CN205732488U - A kind of punching produces main frame - Google Patents

A kind of punching produces main frame Download PDF

Info

Publication number
CN205732488U
CN205732488U CN201620694355.XU CN201620694355U CN205732488U CN 205732488 U CN205732488 U CN 205732488U CN 201620694355 U CN201620694355 U CN 201620694355U CN 205732488 U CN205732488 U CN 205732488U
Authority
CN
China
Prior art keywords
support
cylinder
punching
seat
shaft
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn - After Issue
Application number
CN201620694355.XU
Other languages
Chinese (zh)
Inventor
李志刚
陈晓萍
吕多勇
路光华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ji'nan Tianchen Aluminum Machine Co Ltd
Original Assignee
Ji'nan Tianchen Aluminum Machine Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ji'nan Tianchen Aluminum Machine Co Ltd filed Critical Ji'nan Tianchen Aluminum Machine Co Ltd
Priority to CN201620694355.XU priority Critical patent/CN205732488U/en
Application granted granted Critical
Publication of CN205732488U publication Critical patent/CN205732488U/en
Withdrawn - After Issue legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Abstract

The utility model discloses a kind of punching and produce main frame, including base, fixed base, mobile support, mould changing device, material pressing device, positioner, floating support device, servo power device, hydraulic power unit and electrical control gear.Described fixed base is fixed on base, and described mobile support can move as Y-direction by the guide rail along base.Described servo power device is fixed on base.It is characterized in that: in fixed base and mobile support, be separately installed with fluid power cylinder, pressure head, mould bases, mould changing device is installed on pressure head, internally installed has resilient mounting, mould bases is provided with upside material pressing device, side material pressing device, plunger rod, drift nut, drift, die.The technical solution of the utility model, easy to operate, automaticity is high, improves machining accuracy, decreases the number of working processes, reduce processing cost, improves production efficiency.

