CN104551208A - Gate type plate shearing machine - Google Patents
Gate type plate shearing machine Download PDFInfo
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- CN104551208A CN104551208A CN201510015598.6A CN201510015598A CN104551208A CN 104551208 A CN104551208 A CN 104551208A CN 201510015598 A CN201510015598 A CN 201510015598A CN 104551208 A CN104551208 A CN 104551208A
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Abstract
The invention relates to a gate type plate shearing machine. The gate type plate shearing machine comprises a lathe bed, a material supporting mechanism and a shearing mechanism, wherein the left end of a tool post is connected with the lower end of a piston rod of a left oil cylinder, the right end of the tool post is connected with the lower end of a piston rod of a right oil cylinder, cylinder blocks of the left oil cylinder and the right oil cylinder are respectively fixed on the lathe bed, the lower ends of the piston rods of the left oil cylinder and the right oil cylinder are respectively screwed with connection rods through threads, a connection rod hole is formed in the lower end of each connection rod, the axis of each connection rod hole is vertical to the axis of each piston rod and vertical to a plane where the tool post is located, a ball bearing is installed in each connection rod hole, sliding shafts are respectively installed in inner holes of the ball bearings, the sliding shafts, the ball bearings and the lower ends of the connection rods are all located in installation holes of the tool post, two ends of each sliding shaft are respectively supported in two sliding holes of a sliding shaft seat, flange covers respectively stretched out towards the periphery are arranged on the outer end faces of the sliding shaft seats, and the flange covers are respectively connected onto the tool post. The gate type plate shearing machine can achieve adjustments of intervals of tool edges and shearing angles of the tool post, and transmits torque of the oil cylinders.
Description
Technical field
The present invention relates to a kind of guillotine shear, particularly relate to a kind of lock formula guillotine shear, belong to machine tool technology field.
Background technique
Lock formula guillotine shear is the equipment shearing plate, tradition lock formula guillotine shear comprises lathe bed, left oil cylinder, right oil cylinder and knife rest, the left end of knife rest is connected to the piston-rod lower end of left oil cylinder, the right-hand member of knife rest is connected to the piston-rod lower end of right oil cylinder, and the cylinder body of left oil cylinder and right oil cylinder is separately fixed at left side and the right side of lathe bed.The upper end of stud is connected with the piston rod of oil cylinder, and the lower end of stud penetrates in the mounting hole of knife rest; Spherical washer and ball bearing are installed on the upper and lower of knife rest mounting hole respectively, and butterfly spring is installed on the below of ball bearing, and nut and locking nut are arranged on the below of butterfly spring and fastening.Above structure can realize leaning forward of knife rest and hypsokinesis and left and right and move up and down, and completes the adjustment of the knife rest edge of a knife and worktable knife edge clearance and the adjustment of knife rest angle of shear size.
In actual use, due to the huge power vibrations in the to-and-fro motion of knife rest and shear history, the threaded connection place of oil cylinder and stud easily produces loosening this device, causes knife rest to come off.Also due to fuselage machining error, when easily causing stud to penetrate in the mounting hole of knife rest, depart from central position, cause fractureing during the adjustment angle of shear stud.Also spherical washer, ball bearing extremely can be caused cannot to move generation extraordinary noise due to butterfly spring.
Summary of the invention
The object of the invention is to, overcome problems of the prior art, provide a kind of lock formula guillotine shear, structure is simple, easy to manufacture, quick for installation, runs more reliable.
For solving above technical problem, a kind of lock formula guillotine shear of the present invention, comprise lathe bed, material carrying mechanism and cutting mechanism, described cutting mechanism comprises left oil cylinder, right oil cylinder and knife rest, the left end of described knife rest is connected to the piston-rod lower end of left oil cylinder, the right-hand member of described knife rest is connected to the piston-rod lower end of right oil cylinder, the cylinder body of described left oil cylinder and right oil cylinder is separately fixed on described lathe bed, and described left oil cylinder and right oil cylinder are all controlled by hydraulic system, the piston-rod lower end of described left oil cylinder and right oil cylinder is connected with connecting rod respectively by screw thread, the lower end of described connecting rod is respectively equipped with tie rod holes, the axes normal of described tie rod holes in described piston rod axis and perpendicular to the plane at described knife rest place, ball bearing is separately installed with in described tie rod holes, sliding axle is separately installed with in the endoporus of described ball bearing, the lower end of described sliding axle, ball bearing and described connecting rod is all arranged in the mounting hole of described knife rest, the two ends of described sliding axle are supported in the slide opening of sliding shaft base respectively, the exterior edge face of described sliding shaft base is respectively equipped with the blind flange stretched out to periphery, and described blind flange is connected on described knife rest.
Relative to prior art, the present invention achieves following beneficial effect: this cutting mechanism can complete the adjustment of knife edge clearance, adjustment the leaning forward and hypsokinesis of knife rest, produces gap relative to the static worktable edge of a knife, and the aligning of ball bearing can be leaned on to be used for realization.This device can also adjust the shearing inclination of knife rest, with left oil cylinder for immovable point, right oil cylinder is turning point, hydraulic system promotes the upper and lower vertical motion of piston rod of right oil cylinder, the right-hand member of knife rest is produced around left end rotate, thus changing the angle of knife rest, the displacement that on the right side of knife rest, joint produces relies on sliding axle, the cooperation of sliding shaft base realizes.This device can relay cylinder moment simultaneously, meets the shearing requirement of lock formula guillotine shear to different-thickness plate.
