CN112588943B - Automobile front protective cover punching vibration-damping punching mechanism and vibration-damping method - Google Patents

Abstract

The invention discloses a vibration damping device and a vibration damping method for a front protective cover of an automobile. The punching machine comprises a punching rack body, a punching mechanism fixedly arranged on the punching rack body, a fixing mechanism arranged on one side of the punching mechanism, a plurality of groups of transmission mechanisms arranged on two sides of the punching rack body, an image detection device arranged at the punching mechanism, and a feeding and discharging clamp arranged on two sides of the transmission mechanisms; the punching mechanism, the feeding and discharging clamp and the image detection device are electrically connected with the controller through electric wires; and a vibration damping device is arranged on one side of the fixing mechanism. The fixing mechanism special for the curved surface cover body structure is arranged to avoid unbalance and deformation of the protective cover caused by punching force in the punching process; meanwhile, the inflated air bag is filled on one side of the curved surface of the workpiece, when the punching force extends downwards and is transmitted, the air bag directly acts on the air bag, the reaction force is provided after the air bag is stressed to counteract the punching force on the curved surface, the vibration reduction effect is achieved, and the deformation of the curved surface caused by the impact force of the opening at the edge is avoided.

Description

Automobile front protective cover punching vibration-damping punching mechanism and vibration-damping method

Technical Field

The invention belongs to the field of automobile accessories, and particularly relates to a punching mechanism and a method for a front protective cover of an automobile.

Background

The automobile front protective cover is of a U-shaped curved surface cover body structure, and a plurality of mounting holes are required to be formed in the edge of the front protective cover in the production process so as to connect a guide plate, a heat dissipation plate, an engine cover and a front headlamp which are arranged in the front of the front protective cover; most of the existing punching processes for the front protective cover of the automobile adopt a punching die to perform die punching operation on automobile parts, but the punching force in the vertical direction in the punching process easily causes local deformation of a U-shaped curved surface cover body structure, so that the qualification rate of products is influenced.

Disclosure of Invention

The purpose of the invention is as follows: the utility model provides a mechanism and a method for punching a front protective cover of an automobile in a vibration-damping manner, which are used for solving the problems in the prior art.

The technical scheme is as follows: the utility model provides a mechanism of punching a hole and damping and punching a hole of safety cover before car, includes:

the punching machine comprises a punching rack body, a punching mechanism fixedly arranged on the punching rack body, a fixing mechanism arranged on one side of the punching mechanism, a plurality of groups of transmission mechanisms arranged on two sides of the punching rack body, an image detection device arranged at the punching mechanism, and a feeding and discharging clamp arranged on two sides of the transmission mechanisms; the punching mechanism, the feeding and discharging clamp and the image detection device are electrically connected with the controller through electric wires; and a vibration damping device is arranged on one side of the fixing mechanism.

In a further embodiment, the securing mechanism comprises: the punching machine comprises a punching rack body, numerical control sliding tables, Z-axis lifting seats and clamping seats, wherein the numerical control sliding tables are arranged on two sides of the punching rack body; the length of the clamping seat is equal to the width of the punching rack body; the cassette includes thereon: fixed mounting is at a plurality of group's support piece at Z axle lift seat top to and set up the spacing subassembly on support piece, spacing subassembly includes: the device comprises a first limiting block fixedly arranged at the top of a support piece, a micro cylinder fixedly connected to the support piece and a second limiting block arranged at one end of the micro cylinder in a transmission manner, wherein the corresponding side surfaces of the first limiting block and the second limiting block are arc surfaces; and an elastic gasket is arranged at the bottom of the first limiting block.

In a further embodiment, the vibration damping device comprises: the punching machine comprises a driving cylinder fixedly mounted on a punching rack body, a rack fixedly sleeved on a cylinder piston rod, a rotary shaft seat fixedly mounted on the punching rack, a transmission shaft inserted on the rotary shaft seat, and a plurality of groups of airbag supporting claws sleeved on the transmission shaft; the transmission shaft is further sleeved with a transmission gear matched with the rack, so that the driving cylinder is driven to drive the transmission gear to rotate in the process of driving the rack to move up and down, and then the transmission gear drives a plurality of groups of air bag supporting claws to synchronously rotate in the process of rotating; inflatable bags are embedded in the plurality of groups of air bag supporting claws, each inflatable bag is provided with an inflation inlet, and the inflation inlet is communicated with an inflation pump through an inflation tube; the plurality of groups of air bag supporting claws can be designed according to the curvature of the curved surface of the protective cover.