Description

A kind of punching produces main frame
Technical field
This utility model relates to sectional bar processing equipment technical field, is applied to the type such as shaped steel and aluminum alloy pattern plate particularly to one The punching processing main frame of material.
Background technology
All kinds of steel buildings being made up of various shaped steel, use the shaped steel being bolted in a large number, various for realizing Bolt between steel connects, and needs to process various hole on shaped steel.Aluminum alloy pattern plate as building material with its environmental protection, green, make Also extensively applied by building trade with low cost, the various features such as recyclable, during use, between aluminum alloy pattern plate, be also required to spiral shell peg or a pin Nail connects, and is therefore also required to the integral multiple every 50 or 50 millimeters on aluminum alloy pattern plate and rushes a connecting hole.At present, domestic steel construction The process equipment of industry is mainly based on boring production line, and its processing mode is boring, and the subject matter existed is working (machining) efficiency Low;The process equipment of domestic aluminum alloy pattern plate industry is mainly based on separate unit perforating press, and its processing mode is unit punch pattern, by people Work is taken and is first rushed the hole on a side wing on perforating press after section bar, by workpiece turning after completing, then rushes on opposite side wing plate , there is the drawbacks such as safety coefficient is low, working strength is big, cost of labor is high, production efficiency is low in hole;When having on workpiece between different holes Away from time, the drift being not required to punching position can only be pulled down to ensure pitch of holes, particularly when there being multiple different pitch of holes on workpiece Time working (machining) efficiency is the lowest even cannot realize, punching of the present utility model produces main frame and can be applicable in production line, fills in feeding The lower processing that can realize any pitch of holes of the auxiliary put.
Summary of the invention
The purpose of this utility model is to overcome limitation and the drawback of existing processing mode, it is provided that a kind of easy to operate, certainly The punching that dynamicization degree is high, machining accuracy is high, the number of working processes is short, production efficiency is high produces main frame.
This utility model be the technical scheme is that for achieving the above object
A kind of punching produces main frame, including base and hole punched device, hydraulic power unit and electrical control gear, its feature It is: described base is provided with fixed base, mobile support and mobile frame driving device, and described hole punched device includes a left side Hole punched device and right hole punched device, left hole punched device is arranged on mobile support, and right hole punched device is arranged in fixed base.
In this utility model, described base is provided with the first guide rail, and the mobile mobile support of frame driving device driving can Move along the first guide rail as Y-direction;
Mobile frame driving device includes:
Servo power device, is fixed on base,
Leading screw, one end is connected with servo power device,
Screw, is connected to mobile support bottom, is meshed with leading screw;
Described left hole punched device is identical with right hole punched device structure, be symmetrically arranged.
In technique scheme, described left hole punched device includes,
Mould bases, including left riser, right riser and base plate, cross section takes the shape of the letter U, and is fixed on the right-hand member of mobile support by base plate, For strengthening mould bases rigidity, left and right riser and base plate can be integral type structure;
At least one die, is arranged on the right riser of mould bases,
Drift, corresponding with die, left end is connected on plunger rod,
Plunger rod, can slide in the pilot hole of the left riser of mould bases, and right-hand member is connected with drift by drift nut, and left end sets There is T-shaped head,
Fluid power cylinder, is fixed on the left end of mobile support,
Second guide rail, is fixed on mobile support,
Pressure head, between mould bases and fluid power cylinder, can move along the second guide rail as Y-direction, left surface and hydraulic power The rod end of cylinder is connected, and right-hand member is provided with the vertical T-slot corresponding with plunger rod, and the T-shaped head of plunger rod is positioned at this T-slot, punching It is provided with die change hole between T-shaped head and the bottom surface of T-slot of head rod,
Mould changing device, corresponding with plunger rod, it is installed on pressure head,
Resilient mounting, is arranged between pressure head and plunger rod so that the T-shaped head of plunger rod all the time away from the bottom surface of T-slot,
Upside material pressing device, is installed on the top of the left riser of mould bases,
Side material pressing device, is installed on the right side of the left riser of mould bases.
In technique scheme, described upside material pressing device include air cylinder support, upper lateral pressing cylinder, guide pillar, guide pin bushing, Oilless bearing, upper holding pad, upper binder block;Bottom on the left of air cylinder support is connected to the top of the left riser of mould bases, upper side pressure Material cylinder is mounted vertically in the bottom on the right side of air cylinder support, and the piston rod of upper lateral pressing cylinder is connected with upper holding pad, leads Set is arranged on air cylinder support, is provided with oilless bearing inside guide pin bushing, and guide pillar can slide along oilless bearing, and the lower end of guide pillar is with upper Holding pad is connected, and upper binder block is connected on the bottom surface of holding pad.
In technique scheme, described upside material pressing device can also use following structure: includes air cylinder support, upside Binder cylinder, guide pillar, guide pin bushing, linear bearing, upper holding pad, upper binder block;Bottom on the left of air cylinder support is connected to mould bases The top of left riser, upper lateral pressing cylinder is mounted vertically in the bottom on the right side of air cylinder support, the piston rod of upper lateral pressing cylinder Being connected with upper holding pad, guide pin bushing is arranged on air cylinder support, is provided with linear bearing inside guide pin bushing, and guide pillar can linearly bearing Sliding, the lower end of guide pillar is connected with upper holding pad, and upper binder block is connected on the bottom surface of holding pad.
In technique scheme, described upside material pressing device can also use following structure: includes air cylinder support, multiaxis Cylinder, upper holding pad, upper binder block;Bottom on the left of air cylinder support is connected to the top of the left riser of mould bases, and multiaxis cylinder erects To the bottom being arranged on the right side of air cylinder support, the piston rod of multiaxis cylinder is connected with upper holding pad, and upper binder block is connected to On the bottom surface of upper holding pad.
The effect of upside material pressing device is from workpiece pressing above, positions workpiece, particularly has slightly at workpiece Deform and in the case of dislocation, warpage, it is ensured that machining accuracy.
In technique scheme, described side material pressing device includes side fluid power cylinder, side pressure flitch, lateral pressing Block;Side fluid power cylinder is arranged on the medial surface of the right riser of mould bases, side pressure flitch and the piston rod of side fluid power cylinder Being connected, lateral pressing block is connected with side pressure flitch;Lateral pressing block is equipped with the through hole corresponding with drift with on side pressure flitch, Drift can pass from through hole.
The effect one of side material pressing device is binder, i.e. from lateral surface compressing workpiece, prevent in punch process workpiece deformation and Dislocation;Another effect is discharging, is automatically separated with drift by the workpiece that punching press is good, prevents drift from leaving the edge of die hole when And surrounding produces the deformation such as warpage and is taken up by workpiece.
