Starter air inlet shell drilling machining center and machining method thereof

Abstract

The starter air inlet shell drilling machining center comprises a machine base, a drilling device and a clamp, the clamp comprises a rotating table, the rotating table is driven by a motor and rotationally installed on the machine base, and a plurality of through grooves are formed in the rotating table; the supporting tables are controlled by a lifting control device and installed in the through grooves in a lifting mode. The vertical plates are symmetrically arranged at the two ends of the surface of each supporting table, and sliding grooves are formed in the bottoms of the vertical plates. The clamping plates are slidably mounted in the sliding grooves respectively, the bottoms of the outer ends of the clamping plates are inclined, triangular grooves are formed in the middles of the clamping plates, and the outer end faces of the triangular grooves are inclined upwards; the reset pieces are arranged on the table top of the rotating table, located on the two sides of the through grooves respectively and correspond to the clamping plates, and when the lifting device controls the supporting table to ascend or descend, the outer ends of the reset pieces / the clamping plates are in sliding fit with the inner circumferential walls of the corresponding triangular grooves / the corresponding through grooves, and the clamping plates are controlled to slide towards the outside or the inside of the supporting table. Automatic clamping of the air inlet shell of the starter is achieved.

Description

Technical Field

[0001] The present invention relates to the field of automotive parts manufacturing, and particularly to a drilling machining center for a starter air intake housing. Background Art

[0002] The drilling machining center for a starter air intake housing is an advanced device specifically designed for drilling the starter air intake housing, playing a key role in related fields such as automotive parts manufacturing.

[0003] It is mainly applied to automotive engine manufacturing enterprises, automotive parts manufacturers, and related machining enterprises. In automotive engine production, the starter air intake housing is one of the key components. The drilling machining center for the starter air intake housing can provide high-precision and high-efficiency drilling machining services to ensure product quality and production progress. At the same time, for some enterprises that need to customize the production of starter air intake housings, this device can also meet the personalized needs of different customers with its flexible machining ability.

[0004] Currently, it is necessary to manually operate the fixture on the machine table to clamp and fix the starter air intake housing, resulting in cumbersome operation steps, greatly reducing the machining efficiency. Moreover, the existing drilling machining center can only drill one hole at a time, and there are at least two mounting holes on the starter air intake housing, so multiple positionings are required, which not only causes low machining efficiency but also causes the superposition of errors during multiple clampings, ultimately resulting in a large error. Summary of the Invention

[0005] The present invention aims to solve one of the technical problems existing in the prior art.

[0006] The present application provides a drilling machining center for a starter air intake housing, including a machine base, a drilling device, and a fixture. The fixture includes:

[0007] A rotating table, which is driven by a motor and rotatably installed on the machine base, and is provided with a plurality of through grooves thereon;

[0008] A plurality of supporting tables, which are respectively controlled by a lifting control device and are respectively liftably installed in the respective through grooves;

[0009] A plurality of vertical plates, which are respectively symmetrically arranged at both ends of the surfaces of the respective supporting tables and are provided with sliding grooves at the bottoms;

[0010] A plurality of clamping plates, which are respectively slidably installed in the respective sliding grooves, the outer ends of the bottoms are inclined, and the middles are respectively provided with triangular grooves, and the outer end surfaces of the respective triangular grooves are inclined upward;

[0011] A plurality of resetting members, which are arranged on the tabletop of the rotating table, are respectively located on both sides of the respective through grooves and correspond to the respective clamping plates;

[0012] When the lifting device controls the platform to rise / fall, each reset member / the outer end of each clamping plate slides in cooperation with the inner peripheral wall of the corresponding triangular groove / corresponding through groove, controlling each clamping plate to slide outward / inward with respect to the platform.

[0013] The reset member includes:

[0014] A top groove, which is arranged on the top surface of the vertical plate;

[0015] A cross plate, which can extend into the top groove, one end is fixedly arranged on the top surface of the rotating platform through a support plate, and the bottom of the other end is fixedly provided with a reset column that can slide in cooperation with the outer side surface of the triangular groove.

