CN111230179A

CN111230179A - Punching equipment for automobile brake drum

Info

Publication number: CN111230179A
Application number: CN202010159451.5A
Authority: CN
Inventors: 耿剑
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-09
Filing date: 2020-03-09
Publication date: 2020-06-05

Abstract

The invention relates to the technical field of automobile brake drum processing, in particular to automobile brake drum punching equipment which comprises a processing table, wherein a positioning pin for placing a brake drum is arranged at the top of the processing table, arc-shaped clamps capable of abutting against the brake drum are respectively arranged on two sides of the positioning pin, a clamping driving assembly is arranged on one side of the positioning pin, the working end of the clamping driving assembly is respectively and fixedly connected with one side of each arc-shaped clamp, a rotary punching assembly is arranged above the positioning pin, a vertically-arranged punching machine is arranged at the output end of the rotary punching assembly, the output end of the punching machine extends towards the direction of the positioning pin, a lifting assembly is arranged on one side of the rotary punching assembly, the working end of the lifting assembly is connected with an inner stockholder of the rotary punching assembly, the bottom of the lifting assembly is fixedly connected with the table top of the processing table, and the, and the processed chips can be collected.

Description

Punching equipment for automobile brake drum

Technical Field

The invention relates to the technical field of automobile brake drum processing, in particular to punching equipment for an automobile brake drum.

Background

The brake drum is a kind of iron casting similar to the bell drum, it is fixed with the tire and rotates at the same speed, while braking, it uses the oil pressure to push the brake shoe to contact the inner edge of the brake drum, and the friction force produced by the contact can restrain the rotation of the tire to achieve the purpose of braking, the drum brake is composed of the brake base plate, the brake branch pump, the brake shoe and other related connecting rods, springs, pins, and brake drum.

Disclosure of Invention

The invention aims to provide automobile brake drum punching equipment which can accurately punch a brake drum and can collect processed scraps.

In order to achieve the purpose, the invention adopts the following technical scheme:

the utility model provides an automobile brake drum drilling equipment, including the processing platform, the top of processing platform is equipped with the locating pin that is used for placing the brake drum, the both sides of locating pin are equipped with the arc anchor clamps that can contradict with the brake drum respectively, one side of locating pin is equipped with and presss from both sides tight drive assembly, the work end that presss from both sides tight drive assembly respectively with one side fixed connection of every arc anchor clamps, the top of locating pin is equipped with the rotatory subassembly that punches, the output of rotatory subassembly that punches is equipped with the puncher that is vertical setting, the output of puncher extends the setting to the direction of locating pin, one side of rotatory subassembly that punches is equipped with lifting unit, lifting unit's work end is connected with the inside thigh east of rotatory subassembly that punches, lifting unit's bottom.

Preferably, the locating pin is the cylinder structure, and the top edge of locating pin is equipped with the arcwall face.

Preferably, press from both sides tight drive assembly and include first motor, first threaded rod, second threaded rod and two bearing frames, two bearing frames are the vertical both sides that are located the locating pin respectively, first threaded rod and second threaded rod are the straight line and distribute and set up between two bearing frames, the one end of first threaded rod and the one end fixed connection of second threaded rod, the other end of first threaded rod and second threaded rod can the pivoted respectively insert the inner circle of locating at every bearing frame, the screw on first threaded rod and the second threaded rod is reverse setting, first motor is horizontal fixed mounting on the outer wall of one of them bearing frame, the output of first motor and the one end fixed connection of first threaded rod, be equipped with the lead screw slider on first threaded rod and the second threaded rod respectively, the one end of every lead screw slider respectively with one side fixed connection of every arc clamp splice.

Preferably, one side of the positioning pin, which is far away from the clamping driving assembly, is provided with a guide rod which is horizontally arranged, two ends of the guide rod are respectively fixedly connected with the table top of the processing table through a fixing seat, the guide rod is provided with guide sleeves which are in one-to-one correspondence with each arc-shaped clamping block, and one end of each guide sleeve is respectively fixedly connected with one side of each arc-shaped clamping block.