In technique scheme, described resilient mounting includes spring and spring shaft;Between left section and right section of spring shaft Being provided with bulge loop, spring housing is contained in left section of spring shaft, spring shaft be installed on pressure head arrange blind hole in, left section of spring shaft with Bulge loop can slide in blind hole, and right section of spring shaft stretches out outside blind hole, end contacts with plunger rod T-shaped head;
Described mould changing device includes cylinder block, die change cylinder, cushion block;Cylinder block is connected to the top of pressure head, die change gas Cylinder is mounted vertically on cylinder block, and the piston rod of die change cylinder is connected with cushion block, and cushion block is driven by die change cylinder can be at pressure head Die change hole in make Z-direction slide;There is on cushion block the Baltimore groove that lower end is uncovered, right section of spring shaft can be held and pass.
According to needing the different pitch of holes requirements of punching on workpiece, each drift can be realized by mould changing device and individually rush Hole, can realize again the punching simultaneously of multiple drift.Each die change cylinder is controlled respectively by controlling device, needs a certain drift to participate in punching Kong Shi, the piston rod controlling the device corresponding die change cylinder of control stretches out, and makes cushion block insert die change corresponding on pressure head Kong Zhong, then controls device and controls fluid power cylinder action, and the rod end of fluid power cylinder promotes pressure head to make Y-direction along the second guide rail Mobile, impart power to plunger rod by cushion block, and then pass to the drift realization punching to workpiece;If need not a certain When drift participates in punching, then the piston rod controlling the device corresponding die change cylinder of control does not stretches out, and makes cushion block be not inserted into pressure In die change hole corresponding on head, control device and control fluid power cylinder action, the rod end of fluid power cylinder promote pressure head along Second guide rail moves as Y-direction, when promoting other drifts to be punched out workpiece, due in the die change hole corresponding with this plunger rod Being not inserted into cushion block, the drift on this plunger rod runs into the spring-compressed of resilient mounting after workpiece, makes plunger rod bounce back, plunger rod T-shaped head enter in die change hole so that this drift is not involved in punching processing, controls fluid power cylinder action, liquid when controlling device When pressure head is retracted in situ by the rod end of pressure power cylinder, drift leaves workpiece, and the spring of resilient mounting stretches out, and makes plunger rod reply former Position.
In this utility model, described base is provided with connection bearing, connects bearing and is provided with positioner and floating Support arrangement A, mobile support is provided with the floating support device B corresponding with floating support device A;
Positioner includes that positioner A and positioner B, positioner A are arranged at the front portion of floating support device A, The right side that positioner B is arranged at positioner A is corresponding with positioner A.
The purpose arranging positioner is, when punching main frame on line uses, and the positioner work to entering punching main frame Part makees Y-direction location, it is ensured that workpiece is consistent with the Y-direction benchmark after entrance punching main frame before entering punching main frame.Floating is set The purpose of support arrangement is, when punching main frame on line uses, floating support device plays two effects: one is to support to enter punching master The workpiece of machine;Two is to ensure that workpiece will not deform and misplace when upside material pressing device workpiece pressing.
In technique scheme, described positioner A includes positioning seat A, locating shaft A, registration roller A;Peace in registration roller A Equipped with bearing A, the upper end that is rotationally connected with locating shaft, the lower end of locating shaft is connected on positioning seat A, and positioning seat A is fixed on even Connect on bearing;
Described positioner B includes the 3rd guide rail, positioning cylinder seat, locating shaft B, registration roller B, positioning cylinder, connection Plate, contiguous block;3rd guide rail, positioning cylinder seat are fixed on connection bearing, and positioning cylinder is connected on positioning cylinder seat, connect The bottom of plate connects has the slide block corresponding with the 3rd guide rail, locating shaft B to be fixed on the left end on connecting plate top, and contiguous block is connected Bearing B is installed in the right-hand member on connecting plate top, registration roller B, is rotationally connected with the upper end of locating shaft B, the work of positioning cylinder Stopper rod is connected with contiguous block, drives connecting plate to slide along Y-direction.
In technique scheme, described floating support device A includes supporting seat A, support shaft A, supporting roller A, support bullet Spring A;Support seat A is connected with being connected bearing, supports spring A and is arranged between support seat A and support shaft A, and support shaft A upper end rotates Connecting and have support roller A, can slide along Z-direction in supporting seat A in the bottom of support shaft A;
Described floating support device B includes supporting seat B, support shaft B, supporting roller B, support spring B;Support seat B and company Connecing support to be connected, support spring B and be arranged between support seat B and support shaft B, support shaft B upper end is rotatably connected to support roller B, Can slide along Z-direction in supporting seat B in the bottom of support shaft B;Connect support to be arranged on mobile support.
In technique scheme, described servo power device includes servomotor, adjustment plate, small synchronous pulley, synchronizes greatly Belt wheel, Timing Belt, motor cabinet, adjustment screw, support seat;
Small synchronous pulley is connected with servo motor output shaft, and big synchronous pulley is connected with leading screw, and servomotor drives Small synchronous pulley drives big synchronous pulley to drive screw turns by Timing Belt;
Servomotor is installed in adjustment plate, and adjustment plate is slidably mounted on motor cabinet, and motor cabinet is installed by supporting seat On base;Adjusting screw to be connected in adjustment plate, adjustment plate can adjust its Z-direction height by adjusting screw and then adjust same The degree of tightness of step band.
In technique scheme, described servo power device can also use following structure: includes servomotor, adjustment Plate, shaft coupling, motor cabinet, adjustment screw, support seat;
Servo motor output shaft is connected with leading screw by shaft coupling;
Servomotor is installed in adjustment plate, and adjustment plate is slidably mounted on motor cabinet, and motor cabinet is installed by supporting seat On base;Adjusting screw to be connected in adjustment plate, adjustment plate can adjust its Z-direction height by adjusting screw and then adjust same The degree of tightness of step band.
Work process of the present utility model is as follows:
During work, according to specification of workpieces, first electrical control gear controls servo power device action, makes mobile support edge First guide rail moves horizontally correct position, makes the distance between die and the die in fixed base on mobile support slightly Less than the distance between workpiece to be machined medial surface;