[0016] The cross sections of the platform and the through groove are both circular, and the top groove, the cross plate, the support plate and the reset column are all arc-shaped and concentric with the platform.

[0017] The lifting control device includes:

[0018] An arc groove, which is arranged around the inner cavity of the machine base, includes a sunken section and a rising section connected end to end, and the rising section is higher than the sunken section;

[0019] A number of connecting rods, which are respectively fixedly arranged on the bottom surface of each platform, and the lower ends are fixedly provided with transmission columns that slide in cooperation with the arc groove.

[0020] It further includes:

[0021] A number of flipping control grooves, which are respectively arranged around the circumferential wall of each through groove, include a number of L grooves composed of vertical sections, inclined sections and inclined guide surfaces. The top ends of the vertical sections of each L groove are open, one end of the inclined section is connected to the lower end of the vertical section, and the other end is connected to the middle of the vertical section of the adjacent L groove;

[0022] A number of transmission sliders, which are respectively arranged at intervals on the circumferential wall of each platform and slide in cooperation with the corresponding L grooves;

[0023] A reciprocating lifting mechanism, which cooperates with the transmission column of the corresponding drilling device to control the lifting of the corresponding platform;

[0024] Among them, each inclined guide surface is respectively arranged outside the corner of the corresponding L groove.

[0025] It further includes:

[0026] The number of L grooves in the flipping control groove depends on the number of mounting holes on the intake housing of the starter.

[0027] The reciprocating lifting mechanism includes:

[0028] A lifting groove, which is vertically arranged in the inner cavity of the machine base;

[0029] A lifting block, which is installed to lift and slide in the lifting groove, and a connecting rod is hinged to the bottom;

[0030] A cylinder, which is horizontally fixed at the bottom of the inner cavity of the machine base, and its piston rod is hinged to the other end of the connecting rod;

[0031] Among them, a part of the sinking section is arranged on the inner side wall of the lifting block facing inwards.

[0032] It also includes:

[0033] Several circular ring sleeves are respectively fixed on the bottom surface of each support table, and the outer peripheral wall is slidably matched with the inner peripheral wall of the corresponding through groove.

[0034] At the same time, a processing method of a drilling machining center for a starter intake housing is disclosed, including the following steps:

[0035] S1. Place the starter intake housing on the support table, the motor drives the rotating table to rotate, the corresponding transmission column enters the sinking section, the support table descends, a pair of clamping plates close, and the transmission slider moves to the middle of the vertical section to complete the fixation of the starter intake housing;

[0036] S2. Wait until the fixed starter intake housing moves below the drilling device, and the motor stops running;

[0037] S3. The drilling device operates to perform the first drilling on the starter intake housing, and after completion, enter S4;

[0038] S4. The cylinder operates, the piston rod first retracts and then extends, pulls the lifting block, the connecting rod and the support table to first descend and then rise through the connecting rod, the transmission slider first descends from the middle of the vertical section of the L groove to the bottom end of the inclined guide surface, and then rises, slides from the inclined section to the middle of the vertical section of the adjacent L groove, so that the position of another place on the starter intake housing that needs to be drilled is aligned with the drilling device;

[0039] S5. Repeat S3 - S4 until the drilling operation of all the mounting holes on the starter intake housing is completed, and enter S6;

[0040] S6. The motor drives the rotating table to rotate, so that the completed-drilling starter intake housing moves away from the drilling device, the corresponding transmission slider enters the rising section, the support table and a pair of clamping plates rise, and the corresponding reset columns extend into the triangular grooves, and a pair of clamping plates separate;

[0041] S7. Take out the completed-drilling starter intake housing from the support table and return to S1.