In a further embodiment, the punching mechanism comprises: the first sliding rail assembly is symmetrically arranged on the punching rack body, the adjusting support is arranged on the first sliding rail assembly in a transmission mode, and the punching die assembly is fixedly arranged on the adjusting support.

In a further embodiment, the first slide rail assembly comprises: the punching machine comprises a punching rack body, a first lead screw assembly, sliding rails and a sliding block, wherein the first lead screw assembly is fixedly arranged on the punching rack body; one end of the first lead screw component is in transmission connection with a first servo motor set, the adjusting support is fixedly connected to the top of the sliding block and in transmission connection with the first lead screw component, and then power of the first servo motor set passes through the first lead screw set to drive the adjusting support to move on the sliding rail.

In a further embodiment, the adjustment mount comprises: the device comprises a mounting plate fixedly mounted at the top of a sliding block, a swing mechanism fixedly mounted on the mounting plate, a support base arranged on the swing mechanism, and a pressure cylinder inserted at the top of the support base; the top of the supporting base is provided with a through hole through which a piston rod of the pressure cylinder can be inserted, and the other end of the piston rod is fixedly connected with the punching die assembly.

In a further embodiment, the swing mechanism comprises: the device comprises an arc-shaped sliding rail fixedly installed on an installation plate, a pulley clamped in the arc-shaped sliding rail, a connecting arm fixedly connected to one end of the pulley, and a rotating motor fixedly connected to the other end of the connecting arm; the other side of the connecting arm is fixedly provided with a supporting base; and then the power of rotating electrical machines drives the swinging boom to move on the arc slide rail, and then drives the support pedestal to carry out the adjustment of angle.

In a further embodiment, the punching die assembly comprises an upper pressing block fixedly connected to the piston rod, a support plate inserted on the upper pressing block, and a lower die block fixedly mounted on the support base and symmetrically mounted with the upper pressing block.

In a further embodiment, the bottom of the punching rack body is also provided with a burr removing mechanism; burr clearance mechanism fixed mounting is in one side of extension board, burr clearance mechanism includes: the polishing brush comprises a first lead screw assembly fixedly arranged on the support plate, a first rotating seat arranged on the first lead screw assembly in a transmission manner, and a polishing brush inserted on the first rotating seat; the polishing brush is of a hollow structure; the polishing brush is provided with a plurality of air holes on the surface, the polishing brush is provided with a spiral blade, the edge surface of the spiral blade is a frosted surface, and the surface of the spiral blade is a smooth surface; the other end of the polishing brush is communicated with the gas generating device through a gas pipe.

In a further embodiment, the following working steps are included:

s1, conveying the automobile front protection cover workpiece to the punching rack body through the conveying mechanism to wait for processing;

s2, clamping the workpiece after the workpiece is detected by the feeding and discharging clamp, placing the clamped workpiece on a clamping seat of the fixing mechanism, and driving a driving cylinder to open to drive a piston rod to move so as to drive a rack to adjust the inclination angles of a plurality of groups of air bag supporting claws;

s3, starting an image detection device to monitor the machined workpiece in real time, and controlling the numerical control sliding table to drive the clamping seat in the fixing mechanism to move by the controller so as to drive the workpiece to move back and forth relative to the punching mechanism;

s4, the numerical control sliding table drives the workpiece to move to a designated position and then stops, and a rotating motor in the swinging mechanism drives the connecting arm to rotate according to the position data of the workpiece detected by the image device, so as to drive the adjusting support to carry out angle adjustment and further drive the punching die assembly to carry out angle adjustment;

s5, according to the width of the workpiece, the controller controls a first servo motor set in the first lead screw assembly to be started, so that the adjusting support is driven to move relatively on the first slide rail assembly, the controller controls the pressure cylinder to drive the piston rod to move after the punching die assembly and the edge of the workpiece opening are accurately positioned, the upper pressing block connected to the piston rod drives the upper pressing block to move downwards to open the opening, meanwhile, the inflating device inflates the air bag supporting claw through the inflating port, and further, the gap between the air bag supporting claw and the workpiece is filled; further damping the impact force of the punched hole;

s6, after the punching is finished, the controller controls the polishing brush in the burr removing mechanism to reciprocate on the second lead screw component, the polishing brush rotates in the movement process, so that the polishing surface of the polishing brush polishes the bottom of the pore slot to remove burrs, and the gas generating device is started to absorb the polished burrs while polishing;

and S7, clamping the processed workpiece to a transmission mechanism by the feeding and discharging clamp after the processing is finished, and carrying out production of the next procedure.

