Stamping forming production line and production process

Abstract

The technical scheme belongs to the technical field of punch production lines and specifically relates to a punch forming production line and a production process, which comprise a machine base, the machine base is provided with a feeding frame, the feeding frame is provided with a feeding bin, the feeding bin is used for stacking feeding pieces, the machine base is provided with a feeding device, the feeding device is used for feeding; the machine base is provided with a first punch device, the first punch device is used for punching the feeding pieces; the machine base is further provided with a second punch device, the second punch device is used for punching the feeding pieces; the machine base is provided with a discharging device, the discharging device is used for discharging; the machine base is provided with a station turntable device, the station turntable device comprises a turning base, a turntable driving member and a plurality of clamping pieces, the turning base is driven by the turntable driving member, the turning base rotates to switch the feeding pieces along the circumferences from the feeding device, the first punch device and the second punch device around the rotation axis in sequence, the devices corresponding to various processing steps are arranged circumferentially around the station turntable device, and the space utilization is improved.

Description

TECHNICAL FIELD

[0001] The technical scheme relates to the technical field of stamping production lines, in particular to a stamping forming production line and a production process. BACKGROUND

[0002] The stamping production line is a production line for stamping processing of metal or other materials, which uses a die to apply pressure on a metal sheet on a press machine to cause separation or plastic deformation, thereby obtaining a part with the required shape and size.

[0003] For example, Chinese patent CN108405691A discloses an automatic feeding and discharging stamping production line, which comprises a feeding machine, a discharging machine, a plurality of feeding stamping units and a transfer machine. Each feeding stamping unit comprises a feeding machine near the feeding machine side, a stamping machine arranged adjacent to the feeding machine, the feeding machine comprises a feeding machine body, a feeding table and an oil cylinder, the output end of the oil cylinder is transversely provided with a cross beam, a sliding rod is slidably connected below the cross beam, and an adsorption assembly is arranged at the two ends of the sliding rod. The adsorption assembly comprises a suction cup and a suction force generator, the bottom surface shape of the suction cup is adapted to the shape of the upper surface of the finished workpiece, and a buffer column is arranged on the outer periphery of the bottom surface of the suction cup.

[0004] At present, the existing workpiece adopts a sheet-shaped material sheet, as shown in Figure 14 , a through hole 200 is formed in the middle of the material sheet 100, two recesses 300 are formed on the material sheet 100, the two recesses 300 are located on the two sides of the through hole 200 along the width direction of the material sheet, two handle grooves 400 are formed in the material sheet 100, the two handle grooves 400 are located at the two ends of the through hole 200 along the length direction of the material sheet 100, and a handle part 500 extends in the handle groove 400. When the material sheet 100 is stamped, the handle part 500 is used for gripping.

[0005] The above-mentioned automatic feeding and discharging stamping production line needs to use a multi-section type different processing link cooperation mode for stamping forming of the existing workpiece, and multiple stamping machines are laid along a straight line during use, which has a higher requirement for the space of the site and has low space utilization, and needs to be improved. SUMMARY

[0006] The technical scheme is provided to improve the problem of low space utilization after the production line is laid along a straight line for use, and provides a stamping forming production line and a production process.

[0007] The purpose of the technical scheme is achieved as follows:

[0008] A stamping forming production line comprises a machine base, a feeding rack is arranged on the machine base, the feeding rack has a feeding bin, the feeding bin is used for stacking material sheets, and a feeding device is arranged on the machine base, the feeding device is used for feeding the material sheets out of the feeding bin.

[0009] The first stamping device is arranged on the machine base and comprises a first machining head and a first stamping seat, the first machining head is movable towards the first stamping seat for stamping the sheet on the first stamping seat;

[0010] The machine base is further provided with a second stamping device, the second stamping device comprises a second machining head, a second stamping seat and a reciprocating material changing assembly, the reciprocating material changing assembly is used to drive the sheet to move reciprocally, when the sheet moves to the position below the second machining head, the second machining head is movable towards the reciprocating material changing assembly to stamp the sheet;

[0011] The machine base is provided with a discharging device, when the sheet moves to the discharging device, the discharging device is used to move the sheet out of the reciprocating material changing assembly to realize discharging;

[0012] The machine base is provided with a work station turntable device, the work station turntable device comprises a rotating seat, a turntable driving member and a plurality of clamping pieces, the plurality of clamping pieces are uniformly distributed around the rotating axis of the rotating seat, the clamping pieces are used to clamp the sheet, the rotating seat is driven by the turntable driving member, the rotating seat rotates to switch the sheet around the rotating axis from the feeding device, the first stamping device and the second stamping device in sequence.

[0013] Through the above technical scheme, when the stamping forming production line and the production process are normally used, the feeding rack on the machine base has a feeding bin, the sheets are stacked in the feeding bin for standby, the feeding device is driven to make the stacked sheets be discharged from top to bottom into the machining process, and the sheets are sent to the work station turntable device, a plurality of clamping pieces are installed on the rotating seat, each clamping piece clamps one sheet, the turntable driving member drives the rotating seat to rotate to drive the plurality of clamping pieces to move synchronously, so that the cooperation of the plurality of clamping pieces is better during machining.

[0014] The machine base is provided with the first stamping device, the rotating seat rotates to switch the sheet to the first stamping device, the clamping piece places the sheet on the first stamping seat, the first machining head is driven to move towards the first stamping seat, so that the first machining head accurately stamps the sheet on the first stamping seat to form an indentation and process a handle part, to obtain the sheet after the first stamping, the machine base is further provided with the second stamping device, the rotating seat rotates again to switch the sheet to the second stamping device, the sheet is placed on the reciprocating material changing assembly and below the second machining head, the second machining head is driven to move towards the reciprocating material changing assembly, the second machining head accurately stamps the sheet to complete the machining process, to obtain the sheet after the second stamping, the reciprocating material changing assembly drives the sheet to move towards the discharging device, the discharging device moves the sheet out of the reciprocating material changing assembly to complete discharging.

[0015] Each piece can be sequentially switched to the position of the first and second stamping devices by the feeding device to perform two-stage processing, realize the work cycle of the piece from feeding to discharging, and arrange the devices corresponding to each processing step circumferentially around the work station turntable device, realize the compactness and integration of the production line, optimize the spatial layout of the production and processing process, and improve the space utilization.

