CN112404583A - Foundry goods double-end cutting device - Google Patents
Foundry goods double-end cutting device Download PDFInfo
- Publication number
- CN112404583A CN112404583A CN202011333277.8A CN202011333277A CN112404583A CN 112404583 A CN112404583 A CN 112404583A CN 202011333277 A CN202011333277 A CN 202011333277A CN 112404583 A CN112404583 A CN 112404583A
- Authority
- CN
- China
- Prior art keywords
- cutting
- oil cylinder
- workpiece
- double
- clamping
- 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.)
- Pending
Links
- 238000005520 cutting process Methods 0.000 title claims abstract description 241
- 230000007246 mechanism Effects 0.000 claims abstract description 42
- 238000005266 casting Methods 0.000 claims abstract description 31
- 230000007306 turnover Effects 0.000 claims abstract description 13
- 230000005540 biological transmission Effects 0.000 claims description 46
- 230000001174 ascending effect Effects 0.000 claims description 30
- 238000004891 communication Methods 0.000 claims description 15
- 239000000428 dust Substances 0.000 claims description 8
- 230000001939 inductive effect Effects 0.000 claims description 7
- 230000002457 bidirectional effect Effects 0.000 claims description 6
- 238000001514 detection method Methods 0.000 claims description 6
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000007547 defect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 5
- 239000000463 material Substances 0.000 abstract description 3
- 230000006698 induction Effects 0.000 description 9
- 208000028571 Occupational disease Diseases 0.000 description 3
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000009191 jumping Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D47/00—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts
- B23D47/04—Sawing machines or sawing devices working with circular saw blades, characterised only by constructional features of particular parts of devices for feeding, positioning, clamping, or rotating work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
- B23D45/10—Sawing machines or sawing devices with circular saw blades or with friction saw discs with a plurality of circular saw blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/08—Protective coverings for parts of machine tools; Splash guards
Abstract
The invention discloses a double-head cutting device for a casting, which comprises a cutting device and a control box for controlling the whole machine; the cutting device consists of a cutting unit and a self-centering clamping mechanism; the self-centering clamping mechanism is arranged on the front side of the cutting unit in a turnover mode through a 180-degree rack type turnover oil cylinder; the cutting machine set comprises a cutting workbench frame, a supporting arm arranged on the cutting workbench frame in a sliding mode, and a cutting mechanism movably connected with the supporting arm through a lifting oil cylinder of the cutting machine; the casting double-head cutting device can realize man-machine separation, greatly improves the safety of operators, reduces the labor intensity of workers, and saves a large amount of manpower, material resources and cost.
Description
Technical Field
The invention relates to an automatic casting head cutting device, in particular to a double-head casting head cutting device, and belongs to the technical field of automation equipment.
Background
The casting double-head cutting device is mainly equipment for cutting casting heads for castings, and is heavy in castings, high in working labor intensity and large in cutting dust; and potential safety hazards such as spark splashing, scalding, jumping and slicing exist in the production and processing process, and the operation environment of workers is severe. Therefore, in order to solve the above problems, it is necessary to design an apparatus for automatically cutting a casting head.
Disclosure of Invention
In order to solve the problems, the invention provides a double-head cutting device for castings, which can realize man-machine separation, greatly improve the safety of operators, reduce the labor intensity of workers and save a large amount of manpower, material resources and cost.
The invention relates to a casting double-head cutting device, which comprises a cutting device and a control box for controlling the whole machine; the cutting device consists of a cutting unit and a self-centering clamping mechanism; the self-centering clamping mechanism is arranged on the front side of the cutting unit in a turnover mode through a 180-degree rack type turnover oil cylinder, and the 180-degree rack type turnover oil cylinder can drive the self-centering clamping mechanism to turn back and forth between a workpiece and the cutting unit; the cutting machine set comprises a cutting workbench frame, a supporting arm arranged on the cutting workbench frame in a sliding mode, and a cutting mechanism movably connected with the supporting arm through a lifting oil cylinder of the cutting machine;
the cutting mechanism comprises a supporting plate movably hinged with the cutting working table frame, a cutting motor fixedly arranged at one end of the supporting plate, and a cutting knife group in transmission connection with the cutting motor; the cutting knife group comprises two symmetrically arranged cutting knife seats; a cutting knife shaft penetrates through each cutting knife holder; one end of the cutting knife shaft penetrates through the cutting knife seat and is in transmission connection with a rotating shaft of the cutting motor through a motor transmission chain wheel; the other end of the cutting knife shaft is provided with a cutting knife; the cutting knives on the two sides are arranged oppositely; the supporting plate extends to the position of the cutting knife holder from one end of the supporting plate, which deviates from the cutting motor, and is fixedly connected with the cutting knife holder, when the 180-degree rack type overturning oil cylinder drives the self-centering clamping mechanism to overturn to the lower side of the cutting unit through 180 degrees, the ascending and descending oil cylinder of the cutting unit is ejected out to drive the two cutting blades to synchronously and rapidly descend, meanwhile, the cutting motor drives the cutting blades to rotate, when the cutting blades descend to shield infrared rays emitted by the photoelectric switch, the photoelectric switch acts to transmit signals to the control box, and the control box controls the ascending and descending oil cylinder of the cutting machine to enter a working state and slowly cut;
the self-centering clamping mechanism comprises a supporting seat connected with the front end of the 180-degree rack type overturning oil cylinder, and a clamping assembly and an overturning supporting oil cylinder which are arranged on the supporting seat; the overturning supporting oil cylinder is connected with the clamping assembly through an overturning supporting plate; the clamping assembly comprises two clamping double-acting oil cylinders which are symmetrically arranged in front and back; two ends of each clamping double-acting oil cylinder are respectively hinged with a transmission rod; the left and right adjacent transmission rods are connected through a connecting plate; the front and the back adjacent transmission rods are connected through a rotating shaft which is arranged at the end part of the connecting plate in a penetrating way; the top of each transmission rod is movably provided with a telescopic plate; the other end of the telescopic plate penetrates through guide sleeves arranged at four corners of the top of the supporting seat respectively and extends inwards to form a clamping opening for clamping a workpiece, the two clamping double-acting oil cylinders work and extend simultaneously, the telescopic plate is driven by the transmission rod to clamp the workpiece inwards, the connecting plate plays a balancing role, the two oil cylinders are connected in parallel to supply oil, the oil cylinders are suspended in the air, the center can be automatically positioned during clamping, the position of the workpiece is not changed, and the position of a cut is not changed after the workpiece is turned for 180 degrees; the front ends of the telescopic plates are provided with radians, so that when a workpiece is clamped, large pressure is generated between the telescopic plates and the guide sleeve, the telescopic plates can be locked in the guide sleeve, the workpiece is prevented from falling off and shifting, and the notch position is not changed after 180-degree turnover.
