CN112605281A

CN112605281A - Device capable of automatically adjusting punching force according to thickness of plate

Info

Publication number: CN112605281A
Application number: CN202110014521.2A
Authority: CN
Inventors: 朱仁妲
Original assignee: Nanjing Xinlantang Technology Co ltd
Current assignee: Nanjing Xinlantang Technology Co ltd
Priority date: 2021-01-06
Filing date: 2021-01-06
Publication date: 2021-04-06

Abstract

The invention relates to the field of metal stamping equipment, and discloses a device capable of automatically adjusting stamping force according to the thickness of a sheet, which comprises a main box body, wherein a stamping cavity which is communicated with the left and the right is arranged in the main box body, a fixed seat sliding cavity is communicated and arranged at the lower side of the stamping cavity, a die lifting rod cavity is communicated and arranged at the lower side of the fixed seat sliding cavity, a ring cavity which is annularly arranged by taking the die lifting rod cavity as the center is arranged at the lower side of the fixed seat sliding cavity, the sheet thickness is fed back by different time from the beginning of the movement of the die fixed seat and the stamping lifting seat to the clamping of the sheet metal, the output torque of a motor is automatically changed, so that the device can change the stamping force according to the thickness of the sheet metal, the waste of redundant energy when the sheet metal is stamped is avoided, the service life of the internal transmission of the, the stamping efficiency is greatly improved.

Description

Device capable of automatically adjusting punching force according to thickness of plate

Technical Field

The invention relates to the field of metal stamping equipment, in particular to a device capable of automatically adjusting stamping force according to the thickness of a plate.

Background

The punching is to rely on press and mould to exert external force to panel, strip, tubular product and section bar etc. to make it produce plastic deformation or separation, present sheet metal stamping equipment, its punching force size is generally not adjustable to make too big punching force of punching press sheet metal make panel warp, and the punching force is not enough again when punching press thick plate, some stamping equipment of adjustable punching force size also are manual adjustment punching force and are given first place, its complex operation influences punching efficiency, present stamping equipment is generally fixed for the mould simultaneously, the punching press head is punching motion, its punching stroke is big, punching efficiency is low.

Disclosure of Invention

The invention aims to provide a device capable of automatically adjusting the punching force according to the thickness of a plate, which can overcome the defects in the prior art, thereby improving the practicability of equipment.

The technical scheme adopted by the invention for solving the technical problems is as follows: the device capable of automatically adjusting the punching force according to the thickness of a plate comprises a main box body, wherein a punching cavity which is communicated with the left and the right is arranged in the main box body, the lower side of the punching cavity is communicated with a fixed seat sliding cavity, the lower side of the fixed seat sliding cavity is communicated with a die lifting rod cavity, the lower side of the fixed seat sliding cavity is provided with a ring cavity which is annularly arranged by taking the die lifting rod cavity as the center, the die lifting rod cavity is connected with a die lifting rod which extends upwards into the fixed seat sliding cavity in a sliding fit manner, the inner wall of the ring cavity is connected with a die lifting nut which is connected with the die lifting rod in a threaded fit manner and is annularly arranged by taking the die lifting rod as the center in a rotating fit manner, the upper end surface of the die lifting rod is fixedly connected with a die fixed seat which is connected with the fixed, the stamping device is characterized in that a stamping lifting seat cavity is communicated with the upper side of the stamping cavity, a stamping push rod cavity is communicated with the upper side of the stamping lifting seat cavity, an upper annular cavity which is arranged in an annular manner by taking the stamping push rod cavity as a center and is positioned on the upper side of the stamping lifting seat cavity is arranged on the outer side of the stamping push rod cavity, a stamping push rod extending downwards into the stamping lifting seat cavity is connected in the stamping push rod cavity in a sliding fit manner, a hydraulic oil through rod cavity with an upward opening is arranged in the stamping push rod cavity, a left hydraulic oil through cavity extending upwards into the upper end wall of the stamping push rod cavity is connected in the sliding fit manner, a stamping lifting seat is fixedly connected to the lower end face of the stamping push rod, a lower hydraulic oil through cavity extending downwards into the stamping lifting seat is communicated with the lower side of the hydraulic oil through rod cavity, a hydraulic oil through rod extending downwards and penetrating through the, the lower side of the lower hydraulic oil through cavity is communicated with a fixed block sliding cavity, and a stamping push rod nut which is in threaded fit with the stamping push rod and is annularly arranged by taking the stamping push rod as a center is connected to the inner wall of the upper annular cavity in a rotating fit manner.

On the basis of the technical scheme, fixed block slip chamber downside intercommunication is equipped with the decurrent punching press head slip chamber of opening, fixed block slip intracavity sliding fit is connected with the first fixed block of punching press, under the first fixed block terminal surface with fixedly connected with reset spring between the fixed block slip chamber lower extreme wall, fixedly connected with punching press response piece in the face under the punching press lift seat, hydraulic oil leads to pole right side intercommunication and is equipped with the level and leads to the chamber, the level leads to chamber right side intercommunication and is equipped with hydraulic pressure intercommunication chamber, hydraulic pressure intercommunication chamber downside intercommunication is equipped with the crank carousel chamber, crank carousel chamber left side is equipped with the transmission bull gear chamber, hydraulic pressure intracavity sliding fit is connected with the piston, the terminal surface articulates downwardly extending under the piston crank connecting rod in the crank carousel intracavity, crank carousel chamber left end wall rotating fit is connected with and extends to right the crank carousel intracavity extends to left the transmission bull gear chamber Move the transmission bull gear axle of gear intracavity, the terminal fixedly connected with transmission gear wheel in transmission bull gear axle left side, the terminal fixedly connected with crank carousel in transmission bull gear axle right side, crank carousel right side end face fixedly connected with the crank that the terminal normal running fit of crank connecting rod downside is connected, transmission bull gear chamber rear side intercommunication is equipped with the sliding gear chamber.