[0016] Preferably, the turntable driving member comprises a turntable motor and a cam divider arranged on the turntable motor, the turntable motor drives the turntable to rotate through the cam divider, and the cam divider is used to control the rotation angle of the turntable to realize equidistant switching.

[0017] The turntable comprises a turntable and a carrier table slidably connected to the turntable, the clamping member is arranged on the carrier table, the sliding direction of the carrier table is parallel to the rotation axis of the turntable, the turntable is provided with a sliding driving member, and the sliding driving member drives the carrier table to slide to move the clamping member up and down.

[0018] Through the above technical solution, the turntable driving member drives the turntable to rotate and drives the carrier table, the carrier table is slidably connected to the turntable, the carrier table can perform independent sliding motion while the turntable rotates, so that when the clamping member is aligned with the first and second stamping devices, the sliding driving member drives the carrier table to move downward to place the piece, so as to adapt to the height or position requirements of different processing devices, when the turntable needs to rotate, the sliding driving member drives the carrier table to move upward to avoid collision with each device during rotation.

[0019] The power source is provided by the turntable motor in the turntable driving member, and the cam divider cooperates with the turntable motor to work, ensuring high-precision rotation angle positioning and indexing of the turntable during rotation, adjusting different values for different use cases to improve applicability, the cam divider realizes equidistant switching of the turntable in the axial direction according to the preset angle parameters, and adopts intermittent rotation for feeding, so that the clamping member on the carrier table drives the piece to maintain high positioning accuracy and repeatability, thereby improving the accuracy of processing.

[0020] Preferably, the feeding rack is provided with a feeding device, the feeding device comprises a feeding table and a feeding driving member, the feeding table is slidably connected relative to the feeding rack, and the feeding driving member drives the feeding table to slide upward to lift the piece in the feeding bin.

[0021] The feeding device comprises a feeding driving member and a feeding portion arranged on the feeding driving member, the feeding portion is located above the feeding bin, the feeding portion is slidably connected relative to the machine base, and the feeding driving member drives the feeding portion to slide to push the piece abutting against the feeding portion.

[0022] Through the technical scheme, the tablets are vertically stacked on the feeding table in the feeding bin, the position of the feeding frame is below the feeding part, so that the tablets are vertically aligned with the feeding part, the feeding drive drives the feeding table to slide upward to push the stacked tablets to lift, so that the tablets are close to and abut against the feeding part, and the distance between the lower end surface of the feeding part and the upper end of the feeding bin allows a single tablet to pass through, when the tablets abut against the feeding part, the pushing drive drives the feeding part to push and send out the topmost tablet abutting against the feeding part, and precise feeding is realized.

[0023] Preferably, one side of the feeding table close to the feeding part is provided with an elastic member, when the feeding table abuts against the feeding part, the feeding drive drives the feeding table to slide downward by a distance d, the d is the thickness of the tablet, and the elastic force of the elastic member abuts the tablet against the feeding part.

[0024] Through the technical scheme, when the feeding table abuts against the feeding part, a signal output is generated, the signal is transmitted to the controller to control the lifting drive, and then the feeding drive drives the feeding table to descend by a limited distance d, the value of d is determined according to the thickness of the tablet, the elastic member is arranged between the feeding table and the tablet in the feeding bin, the elastic force of the elastic member acts on the tablet to make it have a tendency to abut against the feeding part, so that the tablet at the top end is abutted against the feeding part by the elastic force, the abrasion between the tablet and other tablets below caused by excessive abutting pressure during feeding is reduced, the breakage rate of the tablet is reduced, and the quality of the tablet is improved.

[0025] Preferably, the machine base is provided with a guide plate, the length direction of the guide plate corresponds to the sliding direction along the feeding part, and the feeding part slides relative to the guide plate, when the tablet is sent out, the guide plate is used for guiding the tablet to form a gap with the feeding part.

[0026] Through the technical scheme, the length direction of the guide plate is consistent with the pushing path of the tablet feeding, the position of the guide plate is fixed relative to the feeding part, the tablet is guided along the length direction of the guide plate, and since the guide plate has an inclined surface and inclines downward away from the feeding part, when the tablet is guided along the inclined surface, the abutting surface of the tablet is separated through the angle difference, and then the tablet and the feeding part are separated from each other to realize feeding.

[0027] Preferably, the feeding device is provided with a detection member, the detection member includes a measurement end and a driving end, the measurement end is slidably connected relative to the machine base, and the driving end drives the measurement end to move for measuring the thickness of the tablet.

[0028] Through the technical scheme, the driving end drives the measuring end to slide and approach the material sheet, and the detection piece accurately detects the thickness of the material sheet; when the measuring end detects that the thickness of the material sheet ready for feeding does not conform to the set tolerance, it indicates that there are multiple material sheets stacked, missing material sheets, or material thickness deviation, the whole device immediately stops running and issues a warning, ensuring that the number of material sheets fed each time conforms to the requirements and is qualified material sheet, thereby ensuring normal operation.

[0029] Preferably, the reciprocating material changing assembly comprises a material changing seat, stamping die seats arranged on the material changing seat, and a reciprocating driving piece, the stamping die seats are provided in two, the stamping die seats are used for placing the material sheet, the material changing seat is slidably connected to the second stamping seat, the sliding direction of the material changing seat is perpendicular to the sliding direction of the second machining head, and the reciprocating driving piece drives the material changing seat to slide for reciprocating movement of the two stamping die seats.

[0030] Through the technical scheme, based on the two stamping die seats being arranged on the material changing seat along the sliding direction thereof, when the material sheet is placed on the stamping die seat below the second machining head from the clamping piece, the reciprocating driving piece drives the material changing seat to slide, so that the stamping die seat carrying the stamped material sheet slides to the discharging device for discharging, and at this time, the other stamping die seat moves to below the second machining head, so that the clamping piece is fed again for processing of the next material sheet, the reciprocating movement of the material changing seat enables the two stamping die seats to be used alternately, most of the time is in a working state, the utilization rate of the equipment is improved, and the stamping efficiency is improved.

[0031] Preferably, the discharging device comprises a discharging seat and a discharging assembly, the discharging seat is provided with a plurality of material storage seats, the material storage seat is provided with a material positioning rod, and the material storage seat is used for stacking the material sheet through the material positioning rod passing through the through hole.