Furthermore, the upper side and the lower side of the supporting plate are provided with lug seats in a staggered manner; the upper lug seat is connected with a piston rod of a lifting oil cylinder of the cutting machine through a pin shaft; the cylinder body of the cutting machine ascending and descending oil cylinder is hinged with the top of the supporting arm through a pin shaft; the lower side of the ear seat is movably connected with an upright post which is vertically fixed at the front side of the cutting work bench through a pin shaft.
As a preferred embodiment, a hydraulic cylinder sliding table is arranged on one side, away from the self-centering clamping mechanism, of the cutting work table frame; the supporting arm is fixedly arranged on a sliding table of the hydraulic cylinder sliding table; the hydraulic cylinder of the hydraulic cylinder sliding table is a forward-pushing bidirectional cylinder, and the cutting mechanism can be driven to move back and forth by pushing the supporting arm to perform fine adjustment so as to realize complete cutting and separation of workpieces; a positioning switch is arranged at one end of the cutting workbench frame, which is close to the self-centering clamping mechanism; the positioning switch is in communication connection with the hydraulic cylinder sliding table through a PLC in the control box.
As a preferred embodiment, protective covers are further arranged on the peripheries of the two cutting knives; the dust cover is fixedly arranged at the rear sides of the two cutting knife seats, the sealed protective cover is additionally arranged, the dust cover can be connected with dust removal equipment, the safety of operators is greatly improved, and occupational diseases can be reduced.
Furthermore, the two clamping double-acting oil cylinders are arranged below the overturning supporting plate in a hanging mode, and the two clamping double-acting oil cylinders are connected in parallel to supply oil.
Furthermore, the overturning support supporting plate comprises an overturning support seat and two support supporting plates symmetrically arranged at the top of the overturning support seat; the two supporting plates are respectively movably erected on the guide sleeves on the left side and the right side, and the rear ends of the supporting plates are connected with the piston rods of the overturning supporting oil cylinders through overturning supporting seats.
Furthermore, a photoelectric switch is arranged on the outer side of the overturning support supporting plate; the photoelectric switch is fixedly connected with the supporting seat through a guide rod; the photoelectric switch is in communication connection with the cutting motor through a PLC in the control box, the photoelectric switch serves as a cutting signal switch, when the cutting blade descends to the position where infrared rays emitted by the photoelectric switch are shielded, the photoelectric switch acts to transmit signals to the control box, and the control box controls the cutting machine to ascend and descend the oil cylinder to enter a working state and cut slowly.
As a preferred embodiment, one end of the expansion plate, which is far away from the transmission rod, is of an arc structure, and a pressure switch is embedded in the expansion plate; the pressure switch is in communication connection with the 180-degree rack type turnover oil cylinder through a PLC in the control box, the pressure switch is used as a clamping signal switch, and after the pressure switch detects that a workpiece is clamped, the 180-degree rack type turnover oil cylinder drives the self-centering clamping mechanism to turn to the lower side of the cutting unit through 180 degrees.
Furthermore, the center of the top of the supporting seat is downwards sunken and is provided with a notch; an inductive switch is arranged in the notch; the induction switch is respectively in communication connection with the cutting machine ascending and descending oil cylinder, the clamping double-acting oil cylinder and the overturning support oil cylinder through a PLC (programmable logic controller) in the control box, when the workpiece drops to touch the induction switch, the cutting process is finished, and the cutting machine ascending and descending oil cylinder returns; the two clamping double-acting oil cylinders return, the dead head of the workpiece is loosened, the overturning supporting oil cylinder is ejected out to drive the overturning supporting plate to incline, the workpiece and the dead head automatically slide down, and the induction switch is used as a cutting finishing signal and can adopt a pressure induction type switch and the like.