Has the advantages that: compared with the prior art, the invention has the following advantages:

1. the fixing mechanism special for the curved surface cover body structure is arranged, so that the phenomenon that the machining quality of a workpiece is influenced due to unbalance and deformation of the protective cover caused by punching force in the punching process is avoided; the gasbag that aerifys simultaneously fills in curved surface one side of work piece, when punching press downwardly extending transmission, punching press force direct action on the gasbag, after the gasbag atress provides reaction force and then the effect offsets punching press force to the curved surface, finally plays the damping effect, and then avoids the impact force of cover body edge trompil to cause the emergence of cover body curved surface to warp.

2. Can carry out the burr clearance effect through burr clearance mechanism to the hole groove after the punching press, the burr that the frosting face of rotatory brush ground drops on the smooth surface, and then gets into among the gas generator through the gas pocket to accomplish the deburring and the dust removal operation of counterpunching mechanism.

3. The first slide rail assembly, the first lead screw assembly and the first servo motor set are arranged, and the adjusting support can be driven to adjust the water direction, so that the punching mechanism can adapt to the machining of workpieces with different diameters; the rotary motor in the swing mechanism drives the adjusting support and the punching die assembly to change curves and linear tracks, the punching mechanism can carry out continuous flexible processing according to the edge of the front protective cover of the automobile, the process of later-stage manual hole opening is omitted, and the processing efficiency is improved.

Drawings

FIG. 1 is a schematic structural diagram of a punching vibration-damping punching mechanism for a front protective cover of an automobile.

Fig. 2 is a top view of the automobile front protective cover punching mechanism production line.

Fig. 3 is a schematic structural diagram of the card holder of the present invention.

FIG. 4 is a schematic view of the mounting of the air bag pallet of the present invention to a workpiece.

Fig. 5 is a schematic structural view of the fixing mechanism and the punching mechanism of the present invention.

Figure 6 is a schematic view of the mounting of a workpiece of the present invention on a punching mechanism.

Fig. 7 is a schematic structural view of the swing mechanism of the present invention.

Fig. 8 is a schematic view of the structure of the deburring mechanism of the present invention.

FIG. 9 is a schematic view of the construction of the polishing brush of the present invention.

The reference signs are: the punching machine comprises a punching machine frame body 1, a punching mechanism 2, a first slide rail assembly 20, a first lead screw assembly 200, a first servo motor set 201, an adjusting support 21, a mounting plate 210, a swinging mechanism 211, an arc-shaped slide rail 2110, a connecting arm 2111, a rotating motor 2112, a supporting base 212, a pressure cylinder 213, a punching die assembly 214, an upper die pressing block 2140, a supporting plate 2141, a lower die block 2142, a fixing mechanism 3, a Z-axis lifting seat 30, a clamping seat 31, a first limiting block 310, a supporting part 311, a micro-cylinder 312, a second limiting block 313, a vibration damping device 32, a driving cylinder 320, a cylinder piston rod 321, a rack 322, a rotating shaft seat 323, a transmission shaft 324, a plurality of groups of air bag supporting claws 325, a transmission gear 326, an air charging hole 327, a transmission mechanism 4, an upper and lower material clamp 5, a rotating support 50, a mechanical arm 51, a clamp 52, a burr removing mechanism 6, a second lead screw assembly 60, a second rotating seat 61, a polishing brush 62, a swing joint 201, a polishing brush, Air hole 63, helical blade 64, frosting surface 65, smooth surface 66 and workpiece 7.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring the invention.

The automobile front protective cover is of a U-shaped curved surface cover body structure, and a plurality of mounting holes are required to be formed in the edge of the front protective cover in the production process so as to connect a guide plate, a heat dissipation plate, an engine cover and a front headlamp which are arranged in the front of the front protective cover; the applicant finds that most of existing punching processes for automobile front protective covers adopt a punching die to perform die punching operation on automobile parts, but the punching force in the vertical direction in the punching process is easy to cause local deformation of a U-shaped curved surface cover body structure, so that the qualification rate of products is influenced.

