CN213559425U

CN213559425U - Punching equipment with multiple connecting hole processing modes for automobile connecting piece

Info

Publication number: CN213559425U
Application number: CN202022096643.4U
Authority: CN
Inventors: 彭杰章
Original assignee: Wuhan Zhongxin Automation Machinery Equipment Co ltd
Current assignee: Wuhan Zhongxin Automation Machinery Equipment Co ltd
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2021-06-29
Anticipated expiration: 2030-09-22

Abstract

The utility model discloses a die-cut equipment of car connecting piece with multiple connecting hole processing mode, include: the device comprises a fixing structure, a punching seat, a deflection structure, a pressure lever, a torsion structure, a fastening bolt, an automobile connecting piece and a punching hole; when the automobile connecting piece punching device is used, the connecting hole in the connecting column is connected with punching power equipment, so that the whole pressing rod can reciprocate up and down, the automobile connecting piece which is not punched is penetrated into the first embedded groove from the second embedded groove, the punching power equipment presses the pressing rod downwards, and the punching hole strip at the bottom end of the pressing rod punches the automobile connecting piece to form a punching hole; the beneficial effects of utility model are that: possess multiple connecting hole processing mode, can process different die-cut holes on the same automobile connecting piece, cut the different die-cut holes on the different automobile connecting pieces of profile with the homonymy, need not establish die-cut hole equipment alone to practice thrift use cost.

Description

Punching equipment with multiple connecting hole processing modes for automobile connecting piece

Technical Field

The utility model relates to the machining field specifically is a die-cut equipment of car connecting piece with multiple connecting hole processing mode.

Background

Automobile design adds man-hour, often can use the processing of a lot of automobile connector, the connecting piece of most bar, like the long slab connecting piece, U type connection both ends all need processing connecting hole, but the connecting hole at its both ends has the condition of nonconformity apart from the interval of its adjacent side, the deflection angle of the connecting hole at connecting piece both ends also can be nonconformity occasionally simultaneously, under the normal condition, need establish two kinds of die-cut hole equipment respectively and come to process automobile connector respectively, the equipment cost of establishing has been increased, so the automobile connector die-cut equipment that current technique needs multiple connecting hole processing mode, can process different die-cut holes on the same automobile connector, cut the different die-cut hole on the different automobile connector of profile with the homonymy, need not establish die-cut hole equipment alone, in order to practice thrift use cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a die-cut equipment of vehicle connecting piece with multiple connecting hole processing mode to solve the problem that mentions in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