[0032] The discharging assembly comprises a sliding seat slidably connected to the machine base, a sliding driving piece driving the sliding seat to slide, and a discharging part arranged on the sliding seat, the discharging part is slidably connected to the sliding seat, the sliding direction of the discharging part is perpendicular to the sliding direction of the sliding seat, and the sliding seat is provided with a discharging driving piece; when the material sheet moves below the discharging part, the discharging driving piece drives the discharging part to slide, so as to drive the material sheet to move from the stamping die seat to the material storage seat.

[0033] Through the technical scheme, when the stamping die seat carrying the stamped material sheet product moves to the discharging device, the sliding driving piece drives the sliding seat to slide, so that the discharging part moves above the material sheet, the discharging driving piece drives the discharging part to move towards the stamping die seat, the discharging part accurately clamps the material sheet from the stamping die seat and reversely slides to reset, and the sliding driving piece drives the sliding seat again, so that the discharging part moves above the material storage seat and places the material sheet on the material storage seat.

[0034] The blanking seat is provided with a plurality of storage seats for storing and stacking the material sheet products transferred from the stamping die seat, and each storage seat is provided with a material positioning rod which penetrates through the through hole of the material sheet to ensure that the material sheet can be kept in order and alignment during stacking.

[0035] Preferably, the blanking seat is provided with a positioning plate, and the upper end surface of the positioning plate is provided with a guide surface for guiding the material sheet to be stacked in the same plane.

[0036] The blanking seat is provided with an annular channel, and a plurality of storage seats are arranged in the annular channel and distributed in a circumferential direction.

[0037] The annular channel has four channels which are sequentially connected, and the blanking seat is correspondingly provided with four material pushing assemblies which are arranged one-to-one with the four channels for pushing the storage seat to slide in the annular channel.

[0038] Through the above technical solution, the continuous blanking of the material sheet causes the number of stacked material sheets on the storage seat to gradually increase, and the positioning plate guides the material sheet to be stacked in the same plane through the guide surface, thereby avoiding the misalignment of the material sheet and affecting the normal blanking, and improving the accuracy and stability of the material sheet stacking.

[0039] A plurality of storage seats are arranged in the annular channel in a circumferential direction, and the sliding track of each storage seat is limited by the annular channel. The storage seat can perform circumferential motion along the annular channel to form a closed loop movement path. The annular channel is divided into four sequentially connected channels, and the four material pushing assemblies correspond one-to-one with the four channels. When the storage seat needs to be moved, the corresponding material pushing assembly is started to push the storage seat to move along the annular channel to the next position, so that the circulation transfer of the storage seat between different channels can be realized, and the space layout utilization is optimized.

[0040] A production process applied to the stamping forming production line described above, comprising the following steps:

[0041] S1, stacking the material sheet in the feeding bin of the feeding rack;

[0042] S2, starting the feeding device to push the material sheet, and the material sheet is sent out from the feeding bin for feeding;

[0043] S3, starting the station turntable device, the clamping piece clamps the material sheet, the turntable driving piece drives the turntable seat to rotate and switch to the first stamping device, the material sheet moves to below the first machining head, and the clamping piece places the material sheet on the first stamping seat;

[0044] S4, starting the first stamping device, and the first machining head stamps the material sheet;

[0045] S5, the work station turntable device is started, the clamping piece clamps the sheet, the turntable driving part drives the rotation of the steering seat to switch to the second stamping device, the sheet moves to the lower side of the second processing head, and the clamping piece places the sheet on the reciprocating material changing assembly.

[0046] S6, the second stamping device is started, and the second processing head stamps the sheet.

[0047] S7, the work station turntable device is started, the turntable driving part drives the rotation of the steering seat to switch to the feeding device, at the same time, the reciprocating material changing assembly moves the sheet to the discharging device, the discharging device is started, and the discharging device moves out the sheet to discharge.

[0048] S8, the steps of S1, S2, S3, S4, S5, S6 and S7 are repeated to realize cyclic processing.

[0049] Through the above technical scheme, a production process is provided, a plurality of sheets are placed in the material bin of the stacking frame, the sheets are stacked on the feeding table, the feeding device is started, the feeding driving part drives the feeding table to slide upward, the feeding table lifts the sheet, and the sheet abuts against the feeding part; at this time, the feeding driving part drives the feeding table to slide downward, the feeding table descends to make the sheet drop by a height distance d, the compression force between the sheets is released, and the topmost sheet is attached to the lower end face of the feeding part through the elastic force of the elastic piece.

[0050] The feeding device is started, the feeding driving part drives the feeding part to slide forward, the feeding part drives the attached sheet to be sent out of the feeding bin, the sheet is guided along the guide plate and separated from the feeding part, the detection piece is started, and the driving end drives the measuring end to move close to the sheet, and the measuring end detects the thickness of the sheet.

[0051] The work station turntable device is started, the sliding driving part drives the carrier table to slide downward, the carrier table drives the clamping piece to be close to the sheet, the clamping piece clamps the fed sheet, the carrier table is driven to slide upward again, the clamping piece grabs the sheet and lifts up, the turntable motor drives the steering table to rotate, the sheet is switched to the first stamping device through the control of the cam divider, the sheet moves to the lower side of the first processing head, the carrier table is driven to slide downward again, and the clamping piece places the sheet on the first stamping seat.

[0052] The first stamping device is started, the first processing head is close to the first stamping seat, the first processing head stamps the sheet, the sheet is stamped to form a notch and further processes the handle part, and a first-stamped sheet is obtained.

[0053] Start the work station turntable device, the sliding drive member drives the object table to slide downward, the clamping member clamps the first punched piece, the object table is driven to slide upward again, the clamping member picks up the piece, the turntable motor drives the rotating table to rotate, the rotating table drives the piece to switch to the second punching device, the object table is driven to slide downward again, and the clamping member places the piece on the punching die seat in the reciprocating material changing assembly below the second machining head.

[0054] Start the second punching device, the second machining head is close to the punching die seat, the second machining head punches the piece, the piece is punched and bent, and the second punched piece is obtained.

[0055] Start the work station turntable device, the turntable motor drives the rotating table to rotate, the rotating table drives the clamping member to switch to the feeding device, and the next piece clamping is prepared, simultaneously, the reciprocating drive member drives the material changing seat to slide, the punching die seat carries the piece product to switch to the discharging device, the sliding drive member drives the sliding seat to make the discharging part above the piece, the discharging drive member drives the discharging part to slide downward to take out the piece product from the punching die seat, the sliding drive member drives the sliding seat to make the piece product move towards the discharging group, the discharging part moves to be aligned with the material storage seat, and the piece product is placed, the piece product is stacked on the material storage seat through the through hole and the material rod, and the discharging is completed.