As shown in fig. 1 to 9, the punching mechanism for punching the front protecting cover of the automobile for reducing vibration comprises: the punching machine comprises a punching machine frame body 1, a punching mechanism 2, a first slide rail assembly 20, a first lead screw assembly 200, a first servo motor group 201, an adjusting support 21, a mounting plate 210, a swinging mechanism 211, an arc-shaped slide rail 2110, a connecting arm 2111, a rotating motor 2112, a supporting base 212, a press cylinder 213, a punching die assembly 214, an upper die pressing block 2140, a supporting plate 2141, a lower die block 2142, a fixing mechanism 3, a Z-axis lifting seat 30, a clamping seat 31, a first limiting block 310, a supporting piece 311, a micro-cylinder 312, a second limiting block 313, a vibration damping device 32, a driving cylinder 320, a cylinder piston rod 321, a rack 322, a rotating shaft seat 323, a transmission shaft 324, a plurality of groups of air bag supporting claws 325, a transmission gear 326, an inflation inlet 327, a numerical control sliding table 33, a transmission mechanism 4, a feeding and discharging clamp 5, a rotating support 50, a mechanical arm 51, a clamp 52, a burr removing mechanism 6, a second lead screw assembly 60, a second rotating seat 61, a swing block 327, a swing block 32, a swing mechanism, Polishing brush 62, air hole 63, helical blade 64, frosting surface 65, smooth surface 66 and workpiece 7.

The punching machine comprises a punching rack body 1, a fixing mechanism 3, a plurality of groups of conveying mechanisms 4, a feeding and discharging clamp 5, a conveying mechanism 2, a feeding and discharging clamp and a clamping mechanism, wherein the punching rack body 1 is fixedly arranged on the punching mechanism 2, the fixing mechanism 3 is fixedly arranged on one side of the punching rack and limits a workpiece 7, the conveying mechanisms 4 are arranged on two sides of the punching rack body 1, and the feeding and discharging clamp 5 is fixedly arranged on one side of the conveying mechanisms 4 and can further clamp the workpiece 7 on the conveying mechanisms 4; an image detection device is provided at the top of the punching mechanism 2 to monitor the punching accuracy of the workpiece 7. The punching mechanism 2, the feeding and discharging clamp 5 and the image detection device are electrically connected with the controller through electric wires.

The cross section of the front protective cover of the automobile is U-shaped, so that a punch of a stamping die needs to be replaced in the process of processing the edge of the front protective cover, the stamping die can process along the edge curve of the front protective cover of the automobile, and the processing is time-consuming and labor-consuming; if necessary, a worker needs to open a hole, and the punching mechanism 2 comprises: the first slide rail assembly 20 is symmetrically arranged on the punching machine frame body 1, the adjusting support 21 is arranged on the first slide rail assembly 20 in a transmission mode, and the punching die assembly 214 is fixedly arranged on the adjusting support 21. And further can realize the processing transformation of flexible transformation on linear and curved tracks.

The edge of the front protection cover of the automobile is processed by punching through the punching die assembly 214, when the punching force applied to the automobile protection cover is transmitted downwards along the automobile protection cover, the curved surface of the front protection cover of the automobile is acted, so that the stress of the curved surface is uneven, the vibration force generated by punching can drive the whole protection cover to vibrate, further unbalance is generated under the condition that the whole protection cover is unevenly stressed, and the punching precision is influenced, so that the fixing mechanism 3 is specially invented for the curved surface cover body;

the fixing mechanism 3 includes: the punching machine comprises numerical control sliding tables arranged on two sides of a punching machine frame body 1, a Z-axis lifting seat 30 fixedly arranged on the numerical control sliding tables, and clamping seats 31 fixedly arranged on the Z-axis lifting seat 30; the length of the clamping seat 31 is equal to the width of the punching rack body 1; the numerical control sliding table is not shown in the drawing, is fixedly arranged at the bottom of the punching rack, and drives the Z-axis lifting seat 30 to perform linear motion in the horizontal direction through a servo motor; z axle lift seat 30 adopts hydraulic cylinder, hydraulic cylinder's output and cassette 31 fixed connection, and then drive the whole elevating movement that realizes of cassette 31, can drive work piece 7 through numerical control slip table and Z axle lift seat 30 and realize two axial adjustments, and then link with punching press mechanism in the course of working, thereby realize that punching press work piece 7 carries out a plurality of axial nimble switchings, also make things convenient for the polishing brush 62 in later stage to work piece 7 two-sided clear process when Z axle lift seat 30 drives cassette 31 up-and-down motion simultaneously.