As improvement of the present invention, the two ends of described sliding axle are respectively flat and upper and lower end face is parallel to each other; The upper lower wall of the upper and lower end face at described sliding axle two ends and the slide opening of described sliding shaft base fits, and leaves gap between the left and right cambered surface at described sliding axle two ends and the slide opening of described sliding shaft base; Gap is left between the two ends of described sliding axle and the slide opening diapire of described sliding shaft base.Being limited up and down of the flat axle head of sliding axle, can slide in left and right, axially also can slide, coordinate with ball bearing, can adapt to displacement when adjusting knife rest angle and knife edge clearance.
As improvement of the present invention, the upper end of described connecting rod is provided with the vertical groove cut off by box thread, and the both sides that lock screw screws in described vertical groove make the box thread of described connecting rod hold tightly on the male thread of described piston-rod lower end.Unclamp lock screw, the height that spins of connecting rod and piston-rod lower end can be adjusted, spin after putting in place, tighten lock screw and the box thread of connecting rod is held tightly on the male thread of piston rod, the relative position between connecting rod and piston rod is fixed.
As improvement of the present invention, in described hydraulic system, the cavity of resorption of left oil cylinder (2) is connected with the epicoele of right oil cylinder (3), oil pump (B1) outlet is connected with the import of the import of the import of binder cylinder (11), the import of the first cartridge valve (C1) and hydraulic control mouth, the second cartridge valve (C2) and hydraulic control mouth, Solenoid ball valve (YA1) respectively, the outlet of Solenoid ball valve (YA1) is connected with the epicoele of right oil cylinder (3), and oil pump (B1) also exports manually stop valve (10) and is connected with the cavity of resorption of accumulator (AC) and right oil cylinder (3); The outlet of the first cartridge valve (C1) is connected with fuel tank, and the hydraulic control mouth of the first cartridge valve (C1) is also connected with fuel tank by the first solenoid directional control valve (YV1); The outlet of the second cartridge valve (C2) is connected with the import of one-way valve (D1), and the outlet of one-way valve (D1) is connected with the epicoele of left oil cylinder (2); The hydraulic control mouth of the second cartridge valve (C2) is also connected with the import of the second relief valve (F2) by the second solenoid directional control valve (YV2), and the outlet of the second relief valve (F2) is connected with fuel tank; The hydraulic control mouth of the 3rd cartridge valve (C3) is also connected with the epicoele of left oil cylinder (2) by the 3rd solenoid directional control valve (YV3); Solenoid ball valve (YA1) is 2/2-way Solenoid ball valve, and power-off is closed condition.(1) be on state during the first solenoid directional control valve YV1 power-off, after oil pump B1 starts, because the hydraulic control mouth of the first cartridge valve C1 is communicated with fuel tank by the first solenoid directional control valve YV1, first cartridge valve C1 opens, the fluid that oil pump B1 exports gets back to fuel tank 12 through the first cartridge valve C1, and the outlet of oil pump B1 does not build pressure.When the coil of the first solenoid directional control valve YV1 obtain electric after, the first solenoid directional control valve YV1 closes, and the hydraulic control mouth of the first cartridge valve C1 is built pressure and closed by the first cartridge valve C1, and pressure is built in the outlet of oil pump B1.(3) shear: the second cartridge valve C2 plays the effect of sequence valve, when shearing plate, the fluid that oil pump B1 exports enters binder cylinder 11, and plate first compresses by binder cylinder 11; Hydraulic control mouth and the import of the second cartridge valve C2 build pressure simultaneously, and make the second cartridge valve C2 be initially in closed condition, the second relief valve F2 is initially also in closed condition; When oil pressure is increased to the setting value reaching the second relief valve F2 gradually, second relief valve F2 opens, the hydraulic control mouth of the second cartridge valve C2 passes through the second solenoid directional control valve YV2 and the second relief valve F2 to tank drainback, second cartridge valve C2 is opened, fluid enters the epicoele of left oil cylinder 2 through one-way valve D1, the fluid of left oil cylinder 2 cavity of resorption enters the epicoele of right oil cylinder 3, the fluid of right oil cylinder 3 cavity of resorption is pressed into accumulator AC, because left oil cylinder 2 and right oil cylinder 3 are series loop, two oil cylinders synchronously drive knife rest 4 descending, shear.During shearing, the 3rd cartridge valve C3 is in closed condition, and Solenoid ball valve YA1 power-off is in closed condition.(4) return: shear after stopping, the coil losing electricity of the first solenoid directional control valve YV1, the fluid that oil pump B1 exports gets back to fuel tank 12, system unload through the first cartridge valve C1; The coil of the 3rd solenoid directional control valve YV3 obtains electric simultaneously, the hydraulic control mouth decompression of the 3rd cartridge valve C3 makes the 3rd cartridge valve C3 open, the fluid of left oil cylinder 2 epicoele through the 3rd cartridge valve C3 oil sump tank, the cavity of resorption oiling of accumulator AC release pressure oil cylinder 3 to the right, the piston rod promoting right oil cylinder 3 is up; Now Solenoid ball valve YA1 is still in closed condition, and the fluid of right oil cylinder 3 epicoele enters the cavity of resorption of left oil cylinder 2, and the piston rod of left oil cylinder 2 and right oil cylinder 3 synchronously rises, and band movable knife rack 4 return gets back to top dead center.