On the basis of the technical scheme, the right side of the sliding gear cavity is provided with a motor fixedly connected with the main box body, the left end surface of the motor is fixedly connected with a spline shaft which extends to the inside of the sliding gear cavity leftwards, the spline shaft is internally provided with a sliding gear cavity with an opening leftwards, the left side of the sliding gear cavity is provided with a bevel gear transmission cavity, the right end wall of the sliding gear cavity is connected with a spline rotating rod which extends to the left end wall of the bevel gear transmission cavity leftwards and extends to the right end wall of the sliding gear cavity rightwards in a rotating fit manner, the spline rotating rod is connected with a sliding gear shaft which extends to the inside of the bevel gear transmission cavity rightwards and is connected with the sliding gear shaft cavity in a spline fit manner, the sliding gear shaft is fixedly connected with a sliding straight gear which is positioned in the sliding gear, the bevel gear transmission cavity left side is equipped with the varistor chamber, fixedly connected with varistor winding rod between the end wall about the varistor chamber, it is located to go back fixedly connected with between the end wall about the varistor chamber the contact slide bar of varistor winding rod rear side, sliding fit is connected with conductive contact on the contact slide bar, conductive contact left end face with fixedly connected with slip varistor spring between the chamber left end wall.

On the basis of the technical scheme, a contact stay cord is fixedly connected to the right end face of the conductive contact, a resistance-changing winding group is fixedly connected to a resistance-changing winding rod and abutted against the tail end of the front side of the conductive contact, a force-storing gear cavity is communicated with the rear side of the upper ring cavity, a limiting gear cavity is communicated with the rear side of the force-storing gear cavity, the bevel gear transmission cavity is positioned on the lower side of the force-storing gear cavity, a transmission straight gear cavity positioned on the lower side of the bevel gear transmission cavity is communicated with the rear side of the ring cavity, a driven straight gear cavity is communicated with the front side of the ring cavity, a straight gear transmission shaft which extends downwards from the bevel gear transmission cavity to the transmission straight gear cavity and extends upwards into the force-storing gear cavity is connected with the lower end wall of the force-storing gear cavity in a rotating and matching manner, and a driven bevel gear, straight-teeth gear drive shaft up end with fixedly connected with holds power torsional spring between the power gear chamber upper end wall, the terminal fixedly connected with of straight-teeth gear drive shaft upside with the meshing power gear that holds of punching press push rod nut, fixed connection has downwardly extending to spacing gear chamber upper end wall one-way bearing axle in the spacing gear chamber, the epaxial spline fit of one-way bearing is connected with and is located the one-way bearing of spacing gear intracavity.

On the basis of the technical scheme, a limit gear capable of being meshed with the power storage gear is connected to the one-way bearing in a rotating fit mode, a one-way bearing spring is fixedly connected between the upper end face of the one-way bearing and the upper end wall of the limit gear cavity, a limit electromagnet is fixedly connected to the inner portion of the upper end wall of the limit gear cavity, a transmission straight gear meshed with the mold lifting nut is fixedly connected to the tail end of the lower side of the straight gear transmission shaft, a sliding nut cavity is arranged on the lower side of the driven straight gear cavity, the upper end wall of the sliding nut cavity is connected to a screw shaft which extends upwards into the driven straight gear cavity and downwards to penetrate through the sliding nut cavity to the lower end wall of the sliding nut cavity in a rotating fit mode, a driven straight gear meshed with the mold lifting nut is fixedly connected to the tail end of the upper side of the, the bevel gear transmission mechanism is characterized in that the tail end of the left side of the bevel gear shaft sleeve is fixedly connected with a driving bevel gear meshed with the driven bevel gear, the tail end of the right side of the bevel gear shaft sleeve is connected with a bevel gear shaft sleeve seat in a rotating fit mode, the rear end wall of the bevel gear transmission cavity is fixedly connected with a friction block abutted to the rear end face of the bevel gear shaft sleeve seat, and the right end wall of the bevel gear transmission cavity is internally fixedly connected with a bevel gear electromagnet connected with the spline rotating rod in a rotating fit.

