CN107803550B - Pneumatic material supporting mechanism, control system and material supporting method of plate shearing machine - Google Patents
Pneumatic material supporting mechanism, control system and material supporting method of plate shearing machine Download PDFInfo
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- CN107803550B CN107803550B CN201711329885.XA CN201711329885A CN107803550B CN 107803550 B CN107803550 B CN 107803550B CN 201711329885 A CN201711329885 A CN 201711329885A CN 107803550 B CN107803550 B CN 107803550B
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- 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
- B23D33/00—Accessories for shearing machines or shearing devices
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- 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
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/06—Sheet shears
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
Abstract
The invention discloses a pneumatic material supporting mechanism, a control system and a material supporting method of a plate shearing machine, and belongs to the technical field of plate shearing machines. The invention relates to a rear material supporting pneumatic control system of a plate shearing machine, which comprises an air cylinder, an electromagnetic valve and a two-position electromagnetic valve, wherein a rod cavity of the air cylinder is connected with a port B of the electromagnetic valve, and a rodless cavity of the air cylinder is connected with a port A of the electromagnetic valve through a one-way throttle valve on one hand and connected with a port B of the two-position electromagnetic valve through a pipeline on the other hand; the P port of the electromagnetic valve is connected with an air source through a pressure reducing valve and a quick connector. The pneumatic material supporting mechanism of the plate shearing machine comprises a rear material supporting device and the pneumatic control system. By adopting the technical scheme of the invention, the gap between the material supporting plate and the workbench can be effectively reduced, so that the use requirements of plates with different lengths to be sheared are met, the plates can be effectively prevented from being distorted and deformed at the knife edge position, and the shearing quality and precision of the plates are ensured.
Description
Technical Field
The invention belongs to the technical field of plate shearing machines, and particularly relates to a pneumatic material supporting mechanism of a high-precision plate shearing machine, a rear material supporting pneumatic control system and a material supporting method.
Background
In the machine manufacturing industry, the plate shearing machine is a common processing device, is mainly applied to shearing and blanking of plate workpieces, has the characteristics of simplicity and convenience in operation and high working efficiency, and is widely applied to the processing of shearing pieces in the industries of general machine manufacturing, automobiles, container manufacturing, switching devices, light industry and the like. The existing plate shearing machine is similar in working principle and structural type, generally, a lower cutter frame is fixed, a workpiece to be machined is conveyed to a position where an upper cutter blade and a lower cutter blade are crossed and meshed by each other by a plate shearing machine workbench, power is transmitted to an upper cutter frame through a crankshaft, and the upper cutter frame moves up and down in a sliding guide rail, so that the upper cutter blade is driven to move up and down, and shearing of the workpiece to be machined is completed.
When the plate shearing machine is adopted for shearing plates, a rear material blocking device is usually arranged, but when the sheared plates are wider, the sheared plates sag due to the dead weight of the rear plates, the sagged plates cannot contact the material blocking plate, and at the moment, the rear material blocking cannot play a role or the positioning accuracy cannot be guaranteed. Many times, the staff adopts the setting-out to cut, and the sheet material precision of setting-out cutting out like this is not so good, adopts the setting-out to cut simultaneously and wastes time and energy, and the benefit is low. To above problem, many hold in the palm the material mode has been developed among the prior art, and most all adopt pneumatic to hold in the palm the material device, but current structural design who holds in the palm the material device is complicated, processing is loaded down with trivial details, with high costs, and holds in the palm the material distance big, and the flitch lid of lying when blanking can not live.
For example, chinese patent application No.: 201320833175.1, filing date: 12 months and 17 days in 2013, the invention is named: the utility model provides a pneumatic back of plate shearing machine holds in palm material device, holds in palm material device includes the frame, be equipped with the slip board in the frame, one side of frame is equipped with the pivot, be equipped with two parallel triangle-shaped's brackets on the pivot, the bracket below is equipped with upper and lower cylinder, the bottom and the frame of upper and lower cylinder be connected, the upper end piston rod and the bracket surface hinge of upper and lower cylinder, the bracket can be around the counter-clockwise rotation of pivot to horizontal position under the drive of upper and lower cylinder.
Most of the existing plate shearing machines adopt the triangular material supporting frame structure, but when the size of the plate is smaller, due to the fact that the adjacent material supporting frames are provided with intervals, the phenomenon of material leakage occurs, and the material leakage impacts a material supporting table below the material supporting frames to generate noise and cause damage to the plate and equipment; meanwhile, the two material supporting frames are hinged to the hinged base welded with the workbench, so that the material supporting frames are difficult to ensure the ascending pace to be consistent under the asynchronous condition of the pneumatic cylinders, the flatness of the plate is affected, and the shearing precision and the quality are reduced.
For another example, chinese patent application No.: 201620727150.7, the application date is 2016, 7, 11, and the invention is named: the application comprises a material supporting frame, a synchronous shaft, a blanking plate, an air cylinder and a shaft seat, wherein the shaft seat is fixedly arranged on the vertical plate, the synchronous shaft is arranged on the shaft seat, and a bearing is arranged between the synchronous shaft and the shaft seat; the material supporting frame is fixedly arranged on the synchronous shaft through a material supporting fixing module; the cylinder body end of the cylinder is connected with the channel steel which is relatively fixed with the workbench, and the piston rod end of the cylinder is connected with the synchronous shaft. The material supporting device of the application is still larger in influence of the length of the plate to be processed, and the material supporting device cannot be used for supporting the plate when the length of the plate is shorter, so that the processing precision of the plate cannot be guaranteed, and meanwhile, due to the fact that a large gap exists between the material supporting frame and the blanking plate, the plate which is produced by shearing is easy to insert into the gap, manual taking is needed, and the operation is troublesome.