(5) increase the angle of shear: hand stop valve 10 is in closed condition, the equal dead electricity of coil of the coil of the first solenoid directional control valve YV1, the coil of the second solenoid directional control valve YV2 and the 3rd solenoid directional control valve YV3, Solenoid ball valve YA1 obtains electric opening simultaneously; First solenoid directional control valve YV1 dead electricity makes the outlet of oil pump B1 not build pressure, and Solenoid ball valve YA1 obtains electric opening makes the epicoele of right oil cylinder 3 and the outlet of oil pump B1 connect; The coil of the second solenoid directional control valve YV2 and the coil losing electricity of the 3rd solenoid directional control valve YV3, the fluid pipeline of left oil cylinder 2 epicoele is cut off by one-way valve D1 and the 3rd cartridge valve C3, and the piston rod of left oil cylinder 2 maintains static, and makes the left end of knife rest 4 motionless.The now cavity of resorption oiling of accumulator AC release pressure oil cylinder 3 to the right, the piston rod promoting right oil cylinder 3 is up, and the epicoele of right oil cylinder 3 is by Solenoid ball valve YA1 oil return, and the right-hand member of band movable knife rack 4 is up, and the angle of shear is increased.(6) reduce the angle of shear: the coil of the second solenoid directional control valve YV2 and the coil losing electricity of the 3rd solenoid directional control valve YV3, the fluid pipeline of left oil cylinder 2 epicoele is cut off by one-way valve D1 and the 3rd cartridge valve C3, the piston rod of left oil cylinder 2 maintains static, and makes the left end of knife rest 4 motionless.The coil of the first solenoid directional control valve YV1 obtains electric simultaneously, and the first cartridge valve C1 closes, and pressure is built in the outlet of oil pump B1; The coil of Solenoid ball valve YA1 also electric, the fluid that oil pump B1 exports enters the epicoele of right oil cylinder 3 through Solenoid ball valve YA1, the fluid of right oil cylinder 3 cavity of resorption is pressed into accumulator AC, and the piston rod of right oil cylinder 3 is descending, and the right-hand member of band movable knife rack 4 is descending, and the angle of shear is reduced.(7) topping up: the coil of the first solenoid directional control valve YV1 obtains electric, the first cartridge valve C1 closes; The coil of the 3rd solenoid directional control valve YV3 obtains electric, and the 3rd cartridge valve C3 opens; Open hand stop valve 10 again, the fluid that oil pump B1 exports enters accumulator AC, and close hand stop valve 10 after when reaching certain pressure value, knife rest 4 rises to top dead center under the effect of accumulator AC pressure oil, completes topping up function.(8) this hydraulic system adopts cartridge valve to control knife rest, and the latus rectum of cartridge valve is large, and flow is large, and oil temperature is normal, so noise, rate of fault obviously reduce; Adopt working connection oil pump feed to carry out shearing the method combined with Accumulator return, energy saving, and backhaul is fast, manufacturing efficiency improves greatly; Adopt Accumulator return, hydraulic shock reduces without falling cutter phenomenon, operates steadily reliable.
As a further improvement on the present invention, first solenoid directional control valve (YV1) is two position four-way solenoid valves, the hydraulic control mouth of the first cartridge valve (C1) is connected with the P hydraulic fluid port of the first solenoid directional control valve (YV1), and the A hydraulic fluid port of the first solenoid directional control valve (YV1) is connected with fuel tank; First solenoid directional control valve (YV1) P hydraulic fluid port when power-off communicates with A hydraulic fluid port, and T hydraulic fluid port communicates with B hydraulic fluid port, and when being energized, P hydraulic fluid port communicates with B hydraulic fluid port, and T hydraulic fluid port communicates with A hydraulic fluid port; Pipeline between the hydraulic control mouth of the first cartridge valve (C1) and the P hydraulic fluid port of the first solenoid directional control valve (YV1) is connected with the import of the first relief valve (F1), and the outlet of the first relief valve (F1) is connected with fuel tank.During the first solenoid directional control valve YV1 power-off, the hydraulic control mouth of the first cartridge valve C1 is by the P hydraulic fluid port of the first solenoid directional control valve YV1 and A hydraulic fluid port to tank drainback, and system does not build pressure; When first solenoid directional control valve YV1 obtains electric, the P hydraulic fluid port of the first solenoid directional control valve YV1 communicates with B hydraulic fluid port, and the hydraulic control mouth of the first cartridge valve C1 can not to tank drainback, and the hydraulic control mouth of the first cartridge valve C1 is built pressure and closed by the first cartridge valve C1, makes the outlet of oil pump B1 build pressure.First relief valve F1 plays a protective role, and during pipeline superpressure, automatically opens to tank drainback.
As a further improvement on the present invention, second solenoid directional control valve (YV2) is two position four-way solenoid valves, the hydraulic control mouth of the second cartridge valve (C2) is connected with the P hydraulic fluid port of the second solenoid directional control valve (YV2), and the A hydraulic fluid port of the second solenoid directional control valve (YV2) is connected with the import of the second relief valve (F2); Second solenoid directional control valve (YV2) P hydraulic fluid port when power-off communicates with A hydraulic fluid port, and T hydraulic fluid port communicates with B hydraulic fluid port, and when being energized, P hydraulic fluid port communicates with B hydraulic fluid port, and T hydraulic fluid port communicates with A hydraulic fluid port.Second solenoid directional control valve YV2 is when power-off, and the hydraulic control mouth of the second cartridge valve C2 is connected with the import of the second relief valve F2 by the P hydraulic fluid port of the second solenoid directional control valve YV2 and A hydraulic fluid port; When the oil pressure of the second cartridge valve C2 import is increased to the setting value of the second relief valve F2, second relief valve F2 opens, the hydraulic control mouth of the second cartridge valve C2 passes through P hydraulic fluid port and the A hydraulic fluid port of the second solenoid directional control valve YV2, then by the second relief valve F2 to tank drainback, the second cartridge valve C2 is opened.When the second solenoid directional control valve YV2 obtains electric, the hydraulic control mouth of the second cartridge valve C2 keeps building pressure condition makes the second cartridge valve C2 close.