[0056] The above steps are repeated to realize cyclic feeding.

[0057] The technical scheme has the following prominent and beneficial technical effects compared with the prior art:

[0058] 1、The technical scheme has the following prominent and beneficial technical effects compared with the prior art:

[0059] 2、The technical scheme has the following prominent and beneficial technical effects compared with the prior art:

[0060] 3、The technical scheme has the following prominent and beneficial technical effects compared with the prior art: BRIEF DESCRIPTION OF DRAWINGS

[0061] Figure 1 Overall structure schematic diagram of the embodiment;

[0062] Figure 2 Overall structure schematic diagram of the embodiment Figure 1 Another perspective schematic diagram;

[0063] Figure 3 Overall structure schematic diagram of the feeding device in the embodiment;

[0064] Figure 4 Overall structure schematic diagram of the embodiment Figure 3 Another perspective schematic diagram;

[0065] Figure 5 Overall structure schematic diagram of the embodiment Figure 3 Partial sectional view schematic diagram;

[0066] Figure 6 Overall structure schematic diagram of the work station turntable device in the embodiment;

[0067] Figure 7 Partial exploded schematic diagram of the work station turntable device in the embodiment Figure 6

[0068] Figure 8 Overall structure schematic diagram of the first stamping device in the embodiment;

[0069] Figure 9 Overall structure schematic diagram of the second stamping device in the embodiment;

[0070] Figure 10 Overall structure schematic diagram of the unloading device in the embodiment;

[0071] Figure 11 Overall structure schematic diagram of the unloading seat in the embodiment;

[0072] Figure 12 Partial exploded schematic diagram of the unloading seat in the embodiment Figure 11

[0073] Figure 13 Overall structure schematic diagram of the elastic member in the embodiment;

[0074] Figure 14 Overall structure schematic diagram of the tablet before feeding and after the first and second stamping in the background art.

[0075] ​​Label: 1, machine base; 2, feeding frame; 3, feeding device; 31, feeding driving part; 32, feeding part; 4, first punching device; 41, first processing head; 42, first punching seat; 5, second punching device; 51, second processing head; 52, second punching seat; 53, reciprocating material changing assembly; 531, material changing seat; 532, punching die seat; 533, reciprocating driving part; 6, discharging device; 61, discharging seat; 62, discharging assembly; 621, sliding seat; 622, sliding driving part; 623, discharging part; 7, work station turntable device; 71, turning seat; 711, turning table; 712, object carrying table; 72, turntable driving part; 721, turntable motor; 722, cam divider; 73, clamping part; 8, sliding driving part; 9, feeding device; 91, feeding table; 92, feeding driving part; 10, feeding bin; 11, elastic part; 12, guide plate; 14, detection part; 141, measurement end; 142, driving end; 15, storage seat; 16, material positioning rod; 17, discharging driving part; 18, positioning plate; 19, guide surface; 20, annular channel; 21, channel; 22, pushing assembly; 100, sheet; 200, through hole; 300, indentation; 400, handle groove; 500, handle part. DETAILED DESCRIPTION

[0076] The specific embodiments of the technical solution will be described in further detail below with reference to the drawings.

[0077] Embodiment:

[0078] Referring to Figure 1 and Figure 2 A punching forming production line, comprising a machine base 1, a feeding device 3, a first punching device 4, a second punching device 5 and a work station turntable device 7 are installed on the machine base 1, the work station turntable device 7 is located at the center position of the machine base 1, the feeding device 3, the first punching device 4 and the second punching device 5 are distributed clockwise around the work station turntable device 7, in this embodiment, the first punching device 4 and the second punching device 5 are symmetrically installed on both sides of the work station turntable device 7, and the feeding device 3 is located on one side of the work station turntable device 7, the distribution direction of the feeding device 3 and the work station turntable device 7 is perpendicular to the distribution direction of the first punching device 4 and the second punching device 5.

[0079] Referring to Figure 6 and Figure 7The work station turntable device 7 comprises a steering seat 71, a turntable driving member 72 and a plurality of clamping members 73. The steering seat 71 is rotationally connected relative to the machine base 1. Specifically, the steering seat 71 comprises a steering table 711 and a carrier table 712. The steering table 711 is arranged on the turntable driving member 72. The carrier table 712 is located on the side of the steering table 711 away from the turntable driving member 72. The turntable driving member 72 comprises a turntable motor 721 and a cam divider 722 arranged on the turntable motor 721. The turntable motor 721 drives the steering table 711 to rotate and drives the carrier table 712 to synchronously rotate through the cam divider 722, so as to realize the rotation of the steering seat 71 along the circumferential direction around the rotation axis. The cam divider 722 can control the rotation angle of the steering seat 71 in each rotation to realize equidistant switching.

[0080] The clamping members 73 are provided in four. The clamping members 73 are used for clamping the material sheet 100. Each clamping member 73 can adopt a pneumatic finger. The four clamping members 73 are mounted on the upper end surface of the carrier table 712 and are uniformly distributed along the circumferential direction around the rotation axis. In the embodiment, the cam divider 722 controls the rotation angle of the steering seat 71 in each rotation to be 90°. Each clamping member 73 can be aligned with the feeding device 3, the first stamping device 4 and the second stamping device 5, respectively. Thus, the position of each clamping member 73 carrying the material sheet 100 is switched by the feeding device 3, the first stamping device 4 and the second stamping device 5 in sequence. The steering seat 71 continuously rotates to realize the circulation processing flow of the material sheet 100.

[0081] The carrier table 712 is slidingly connected to the steering table 711. The sliding direction of the carrier table 712 is parallel to the rotation axis of the steering table 711. The steering table 711 is provided with a sliding driving member 8. The sliding driving member 8 can adopt a pneumatic cylinder or a motor. The sliding driving member 8 is provided in four. Each sliding driving member 8 is located on the side of the carrier table 712 away from the steering table 711. The four sliding driving members 8 are uniformly distributed on the carrier table along the circumferential direction around the rotation axis of the steering table 711 and are fixed to the upper end surface of the carrier table 712. In the embodiment, the sliding of the carrier table 712 relative to the steering table 711 is guided by a guide sleeve and a guide shaft.