In addition, when the existing pneumatic material supporting device is adopted, the swinging speed of the material supporting frame is difficult to control, and when the plate is not sheared, the plate is easy to sag due to the fact that the material supporting device descends, so that the plate is distorted and deformed at the knife edge position, and shearing quality of the plate is affected.
Disclosure of Invention
1. Technical problem to be solved by the invention
The invention aims to overcome the defects of the existing plate shearing machine material supporting control system and provides a rear material supporting pneumatic control system of a high-precision plate shearing machine.
The invention also aims to overcome the defects of the material supporting device of the traditional plate shearing machine and provide a pneumatic material supporting mechanism and a material supporting method of the high-precision plate shearing machine.
2. Technical proposal
In order to achieve the above purpose, the technical scheme provided by the invention is as follows:
the invention relates to a rear material supporting pneumatic control system of a high-precision plate shearing machine, which is used for controlling a rear material supporting device to swing up and down so as to realize material supporting and unloading of a plate material to be processed, and comprises an air cylinder, an electromagnetic valve and a two-position electromagnetic valve, wherein a rod cavity of the air cylinder is connected with a port B of the electromagnetic valve, and a rodless cavity of the air cylinder is connected with a port A of the electromagnetic valve through a one-way throttle valve on one hand and connected with a port B of the two-position electromagnetic valve through a pipeline on the other hand; the P port of the electromagnetic valve is connected with an air source through a pressure reducing valve and a quick connector.
Furthermore, an oil atomizer, a filter and a pressure gauge are arranged on a pipeline between the P port of the electromagnetic valve and the quick connector; the electromagnetic valve and the two-position electromagnetic valve are also connected with the muffler.
The pneumatic material supporting mechanism of the high-precision plate shearing machine comprises a rear material supporting device and the pneumatic control system, wherein the rear material supporting device is arranged on the back surface of a workbench of the plate shearing machine, and the pneumatic control system is used for controlling the rear material supporting device to swing up and down so as to realize material supporting and discharging of plates to be processed.
Still further, back hold in palm material device include to hold in the palm work or material rest, bracing piece and support frame, wherein, the one end of bracing piece and support frame all articulates mutually with holding in the palm the work or material rest, the other end of bracing piece and support frame all articulates mutually with the workstation, drives the support work or material rest through the swing of bracing piece and support frame and swings from top to bottom, realizes the support material of waiting to process the sheet material and discharges.
Furthermore, the back of the workbench is provided with a transmission shaft through a bracket, one end of the support frame is fixedly connected with the transmission shaft, the transmission shaft is connected with the air cylinder through a swinging rod, one end of the swinging rod is fixedly connected with the transmission shaft, and the other end of the swinging rod is hinged with a piston rod of the air cylinder.
Further, the distance between the hinge point A between the support frame and the material supporting frame and the end, close to the workbench, of the material supporting frame is 1/3-2/5 of the total length of the material supporting frame, the distance between the hinge point B between the support rod and the material supporting frame and the end, close to the workbench, of the material supporting frame is 2/3-5/7 of the total length of the material supporting frame, and when the material supporting frame swings to the highest position, the included angle between the support frame and the material supporting frame is 43-47 degrees.
Furthermore, the supporting frame is designed into a U-shaped frame structure, and the width of the U-shaped groove on the surface of the supporting frame is matched with the width of the material supporting frame; the surface of the material supporting frame is also provided with pulleys. The back of workstation still is equipped with the slope setting of slope setting and lays the flitch, and the one end of lying the flitch links to each other with the workstation is fixed, and its other end supports through the mount.
Furthermore, the material supporting frame, the supporting frame and the swinging rod are correspondingly arranged in the gaps between the adjacent lying material plates, a cover plate is arranged at the gap between the adjacent lying material plates corresponding to the swinging rod, and one end of the cover plate is connected with the workbench through a hinge.
Furthermore, a notch is processed at the intersection of the baffle plate at the back of the workbench and the material supporting frame, and the size of the notch is matched with that of the material supporting frame; a cover plate is arranged at a gap between adjacent lying plates and corresponding to the swing rod, and one end of the cover plate is connected with the workbench through a hinge.