[0042] The beneficial effects of the present invention are as follows:

[0043] 1. Through the settings of the rotating table, several support tables, several vertical plates, several overtime, several triangular grooves, several reset parts, arc grooves, several connecting rods and several transmission columns, the starter intake housing moving towards the drilling device is automatically fixed, and the fixation of the starter intake housing leaving the drilling post is automatically released, without manual operation, greatly reducing the labor intensity of workers and improving work efficiency;

[0044] 2. Through the arrangement of a flipping control groove composed of a number of L-grooves each including an upright section, an inclined section, and an inclined guide surface, a number of transmission sliders, a lifting groove, a lifting block, a cylinder, and a connecting rod, each time the piston rod of the cylinder makes a telescopic movement, the support table together with the starter intake housing fixed thereon can be rotated by a specified angle. After repeating this multiple times, the positions on the starter intake housing that need to be drilled can pass through the drilling device in sequence, eliminating the need for secondary positioning, reducing error accumulation, and improving the drilling accuracy of each mounting hole. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a top view of the drilling and processing center for the starter intake housing in the embodiment of the present application;

[0046] Figure 2 is Figure 1 a schematic cross-sectional structure diagram in the A-A direction in

[0047] Figure 3 is Figure 2 a schematic cross-sectional structure diagram in the B-B direction in

[0048] Figure 4 It is a developed view of the inner peripheral wall of the through groove in the embodiment of the present application;

[0049] Figure 5 is Figure 2 a partial enlarged schematic structure diagram at C in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0050] Next, the technical solutions in the embodiments of the present application will be clearly described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are some, rather than all, of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art belong to the scope of protection of the present application.

[0051] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, rather than to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present application can be implemented in an order different from those illustrated or described herein, and the objects distinguished by "first", "second", etc. are generally of the same type, and the number of objects is not limited. For example, the first object can be one or multiple. In addition, "and / or" in the specification and claims means at least one of the connected objects, and the character " / " generally indicates an "or" relationship between the associated objects before and after.

[0052] Next, in conjunction with the accompanying drawings, the starter intake housing drilling and processing center and its processing method provided in the embodiments of the present application will be described in detail through specific embodiments and their application scenarios.

[0053] Example 1:

[0054] As Figures 1 to 5 shown, an embodiment of the present application provides a drilling machining center for a starter intake housing, which includes a machine base 1, a drilling device 2, and a fixture 3. The fixture 3 includes a rotating table 31, which is driven by a motor and rotatably installed on the machine base 1, and is provided with a plurality of through grooves 32 thereon; a plurality of support tables 33, which are controlled by a lifting control device 34 and are respectively liftably installed in each through groove 32; a plurality of vertical plates 35, which are symmetrically arranged at both ends of the surface of each support table 33, and are provided with sliding grooves 36 at the bottom; a plurality of clamping plates 37, which are respectively slidably installed in each sliding groove 36, the outer ends of the bottoms are inclined, and the middle parts are each provided with a triangular groove 38, and the outer end surfaces of each triangular groove 38 are inclined upward; a plurality of reset members 39, which are arranged on the table surface of the rotating table 31, are respectively located on both sides of each through groove 32, corresponding to each clamping plate 37. When the lifting device controls the support table 33 to rise / fall, each reset member 39 / the outer end of each clamping plate 37 slides in cooperation with the corresponding triangular groove 38 / the inner peripheral wall of the corresponding through groove 32, and controls each clamping plate 37 to slide outward / inward of the support table 33.

[0055] In this embodiment of the present application, due to the above structure, the starter intake housing that has not been drilled is placed on the raised support table 33, and then the motor drives the rotating table 31 to rotate. The lifting control device 34 simultaneously controls the support table 33 carrying the starter intake housing that has not been drilled to descend. As the support table 33 descends, each clamping plate 37 enters the through groove 32, and the outer inclined surface contacts the top of the through groove 32 and is pushed inward of the support table 33 by the peripheral wall of the through groove 32 to clamp the starter intake housing that has not been drilled. When the starter intake housing that has not been drilled moves to below the drilling device 2, the motor stops running, and the drilling device 2 operates to perform drilling operations on the starter intake housing that has not been drilled. After the drilling operation is completed, the motor drives the rotating table 31 to rotate, and the lifting control device 34 simultaneously controls the support table 33 carrying the starter intake housing that has not been drilled to rise. As the support table 33 rises, each clamping plate 37 gradually disengages from the through groove 32 and cooperates with the reset member 39 until the support table 33 rises to the highest position, and each clamping plate 37 completely releases the clamping of the starter intake housing. Then the worker can remove the starter intake housing that has completed the drilling operation from the support plate and replace it with a new starter intake housing that has not been drilled on this support plate.

