CN217475407U

CN217475407U - Automobile wheel hub bearing inner race boring grab

Info

Publication number: CN217475407U
Application number: CN202221288164.5U
Authority: CN
Inventors: 孙东周; 卜军磊; 夏小宝; 周剑
Original assignee: Zhejiang Xien Xituosi Technology Co ltd
Current assignee: Zhejiang Xien Xituosi Technology Co ltd
Priority date: 2022-05-26
Filing date: 2022-05-26
Publication date: 2022-09-23
Anticipated expiration: 2032-05-26

Abstract

The utility model relates to a bearing inner race anchor clamps field specifically discloses an automobile wheel hub bearing inner race boring grab, including the workstation, the top surface of workstation is provided with the bottom plate, and the top surface of bottom plate is provided with a plurality of bases, and the top of base is provided with the anchor clamps module, and the surface of anchor clamps module is provided with orientation module; the beneficial effects are that: the automobile hub bearing outer ring is placed on the fixture module, the piston shaft moves backwards when the handle is pulled, after a product to be processed is placed, the handle is loosened, the piston shaft resets under the action of a reset spring and enables the V-shaped groove to be matched with a reinforcing rib of the product to be processed, the automobile hub bearing outer ring passes through a round hole and a first cylindrical positioning surface on the fixture module, a first cylindrical positioning surface on the small end face and the fixture module or a second cylindrical positioning surface on the round hole and the fixture module, a second cylindrical positioning surface on the small end face and the fixture module or a third cylindrical positioning surface on the round hole and the fixture module, and the third cylindrical positioning surface on the small end face and the fixture module realizes positioning and matching.

Description

Automobile wheel hub bearing inner race boring grab

Technical Field

The utility model relates to a bearing inner race anchor clamps field specifically is an automobile wheel hub bearing inner race boring grab.

Background

The outer ring and the inner ring of the automobile hub bearing are two important parts of the automobile hub bearing, and the machining process of the automobile hub bearing outer ring comprises a process of drilling bolt holes or threaded holes.

In the prior art, during drilling, a corresponding clamp installed on a machine tool is generally used for clamping a part, so that the part is drilled, and the precision of a hole and the product quality are ensured. In actual production, the existing clamp generally uses a clamping jaw to clamp a product when the product is produced, the clamping jaw clamps the product through a base circle of the clamped product and completes positioning in one direction, and then the end face of the base circle of the product is contacted with a plane on the clamping jaw to complete positioning in the other direction.

However, the clamping and positioning points of the clamp are both provided on the jaws. Therefore, the product is easy to cause quality defects such as clamping damage, pressure damage and the like in the production process. When the product model is replaced every time, the clamping jaw needs to be disassembled and replaced by a new clamping jaw, and a new clamping surface and a new positioning surface are machined on the clamping jaw according to the clamped product. This results in troublesome adjustment and model change and long model change time.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automobile wheel hub bearing inner race boring grab to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an automobile wheel hub bearing inner race boring grab, automobile wheel hub bearing inner race boring grab includes:

the top surface of the worktable is provided with a bottom plate, the top surface of the bottom plate is provided with a plurality of bases, the top end of each base is provided with a clamp module, the surface of each clamp module is provided with a positioning module, the top surface of each clamp module is integrally formed with three cylindrical positioning surfaces, the top surface of each cylindrical positioning surface III is integrally formed with a cylindrical positioning surface II, the top surface of each cylindrical positioning surface II is integrally formed with a cylindrical positioning surface III, the top surface of each clamp module, the cylindrical positioning surface III, the cylindrical positioning surface II and the cylindrical positioning surface I are decreased in diameter from bottom to top, the top surface, the third cylindrical positioning surface, the second cylindrical positioning surface and the first cylindrical positioning surface of the clamp module form a third positioning plane, a second positioning plane and a first positioning plane from bottom to top, a second cylindrical boss and a fourth plane are integrally formed on the bottom surface of the clamp module, and a threaded hole and a bolt hole are formed in the surface of the clamp module;

the oil cylinder is arranged on the top surface of the bottom plate and comprises two groups of single-side oil cylinders and a plurality of double-side oil cylinders, the base is positioned between the two groups of oil cylinders, the double-side oil cylinders are positioned between two adjacent bases, single-side pressing plates are arranged at the top ends of the two groups of single-side oil cylinders, and double-side pressing plates are arranged on the top surfaces of the double-side oil cylinders; and

the automobile hub bearing outer ring is sleeved on the outer side of the clamp module, the positioning module is used for limiting the automobile hub bearing outer ring, and an oil pipe joint is arranged on the surface of the bottom plate.