Thirdly, the pneumatic material supporting method of the high-precision plate shearing machine adopts the pneumatic material supporting mechanism, and the material supporting process is as follows:
a) And (3) material supporting: the pneumatic valve YV3 is powered on, an air source enters from the quick connector and passes through the filter, the pressure reducing valve, the oil atomizer, the pneumatic valve and the one-way throttle valve until the cylinder has no rod cavity, the cylinder piston is pushed to move upwards, and the air in the rod cavity of the cylinder is discharged through the pneumatic valve and the silencer; when the cylinder piston moves up to the maximum stroke, namely the material supporting frame swings to the highest position, the upper surface of the material supporting frame is level with the surface of the workbench, and the material supporting distance d between the material supporting frame and the static knife is 8-12mm;
b) Slow down: the pneumatic valve YV2 is powered on, an air source enters from the quick connector and passes through the filter, the pressure reducing valve, the oil mist device and the pneumatic valve until a rod cavity is formed in the air cylinder to push the air cylinder piston to move downwards, and air in the rodless cavity of the air cylinder is discharged through the one-way throttle valve, the pneumatic valve and the silencer, and the one-way throttle valve can adjust the speed of descending to be high and low;
c) And (3) quick-acting: the pneumatic valves YV4 and YV2 are powered on, an air source enters from the quick connector and passes through the filter, the pressure reducing valve, the oil atomizer and the pneumatic valve until the cylinder is provided with a rod cavity, the piston of the cylinder is pushed to move downwards, and air in the rodless cavity of the cylinder is rapidly discharged through the two-position electromagnetic valve and the silencer; when the cylinder piston descends to the limit position, namely the material supporting frame swings to the lowest position, the upper surface of the material supporting frame is aligned with the lying material plate, and one end, close to the workbench, of the material supporting frame is overlapped with the U-shaped supporting frame.
3. Advantageous effects
Compared with the prior art, the technical scheme provided by the invention has the following remarkable effects:
(1) The invention relates to a rear material supporting pneumatic control system of a high-precision plate shearing machine, which comprises an air cylinder, an electromagnetic valve and a two-position electromagnetic valve, wherein a rod cavity of the air cylinder is connected with a port B of the electromagnetic valve, a rodless cavity of the air cylinder is connected with a port A of the electromagnetic valve on one hand, and is connected with a port B of the two-position electromagnetic valve on the other hand, the descending speed of a rear material supporting device of the plate shearing machine can be effectively controlled through the joint cooperation of the electromagnetic valve (pneumatic valve) and the two-position electromagnetic valve, the plate shearing process is slowly descending, and the plate shearing process is fast descending after the plate shearing is completed, so that the plate can be effectively prevented from being distorted and deformed at a knife edge position, and further the shearing quality and the shearing precision of the plate can be ensured.
(2) The pneumatic material supporting mechanism of the high-precision plate shearing machine comprises a rear material supporting device and a pneumatic control system, and the descending speed of the material supporting device can be effectively controlled by optimally designing the structure of the pneumatic control system, so that the shearing quality and precision of plates can be ensured, and the descending speed of the plates can be adjusted by arranging the one-way throttle valve.
(3) The pneumatic material supporting mechanism of the high-precision plate shearing machine comprises a material supporting frame, a supporting rod and a supporting frame, wherein the material supporting frame is driven to swing up and down by the swinging of the supporting rod and the supporting frame, so that the material supporting and unloading of a plate to be processed can be realized, the material supporting distance between the material supporting frame and a blade can be effectively reduced to 8-12mm by adopting the material supporting structure, and compared with the existing material supporting device, the material supporting gap is greatly reduced, so that the plate can be effectively prevented from sagging due to the action of gravity, the use requirement of plates to be sheared with different lengths is met, and further the shearing quality and precision of the plate can be guaranteed; meanwhile, the leftover materials can be prevented from falling from the gap, so that the material is convenient for workers to take, and the production efficiency is improved.
(4) According to the pneumatic material supporting mechanism of the high-precision plate shearing machine, the transmission shaft is arranged on the back surface of the workbench through the support, power is provided through the driving device, and the whole material supporting device can be driven to synchronously move through the transmission shaft, so that the shearing precision of plates can be ensured, and errors can be reduced.
(5) According to the pneumatic material supporting mechanism of the high-precision plate shearing machine, through strictly controlling the installation positions of the supporting rods, the supporting frames and the transmission shafts, the material supporting device is enabled to keep quadrilateral rotation operation in the whole motion process, so that on one hand, the structural stability of the material supporting device in the whole operation process, particularly in the material supporting and shearing process, is guaranteed, further, the shearing quality and the shearing precision of workpieces are guaranteed, on the other hand, the impact force on the material supporting frame in the shearing process can be reduced, and the deformation of the material supporting frame is prevented.
(6) According to the pneumatic material supporting mechanism of the high-precision plate shearing machine, the supporting frame is of a U-shaped frame structure, the width of the U-shaped groove on the surface of the supporting frame is matched with the width of the material supporting frame, when the material supporting frame swings to the lowest position, the material supporting frame is flush with the upper surface of the lying plate, and the material supporting frame is partially overlapped (collinear) with the U-shaped supporting frame and is clamped in the U-shaped supporting frame, so that gap between adjacent lying plates can be reduced, the insertion of plates into the gaps is prevented, meanwhile, space is saved, and the space structure is simpler.
(7) According to the pneumatic material supporting mechanism of the high-precision plate shearing machine, the notch is formed in the intersection of the baffle plate on the back of the workbench and the material supporting frame, when the material supporting frame swings to the highest position and is level to the surface of the workbench, the baffle plate is prevented from being rubbed with the material supporting frame when the baffle plate is convenient to move back and forth by the size of the baffle plate due to the arrangement of the notch on the baffle plate. According to the invention, the gap between the adjacent lying plates, which corresponds to the swing rods, is provided with the cover plate, one end of the cover plate is connected with the workbench through the hinge, when the swing rods extend out, the swing rod cover plate is propped open, and when the swing rods fall down, the swing rod cover plate covers the gap between the lying plates due to self weight, so that cut small plates can be effectively prevented from falling into the gap between the lying plates, and the plate is taken out in a troublesome manner.