an automobile connecting piece punching device with multiple connecting hole machining modes comprises: the device comprises a fixing structure, a punching seat, a deflection structure, a pressure lever, a torsion structure, a fastening bolt, an automobile connecting piece and a punching hole; the automobile connecting piece is a workpiece needing to be processed, and a stamping hole needing to be processed is formed in the workpiece; the torsion structure comprises a rotating handle and a screw rod; the fixing structure comprises a base, a bottom plate, a supporting plate, a trapezoidal block, a first embedded groove and a threaded hole; the automobile connecting piece is characterized in that the base is of a boss stretching structure, a bottom plate of a flat plate structure is arranged at the bottom of the base, a horizontal stretching structure with an isosceles trapezoid longitudinal section is arranged at the upper end of the base to form a trapezoid block, two supporting plates of the horizontal structure are fixedly welded above the front side of the base, the two supporting plates are distributed in parallel, an inwards concave groove is formed in the joint of the trapezoid block and the base to form a first inner embedded groove, the inner contour of the first inner embedded groove is consistent with the side contour of the automobile connecting piece, and a screw hole parallel to the trapezoid block is formed in the middle of the trapezoid block to form a threaded hole; the punching seat comprises a sliding table, a trapezoidal groove, a rotating hole, a fastening hole and a shaft sleeve; the sliding table is of a block structure, a cutting position is arranged below the front side of the sliding table, a trapezoidal groove with a trapezoidal longitudinal section is arranged on the rear side of the cutting position, the longitudinal section profile of the trapezoidal groove is consistent with that of the trapezoidal block, the trapezoidal groove is externally embedded on the trapezoidal block, the trapezoidal groove and the trapezoidal block are in sliding connection, a round hole is formed in the upper end of the cutting position to form a rotating hole, a shaft sleeve is arranged behind the trapezoidal groove and connected to the sliding table, a screw rod is embedded and matched in the shaft sleeve, a rotating handle is arranged behind the screw rod, the screw rod and the shaft sleeve are in limiting connection, the shaft sleeve and the screw rod form a rotating pair, and the front end of the screw rod is matched in the; the deflection structure comprises a rotary table, a rotary drum, an arc-shaped groove, a prismatic hole, a connecting plate, a hole seat, a second embedded groove and a preset hole, wherein the rotary table is of a stretching blocky structure, the rotary table is provided with the prismatic hole which is coaxial with the rotary hole, the cross-sectional profile of the prismatic hole is a regular hexagon, the lower end surface of the rotary table is provided with the rotary drum which is coaxial with the rotary hole, and the rotary drum is of a cylindrical structure; a hole seat with a disc structure is arranged below the front of the rotary table, the front end of the hole seat is connected to the front end of the rotary table through a connecting plate, the connecting plate is perpendicular to the rotary table and the hole seat, the hole seat and the rotary hole are coaxial, a preset hole with a cross section profile consistent with that of the stamping hole is arranged on the hole seat, a common horizontal groove is formed in the hole seat and the connecting plate to form a second inner embedded groove, the side section profile of the second inner embedded groove is consistent with that of an automobile connecting piece, and the side projections of the first inner embedded groove and the second inner embedded groove are completely consistent; the depression bar includes limiting plate, prism, pressure platform, punching press hole strip, spliced pole, the prism is the unanimous cylindricality structure of the transversal profile of transversal profile and the transversal profile of arris hole, prismatic embedded in the arris hole, prismatic height is greater than the height of arris hole, and prismatic lower extreme is equipped with the pressure platform of a block structure, presses the platform lower part to be equipped with vertical tensile structure and forms punching press hole strip, the transversal profile of punching press hole strip and punching press hole are unanimous, prismatic the top is equipped with the limiting plate of a plectane structure, and the limiting plate top is equipped with the spliced pole, is equipped with the connecting hole that is used for connecting punching press structure.

Preferably, the diameter of the cross-section outer contour of the rotary drum is consistent with that of the rotary hole, the diameter of the cross-section inner contour of the rotary drum is greater than that of the outer contour of the prism, and the deflection structure is concentrically embedded in the rotary hole through the rotary drum, so that the deflection structure and the punch holder form a rotary pair.

Preferably, the rear side of the rotary table is provided with a downward cutting part, the upper surface of the cutting part is provided with an arc-shaped groove, the axis of the arc-shaped groove is consistent with the axis of the rotary drum, a screw hole is arranged on the sliding table below the arc-shaped groove to form a fastening hole, the distance from the axis of the fastening hole to the axis of the rotary drum is consistent with the central radius of the arc-shaped groove, and the fastening bolt penetrates through the arc-shaped groove and is screwed in the fastening hole in a threaded fit mode.

Preferably, the rear part of the trapezoidal block is provided with a reserved opening groove for the displacement of the shaft sleeve.

Preferably, reinforcing ribs are arranged between the supporting plate and the base for reinforcing connection.

Preferably, the thickness of the punched hole strip is larger than that of the automobile connecting piece.

Preferably, the arc-shaped groove is provided with corresponding angle scales.

When the automobile connecting piece punching device is used, the connecting hole on the connecting column is connected with punching power equipment to realize the up-and-down reciprocating motion of the whole pressing rod (the punching power equipment is external equipment and is not within the protection range of the application, only the function of controlling the pressing rod to realize the up-and-down reciprocating motion can be realized, and other structures and specific models are not limited), when the automobile connecting piece which is not punched with punched holes is penetrated into the first inner embedded groove from the second inner embedded groove, the punching power equipment presses the pressing rod downwards to enable the punching hole strip at the bottom end of the pressing rod to punch the automobile connecting piece into the punching holes, the pressing rod can be replaced to adapt to the punched holes of the groove holes with different shapes, the pressing rod can be pushed through the rotating handle to rotate the screw rod, the screw rod and the shaft sleeve form a rotating pair, so that when the screw rod rotates, the screw rod can drive the threaded hole and the punching seat to integrally move due to the matching of, and then can select the position of adjustment punching press hole punching press on automobile connection spare, through loosening the fastening bolt, through the relative position of adjustment fastening bolt in the arc wall of rotatory revolving stage, and then the whole deflection angle with the hole seat of adjustment deflection structure, the fastening bolt of relocking, and then the deflection angle of adjustment punching press hole strip, and then the angle of punching a hole of adjustment punching press hole strip, and then the formation angle of adjustment punching press hole.