As a preferred embodiment, the cutting machine also comprises a motor current detection module for detecting the running current of the cutting motor; the motor current detection module is in communication connection with a hydraulic valve of an ascending and descending oil cylinder of the cutting machine through a PLC (programmable logic controller) in the control box, and is used for detecting the motor current in real time so as to ensure that a motor and a slice do not block rotation and realize protection by detecting the motor current to control the hydraulic valve; and when the current is larger than the set current value, the ascending and descending oil cylinder of the cutting machine stops ejecting, the cutting blade stops descending, if the current is continuously increased, the ascending and descending oil cylinder of the cutting machine retreats to drive the cutting blade to retreat until the current is smaller than the set value, and the cutting is continued until the workpiece is completely separated from the casting head.
Compared with the prior art, the double-head cutting device for the casting has the advantages that the automation degree is high, the man-machine separation can be realized, the airtight protective cover is additionally arranged, the safety of an operator is greatly improved, occupational diseases can be reduced, the labor intensity of workers is reduced, and a large amount of manpower, material resources and cost are saved.
Drawings
Fig. 1 is a schematic front view of the present invention.
Fig. 2 is a schematic top view of the present invention.
FIG. 3 is a front view of the self-centering clamping mechanism of the present invention.
FIG. 4 is a schematic top view of the self-centering clamping mechanism of the present invention.
The components in the drawings are labeled as: 1-cutting worktable frame, 2-forward pushing bidirectional oil cylinder, 3-supporting arm, 4-cutting motor, 5-cutting machine ascending and descending oil cylinder, 6-cutting piece, 7-positioning switch, 8-photoelectric switch, 9-workpiece to be cut, 10-overturning supporting oil cylinder, 11-overturning supporting pallet, 12-180 DEG rack-type overturning oil cylinder, 13-motor driving chain wheel, 14-clamping double-acting oil cylinder, 15-driving rod, 16-expansion plate, 161-first expansion plate, 162-second expansion plate, 163-third expansion plate, 164-fourth expansion plate, 17-connecting plate, 18-cutting knife seat, 19-cutting knife shaft, 20-guide sleeve, 21-riser of clamped piece, 22-supporting plate, 23-upper side ear seat, 24-supporting seat, 25-rotating shaft, 26-lower side ear seat and 27-upright post.
Detailed Description
Example 1:
the double-head cutting device for the castings shown in the figures 1 to 4 comprises a cutting device and a control box for controlling the whole machine; the cutting device consists of a cutting unit and a self-centering clamping mechanism; the self-centering clamping mechanism is arranged on the front side of the cutting unit in an overturning manner through a 180-degree rack type overturning oil cylinder 12, and the 180-degree rack type overturning oil cylinder can drive the self-centering clamping mechanism to overturn back and forth between a workpiece and the cutting unit; the cutting machine set comprises a cutting work bench 1, a supporting arm 3 arranged on the cutting work bench 1 in a sliding mode, and a cutting mechanism movably connected with the supporting arm 3 through a cutting machine ascending and descending oil cylinder 5;
the cutting mechanism comprises a supporting plate 22 movably hinged with the cutting work table frame 1, a cutting motor 4 fixedly arranged at one end of the supporting plate 22, and a cutting knife group in transmission connection with the cutting motor 4; the cutting knife group comprises two symmetrically arranged cutting knife seats 18; a cutting knife shaft 19 penetrates through each cutting knife seat 18; one end of the cutting knife shaft 19 penetrates through the cutting knife seat 18 and is in transmission connection with a rotating shaft of the cutting motor 4 through a motor transmission chain wheel 13; the other end of the cutting knife shaft 19 is provided with a cutting knife 6; the cutting knives 6 on the two sides are arranged oppositely; the supporting plate 22 extends to the cutting knife holder 18 from one end of the cutting motor 4 and is fixedly connected with the cutting knife holder 18, when the 180-degree rack type overturning oil cylinder drives the self-centering clamping mechanism to overturn to the lower side of the cutting unit through 180 degrees, the ascending and descending oil cylinder of the cutting unit is ejected out to drive the two cutting blades to synchronously and rapidly descend, meanwhile, the cutting motor drives the cutting blades to rotate, when the cutting blades descend to shield infrared rays emitted by the photoelectric switch, the photoelectric switch acts to transmit signals to the control box, and the control box controls the ascending and descending oil cylinder of the cutting machine to enter a working state and slowly cut;
the self-centering clamping mechanism comprises a supporting seat 24 connected with the front end of the 180-degree rack type overturning oil cylinder 12, and a clamping assembly and an overturning supporting oil cylinder 10 which are arranged on the supporting seat 24; the overturning supporting oil cylinder 10 is connected with the clamping assembly through an overturning supporting plate 11; the clamping assembly comprises two clamping double-acting oil cylinders 14 which are symmetrically arranged front and back; two ends of each clamping double-acting oil cylinder 14 are respectively hinged with a transmission rod 15; the left and right adjacent transmission rods 15 are connected through a connecting plate 17; the front and the back adjacent transmission rods 17 are connected through a rotating shaft 25 which is arranged at the end part of the connecting plate 17 in a penetrating way; the top of each transmission rod 17 is movably provided with a telescopic plate 16; the other end of the telescopic plate 16 penetrates through the guide sleeves 20 arranged at four corners of the top of the supporting seat 24 respectively and extends inwards to form a clamping opening for clamping a workpiece, the two clamping double-acting oil cylinders work and extend simultaneously, the telescopic plate is driven by the transmission rod to clamp the workpiece inwards, the connecting plate plays a balance role, the two oil cylinders are connected in parallel to supply oil, the oil cylinders are suspended in the air, the center can be automatically positioned during clamping, the position of the workpiece is not changed, and the position of a cut is not changed after the workpiece is turned for 180 degrees; the front ends of the telescopic plates are provided with radians, so that when a workpiece is clamped, large pressure is generated between the telescopic plates and the guide sleeve, the telescopic plates can be locked in the guide sleeve, the workpiece is prevented from falling off and shifting, and the position of a notch is not changed after the workpiece is turned over for 180 degrees;
the cutting machine also comprises a motor current detection module for detecting the running current of the cutting motor; the motor current detection module is in communication connection with a hydraulic valve of an ascending and descending oil cylinder of the cutting machine through a PLC (programmable logic controller) in the control box, and is used for detecting the motor current in real time so as to ensure that a motor and a slice do not block rotation and realize protection by detecting the motor current to control the hydraulic valve; and when the current is larger than the set current value, the ascending and descending oil cylinder of the cutting machine stops ejecting, the cutting blade stops descending, if the current is continuously increased, the ascending and descending oil cylinder of the cutting machine retreats to drive the cutting blade to retreat until the current is smaller than the set value, and the cutting is continued until the workpiece is completely separated from the casting head.