(8) According to the pneumatic material supporting mechanism of the high-precision plate shearing machine, the nylon pulleys are arranged on the material supporting frame, so that on one hand, a plate can be conveniently moved easily on the material supporting frame, the abrasion of the surface of the sheared plate is effectively protected, the working efficiency is improved, and the next shearing of the plate is facilitated; on the other hand, the cut plate can be effectively prevented from being inserted into the notch of the lying plate.
(9) The pneumatic material supporting method of the high-precision plate shearing machine comprises the processes of material supporting, slow descending and fast descending, and the descending speed of the material supporting frame is effectively controlled, so that the plate material is slowly descended in the plate material shearing process, and the plate material is quickly descended after being sheared, thereby ensuring the shearing quality of the plate material, preventing the plate material from bending deformation and being beneficial to ensuring the machining efficiency.
Drawings
Fig. 1 is a schematic front view of a high-precision plate shearing machine according to the present invention;
FIG. 2 is a schematic side view of a high precision plate shearing machine according to the present invention;
fig. 3 is a schematic structural view of a rear material supporting device of the high-precision plate shearing machine;
fig. 4 is a schematic view of a supporting (lifting) state of the rear supporting device according to the present invention;
FIG. 5 is a schematic view showing a discharging (falling) state of the rear stock device of the present invention;
FIG. 6 is a schematic diagram of a comparative structure of the rear supporting device when the rear supporting device is lifted and dropped;
fig. 7 is a schematic structural view of a pneumatic control system of the plate shearing machine of the present invention.
Reference numerals in the schematic drawings illustrate:
1. a work table; 201. a movable knife; 201. a static knife; 3. the plate to be processed; 4. a striker plate; 5. a material supporting frame; 6. a pulley; 7. a support rod; 8. a support frame; 9. a cover plate; 10. a hinge; 11. a transmission shaft; 12. swing rod; 13. a cylinder; 14. a material plate is laid down; 15. a cylinder bracket; 16. a fixing frame; 17. a quick connector; 18. a filter; 19. a pressure reducing valve; 20. a pressure gauge; 21. an oil mist device; 22. a muffler; 23. an electromagnetic valve; 24. a one-way throttle valve; 25. a two-position electromagnetic valve; 26. a material pressing cylinder; 27. a hydraulic cylinder; 28. an operation box; 29. an electric appliance box; 30. front supporting materials; 31. conveying balls; 32. side baffles; 33. an upper tool rest; 34. an oil tank; 35. a gap adjusting mechanism; 36. a front panel.
Detailed Description
For a further understanding of the present invention, the present invention will now be described in detail with reference to the drawings and specific examples.
Example 1
As shown in fig. 7, a pneumatic control system for rear supporting material of a high-precision plate shearing machine in this embodiment is used for controlling the up-and-down swing of a rear supporting material device so as to realize the supporting and discharging of a plate material 3 to be processed. The pneumatic control system comprises a cylinder 13, an electromagnetic valve 23 and a two-position electromagnetic valve 25, wherein a rod cavity of the cylinder 13 is connected with a port B of the electromagnetic valve 23, and a rodless cavity of the cylinder is connected with a port A of the electromagnetic valve 23 through a one-way throttle valve 24 on one hand and connected with a port B of the two-position electromagnetic valve 25 through a pipeline on the other hand; the P port of the electromagnetic valve 23 is connected with an air source through the pressure reducing valve 19 and the quick connector 17.
Example 2
The rear material supporting pneumatic control system of the high-precision plate shearing machine of the embodiment is basically the same as that of the embodiment 1 in structure, and mainly differs in that: an oil atomizer 21, a filter 18 and a pressure gauge 20 are also arranged on a pipeline between the P port of the electromagnetic valve 23 and the quick connector 17; the electromagnetic valve 23 and the two-position electromagnetic valve 25 are connected with the muffler 22.
Example 3
The pneumatic material supporting mechanism of the high-precision plate shearing machine comprises a rear material supporting device and a pneumatic control system, wherein the rear material supporting device is arranged on the back surface of a workbench 1 of the plate shearing machine, and the pneumatic control system is used for controlling the rear material supporting device to swing up and down so as to realize material supporting and discharging of a plate material 3 to be processed, and the pneumatic material supporting mechanism is similar to the embodiment 2 in structure.
Example 4
The pneumatic material supporting mechanism of the high-precision plate shearing machine of the embodiment is basically the same as that of the embodiment 3 in structure, and the difference is mainly that: referring to fig. 3-6, the rear material supporting device of the embodiment comprises a material supporting frame 5, a supporting rod 7 and a supporting frame 8, wherein one ends of the supporting rod 7 and the supporting frame 8 are hinged to the material supporting frame 5, the other ends of the supporting rod 7 and the supporting frame 8 are hinged to the workbench 1, and the supporting frame 5 is driven to swing up and down through swinging of the supporting rod 7 and the supporting frame 8, so that material supporting and material discharging of a plate material 3 to be processed are achieved. The material supporting device can set the length of the material supporting frame 5 according to the distance between the rear baffle plate and the workbench, so that the material supporting distance between the material supporting frame 5 and the blade can be effectively reduced to 8-12mm, and compared with the existing material supporting device, the material supporting gap is greatly reduced, so that the sagging of the plates due to the action of gravity can be effectively prevented, the use requirements of the plates to be sheared with different lengths are met, and further the shearing quality and precision of the plates are guaranteed; meanwhile, the leftover materials can be prevented from falling from the gap, so that the material is convenient for workers to take, and the production efficiency is improved.