The card seat 31 includes thereon: fixed mounting is at a plurality of groups support piece 311 at Z axle lift seat 30 top to and set up the spacing subassembly on support piece 311, spacing subassembly includes: the device comprises a first limiting block 310 fixedly mounted at the top of a support part 311, a micro cylinder 312 fixedly connected to the support part 311, and a second limiting block 313 mounted at one end of the micro cylinder 312 in a transmission manner, wherein the corresponding side surfaces of the first limiting block 310 and the second limiting block 313 are arc-shaped surfaces; the bottom of the first limiting block 310 is provided with an elastic gasket. And then the power of the micro-cylinder 312 drives the second limiting block 313 to perform reciprocating motion, so that the distance between the first limiting block 310 and the second limiting block 313 is changed, and the focal coefficient of the extension line of the arc-shaped surface of the first limiting block 310 and the second limiting block 313 is changed, so that the micro-cylinder is suitable for tightening and fixing protective covers with different curvatures. The elastic gasket can increase the skid resistance of the workpiece 7 and simultaneously perform the vibration damping function

The vibration damping device 32 includes: the punching machine comprises a driving air cylinder 320 fixedly arranged on a punching machine frame body 1, a rack 322 fixedly sleeved on an air cylinder piston rod 321, an upper rotating shaft seat 323 fixedly arranged on the punching machine frame, a transmission shaft 324 penetrated on the rotating shaft seat 323, and a plurality of groups of air bag supporting claws 325 sleeved on the transmission shaft 324; a transmission gear 326 matched with the rack 322 is further sleeved on the transmission shaft 324, so that the cylinder 320 is driven to drive the rack 322 to rotate in the process of moving up and down, and the transmission gear 326 drives a plurality of groups of air bag supporting claws 325 to synchronously rotate in the process of rotating; the groups of air bag supporting claws 325 are internally embedded with air bags, the air bags are provided with inflation ports 327, and the inflation ports 327 are communicated with an inflation pump through inflation tubes; the plurality of sets of air bag support claws 325 may be designed according to the curvature of the curved surface of the protective cover. And then compressed air filled in the inflator pump can be attached to the curved surface of the workpiece 7 before punching, referring to fig. 4, the inflated airbag is filled at one side of the curved surface of the workpiece 7, when the punching force extends downwards and is transmitted, the inflated airbag directly acts on the airbag, the airbag provides attack force after being stressed to act on the curved surface to offset the punching force, and further the deformation of the curved surface caused by the impact force of the edge opening is avoided.

The first sliding rail assemblies 20 are symmetrically arranged on the punching rack body 1; the first slide rail assembly 20 includes: the punching machine comprises a first lead screw assembly 200 fixedly installed on a punching rack body 1, slide rails arranged on two sides of the lead screw assembly, and slide blocks clamped on the slide rails; first servo motor group 201 is connected in the transmission of the one end of first lead screw subassembly 200, adjust support 21 fixed connection and just be connected with the transmission of first lead screw subassembly 200 at the top of slider, and then the power of first servo motor group 201 passes through first lead screw group and then drives and adjust support 21 and remove on the slide rail. Through setting up first slide rail set 20, first lead screw subassembly 200, first servo motor group 201, can drive and adjust support 21 and carry out the adjustment of water direction for the mechanism 2 that punches a hole can adapt to the processing of the work piece 7 of different diameters.

The adjusting mount 21 includes: a mounting plate 210 fixedly mounted on the top of the slider, a swing mechanism 211 fixedly mounted on the mounting plate 210, a support base 212 arranged on the swing mechanism 211, and a press cylinder 213 inserted on the top of the support base 212; the top of the supporting base 212 is opened with a through hole for inserting the piston rod of the pressure cylinder 213, and the other end of the piston rod is fixedly connected with the punching die assembly 214. After the cylinder 213 is opened, the piston rod of the cylinder 213 is driven to move up and down through the opening, and the upper punch die assembly 214 connected to the piston rod is driven to perform the punching operation.