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

the position of the punching hole punched on the automobile connecting piece can be selectively adjusted by arranging the torsion structure and the deflection structure, the position of the fastening bolt in the arc-shaped groove is relatively adjusted by loosening the fastening bolt and rotating the turntable, so that the deflection angle of the whole deflection structure and the hole seat is adjusted, the fastening bolt is locked, the deflection angle of the punching hole strip is adjusted, the punching angle of the punching hole strip is adjusted, and the forming angle of the punching hole is adjusted; make the utility model discloses possess multiple connecting hole processing mode, can process the die-cut hole of difference on the same auto connector, cut the die-cut hole of difference on the different auto connector of profile with the homonymy, need not establish die-cut hole equipment alone to practice thrift use cost.

Drawings

Fig. 1 is a schematic diagram of a three-dimensional explosion structure of an automobile connecting piece punching device with multiple connecting hole processing modes.

Fig. 2 is a schematic perspective assembly structure diagram of an automobile connector punching device with multiple connecting hole processing modes.

Fig. 3 is a schematic view of the bottom side explosion structure of the punching equipment for the automobile connecting piece with various connecting hole processing modes.

Fig. 4 is a schematic diagram of a screw and shaft sleeve matching structure in an automobile connecting piece punching device with multiple connecting hole processing modes.

In the figure: 1. a fixed structure; 2. punching a base; 3. a deflection structure; 4. a pressure lever; 5. a torsion structure; 6. fastening bolts; 7. an automotive connector; 8. punching a hole; 11. a base; 12. a base plate; 13. a support plate; 14. a trapezoidal block; 15. a first inner caulking groove; 16. a threaded hole; 21. a sliding table; 22. a trapezoidal groove; 23. rotating the hole; 24. a fastening hole; 25. a shaft sleeve; a turntable 31; a drum 32, a drum; 33. an arc-shaped slot; 34. a prismatic hole; the connecting plate 35, the hole seat 36, the second embedded groove 37 and the preset hole 38; 41. a limiting plate; 42. a prism; 43. pressing the table; 44. punching a hole strip; 45. connecting columns; 51. a handle is rotated; 52. a screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments; 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.