[0082] Referring to Figure 3 and Figure 4, the base 1 is provided with a feeding frame 2, the feeding frame 2 is provided with two, the two feeding frames 2 are controlled to realize rotation standby material use, each feeding frame 2 has a feeding bin 10, the feeding bin 10 is formed with an opening corresponding to the upper end face of the feeding frame 2, a plurality of material pieces 100 are vertically stacked in the feeding bin 10 through the opening and used, the feeding frame 2 is provided with a feeding device 9, the feeding device 9 is provided with two, the two feeding devices 9 are correspondingly arranged on the two feeding frames 2, each feeding device 9 comprises a feeding table 91 and a feeding driving part 92, the feeding driving part 92 can adopt a servo motor, the feeding table 91 is slidingly connected in the corresponding feeding bin 10, and the sliding direction is vertically arranged towards the opening, the stacked material pieces 100 are placed on the feeding table 91, the feeding driving part 92 is located below the feeding frame 2 and the output shaft is connected with the feeding table 91, the feeding driving part 92 drives the feeding table 91 to slide up and down to drive the stacked material pieces 100 to lift or fall, so that the material pieces 100 are sent out from the opening of the feeding bin 10.

[0083] The feeding device 3 comprises a feeding driving part 31 and a feeding part 32, the feeding device 3 is located above the feeding frame 2, the feeding driving part 31 can adopt a motor or a cylinder, the feeding part 32 is arranged on the output shaft of the feeding driving part 31 and is relatively close to the feeding frame 2, so that the feeding part 32 can be aligned with the opening of the feeding bin 10, and the material piece 100 can abut against the lower end face of the feeding part 32 after being lifted, the feeding part 32 is slidingly connected relative to the base 1, and the sliding direction of the feeding part 32 is parallel to the distribution direction of the feeding device 3 and the station turntable device 7.

[0084] Referring to Figure 5 and Figure 13 , one side of the feeding table 91 close to the feeding part 32 is provided with an elastic element 11, the elastic element 11 shown in the embodiment can be composed of several material pieces 100 with a certain bending radius, the elastic element 11 abuts between the material piece 100 and the feeding table 91, in the embodiment, the output shaft of the feeding driving part 92 has a thread, and the feeding driving part 92 and the lifting table are adjusted to slide through the pitch, when the feeding table 91 abuts the material piece 100 against the feeding part 32, the rotation angle and rotation amplitude of the output shaft of the feeding driving part 92 are adjusted to realize the feeding table 91 to retreat by calculating the pitch size corresponding to the thickness of a single material piece 100, the material piece 100 is lowered by the feeding table 91 and the distance is d, d is the thickness corresponding to a single material piece 100, the pressure of the material piece 100 abutting against the feeding part 32 is reduced, the material piece 100 has a tendency to abut against the feeding part 32 by the elastic force of the elastic element 11, the material piece 100 is flattened on the lower end face of the feeding part 32, at this time, the feeding driving part 31 drives the feeding part 32 to slide forward, the feeding part 32 drives the abutting material piece 100 to be sent to the station turntable device 7 for feeding, alternatively, the elastic element 11 can also adopt a plurality of reset springs arranged horizontally.

[0085] The machine base 1 is provided with a guide plate 12, which is long strip-shaped, and the length direction of the guide plate 12 corresponds to the sliding direction of the feeding part 32, so that one end of the guide plate 12 extends below the feeding part 32 and is in contact with the feeding part 32, and the other end extends towards the position of the work station turntable device 7. In the embodiment shown, the lower end surface of the guide plate 12 is an inclined surface, which is inclined downward in a direction away from the feeding part 32. The feeding part 32 slides relative to the guide plate 12. When the sheet 100 is fed out, the guide plate 12 is used to guide the sheet 100 so that a gap is formed between the sheet 100 and the feeding part 32.

[0086] The feeding device 3 is provided with a detection piece 14, which is located on the side of the feeding device 3 close to the work station turntable device 7. In the embodiment shown, the detection piece 14 can specifically adopt a displacement sensor. The detection piece 14 includes a measuring end 141 and a driving end 142. The driving end 142 can adopt a pneumatic cylinder or a motor. The measuring end 141 is arranged on the output shaft below the driving end 142, so that the measuring end 141 can be aligned with the position of the feeding of the sheet 100. When there is a sheet 100 below the detection piece 14, the driving end 142 drives the measuring end 141 to slide downward, the measuring end 141 abuts against the sheet 100 and measures the thickness of the sheet 100. When the thickness of the sheet 100 does not meet the set tolerance, a feedback signal is generated to immediately stop the operation of the device and issue a warning, and the sheet 100 is replaced for corresponding adjustment. When the detection value is close to the thickness value of two or more sheets 100, it indicates that there are two or more sheets 100, and the excess sheet 100 needs to be taken out and one sheet 100 is retained. Alternatively, when the detection value is larger or smaller than the thickness of one sheet 100, it indicates that the thickness deviation of the sheet 100 is large and does not meet the requirements for subsequent use. The sheet 100 with a thickness that does not meet the requirements is replaced. At the same time, when the detection value cannot be obtained or is close to zero, it indicates that there is no sheet 100 in the feeding, so that the absence of sheets at the feeding position is avoided, and the sheet 100 in the feeding bin 10 needs to be replenished in time.

[0087] Referring to Figure 8 , the first punching device 4 includes a first machining head 41 and a first punching seat 42. The first punching seat 42 is used for placing the sheet 100. The first machining head 41 is slidably connected to the machine base 1. When the sheet 100 moves below the first machining head 41, the first machining head 41 moves in the sliding direction towards the sheet 100 on the first punching seat 42 to punch the sheet 100. In the present embodiment, the position of the first machining head 41 close to the sheet 100 is provided with two protrusions which are adapted to the shape of the handle grooves 400. Based on the fact that the handle portions 500 extend in the handle grooves 400, the two protrusions correspond to the two handle grooves 400 one by one. The protrusions correspond to the handle portions 500 and are used to bend the handle portions 500 downward. The first machining head 41 is used to punch the two concave marks 300 on the sheet 100.