Preferably, a first plane is integrally formed on the top surface of the base plate, a plurality of base mounting holes are formed in the surface of the first plane, a main oil path hole and an oil path hole are formed in the side wall of the base plate, the main oil path hole and the oil path hole are perpendicular and communicated, the oil pipe joint is mounted at the port of the main oil path hole, and a plurality of first threaded holes and second threaded holes are formed in the surface of the first plane.

Preferably, the top surface integrated into one piece of base has three bosses of evenly arranging, and the surface of boss is provided with the round hole, and the top surface of boss is provided with plane two, and the surface of plane two is provided with screw hole three, and a plurality of bolt holes one have been seted up on the surface of base, and bolt hole one is in between two adjacent bosses, and the bottom surface integrated into one piece of base has cylinder boss one and plane three.

Preferably, the positioning module includes the mount pad, and the upper portion sliding connection of mount pad has a piston seat, and the round hole one of piston seat is pegged graft and is had the uide bushing, the grafting piston axle of uide bushing round hole two, and the handle is connected to piston axle one end, and the body of rod outside cover of piston axle is equipped with reset spring, and the surface of mount pad is pegged graft and is had two sets of support columns, and the support column is fixed on the surface of anchor clamps module, and the top of support column is provided with bolt two.

Preferably, the mounting seat is of a 'er' -shaped frame structure, a first sliding groove and a second sliding groove are formed in the top surface of the mounting seat, a fifth plane is formed between the first sliding groove and the second sliding groove and is of an 'I' -shaped plate-shaped structure, a chip discharge groove is formed in one end of the fifth plane, a first long circular arc-shaped hole and a second long circular arc-shaped hole are formed in the surface of the positioning module, and the two groups of supporting columns are respectively inserted into the first long circular arc-shaped hole and the second long circular arc-shaped hole.

Preferably, the bottom surface of the piston seat is provided with two T-shaped nuts, the two T-shaped nuts are respectively connected in the first sliding groove and the second sliding groove in a sliding mode, the bottom surface of the piston seat is provided with a sixth plane, a round hole is formed in the piston seat, the top surface of the piston seat is provided with a third bolt hole and a fourth bolt hole, the third bolt hole and the fourth bolt hole are connected with the T-shaped nuts corresponding to the bolt in a splicing mode, the top surface of the piston seat is provided with a fifth threaded hole, a limiting screw is arranged inside the fifth threaded hole, and one end of the limiting screw is provided with a locking nut.

Preferably, the outer wall of the guide sleeve is a first cylindrical surface, the guide sleeve is penetrated through by the circular hole, and an open slot is formed in the surface of the first cylindrical surface.

Preferably, the shaft body of the piston shaft is a second cylindrical surface, an external thread is arranged at one end of the second cylindrical surface, a V-shaped groove is formed in the other end of the second cylindrical surface, and an oblong groove is formed in the surface of the second cylindrical surface.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides an automobile wheel hub bearing inner race boring grab places automobile wheel hub bearing inner race on anchor clamps module, make the piston shaft move backward when pulling the handle, after waiting to process the product and placing, loosen the handle, the piston shaft resets under reset spring's effect and makes V type groove and waiting to process the product strengthening rib cooperation, automobile wheel hub bearing inner race realizes the location cooperation through round hole and anchor clamps module upper location face, little terminal surface and anchor clamps module upper location plane or round hole and anchor clamps module upper location face, little terminal surface and anchor clamps module upper location plane; after the oil passage of the clamp is communicated with oil, the hydraulic cylinder acts, and a pressing plate and the rotation degree on the hydraulic cylinder press and compress a product.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is a schematic view of the bottom plate structure of the present invention;