[0056] Example 2:

[0057] As Figure 2 and Figure 5As shown, in this embodiment, in addition to including the structural features of the foregoing embodiment, the reset member 39 includes a top groove 391 provided on the top surface of the vertical plate 35; a cross plate 392 that can extend into the top groove 391, one end of which is fixedly provided on the top surface of the rotating table 31 through a support plate 393, and the bottom of the other end is fixedly provided with a reset post 394 that can slide and cooperate with the outer side surface of the outer end of the triangular groove 38.

[0058] Preferably, the cross sections of the support table 33 and the through groove 32 are both circular, and the top groove 391, the cross plate 392, the support plate 393, and the reset post 394 are all arc-shaped and concentric with the support table 33.

[0059] In this embodiment of the present application, due to the adoption of the above structure, the positions of a pair of cross plates 392 and a pair of reset posts 394 remain unchanged. When the support table 33 rises, the corresponding pair of clamping plates 37 and a pair of vertical plates 35 also rise simultaneously. Each reset post 394 gradually inserts into the corresponding side groove and triangular groove 38 and abuts against the inclined surface located at the outer end of the corresponding triangular groove 38. As the support table 33 continues to rise, each clamping plate 37 approaches the corresponding cross plate 392, and each reset post 394 further penetrates into the corresponding triangular groove 38. In this way, it can cooperate with the corresponding triangular groove 38 to push the corresponding clamping plate 37 outward from the corresponding support table 33 to release the fixation of the starter intake housing.

[0060] It should be noted that since the bottom of the outer end of each clamping plate 37 is provided with an inclined surface, and each clamping plate 37 only starts to slide outward from the corresponding support table 33 when it is close to the upper surface of the rotating table 31. Due to the existence of the aforementioned inclined surface, each clamping plate 37 will not interfere with the peripheral wall of the through groove 32 during the outward sliding process.

[0061] Embodiment 3:

[0062] As Figures 2 to 5 shown, in this embodiment, in addition to including the structural features of the foregoing embodiment, the lifting control device 34 includes an arc groove that is circumferentially provided in the inner cavity of the machine base 1, including a descending section 341 and an ascending section 342 that are connected end to end, and the ascending section 342 is higher than the descending section 341; a plurality of connecting rods 343 are respectively fixedly provided on the bottom surface of each support table 33, and the lower ends are fixedly provided with transmission posts 344 that slide and cooperate with the arc groove.

[0063] Furthermore, it also includes a plurality of flip control grooves 4, which are respectively arranged on the peripheral walls of each through groove 32, including a plurality of L-grooves composed of an upright section 41, an inclined section 42 and an inclined guide surface 43. The top end of the upright section 41 of each L-groove is open, one end of the inclined section 42 is connected to the lower end of the upright section 41, and the other end is connected to the middle part of the upright section 41 of the adjacent L-groove; a plurality of transmission sliders 44 are respectively arranged at intervals on the peripheral walls of each support 33 and slidably cooperate with the corresponding L-grooves; a reciprocating lifting mechanism 5, which cooperates with the transmission column 344 of the corresponding drilling device 2, and is used to control the lifting and lowering of the corresponding support 33, and each inclined guide surface 43 is respectively arranged on the outside of the corner of the corresponding L-groove.

[0064] Furthermore, the number of L slots in the flip control slot 4 depends on the number of mounting holes on the starter air intake housing.