On the basis of the technical scheme, a bevel gear spring is fixedly connected between the left end face of the bevel gear electromagnet and the right end face of the bevel gear shaft sleeve seat, a bevel gear pull rope is fixedly connected with the right end face of the bevel gear shaft sleeve seat, the front side of the sliding nut cavity is communicated with a bayonet lock sliding cavity, the front side of the bayonet lock sliding cavity is communicated with a bayonet lock seat sliding cavity, a sliding nut in sliding fit connection with the sliding nut cavity is connected onto the screw shaft in a threaded fit manner, a sliding block positioned on the lower side of the sliding nut is connected into the sliding nut cavity in a sliding fit manner, a screw shaft through cavity which is communicated up and down is arranged in the sliding block, the screw shaft through cavity, a slider spring is fixedly connected onto the upper end face of the sliding block and the lower end face of the sliding nut, a bayonet lock insertion cavity with a right opening, the contact terminal comprises a clamping pin seat, a bevel gear pull rope, a clamping pin seat sliding cavity, a clamping pin seat spring, a bevel gear pull rope, a clamping pin seat and a sliding block, wherein the clamping pin seat spring is fixedly connected between the right end of the clamping pin seat and the right end wall of the sliding block cavity of the clamping pin seat, the other end of the bevel gear pull rope is fixedly connected with the left end face of the clamping pin seat, the left end face of the clamping pin seat is fixedly connected with a clamping pin which is connected with the sliding block in.

The invention has the beneficial effects that: through the mould fixing base, the punching press lift seat begins to move to the time difference of pressing from both sides tight sheet metal, it is different to feed back out sheet metal thickness, the automatic motor output torque size that changes, thereby make the device can change the punching press power size according to sheet metal thickness, the waste of the unnecessary energy when having avoided punching press sheet metal, improve the inside driven life of device simultaneously, the mould fixing base moves with punching press lift seat in opposite directions simultaneously, the stroke of the single punching press of punching press head has been reduced, the punching press efficiency is greatly improved.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a schematic view of the overall structure of an apparatus for automatically adjusting a punching force according to a thickness of a plate according to the present invention.

Fig. 2 is a schematic view of the structure a-a in fig. 1.

FIG. 3 is a schematic diagram of B-B in FIG. 1.

Fig. 4 is an enlarged schematic view of C in fig. 1.

Fig. 5 is an enlarged schematic view of D in fig. 2.

Fig. 6 is an enlarged schematic view of E in fig. 3.

Detailed Description

The invention will now be described in detail with reference to fig. 1-6, wherein for ease of description the orientations described hereinafter are now defined as follows: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.

The device capable of automatically adjusting the punching force according to the plate thickness, which is described in conjunction with the attached drawings 1-6, comprises a main box body 10, a punching cavity 94 which is through from left to right is arranged in the main box body 10, a fixing seat sliding cavity 35 is communicated and arranged at the lower side of the punching cavity 94, a die lifting rod cavity 19 is communicated and arranged at the lower side of the fixing seat sliding cavity 35, an annular cavity 21 which is annularly arranged by taking the die lifting rod cavity 19 as the center is arranged at the lower side of the fixing seat sliding cavity 35, a die lifting rod 20 which extends upwards into the fixing seat sliding cavity 35 is connected in a sliding fit manner in the die lifting rod cavity 19, a die lifting nut 18 which is in threaded fit connection with the die lifting rod 20 and is annularly arranged by taking the die lifting rod 20 as the center is connected in the die lifting rod cavity 19 in a sliding fit manner, a die fixing seat 34 which is in sliding fit connection with, be equipped with the ascending mould fixed cavity 33 of opening in the mould fixing base 34, punching press chamber 94 upside intercommunication is equipped with punching press lift seat chamber 23, punching press lift seat chamber 23 upside intercommunication is equipped with punching press push rod chamber 73, the punching press push rod chamber 73 outside is equipped with punching press push rod chamber 73 sets up and is located the last ring chamber 68 of punching press lift seat chamber 23 upside for central ring form, punching press push rod chamber 73 sliding fit is connected with the punching press push rod 72 of downwardly extending to in punching press lift seat chamber 23, be equipped with the ascending hydraulic oil through rod chamber 71 of opening in the punching press push rod 72, sliding fit is connected with the left hydraulic oil through cavity 66 that upwardly extends to in punching press push rod chamber 73 upper end wall in hydraulic oil through rod chamber 71, punching press push rod 72 lower terminal surface fixedly connected with punching press lift seat 22, hydraulic oil through rod chamber 71 downside intercommunication is equipped with lower hydraulic oil through cavity 69 of downwardly extending to in punching press seat 22, the stamping device is characterized in that a hydraulic oil through rod 67 which extends downwards to penetrate through the left hydraulic oil through cavity 66 is arranged in the upper end wall of the stamping push rod cavity 73, a fixed block sliding cavity 28 is communicated with the lower side of the lower hydraulic oil through cavity 69, and a stamping push rod nut 70 which is in threaded fit with the stamping push rod 72 and is annularly arranged by taking the stamping push rod 72 as a center is connected to the inner wall of the upper annular cavity 68 in a rotating fit mode.