FIG. 3 is a schematic view of the base structure of the present invention;

FIG. 4 is a schematic view of the bottom structure of the base of the present invention;

FIG. 5 is a schematic structural view of a clamp module according to the present invention;

FIG. 6 is a top view of the structure of the clamp module of the present invention;

FIG. 7 is a schematic view of the bottom structure of the clamp module of the present invention;

FIG. 8 is a schematic structural diagram of the positioning module of the present invention;

fig. 9 is a schematic structural view of the mounting base of the present invention;

fig. 10 is a schematic view of the piston seat of the present invention;

fig. 11 is a schematic structural view of the piston seat of the present invention;

fig. 12 is a schematic view of the piston shaft structure of the present invention;

fig. 13 is a schematic structural view of the guide sleeve of the present invention;

fig. 14 is the utility model discloses automobile wheel hub bearing inner race structure schematic diagram.

In the figure: the clamp comprises a base plate 1, a base mounting hole 11, a first plane 12, a main oil circuit hole 13, an oil circuit hole 14, a first threaded hole 15, a second threaded hole 16, a base 2, a boss 21, a third threaded hole 211, a first round hole 212, a second plane 213, a first bolt hole 22, a first cylindrical boss 23, a third plane 24, a clamp module 3, a fourth plane 30, a first cylindrical positioning plane 31, a second cylindrical positioning plane 32, a third cylindrical positioning plane 33, a first positioning plane 34, a second positioning plane 35, a third positioning plane 36, a second cylindrical boss 37, a fourth threaded hole 38, a second bolt hole 39, an oil cylinder 4, a single-side oil cylinder 41, a double-side oil cylinder 42, a positioning module 5, a first bolt 50, a mounting seat 51, a first chute 511, a fifth plane 512, a second chute 513, a first long circular arc-shaped hole 514, a second long circular arc-shaped hole 515, a chip groove 516, a piston seat 52, a round hole 521, a third bolt hole 522, a fifth threaded hole 523, a bolt hole 524, a sixth plane 525, a T-shaped nut 5b, a T-shaped bolt, a positioning plate, a positioning, The automobile hub bearing outer ring support comprises a handle 53, a guide sleeve 54, a circular hole 541, a first cylindrical surface 542, an open groove 543, a piston shaft 55, a second cylindrical surface 551, an oblong groove 552, an external thread 553, a V-shaped groove 554, a limit screw 56, a lock nut 57, a return spring 58, a support column 59, a second bolt 5a, a double-side pressure plate 6, a single-side pressure plate 7, an oil pipe joint 8, a workbench 9 and an automobile hub bearing outer ring 10.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clear and fully described, embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of some embodiments of the invention and are not limiting of the invention, and that all other embodiments obtained by those of ordinary skill in the art without the exercise of inventive faculty are within the scope of the invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "inner", "outer", "top", "bottom", "side", "vertical", "horizontal", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "a," "an," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

For the purposes of simplicity and explanation, the principles of the embodiments are described by referring mainly to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one skilled in the art that the embodiments may be practiced without these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1 to 13, the present invention provides a technical solution: a drilling fixture for an outer ring of an automobile hub bearing comprises a workbench 9, a bottom plate 1 is arranged on the top surface of the workbench 9, a first plane 12 is integrally formed on the top surface of the bottom plate 1, a plurality of base mounting holes 11 are formed in the surface of the first plane 12, a main oil way hole 13 and an oil way hole 14 are formed in the side wall of the bottom plate 1, the main oil way hole 13 and the oil way hole 14 are perpendicular and communicated, an oil pipe connector 8 is mounted at the end of the main oil way hole 13, a plurality of threaded holes 15 and threaded holes 16 are formed in the surface of the first plane 12, a plurality of bases 2 are arranged on the top surface of the bottom plate 1, three bosses 21 which are uniformly distributed are integrally formed on the top surface of each base 2, a first round hole 212 is formed in the surface of each boss 21, a second plane 213 is arranged on the top surface of the second plane 213, a third threaded hole 211 is formed in the surface of the second plane, and a plurality of first bolt holes 22 are formed in the surface of each base 2, the first bolt hole 22 is positioned between two adjacent bosses 21, and a first cylindrical boss 23 and a third plane 24 are integrally formed on the bottom surface of the base 2;

