be placed on the upper end surfaces of the three positioning support tables 23 on the rotatable bearing seat 16, an opening pad pressing component for pressing the part 4 to be processed is fixedly arranged at the upper part of the fixed shaft 3, and the opening pad pressing component mainly comprises an opening pad pressing nut 1, a fixed shaft thread part and an opening pad 2, the central part of the opening pad 2 is provided with a through hole I, the diameter of the through hole I is 1-2mm larger than that of the thread part of the fixed shaft, the thread part of the fixed shaft penetrates through the through hole I on the opening pad, and the opening pad compression nut 1 is arranged on the upper part of the fixed shaft and is matched and connected with the thread part of the fixed shaft. The fixed bearing seat 8 is provided with a mounting hole 18, an elastic positioning component for accurately positioning the rotatable bearing seat 16 is arranged in the mounting hole 18, the bottom of the rotatable bearing seat 16 is provided with a taper blind hole 21, the elastic positioning component mainly comprises a plug 13, a spring 14 and a steel ball 15, the spring 14 and the plug 13 are sequentially arranged in the mounting hole on the fixed bearing seat 8 from top to bottom, an internal thread is arranged at the lower part in the mounting hole 18, an external thread is arranged at the outer part of the plug 13, the plug 13 is arranged in the mounting hole 18 and is connected with the internal thread arranged in the mounting hole 18 through thread matching, it is required to be described that in order to limit the steel ball 15, the diameter of the steel ball 15 is larger than the opening aperture at the upper part of the mounting hole 18, when in use, the steel ball 15 can protrude out of the top of the mounting hole 18 under the pushing of the spring 14, is in contact with the taper blind hole 21 arranged at the bottom of the rotatable bearing seat 16 and can rotationally position the rotatable bearing seat 16 It should be noted that, in order to ensure the rotation precision of the rotatable bearing seat 16, the number and the graduation of the tapered blind holes 21 at the bottom of the rotatable bearing seat 16 are identical to those of the holes to be processed on the workpiece to be processed, and in order to facilitate the rotation adjustment of the rotatable bearing seat 16, the rotatable bearing seat 16 is controlled by the thickness of the end face of the three-step boss on the fixed shaft 3, and also needs to ensure the small clearance fit with the upper end face of the fixed bearing seat 8 (that is, the thickness of the maximum diameter step (the three-step boss 24) of the fixed shaft 3 is used to control the lower end face of the movable bearing seat 16 and the upper end face of the fixed bearing seat 8, so that a small clearance of 0.1-0.2mm is formed between the lower end face of the movable bearing seat 16 and the upper end face of the fixed bearing seat 8, which is beneficial for the rotation of the movable bearing seat 16).

The machining process of the high-efficiency machining device for the holes in the spoke grooves of the disc parts comprises the following steps: s1, roughly turning and forming each part drawing of the porous high-efficiency machining device according to the utility model, and reserving finish machining allowance for each matching surface during machining;

s5, assembling each qualified and relevant part strictly according to the requirements of an assembly drawing, after the assembly is completed, detecting whether the rotatable bearing seat rotates flexibly and the indexing positioning (the contact of a steel ball in an elastic positioning assembly to a taper blind hole 21 at the bottom of the rotatable bearing seat 16) is reliable, after the abnormity is verified, installing a part 4 to be processed, fastening the part 4 to be processed on a fixed shaft 3 of the porous high-efficiency processing device by utilizing an opening pad compression nut 1, a fixed shaft thread part and an opening pad 2, and detecting whether the rotatable bearing seat 16 rotates flexibly and the indexing positioning is reliable again;

s6, after all the procedures are completed and no abnormity is detected finally, the porous high-efficiency processing device can be connected with a machine tool through the processing device pressing component I and the processing device pressing component II, before connection, the center of a main shaft of the drilling processing equipment is overlapped with the center of the working table X, Y axis direction of the drilling processing equipment and is fastened and locked, the rectangular positioning block arranged at the bottom of the fixed bearing seat 8 is matched with the T-shaped groove on the working table of the drilling processing equipment to play a role in Y-direction positioning, after the center of the porous high-efficiency processing device is overlapped with the center of the main shaft of the drilling processing equipment, the center of a porous to be processed is deviated along the X-axis direction by half of the center distance of the porous to be processed, and the porous high-efficiency processing device can be fastened and fixed with the machine tool through the processing device pressing component I and the processing device pressing component II by T-shaped bolts.