The upper side and the lower side of the supporting plate 22 are provided with ear seats in a staggered manner; the upper lug seat 23 is connected with a piston rod of the ascending and descending oil cylinder 5 of the cutting machine through a pin shaft; the cylinder body of the cutting machine ascending and descending oil cylinder 5 is hinged with the top of the supporting arm 3 through a pin shaft; the lower ear seat 26 is movably connected with an upright post 27 which is vertically fixed on the front side of the cutting work bench 1 through a pin shaft.
A hydraulic cylinder sliding table is arranged on one side, away from the self-centering clamping mechanism, of the cutting work table frame; the supporting arm is fixedly arranged on a sliding table of the hydraulic cylinder sliding table; the hydraulic cylinder of the hydraulic cylinder sliding table is a forward-pushing bidirectional cylinder, and the cutting mechanism can be driven to move back and forth by pushing the supporting arm to perform fine adjustment so as to realize complete cutting and separation of workpieces; a positioning switch is arranged at one end of the cutting workbench frame, which is close to the self-centering clamping mechanism; the positioning switch is in communication connection with the hydraulic cylinder sliding table through a PLC in the control box.
The peripheries of the two cutting knives 6 are also provided with protective covers; the dust cover is fixedly arranged at the rear sides of the two cutting knife seats 18, a closed protective cover is additionally arranged, the dust cover can be connected with dust removal equipment, the safety of operators is greatly improved, and occupational diseases can be reduced.
The two clamping double-acting oil cylinders 14 are arranged below the overturning supporting plate 11 in a suspending mode, and the two clamping double-acting oil cylinders 14 are connected in parallel to supply oil.
The overturning supporting plate 11 consists of two symmetrically arranged supporting plates; the two support supporting plates are respectively movably erected on the guide sleeves 20 at the left side and the right side, and the rear ends of the support supporting plates are connected with the piston rods of the overturning support oil cylinders 10 through guide seats.
The photoelectric switch 8 is arranged on the outer side of the overturning supporting plate 11; the photoelectric switch 8 is fixedly connected with the supporting seat 24 through a guide rod; the photoelectric switch 8 is in communication connection with the cutting motor 4 through a PLC in the control box, the photoelectric switch is used as a cutting signal switch, when the cutting blade descends to shield infrared rays emitted by the photoelectric switch, the photoelectric switch acts to transmit signals to the control box, and the control box controls the cutting machine to ascend and descend the oil cylinder to enter a working state and cut slowly.
One end of the expansion plate 16, which is far away from the transmission rod 15, is of an arc structure, and a pressure switch is embedded in the expansion plate; the pressure switch is in communication connection with the 180-degree rack type turnover oil cylinder 12 through a PLC in the control box, the pressure switch is used as a clamping signal switch, and after the pressure switch detects that a workpiece is clamped, the 180-degree rack type turnover oil cylinder drives the self-centering clamping mechanism to turn to the lower side of the cutting unit through 180 degrees.
The center of the top of the supporting seat 24 is sunken downwards and is provided with a notch; an inductive switch is arranged in the notch; the induction switch is respectively in communication connection with the cutter ascending and descending oil cylinder 5, the clamping double-acting oil cylinder 14 and the overturning support oil cylinder 10 through a PLC (programmable logic controller) in the control box, when the workpiece drops to touch the induction switch, the cutting process is finished, and the cutter ascending and descending oil cylinder returns; the two clamping double-acting oil cylinders return, the dead head of the workpiece is loosened, the overturning supporting oil cylinder is ejected out to drive the overturning supporting plate to incline, the workpiece and the dead head automatically slide down, and the induction switch is used as a cutting finishing signal and can adopt a pressure induction type switch and the like.