[0088] Referring to Figure 9 , the second punching device 5 comprises a second machining head 51, a second punching seat 52 and a reciprocating material changing assembly 53, the second punching seat 52 is installed on the machine base 1, the reciprocating material changing assembly 53 is installed on the second punching seat 52, and the reciprocating material changing assembly 53 can place a material sheet 100 thereon, the material sheet 100 is the material sheet 100 after the first punching, and the reciprocating material changing assembly 53 is used to drive the material sheet 100 to move reciprocally, and the reciprocating material changing assembly 53 comprises a material changing seat 531, a punching die seat 532 provided on the material changing seat 531 and a reciprocating driving member 533, the material changing seat 531 is slidably connected to the second punching seat 52, the punching die seat 532 is provided with two, the two punching die seats 532 are located at the upper end face of the material changing seat 531 in a spaced manner, and the spacing direction is arranged along the sliding direction of the material changing seat 531, and each of the punching die seats 532 can place a material sheet 100 thereon, and the reciprocating driving member 533 can adopt a pneumatic cylinder, a motor or an oil cylinder, and the reciprocating driving member 533 drives the material changing seat 531 to move reciprocally.

[0089] The second machining head 51 is slidably connected to the machine base 1, and the sliding direction of the second machining head 51 is perpendicular to the sliding direction of the material changing seat 531, one of the punching die seats 532 moves to the lower side of the second machining head 51 after the material changing seat 531 slides, the second machining head 51 is driven to slide for punching the material sheet 100 on the punching die seat 532, so that the material sheet 100 is bent into a required shape.

[0090] Referring to Figure 1 and Figure 10 , the machine base 1 is provided with two material unloading devices 6, the two material unloading devices 6 are respectively located on the two sides of the second punching device 5, and the distribution positions of the two material unloading devices 6 are parallel to the sliding direction of the material changing seat 531, so that the positions of the two punching die seats 532 can correspond to the two material unloading devices 6 one by one when the material changing seat 531 slides, the material unloading device 6 comprises a material unloading seat 61 and a material unloading assembly 62, the material unloading seat 61 is provided with a material storage seat 15, the material unloading assembly 62 comprises a sliding seat 621, a sliding driving member 622 and a material unloading part 623, the sliding seat 621 is slidably connected to the machine frame, the sliding direction of the sliding seat 621 is arranged horizontally, the material unloading part 623 is arranged below the sliding seat 621, the sliding driving member 622 drives the sliding seat 621 to slide and drives the material unloading part 623, and the two ends of the sliding direction of the sliding seat 621 are arranged above the positions of the punching die seat 532 and the material storage seat 15 one by one.

[0091] The blanking part 623 is used for installing pneumatic fingers. The pneumatic fingers are installed on the lower end surface of the blanking part to clamp the material sheet 100. The blanking part 623 is slidingly connected to the sliding seat 621. The sliding direction of the blanking part 623 is perpendicular to the sliding direction of the sliding seat 621. The sliding seat 621 is provided with a blanking driving member 17. The blanking driving member 17 can be a pneumatic cylinder or a motor. The blanking part 623 is arranged on the output shaft of the blanking driving member 17. The blanking driving member 17 drives the blanking part 623 to slide up and down. The blanking part 623 can drive the punched material sheet 100 to move from the punching die seat 532 to the storage seat 15.

[0092] Referring to Figure 11 and Figure 12 The upper end surface of the blanking seat 61 is provided with an annular channel 20. The annular channel 20 includes four channels 21 that are sequentially connected. The four channels 21 are sequentially connected to form a closed loop. The four channels 21 are spliced to form a rectangle. The storage seat 15 is provided with a plurality of storage seats 15. The size of each storage seat 15 is adapted to the annular channel 20 and is sequentially arranged along the circumferential direction of the annular channel 20. In this example, it is shown that up to four material receiving seats can be arranged in each channel 21. Each storage seat 15 is slidingly connected in the annular channel 20. The annular channel 20 corresponds to the sliding path of the storage seat 15.

[0093] The blanking seat 61 is provided with a positioning plate 18. The positioning plate 18 is fixed in position. The blanking seat 61 is correspondingly provided with four material pushing assemblies 22. The four material pushing assemblies 22 are arranged one-to-one corresponding to the four channels 21. The four material pushing assemblies 22 respectively push the storage seat 15 to slide in each channel 21. When the storage seat 15 slides along the annular channel 20, the storage seat 15 can be located at the positioning plate 18. The storage seat 15 has a material positioning rod 16 that is vertically fixed to the upper end surface of the storage seat 15. Based on the material sheet 100 having a through hole 200, the material positioning rod 16 is used to pass through the through hole 200. The upper end surface of the positioning plate 18 has a guide surface 19 that is inclined downward in the direction of the storage seat 15. The guide surface 19 is used to guide the material sheet 100 to the same plane on the storage seat 15.

[0094] Referring to Figure 14The processing flow of sheet 100 includes three states: sheet 100 ready for loading, sheet 100 after the first stamping, and sheet 100 after stamping. The sheet 100 ready for loading has a through hole 200 located in the middle of the sheet 100. The sheet 100 also has two handle grooves 400, which are symmetrically located at both ends of the through hole 200 along the length of the sheet 100. Each handle groove 400 extends a handle portion 500. After the sheet 100 is stamped for the first time, two indentations 300 are formed on the sheet 100 after the first stamping. The two indentations 300 are symmetrically located on both sides of the through hole 200 along the width of the sheet. The two handle portions 500 are bent in the same direction. After the sheet 100 is stamped for the second time, the two sides of the stamped sheet 100 are bent in the same direction. The handle portions 500 are used for gripping.

[0095] The specific work process of this plan is as follows:

[0096] This technical solution utilizes a feeding rack 2 on the machine base 1 with a feeding bin 10. Sheets 100 are stacked in the feeding bin 10 for preparation. A driving feeding device 3 causes the stacked sheets 100 to be fed into the processing flow one by one from top to bottom. A clamping member 73 on the station turntable device 7 grips a sheet 100. The turntable drive member 72 drives the steering seat 71 to rotate the sheet 100, switching it to the first stamping device 4. The first processing head 41 accurately stamps the sheet 100 on the first stamping seat 42, forming a concave 300 and a processing handle 500. Through stamping, the sheet 100 after the first stamping is obtained. 00 switches to the second stamping device 5, where the second processing head 51 stamps the aforementioned sheet 100. The sheet 100 is obtained after the second stamping. The reciprocating material changing component 53 drives the sheet 100 to move toward the unloading device 6. The unloading device 6 moves the sheet 100 out to complete the unloading. Each sheet 100 is sequentially switched to the positions of the first stamping device 4 and the second stamping device 5 for two-stage processing. The devices corresponding to each processing step are arranged circumferentially around the station turntable device 7, realizing the compactness and integration of the production line, optimizing the spatial layout of the production and processing flow, and improving the space utilization rate.