The working principle and the working process of the utility model during the concrete work are that the steel ball 15 sealed and stored by the plug 13 in the fixed bearing seat 8 can move up and down in the mounting hole 18 under the action of the spring 14, when the steel ball 15 pushes the top of the lower protruding mounting hole 18 under the elastic force of the spring 14, the steel ball 15 contacts with the taper blind hole 21 at the bottom of the rotatable bearing seat 16, the indexing positioning of the rotatable bearing seat 16 can be realized, when the steel ball is specifically processed and used, the number and the indexing of the taper blind holes 21 at the bottom of the rotatable bearing seat 16 are consistent with the number and the indexing of the holes to be processed on the part 4 to be processed, when a group of porous numbers of the part 4 to be processed are exchanged, only the number of the taper blind holes 21 at the bottom of the rotatable bearing seat 16 is required to be changed to be consistent with the porous number of the part 4 to be processed, the radial positioning sleeve 5 of the workpiece and the size of the positioning surface (referring to the positioning support table 23 on the rotatable bearing seat 16) are changed, in whole porous course of working, only need to treat that processing part 4 adorns in the timing is correct the utility model discloses an on the high-efficient porous (drilling) processingequipment, make work piece radial positioning cover 5 and rotatable bearing frame 16 locating surface play the positioning action, fastening opening pad gland nut 1, compress tightly through opening pad 2 and treat processing part 4, begin the drilling processing and treat the first hole on the processing part 4, after accomplishing first hole drilling processing, manual rotatory rotatable bearing frame 16, until location steel ball 15 under the spring 14 effect, in the adjacent tapering blind hole 21 of rotatable bearing frame 16 bottom is gone into in the bullet, reach the location and stop the effect and begin the drilling processing second hole, so on and end porous processing, then not hard up opening pad gland nut 1 slightly, take off opening pad 2, lift the work piece and accomplish the processing of part promptly. To sum up, the utility model discloses a having solved present a set of a plurality of lightening holes or fabrication hole to dish class part man-hour, the machining efficiency who exists is low, intensity of labour is big and need drop into professional equipment or the big a great deal of problem of equipment input, moreover, the utility model has the advantages of simple structure, easy and simple to handle, loading and unloading work piece are convenient, machining efficiency is moderate, and equipment input is minimum, processingquality is stable, has satisfied producer's user demand. The above-mentioned embodiments are merely preferred embodiments of the present invention, but not limiting the scope of the present invention, and can also be used in other different fields and products with different structures, no matter how large the center distance is, how many the holes are, and how large the size is, so that all equivalent changes or modifications made according to the structure, features and principles described in the patent scope of the present invention should be included in the application of the present invention.

Claims

1. A disc part spoke groove inner porous high-efficiency processing device is characterized by comprising an opening pad pressing component, a fixed shaft, a workpiece radial positioning sleeve, a single-row tapered roller bearing I, a second single-row tapered roller bearing II, a fixed bearing seat, a rotatable bearing seat, a processing device pressing component I, a processing device pressing component II and an elastic positioning component, wherein the fixed bearing seat is arranged on a workbench of an external machine tool, the processing device pressing component I and the processing device pressing component II are arranged at two side parts of the fixed bearing seat and press the fixed bearing seat on the workbench of the external machine tool, a stepped hole I is formed in the fixed bearing seat, the outer diameter of the single-row tapered roller bearing I is arranged in the stepped hole I and is in transition fit with the stepped hole I for installing and supporting the lower part of the fixed shaft of the rotatable bearing seat, the three-stage tapered roller bearing is arranged at the inner diameter part of a single-row tapered roller bearing I and is connected with the inner diameter of the single-row tapered roller bearing I in an interference fit manner, a three-stage boss is processed on a fixed shaft, a rotatable bearing seat is arranged at the upper end part of the three-stage boss processed on the fixed shaft and is in contact with the fixed shaft in a radial sliding fit manner, a stepped hole II is processed in the rotatable bearing seat, the outer diameter of the single-row tapered roller bearing II is arranged in the stepped hole II and is in transition fit with the stepped hole II, a workpiece radial positioning sleeve for supporting a workpiece is arranged at the inner diameter part of the single-row tapered roller bearing II and is connected with the inner diameter of the single-row tapered roller bearing II in an interference fit manner, three notches are milled at the upper end of the rotatable bearing seat, scrap iron is convenient to clear, three positioning support tables are reserved for supporting the workpiece, and a step is processed at the upper part of the workpiece radial positioning sleeve, a gap is reserved between the step and the workpiece during assembly, an opening pad compressing assembly is fixedly mounted on the upper portion of the fixed shaft and can compress the workpiece on the three positioning support tables of the rotatable bearing seat, a mounting hole is machined in the fixed bearing seat, an elastic positioning assembly is mounted in the mounting hole, a taper blind hole is formed in the bottom of the rotatable bearing seat, the top of the elastic positioning assembly is in contact with the taper blind hole formed in the bottom of the rotatable bearing seat, and the top of the elastic positioning assembly is rotationally positioned on the rotatable bearing seat.