The casting double-head cutting device disclosed by the invention has the following working principle:
firstly, a cut workpiece is shaped and then placed at a preset position, a 180-degree rack type overturning oil cylinder 12 drives a self-centering clamping mechanism to overturn to the upper side of the workpiece by 180 degrees, at the moment, the self-centering clamping mechanism works, two clamping double-acting oil cylinders 14 simultaneously work and extend, a telescopic plate 16 is driven by a transmission rod 15 to clamp the workpiece inwards, a connecting plate 17 plays a balance role, the two oil cylinders are connected in parallel to supply oil, the oil cylinders are suspended, the center can be automatically positioned during clamping, the position of the workpiece is not changed, and the position of a cut is not changed after the workpiece is overturned by 180 degrees;
specifically, the two clamping double-acting cylinders 14 are a first clamping double-acting cylinder and a second clamping double-acting cylinder, respectively; the transmission rod comprises a front transmission rod group and a rear transmission rod group which are arranged in a front-rear opposite direction; the front transmission rod group consists of two first transmission rods which are arranged symmetrically left and right; the rear transmission rod group consists of two second transmission rods which are symmetrically arranged left and right; the expansion plates consist of a first expansion plate 161-164 to a fourth expansion plate 161-164;
when a first clamping double-acting oil cylinder in the two clamping double-acting oil cylinders 14 drives a third expansion plate 163 and a fourth expansion plate 164 through a first transmission rod, a second clamping double-acting oil cylinder drives the first expansion plate 161 and the second expansion plate 162 through a second transmission rod to simultaneously move inwards to clamp a workpiece riser, the center position of the individual workpiece riser deviates due to thermal expansion and cold contraction of a casting process, external force and the like, the first expansion plate 161 and the second expansion plate 162 move inwards, if the first expansion plate 161 contacts the riser of the workpiece, the second clamping double-acting oil cylinder is suspended, the first expansion plate 161 stops moving, the second expansion plate 162 continues moving inwards until the workpiece riser stops contacting, the third expansion plate 163 and the fourth expansion plate 164 clamp the workpiece riser due to the suspension of the first clamping double-acting oil cylinder, the first clamping double-acting oil cylinder and the second clamping double-acting oil cylinder are connected in parallel for supplying oil, the pressure of the first clamping double-acting oil cylinder and the pressure of the second clamping double-acting oil cylinder can be simultaneously increased to a set pressure only when the first expansion plate 161, the second expansion plate 162, the third expansion plate 163 and the fourth expansion plate 164 all contact with a workpiece riser, so that the workpiece is clamped without changing the position of the workpiece;
the front ends of the first expansion plate to the fourth expansion plate 161-164 are provided with radians, so that when a workpiece is clamped, large pressure is generated between the expansion plate and the guide sleeve 20, the expansion plate can be locked in the guide sleeve 20, the workpiece is prevented from falling and shifting, and the notch position is not changed after the workpiece is turned over by 180 degrees;
after the workpiece is detected to be clamped through the pressure switch, the 180-degree rack type overturning oil cylinder 12 drives the self-centering clamping mechanism to overturn to the lower part of the cutting unit through 180 degrees; the ascending and descending oil cylinder 5 of the cutting unit is ejected out to drive the two cutting pieces 6 to synchronously and quickly descend, meanwhile, the cutting motor 4 drives the cutting pieces 6 to rotate, when the cutting pieces 6 descend to shield infrared rays emitted by the photoelectric switch 8, the photoelectric switch 8 acts to transmit signals to the control box, and the control box controls the electromagnetic valve, so that the ascending and descending oil cylinder 5 of the cutting machine enters a working state and slowly cuts; in order to ensure that the motor and the slices do not block the rotation, the hydraulic valve is controlled by detecting the current of the motor to realize protection; when the current is larger than the set current value, the ascending and descending oil cylinder 5 of the cutting machine stops ejecting, the cutting blade 6 stops descending, if the current is continuously increased, the ascending and descending oil cylinder 5 of the cutting machine retreats to drive the cutting blade 6 to retreat until the current is smaller than the set value, and the cutting is continued until the workpiece is completely separated from the casting head;
after cutting, the workpiece sags to touch an induction switch, the cutting is finished, but the workpiece is not completely cut and separated when the whole cutting machine descends to a lower dead point (cutting limit position) due to casting defects, small slices and other factors, a positioning switch 7 is switched on, a signal is transmitted to an operation box, and the electromagnetic valve is controlled by the operation box, so that a hydraulic cylinder (a forward-pushing bidirectional oil cylinder 2) of a hydraulic cylinder sliding table drives the whole cutting mechanism to move forwards for cutting; after cutting, when the workpiece droops to touch the inductive switch, the cutting process is finished, and the cutting machine ascends and descends the oil cylinder 5 to return; the two clamping double-acting oil cylinders 14 return, the riser of the workpiece is loosened, the overturning supporting oil cylinder 10 is ejected out to drive the overturning supporting plate 11 to incline, and the workpiece and the riser automatically slide down; thus completing a work cycle.
The above-described embodiments are merely preferred embodiments of the present invention, and all equivalent changes or modifications of the structures, features and principles described in the claims of the present invention are included in the scope of the present invention.