In addition, in one embodiment, a stamping head sliding cavity 26 with a downward opening is communicated with the lower side of the fixed block sliding cavity 28, a stamping head fixed block 27 is connected with the fixed block sliding cavity 28 in a sliding fit manner, a reset spring 25 is fixedly connected between the lower end surface of the stamping head fixed block 27 and the lower end wall of the fixed block sliding cavity 28, a stamping induction block 24 is fixedly connected with the lower end surface of the stamping lifting seat 22 in the lower end surface, a horizontal through cavity 11 is communicated with the right side of the hydraulic oil through rod 67, a hydraulic communicating cavity 12 is communicated with the right side of the horizontal through cavity 11, a hydraulic cavity 13 is communicated with the lower side of the hydraulic communicating cavity 12, a crank turntable cavity 15 is communicated with the lower side of the hydraulic cavity 13, a transmission large gear cavity 29 is arranged on the left side of the crank turntable cavity 15, a piston 14 is connected with the hydraulic cavity 13 in a sliding fit manner, and the lower end, the end wall normal running fit in crank carousel chamber 15 left side is connected with and extends to right the crank carousel chamber 15 is inside to extend to a left side transmission bull gear shaft 31 in the transmission bull gear chamber 29, the terminal fixedly connected with transmission gear wheel 30 in transmission bull gear shaft 31 left side, the terminal fixedly connected with crank carousel 32 in transmission bull gear shaft 31 right side, crank carousel 32 right end face fixedly connected with the crank 17 that 16 downside end normal running fit is connected, the intercommunication of transmission bull gear chamber 29 rear side is equipped with sliding gear chamber 42.

In addition, in an embodiment, sliding gear chamber 42 right side be equipped with main tank 10 fixed connection's motor 45, motor 45 left end face fixedly connected with extend to left spline shaft 44 in sliding gear chamber 42, be equipped with opening sliding gear axle chamber 43 to the left in the spline shaft 44, sliding gear chamber 42 left side is equipped with bevel gear transmission chamber 59, sliding gear chamber 42 right end wall internal rotation fit is connected with and extends to right bevel gear transmission chamber 59 left end wall extends to left spline dwang 77 of sliding gear chamber 42 right end wall, spline dwang 77 internal spline fit is connected with and extends to left bevel gear transmission chamber 59 is internal to extend to right slide gear axle chamber 43 in and with sliding gear axle chamber 43 spline fit connection's sliding gear axle 41, fixedly connected with is located on sliding gear axle 41 sliding gear chamber 42 and can with the straight tooth that slides that transmission gear 30 meshes The left side of the bevel gear transmission cavity 59 is provided with a variable resistance cavity 48, a variable resistance winding rod 47 is fixedly connected between the left end wall and the right end wall of the variable resistance cavity 48, a contact head sliding rod 38 located on the rear side of the variable resistance winding rod 47 is fixedly connected between the left end wall and the right end wall of the variable resistance cavity 48, a conductive contact head 37 is connected onto the contact head sliding rod 38 in a sliding fit mode, and a sliding variable resistance spring 36 is fixedly connected between the left end surface of the conductive contact head 37 and the left end wall of the variable resistance cavity 48.

In addition, in an embodiment, the right end face of the conductive contact 37 is fixedly connected with a contact pull rope 39, the resistance-changing winding group 46 which is abutted against the tail end of the front side of the conductive contact 37 is fixedly connected to the resistance-changing winding rod 47, the rear side of the upper ring cavity 68 is communicated with and provided with a power-storing gear cavity 49, the rear side of the power-storing gear cavity 49 is communicated with and provided with a limiting gear cavity 63, the bevel gear transmission cavity 59 is positioned on the lower side of the power-storing gear cavity 49, the rear side of the ring cavity 21 is communicated with and provided with a transmission straight gear cavity 55 which is positioned on the lower side of the bevel gear transmission cavity 59, the front side of the ring cavity 21 is communicated with and provided with a driven straight gear cavity 52, the lower end wall of the power-storing gear cavity 49 is in a rotating fit connection mode, the bevel gear transmission cavity 59 extends downwards to the straight gear transmission shaft 56 which extends upwards to the power-storing gear cavity 49 in the transmission cavity 55 57, 56 up end of spur gear transmission shaft with fixedly connected with holds power torsional spring 50 between 49 upper end walls of power gear chamber, 56 upside end fixedly connected with of spur gear transmission shaft with the meshing power gear 51 that holds of punching press push rod nut 70, fixedly connected with downwardly extending to in the spacing gear chamber 63 upper end wall one-way bearing axle 65 in the spacing gear chamber 63, spline fit connection has and is located on one-way bearing axle 65 one-way bearing 60 in the spacing gear chamber 63.

In addition, in one embodiment, a limit gear 61 capable of meshing with the power accumulating gear 51 is connected to the one-way bearing 60 in a rotating fit manner, a one-way bearing spring 62 is fixedly connected between the upper end surface of the one-way bearing 60 and the upper end wall of the limit gear cavity 63, a limit electromagnet 64 is fixedly connected to the inside of the upper end wall of the limit gear cavity 63, a transmission spur gear 54 meshing with the mold lifting nut 18 is fixedly connected to the lower end of the spur gear transmission shaft 56, a sliding nut cavity 82 is arranged on the lower side of the driven spur gear cavity 52, a screw shaft 83 extending upwards into the driven spur gear cavity 52 and downwards extending through the sliding nut cavity 82 to the inside of the lower end wall of the sliding nut cavity 82 is connected to the upper end wall of the sliding nut cavity 82 in a rotating fit manner, a driven spur gear 53 meshing with the mold lifting nut 18 is fixedly connected to the upper end of the screw shaft, the terminal fixedly connected with bevel gear axle sleeve 80 in sliding gear 41 left side, the terminal fixedly connected with in bevel gear axle sleeve 80 left side can with the drive bevel gear 58 of driven bevel gear 57 meshing, the terminal normal running fit in bevel gear axle sleeve 80 right side is connected with bevel gear axle sleeve seat 79, fixedly connected with on the bevel gear transmission chamber 59 rear end wall with the clutch blocks 75 of bevel gear axle sleeve seat 79 rear end face butt, fixedly connected with in the bevel gear transmission chamber 59 right end wall with the bevel gear electro-magnet 76 that spline dwang 77 normal running fit is connected.