Preferably, the rotary punching component comprises a hollow frame, a second motor, a grooved pulley, a driving drive plate and a cylindrical pin, the hollow frame is horizontally positioned right above the positioning pin, the side wall of the hollow frame is fixedly connected with the working end of the lifting component, the grooved pulley is horizontally positioned in the hollow frame, a vertically-arranged rotating shaft is arranged at the center of the grooved pulley, the top of the rotating shaft can be rotatably inserted into the top of the hollow frame, the bottom of the rotating shaft can rotatably penetrate through two sides of the bottom of the hollow frame and extend downwards, the axis of the rotating shaft is intersected with the axis of the positioning pin, a horizontally-arranged rotating disc is arranged at the bottom of the rotating shaft, a connecting rod is arranged at one side of the rotating disc, one end of the connecting rod is fixedly connected with the side wall of the punching machine, four avoidance through holes which are distributed at equal angles and used for inserting the output end of the punching machine, the sheave is equipped with four arc incisions that are the cross and distribute the setting, the initiative driver plate is the top one side that the level is located the sheave, the bottom of initiative driver plate is equipped with can be in every arc incision gliding and dials the piece, still be equipped with four rectangle incisions that are the cross and distribute the setting on the sheave, the bottom edge of initiative driver plate is equipped with can be in every rectangle incision gliding column of stirring, dial and be equipped with the arc grooving that can dodge the sheave on the piece, the top center department of initiative driver plate is equipped with the rotary column that is vertical setting, the top of rotary column can the pivoted pass hollow frame two at the top of hollow frame and extend towards hollow frame's top, the second motor is vertical fixed mounting at hollow frame's top, the output of second motor and the top fixed connection of rotary column.

Preferably, lifting unit includes fixed bolster and screw drive, and the fixed bolster is vertical fixed mounting in one side of locating pin, and screw drive is vertical fixed mounting on the fixed bolster that is, screw drive's output and hollow frame's lateral wall fixed connection.

Preferably, a collecting box is arranged below the processing table, and one end of the collecting box is provided with a handle.

Preferably, the both sides of collecting box are equipped with the slide rail that is the level setting respectively, and the inside of every slide rail is equipped with respectively can be at the inside gliding slider of every slide rail, and the one end of every slider respectively with collecting box lateral wall fixed connection.

The invention has the beneficial effects that: a punching device for an automobile brake drum is characterized in that during operation, a brake drum to be processed is placed on a locating pin through a manipulator or manually, the arranged arc-shaped surface can better place the brake drum on the locating pin, after a single brake drum is placed on the locating pin, a first motor is started, the first motor drives a first threaded rod and a second threaded rod to rotate, because threads on the first threaded rod and the second threaded rod are reversely arranged, each screw rod sliding block is respectively driven through the first threaded rod and the second threaded rod to clamp the outer wall of the brake drum, when each arc-shaped clamping block moves, each arc-shaped clamping block respectively carries out limiting movement along a guide rod through each guide sleeve, after the brake drum on the locating pin is located, a screw rod transmission machine is started, a hollow frame is driven to move downwards through the screw rod transmission machine, and a punching machine is simultaneously driven to move downwards, the output end of the perforating machine is in butt joint with one of the avoiding through holes and is used for perforating through the output end of the perforating machine, when the brake drum finishes perforating the first hole, the screw rod transmission machine drives the perforating machine to move upwards, the second motor is started, the second motor drives the rotary column to rotate, the rotary column drives the driving dial plate to rotate, the driving dial plate is rotated to simultaneously shift the column to move along one of the rectangular cutting grooves on the grooved wheel, the shifting block is moved into the other arc cutting groove on the grooved wheel, the rotary shaft and the rotary disc are driven to rotate ninety degrees in this way, the rotary disc drives the perforating machine to rotate ninety degrees along the rotary shaft through the connecting rod, the output end of the perforating machine is in butt joint with the other avoiding through holes, the perforating machine is driven to move downwards through the screw rod transmission machine, the perforating machine is used for perforating on the brake drum again, the perforating machine is, dodge through-hole and every feed opening of processing bench and fall into the piece in proper order to collect in the collection box through every on the locating pin, when needs clearance collecting box, outwards pull out the collecting box along every slide rail through artifical pulling handle to clear up, this equipment can be accurate punch the brake drum, and can collect the piece after processing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the embodiments of the present invention will be briefly described below. It is obvious that the drawings described below are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.