the top of base 2 is provided with anchor clamps module 3, the surface of anchor clamps module 3 is provided with orientation module 5, orientation module 5 includes mount pad 51, the upper portion sliding connection of mount pad 51 has piston seat 52, first 521 of round hole of piston seat 52 pegs graft there is uide bushing 54, second round hole of uide bushing 54 pegs graft there is piston shaft 55, the other end of stopper shaft 55 is connected with handle 53, the body of rod outside cover of piston shaft 55 is equipped with reset spring 58, the surface of mount pad 51 pegs graft there are two sets of support columns 59, support column 59 fixes on the surface of anchor clamps module 3, and the top of support column 59 is provided with bolt two 5a, the top surface integrated into one piece of anchor clamps module 3 has third cylindrical orientation face 33, the top surface integrated into one piece of third cylindrical orientation face 33 has second cylindrical orientation face 32, the top surface integrated into one piece of second cylindrical orientation face 32 has third cylindrical orientation face 33, the top surface of anchor clamps module 3, third cylindrical orientation face 33, The diameters of circular surfaces of the second cylindrical positioning surface 32 and the first cylindrical positioning surface 31 decrease from bottom to top, the top surface of the clamp module 3, the third cylindrical positioning surface 33, the second cylindrical positioning surface 32 and the first cylindrical positioning surface 31 form a third positioning plane 36, a second positioning plane 35 and a first positioning plane 34 from bottom to top, a second cylindrical boss 37 and a fourth plane 30 are integrally formed on the bottom surface of the clamp module 3, and a fourth threaded hole 38 and a second bolt hole 39 are formed in the surface of the clamp module 3;

the mounting base 51 is of a 'er' shaped frame structure, a first sliding groove 511 and a second sliding groove 513 are formed in the top surface of the mounting base 51, a fifth plane 512 is formed between the first sliding groove 511 and the second sliding groove 513, the fifth plane 512 is of an 'i' shaped plate-shaped structure, a scrap discharge groove 516 is formed at one end of the fifth plane 512, a first long arc-shaped hole 514 and a second long arc-shaped hole 515 are formed in the surface of the positioning module 5, two groups of support columns 9 are respectively inserted into the first long arc-shaped hole 514 and the second long arc-shaped hole 515, two T-shaped nuts 5b are arranged on the bottom surface of the piston base 52, the two T-shaped nuts 5b are respectively connected into the first sliding groove 511 and the second sliding groove 513 in a sliding mode, a sixth plane 525 is arranged on the bottom surface of the piston base 52, a round hole 521 is formed in the piston base 52, a third bolt hole 522 and a fourth bolt hole 524 are formed in the top surface of the piston base 52, a first bolt hole 50 is inserted into the third bolt hole 524 to connect with the corresponding T-shaped nut 5b, the top surface of the piston seat 52 is provided with a threaded hole five 523, a limit screw 56 is arranged inside the threaded hole five 523, one end of the limit screw 56 is provided with a lock nut 57, the outer wall of the guide sleeve 54 is a cylindrical surface one 542, the guide sleeve 54 is penetrated through by a round hole 541, the surface of the cylindrical surface one 542 is provided with an open groove 543, the shaft body of the piston shaft 55 is a cylindrical surface two 551, one end of the cylindrical surface two 551 is provided with an external thread 553, the other end of the cylindrical surface two 551 is provided with a V-shaped groove 554, and the surface of the cylindrical surface two 551 is provided with a long circular groove 552;

the oil cylinder 4 is arranged on the top surface of the bottom plate 1, the oil cylinder 4 comprises two groups of unilateral oil cylinders 41 and a plurality of bilateral oil cylinders 42, the base 2 is arranged between the two groups of oil cylinders, the bilateral oil cylinders 42 are arranged between two adjacent bases 2, the top ends of the two groups of unilateral oil cylinders 41 are both provided with unilateral pressing plates 7, and the top surface of the bilateral oil cylinder 42 is provided with a bilateral pressing plate 6; automobile wheel hub bearing inner race 10 cover is established in the outside of anchor clamps module 3, and positioning module 5 is spacing to automobile wheel hub bearing inner race 10, and the surface of bottom plate 1 is provided with oil pipe joint 8.