Workpiece to be processed is placed on the upside of mould bases supporting surface and (punching of the present utility model production main frame is applied to production line In, pay-off is by the upside of workpiece automatic transport to mould bases supporting surface), electrical control gear controls the location gas of positioner B Cylinder action, the piston rod of positioning cylinder promotes registration roller B to be pressed against by workpiece on the registration roller A of positioner A, carries out Y-direction fixed Position;Behind location, material pressing device workpiece pressing on the upside of electrical control gear control;After workpiece is compacted, electrical control gear is again Secondary control servo power device action makes the mould bases tension workpiece medial surface on mobile support.The side hydraulic pressure of side material pressing device Power cylinder driving side holding pad, lateral pressing block carry out lateral surface compressing to workpiece, after workpiece is compacted, electrical control gear according to On workpiece, the requirement of pitch-row controls the die change cylinder action of mould changing device, and the piston rod of die change cylinder drives cushion block to make Z-direction and slides Carry out the conversion of mould position.After die change completes, electrical control gear controls fluid power cylinder drive ram and drives plunger rod and drift Workpiece is punched out.Each fluid power cylinder is controlled respectively by controlling device, make each pressure head both can isolated operation, again can simultaneously Complete punching operation, substantially increase the automaticity of punching, decrease the number of working processes, reduce processing cost, improve Production efficiency.Punching main frame can be not required to frequently change punching according to the different drifts installing different size of punching hole diameter on workpiece Head, processing seriality is good;Punching main frame can install the drift of 12 kinds of different sizes simultaneously, and the range of work is wide;When changing drift Only need to back out drift nut, easy to operate.Punching of the present utility model production main frame is applied in production line, in servo The lower processing that can realize any pitch of holes of the auxiliary of pay-off, if the pitch of holes required on workpiece and punching of the present utility model It is different that hole produces the pitch of holes arranged on main frame, after using the A drift on punching production main frame to punch a hole, and servo feeding Device carries out the accurate feeding of a pitch of holes according to the pitch of holes required on workpiece, the most still uses A drift punching next Hole, and utilize mould changing device to make other drifts all be not involved in punching.
Useful achievement of the present utility model is:
This utility model uses such scheme, easy to operate, and the range of work is wide, and automaticity is high, improves processing essence Degree, decreases the number of working processes, reduces processing cost, improve production efficiency, it is ensured that the seriality of processing.
Accompanying drawing explanation
Fig. 1 is the schematic front view that a kind of punching of this utility model produces main frame.
Fig. 2 is the schematic top plan view that a kind of punching of this utility model produces main frame.
Fig. 3 is that the schematic top plan view of a kind of punching of this utility model production main frame (removes mould changing device 104, upper lateral pressing After device 106 and workpiece).
Fig. 4 is the schematic front view (the B portion enlarged diagram in Fig. 1) of resilient mounting in this utility model.
Fig. 5 is the schematic top plan view of resilient mounting in this utility model.
Fig. 6 is the schematic front view of mould changing device in this utility model.
Fig. 7 is that in this utility model, the right side of mould changing device regards schematic diagram.
Fig. 8 is the schematic front view (the A portion enlarged diagram in Fig. 1) of side material pressing device in this utility model.
Fig. 9 is the schematic top plan view of side material pressing device in this utility model.
Figure 10 is the structural representation of upside material pressing device in this utility model.
Figure 11 is the structural representation of servo power device in this utility model.
Figure 12 is the structural representation of floating support device B in this utility model.
Figure 13 is the structural representation of positioner A in this utility model.
Figure 14 is the structural representation of positioner B in this utility model.
Figure 15 is the structural representation of floating support device A in this utility model.
In figure: 100-base, 101-moves support, 102-fluid power cylinder,
103-resilient mounting, 10301-spring, 10302-spring shaft,
104-mould changing device, 10401-cylinder block, 10402-die change cylinder, 10403-cushion block,
105-side material pressing device, 10501-side fluid power cylinder, 10502-side pressure flitch, 10503-lateral pressing block,
Material pressing device on the upside of 106-, 10601-air cylinder support, 10602-upper lateral pressing cylinder, 10603-guide pillar, 10604- Guide pin bushing, 10605-oilless bearing, the upper holding pad of 10606-, the upper binder block of 10607-,
107-mould bases, 108-plunger rod,
109-pressure head, 10901-die change hole,
110-fixed base, 111-drift nut, 112-drift, 113-die,
114-servo power device, 11401-servomotor, 11402-adjustment plate, 11403-adjusts screw, 11404-electricity Support, 11405-small synchronous pulley, the big synchronous pulley of 11407-, 11406-Timing Belt, 11408-supports seat,
115-floating support device B, 11501-support seat B, 11502-support shaft B, and 11503-supports roller B, 11504-supports spring B,
116-positioner A, 11601-positioning seat A, 11602-registration roller A, 11603-locating shaft A, 11604-axle Hold,
117-positioner B, 11701-positioning cylinder, 11702-positioning cylinder seat, 11703-contiguous block, 11704-is fixed Position roller B, 11705-locating shaft B, 11706-bearing, 11707-connecting plate,
118-floating support device A, 11801-support seat A, 11802-support shaft A, and 11803-supports roller A, 11804- Support spring A,
119-connects bearing, and 120-connects support, 121-leading screw, 122-the first guide rail, 123-material-falling hopper, 124-waste material Car, 125-the second guide rail.
Detailed description of the invention
For the technical characterstic of this programme can be clearly described, below by detailed description of the invention, and combine accompanying drawing, to this practicality Novel it is described further.
Embodiment one:
As shown in Figure 1 to Figure 3, a kind of punching produces main frame, including base and hole punched device, and hydraulic power unit and electrically Control device.Base is provided with fixed base 110, mobile support 101 and mobile frame driving device.Hole punched device includes left punching Aperture apparatus and right hole punched device, left hole punched device is arranged on mobile support 101, and right hole punched device is arranged at fixed base 110 On.
Base 100 is provided with two first guide rails 122, and the mobile mobile support 101 of frame driving device driving can be along first Guide rail 122 moves as Y-direction;
Mobile frame driving device includes:
Servo power device 114, is fixed on base 100,
Leading screw 121, one end is connected with servo power device 114, and the present embodiment uses ball-screw,
Screw, is connected to mobile support 101 bottom, is meshed with ball-screw 121;
Left hole punched device is identical with right hole punched device structure, be symmetrically arranged.
Left hole punched device includes:
Mould bases 107, including left riser, right riser and base plate, cross section takes the shape of the letter U, and is fixed on mobile support 101 by base plate Right-hand member, for strengthening mould bases rigidity, left and right riser and base plate can be integral type structure;
6 dies 113, are arranged on the right riser of mould bases 107, the work aperture of die 113 can identical can not also With;
Drift 112, corresponding with die 113, left end is connected on plunger rod 108,
Plunger rod 108, can slide in the pilot hole of the left riser of mould bases 107, and right-hand member passes through drift nut 111 and drift 112 are connected, and left end is provided with T-shaped head,
2 fluid power cylinders 102, are fixed on the left end of mobile support 101,
4 second guide rails 125, are fixed on mobile support 101,
2 pressure heads 109, between mould bases 107 and fluid power cylinder 102, can move along the second guide rail 125 as Y-direction, left Side is connected with the rod end of fluid power cylinder 102, and right-hand member is provided with the vertical T-slot corresponding with plunger rod 108, plunger rod 108 T-shaped head be positioned at this T-slot, be provided with die change hole 10901, each pressure between T-shaped head and the bottom surface of T-slot of plunger rod 108 On 109,3 T-slots are set,