Example 5
Referring to fig. 3 to 6, the pneumatic material supporting mechanism of the high-precision plate shearing machine of the present embodiment is basically the same as that of embodiment 4, and the difference is that: the back of workstation 1 is through support mounting has transmission shaft 11, and the one end and the transmission shaft 11 of support frame 8 are fixed to be linked to each other, and above-mentioned transmission shaft 11 passes through pendulum rod 12 and links to each other with cylinder 13, and wherein pendulum rod 12's one end links to each other with transmission shaft 11 is fixed, and its other end articulates with the piston rod of cylinder 13 mutually, and cylinder 13 cylinder body articulates in workstation 1 through cylinder support 15. The swing rod 12 and the transmission shaft 11 are driven to rotate through the extension and contraction of the piston rod of the air cylinder 13, so that the supporting frame 8 is driven to rotate, the material supporting frame 5 is driven to swing up and down under the combined action of the supporting frame 8 and the supporting rod 7, and then the plate is supported and unloaded. The whole material supporting device can be driven to synchronously move through the action of the transmission shaft 11, so that the shearing precision of the plate can be ensured, and the error can be reduced.
The support frame 8 and the support rod 7 are key components of the material supporting frame 5 in the whole material supporting operation process, and the selection of the installation position is important. In this embodiment, the hinge point B of the supporting rod 7 and the material supporting frame 5, the hinge point D of the supporting rod and the workbench 1, the hinge point a of the supporting frame 8 and the material supporting frame 5 (pin shaft connection point), and the hinge point C of the supporting frame and the workbench 1 (rotation center of the transmission shaft) are all surrounded to form a quadrilateral, and the material supporting device always keeps a quadrilateral movement form in the whole working process from supporting to discharging, namely, the four A, B, C, D points all around to form a quadrilateral. In this embodiment, the distance between the hinge point a between the support frame 8 and the material supporting frame 5 and the end of the material supporting frame 5 close to the working table 1 is 2/5 of the total length of the material supporting frame 5, the distance between the hinge point B between the support rod 7 and the material supporting frame 5 and the end of the material supporting frame 5 close to the working table 1 is 5/7 of the total length of the material supporting frame 5, and when the material supporting frame 5 swings to the highest position, the included angle between the support frame 8 and the material supporting frame 5 is 47 °, the hinge point D between the support rod 7 and the working table is located below the point C, and the specific position is determined according to the running arc of A, B two points.
On the basis of effectively reducing the material supporting distance d between the material supporting frame 5 and the blade, how to prevent the material supporting frame 5 from shaking relative to the supporting frame 8 and the supporting rod 7 in the whole material supporting process and ensure that the structural stability of the material supporting device has important significance on ensuring the shearing precision and quality of the plates are also the key difficulty of the invention. Meanwhile, when the plate is sheared, the blade shearing force is large, so that the material supporting frame 5 is easy to impact and is bent and deformed, and the machining precision of the plate is affected. The inventor carries out the optimal control to the position of support frame 8 and bracing piece 7 through a large amount of experiments to on the one hand can make hold in the palm the material device and all keep quadrilateral rotation operation in whole motion process, guarantee to hold in the palm the material device in whole operation process, especially hold in the palm the material with the structure steadiness when shearing, and then be favorable to guaranteeing the shearing quality and the precision of work piece, on the other hand can also reduce the impact force to holding in the palm work piece frame 5 when shearing, prevent to hold in the palm work piece frame 5 to take place the deformation, thereby further guarantee the shearing quality.
In addition, when the existing material supporting pneumatic control system is adopted, when the plate shearing machine does not shear the plate, the material supporting frame 5 swings, the sheared plate is easy to droop, the plate is easy to twist and deform at the knife edge to influence the shearing quality of the plate, and the structure of the rear material supporting pneumatic control system is further optimized, so that the descending speed of the material supporting frame 5 can be effectively controlled, bending deformation can be effectively prevented in the shearing process of the plate, and the shearing quality of the plate is guaranteed.
Example 6
With reference to the accompanying drawings, the pneumatic material supporting mechanism of the high-precision plate shearing machine of the embodiment has a structure basically the same as that of embodiment 5, and is characterized in that: in this embodiment, an inclined material plate 14 is disposed on the back of the workbench 1, one end of the material plate 14 is fixedly connected with the workbench 1, and the other end is supported by a fixing frame 16. Gaps exist between the adjacent lying plates 14, and the material supporting frame 5, the supporting frame 8 and the swing rod 12 are correspondingly arranged in the gaps between the adjacent lying plates 14.