The swing mechanism 211 includes: an arc-shaped sliding rail 2110 fixedly installed on the installation plate 210, a pulley clamped in the arc-shaped sliding rail 2110, a connecting arm 2111 fixedly connected to one end of the pulley, and a rotating motor 2112 fixedly connected to the other end of the connecting arm 2111; the other side of the connecting arm 2111 is fixedly supported by the base 212; then the power of the rotating motor 2112 drives the rotating arm to move on the arc-shaped slide rail 2110, so as to drive the supporting base 212 to adjust the angle, and finally, the curve track of the stamping die assembly is switched.

The punching die assembly 214 includes an upper pressing block 2140 fixedly connected to the piston rod, a support plate 2141 inserted into the upper pressing block 2140, and a lower pressing block 2142 fixedly mounted on the support base 212 and symmetrically mounted to the upper pressing block 2140; the upper die pressing block 2140 is fixedly provided with a punch with a hole; to avoid debris remaining on lower die block 2142 after punching; the mounting plate 210 is inclined at a certain angle relative to the punching machine frame body 1, so that metal fragments which are left on the lower die after punching naturally slide down.

A few burrs are probably arranged on the edge of the orifice after the hole is opened; the bottom of the punching rack body 1 is also provided with a burr removing mechanism 6; burr removal mechanism 6 fixed mounting is in one side of extension board 2141, burr removal mechanism 6 includes: a second screw assembly 60 fixedly mounted on the support plate 2141, a second rotating base 61 drivingly mounted on the second screw assembly 60, and a polishing brush 62 inserted on the second rotating base 61; the polishing brush 62 is a hollow structure; the surface of the polishing brush 62 is provided with a plurality of air holes 63, the polishing brush 62 is provided with a spiral blade 64, the edge surface of the spiral blade 64 is a frosted surface 65, and the surface of the spiral blade 64 is a smooth surface 66; the other end of the polishing brush 62 is communicated with a gas generating device through a gas pipe; a driving motor is arranged in the second rotating seat 61, and then the polishing brush 62 is driven to rotate; and then gas generator can breathe in and the gassing through polish brush 62, and gas generator bleeds through the trachea before polishing and absorbs the metal piece on lower module 2142, and second roating seat 61 drives polish brush 62 rotatory simultaneously, thereby frosting 65 can be polished to the remaining burr after punching a hole, and the metal piece that produces at the in-process of polishing gets into gas pocket 63 through smooth surface 66 in, and then can carry out the dust removal effect to the piece that punches a hole once more.

Go up unloading anchor clamps 5 includes: a rotary support 50, a robot arm 51 fixedly mounted on the rotary support 50, and a gripper 52 fixedly attached to the other end of the robot arm 51. The loading and unloading process of the machined workpiece 7 can be carried out through the loading and unloading clamp 5, and then unmanned automatic production is realized.

The working principle is as follows:

conveying the automobile front protective cover workpiece 7 to the punching rack body 1 through the conveying mechanism 4 to wait for processing; after the feeding and discharging clamp 5 detects the workpiece 7, clamping the workpiece 7, placing the clamped workpiece 7 on the clamping seat 31 of the fixing mechanism 3, and driving the driving cylinder 320 to open to drive the piston rod to move so as to drive the rack 322 to adjust the inclination angles of the groups of air bag supporting claws 325; the image detection device is started, so that the machined workpiece 7 is monitored in real time, and the controller controls the numerical control sliding table to drive the clamping seat 31 in the fixing mechanism 3 to move, so that the workpiece 7 is driven to move back and forth relative to the punching mechanism 2; the numerical control sliding table drives the workpiece 7 to move to a specified position and then stops, and the rotating motor 2112 in the swinging mechanism 211 drives the connecting arm 2111 to rotate according to the position data of the workpiece 7 detected by the image device, so as to drive the adjusting support 21 to carry out angle adjustment, and further drive the punching die assembly 214 to carry out angle adjustment; according to the width of the workpiece 7, the controller controls the first servo motor set 201 in the first lead screw assembly 200 to be opened, so as to drive the adjusting support 21 to move relatively on the first slide rail assembly 20, so that after the punching die assembly 214 and the edge of the opening of the workpiece 7 are accurately positioned, the controller controls the hydraulic cylinder 213 to drive the piston rod to move, an upper press block connected to the piston rod drives an upper press block to move downwards to open the opening, and meanwhile, the inflating device inflates the air bag supporting claw through the inflating port 327, so as to fill a gap between the air bag supporting claw and the workpiece 7; further sharing the punching force of the punching holes; after punching is finished, the controller controls the polishing brush 62 in the burr removing mechanism 6 to reciprocate on the second lead screw component 60, and the polishing brush 62 rotates in the movement process, so that the polishing surface 65 of the polishing brush 62 polishes the bottom of the pore groove to remove burrs, and the gas generating device is started to absorb the polished burrs during polishing; and after the machining is finished, the feeding and discharging clamp 5 clamps the machined workpiece 7 to the transmission mechanism 4 for production in the next working procedure.