In addition, in one embodiment, a bevel gear spring 74 is fixedly connected between the left end surface of the bevel gear electromagnet 76 and the right end surface of the bevel gear shaft sleeve seat 79, a bevel gear pulling rope 78 is fixedly connected to the right end surface of the bevel gear shaft sleeve seat 79, a bayonet sliding cavity 89 is communicated with the front side of the sliding nut cavity 82, a bayonet seat sliding cavity 86 is communicated with the front side of the bayonet sliding cavity 89, a sliding nut 84 in sliding fit connection with the sliding nut cavity 82 is connected to the screw shaft 83 in threaded fit, a sliding block 91 positioned at the lower side of the sliding nut 84 is connected to the sliding nut cavity 82 in sliding fit, a screw shaft through cavity 92 which penetrates up and down is arranged in the sliding block 91, the screw shaft through cavity 92 penetrates through the screw shaft, a slider spring 93 is fixedly connected to the upper end surface of the sliding block 91 and the lower end surface of the sliding nut 84, and a bayonet inserting cavity 85, a bayonet seat 88 is connected in the bayonet seat sliding cavity 86 in a sliding fit manner, a bayonet seat spring 87 is fixedly connected between the right end of the bayonet seat 88 and the wall of the right end of the bayonet seat sliding cavity 86, the other end of the bevel gear pulling rope 78 is fixedly connected with the left end face of the bayonet seat 88, a bayonet 90 which is connected with the bayonet sliding cavity 89 in a sliding fit manner and corresponds to the bayonet inserting cavity 85 is fixedly connected with the left end face of the bayonet seat 88, and the other end of the contact pulling rope 39 is fixedly connected with the lower end face of the sliding block 91.

The fixing and connecting method in this embodiment includes, but is not limited to, bolting, welding, and the like.

As shown in fig. 1-6, when the apparatus of the present invention is in an initial state, the lower end face of the die holder 34 is attached to the lower end wall of the holder sliding cavity 35, the upper end face of the punch lifting holder 22 is attached to the upper end wall of the punch lifting holder cavity 23, the crank 17 is located right below the driving pinion shaft 31, the piston 14 is located at the lower end of the hydraulic cavity 13, the upper end face of the punch head fixing block 27 is attached to the upper end wall of the fixing block sliding cavity 28, the return spring 25 is in a relaxed state, the sliding rheostat spring 36 is in a relaxed state, the front end of the conductive contact 37 is just abutted to the left end of the rheostat winding group 46, the contact sliding rod 38 is connected to the motor 45 through a wire, the right end of the rheostat winding group 46 is connected to the power source, the bevel gear electromagnet 76 is de-energized, the elastic force of the bevel gear spring 74 is greater than the, the bevel gear pull rope 78 is in a tightened state, the one-way bearing shaft 65 is powered off, the one-way bearing spring 62 is in a relaxed state, the limiting gear 61 is meshed with the force accumulating gear 51, the force accumulating torsion spring 50 is in a relaxed state, the lower end face of the sliding block 91 is attached to the lower end wall of the sliding nut cavity 82, the sliding block spring 93 is in a relaxed state, the bayonet socket spring 87 is in a stretched state, the bayonet 90 is clamped into the bayonet inserting cavity 85, and the hydraulic cavity 13, the hydraulic communicating cavity 12, the horizontal communicating cavity 11 and the hydraulic oil through rod 67 are filled with hydraulic oil;

sequence of mechanical actions of the whole device:

when the stamping die is started to work, the stamping die is fixed in the die fixing cavity 33, the stamping head is fixedly connected with the lower end face of the stamping head fixing block 27, the lower end face of the stamping head is flush with the lower end face of the stamping lifting seat 22, a metal plate is placed on the upper end face of the die fixing seat 34, the starting motor 45 drives the spline shaft 44 to rotate, so that the sliding gear shaft 41 rotates, the bevel gear shaft sleeve 80 is driven to rotate, the driving bevel gear 58 rotates, the driven bevel gear 57 rotates, the spur gear transmission shaft 56 rotates, the power storage torsion spring 50 is twisted, the spur gear transmission shaft 56 rotates to drive the power storage gear 51 to rotate, so that the limiting gear 61 rotates, due to the action of the one-way bearing 60, the limiting gear 61 cannot rotate reversely, so that the power storage gear 51 cannot rotate, and the power storage gear 51 rotates to drive the stamping push rod nut, so that the stamping push rod 72 moves downwards to drive the stamping lifting seat 22 to move downwards, meanwhile, the spur gear transmission shaft 56 rotates to drive the transmission spur gear 54 to rotate, so that the die lifting nut 18 rotates to drive the die lifting rod 20 to move upwards, so that the die fixing seat 34 moves upwards, the speed of the opposite movement of the die fixing seat 34 and the stamping lifting seat 22 is consistent, when the lower end surface of the stamping lifting seat 22 touches a plate, the stamping induction block 24 is triggered, so that the bevel gear electromagnet 76 is started to be electrified, so that the bevel gear electromagnet 76 attracts the bevel gear shaft sleeve seat 79, so that the bevel gear shaft sleeve seat 79 overcomes the elasticity of the bevel gear spring 74 to move rightwards, so as to drive the bevel gear shaft sleeve 80 to move rightwards, so that the driving bevel gear 58 moves rightwards to be disengaged from the driven bevel gear 57, and further to stop the rotation of the driven bevel, so that the stamping lifting seat 22 and the die fixing seat 34 stop moving oppositely, and the stamping lifting seat 22 and the die fixing seat 34 clamp the plate;