The working principle is as follows: during actual use, the automobile hub bearing outer ring 10 is placed on the clamp module 3, the piston shaft 55 moves backwards when the handle 53 is pulled, after a product to be processed is placed, the handle 53 is loosened, the piston shaft 55 resets under the action of the reset spring 58 and enables the V-shaped groove 554 to be matched with the reinforcing rib 103 of the product to be processed, the automobile hub bearing outer ring 10 is in positioning fit with the first cylindrical positioning surface 31 on the clamp module through a circular hole, the small end surface of the automobile hub bearing outer ring 10 is in positioning fit with the first cylindrical positioning surface 34 on the clamp module 3 or the circular hole is in positioning fit with the second cylindrical positioning surface 32 on the clamp module 3, the small end surface is in positioning fit with the second cylindrical positioning surface 35 on the clamp module 3 or the second cylindrical positioning surface 33 on the circular hole clamp module, and the small end surface is in positioning fit with the third positioning surface 36 on the clamp module 3; after the oil way of the clamp is filled with oil, the hydraulic cylinder 4 acts, and the double-side pressing plate 6 and the single-side pressing plate 7 on the hydraulic cylinder rotate by 90 degrees to press down and tightly press the product; disassembling the clamp module 3, and assembling the clamp module 3 to be installed on the base 2; the installation position of the positioning module 5 is adjusted according to the size of the product, and the front and rear positions of the piston seat 52 are adjusted.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automobile wheel hub bearing inner race boring grab which characterized in that: automobile wheel hub bearing inner race boring grab includes:

workstation (9), the top surface of workstation (9) is provided with bottom plate (1), the top surface of bottom plate (1) is provided with a plurality of bases (2), the top of base (2) is provided with anchor clamps module (3), the surface of anchor clamps module (3) is provided with orientation module (5), the top surface integrated into one piece of anchor clamps module (3) has cylinder locating surface three (33), the top surface integrated into one piece of cylinder locating surface three (33) has cylinder locating surface two (32), the top surface integrated into one piece of cylinder locating surface two (32) has cylinder locating surface one (31), the top surface of anchor clamps module (3), cylinder locating surface three (33), cylinder locating surface two (32) and cylinder locating surface one (31) descend from bottom to top the disc diameter and descend gradually, and the top surface of anchor clamps module (3), cylinder locating surface three (33), cylinder locating surface two (32) and cylinder locating surface one (31) constitute locating surface three (36) from bottom to top, A second positioning plane (35) and a first positioning plane (34), wherein a second cylindrical boss (37) and a fourth cylindrical boss (30) are integrally formed on the bottom surface of the clamp module (3), and a fourth threaded hole (38) and a second bolt hole (39) are formed in the surface of the clamp module (3);

the oil cylinder (4) is arranged on the top surface of the bottom plate (1), the oil cylinder (4) comprises two groups of unilateral oil cylinders (41) and a plurality of bilateral oil cylinders (42), the base (2) is arranged between the two groups of oil cylinders, the bilateral oil cylinders (42) are arranged between two adjacent bases (2), unilateral pressing plates (7) are arranged at the top ends of the two groups of unilateral oil cylinders (41), and bilateral pressing plates (6) are arranged on the top surfaces of the bilateral oil cylinders (42); and

the automobile hub bearing outer ring (10) is sleeved on the outer side of the clamp module (3), the positioning module (5) is used for limiting the automobile hub bearing outer ring (10), and an oil pipe joint (8) is arranged on the surface of the bottom plate (1).