According to the invention, the first slide rail assembly 20, the first lead screw assembly 200 and the first servo motor set 201 are arranged, and the adjusting support 21 can be driven to adjust the water direction, so that the punching mechanism 2 can adapt to the processing of workpieces 7 with different diameters; the rotary motor 2112 in the swing mechanism 211 drives the adjusting support 21 and the punching die assembly 214 to change the curve and the straight line track, and flexible processing is carried out according to the edge of the front protective cover of the automobile, so that the later manual processing procedure is omitted; secondly can carry out the burr clearance effect to the hole groove after the punching press through burr clearance mechanism 6, the burr that the frosting 65 of rotatory brush ground drops on smooth surface 66, and then gets into among the gas generator through gas pocket 63 to accomplish the dust removal operation of counterpunching mechanism 2.

The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the embodiments, and various equivalent changes may be made to the technical solution of the present invention within the technical idea of the present invention, and these equivalent changes are all within the protection scope of the present invention.

Claims (6)

1. The utility model provides a safety cover damping mechanism that punches a hole before car which characterized in that includes:

the punching machine comprises a punching rack body, a punching mechanism fixedly arranged on the punching rack body, a fixing mechanism arranged on one side of the punching mechanism, a plurality of groups of transmission mechanisms arranged on two sides of the punching rack body, an image detection device arranged at the punching mechanism, and a feeding and discharging clamp arranged on two sides of the transmission mechanisms; the punching mechanism, the feeding and discharging clamp and the image detection device are electrically connected with the controller through electric wires; a vibration damping device is arranged on one side of the fixing mechanism;

the fixing mechanism includes: the punching machine comprises a numerical control sliding table, a Z-axis lifting seat and a clamping seat, wherein the numerical control sliding table is arranged on one side of a punching machine frame body; the length of the clamping seat is equal to the width of the punching rack body; the cassette includes thereon: fixed mounting is at a plurality of group's support piece at Z axle lift seat top to and set up the spacing subassembly on support piece, spacing subassembly includes: the device comprises a first limiting block fixedly arranged at the top of a support piece, a micro cylinder fixedly connected to the support piece and a second limiting block arranged at one end of the micro cylinder in a transmission manner, wherein the corresponding side surfaces of the first limiting block and the second limiting block are arc surfaces; the bottom of the first limiting block is provided with an elastic gasket;

the vibration damping device includes: the punching machine comprises a driving cylinder fixedly mounted on a punching rack body, a rack fixedly sleeved on a cylinder piston rod, a rotary shaft seat fixedly mounted on the punching rack, a transmission shaft inserted on the rotary shaft seat, and a plurality of groups of airbag supporting claws sleeved on the transmission shaft; the transmission shaft is further sleeved with a transmission gear matched with the rack, so that the transmission gear is driven to rotate in the process of driving the cylinder to drive the rack to move up and down, and the groups of airbag supporting claws are driven to synchronously rotate in the process of driving the transmission gear to rotate; inflatable bags are embedded in the plurality of groups of air bag supporting claws, each inflatable bag is provided with an inflation inlet, and the inflation inlet is communicated with an inflation pump through an inflation tube; the groups of air bag supporting claws can be designed according to the curvature of the curved surface of the protective cover;

the punching mechanism includes: the punching die comprises a first slide rail assembly, an adjusting support and a punching die assembly, wherein the first slide rail assembly is symmetrically arranged on a punching rack body;

the first slide rail assembly includes: the punching machine comprises a first lead screw assembly, sliding rails and a sliding block, wherein the first lead screw assembly is fixedly arranged on a punching machine frame body; one end of the first lead screw component is in transmission connection with a first servo motor set, the adjusting support is fixedly connected to the top of the sliding block and in transmission connection with the first lead screw component, and then power of the first servo motor set passes through the first lead screw set to drive the adjusting support to move on the sliding rail.