[0065] In this embodiment of the present application, due to the adoption of the above-mentioned structure, as the rotating table 31 rotates, each transmission column 344 on each connecting rod 343 slides in the ascending section 342 and the descending section. When sliding to the ascending section 342, the corresponding connecting rod 343 and the support table 33 rise. At this time, each transmission slider 44 slides to the top of the corresponding L-groove upright section 41. In this process, each reset column 394 extends into the corresponding triangular groove 38, so that the corresponding pair of clamps 37 slide outward of the support table 33. When each transmission column 344 When sliding to the sinking section 341, each connecting rod 343 pulls the corresponding support platform 33 down. At this time, each clamping plate 37 completely enters the corresponding through groove 32 to complete the clamping and fixing of the starter intake shell. Each transmission slider 44 is located in the middle of the corresponding L-groove upright section 41, and the rising section 342 is away from the drilling device 2. The reciprocating lifting mechanism 5 is located below the drilling device 2. When it is necessary to rotate the starter intake shell below the drilling device 2, the reciprocating lifting mechanism 5 cooperates with the transmission column 344 of the corresponding drilling device 2 to control the sinking section. A part of the sinking section 341 is lowered together with the transmission column 344, so that each transmission slide block 44 slides from the middle of the corresponding upright section 41 to the inclined section 42, and then slides along the inclined guide surface 43 to the lower end of the inclined guide surface 43. Then, the reciprocating lifting mechanism 5 controls a part of the sinking section 341 together with the transmission column 344 located therein to rise together, so that the transmission slide block 44 cooperates with the top surface of the inclined section 42 and slides toward the other end of the inclined section 42 until it enters the middle of the upright section 41 connected to the other end of the inclined section 42. The inclined section 42 is a spiral It is arranged on the inner peripheral wall of the through groove 32, so in this process, the support platform 33 will rotate while rising, and when each transmission slider 44 enters the middle part of another upright section 41, the reciprocating lifting mechanism 5 also stops running, and when running again, it controls each transmission slider 44 to move downward to ensure that each clamping plate 37 will not separate from the corresponding through groove 32, and can maintain the clamping of the starter air intake shell while completing the rotation of the starter air intake shell, so that the position of another hole on the starter air intake shell that needs to be drilled is adjusted to be directly below the drill bit of the drilling device 2.

[0066] It should be noted that the positions on the starter air intake housing that can be adapted to this application and need to be drilled can be on the edge of the same circle, and the center of this circle is the same as the center of the support table 33. According to the number of positions to be drilled on the starter air intake housing that needs to be drilled, a corresponding number of L grooves are set. The length of the inclined section 42 of the corresponding L groove can be adjusted according to the angle of the central angle between each drilling position, so that the angle of the central angle formed by the two ends of the corresponding inclined section 42 with the axis of the through groove 32 is equal to it. In this way, every time the support table 33 is lifted and lowered, the next position on the starter air intake housing that needs to be drilled can be rotated to directly below the drill bit of the drilling device 2.

[0067] Embodiment 4:

[0068] As Figures 1 to 5 shown, in this embodiment, in addition to including the structural features of the foregoing embodiment, the reciprocating lifting mechanism 5 includes a lifting groove 51, which is vertically arranged in the inner cavity of the machine base 1; a lifting block 52, which is installed in the lifting groove 51 in a lifting and sliding manner, and a connecting rod 53 is hinged to the bottom; a cylinder 54, which is horizontally fixed at the bottom of the inner cavity of the machine base 1, and its piston rod is hinged to the other end of the connecting rod 53. A part of the sinking section 341 is arranged on the inner side wall of the lifting block 52 facing inward.

[0069] Furthermore, a plurality of ring sleeves 6 are also included, which are respectively fixed on the bottom surfaces of the respective support tables 33, and the outer peripheral wall is slidably matched with the inner peripheral wall of the corresponding through groove 32.

[0070] At the same time, a processing method for a drilling and processing center of a starter air intake housing is disclosed, including the following steps:

[0071] S1. Place the starter air intake housing on the support table 33, the motor drives the rotating table 31 to rotate, the corresponding transmission column 344 enters the sinking section 341, the support table 33 descends, and a pair of clamping plates 37 close, and the transmission slider 44 moves to the middle of the upright section 41 to complete the fixation of the starter air intake housing;

[0072] S2. Wait until the fixed starter air intake housing moves below the drilling device 2, and the motor stops running;

[0073] S3. The drilling device 2 operates to perform the first drilling on the starter air intake housing, and after completion, enter S4;