Claims (10)
1. A double-head cutting device for castings comprises a cutting device and a control box for controlling the whole machine; the method is characterized in that: the cutting device consists of a cutting unit and a self-centering clamping mechanism; the self-centering clamping mechanism is arranged on the front side of the cutting unit in a turnover mode through a 180-degree rack type turnover oil cylinder; the cutting machine set comprises a cutting workbench frame, a supporting arm arranged on the cutting workbench frame in a sliding mode, and a cutting mechanism movably connected with the supporting arm through a lifting oil cylinder of the cutting machine;
the cutting mechanism comprises a supporting plate movably hinged with the cutting working table frame, a cutting motor fixedly arranged at one end of the supporting plate, and a cutting knife group in transmission connection with the cutting motor; the cutting knife group comprises two symmetrically arranged cutting knife seats; a cutting knife shaft penetrates through each cutting knife holder; one end of the cutting knife shaft penetrates through the cutting knife seat and is in transmission connection with a rotating shaft of the cutting motor through a motor transmission chain wheel; the other end of the cutting knife shaft is provided with a cutting knife; the cutting knives on the two sides are arranged oppositely; one end of the supporting plate, which is far away from the cutting motor, extends to the cutting tool apron and is fixedly connected with the cutting tool apron;
the self-centering clamping mechanism comprises a supporting seat connected with the front end of the 180-degree rack type overturning oil cylinder, and a clamping assembly and an overturning supporting oil cylinder which are arranged on the supporting seat; the overturning supporting oil cylinder is connected with the clamping assembly through an overturning supporting plate; the clamping assembly comprises two clamping double-acting oil cylinders which are symmetrically arranged in front and back; two ends of each clamping double-acting oil cylinder are respectively hinged with a transmission rod; the left and right adjacent transmission rods are connected through a connecting plate; the front and the back adjacent transmission rods are connected through a rotating shaft which is arranged at the end part of the connecting plate in a penetrating way; the top of each transmission rod is movably provided with a telescopic plate; the other end of the telescopic plate penetrates through guide sleeves arranged at four corners of the top of the supporting seat respectively and extends inwards to form a clamping opening for clamping a workpiece;
the cutting machine also comprises a motor current detection module for detecting the running current of the cutting motor; and the motor current detection module is in communication connection with a hydraulic valve of the ascending and descending oil cylinder of the cutting machine through a PLC (programmable logic controller) in the control box.
2. The double-ended cutting apparatus for castings according to claim 1, wherein: the upper side and the lower side of the supporting plate are provided with lug seats in a staggered manner; the upper lug seat is connected with a piston rod of a lifting oil cylinder of the cutting machine through a pin shaft; the cylinder body of the cutting machine ascending and descending oil cylinder is hinged with the top of the supporting arm through a pin shaft; the lower side of the ear seat is movably connected with an upright post which is vertically fixed at the front side of the cutting work bench through a pin shaft.
3. The double-ended cutting apparatus for castings according to claim 1, wherein: a hydraulic cylinder sliding table is arranged on one side, away from the self-centering clamping mechanism, of the cutting work table frame; the supporting arm is fixedly arranged on a sliding table of the hydraulic cylinder sliding table; the hydraulic cylinder of the hydraulic cylinder sliding table is a forward-pushing bidirectional oil cylinder; a positioning switch is arranged at one end of the cutting workbench frame, which is close to the self-centering clamping mechanism; the positioning switch is in communication connection with the hydraulic cylinder sliding table through a PLC in the control box.
4. The double-ended cutting apparatus for castings according to claim 1, wherein: the peripheries of the two cutting knives are also provided with protective covers; the dust cover is fixedly arranged at the rear sides of the two cutting tool holders.
5. The double-ended cutting apparatus for castings according to claim 1, wherein: the two clamping double-acting oil cylinders are arranged below the overturning supporting plate in a hanging mode, and the two clamping double-acting oil cylinders are connected in parallel to supply oil.
6. The double-ended cutting apparatus for castings according to claim 1 or 5, characterized in that: the overturning support plate comprises an overturning support seat and two support plates symmetrically arranged at the top of the overturning support seat; the two supporting plates are respectively movably erected on the guide sleeves on the left side and the right side, and the rear ends of the supporting plates are connected with the piston rods of the overturning supporting oil cylinders through overturning supporting seats.
7. The double-ended cutting apparatus for castings according to claim 1, wherein: a photoelectric switch is arranged on the outer side of the overturning supporting plate; the photoelectric switch is fixedly connected with the supporting seat through a guide rod; the photoelectric switch is in communication connection with the cutting motor through a PLC in the control box.
8. The double-ended cutting apparatus for castings according to claim 1, wherein: one end of the telescopic plate, which is far away from the transmission rod, is of an arc structure, and a pressure switch is embedded in the telescopic plate; the pressure switch is in communication connection with the 180-degree rack type turnover oil cylinder through a PLC (programmable logic controller) in the control box.
9. The double-ended cutting apparatus for castings according to claim 1, wherein: the center of the top of the supporting seat is downwards sunken and a notch is formed; an inductive switch is arranged in the notch; the inductive switch is respectively in communication connection with the ascending and descending oil cylinder, the clamping double-acting oil cylinder and the overturning supporting oil cylinder of the cutting machine through a PLC (programmable logic controller) in the control box.