As a further improvement on the present invention, 3rd solenoid directional control valve (YV3) is two position four-way solenoid valves, the hydraulic control mouth of the 3rd cartridge valve (C3) is connected with the A hydraulic fluid port of the 3rd solenoid directional control valve (YV3), and the P hydraulic fluid port of the 3rd solenoid directional control valve (YV3) is connected with the epicoele of left oil cylinder (2); 3rd solenoid directional control valve (YV3) P hydraulic fluid port when power-off communicates with A hydraulic fluid port, and T hydraulic fluid port communicates with B hydraulic fluid port, and when being energized, P hydraulic fluid port communicates with B hydraulic fluid port, and T hydraulic fluid port communicates with A hydraulic fluid port.During the 3rd solenoid directional control valve YV3 power-off, the hydraulic control mouth of the 3rd cartridge valve C3 is communicated with the epicoele of left oil cylinder 2 by the A hydraulic fluid port of the 3rd solenoid directional control valve YV3 and P hydraulic fluid port, makes the 3rd cartridge valve C3 be in closed condition; When the 3rd solenoid directional control valve YV3 obtains electric, the A hydraulic fluid port of the 3rd solenoid directional control valve YV3 communicates to tank drainback with T hydraulic fluid port, the hydraulic control mouth decompression of the 3rd cartridge valve C3, and the 3rd cartridge valve C3 is opened, and makes the epicoele of left oil cylinder 2 to tank drainback.
As improvement of the present invention, described material carrying mechanism comprises multiple plate retainer device, described plate retainer device comprises retainer steel ball, the top of described retainer steel ball is stretched out from the center hole of steel ball cover plate, the Lower Half of described retainer steel ball is supported on multiple support steel ball, each described support steel ball is arranged in ball-and-socket, described ball-and-socket is positioned at the top center of retainer cylinder piston, described steel ball cover plate is screwed in the top of described retainer cylinder piston, the periphery of described retainer cylinder piston is provided with retainer cylinder sleeve, the upper end outer wall of described retainer cylinder sleeve is provided with retainer cylinder flange, the lower end mouth of described retainer cylinder sleeve is connected with retainer cylinder cylinder bottom, the center of described retainer cylinder cylinder bottom is provided with retainer cylinder exhaust port, the bottom centre of described retainer cylinder piston is provided with retainer cylinder spring eye, is provided with retainer cylinder spring in described retainer cylinder spring eye, and the lower end of described retainer cylinder spring is supported on the center, upper-end surface of described retainer cylinder cylinder bottom.During charging, retainer cylinder piston upwards ejects by the tension force of retainer cylinder spring, makes the table top of top higher than worktable of retainer steel ball, and plate can roll on retainer steel ball, realizes retainer, the weight of the tension support plate of retainer cylinder spring.When shearing plate, because retainer cylinder spring can be compressed, retainer cylinder piston can sink, and make the table top of top lower than worktable of retainer steel ball, binder cylinder can flatten plate, improves shear precision.Retainer cylinder exhaust port makes the lower end of retainer cylinder piston communicate with air, can reduce the resistance to motion of retainer cylinder piston, retainer cylinder piston is elevated smooth and easy.
As a further improvement on the present invention, described retainer cylinder piston is up-small and down-big stepped cylindrical, be provided with retainer cylinder oil pocket between the middle part of described retainer cylinder piston and described retainer cylinder sleeve, described retainer cylinder sleeve is provided with retainer cylinder filler opening and communicates with described retainer cylinder oil pocket; The below of described retainer cylinder oil pocket is provided with retainer cylinder lower seal, the top of described retainer cylinder piston is provided with seal ring on retainer cylinder, and on described retainer cylinder, seal ring and described retainer cylinder lower seal realize the sealing between the outer wall of described retainer cylinder piston and the inwall of described retainer cylinder sleeve respectively; The bottom of described retainer cylinder piston is provided with outwardly limited post shoulder, the inwall of described retainer cylinder sleeve is provided with limited step, when the limited post shoulder of described retainer cylinder piston is resisted against on the limited step of described retainer cylinder sleeve, the end face of described retainer cylinder piston, the end face of steel ball cover plate are all equal with the end face of described retainer cylinder sleeve, and leave sinking gap between the upper-end surface of the bottom surface of described retainer cylinder piston and described retainer cylinder cylinder bottom.When building pressure in retainer cylinder oil pocket, retainer cylinder piston promotes descending, until the bottom of retainer cylinder piston touches retainer cylinder cylinder bottom by oil pressure by the tension force overcoming retainer cylinder spring; The retainer cylinder filler opening of retainer device retainer cylinder sleeve and the filler opening of binder cylinder are connect, when just can be implemented in binder, retainer cylinder piston and the retainer steel ball of retainer device drop to below worktable.Retainer cylinder piston promotes to rise by the tension force of retainer cylinder spring, when the limited post shoulder of retainer cylinder piston is resisted against on the limited step of retainer cylinder sleeve, arrives upper extreme position; When the bottom of retainer cylinder piston touches retainer cylinder cylinder bottom, arrive lower limit position.