Referring to fig. 1-4, in an embodiment of the present invention, an apparatus for punching a connecting member of an automobile with multiple connecting hole processing modes includes: the device comprises a fixed structure 1, a punching seat 2, a deflection structure 3, a pressure lever 4, a torsion structure 5, a fastening bolt 6, an automobile connecting piece 7 and a punching hole 8; the automobile connecting piece 7 is a workpiece to be processed, and a punching hole 8 to be processed is formed in the workpiece; the torsion structure 5 comprises a rotating handle 51 and a screw 52; the fixing structure 1 comprises a base 11, a bottom plate 12, a supporting plate 13, a trapezoidal block 14, a first embedded groove 15 and a threaded hole 16; the base 11 is of a boss stretching structure, a bottom plate 12 of a flat plate structure is arranged at the bottom of the base 11, a horizontal stretching structure with an isosceles trapezoid longitudinal section is arranged at the upper end of the base 11 to form a trapezoid block 14, two support plates 13 of the horizontal structure are fixedly welded above the front side of the base 11, the two support plates 13 are distributed in parallel, an inward concave groove is formed at the joint of the trapezoid block 14 and the base 11 to form a first inner embedded groove 15, the inner contour of the first inner embedded groove 15 is consistent with the side contour of the automobile connecting piece 7, and a screw hole forming threaded hole 16 parallel to the trapezoid block 14 is arranged in the middle of the trapezoid block 14; the punch seat 2 comprises a sliding table 21, a trapezoidal groove 22, a rotating hole 23, a fastening hole 24 and a shaft sleeve 25; the sliding table 21 is of a block structure, a cutting position is arranged below the front side of the sliding table 21, a trapezoidal groove 22 with a trapezoidal longitudinal section is arranged on the rear side of the cutting position, the longitudinal section profile of the trapezoidal groove 22 is consistent with that of the trapezoidal block 14, the trapezoidal groove 22 is externally embedded on the trapezoidal block 14, the trapezoidal groove 22 is in sliding connection with the trapezoidal block 14, a round hole forming a rotating hole 23 is arranged at the upper end of the cutting position, a shaft sleeve 25 is arranged behind the trapezoidal groove 22 and connected onto the sliding table 21, a screw rod 52 is embedded and matched in the shaft sleeve 25, a rotating handle 51 is arranged behind the screw rod 52, the screw rod 52 is in limiting connection with the shaft sleeve 25, the shaft sleeve 25 and the screw rod 52 form a rotating pair, and the front end of the screw rod 52 is matched in the threaded hole; the deflection structure 3 comprises a rotary table 31, a rotary drum 32, an arc-shaped groove 33, a prismatic hole 34, a connecting plate 35, a hole seat 36, a second embedded groove 37 and a preset hole 38, wherein the rotary table 31 is of a stretching block-shaped structure, the rotary table 31 is provided with the prismatic hole 34 which is coaxial with the rotary hole 23, the cross section of the prismatic hole 34 is of a regular hexagon, the lower end face of the rotary table 31 is provided with the rotary drum 32 which is coaxial with the rotary hole 23, and the rotary drum 32 is of a cylindrical structure; a hole seat 36 with a disc structure is arranged below the front of the rotary table 31, the front end of the hole seat 36 is connected to the front end of the rotary table 31 through a connecting plate 35, the connecting plate 35 is perpendicular to the rotary table 31 and the hole seat 36, the hole seat 36 and the rotary hole 23 are coaxial, a preset hole 38 with a cross section profile consistent with that of the stamping hole 8 is arranged on the hole seat 36, a common horizontal groove is formed in the hole seat 36 and the connecting plate 35 to form a second inner caulking groove 37, the side section profile of the second inner caulking groove 37 is consistent with that of the automobile connecting piece 7, and the side projections of the first inner caulking groove 15 and the second inner caulking groove 37 are completely consistent; the depression bar 4 includes limiting plate 41, prism 42, presses platform 43, punching press hole strip 44, spliced pole 45, prism 42 is the unanimous cylindricality structure of the transversal profile of transversal profile and arris hole 34, prism 42 is embedded in arris hole 34, and prism 42's height is greater than the height of arris hole 34, and prism 42 lower extreme is equipped with the pressure platform 43 of a block structure, presses platform 43 lower part to be equipped with vertical tensile structure and forms punching press hole strip 44, the transversal profile of punching press hole strip 44 and punching press hole 8 are unanimous, prism 42's the top is equipped with a limiting plate 41 of plectane structure, and limiting plate 41 top is equipped with spliced pole 45, is equipped with the connecting hole that is used for connecting punching press structure on the spliced pole 45.

The diameter of the cross-section outer contour of the rotary drum 32 is consistent with that of the rotary hole 23, the diameter of the cross-section inner contour of the rotary drum 32 is greater than that of the prism 42, the outer contour of the prism is consistent, the deflecting structure 3 is concentrically embedded in the rotary hole 23 through the rotary drum 32, and the deflecting structure 3 and the punch holder 2 form a rotary pair.

The rear side of the rotary table 31 is provided with a downward cutting part, the upper surface of the cutting part is provided with an arc-shaped groove 33, the axis of the arc-shaped groove 33 is consistent with that of the rotary drum 32, a screw hole is arranged on the sliding table 21 below the arc-shaped groove 33 to form a fastening hole 24, the distance from the axis of the fastening hole 24 to the axis of the rotary drum 32 is consistent with the central radius of the arc-shaped groove 33, and the fastening bolt 6 penetrates through the arc-shaped groove 33 and is screwed in the fastening hole 24 in a threaded fit mode.

The rear part of the trapezoidal block 14 is provided with a reserved slot position for the displacement of the shaft sleeve 25.

And reinforcing ribs are arranged between the supporting plate 13 and the base 11 for reinforcing connection.

The thickness of the punched hole strip 44 is greater than the thickness of the automotive connector 7.