during this period, the die raising/lowering nut 18 rotates to drive the driven spur gear 53 to rotate, thereby rotating the screw shaft 83, thereby moving the slide nut 84 upward, thereby stretching the slider spring 93, the slider 91 is temporarily prevented from moving upward by being caught by the click pin 90, at this time, the bevel gear sleeve holder 79 moves rightward to loosen the bevel gear pulling rope 78, thereby causing the click pin holder 88 to lose the pulling force of the bevel gear pulling rope 78, thereby causing the click pin holder 88 to move rightward by the pulling force of the click pin holder spring 87, thereby driving the click pin 90 to move rightward into the click sliding chamber 89, thereby causing the slider 91 to move upward by the pulling force of the slider spring 93, thereby pulling the contact pulling rope 39, causing the conductive contact 37 to move rightward against the pulling force of the sliding rheostat spring 36, thereby causing the resistance between the conductive contact 37 and the rheostat 46 to decrease, and further the current passing through the conductive contact 37 is increased, thereby the output power of the motor 45 is increased, thereby the output torque of the motor 45 is increased, thereby the torque of the sliding gear shaft 41 is increased, when the sliding gear shaft 41 moves rightwards to drive the sliding spur gear 40 to move rightwards to be meshed with the transmission big gear 30, the sliding gear shaft 41 rotates to drive the sliding spur gear 40 to rotate, thereby the transmission big gear 30 rotates to drive the transmission big gear shaft 31 to rotate, thereby the crank turntable 32 rotates to drive the crank 17 to rotate around the transmission big gear shaft 31, thereby the crank connecting rod 16 reciprocates up and down, when the crank connecting rod 16 moves upwards, the piston 14 is driven to move upwards, by the action of the hydraulic oil, the punching head fixing block 27 moves downwards, the return spring 25 compresses, the punching head fixing block 27 drives the punching head to move downwards, completing one-time stamping operation;

at this time, the crank rotary disk 32 just rotates half a turn, the crank rotary disk 32 continues to rotate, so that the crank connecting rod 16 moves downwards, thereby driving the punch head fixing block 27 to move upwards, meanwhile, the limit electromagnet 64 is started, so that the limit electromagnet 64 is electrified to attract the one-way bearing 60, thereby the one-way bearing 60 overcomes the elasticity of the one-way bearing spring 62 to move upwards, thereby driving the limit gear 61 to move upwards to be disengaged from the power storage gear 51, thereby the straight gear transmission shaft 56 is reversed under the elasticity of the power storage torsion spring 50, thereby driving the die fixing seat 34 to move downwards to an initial position, and simultaneously driving the punch lifting seat 22 to move upwards to an initial position, at this time, the punch sensing block 24 is far away from the plate, so that the punch sensing block 24 is not triggered, thereby the bevel gear electromagnet 76 is powered off, the bevel gear shaft sleeve seat 79 loses attraction, the bevel gear shaft sleeve seat 79 moves leftwards under, so that the driving bevel gear 58 moves leftwards, and because of the friction block 75, the bevel gear shaft sleeve seat 79 moves leftwards slowly, during which the straight gear transmission shaft 56 rotates reversely to make the sliding nut 84 move downwards to drive the sliding block 91 to move downwards to the initial position, at this time, the driving bevel gear 58 moves leftwards just to the initial position, pulls the bevel gear pulling rope 78, so that the latch seat 88 moves leftwards to the initial position against the pulling force of the latch seat spring 87, thereby driving the latch 90 to move leftwards to the latch insertion cavity 85, at the same time, the crank turntable 32 rotates just one circle, the piston 14 is just at the initial position, at this time, the one-way bearing shaft 65 loses power, the one-way bearing 60 loses attraction, so that the limit gear 61 moves downwards under the elastic force of the one-way bearing spring 62 to be engaged with the power storage gear 51, and the, waiting for the next stamping;

when plates with different thicknesses are punched, the time from the opposite movement of the die fixing seat 34 and the punching lifting seat 22 to the clamping of the plates is different, so that the rotation time of the spur gear transmission shaft 56 is different, the rotation time of the screw shaft 83 is different, the ascending distance of the sliding nut 84 is different, the upward movement distance of the slider 91 is different, the rightward movement distance of the conductive contact 37 pulled by the contact pull rope 39 is different, the abutting position of the front end of the conductive contact 37 and the resistance-variable winding group 46 is different, the resistance between the conductive contact 37 and the resistance-variable winding group 46 is different, the currents flowing through the conductive contact 37, the contact sliding rod 38 and the motor 45 are different, the output torque of the motor 45 is different, the pushing force given to the piston 14 by the crank connecting rod 16 upwards is changed, and the downward punching force of the punching head fixing block 27 for driving the punching head is changed, therefore, the purpose of changing the punching force according to the thickness of the plate is achieved.