As a further improvement on the present invention, the height in described sinking gap is 5 millimeters; Be provided with guide ring on retainer cylinder between the upper inside wall of described retainer cylinder sleeve and the outer wall of described retainer cylinder piston, between the bottom outer wall of described retainer cylinder piston and the inwall of described retainer cylinder sleeve, be provided with guide ring under retainer cylinder; On described retainer cylinder under guide ring and described retainer cylinder guide ring be circumferentially respectively equipped with fracture, described fracture is mutually in 45 ° of overlap joints.During retainer state, during table top 4 millimeters higher than worktable of the top of retainer steel ball; When the bottom of retainer cylinder piston touches retainer cylinder cylinder bottom, the top of retainer steel ball, then lower than the table top 1 millimeter of worktable, achieves and dodges.On retainer cylinder, under guide ring and retainer cylinder, guide ring can prevent from producing Metal Contact between retainer cylinder piston and retainer cylinder sleeve, ensure that retainer cylinder piston does not tilt, and make retainer cylinder piston keep identical distance with seal ring on retainer cylinder and between retainer cylinder lower seal always; On retainer cylinder, under guide ring and retainer cylinder, the fracture of guide ring forms dilatation joint, makes guide ring have certain elasticity.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation, and accompanying drawing only provides reference and explanation use, is not used to limit the present invention.
Fig. 1 is the plan view of lock formula guillotine shear cutting mechanism of the present invention.
Fig. 2 is the cutaway view Amplified image along A-A in Fig. 1.
Fig. 3 is the cutaway view Amplified image along B-B in Fig. 2.
Fig. 4 is the hydraulic system principle figure of lock formula guillotine shear of the present invention.
Fig. 5 is the structural representation of the plate retainer device of lock formula guillotine shear of the present invention.
In figure: 1. lathe bed; 2. left oil cylinder; 3. right oil cylinder; 4. knife rest; 5. connecting rod; 6. ball bearing; 7. sliding axle; 8. sliding shaft base; 9. lock screw; 10. hand stop valve; 11. binder cylinders; 12. fuel tanks; 13. retainer cylinder sleeves; 13a. retainer cylinder flange; 13a1. retainer cylinder bolt hole; 13b. retainer cylinder filler opening; 14. retainer cylinder cylinder bottoms; 14a. retainer cylinder exhaust port; 15. retainer cylinder pistons; 16. retainer cylinder springs; 17. retainer steel balls; 18. support steel ball; 19. steel ball cover plates; Seal ring on 20. retainer cylinders; Guide ring on 21. retainer cylinders; 22. retainer cylinder lower seal; Guide ring under 23. retainer cylinders; 24. retainer cylinder oil pockets; 25. sinking gaps.AC. accumulator; B1. oil pump; M1. actuating motor; YV1. the first solenoid directional control valve; YV2. the second solenoid directional control valve; YV3. the 3rd solenoid directional control valve; YA1. Solenoid ball valve; C1. the first cartridge valve; C2. the second cartridge valve; C3. the 3rd cartridge valve; F1. the first relief valve; F2. the second relief valve; F3. the 3rd relief valve; D1. one-way valve; F. filter.
Embodiment
As shown in Figure 1 to Figure 3, lock formula guillotine shear of the present invention comprises lathe bed 1, material carrying mechanism and cutting mechanism, cutting mechanism comprises left oil cylinder 2, right oil cylinder 3 and knife rest 4, the left end of knife rest 4 is connected to the piston-rod lower end of left oil cylinder 2, the right-hand member of knife rest 4 is connected to the piston-rod lower end of right oil cylinder 3, the cylinder body of left oil cylinder 2 and right oil cylinder 3 is separately fixed on lathe bed 1, the piston-rod lower end of left oil cylinder 2 and right oil cylinder 3 is connected with connecting rod 5 respectively by screw thread, the lower end of connecting rod 5 is respectively equipped with tie rod holes, the axes normal of tie rod holes in piston rod axis and perpendicular to the plane at knife rest 4 place, ball bearing 6 is separately installed with in tie rod holes, sliding axle 7 is separately installed with in the endoporus of ball bearing 6, the lower end of sliding axle 7, ball bearing 6 and connecting rod 5 is all arranged in the mounting hole of knife rest 4, the two ends of sliding axle 7 are supported in the slide opening of sliding shaft base 8 respectively, the exterior edge face of sliding shaft base 8 is respectively equipped with the blind flange stretched out to periphery, and blind flange is connected on knife rest 4.
The upper end of connecting rod 5 is provided with the vertical groove cut off by box thread, and the both sides that lock screw 9 screws in vertical groove make the box thread of connecting rod 5 hold tightly on the male thread of piston-rod lower end.Unclamp lock screw 9, connecting rod 5 and the height that spins of piston-rod lower end can be adjusted, spin after putting in place, tighten lock screw 9 and the box thread of connecting rod 5 is held tightly on the male thread of piston rod, the relative position between connecting rod 5 and piston rod is fixed.
The two ends of sliding axle 7 are respectively flat and upper and lower end face is parallel to each other.The upper lower wall of the upper and lower end face at sliding axle 7 two ends and the slide opening of sliding shaft base 8 fits, and leaves gap between the front and back cambered surface at sliding axle 7 two ends and the slide opening of sliding shaft base 8; Gap is left between the two ends of sliding axle 7 and the slide opening diapire of sliding shaft base 8.