[0074] S4. The cylinder 54 operates, the piston rod first retracts and then extends, and the lifting block 52, the connecting rod 343 and the support table 33 are pulled to first descend and then ascend through the connecting rod 53. The transmission slider 44 first descends from the middle of the upright section 41 of the L groove to the bottom end of the inclined guide surface 43, and then ascends, and slides from the inclined section 42 to the upright section 41 of the adjacent L groove, so that another position on the starter air intake housing that needs to be drilled is aligned with the drilling device 2;

[0075] S5. Repeat S3 - S4 until the drilling operations for all the mounting holes on the starter air intake housing are completed, then proceed to S6;

[0076] S6. The motor drives the rotating table 31 to rotate, moving the starter air intake housing with completed drilling away from the drilling device 2. The corresponding transmission slider 44 enters the ascending section 342, the support table 33 and a pair of clamping plates 37 rise, and the corresponding reset posts 394 extend into the triangular grooves 38, causing the pair of clamping plates 37 to separate;

[0077] S7. Remove the starter air intake housing with completed drilling from the support table 33 and return to S1.

[0078] In this embodiment of the present application, due to the adoption of the above - mentioned structure, when it is necessary to make the transmission column 344 corresponding to the drilling device 2 reciprocate up and down, the air cylinder 54 acts. Its piston rod first retracts and then extends, pulling the lifting block 52 to descend and then rise in the lifting groove 51 through the connecting rod 53. When the lifting block 52 rises to the highest point, it has a sliding friction with the bottom surface of the rotating table 31. Restricted by the rotating table 31, it cannot rise further, ensuring that when each transmission slider 44 is below the drilling device 2, it will not enter the upper part of the corresponding vertical section 41, enabling each clamping plate 37 to maintain the clamping of the starter air intake housing. The setting of each ring sleeve 6 can improve the stability of the lifting of each support table 33 in the corresponding through - slot 32.

[0079] It should be noted that in this text, the term "comprising", "including" or any other variant thereof is intended to cover non - exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not explicitly listed, or elements inherent to such a process, method, article or device. Without further limitation, an element defined by the statement "comprising one..." does not exclude the existence of additional identical elements in the process, method, article or device including such an element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed. It may also include performing functions in a substantially simultaneous manner or in the reverse order according to the functions involved. For example, the described methods may be performed in an order different from that described, and various steps may be added, omitted, or combined. Additionally, the features described with reference to certain examples may be combined in other examples.

[0080] The embodiments of the present application have been described above in conjunction with the accompanying drawings. However, the present application is not limited to the above - described specific embodiments. The above - described specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present application, those of ordinary skill in the art can also make many forms without departing from the purpose of the present application and the scope protected by the claims, and all of them fall within the protection scope of the present application.

Claims

1. A drilling machining center for a starter intake housing, comprising a machine base, a drilling device and a fixture, characterized in that, The fixture includes: A rotating table, which is driven by a motor and rotatably installed on the machine base, and is provided with a plurality of through grooves thereon; A plurality of supporting tables, which are controlled by a lifting control device and are respectively liftably installed in each of the through grooves; A plurality of vertical plates, which are symmetrically arranged at both ends of the surface of each supporting table respectively, and are provided with sliding grooves at the bottoms; A plurality of clamping plates, which are respectively slidably installed in each of the sliding grooves, the outer ends of the bottoms are inclined, and the middles are each provided with a triangular groove, and the outer end faces of each triangular groove are inclined upward; A plurality of reset members, which are arranged on the table surface of the rotating table, are respectively located on both sides of each through groove, and correspond to each clamping plate; Wherein, when the lifting device controls the supporting table to rise / fall, each reset member / the outer end of each clamping plate slides in cooperation with the corresponding triangular groove / the inner peripheral wall of the corresponding through groove, and controls each clamping plate to slide outward / inward of the supporting table.

2. The drilling machining center for the intake housing of a starter motor according to claim 1, characterized in that, The reset member includes: A top groove, which is arranged on the top surface of the vertical plate; A cross plate, which can extend into the top groove, one end is fixedly arranged on the top surface of the rotating table through a support plate, and the other end is fixedly provided with a reset column that can slide in cooperation with the outer end side surface of the triangular groove.