10. The double-ended cutting apparatus for castings according to claim 1, wherein: the working principle of the device is as follows:
firstly, a cut workpiece is shaped and then placed at a preset position, a 180-degree rack type overturning oil cylinder drives a self-centering clamping mechanism to overturn to the upper side of the workpiece by 180 degrees, at the moment, the self-centering clamping mechanism works, two clamping double-acting oil cylinders simultaneously work and extend, a flexible plate is driven by a transmission rod to clamp the workpiece inwards, and a connecting plate completes a balance function;
specifically, the two clamping double-acting oil cylinders are respectively a first clamping double-acting oil cylinder and a second clamping double-acting oil cylinder; the transmission rod comprises a front transmission rod group and a rear transmission rod group which are arranged in a front-rear opposite direction; the front transmission rod group consists of two first transmission rods which are arranged symmetrically left and right; the rear transmission rod group consists of two second transmission rods which are symmetrically arranged left and right; the expansion plate consists of a first expansion plate to a fourth expansion plate; when a first clamping double-acting oil cylinder in the two clamping double-acting oil cylinders drives a third expansion plate and a fourth expansion plate through a first transmission rod, a second clamping double-acting oil cylinder drives the first expansion plate and the second expansion plate through a second transmission rod to simultaneously move inwards to clamp a workpiece riser, when the central position of the individual workpiece riser deviates, the first expansion plate and the second expansion plate move inwards, if the first expansion plate contacts the riser of the workpiece firstly, because the second clamping double-acting oil cylinder is suspended, the first expansion plate stops moving, the second expansion plate continues moving inwards until the second expansion plate stops contacting the workpiece riser, the third expansion plate and the fourth expansion plate can also have the same action when the suspended workpiece riser of the first clamping double-acting oil cylinder clamps the workpiece, the first clamping double-acting oil cylinder and the second clamping double-acting oil cylinder are supplied with oil in parallel, and only the first expansion plate, the second expansion plate and the third expansion plate, When the third expansion plate and the fourth expansion plate are in full contact with a workpiece riser, the pressure of the first clamping double-acting oil cylinder and the pressure of the second clamping double-acting oil cylinder can be simultaneously increased to a set pressure, so that the workpiece is clamped without changing the position of the workpiece;
the front ends of the first telescopic plate to the fourth telescopic plate are provided with radians, so that when a workpiece is clamped, large pressure is generated between the first telescopic plate and the fourth telescopic plate and the guide sleeve, the telescopic plates can be locked in the guide sleeve, the workpiece is prevented from falling and shifting, and the notch position is not changed after the workpiece is turned over by 180 degrees;
after the pressure switch detects that the workpiece is clamped, the 180-degree rack type overturning oil cylinder drives the self-centering clamping mechanism to overturn to the lower part of the cutting unit through 180 degrees; the ascending and descending oil cylinder of the cutting unit is ejected out to drive the two cutting blades to synchronously and quickly descend, meanwhile, the cutting motor drives the cutting blades to rotate, when the cutting blades descend to shield infrared rays emitted by the photoelectric switch, the photoelectric switch acts to transmit signals to the control box, and the control box controls the electromagnetic valve to enable the ascending and descending oil cylinder of the cutting machine to enter a working state and slowly cut; in order to ensure that the motor and the slices do not block the rotation, the hydraulic valve is controlled by detecting the current of the motor to realize protection; when the current is larger than the set current value, the ascending and descending oil cylinder of the cutting machine stops ejecting, the cutting blade stops descending, if the current is continuously increased, the ascending and descending oil cylinder of the cutting machine retreats to drive the cutting blade to retreat until the current is smaller than the set value, and the cutting is continued until the workpiece is completely separated from the casting head;
after cutting, the workpiece sags to touch the inductive switch, the cutting is finished, but the workpiece is not completely cut and separated when the whole cutting machine descends to a lower dead point (cutting limit position) due to casting defects, excessively small slices and other factors, the positioning switch is switched on, a signal is transmitted to the control box, the control box controls the electromagnetic valve, so that the hydraulic cylinder sliding table pushes the bidirectional oil cylinder forwards to drive the whole cutting mechanism to move forwards for cutting; after cutting, when the workpiece droops to touch the inductive switch, the cutting process is finished, and the cutting machine ascends and descends the oil cylinder to return; the two clamping double-acting oil cylinders return, the dead head of the workpiece is loosened, the overturning supporting oil cylinder is ejected out to drive the overturning supporting plate to incline, and the workpiece and the dead head automatically slide down; thus completing a work cycle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011333277.8A CN112404583A (en) | 2020-11-25 | 2020-11-25 | Foundry goods double-end cutting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011333277.8A CN112404583A (en) | 2020-11-25 | 2020-11-25 | Foundry goods double-end cutting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112404583A true CN112404583A (en) | 2021-02-26 |