In this embodiment, the supporting frame 8 is designed as a U-shaped frame structure, and the width of the U-shaped groove on the surface of the supporting frame is matched with the width of the material supporting frame 5. When the material supporting frame 5 swings to the highest position, the upper surface of the material supporting frame is level with the surface of the workbench 1, and the material supporting distance d between the material supporting frame 5 and the static knife 201 is 8-12mm; when the material supporting frame 5 swings to the lowest position, the upper surface of the material supporting frame 5 is aligned with the lying material plate 14, and one end of the material supporting frame 5 close to the workbench 1 is overlapped with the U-shaped supporting frame 8 (clamped in the U-shaped groove of the supporting frame 8), so that gap between adjacent lying material plates can be reduced, the insertion of the plates into the gaps can be prevented, meanwhile, space can be saved, and the space structure can be more simple. The sheared plate slides down along the material supporting frame 5 and the lying plate 14 for unloading. The nylon pulleys 6 are further arranged on the surface of the material supporting frame 5, so that on one hand, the plates can be conveniently moved easily on the material supporting frame 5, the abrasion of the surfaces of the sheared plates is effectively protected, the working efficiency is improved, and the next shearing of the plates is facilitated; on the other hand, the cut plate can be effectively prevented from being inserted into the notch of the lying plate 14.
In this embodiment, the distance between the point a and the end of the material supporting frame 5 near the workbench 1 is 9/25 of the total length of the material supporting frame 5, the distance between the point b and the end of the material supporting frame 5 near the workbench 1 is 7/10 of the total length of the material supporting frame 5, and the included angle between the supporting frame 8 and the material supporting frame 5 is 43 ° when the material supporting frame 5 swings to the highest position.
Example 7
With reference to the accompanying drawings, the pneumatic material supporting mechanism of the high-precision plate shearing machine of the embodiment has a structure basically the same as that of embodiment 6, and is characterized in that: a notch is processed at the intersection of the baffle plate 4 on the back of the workbench 1 and the material supporting frame 5, and the size of the notch is matched with the size of the material supporting frame 5; when the material supporting frame 5 swings to the highest position and is level with the surface of the workbench 1, the baffle plate is convenient to move back and forth by the arrangement of the notch on the material blocking plate, and the baffle plate is prevented from being rubbed with the material supporting frame 5. The gap between the adjacent lying plates 14 corresponding to the swinging rods 12 is provided with the cover plate 9, one end of the cover plate 9 is connected with the workbench 1 through the hinge 10, when the swinging rods extend out, the swinging rod cover plate 9 is propped open, and when the swinging rods fall down, the swinging rod cover plate 9 covers the gap between the lying plates 14 due to self weight, so that cut small plates can be effectively prevented from falling into the gap between the lying plates, and the plate taking out is troublesome. In this embodiment, the distance between the point a and the end of the supporting frame 5, which is close to the working table 1, is 1/3 of the total length of the supporting frame 5, the distance between the point b and the end of the supporting frame 5, which is close to the working table 1, is 2/3 of the total length of the supporting frame 5, and the included angle between the supporting frame 8 and the supporting frame 5 is 45 when the supporting frame 5 swings to the highest position.
The pneumatic material supporting mechanism of the embodiment is adopted to support the plate material 3 to be processed, and the specific process is as follows:
step one, a material supporting state
The piston rod of the air cylinder 13 stretches out, the jacking swing rod 12 rotates upwards around the point C to jack the cover plate 9, the swing rod 12 drives the transmission shaft 11 to rotate, the support frame 8 is driven to rotate upwards around the point C, the support rod 7 rotates upwards around the point D, and under the combined action of the support frame 8 and the support rod 7, the material supporting frame 5 is supported to be flush with the upper surface of the workbench 1 and keeps a stable state, so that the plate 3 to be processed is supported flatly;
step two, shearing state
Under the combined action of the pressing cylinder and the material supporting frame 5, the plate is sheared through the cooperation of the movable cutter 201 and the static cutter 202, along with the shearing, the piston rod of the air cylinder 13 is continuously shortened, so that the supporting frame 8 gradually rotates downwards around the point C, and the supporting rod 7 gradually rotates downwards around the point D, thereby driving the material supporting frame 5 and the plate 3 to be processed to gradually rotate downwards so as to finish the shearing of the plate;
step three, unloading state
After shearing is completed, the piston rod of the air cylinder 13 is shortened to the shortest rapidly, the material supporting frame 5 swings to the lowest position and is flush with the material lying plate 14, at the moment, the material supporting frame 5 coincides with the supporting frame 8, one end, close to the workbench 1, of the material supporting frame is clamped in the U-shaped groove of the supporting frame 8, the cover plate 9 rotates downwards due to self weight and covers a gap between the corresponding material lying plates 14, and sheared plates slide down along the material lying plates and the material supporting frame 5 to be discharged.