Mould changing device 104, corresponding with plunger rod 108, it is installed on pressure head 109,
Resilient mounting 103, is arranged between pressure head 109 and plunger rod 108 so that the T-shaped head of plunger rod 108 all the time away from The bottom surface of T-slot,
Upside material pressing device 106, is installed on the top of the left riser of mould bases 107,
Side material pressing device 105, is installed on the right side of the left riser of mould bases 107.
As shown in Figure 10, upside material pressing device 106 includes air cylinder support 10601, upper lateral pressing cylinder 10602, guide pillar 10603, guide pin bushing 10604, oilless bearing 10605, upper holding pad 10606, upper binder block 10607;On the left of air cylinder support 10601 Bottom is bolted to the top of the left riser of mould bases 107, and upper lateral pressing cylinder 10602 is mounted vertically in air cylinder support Upper end on the right side of in the of 10601, the piston rod of upper lateral pressing cylinder 10602 is connected with upper holding pad 10607 bolt, guide pin bushing 10604 on air cylinder support 10601, are provided with oilless bearing 10605 with bolt limit admittedly inside guide pin bushing 10604, guide pillar 10603 can Sliding along oilless bearing 10605, the lower end of guide pillar 10603 is connected with upper holding pad 10606, and upper binder block 10607 is used Bolt is connected on the bottom surface of holding pad 10606, and upper binder block 10607 uses polyurethane materials, can prevent from scratching workpiece Surface.The effect of upside material pressing device 106 is from workpiece pressing above, positions workpiece, particularly has slightly at workpiece Deform and in the case of dislocation, warpage, it is ensured that machining accuracy.Work is constituted between upper binder block 10607 and the upper plane of mould bases 107 The transfer passage of part.
As shown in Figure 8, Figure 9, side material pressing device 105 includes side fluid power cylinder 10501, side pressure flitch 10502, side Binder block 10503;Side fluid power cylinder 10501 bolt is fixed on the medial surface of the right riser of mould bases 107, side pressure flitch 10502 are connected with the piston rod bolt of side fluid power cylinder 10501, and lateral pressing block 10503 is used with side pressure flitch 10502 Bolt is connected;Lateral pressing block 10503 be equipped with the through hole corresponding with drift 112, drift 112 on side pressure flitch 10502 Can pass from through hole.Lateral pressing block 10503 uses polyurethane materials, can prevent from scratching surface of the work.Side material pressing device 105 Effect one be binder, i.e. from lateral surface compressing workpiece, prevent in punch process workpiece deformation and dislocation;Another effect is to unload Material, is automatically separated workpiece good for punching press with drift 112, prevents drift 112 from leaving edge and the surrounding generation of die 113 hole when Workpiece is also taken up by the deformation such as warpage.
As shown in Figure 4, Figure 5, resilient mounting includes spring 10301 and spring shaft 10302;Left section of spring shaft 10302 with Being provided with bulge loop between right section, spring 10301 is sleeved on left section of spring shaft 10302, and spring shaft 10302 is installed on pressure head 109 In the blind hole arranged, spring shaft 10302 can slide in blind hole, right section of spring shaft 10302 stretch out blind hole outward, end and drift The T-shaped head contact of bar 108;
As shown in Figure 6, Figure 7, mould changing device includes cylinder block 10401, die change cylinder 10402, cushion block 10403;Cylinder block 10401 tops being connected to pressure head 109, die change cylinder 10402 is mounted vertically on cylinder block 10401, die change cylinder 10402 Piston rod is connected with cushion block 10403, and cushion block 10403 is driven can be made Z in the die change hole of pressure head 109 by die change cylinder 10402 To slip;There is on cushion block 10403 Baltimore groove that lower end is uncovered, right section of spring shaft 10302 can be held and pass.
According to needing the different pitch of holes requirements of punching on workpiece, each drift 112 can be realized by mould changing device 104 Individually punching, can realize again the punching simultaneously of multiple drift 112.Each die change cylinder 10402 is controlled respectively by controlling device, needs When a certain drift 112 participates in punching, the piston rod controlling the device corresponding die change cylinder 10402 of control stretches out, and makes cushion block 10403 insert in die change hole 10901 corresponding on pressure head 109, then control device and control fluid power cylinder 102 action, liquid The rod end of pressure power cylinder 102 promotes pressure head 109 to move along the second guide rail 125 as Y-direction, is transmitted by power by cushion block 10403 To plunger rod 108, and then pass to drift 112 and realize the punching to workpiece;If need not a certain drift 112 to participate in punching Time, then the piston rod controlling the device corresponding die change cylinder 10402 of control does not stretches out, and makes cushion block 10403 be not inserted into pressure head In die change hole 10901 corresponding on 109, control device and control fluid power cylinder 102 action, the rod end of fluid power cylinder 102 Promote pressure head 109 move along the second guide rail 125 as Y-direction, when promoting other drifts 112 that workpiece is punched out, due to this Being not inserted into cushion block 10403 in the die change hole 10901 that plunger rod 108 is corresponding, the drift 112 on this plunger rod 108 runs into work After part, the spring 10301 of resilient mounting 103 compresses, and makes plunger rod 108 bounce back, and the T-shaped head of plunger rod 108 enters die change hole In 10901 so that this drift 112 is not involved in punching processing, control fluid power cylinder 102 action, hydraulic power when controlling device When pressure head 109 is retracted in situ by the rod end of cylinder 102, drift 112 leaves workpiece, and the spring 10301 of resilient mounting 103 stretches out, and makes Plunger rod 108 homing.
As shown in Figure 1 to Figure 3, base is provided with connection bearing 119, connects bearing 119 and is provided with positioner and floating Support means A118, mobile support 101 is provided with the floating support device B115 corresponding with floating support device A118;
Positioner includes that positioner A116 and positioner B117, positioner A116 are arranged at floating support device The front portion of A118, the right side that positioner B117 is arranged at positioner A116 is corresponding with positioner A116.
The purpose arranging positioner is, when punching main frame on line uses, and the positioner work to entering punching main frame Part makees Y-direction location, it is ensured that workpiece is consistent with the Y-direction benchmark after entrance punching main frame before entering punching main frame.Floating is set The purpose of support arrangement is, when punching main frame on line uses, floating support device plays two effects: one is to support to enter punching master The workpiece of machine;Two is to ensure that workpiece will not deform and misplace when upside material pressing device workpiece pressing.
As shown in figure 13, positioner A116 includes positioning seat A11601, locating shaft A11603, registration roller A11602;Fixed Bearing A11604 is installed in the roller A11602 of position, is rotationally connected with the upper end of locating shaft A11603, the lower end of locating shaft A11603 Being connected on positioning seat A11601, positioning seat A11601 bolt is fixed on connection bearing 119;
As shown in figure 14, positioner B117 includes the 3rd guide rail 11708, positioning cylinder seat 11702, locating shaft B11705, registration roller B11704, positioning cylinder 11701, connecting plate 11707, contiguous block 11703;3rd guide rail 11708, location Cylinder block 11702 bolt is fixed on connection bearing 119, and positioning cylinder 11701 is fixed on positioning cylinder seat 11702, even The bottom of fishplate bar 11707 connects has the slide block corresponding with the 3rd guide rail 11708, locating shaft B11705 to be fixed on connecting plate The left end on 11707 tops, contiguous block 11703 is fixed on the right-hand member on connecting plate 11707 top, is provided with axle in registration roller B11704 Holding B11706, be rotationally connected with the upper end of locating shaft B11705, the piston rod of positioning cylinder 11701 is connected with contiguous block 11703, Connecting plate 11707 is driven to slide along Y-direction.