Adjustment the leaning forward and hypsokinesis of knife rest 4, produce gap relative to the static worktable edge of a knife, and the aligning of ball bearing 6 can be leaned on to be used for realization.When adjusting the shearing inclination of knife rest, with left oil cylinder 2 for immovable point, right oil cylinder 3 is turning point, hydraulic system promotes the upper and lower vertical motion of piston rod of right oil cylinder 3, the right-hand member of knife rest 4 is produced around left end rotate, thus changing the angle of knife rest, the displacement that on the right side of knife rest, joint produces relies on sliding axle 7, the cooperation of sliding shaft base 8 realizes.Being limited up and down of the flat axle head of sliding axle 7, can slide in left and right, axially also can slide.This device can relay cylinder moment simultaneously, meets the shearing requirement of lock formula guillotine shear to different-thickness plate.
As shown in Figure 4, in hydraulic system, the cavity of resorption of left oil cylinder 2 is connected with the epicoele of right oil cylinder 3, oil pump B1 exports and is connected with the import of the import of the import of binder cylinder 11, the import of the first cartridge valve C1 and hydraulic control mouth, the second cartridge valve C2 and hydraulic control mouth, Solenoid ball valve YA1 respectively, the outlet of Solenoid ball valve YA1 is connected with the epicoele of right oil cylinder 3, and oil pump B1 also exports manually stop valve 10 and is connected with the cavity of resorption of accumulator AC and right oil cylinder 3; The outlet of the first cartridge valve C1 is connected with fuel tank, and the hydraulic control mouth of the first cartridge valve C1 is also connected with fuel tank by the first solenoid directional control valve YV1; The outlet of the second cartridge valve C2 is connected with the import of one-way valve D1, and the outlet of one-way valve D1 is connected with the epicoele of left oil cylinder 2; The hydraulic control mouth of the second cartridge valve C2 is also connected with the import of the second relief valve F2 by the second solenoid directional control valve YV2, and the outlet of the second relief valve F2 is connected with fuel tank; The hydraulic control mouth of the 3rd cartridge valve C3 is also connected with the epicoele of left oil cylinder 2 by the 3rd solenoid directional control valve YV3; Solenoid ball valve YA1 is 2/2-way Solenoid ball valve, and power-off is closed condition.
The hydraulic control mouth of the second cartridge valve C2 is also connected with the import of the 3rd relief valve F3, and the outlet of the 3rd relief valve F3 is connected with fuel tank, and the 3rd relief valve F3 plays safety protection effect, prevents the undue superpressure of pipeline.
First solenoid directional control valve YV1 is two position four-way solenoid valves, and the hydraulic control mouth of the first cartridge valve C1 is connected with the P hydraulic fluid port of the first solenoid directional control valve YV1, and the A hydraulic fluid port of the first solenoid directional control valve YV1 is connected with fuel tank; First solenoid directional control valve YV1 P hydraulic fluid port when power-off communicates with A hydraulic fluid port, and T hydraulic fluid port communicates with B hydraulic fluid port, and when being energized, P hydraulic fluid port communicates with B hydraulic fluid port, and T hydraulic fluid port communicates with A hydraulic fluid port.
During the first solenoid directional control valve YV1 power-off, the hydraulic control mouth of the first cartridge valve C1 is by the P hydraulic fluid port of the first solenoid directional control valve YV1 and A hydraulic fluid port to tank drainback, and system does not build pressure; When first solenoid directional control valve YV1 obtains electric, the P hydraulic fluid port of the first solenoid directional control valve YV1 communicates with B hydraulic fluid port, the hydraulic control mouth of the first cartridge valve C1 can not to fuel tank 12 oil return, and the hydraulic control mouth of the first cartridge valve C1 is built pressure and closed by the first cartridge valve C1, makes the outlet of oil pump B1 build pressure.
Second solenoid directional control valve YV2 is two position four-way solenoid valves, and the hydraulic control mouth of the second cartridge valve C2 is connected with the P hydraulic fluid port of the second solenoid directional control valve YV2, and the A hydraulic fluid port of the second solenoid directional control valve YV2 is connected with the import of the second relief valve F2; Second solenoid directional control valve YV2 P hydraulic fluid port when power-off communicates with A hydraulic fluid port, and T hydraulic fluid port communicates with B hydraulic fluid port, and when being energized, P hydraulic fluid port communicates with B hydraulic fluid port, and T hydraulic fluid port communicates with A hydraulic fluid port.
Second solenoid directional control valve YV2 is when power-off, and the hydraulic control mouth of the second cartridge valve C2 is connected with the import of the second relief valve F2 by the P hydraulic fluid port of the second solenoid directional control valve YV2 and A hydraulic fluid port; When the oil pressure of the second cartridge valve C2 import is increased to the setting value of the second relief valve F2, second relief valve F2 opens, the hydraulic control mouth of the second cartridge valve C2 passes through P hydraulic fluid port and the A hydraulic fluid port of the second solenoid directional control valve YV2, then by the second relief valve F2 to fuel tank 12 oil return, the second cartridge valve C2 is opened.When the second solenoid directional control valve YV2 obtains electric, the hydraulic control mouth of the second cartridge valve C2 keeps building pressure condition makes the second cartridge valve C2 close.
3rd solenoid directional control valve YV3 is two position four-way solenoid valves, and the hydraulic control mouth of the 3rd cartridge valve C3 is connected with the A hydraulic fluid port of the 3rd solenoid directional control valve YV3, and the P hydraulic fluid port of the 3rd solenoid directional control valve YV3 is connected with the epicoele of left oil cylinder 2; 3rd solenoid directional control valve YV3 P hydraulic fluid port when power-off communicates with A hydraulic fluid port, and T hydraulic fluid port communicates with B hydraulic fluid port, and when being energized, P hydraulic fluid port communicates with B hydraulic fluid port, and T hydraulic fluid port communicates with A hydraulic fluid port.