Example 8
According to the pneumatic material supporting method of the high-precision plate shearing machine, the pneumatic material supporting mechanism of the embodiment 7 is adopted, when a plate material is sheared, the material supporting frame 5 slowly descends along with the upper tool rest, after the plate material is sheared, the material supporting frame 5 rapidly descends to the bottom, the sheared plate material slides down through the lying plate, and therefore the plate material can be effectively prevented from being distorted and deformed at a knife edge position, and shearing quality of the plate material is further guaranteed. The concrete working process of the rear material supporting device is as follows:
a) And (3) material supporting: the pneumatic valve YV3 is powered on, an air source enters from the quick connector 17, passes through the filter 18, the pressure reducing valve 19, the oil atomizer 21, the pneumatic valve 23 and the one-way throttle valve 24 until the cylinder 13 has no rod cavity (the P cavity of the two-position electromagnetic valve is not communicated), pushes the piston of the cylinder 13 to move upwards, and the air in the rod cavity of the cylinder 13 is discharged through the pneumatic valve 23 and the silencer 22;
b) Slow down: the pneumatic valve YV2 is powered on, an air source enters from the quick connector 17, passes through the filter 18, the pressure reducing valve 19, the oil atomizer 21 and the pneumatic valve 23 until the cylinder 13 is provided with a rod cavity, pushes the piston of the cylinder 13 to move downwards, and gas in the rodless cavity of the cylinder 13 is discharged through the one-way throttle valve 24, the pneumatic valve 23 and the silencer 22, wherein the one-way throttle valve 24 can adjust the speed of descending to be fast and slow;
c) And (3) quick-acting: the pneumatic valves YV4 and YV2 are powered on, an air source enters from the quick connector 17, passes through the filter 18, the pressure reducing valve 19, the oil mist device 21 and the pneumatic valve 23 until the cylinder 13 has a rod cavity, pushes the piston of the cylinder 13 to move downwards, and air in the rodless cavity of the cylinder 13 is quickly discharged through the two-position electromagnetic valve 25 and the silencer 22.
Example 9
Referring to fig. 1-7, the high precision plate shearing machine of the present embodiment includes a plate shearing machine frame composed of two side wall boards, a front panel 36 and a workbench 1, a plate shearing mechanism and a material supporting mechanism, wherein the plate shearing mechanism includes an upper tool rest 33, a movable tool 201 installed at the bottom end of the upper tool rest 33, and a static tool 202 installed above the workbench 1; the bottom of the front panel 36 is provided with pressing cylinders 26 which are uniformly and alternately distributed along the width direction of the plate shearing machine; the structure of the material supporting mechanism is the same as that of the embodiment 7.
The front panel 36 is provided with an operation box 28, the frame of the plate shearing machine is provided with an oil tank 34, a hydraulic valve group and an electric box 29, the electric box 29 provides power for a machine tool, and the operation box 28 is used for setting a working program of the machine tool. The hydraulic oil in the oil tank 34 is supplied to the hydraulic cylinder 27 and the material pressing cylinder 26 through the work of the electromagnetic valve group, so that the hydraulic cylinder 27 and the material pressing cylinder 26 work, the material pressing cylinder 26 works to press a workpiece, and the hydraulic cylinder 27 drives the upper tool rest 33 to swing downwards to cut the workpiece by the upper blade and the lower blade. When the electromagnetic valve group stops working, the material pressing cylinder returns through the acting force of the spring, the gas pressure in the returning cylinder drives the upper tool rest to swing upwards, and meanwhile hydraulic oil in the hydraulic cylinder is drained back to the oil tank, so that one-time shearing work is completed. The upper tool rest 33 is also connected with a gap adjusting mechanism 35, so that the distance between the movable and the static blades can be adjusted.
Example 10
Referring to the drawings, the structure of the high-precision plate shearing machine of this embodiment is basically the same as that of embodiment 9, and the difference is that: in this embodiment, the feeding end of the workbench 1 is further provided with a front supporting material 30, the front supporting material 30 is provided with a conveying ball 31, and meanwhile, two sides of the feeding end of the workbench 1 are further provided with side baffles 32, so that a plate to be processed can be accurately positioned.
The invention and its embodiments have been described above by way of illustration and not limitation, and the invention is illustrated in the accompanying drawings and described in the drawings in which the actual structure is not limited thereto. Therefore, if one of ordinary skill in the art is informed by this disclosure, the structural mode and the embodiments similar to the technical scheme are not creatively designed without departing from the gist of the present invention.