And the arc-shaped groove 33 is provided with corresponding angle scales.

The utility model discloses a theory of operation is: when the automobile connecting piece punching device is used, the connecting hole on the connecting column 45 is used for connecting punching power equipment to realize the up-and-down reciprocating motion of the whole pressing rod 4 (the punching power equipment is external equipment and is not in the protection range of the application, as long as the function of controlling the pressing rod 4 to realize the up-and-down reciprocating motion can be realized, other structures and specific models are not limited), when the automobile connecting piece 7 which is not punched with the punching hole 8 is penetrated into the first inner embedded groove 15 from the second inner embedded groove 37, the punching power equipment presses the pressing rod 4 downwards, so that the punching hole strip 44 at the bottom end of the pressing rod 4 punches the automobile connecting piece 7 to form the punching hole 8, the pressing rod 4 can be replaced to adapt to the punching holes of the groove-shaped holes with different shapes, the screw rod 52 can be pushed to rotate by the rotating handle 51, and the screw rod 52 and the shaft sleeve 25 form a rotating pair, so that when the, screw 52 will drive screw hole 16 and towards seat 2 global motion, and then adjust the interval between first embedded groove 15 and the predetermined hole 38, and then can select the position of adjustment punching press hole 8 punching press on automotive connector 7, through loosening fastening bolt 6, through the position of rotatory revolving stage 31 relative adjustment fastening bolt 6 in arc 33, and then the adjustment deflects the whole angle of deflecting structure 3 and hole seat 36, and then locking fastening bolt 6, and then the angle of deflection of adjustment punching press hole strip 44, and then the angle of punching a hole of adjustment punching press hole strip 44, and then the angle of formation of adjustment punching press hole 8 (this application is only to the end spot facing work of automotive connector 7, do not relate to the mesopore processing, wherein the cross sectional profile of punching press hole 8 is not injectd).