3. The drilling machining center for the intake housing of a starter according to claim 2, wherein: The cross sections of the supporting table and the through groove are both circular, and the top groove, the cross plate, the support plate and the reset column are all arc-shaped and concentric with the supporting table.

4. The drilling and machining center for the intake housing of a starter motor according to claim 1, characterized in that, The lifting control device includes: An arc groove, which is arranged around the inner cavity of the machine base, includes a sinking section and a rising section connected end to end, and the rising section is higher than the sinking section; A plurality of connecting rods, which are respectively fixedly arranged on the bottom surface of each supporting table, and the lower ends are fixedly provided with transmission columns that slide in cooperation with the arc groove.

5. A drilling machining center for a starter air intake housing according to claim 4, characterized in that, It further includes: A plurality of flipping control grooves, which are respectively arranged around the peripheral walls of each through groove, and include a plurality of L grooves composed of a vertical section, an inclined section and an inclined guide surface, the top ends of the vertical sections of each L groove are open, one end of the inclined section is communicated with the lower end of the vertical section, and the other end is communicated with the middle of the vertical section of the adjacent L groove; A plurality of transmission sliders, which are respectively arranged at intervals on the peripheral walls of each supporting table and slide in cooperation with the corresponding L grooves; A reciprocating lifting mechanism, which cooperates with the transmission column of the corresponding drilling device to control the lifting of the corresponding supporting table; Wherein, each of the inclined guide surfaces is respectively arranged outside the corner of the corresponding L groove.

6. The drilling machining center for the intake housing of a starter motor according to claim 5, characterized in that, It further includes: The number of L grooves in the flipping control groove depends on the number of mounting holes on the intake housing of the starter.

7. A drilling machining center for a starter air intake housing according to claim 5, characterized in that The reciprocating lifting mechanism includes: A lifting groove, which is vertically arranged in the inner cavity of the machine base; A lifting block, which is liftably slidably installed in the lifting groove, and a connecting rod is hinged to the bottom; A cylinder, which is horizontally fixedly arranged at the bottom of the inner cavity of the machine base, and its piston rod is hinged to the other end of the connecting rod; Wherein, a part of the sinking section is arranged on the inner side wall of the lifting block facing inward.

8. The drilling machining center for a starter air intake housing according to claim 1, characterized in that, It further includes: A plurality of circular ring sleeves, which are respectively fixedly arranged on the bottom surface of each supporting table, and the outer peripheral wall slides in cooperation with the inner peripheral wall of the corresponding through groove.

9. The machining method of a starter intake housing drilling and machining center according to claim 7, characterized in that, It includes the following steps: S1. Place the intake housing of the starter on the supporting table, the motor drives the rotating table to rotate, the corresponding transmission column enters the sinking section, the supporting table descends, a pair of clamping plates close, and the transmission slider moves to the middle of the vertical section to complete the fixation of the intake housing of the starter; S2. Wait until the fixed intake housing of the starter moves below the drilling device, and the motor stops running; S3. The drilling device operates to drill the first hole in the starter air intake housing, and then proceeds to S4 after completion. S4. The cylinder operates. The piston rod first retracts and then extends, pulling the lifting block, connecting rod, and support platform to first lower and then rise through the connecting rod. The transmission slider first descends from the middle of the vertical section of the L groove to the bottom of the inclined plane, and then rises, sliding from the inclined section to the vertical section of the adjacent L groove, aligning the position of the starter air intake housing that needs to be drilled at another location with the drilling device. S5. Repeat S3 - S4 until all the installation holes on the starter air intake housing are drilled, and then proceed to S6. S6. The motor drives the rotating table to rotate, moving the drilled starter air intake housing away from the drilling device. The corresponding transmission slider enters the ascending section, the support platform and a pair of clamping plates rise, and the corresponding reset posts extend into the triangular grooves, separating the pair of clamping plates. S7. Remove the drilled starter air intake housing from the support platform and return to S1.

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