2. The efficient machining device for multiple holes in spoke grooves of disc parts according to claim 1, wherein the number and the graduation of the tapered blind holes at the bottom of the rotatable bearing seat are consistent with those of the holes to be machined in a workpiece to be machined.

3. The efficient machining device for the multiple holes in the spoke groove of the disc part as claimed in claim 1, wherein N mounting holes for mounting the elastic positioning assembly are formed in the fixed bearing seat, and the elastic positioning assembly can be arranged in each mounting hole.

4. The device for efficiently machining the multiple holes in the spoke groove of the disc part according to claim 1, wherein the elastic positioning assembly comprises a plug, a spring and a steel ball, the steel ball is mounted at the top of the spring and is in contact with the spring, the spring is arranged at the upper part of the plug and is in contact with the plug, the steel ball, the spring and the plug are sequentially mounted in a mounting hole in a fixed bearing seat from top to bottom, internal threads are machined at the lower part in the mounting hole, external threads are machined at the outer part of the plug, the plug is mounted in the mounting hole and is connected with the internal threads formed in the mounting hole in a threaded fit manner, and in order to limit the steel ball, the diameter of an opening at the top of the mounting hole is smaller than the diameter of the steel ball.

5. The efficient machining device for multiple holes in spoke grooves of disc parts according to claim 1, wherein a rectangular positioning block is arranged at the bottom of the fixed bearing seat and matched with a T-shaped groove in a workbench of a vertical bench drill or a vertical drilling machine, and is used for positioning the bottom of the fixed bearing seat in the Y direction.

6. The device for efficiently machining the multiple holes in the spoke groove of the disc part according to claim 1, wherein the opening pad pressing assembly comprises an opening pad pressing nut, a fixed shaft threaded part and an opening pad, a through hole I is machined in the center of the opening pad, the diameter of the through hole I is larger than that of the fixed shaft threaded part, the fixed shaft threaded part penetrates through the through hole I in the opening pad, and the opening pad pressing nut 1 is installed on the upper part of the fixed shaft and is connected with the fixed shaft threaded part in a matched mode.

7. The disc part spoke groove porous high-efficiency machining device according to claim 1, characterized in that the machining device pressing component I and the machining device pressing component II are of the same structure and mainly comprise a pressing plate support plate, a T-shaped bolt, a machining device pressing nut and a machining device pressing plate, a through hole II is machined in the center of the machining device pressing plate, the diameter of the through hole II is larger than that of the T-shaped bolt, the T-shaped bolt penetrates through the through hole II formed in the machining device pressing plate, the bottom of the pressing plate support plate is arranged on a workbench of an external machine tool, the upper portion of the pressing plate support plate is arranged at the bottom of the machining device pressing plate and connected with the machining device pressing plate, and the machining device pressing nut is arranged on the upper portion of the T-shaped bolt and connected with the T-shaped bolt through thread matching.

8. The efficient machining device for the multiple holes in the spoke grooves of the disc part as claimed in claim 1, wherein an annular rubber chip blocking plate is arranged on the upper end face of the single-row tapered roller bearing II, and the annular rubber chip blocking plate is in contact with the upper end face of the single-row tapered roller bearing II, so that drill chips can be prevented from entering the inside of the single-row tapered roller bearing II in use.