Family
ID=74777740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011333277.8A Pending CN112404583A (en) | 2020-11-25 | 2020-11-25 | Foundry goods double-end cutting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112404583A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309789A (en) * | 2021-12-23 | 2022-04-12 | 江苏艾克赛勒金属科技有限公司 | Isometric cutting equipment is used in cylinder jacket production |
| CN116475490A (en) * | 2023-06-09 | 2023-07-25 | 正阳科技股份有限公司 | Cutting machine |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204487225U (en) * | 2015-03-17 | 2015-07-22 | 浙江晨龙锯床股份有限公司 | A kind of Double-station clamp for double high-speed vertical band sawing machine |
| CN204700591U (en) * | 2015-05-04 | 2015-10-14 | 河南科技大学 | A kind of self adaptation clamp system |
| JP2015182149A (en) * | 2014-03-20 | 2015-10-22 | 株式会社スギノマシン | Clamp device and clamp method |
| CN206351248U (en) * | 2016-12-26 | 2017-07-25 | 中船重工西安东仪科工集团有限公司 | A kind of gate cutting machine |
| CN208230973U (en) * | 2018-04-03 | 2018-12-14 | 湖北乾奥建设工程有限公司 | Fully automatic cutting machine for building pipe cutting |
| US20190358742A1 (en) * | 2017-01-23 | 2019-11-28 | Kun Shan Theta Micro Co., Ltd | Automatic step steel plate cutting and welding device, and method thereof |
| CN111390280A (en) * | 2020-03-30 | 2020-07-10 | 丽水市莲都区升嘉文凯模具厂 | Connecting hole processing equipment for windscreen wiper joint |
| CN211804142U (en) * | 2019-12-20 | 2020-10-30 | 苏州讯思维尔智能科技有限公司 | Double-end cutting machine |
-
2020
- 2020-11-25 CN CN202011333277.8A patent/CN112404583A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2015182149A (en) * | 2014-03-20 | 2015-10-22 | 株式会社スギノマシン | Clamp device and clamp method |
| CN204487225U (en) * | 2015-03-17 | 2015-07-22 | 浙江晨龙锯床股份有限公司 | A kind of Double-station clamp for double high-speed vertical band sawing machine |
| CN204700591U (en) * | 2015-05-04 | 2015-10-14 | 河南科技大学 | A kind of self adaptation clamp system |
| CN206351248U (en) * | 2016-12-26 | 2017-07-25 | 中船重工西安东仪科工集团有限公司 | A kind of gate cutting machine |
| US20190358742A1 (en) * | 2017-01-23 | 2019-11-28 | Kun Shan Theta Micro Co., Ltd | Automatic step steel plate cutting and welding device, and method thereof |
| CN208230973U (en) * | 2018-04-03 | 2018-12-14 | 湖北乾奥建设工程有限公司 | Fully automatic cutting machine for building pipe cutting |
| CN211804142U (en) * | 2019-12-20 | 2020-10-30 | 苏州讯思维尔智能科技有限公司 | Double-end cutting machine |
| CN111390280A (en) * | 2020-03-30 | 2020-07-10 | 丽水市莲都区升嘉文凯模具厂 | Connecting hole processing equipment for windscreen wiper joint |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114309789A (en) * | 2021-12-23 | 2022-04-12 | 江苏艾克赛勒金属科技有限公司 | Isometric cutting equipment is used in cylinder jacket production |
| CN114309789B (en) * | 2021-12-23 | 2023-05-30 | 江苏艾克赛勒金属科技有限公司 | Equal-length cutting equipment for cylinder sleeve production |
| CN116475490A (en) * | 2023-06-09 | 2023-07-25 | 正阳科技股份有限公司 | Cutting machine |
| CN116475490B (en) * | 2023-06-09 | 2024-04-02 | 正阳科技股份有限公司 | Cutting machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112404583A (en) | Foundry goods double-end cutting device | |
| EP3049205B1 (en) | Machine for cutting sheets, particularly of marble, granite, glass and composite materials | |
| CN106944864A (en) | A kind of automobile hanging ball pin housing machine for automatic working platform | |
| US4558616A (en) | Punch press having retractable punching tools | |
| CN206882604U (en) | A kind of electric horn static iron core riveting machine | |
| CN105397498A (en) | Indoor flower stand processing and production line | |
| CN213591923U (en) | Foundry goods double-end cutting device | |
| CN102873399B (en) | Automatic cutter conveying device of horizontal type broaching machine | |
| CN212239324U (en) | Full-automatic cutting machining device for handle gear | |
| CN207026585U (en) | A kind of front shroud technique lug automatic cut-off device of heavy duty truck engine | |
| CN110814838A (en) | Automatic tooth opening manipulator device | |
| CN107855590A (en) | Aluminium knuckle is cut automatically emits machine | |
| CN215315930U (en) | Edge trimmer | |
| CN216966878U (en) | Water pipe press-fitting machine | |
| CN210790445U (en) | Full-automatic cantilever grinding machine | |
| CN213257553U (en) | Automatic feeding and discharging mechanism capable of achieving accurate positioning for thread grinder | |
| CN210281677U (en) | Parallel double-platform grinding head movable horizontal-shaft circular-table surface grinding machine | |
| CN109759641B (en) | Short material circular saw equipment | |
| CN110561248A (en) | full-automatic cantilever grinding machine | |
| CN111015224A (en) | Milling equipment and milling method | |
| CN112975537B (en) | Full-automatic saw bit reaming machine | |
| CN211277550U (en) | Cutter arm structure of vertical machining center | |
| CN216464596U (en) | Multi-joint flexible feeding and discharging mechanism for machining integral cutter | |
| CN213317578U (en) | Special machine is got rid of to die-casting cylinder body stub bar | |
| CN217413154U (en) | Machine tool |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20210226 |
|
| WD01 | Invention patent application deemed withdrawn after publication |