The invention has the beneficial effects that: through the mould fixing base, the punching press lift seat begins to move to the time difference of pressing from both sides tight sheet metal, it is different to feed back out sheet metal thickness, the automatic motor output torque size that changes to make the device can select suitable punching press power size according to sheet metal thickness, ensure the punching press precision, improve the inside driven life of device simultaneously, mould fixing base and punching press lift seat move in opposite directions simultaneously, reduced the stroke of the single punching press of punching press head, improved punching press efficiency greatly.

The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a can be according to device of panel thickness automatic adjustment punching press power, includes the main tank body, its characterized in that: a stamping cavity which is communicated with the left and the right is arranged in the main box body, a fixed seat sliding cavity is communicated and arranged at the lower side of the stamping cavity, a die lifting rod cavity is communicated and arranged at the lower side of the fixed seat sliding cavity, a ring cavity which is annularly arranged by taking the die lifting rod cavity as a center is arranged at the lower side of the fixed seat sliding cavity, a die lifting rod which extends upwards into the fixed seat sliding cavity is connected and matched and connected in the ring cavity in a sliding way, a die lifting nut which is in threaded fit connection with the die lifting rod and annularly arranged by taking the die lifting rod as a center is connected and connected in the ring cavity in a rotating fit way, a die fixed cavity with an upward opening is arranged in the die fixed seat, a stamping lifting seat cavity is communicated and arranged at the upper side of the stamping lifting seat cavity, and a stamping push rod cavity is communicated and arranged at the upper side of, punching press push rod chamber outside be equipped with punching press push rod chamber sets up and is located as central annular the last annular chamber of punching press lift seat chamber upside, punching press push rod intracavity sliding fit is connected with downwardly extending to the punching press push rod of punching press lift seat intracavity, be equipped with the ascending hydraulic oil of opening in the punching press push rod and lead to the pole chamber, hydraulic oil leads to pole intracavity sliding fit and is connected with and upwards extends to left hydraulic oil in the punching press push rod chamber upper end wall leads to the chamber, terminal surface fixedly connected with punching press lift seat under the punching press push rod, hydraulic oil leads to pole chamber downside intercommunication and is equipped with downwardly extending to lower hydraulic oil in the punching press lift seat leads to the chamber, be equipped with downwardly extending in the punching press push rod chamber upper end wall and runs through the hydraulic oil lead to the pole in left hydraulic oil leads to the chamber, lower hydraulic oil leads to the chamber downside intercommunication and is equipped with fixed block sliding chamber, it is connected with to go up annular inner wall internal rotation The punching push rod nut is arranged in an annular mode.

2. The device for automatically adjusting the punching force according to the thickness of the plate as claimed in claim 1, wherein: fixed block slip chamber downside intercommunication is equipped with the first slip chamber of decurrent punching press of opening, fixed block slip intracavity sliding fit is connected with the first fixed block of punching press, under the first fixed block terminal surface with fixedly connected with reset spring between the fixed block slip chamber lower extreme wall, fixedly connected with punching press response piece in the punching press lift seat lower extreme face, hydraulic oil leads to pole right side intercommunication and is equipped with the level and leads to the chamber, the level leads to chamber right side intercommunication and is equipped with hydraulic pressure intercommunication chamber, hydraulic pressure intercommunication chamber downside intercommunication is equipped with the hydraulic pressure chamber, hydraulic pressure chamber downside intercommunication is equipped with crank carousel chamber, crank carousel chamber left side is equipped with the transmission bull gear chamber, sliding fit is connected with the piston in the hydraulic pressure chamber, the terminal surface articulates downwardly extending under the piston the crank connecting rod of crank carousel intracavity, crank carousel chamber left end wall rotating fit is connected with and extends to right the crank carousel intracavity extends to left the transmission bull gear intracavity The transmission gear wheel is fixedly connected to the tail end of the left side of the transmission gear wheel shaft, the crank turntable is fixedly connected to the tail end of the right side of the transmission gear wheel shaft, the crank which is connected with the tail end of the lower side of the crank connecting rod in a rotating fit mode is fixedly connected to the right end face of the crank turntable, and a sliding gear cavity is formed in the rear side of the transmission gear cavity in a communicating mode.

3. The device for automatically adjusting the punching force according to the thickness of the plate as claimed in claim 2, wherein: the right side of the sliding gear cavity is provided with a motor fixedly connected with the main box body, the left end face of the motor is fixedly connected with a spline shaft which extends to the inside of the sliding gear cavity leftwards, the inside of the spline shaft is provided with an opening sliding gear cavity leftwards, the left side of the sliding gear cavity is provided with a bevel gear transmission cavity, the right end wall of the sliding gear cavity is connected with a spline rotating rod which extends to the left end wall of the bevel gear transmission cavity leftwards and extends to the right end wall of the sliding gear cavity rightwards in a rotating fit manner, the spline of the spline rotating rod is connected with a sliding gear shaft which extends to the inside of the bevel gear transmission cavity rightwards and is connected with the spline of the sliding gear cavity in a matching manner, the sliding gear shaft is fixedly connected with a sliding straight gear which is positioned in, the bevel gear transmission cavity left side is equipped with the varistor chamber, fixedly connected with varistor winding rod between the end wall about the varistor chamber, it is located to go back fixedly connected with between the end wall about the varistor chamber the contact slide bar of varistor winding rod rear side, sliding fit is connected with conductive contact on the contact slide bar, conductive contact left end face with fixedly connected with slip varistor spring between the chamber left end wall.