During the 3rd solenoid directional control valve YV3 power-off, the hydraulic control mouth of the 3rd cartridge valve C3 is communicated with the epicoele of left oil cylinder 2 by the A hydraulic fluid port of the 3rd solenoid directional control valve YV3 and P hydraulic fluid port, makes the 3rd cartridge valve C3 be in closed condition; When the 3rd solenoid directional control valve YV3 obtains electric, the A hydraulic fluid port of the 3rd solenoid directional control valve YV3 communicates to tank drainback with T hydraulic fluid port, the hydraulic control mouth decompression of the 3rd cartridge valve C3, and the 3rd cartridge valve C3 is opened, and makes the epicoele of left oil cylinder 2 to tank drainback.
Pipeline between the hydraulic control mouth of the first cartridge valve C1 and the P hydraulic fluid port of the first solenoid directional control valve YV1 is connected with the import of the first relief valve F1, and the outlet of the first relief valve F1 is connected with fuel tank.
Oil pump B1 is driven by actuating motor M1, and the suction inlet of oil pump B1 is connected with fuel tank 12 by filter F.On state is in during the first solenoid directional control valve YV1 power-off, after oil pump B1 starts, because the hydraulic control mouth of the first cartridge valve C1 is communicated with fuel tank by the first solenoid directional control valve YV1, first cartridge valve C1 opens, the fluid that oil pump B1 exports gets back to fuel tank 12 through the first cartridge valve C1, and the outlet of oil pump B1 does not build pressure.
When the coil of the first solenoid directional control valve YV1 obtain electric after, the first solenoid directional control valve YV1 closes, and the hydraulic control mouth of the first cartridge valve C1 is built pressure and closed by the first cartridge valve C1, and pressure is built in the outlet of oil pump B1.
Shear: the second cartridge valve C2 plays the effect of sequence valve, when shearing plate, the fluid that oil pump B1 exports enters binder cylinder 11, and plate first compresses by binder cylinder 11; Hydraulic control mouth and the import of the second cartridge valve C2 build pressure simultaneously, and make the second cartridge valve C2 be initially in closed condition, the second relief valve F2 is initially also in closed condition; When oil pressure is increased to the setting value reaching the second relief valve F2 gradually, second relief valve F2 opens, the hydraulic control mouth of the second cartridge valve C2 passes through the second solenoid directional control valve YV2 and the second relief valve F2 to tank drainback, second cartridge valve C2 is opened, fluid enters the epicoele of left oil cylinder 2 through one-way valve D1, the fluid of left oil cylinder 2 cavity of resorption enters the epicoele of right oil cylinder 3, the fluid of right oil cylinder 3 cavity of resorption is pressed into accumulator AC, because left oil cylinder 2 and right oil cylinder 3 are series loop, two oil cylinders synchronously drive knife rest 4 descending, shear.During shearing, the 3rd cartridge valve C3 is in closed condition, and Solenoid ball valve YA1 power-off is in closed condition.
Return: shear after stopping, the coil losing electricity of the first solenoid directional control valve YV1, the fluid that oil pump B1 exports gets back to fuel tank 12, system unload through the first cartridge valve C1; The coil of the 3rd solenoid directional control valve YV3 obtains electric simultaneously, the hydraulic control mouth decompression of the 3rd cartridge valve C3 makes the 3rd cartridge valve C3 open, the fluid of left oil cylinder 2 epicoele through the 3rd cartridge valve C3 oil sump tank, the cavity of resorption oiling of accumulator AC release pressure oil cylinder 3 to the right, the piston rod promoting right oil cylinder 3 is up; Now Solenoid ball valve YA1 is still in closed condition, and the fluid of right oil cylinder 3 epicoele enters the cavity of resorption of left oil cylinder 2, and the piston rod of left oil cylinder 2 and right oil cylinder 3 synchronously rises, and band movable knife rack 4 return gets back to top dead center.
Increase the angle of shear: hand stop valve 10 is in closed condition, the equal dead electricity of coil of the coil of the first solenoid directional control valve YV1, the coil of the second solenoid directional control valve YV2 and the 3rd solenoid directional control valve YV3, Solenoid ball valve YA1 obtains electric opening simultaneously; First solenoid directional control valve YV1 dead electricity makes the outlet of oil pump B1 not build pressure, and Solenoid ball valve YA1 obtains electric opening makes the epicoele of right oil cylinder 3 and the outlet of oil pump B1 connect; The coil of the second solenoid directional control valve YV2 and the coil losing electricity of the 3rd solenoid directional control valve YV3, the fluid pipeline of left oil cylinder 2 epicoele is cut off by one-way valve D1 and the 3rd cartridge valve C3, and the piston rod of left oil cylinder 2 maintains static, and makes the left end of knife rest 4 motionless.The now cavity of resorption oiling of accumulator AC release pressure oil cylinder 3 to the right, the piston rod promoting right oil cylinder 3 is up, and the epicoele of right oil cylinder 3 is by Solenoid ball valve YA1 oil return, and the right-hand member of band movable knife rack 4 is up, and the angle of shear is increased.
Reduce the angle of shear: the coil of the second solenoid directional control valve YV2 and the coil losing electricity of the 3rd solenoid directional control valve YV3, the fluid pipeline of left oil cylinder 2 epicoele is cut off by one-way valve D1 and the 3rd cartridge valve C3, the piston rod of left oil cylinder 2 maintains static, and makes the left end of knife rest 4 motionless.The coil of the first solenoid directional control valve YV1 obtains electric simultaneously, and the first cartridge valve C1 closes, and pressure is built in the outlet of oil pump B1; The coil of Solenoid ball valve YA1 also electric, the fluid that oil pump B1 exports enters the epicoele of right oil cylinder 3 through Solenoid ball valve YA1, the fluid of right oil cylinder 3 cavity of resorption is pressed into accumulator AC, and the piston rod of right oil cylinder 3 is descending, and the right-hand member of band movable knife rack 4 is descending, and the angle of shear is reduced.