2. The automobile hub bearing outer ring drilling clamp according to claim 1, characterized in that: the top surface integrated into one piece of bottom plate (1) has plane one (12), and a plurality of base mounting hole (11) have been seted up on the surface of plane one (12), and main oil circuit hole (13) and oil circuit hole (14) have been seted up to the lateral wall of bottom plate (1), and main oil circuit hole (13) and oil circuit hole (14) are perpendicular and communicate, and oil pipe joint (8) are installed in the port department in main oil circuit hole (13), and a plurality of screw hole one (15) and screw hole two (16) have been seted up on the surface of plane one (12).

3. The automobile hub bearing outer ring drilling clamp of claim 1, characterized in that: the top surface integrated into one piece of base (2) has three boss (21) of evenly arranging, and the surface of boss (21) is provided with round hole one (212), and the top surface of boss (21) is provided with plane two (213), and the surface of plane two (213) is provided with screw hole three (211), and a plurality of bolt hole one (22) have been seted up on the surface of base (2), and bolt hole one (22) are in between two adjacent boss (21), and the bottom surface integrated into one piece of base (2) has cylinder boss one (23) and plane three (24).

4. The automobile hub bearing outer ring drilling clamp of claim 1, characterized in that: positioning module (5) is including mount pad (51), the upper portion sliding connection of mount pad (51) has piston seat (52), piston seat (52) are fixed on mount pad (51) through screw 50, the surface of piston seat (52) is pegged graft and is had uide bushing (54), the one end of piston axle (55) is pegged graft and is had handle (53), the other end of piston axle (55) is pegged graft and is had uide bushing (54), the body of rod outside cover of piston axle (55) is equipped with reset spring (58), the surface of mount pad (51) is pegged graft and is had two sets of support columns (59), the surface at anchor clamps module (3) is fixed in support column (59), and the top of support column (59) is provided with bolt two (5 a).

5. The automobile hub bearing outer ring drilling clamp of claim 4, characterized in that: the mounting seat (51) is of a 'er' -shaped frame structure, a first sliding groove (511) and a second sliding groove (513) are formed in the top surface of the mounting seat (51), a fifth plane (512) is formed between the first sliding groove (511) and the second sliding groove (513), the fifth plane (512) is of an 'I' -shaped plate-shaped structure, a chip discharge groove (516) is formed in one end of the fifth plane (512), a first long arc-shaped hole (514) and a second long arc-shaped hole (515) are formed in the surface of the mounting seat (51), and two groups of supporting columns (59) are respectively inserted into the first long arc-shaped hole (514) and the second long arc-shaped hole (515).

6. The automobile hub bearing outer ring drilling clamp of claim 5, characterized in that: the bottom surface of the piston seat (52) is provided with two T-shaped nuts (5b), the two T-shaped nuts (5b) are respectively connected in a first sliding groove (511) and a second sliding groove (513) in a sliding mode, the bottom surface of the piston seat (52) is provided with six planes (525), a round hole (521) is formed in the piston seat (52), the top surface of the piston seat (52) is provided with a third bolt hole (522) and a fourth bolt hole (524), a first bolt (50) is inserted into the third bolt hole (522) and the fourth bolt hole (524) to connect the corresponding T-shaped nuts (5b), the top surface of the piston seat (52) is provided with a fifth threaded hole (523), a limit screw (56) is arranged inside the fifth threaded hole (523), and one end of the limit screw (56) is provided with a locking nut (57).

7. The automobile hub bearing outer ring drilling clamp of claim 6, characterized in that: the outer wall of the guide sleeve (54) is a first cylindrical surface (542), the guide sleeve (54) is penetrated through by a second circular hole (541), and the surface of the first cylindrical surface (542) is provided with an open groove (543).

8. The automobile hub bearing outer ring drilling clamp of claim 7, characterized in that: the piston shaft (55) is characterized in that the shaft body is a second cylindrical surface (551), an external thread (553) is arranged at one end of the second cylindrical surface (551), a V-shaped groove (554) is arranged at the other end of the second cylindrical surface (551), and an oblong groove (552) is formed in the surface of the second cylindrical surface (551).