As shown in figure 15, floating support device A118 includes supporting seat A11801, support shaft A11802, supporting roller A11803, support spring A11804;Support seat A11801 is connected with being connected bearing 119 bolt, supports spring A11804 and arranges In supporting between seat A11801 and support shaft A11802, support shaft A11802 upper end is rotatably connected to support roller A11803, supports Can slide along Z-direction in supporting seat A11801 in the bottom of axle A11802;
As shown in figure 12, floating support device B115 includes supporting seat B11501, support shaft B11502, supporting roller B11503, support spring B 11504;Support seat B11501 is connected with being connected support 120 bolt, supports spring B 11504 and arranges In supporting between seat B11501 and support shaft B11502, support shaft B11502 upper end is rotatably connected to support roller B11503, supports Can slide along Z-direction in supporting seat B11501 in the bottom of axle B11502;Connect support 120 to be fixed on mobile support 101.
As shown in figure 11, servo power device 114 includes servomotor 11401, adjustment plate 11402, small synchronous pulley 11405, big synchronous pulley 11407, Timing Belt 11406, motor cabinet 11404, adjustment screw 11403, support seat 11408;
Small synchronous pulley 11405 is connected with servomotor 11401 output shaft bolt, big synchronous pulley 11407 and rolling Ballscrew 121 is connected, and servomotor 11401 drives small synchronous pulley 11405 to drive big synchronous pulley by Timing Belt 11406 11407 drive ball-screw 121 to rotate;
Servomotor 11401 is fixed in adjustment plate 11402, and adjustment plate 11402 is provided with vertical elongated hole, and bolt passes This elongated hole is connected with motor cabinet 11404, and adjustment plate 11402 can slide up and down, and motor cabinet 11404 is installed by supporting seat 11408 On base 100;Adjusting screw 11403 to be connected in the vertical screw of adjustment plate 11402 upper end, the lower end of vertical screw is with upper The elongated hole stated is connected, and the lower end adjusting screw 11403 acts against on described bolt, and adjustment plate 11402 can be by adjusting spiral shell Nail 11403 its Z-direction height of adjustment and then the degree of tightness of adjustment Timing Belt 11406.
The work process of the present embodiment is as follows:
During work, according to specification of workpieces, first electrical control gear controls servo power device 114 action, makes moving machine Seat 101 moves horizontally correct position along the first guide rail 122;Workpiece to be processed is placed on the upside of mould bases 107 supporting surface, electrically Controlling device and control the positioning cylinder action of positioner B117, the piston rod of positioning cylinder 11701 promotes registration roller B11704 Workpiece is pressed against on the registration roller A11602 of positioner A116, carries out Y-direction location;Behind location, electrical control gear controls Upside material pressing device 106 workpiece pressing;After workpiece is compacted, electrical control gear again controls servo power device 114 and moves The mould bases 107 on mobile support 101 is made to strain workpiece medial surface.The side fluid power cylinder 10501 of side material pressing device 105 Driving side holding pad 10502 drives lateral pressing block 10503 that workpiece is carried out lateral surface compressing, after workpiece is compacted, electrical control Device controls die change cylinder 10402 action of mould changing device 104, the work of die change cylinder 10402 according to the requirement of pitch-row on workpiece Stopper rod drive cushion block 10403 is made Z-direction slip and is carried out the conversion of mould position.After die change completes, electrical control gear controls hydraulic power Cylinder 102 drive ram 109 drives plunger rod 108 and drift 112 to be punched out workpiece.Each fluid power cylinder is divided by controlling device Do not control, make each pressure head both can isolated operation, punching operation can be completed again simultaneously, substantially increase automatization's journey of punching Degree, decreases the number of working processes, reduces processing cost, improve production efficiency.Punching main frame can be according to punching hole diameter on workpiece The different drifts 112 installing different sizes, without frequently changing drift 112, processing seriality is good;Punching main frame can be simultaneously Installing the drift 112 of 12 kinds of different sizes, the range of work is wide;Only need to back out drift nut 111 when changing drift 112, Easy to operate.Punching of the present utility model production main frame is applied in production line, can be real under the auxiliary of servo feeding device The processing of incumbent meaning pitch of holes, if the pitch of holes required on workpiece produces, with punching of the present utility model, the hole arranged on main frame Spacing is different, and after using the A drift on punching production main frame to punch a hole, servo feeding device is according to requirement on workpiece Pitch of holes carries out the accurate feeding of a pitch of holes, the most still uses A drift punching next one hole, and utilizes mould changing device to make it He is all not involved in punching by drift.
Embodiment two:
A kind of punching produces main frame, and on the upside of it, material pressing device 106 includes air cylinder support 10601, upper lateral pressing cylinder 10602, guide pillar 10603, guide pin bushing 10604, linear bearing, upper holding pad 10606, upper binder block 10607;Air cylinder support 10601 The bottom in left side is bolted to the top of the left riser of mould bases 107, and upper lateral pressing cylinder 10602 is mounted vertically in cylinder and props up Upper end on the right side of frame 10601, the piston rod of upper lateral pressing cylinder 10602 is connected with upper holding pad 10607 bolt, guide pin bushing 10604 on air cylinder support 10601, are provided with linear bearing with bolt limit admittedly inside guide pin bushing 10604, guide pillar 10603 can be along directly Bobbin holds slip, and the lower end of guide pillar 10603 is connected with upper holding pad 10606, and upper binder block 10607 is bolted to On the bottom surface of upper holding pad 10606;
Its servo power device 114 includes servomotor 11401, adjustment plate 11402, shaft coupling, motor cabinet 11404, adjusts Whole screw 11403, support seat 11408;The output shaft of servomotor 11401 is connected with ball-screw 121 by shaft coupling, watches Taking motor 11401 drives ball-screw 121 to rotate;Servomotor 11401 is fixed in adjustment plate 11402, in adjustment plate 11402 Being provided with vertical elongated hole, bolt is connected through this elongated hole with motor cabinet 11404, and adjustment plate 11402 can slide up and down, motor cabinet 11404 are arranged on base 100 by supporting seat 11408;Adjust screw 11403 and be connected to the vertical of adjustment plate 11402 upper end In screw, the lower end of vertical screw is connected with above-mentioned elongated hole, and the lower end adjusting screw 11403 acts against described bolt On, adjustment plate 11402 can adjust its Z-direction height by adjusting screw 11403 and then adjust the degree of tightness of Timing Belt 11406;Remaining Structure is identical with embodiment one.
Embodiment three:
A kind of punching produces main frame, and on the upside of it, material pressing device 106 includes air cylinder support 10601, multiaxis cylinder, upper holding pad 10606, upper binder block 10607;Bottom on the left of air cylinder support 10601 is bolted to the top of the left riser of mould bases 107, Multiaxis cylinder is mounted vertically in the upper end on the right side of air cylinder support 10601, and the piston rod of multiaxis cylinder is used with upper holding pad 10607 Bolt is connected, and upper binder block 10607 is bolted on the bottom surface of holding pad 10606;Remaining structure and embodiment one Identical.