2. The automotive front boot punching, vibration damping and punching mechanism according to claim 1, wherein the adjusting support comprises: the device comprises a mounting plate fixedly mounted at the top of a sliding block, a swing mechanism fixedly mounted on the mounting plate, a support base arranged on the swing mechanism, and a pressure cylinder inserted at the top of the support base; the top of the supporting base is provided with a through hole through which a piston rod of the pressure cylinder can be inserted, and the other end of the piston rod is fixedly connected with the punching die assembly.

3. The punching mechanism for the front protecting cover of the automobile as claimed in claim 2, wherein the swinging mechanism comprises: the device comprises an arc-shaped sliding rail fixedly arranged on an installation plate, a pulley clamped in the arc-shaped sliding rail, a connecting arm fixedly connected to one end of the pulley, and a rotating motor fixedly connected to the other end of the connecting arm; the other side of the connecting arm is fixedly provided with a supporting base; and then the power of rotating electrical machines drives the linking arm to move on the arc slide rail, and then drives the support base to carry out the adjustment of angle.

4. The mechanism of claim 3, wherein the punching die assembly comprises an upper pressing block fixedly connected to the piston rod, a support plate inserted through the upper pressing block, and a lower die block fixedly mounted on the support base and symmetrically mounted with the upper pressing block.

5. The automobile front protective cover punching vibration-damping punching mechanism is characterized in that a burr removing mechanism is further arranged at the bottom of the punching rack body; burr clearance mechanism fixed mounting is in one side of extension board, burr clearance mechanism includes: the polishing brush comprises a first lead screw assembly fixedly arranged on the support plate, a first rotating seat arranged on the first lead screw assembly in a transmission manner, and a polishing brush inserted on the first rotating seat; the polishing brush is of a hollow structure; the polishing brush is provided with a plurality of air holes on the surface, the polishing brush is provided with a spiral blade, the edge surface of the spiral blade is a frosted surface, and the surface of the spiral blade is a smooth surface; one end of the polishing brush is communicated with the gas generating device through a gas pipe.

6. The method for damping the vibration of the punching hole and the vibration-damping punching mechanism of the front protective cover of the automobile as claimed in claim 5 is characterized by comprising the following working steps:

s1, conveying the automobile front protection cover workpiece to the punching rack body through the conveying mechanism to wait for processing;

s2, clamping the workpiece after the workpiece is detected by the feeding and discharging clamp, placing the clamped workpiece on a clamping seat of the fixing mechanism, and driving a driving cylinder to open to drive a piston rod to move so as to drive a rack to adjust the inclination angles of a plurality of groups of air bag supporting claws;

s3, starting an image detection device to monitor the machined workpiece in real time, and controlling the numerical control sliding table to drive the clamping seat in the fixing mechanism to move by the controller so as to drive the workpiece to move back and forth relative to the punching mechanism;

s4, the numerical control sliding table drives the workpiece to move to a designated position and then stops, and a rotating motor in the swinging mechanism drives the connecting arm to rotate according to the position data of the workpiece detected by the image device, so as to drive the adjusting support to carry out angle adjustment and further drive the punching die assembly to carry out angle adjustment;

s5, according to the width of the workpiece, the controller controls a first servo motor set in a first lead screw assembly to be started, so that the adjusting support is driven to move relatively on a first slide rail assembly, the controller controls a pressure cylinder to drive a piston rod to move after the punching die assembly and the edge of the workpiece opening are accurately positioned, an upper press block connected to the piston rod drives an air bag supporting claw to inflate through an inflating opening while moving downwards to open the opening, and further the gap between the air bag supporting claw and the workpiece is filled; further damping the impact force of the punched hole;

s6, after the punching is finished, the controller controls the polishing brush in the burr removing mechanism to reciprocate on the second lead screw assembly, the polishing brush rotates in the movement process, so that the polishing surface of the polishing brush polishes the bottom of the pore groove to remove burrs, and the gas generating device is started to absorb the polished burrs during polishing;

and S7, clamping the processed workpiece to a transmission mechanism by the feeding and discharging clamp after the processing is finished, and carrying out production of the next procedure.

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