Fig. 1 is a schematic perspective view of a first embodiment of the present invention;

fig. 2 is a schematic perspective view illustrating a second embodiment of the present invention;

FIG. 3 is a partial perspective view of an embodiment of the present invention;

FIG. 4 is a schematic perspective view of a rotary drilling assembly according to an embodiment of the present invention;

FIG. 5 is a partial perspective view of a rotary drilling assembly according to one embodiment of the present invention;

in the figure: 1-a processing table; 2-positioning pins; 3-arc fixture; 4-a perforating machine; 5-arc surface; 6-a first motor; 7-a first threaded rod; 8-a second threaded rod; 9-bearing seats; 10-a screw rod slide block; 11-a guide bar; 12-a guide sleeve; 13-a hollow frame; 14-a second electric machine; 15-a sheave; 16-an active dial; 17-a slide block; 18-a rotating shaft; 19-a turntable; 20-a connecting rod; 21-avoiding the through hole; 22-arc incision; 23-a toggle block; 24-a rectangular cut; 25-toggle column; 26-arc grooving; 27-rotating columns; 28-a fixed support; 29-screw drive; 30-a collection box; 31-a handle; 32-sliding rail.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "inner", "outer", etc. are used for indicating the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not indicated or implied that the referred device or element must have a specific orientation, be constructed in a specific orientation and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and the specific meanings of the terms may be understood by those skilled in the art according to specific situations.

In the description of the present invention, unless otherwise explicitly specified or limited, the term "connected" or the like, if appearing to indicate a connection relationship between the components, is to be understood broadly, for example, as being fixed or detachable or integral; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through one or more other components or may be in an interactive relationship with one another. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, shown car brake drum drilling equipment, including processing platform 1, the top of processing platform 1 is equipped with locating pin 2 that is used for placing the brake drum, the both sides of locating pin 2 are equipped with arc anchor clamps 3 that can conflict with the brake drum respectively, one side of locating pin 2 is equipped with presss from both sides tight drive assembly, the work end that presss from both sides tight drive assembly respectively with one side fixed connection of every arc anchor clamps 3, the top of locating pin 2 is equipped with the rotatory subassembly that punches, the output of rotatory subassembly that punches is equipped with puncher 4 that is vertical setting, the output of puncher 4 extends the setting to the direction of locating pin 2, one side of rotatory subassembly that punches is equipped with lifting unit, lifting unit's work end and the inside stakeholder of rotatory subassembly that punches are connected, lifting unit's bottom and processing platform 1's mesa fixed connection.

Locating pin 2 is the cylinder structure, and the top edge of locating pin 2 is equipped with arcwall face 5, and during the operation, the brake drum that will process through manipulator or manual work is put on locating pin 2, and the arcwall face 5 that sets up can be better places the brake drum on locating pin 2.

The clamping driving assembly comprises a first motor 6, a first threaded rod 7, a second threaded rod 8 and two bearing seats 9, the two bearing seats 9 are vertically positioned at two sides of the positioning pin 2 respectively, the first threaded rod 7 and the second threaded rod 8 are linearly distributed between the two bearing seats 9, one end of the first threaded rod 7 is fixedly connected with one end of the second threaded rod 8, the other ends of the first threaded rod 7 and the second threaded rod 8 can be rotatably inserted into an inner ring of each bearing seat 9 respectively, threads on the first threaded rod 7 and the second threaded rod 8 are arranged in a reverse direction, the first motor 6 is horizontally and fixedly arranged on the outer wall of one of the bearing seats 9, an output end of the first motor 6 is fixedly connected with one end of the first threaded rod 7, screw rod sliders 10 are arranged on the first threaded rod 7 and the second threaded rod 8 respectively, one end of each screw rod slider 10 is fixedly connected with one side of each arc-shaped clamping block respectively, after placing a single brake drum on spacer pin 2, start first motor 6, first motor 6 drives first threaded rod 7 and second threaded rod 8 rotatory, because the screw on first threaded rod 7 and the second threaded rod 8 is reverse setting, drives every lead screw slider 10 through first threaded rod 7 and second threaded rod 8 respectively and presss from both sides the outer wall of every arc clamp splice with the brake drum tight.

One side that tight drive assembly was kept away from to locating pin 2 is equipped with the guide bar 11 that is the level setting, and the mesa fixed connection of fixing base and processing platform 1 is passed through respectively at the both ends of guide bar 11, is equipped with the uide bushing 12 with every arc clamp splice one-to-one on the guide bar 11, the one end of every uide bushing 12 respectively with one side fixed connection of every arc clamp splice, when every arc clamp splice removed, every arc clamp splice carries out spacing removal along guide bar 11 through every uide bushing 12 respectively.