Claims (13)

1. punching produces a main frame, and including base and hole punched device, hydraulic power unit and electrical control gear, its feature exists In: described base is provided with fixed base, mobile support and mobile frame driving device, and described hole punched device includes left punching Aperture apparatus and right hole punched device, left hole punched device is arranged on mobile support, and right hole punched device is arranged in fixed base.
A kind of punching the most according to claim 1 produces main frame, it is characterised in that: described base is provided with first and leads Rail, mobile frame driving device drives mobile support can move along the first guide rail as Y-direction;
Mobile frame driving device includes:
Servo power device, is fixed on base,
Leading screw, one end is connected with servo power device,
Screw, is connected to mobile support bottom, is meshed with leading screw;
Described left hole punched device is identical with right hole punched device structure, be symmetrically arranged.
A kind of punching the most according to claim 2 produces main frame, it is characterised in that: described left hole punched device includes:
Mould bases, including left riser, right riser and base plate, cross section takes the shape of the letter U, and is fixed on the right-hand member of mobile support by base plate,
At least one die, is arranged on the right riser of mould bases,
Drift, corresponding with die, left end is connected on plunger rod,
Plunger rod, can slide in the pilot hole of the left riser of mould bases, and right-hand member is connected with drift by drift nut, and left end is provided with T Shape head,
Fluid power cylinder, is fixed on the left end of mobile support,
Second guide rail, is fixed on mobile support,
Pressure head, between mould bases and fluid power cylinder, can move along the second guide rail as Y-direction, left surface and fluid power cylinder Rod end is connected, and right-hand member is provided with the vertical T-slot corresponding with plunger rod, and the T-shaped head of plunger rod is positioned at this T-slot, plunger rod T-shaped head and the bottom surface of T-slot between be provided with die change hole,
Mould changing device, corresponding with plunger rod, it is installed on pressure head,
Resilient mounting, is arranged between pressure head and plunger rod so that the T-shaped head of plunger rod all the time away from the bottom surface of T-slot,
Upside material pressing device, is installed on the top of the left riser of mould bases,
Side material pressing device, is installed on the right side of the left riser of mould bases.
A kind of punching the most according to claim 3 produces main frame, it is characterised in that: described upside material pressing device includes gas Jar support, upper lateral pressing cylinder, guide pillar, guide pin bushing, oilless bearing, upper holding pad, upper binder block;Bottom on the left of air cylinder support Being connected to the top of the left riser of mould bases, upper lateral pressing cylinder is mounted vertically in the bottom on the right side of air cylinder support, upper lateral pressing gas The piston rod of cylinder is connected with upper holding pad, and guide pin bushing is arranged on air cylinder support, is provided with oilless bearing inside guide pin bushing, and guide pillar can Sliding along oilless bearing, the lower end of guide pillar is connected with upper holding pad, and upper binder block is connected on the bottom surface of holding pad.
A kind of punching the most according to claim 3 produces main frame, it is characterised in that: described upside material pressing device includes gas Jar support, upper lateral pressing cylinder, guide pillar, guide pin bushing, linear bearing, upper holding pad, upper binder block;Bottom on the left of air cylinder support Being connected to the top of the left riser of mould bases, upper lateral pressing cylinder is mounted vertically in the bottom on the right side of air cylinder support, upper lateral pressing gas The piston rod of cylinder is connected with upper holding pad, and guide pin bushing is arranged on air cylinder support, is provided with linear bearing inside guide pin bushing, and guide pillar can Linearly bearing slides, and the lower end of guide pillar is connected with upper holding pad, and upper binder block is connected on the bottom surface of holding pad.
A kind of punching the most according to claim 3 produces main frame, it is characterised in that: described upside material pressing device includes gas Jar support, multiaxis cylinder, upper holding pad, upper binder block;Bottom on the left of air cylinder support is connected to the top of the left riser of mould bases, Multiaxis cylinder is mounted vertically in the bottom on the right side of air cylinder support, and the piston rod of multiaxis cylinder is connected with upper holding pad, upper pressure Material block is connected on the bottom surface of holding pad.
A kind of punching the most according to claim 3 produces main frame, it is characterised in that: described side material pressing device includes side Face fluid power cylinder, side pressure flitch, lateral pressing block;Side fluid power cylinder is arranged on the medial surface of the right riser of mould bases, side pressure Flitch is connected with the piston rod of side fluid power cylinder, and lateral pressing block is connected with side pressure flitch;Lateral pressing block and lateral pressing Being equipped with the through hole corresponding with drift on plate, drift can pass from through hole.
A kind of punching the most according to claim 3 produces main frame, it is characterised in that: described resilient mounting include spring and Spring shaft;Being provided with bulge loop between left section and right section of spring shaft, spring housing is contained in left section of spring shaft, and spring shaft is installed on pressure head In the blind hole of upper setting, left section of spring shaft and bulge loop can slide in blind hole, right section of spring shaft stretches out that blind hole is outer, end and Plunger rod T-shaped head contacts;
Described mould changing device includes cylinder block, die change cylinder, cushion block;Cylinder block is connected to the top of pressure head, and die change cylinder erects To being arranged on cylinder block, the piston rod of die change cylinder is connected with cushion block, and cushion block is driven by die change cylinder can changing at pressure head Make Z-direction in nib to slide;There is on cushion block the Baltimore groove that lower end is uncovered, right section of spring shaft can be held and pass.
A kind of punching the most according to claim 1 and 2 produces main frame, it is characterised in that: described base is provided with connection Bearing, connects bearing and is provided with positioner and floating support device A, and mobile support is provided with relative with floating support device A The floating support device B answered;
Positioner includes that positioner A and positioner B, positioner A are arranged at the front portion of floating support device A, location The right side that device B is arranged at positioner A is corresponding with positioner A.
A kind of punching the most according to claim 9 produces main frame, it is characterised in that: described positioner A includes location Seat A, locating shaft A, registration roller A;Bearing A is installed in registration roller A, is rotationally connected with the upper end of locating shaft, the lower end of locating shaft Being connected on positioning seat A, positioning seat A is fixed on connection bearing;
Described positioner B includes the 3rd guide rail, positioning cylinder seat, locating shaft B, registration roller B, positioning cylinder, connecting plate, company Connect block;3rd guide rail, positioning cylinder seat are fixed on connection bearing, and positioning cylinder is connected on positioning cylinder seat, connecting plate Bottom connects has the slide block corresponding with the 3rd guide rail, locating shaft B to be fixed on the left end on connecting plate top, and contiguous block is fixed on even The right-hand member on fishplate bar top, is provided with bearing B, is rotationally connected with the upper end of locating shaft B in registration roller B, the piston rod of positioning cylinder It is connected with contiguous block, drives connecting plate to slide along Y-direction.
11. a kind of punchings according to claim 9 produce main frame, it is characterised in that: described floating support device A includes Support seat A, support shaft A, support roller A, support spring A;Support seat A is connected with being connected bearing, supports spring A and is arranged at support seat Between A and support shaft A, support shaft A upper end is rotatably connected to support roller A, and the bottom of support shaft A can be sliding along Z-direction in supporting seat A Dynamic;
Described floating support device B includes supporting seat B, support shaft B, supporting roller B, support spring B;Support seat B and prop up with being connected Frame is connected, and supports spring B and is arranged between support seat B and support shaft B, and support shaft B upper end is rotatably connected to support roller B, supports Can slide along Z-direction in supporting seat B in the bottom of axle B;Connect support to be arranged on mobile support.
12. a kind of punchings according to claim 2 produce main frame, it is characterised in that: described servo power device includes watching Take motor, adjustment plate, small synchronous pulley, big synchronous pulley, Timing Belt, motor cabinet, adjustment screw, support seat;
Small synchronous pulley is connected with servo motor output shaft, and big synchronous pulley is connected with leading screw, and servomotor drives little same Step belt wheel drives big synchronous pulley to drive screw turns by Timing Belt;
Servomotor is installed in adjustment plate, and adjustment plate is slidably mounted on motor cabinet, and motor cabinet is arranged on the end by supporting seat On seat;Adjusting screw to be connected in adjustment plate, adjustment plate can adjust its Z-direction height by adjusting screw and then adjust Timing Belt Degree of tightness.
13. a kind of punchings according to claim 2 produce main frame, it is characterised in that: described servo power device includes watching Take motor, adjustment plate, shaft coupling, motor cabinet, adjustment screw, support seat;
Servo motor output shaft is connected with leading screw by shaft coupling;
Servomotor is installed in adjustment plate, and adjustment plate is slidably mounted on motor cabinet, and motor cabinet is arranged on the end by supporting seat On seat;Adjusting screw to be connected in adjustment plate, adjustment plate can adjust its Z-direction height by adjusting screw and then adjust Timing Belt Degree of tightness.
CN201620694355.XU 2016-07-05 2016-07-05 A kind of punching produces main frame Withdrawn - After Issue CN205732488U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620694355.XU CN205732488U (en) 2016-07-05 2016-07-05 A kind of punching produces main frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620694355.XU CN205732488U (en) 2016-07-05 2016-07-05 A kind of punching produces main frame