[0097] A production process includes the following steps: S1, placing several sheet pieces 100 in the hopper of a stacking rack, stacking the sheet pieces 100 on a feeding platform 91, starting the feeding device 9, and driving the feeding drive 92 to drive the feeding platform 91 to slide upward, lifting the sheet pieces 100, and the sheet pieces 100 abutting against the loading part 32. At this time, the feeding drive 92 drives the feeding platform 91 to slide downward, and the lowering of the feeding platform 91 causes the sheet pieces 100 to drop a height distance of d, relaxing the clamping force between the sheet pieces 100, and using the elastic force of the elastic member 11 to press the top sheet piece 100 against the lower end face of the loading part 32.

[0098] S2, the loading device 3 is started, the loading driving part 31 drives the loading part 32 to slide forward, the loading part 32 drives the abutting sheet 100 to send out the feeding bin 10, the sheet 100 is guided along the guide plate 12 and separated from the loading part 32, the detection part 14 is started, the driving end 142 drives the measuring end 141 to move close to the sheet 100, and the measuring end 141 detects the thickness of the sheet 100.

[0099] S3, the work station turntable device 7 is started, the sliding driving part 8 drives the object table 712 to slide downward, the object table 712 drives the clamping part 73 to be close to the sheet 100, the clamping part 73 clamps the sheet 100 loaded, the object table 712 is driven to slide upward again, the clamping part 73 lifts the sheet 100, the turntable motor 721 drives the rotating table 711 to rotate, the sheet 100 is switched to the first punching device 4 through the cam divider 722, the sheet 100 moves below the first machining head 41, and the object table 712 is driven to slide downward again, and the clamping part 73 places the sheet 100 on the first punching seat 42.

[0100] S4, the first punching device 4 is started, the first machining head 41 is close to the first punching seat 42, the first machining head 41 punches the sheet 100, the sheet 100 is punched to form a concave 300 and further processes a handle part 500, and a first punched sheet 100 is obtained.

[0101] S5, the work station turntable device 7 is started, the sliding driving part 8 drives the object table 712 to slide downward, the clamping part 73 clamps the first punched sheet 100, the object table 712 is driven to slide upward again, the clamping part 73 lifts the sheet 100, the turntable motor 721 drives the rotating table 711 to rotate, the rotating table 711 drives the sheet 100 to switch to the second punching device 5, the object table 712 is driven to slide downward again, and the clamping part 73 places the sheet 100 on the punching die seat 532 in the reciprocating material changing assembly 53 below the second machining head 51.

[0102] S6, the second punching device 5 is started, the second machining head 51 is close to the punching die seat 532, the second machining head 51 punches the sheet 100 for the second time, the sheet 100 is punched and bent, and a second punched sheet 100 is obtained.

[0103] S7, the work station turntable device 7 is started, the turntable motor 721 drives the rotating table 711 to rotate, the rotating table 711 drives the clamping piece 73 to switch to the feeding device 3, and the next piece of material 100 is clamped, at the same time, the reciprocating driving piece 533 drives the material changing seat 531 to slide, the stamping die seat 532 carries the finished piece of material 100 to switch to the discharging device 6, the sliding driving piece 622 drives the sliding seat to make the discharging part 623 located above the piece of material 100, the discharging driving piece 17 drives the discharging part 623 to slide downward to carry the finished piece of material 100 out of the stamping die seat 532, the sliding driving piece 622 drives the sliding seat to make the finished piece of material 100 move towards the discharging group, the discharging part 623 moves to be aligned with the material storage seat 15, and the finished piece of material 100 is discharged, the finished piece of material 100 is stacked on the material storage seat 15 through the through hole 200 and the fixed material rod 16, and the discharging is completed.

[0104] S8, the steps of S1, S2, S3, S4, S5, S6 and S7 are repeated to realize the cyclic feeding.

[0105] The basic principle and main features of the technical scheme and the advantages of the technical scheme are shown and described. It should be understood by those skilled in the art that the technical scheme is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only to illustrate the principle of the technical scheme, and various changes and improvements can be made without departing from the spirit and scope of the technical scheme, and these changes and improvements all fall within the scope of the claimed technical scheme. The scope of protection of the technical scheme is defined by the appended claims and their equivalents.

Claims

1. A press forming line comprising a machine bed (1), characterized in that: The machine base (1) is provided with a feeding frame (2), the feeding frame (2) has a feeding bin (10) for stacking feeding sheets (100), the feeding frame (2) is provided with a feeding device (9), the feeding device (9) comprises a feeding table (91) and a feeding driving member (92), the feeding table (91) is slidingly connected relative to the feeding frame (2), and the feeding driving member (92) drives the feeding table (91) to slide upward for lifting the sheet (100) in the feeding bin (10); The machine base (1) is provided with a feeding device (3), the feeding device (3) comprises a feeding driving member (31) and a feeding part (32) arranged on the feeding driving member (31), the feeding part (32) is located above the feeding bin (10), the feeding part (32) is slidingly connected relative to the machine base (1), and the feeding driving member (31) drives the feeding part (32) to slide for pushing the sheet (100) abutting against the feeding part (32) out of the feeding bin (10) for feeding; The feeding table (91) is provided with an elastic member (11) on one side close to the feeding part (32), when the feeding table (91) abuts the sheet (100) against the feeding part (32), the feeding driving member (92) drives the feeding table (91) to slide downward, and the sliding distance is d, the d is the thickness corresponding to the sheet (100), and the elastic force of the elastic member (11) abuts the sheet (100) against the feeding part (32) closely; The machine base (1) is provided with a first stamping device (4), the first stamping device (4) comprises a first machining head (41) and a first stamping seat (42) which are slidingly connected to the machine base (1), and the first machining head (41) moves towards the first stamping seat (42) for stamping the sheet (100) on the first stamping seat (42); The machine base (1) is also provided with a second stamping device (5), the second stamping device (5) comprises a second machining head (51) slidingly connected to the machine base (1), a second stamping seat (52) arranged on the machine base (1) and a reciprocating material changing assembly (53) arranged on the second stamping seat (52), the reciprocating material changing assembly (53) is used for driving the sheet (100) to move reciprocatingly, when the sheet (100) moves to below the second machining head (51), the second machining head (51) moves towards the reciprocating material changing assembly (53) to stamp the sheet (100); The machine base (1) is provided with a discharging device (6), when the sheet (100) moves to the discharging device (6), the discharging device (6) is used for moving the sheet (100) out of the reciprocating material changing assembly (53) to realize discharging. The machine base (1) is provided with a work station rotary table device (7), the work station rotary table device (7) includes a rotating seat (71) rotatably connected to the machine base (1), a rotary table driving element (72) provided on the machine base (1), and a plurality of clamping elements (73) uniformly distributed around the rotating axis of the rotating seat (71), the clamping elements (73) are used for clamping the material sheet (100), and the rotating seat (71) is driven by the rotary table driving element (72), the rotating seat (71) rotates to switch the material sheet (100) along the circumference from the feeding device (3), the first punching device (4) and the second punching device (5) in sequence.