The rotary punching component comprises a hollow frame 13, a second motor 14, a grooved pulley 15 and a driving dial 16, the hollow frame 13 is horizontally positioned right above the positioning pin 2, the side wall of the hollow frame 13 is fixedly connected with the working end of the lifting component, the grooved pulley 15 is horizontally positioned inside the hollow frame 13, a vertically-arranged rotating shaft 18 is arranged at the center of the grooved pulley 15, the top of the rotating shaft 18 can be rotatably inserted into the top of the hollow frame 13, the bottom of the rotating shaft 18 can rotatably penetrate through two sides of the bottom of the hollow frame 13 and extend downwards, the axis of the rotating shaft 18 is intersected with the axis of the positioning pin 2, a horizontally-arranged rotating disc 19 is arranged at the bottom of the rotating shaft 18, a connecting rod 20 is arranged at one side of the rotating disc 19, one end of the connecting rod 20 is fixedly connected with the side wall of the punching machine 4, four avoidance through holes 21 which are distributed at equal angles, the processing table 1 is provided with a feed opening corresponding to each avoidance through hole 21 one to one, the grooved wheel 15 is provided with four arc-shaped notches 22 which are in a cross-shaped distribution arrangement, the driving dial 16 is horizontally positioned on one side above the grooved wheel 15, the bottom of the driving dial 16 is provided with a dial block 23 which can slide in each arc-shaped notch 22, the grooved wheel 15 is further provided with four rectangular notches 24 which are in a cross-shaped distribution arrangement, the bottom edge of the driving dial 16 is provided with a dial column 25 which can slide in each rectangular notch 24, the dial block 23 is provided with an arc-shaped cutting groove 26 which can avoid the grooved wheel 15, the top center of the driving dial 16 is provided with a vertically-arranged rotary column 27, the top of the rotary column 27 can rotatably penetrate through the two sides of the top of the hollow frame 13 and extend towards the top of the hollow frame 13, the second motor 14 is vertically and fixedly installed at the top of the hollow frame 13, and the output.

The lifting component comprises a fixed support 28 and a screw rod transmission machine 29, the fixed support 28 is vertically and fixedly arranged on one side of the positioning pin 2, the screw rod transmission machine 29 is vertically and fixedly arranged on the fixed support 28, the output end of the screw rod transmission machine 29 is fixedly connected with the side wall of the hollow frame 13, after a brake drum on the positioning pin 2 is positioned, the screw rod transmission machine 29 is started, the hollow frame 13 is driven to move downwards through the screw rod transmission machine 29, the perforating machine 4 is driven to move downwards, the output end of the perforating machine 4 is butted with one of the avoidance through holes 21, and perforating is carried out through the output end of the perforating machine 4, after the brake drum finishes perforating a first hole, the screw rod transmission machine 29 drives the perforating machine 4 to move upwards, the second motor 14 is started, the second motor 14 drives the rotary column 27 to rotate, the rotary column 27 drives the driving drive plate 16 to rotate, the drive plate is rotated, and simultaneously the rotary column 25 moves, the shifting block 23 is moved into another arc-shaped cutting groove 26 on the grooved wheel 15, the rotating shaft 18 and the rotating disc 19 are driven to rotate ninety degrees in this way, the rotating disc 19 drives the perforating machine 4 to rotate ninety degrees along the rotating shaft 18 through the connecting rod 20, the output end of the perforating machine 4 is butted with another avoidance through hole 21, the perforating machine 4 is driven to move downwards through the screw rod transmission machine 29, the perforating machine 4 is used for perforating on the brake drum again, and the repeated movement is carried out in this way until all positions needing perforating on the brake drum are perforated and compounded.

A collecting box 30 is arranged below the processing table 1, and one end of the collecting box 30 is provided with a handle 31.

The both sides of collecting box 30 are equipped with respectively and are the slide rail 32 of level setting, the inside of every slide rail 32 is equipped with respectively can be at the inside gliding slider 17 of every slide rail 32, the one end of every slider respectively with collecting box 30 lateral wall fixed connection, dodge through-hole 21 and every feed opening on the processing platform 1 through every on locating pin 2 and fall into the piece in proper order and collect collecting box 30 in, when needs clearance collecting box 30, outwards pull out collecting box 30 along every slide rail 32 through artifical pulling handle 31, and clear up.