Publications (1)

Publication Number Publication Date
CN205732488U true CN205732488U (en) 2016-11-30

Family

ID=57380552

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201620694355.XU Withdrawn - After Issue CN205732488U (en) 2016-07-05 2016-07-05 A kind of punching produces main frame

Country Status (1)

Country Link
CN (1) CN205732488U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105964763A (en) * 2016-07-05 2016-09-28 济南天辰铝机股份有限公司 Punching production main machine
CN107116132A (en) * 2017-06-23 2017-09-01 芜湖德丰汽车零部件有限公司 A kind of horizontal hole punched device
CN107225615A (en) * 2017-06-21 2017-10-03 滁州佳诚模具制造有限公司 For refrigerator cold closet plastic punching device
CN108746383A (en) * 2018-05-31 2018-11-06 安徽扬子职业技术学院 A kind of multi-faceted device for positioning and securing for the punching press simultaneously of the more parts of automobile
CN114211565A (en) * 2021-12-10 2022-03-22 哈尔滨学院 Plastic package card processing system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105964763A (en) * 2016-07-05 2016-09-28 济南天辰铝机股份有限公司 Punching production main machine
CN107225615A (en) * 2017-06-21 2017-10-03 滁州佳诚模具制造有限公司 For refrigerator cold closet plastic punching device
CN107116132A (en) * 2017-06-23 2017-09-01 芜湖德丰汽车零部件有限公司 A kind of horizontal hole punched device
CN107116132B (en) * 2017-06-23 2019-04-26 芜湖德丰汽车零部件有限公司 A kind of horizontal hole punched device
CN108746383A (en) * 2018-05-31 2018-11-06 安徽扬子职业技术学院 A kind of multi-faceted device for positioning and securing for the punching press simultaneously of the more parts of automobile
CN114211565A (en) * 2021-12-10 2022-03-22 哈尔滨学院 Plastic package card processing system
CN114211565B (en) * 2021-12-10 2022-09-09 哈尔滨学院 Plastic package card processing system

Similar Documents

Publication Publication Date Title
CN205732488U (en) A kind of punching produces main frame
US5526668A (en) Index-feed machining system
CN104924091B (en) The flexible automatic machining cell of photovoltaic module aluminium frame
CN105964763B (en) A kind of punching production host
CN103658388B (en) A kind of progressive die and method for producing automotive seat slideway retainer
CN104985099A (en) Triaxial automatic riveting machine
CN104550423B (en) A kind of ladder-type bridge frame side hole automatic production line and processing method
CN1321785C (en) Apparatus for blanking and processing profile notches of rubber sealing strip
CN106493218A (en) A kind of mould and small size stamping parts processing method for small size stamping parts
CN202803997U (en) Automation feeding and blanking mechanical arm
CN209288343U (en) A kind of central sill multi-hole drill
CN215090090U (en) Tower machine standard festival processing equipment that punches a hole
CN203400978U (en) U plate automobile carling punching intelligent die
US5678446A (en) Index-feed machining system
CN210547400U (en) Automatic feeding double-station die for bottom plate of plastering plate support
CN209753749U (en) High-intelligent automatic discharging transverse stamping device
CN207308690U (en) One kind indexing perforating press
JPH0825160A (en) Progressive feed machining device
CN205253850U (en) Numerical control hydraulic piercing press with follow -up press device
CN205851706U (en) Miniature pneumatic transfer robot
CN209736414U (en) Punch press with loading attachment
CN205096656U (en) A chasing bar for modulus of continuity
CN202741562U (en) Frame type die of flat plate numerical control punching machine
CN213436773U (en) Automatic stamping and positioning mechanism
CN111036763B (en) Automatic stamping equipment for automobile part production line and use method

Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned
AV01 Patent right actively abandoned

Granted publication date: 20161130

Effective date of abandoning: 20180717