Claims (6)
1. The pneumatic material supporting method of the high-precision plate shearing machine is characterized by comprising a pneumatic material supporting mechanism, wherein the pneumatic material supporting mechanism comprises a rear material supporting device and a pneumatic control system, the rear material supporting device is arranged on the back surface of a workbench (1) of the plate shearing machine and comprises a material supporting frame (5), a supporting rod (7) and a supporting frame (8), one ends of the supporting rod (7) and the supporting frame (8) are hinged with the material supporting frame (5), the other ends of the supporting rod (7) and the supporting frame (8) are hinged with the workbench (1), and the supporting frame (5) is driven to swing up and down through the swinging of the supporting rod (7) and the supporting frame (8), so that the material supporting and the unloading of a plate (3) to be processed are realized; the pneumatic control system is used for controlling the back material supporting device to swing up and down so as to realize the material supporting and discharging of the plate material (3) to be processed; the pneumatic control system comprises a cylinder (13), an electromagnetic valve (23) and a two-position electromagnetic valve (25), wherein a rod cavity of the cylinder (13) is connected with a port B of the electromagnetic valve (23), and a rodless cavity of the pneumatic control system is connected with a port A of the electromagnetic valve (23) through a one-way throttle valve (24) on one hand and connected with a port B of the two-position electromagnetic valve (25) through a pipeline on the other hand; the P port of the electromagnetic valve (23) is connected with an air source through a pressure reducing valve (19) and a quick connector (17); the specific material supporting process is as follows:
a) And (3) material supporting: the electromagnet coil YV3 at one side of the electromagnetic valve (23) is powered, an air source enters from the quick connector (17), passes through the filter (18), the pressure reducing valve (19), the oil atomizer (21), the electromagnetic valve (23) and the one-way throttle valve (24) until the cylinder (13) has no rod cavity, pushes the piston of the cylinder (13) to move upwards, and the air in the rod cavity of the cylinder (13) is discharged through the electromagnetic valve (23) and the silencer (22); when the piston of the air cylinder (13) ascends to the maximum stroke, namely the material supporting frame (5) swings to the highest position, the upper surface of the material supporting frame (5) is flush with the surface of the workbench (1), and the material supporting distance d between the material supporting frame (5) and the static knife (201) is 8-12mm;
b) Slow down: the electromagnetic coil YV2 at the other side of the electromagnetic valve (23) is powered, an air source enters from the quick connector (17), passes through the filter (18), the pressure reducing valve (19), the oil atomizer (21) and the electromagnetic valve (23) until the air cylinder (13) is provided with a rod cavity, pushes the piston of the air cylinder (13) to move downwards, and air in the rodless cavity of the air cylinder (13) is discharged through the one-way throttle valve (24), the electromagnetic valve (23) and the silencer (22), wherein the one-way throttle valve (24) can adjust the speed of descending;
c) And (3) quick-acting: the electromagnet coil YV4 of the two-position electromagnetic valve (25) and the electromagnet coil YV2 of the electromagnetic valve (23) are powered, an air source enters from the quick connector (17) and passes through the filter (18), the pressure reducing valve (19), the oil mist device (21) and the electromagnetic valve (23) until the cylinder (13) is provided with a rod cavity, the piston of the cylinder (13) is pushed to move downwards, and the air in the rodless cavity of the cylinder (13) is rapidly discharged through the two-position electromagnetic valve (25) and the silencer (22); when the piston of the air cylinder (13) descends to the limit position, namely the material supporting frame (5) swings to the lowest position, the upper surface of the material supporting frame (5) is aligned with the material lying plate (14), and one end, close to the workbench (1), of the material supporting frame (5) is overlapped with the U-shaped supporting frame (8).
2. The pneumatic material supporting method of the high-precision plate shearing machine according to claim 1, wherein the pneumatic material supporting method is characterized in that: an oil atomizer (21), a filter (18) and a pressure gauge (20) are further arranged on a pipeline between the P port of the electromagnetic valve (23) and the quick connector (17); the electromagnetic valve (23) and the two-position electromagnetic valve (25) are also connected with the muffler (22).
3. The pneumatic material supporting method of the high-precision plate shearing machine according to claim 1, wherein the pneumatic material supporting method is characterized in that: the back of workstation (1) is through support mounting has transmission shaft (11), and the one end and the transmission shaft (11) of support frame (8) are fixed to be linked to each other, transmission shaft (11) link to each other with cylinder (13) through pendulum rod (12), wherein the one end and the transmission shaft (11) of pendulum rod (12) are fixed to be linked to each other, and its other end is articulated with the piston rod of cylinder (13).
4. A pneumatic material supporting method of a high-precision plate shearing machine according to claim 1 or 3, characterized in that: the distance between the hinge point A between the support frame (8) and the material supporting frame (5) and one end of the material supporting frame (5) close to the workbench (1) is 1/3-2/5 of the total length of the material supporting frame (5), the distance between the hinge point B between the support rod (7) and the material supporting frame (5) and one end of the material supporting frame (5) close to the workbench (1) is 2/3-5/7 of the total length of the material supporting frame (5), and the included angle between the support frame (8) and the material supporting frame (5) is 43-47 degrees when the material supporting frame (5) swings to the highest position.
5. A pneumatic material supporting method of a high-precision plate shearing machine according to claim 3, characterized in that: the supporting frame (8) is designed into a U-shaped frame structure, and the width of a U-shaped groove on the surface of the supporting frame is matched with the width of the material supporting frame (5); the back of the workbench (1) is also provided with a lying plate (14) which is obliquely arranged, one end of the lying plate (14) is fixedly connected with the workbench (1), and the other end of the lying plate is supported by a fixing frame (16).
6. The pneumatic material supporting method of the high-precision plate shearing machine according to claim 5, wherein the pneumatic material supporting method is characterized in that: the material supporting frame (5), the supporting frame (8) and the swinging rod (12) are correspondingly arranged in the gaps between the adjacent material plates (14), the cover plate (9) is further arranged at the gaps between the adjacent material plates (14) and corresponding to the swinging rod (12), and one end of the cover plate (9) is connected with the workbench (1) through the hinge (10).
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| CN108747332A (en) * | 2018-08-14 | 2018-11-06 | 江苏亨通光网科技有限公司 | Pneumatic type automates the device that screws |
| TWI728747B (en) * | 2020-03-13 | 2021-05-21 | 游振隆 | Inclined feeding pipe cutting machine |
| CN111451565B (en) * | 2020-03-31 | 2021-04-27 | 浙江华顺金属材料有限公司 | Automatic blanking output equipment of gate type plate shearing machine |
| CN113291358B (en) * | 2021-07-15 | 2022-12-23 | 上海金棋建筑工程设备有限公司 | But building site is with automatic discharge's concrete wheel barrow |
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