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated; thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein; any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. An automobile connecting piece punching device with multiple connecting hole machining modes comprises: the device comprises a fixing structure (1), a punching seat (2), a deflection structure (3), a pressure rod (4), a torsion structure (5), a fastening bolt (6), an automobile connecting piece (7) and a punching hole (8); the method is characterized in that: the automobile connecting piece (7) is a workpiece needing to be processed, and a stamping hole (8) needing to be processed is formed in the workpiece; the torsion structure (5) comprises a rotating handle (51) and a screw rod (52); the fixing structure (1) comprises a base (11), a bottom plate (12), a supporting plate (13), a trapezoidal block (14), a first embedded groove (15) and a threaded hole (16); the automobile connecting piece is characterized in that the base (11) is of a boss stretching structure, a bottom plate (12) of a flat plate structure is arranged at the bottom of the base (11), a horizontal stretching structure with an isosceles trapezoid-shaped longitudinal section is arranged at the upper end of the base (11) to form a trapezoid block (14), two supporting plates (13) of the horizontal structure are fixedly welded above the front side of the base (11), the two supporting plates (13) are distributed in parallel, an inward concave groove is formed at the joint of the trapezoid block (14) and the base (11) to form a first inner embedded groove (15), the inner contour of the first inner embedded groove (15) is consistent with the side contour of the automobile connecting piece (7), and a screw hole (16) parallel to the trapezoid block (14) is formed in the middle of the trapezoid block (14); the punch seat (2) comprises a sliding table (21), a trapezoidal groove (22), a rotary hole (23), a fastening hole (24) and a shaft sleeve (25); the sliding table (21) is of a block structure, a cutting position is arranged below the front side of the sliding table (21), a trapezoidal groove (22) with a trapezoidal longitudinal section is arranged on the rear side of the cutting position, the longitudinal section profile of the trapezoidal groove (22) is consistent with the longitudinal section profile of the trapezoidal block (14), the trapezoidal groove (22) is embedded on the trapezoidal block (14), the trapezoidal groove (22) is in sliding connection with the trapezoidal block (14), a round hole is formed at the upper end of the cutting position to form a rotating hole (23), a shaft sleeve (25) is arranged behind the trapezoidal groove (22) and connected onto the sliding table (21), a screw rod (52) is embedded and matched into the shaft sleeve (25), a rotating handle (51) is arranged behind the screw rod (52), the screw rod (52) is in limiting connection with the shaft sleeve (25), a rotating pair is formed by the shaft sleeve (25) and the screw rod (52), and the front end of the screw rod (52) is matched into a threaded hole (16); the deflection structure (3) comprises a rotary table (31), a rotary drum (32), an arc-shaped groove (33), a prismatic hole (34), a connecting plate (35), a hole seat (36), a second embedded groove (37) and a preset hole (38), wherein the rotary table (31) is of a tensile block-shaped structure, the rotary table (31) is provided with the prismatic hole (34) coaxial with the rotary hole (23), the cross section profile of the prismatic hole (34) is a regular hexagon, the lower end face of the rotary table (31) is provided with the rotary drum (32) coaxial with the rotary hole (23), and the rotary drum (32) is of a cylindrical structure; a hole seat (36) of a disc structure is arranged below the front of the rotary table (31), the front end of the hole seat (36) is connected to the front end of the rotary table (31) through a connecting plate (35), the connecting plate (35) is perpendicular to the rotary table (31) and the hole seat (36), the hole seat (36) and the rotary hole (23) are coaxial, a preset hole (38) with the cross section contour being consistent with that of the stamping hole (8) is arranged on the hole seat (36), a common horizontal groove is formed in the hole seat (36) and the connecting plate (35) to form a second inner embedded groove (37), the side section contour of the second inner embedded groove (37) is consistent with that of the automobile connecting piece (7), and the side projections of the first inner embedded groove (15) and the second inner embedded groove (37) are completely consistent; depression bar (4), including limiting plate (41), prism (42), pressure platform (43), punching press hole strip (44), spliced pole (45), prism (42) are the unanimous cylindricality structure of the transversal profile of transversal profile and arris hole (34), prism (42) are embedded in arris hole (34), and the height that highly is greater than arris hole (34) of prism (42), prism (42) lower extreme are equipped with pressure platform (43) of a square block structure, and pressure platform (43) lower part is equipped with vertical tensile structure and forms punching press hole strip (44), the transversal profile of punching press hole strip (44) and the transversal profile of punching press hole (8) are unanimous, the top of prism (42) is equipped with limiting plate (41) of a circular plate structure, and limiting plate (41) top is equipped with spliced pole (45), is equipped with the connecting hole that is used for connecting punching press structure on spliced pole (45).

2. The automobile connecting piece punching equipment with multiple connecting hole machining modes is characterized in that: the diameter of the cross section outer contour of the rotary drum (32) is consistent with that of the rotary hole (23), the diameter of the cross section inner contour of the rotary drum (32) is greater than that of the outer contour of the prism (42), and the deflection structure (3) is concentrically embedded in the rotary hole (23) through the rotary drum (32), so that the deflection structure (3) and the punch holder (2) form a rotary pair.

3. The automobile connecting piece punching equipment with multiple connecting hole machining modes is characterized in that: the rear side of the rotary table (31) is provided with a downward cutting portion, the upper surface of the cutting portion is provided with an arc-shaped groove (33), the axis of the arc-shaped groove (33) is consistent with the axis of the rotary drum (32), a screw hole is formed in the sliding table (21) below the arc-shaped groove (33) to form a fastening hole (24), the distance from the axis of the fastening hole (24) to the axis of the rotary drum (32) is consistent with the central radius of the arc-shaped groove (33), and the fastening bolt (6) penetrates through the arc-shaped groove (33) and is screwed in the fastening hole (24) through thread matching.

4. The automobile connecting piece punching equipment with multiple connecting hole machining modes is characterized in that: the rear part of the trapezoidal block (14) is provided with a reserved opening slot position for the displacement of the shaft sleeve (25).

5. The automobile connecting piece punching equipment with multiple connecting hole machining modes is characterized in that: and reinforcing ribs are arranged between the supporting plate (13) and the base (11) for reinforcing connection.

6. The automobile connecting piece punching equipment with multiple connecting hole machining modes is characterized in that: the thickness of the punched hole strip (44) is larger than that of the automobile connecting piece (7).

7. The automobile connecting piece punching equipment with multiple connecting hole machining modes is characterized in that: the arc-shaped groove (33) is provided with corresponding angle scales.