The working principle is as follows: during operation, a brake drum to be processed is placed on the positioning pin 2 through a manipulator or manually, the arranged arc-shaped surface 5 can better place the brake drum on the positioning pin 2, after a single brake drum is placed on the positioning pin 2, the first motor 6 is started, the first motor 6 drives the first threaded rod 7 and the second threaded rod 8 to rotate, because the threads on the first threaded rod 7 and the second threaded rod 8 are reversely arranged, each screw rod sliding block 10 is respectively driven through the first threaded rod 7 and the second threaded rod 8 to clamp the outer wall of the brake drum, when each arc-shaped clamping block moves, each arc-shaped clamping block respectively carries out limiting movement along the guide rod 11 through each guide sleeve 12, when the brake drum on the positioning pin 2 is positioned, the screw rod transmission machine 29 is started, the hollow frame 13 is driven through the screw rod transmission machine 29 to move downwards, and meanwhile, the perforating machine 4 is driven to move downwards, the output end of the perforating machine 4 is butted with one of the avoiding through holes 21, and the perforating machine 4 is used for perforating through the output end of the perforating machine 4, when the brake drum finishes perforating the first hole, the screw rod transmission machine 29 drives the perforating machine 4 to move upwards, the second motor 14 is started, the second motor 14 drives the rotary column 27 to rotate, the rotary column 27 drives the driving dial 16 to rotate, the dial is rotated and simultaneously shifts the column 25 to move along one of the rectangular slots on the grooved pulley 15, the shifting block 23 is moved to the other arc-shaped slot 26 on the grooved pulley 15, in this way, the rotary shaft 18 and the rotary disc 19 are driven to rotate ninety degrees, the rotary disc 19 drives the perforating machine 4 to rotate ninety degrees along the rotary shaft 18 through the connecting rod 20, the output end of the perforating machine 4 is butted with the other avoiding through hole 21, then the screw rod transmission machine 29 drives the perforating machine 4 to move downwards, in this way, the repeated movement is carried out until the positions needing to be punched on the brake drum are punched completely and are compounded, the scraps are sequentially fallen into the collecting box 30 through each avoiding through hole 21 on the positioning pin 2 and each feed opening on the processing table 1 to be collected, and when the collecting box 30 needs to be cleaned, the collecting box 30 is pulled out along each sliding rail 32 through the manual pulling handle 31 and is cleaned.

It should be understood that the above-described embodiments are merely preferred embodiments of the invention and the technical principles applied thereto. It will be understood by those skilled in the art that various modifications, equivalents, changes, and the like can be made to the present invention. However, such variations are within the scope of the invention as long as they do not depart from the spirit of the invention. In addition, certain terms used in the specification and claims of the present application are not limiting, but are used merely for convenience of description.

Claims

1. The utility model provides an automobile brake drum drilling equipment which characterized in that: including processing platform (1), the top of processing platform (1) is equipped with locating pin (2) that are used for placing the brake drum, the both sides of locating pin (2) are equipped with arc anchor clamps (3) that can conflict with the brake drum respectively, one side of locating pin (2) is equipped with presss from both sides tight drive assembly, the work end that presss from both sides tight drive assembly respectively with one side fixed connection of every arc anchor clamps (3), the top of locating pin (2) is equipped with the rotatory subassembly that punches, the output of the rotatory subassembly that punches is equipped with puncher (4) that are vertical setting, the output of puncher (4) extends the setting to the direction of locating pin (2), one side of the rotatory subassembly that punches is equipped with lifting unit, lifting unit's work end and the rotatory inside stockholder who punches the subassembly are connected, lifting unit's bottom and the mesa fixed connection of processing platform.

2. The punching device for the automobile brake drum according to claim 1, wherein: the locating pin (2) is of a cylindrical structure, and an arc-shaped surface (5) is arranged at the edge of the top of the locating pin (2).