2. The press forming line according to claim 1, characterized by: The rotating seat (71) includes a rotating table (711) and a carrier table (712) slidably connected to the rotating table (711), the clamping elements (73) are arranged on the carrier table (712), the sliding direction of the carrier table (712) is parallel to the rotating axis of the rotating table (711), and the rotating table (711) is provided with a sliding driving element (8), the sliding driving element (8) drives the carrier table (712) to slide to drive the clamping elements (73) to move up and down. The rotary table driving element (72) includes a rotary table motor (721) and a cam divider (722) provided on the rotary table motor (721), the rotary table motor (721) drives the rotating table (711) to rotate through the cam divider (722), and the cam divider (722) is used to control the rotating angle of the rotating table (711) to realize equidistant switching.

3. The press forming line according to claim 1, characterized by: The machine base (1) is provided with a guide plate (12), the length direction of the guide plate (12) corresponds to the sliding direction along the feeding portion (32), and the feeding portion (32) slides relative to the guide plate (12); when the material sheet (100) is fed out, the guide plate (12) is used for guiding the material sheet (100) to form a gap with the feeding portion (32).

4. The press forming line according to claim 1, characterized by: The feeding device (3) is provided with a detection element (14), the detection element (14) includes a measuring end (141) and a driving end (142), the measuring end (141) is slidably connected relative to the machine base (1), and the driving end (142) drives the measuring end (141) to move for measuring the thickness of the material sheet (100).

5. The press forming line according to claim 1, characterized by: The reciprocating material changing assembly (53) includes a material changing seat (531), a punching die seat (532) provided on the material changing seat (531), and a reciprocating driving element (533), the punching die seat (532) is provided with two, the punching die seat (532) is used for placing the material sheet (100), the material changing seat (531) is slidably connected to the second punching seat (52), the sliding direction of the material changing seat (531) is perpendicular to the sliding direction of the second machining head (51), and the reciprocating driving element (533) drives the material changing seat (531) to slide to make the two punching die seats (532) reciprocate.

6. The press forming line according to claim 5, characterized by: The blanking device (6) comprises a blanking seat (61) and a blanking assembly (62), the blanking seat (61) is provided with a plurality of material storage seats (15), the material storage seat (15) is provided with a material positioning rod (16), and the material storage seat (15) is used for stacking the material sheet (100) through the through hole (200) by the material positioning rod (16); The blanking assembly (62) comprises a sliding seat (621) slidably connected to the machine base (1), a sliding driving piece (622) for driving the sliding of the sliding seat (621), and a blanking part (623) arranged on the sliding seat (621), the blanking part (623) is slidably connected to the sliding seat (621), the sliding direction of the blanking part (623) is perpendicular to the sliding direction of the sliding seat (621), the sliding seat (621) is provided with a blanking driving piece (17), when the material sheet (100) moves below the blanking part (623), the blanking driving piece (17) drives the blanking part (623) to slide up and down with the material sheet (100), and the blanking driving piece (17) drives the blanking part (623) to slide for moving the material sheet (100) from the stamping die seat (532) to the material storage seat (15).

7. The press forming line according to claim 6, characterized by: The blanking seat (61) is provided with a positioning plate (18), the upper end surface of the positioning plate (18) is provided with a guide surface (19), and the guide surface (19) is used for guiding the material sheet (100) to the same plane for stacking; The blanking seat (61) is provided with an annular channel (20), a plurality of material storage seats (15) are located in the annular channel (20) and are distributed in the circumferential direction, and each material storage seat (15) is slidably connected in the annular channel (20); The annular channel (20) has four channels (21), the four channels (21) are sequentially communicated, the blanking seat (61) is correspondingly provided with four material pushing assemblies (22), and the four material pushing assemblies (22) are arranged in one-to-one correspondence with the four channels (21) and are used for pushing the material storage seat (15) to slide around the annular channel (20).

8. A production process characterized by: The application is applied to the stamping forming production line in claim 1, and comprises the following steps: S1, stacking the material sheet (100) in the material supply bin (10) of the material supply rack (2); S2, starting the feeding device (3) to push the material sheet (100), and the material sheet (100) is sent out from the material supply bin (10) for feeding; S3, starting the work station turntable device (7), the clamping piece (73) clamps the material sheet (100), the turntable driving piece (72) drives the rotation of the turntable seat (71) to switch to the first stamping device (4), the material sheet (100) moves below the first machining head (41), and the clamping piece (73) places the material sheet (100) on the first stamping seat (42); S4, starting the first stamping device (4), and the first machining head (41) stamps the material sheet (100). S5, the work station turntable device (7) is started, the clamping piece (73) clamps the sheet (100), the turntable driving part (72) drives the rotation of the rotating seat (71) to switch to the second punching device (5), the sheet (100) moves to below the second machining head (51), the clamping piece (73) places the sheet (100) on the reciprocating material changing assembly (53); S6, the second punching device (5) is started, and the second machining head (51) punches the sheet (100); S7, the work station turntable device (7) is started, the turntable driving part (72) drives the rotation of the rotating seat (71) to switch to the feeding device (3), at the same time, the reciprocating material changing assembly (53) moves the sheet (100) to the discharging device (6), the discharging device (6) is started, and the discharging device (6) removes the sheet (100) to discharge; S8, the steps of S1, S2, S3, S4, S5, S6 and S7 are repeated to realize cyclic processing.

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