4. The apparatus of claim 3, wherein the punching force can be automatically adjusted according to the thickness of the plate, and the apparatus comprises: conductive contact head right-hand member face fixedly connected with contact head stay cord, on the varistor wire winding pole fixedly connected with the varistor wire winding group of the terminal butt of conductive contact head front side, it is equipped with power storage gear chamber to go up ring chamber rear side intercommunication, power storage gear chamber rear side intercommunication is equipped with spacing gear chamber, bevel gear transmission chamber is located power storage gear chamber downside, ring chamber rear side intercommunication is equipped with and is located the transmission straight gear chamber of bevel gear transmission chamber downside, ring chamber front side intercommunication is equipped with driven straight gear chamber, power storage gear chamber lower extreme wall internal rotation cooperation is connected with downwardly extending and runs through bevel gear transmission chamber extremely transmission straight gear intracavity upwards extends to hold the straight gear transmission shaft of power gear intracavity, fixedly connected with is located on the straight gear transmission shaft driven bevel gear of bevel gear transmission intracavity, straight gear transmission up end with hold fixedly connected with between the power gear chamber upper end wall and hold power torsional spring The straight-gear transmission shaft is connected with the end of the upper side of the stamping push rod nut in a matched mode, the end of the upper side of the straight-gear transmission shaft is fixedly connected with a power storage gear meshed with the stamping push rod nut, the inner fixed connection of the upper end wall of the limiting gear cavity extends downwards to an one-way bearing shaft in the limiting gear cavity, and the one-way bearing shaft is connected with a one-way bearing in the limiting gear cavity in a matched mode through.

5. The apparatus of claim 4, wherein the punching force can be automatically adjusted according to the thickness of the plate, and the apparatus further comprises: the upper end surface of the one-way bearing is fixedly connected with a one-way bearing spring fixedly connected between the upper end walls of the limiting gear cavity, the inner end wall of the upper end wall of the limiting gear cavity is fixedly connected with a limiting electromagnet, the tail end of the lower side of a straight gear transmission shaft is fixedly connected with a transmission straight gear meshed with a mold lifting nut, a sliding nut cavity is arranged on the lower side of the driven straight gear cavity, the upper end wall of the sliding nut cavity is in internal rotation fit connection with a screw shaft which extends upwards to the inner end wall of the driven straight gear cavity and extends downwards to penetrate through the sliding nut cavity to the lower end wall of the sliding nut cavity, the tail end of the upper side of the screw shaft is fixedly connected with a driven straight gear meshed with the mold lifting nut, the tail end of the left side of the sliding gear shaft is fixedly connected with a bevel gear shaft sleeve, and the tail end of the left side of the bevel gear The bevel gear transmission device comprises a bevel gear shaft sleeve, a bevel gear shaft sleeve seat is connected to the tail end of the right side of the bevel gear shaft sleeve in a rotating fit mode, a friction block abutted against the rear end face of the bevel gear shaft sleeve seat is fixedly connected to the rear end wall of a bevel gear transmission cavity, and a bevel gear electromagnet is fixedly connected to the right end wall of the bevel gear transmission cavity in a rotating fit mode and connected with a spline rotating rod in a rotating fit mode.

6. The apparatus of claim 5, wherein the punching force is automatically adjusted according to the thickness of the plate, and the apparatus further comprises: a bevel gear spring is fixedly connected between the left end face of the bevel gear electromagnet and the right end face of the bevel gear shaft sleeve seat, a bevel gear pull rope is fixedly connected with the right end face of the bevel gear shaft sleeve seat, a bayonet lock sliding cavity is communicated with the front side of the sliding nut cavity, a bayonet lock seat sliding cavity is communicated with the front side of the bayonet lock sliding cavity, a sliding nut in sliding fit connection with the sliding nut cavity is connected onto the screw shaft in a threaded fit manner, a sliding block positioned on the lower side of the sliding nut is connected into the sliding nut cavity in a sliding fit manner, a screw shaft through cavity which is communicated up and down is arranged in the sliding block, the screw shaft penetrates through the screw shaft through cavity, a sliding block spring is fixedly connected onto the upper end face of the sliding block and the lower end face of the sliding nut, a bayonet lock insertion cavity with a right, the contact terminal comprises a clamping pin seat, a bevel gear pull rope, a clamping pin seat sliding cavity, a clamping pin seat spring, a bevel gear pull rope, a clamping pin seat and a sliding block, wherein the clamping pin seat spring is fixedly connected between the right end of the clamping pin seat and the right end wall of the sliding block cavity of the clamping pin seat, the other end of the bevel gear pull rope is fixedly connected with the left end face of the clamping pin seat, the left end face of the clamping pin seat is fixedly connected with a clamping pin which is connected with the sliding block in.