3. The punching device for the automobile brake drum according to claim 2, wherein: the clamping driving assembly comprises a first motor (6), a first threaded rod (7), a second threaded rod (8) and two bearing seats (9), the two bearing seats (9) are vertically positioned at two sides of the positioning pin (2) respectively, the first threaded rod (7) and the second threaded rod (8) are arranged between the two bearing seats (9) in a linear distribution manner, one end of the first threaded rod (7) is fixedly connected with one end of the second threaded rod (8), the other ends of the first threaded rod (7) and the second threaded rod (8) are rotatably inserted into an inner ring of each bearing seat (9) respectively, threads on the first threaded rod (7) and the second threaded rod (8) are arranged in a reverse direction, the first motor (6) is horizontally and fixedly installed on the outer wall of one bearing seat (9), the output end of the first motor (6) is fixedly connected with one end of the first threaded rod (7), the first threaded rod (7) and the second threaded rod (8) are respectively provided with a screw rod sliding block (10), and one end of each screw rod sliding block (10) is fixedly connected with one side of each arc-shaped clamping block.

4. The punching device for the automobile brake drum according to claim 3, wherein: one side of the positioning pin (2) far away from the clamping driving assembly is provided with a guide rod (11) which is horizontally arranged, two ends of the guide rod (11) are respectively fixedly connected with the table top of the processing table (1) through a fixing seat, guide sleeves (12) which are in one-to-one correspondence with each arc-shaped clamping block are arranged on the guide rod (11), and one end of each guide sleeve (12) is respectively fixedly connected with one side of each arc-shaped clamping block.

5. The punching device for the automobile brake drum according to claim 4, wherein: the rotary punching component comprises a hollow frame (13), a second motor (14), a grooved wheel (15), a driving drive plate (16) and a cylindrical pin (17), the hollow frame (13) is horizontally positioned right above the positioning pin (2), the side wall of the hollow frame (13) is fixedly connected with the working end of the lifting component, the grooved wheel (15) is horizontally positioned in the hollow frame (13), a vertically-arranged rotating shaft (18) is arranged at the center of the grooved wheel (15), the top of the rotating shaft (18) can be rotatably inserted into the top of the hollow frame (13), the bottom of the rotating shaft (18) can rotatably penetrate through two sides of the bottom of the hollow frame (13) to extend downwards, the axis of the rotating shaft (18) is intersected with the axis of the positioning pin (2), a horizontally-arranged rotary disc (19) is arranged at the bottom of the rotating shaft (18), and a connecting rod (20) is arranged on one side of the rotary disc (19), one end of a connecting rod (20) is fixedly connected with the side wall of the perforating machine (4), four equiangular distribution avoiding through holes (21) for avoiding the insertion of the output end of the perforating machine (4) are arranged on the positioning pin (2), a feed opening which is in one-to-one correspondence with each avoiding through hole (21) is arranged on the processing table (1), four arc-shaped notches (22) which are distributed and arranged in a cross shape are arranged on the grooved wheel (15), an active drive plate (16) is horizontally arranged at one side above the grooved wheel (15), a drive block (23) which can slide in each arc-shaped notch (22) is arranged at the bottom of the active drive plate (16), four rectangular notches (24) which are distributed and arranged in a cross shape are also arranged on the grooved wheel (15), a drive column (25) which can slide in each rectangular notch (24) is arranged at the edge of the bottom of the active drive plate (16), an arc-shaped cutting groove (, the top center department of initiative driver plate (16) is equipped with and is vertical rotary column (27) that set up, and the top of rotary column (27) can be the pivoted and pass the top both sides of hollow frame (13) and extend to the top of hollow frame (13), and second motor (14) are vertical fixed mounting at the top of hollow frame (13), the output of second motor (14) and the top fixed connection of rotary column (27).

6. The automobile brake drum punching device according to claim 5, wherein: the lifting assembly comprises a fixed support (28) and a screw rod transmission machine (29), the fixed support (28) is vertically fixedly installed on one side of the positioning pin (2), the screw rod transmission machine (29) is vertically fixedly installed on the fixed support (28), and the output end of the screw rod transmission machine (29) is fixedly connected with the side wall of the hollow frame (13).

7. The punching device for the automobile brake drum according to claim 6, wherein: a collecting box (30) is arranged below the processing table (1), and a handle (31) is arranged at one end of the collecting box (30).

8. The punching device for the automobile brake drum according to claim 7, wherein: the two sides of the collecting box (30) are respectively provided with a sliding rail (32) which is horizontally arranged, the inside of each sliding rail (32) is respectively provided with a sliding block (17) which can slide inside each sliding rail (32), and one end of each sliding block is respectively fixedly connected with the side wall of the collecting box (30).