Topping up: the coil of the first solenoid directional control valve YV1 obtains electric, the first cartridge valve C1 closes; The coil of the 3rd solenoid directional control valve YV3 obtains electric, and the 3rd cartridge valve C3 opens; Open hand stop valve 10 again, the fluid that oil pump B1 exports enters accumulator AC, and close hand stop valve 10 after when reaching certain pressure value, knife rest 4 rises to top dead center under the effect of accumulator AC pressure oil, completes topping up function.
Material carrying mechanism comprises multiple plate retainer device holding plate, as shown in Figure 5, plate retainer device comprises retainer steel ball 17, the top of retainer steel ball 17 is stretched out from the center hole of steel ball cover plate 19, the Lower Half of retainer steel ball 17 is supported on multiple support steel ball 18, each support steel ball 18 is arranged in ball-and-socket, ball-and-socket is positioned at the top center of retainer cylinder piston 15, steel ball cover plate 19 is screwed in the top of retainer cylinder piston 15, the periphery of retainer cylinder piston 15 is provided with retainer cylinder sleeve 13, the upper end outer wall of retainer cylinder sleeve 13 is provided with retainer cylinder flange 13a, retainer cylinder flange 13a is circumferentially evenly equipped with retainer cylinder bolt hole 13a1, bolt screws in retainer cylinder bolt hole 13a1 and is fixed on fixed base by retainer cylinder sleeve 13.The lower end mouth of retainer cylinder sleeve 13 is connected with retainer cylinder cylinder bottom 14, the bottom centre of retainer cylinder piston 15 is provided with retainer cylinder spring eye, retainer cylinder spring 16 is provided with in retainer cylinder spring eye, the lower end of retainer cylinder spring 16 is supported on the center, upper-end surface of retainer cylinder cylinder bottom 14, and the center of retainer cylinder cylinder bottom 14 is provided with retainer cylinder exhaust port 14a.
Retainer cylinder piston 15 is up-small and down-big stepped cylindrical, is provided with retainer cylinder oil pocket 24 between the middle part of retainer cylinder piston 15 and retainer cylinder sleeve 13, and retainer cylinder sleeve 13 is provided with retainer cylinder filler opening 13b and communicates with retainer cylinder oil pocket 24; The below of retainer cylinder oil pocket 24 is provided with retainer cylinder lower seal 22, the top of retainer cylinder piston 15 is provided with seal ring 20 on retainer cylinder, and on retainer cylinder, seal ring 20 and retainer cylinder lower seal 22 realize the sealing between the outer wall of retainer cylinder piston 15 and the inwall of retainer cylinder sleeve 13 respectively.Be provided with guide ring 21 on retainer cylinder between the upper inside wall of retainer cylinder sleeve 13 and the outer wall of retainer cylinder piston 15, between the bottom outer wall of retainer cylinder piston 15 and the inwall of retainer cylinder sleeve 13, be provided with guide ring 23 under retainer cylinder.When building pressure in retainer cylinder oil pocket 24, retainer cylinder piston 15 promotes descending by oil pressure by the tension force overcoming retainer cylinder spring 16, until the bottom of retainer cylinder piston 15 touches retainer cylinder cylinder bottom 14.The retainer cylinder filler opening 13b of retainer cylinder sleeve 13 and the filler opening of binder cylinder 11 are connect, when just can be implemented in binder, the retainer cylinder piston 15 of retainer device and retainer steel ball 17 drop to below worktable.
The bottom of retainer cylinder piston 15 is provided with outwardly limited post shoulder, the inwall of retainer cylinder sleeve 13 is provided with limited step, when the limited post shoulder of retainer cylinder piston 15 is resisted against on the limited step of retainer cylinder sleeve 13, the end face of retainer cylinder piston 15, the end face of steel ball cover plate 19 are all equal with the end face of retainer cylinder sleeve 13, and leaving sinking gap 25 between the upper-end surface of the bottom surface of retainer cylinder piston 15 and retainer cylinder cylinder bottom 14, the height in sinking gap 25 is 5 millimeters.
During charging, retainer cylinder piston 15 upwards ejects by the tension force of retainer cylinder spring 16, when the limited post shoulder of retainer cylinder piston 15 is resisted against on the limited step of retainer cylinder sleeve 13, arrive upper extreme position, the top of retainer steel ball 17 is higher than the table top of worktable, plate can roll on retainer steel ball 17, realizes retainer, the weight of the tension support plate of retainer cylinder spring 16.
When shearing plate, hydraulic oil enters retainer cylinder oil pocket 24 from retainer cylinder filler opening 13b, retainer cylinder piston 15 promotes descending by the tension force of oil pressure counter retainer cylinder spring 16, until the bottom of retainer cylinder piston 15 touches retainer cylinder cylinder bottom 14, arrive lower limit position, make the table top of top lower than worktable of retainer steel ball 17, binder cylinder 11 can flatten plate, improves shear precision.Such as during retainer state, during table top 4 millimeters higher than worktable of the top of retainer steel ball 17; When the bottom of retainer cylinder piston 15 touches retainer cylinder cylinder bottom 14, the top of retainer steel ball 17, then lower than the table top 1 millimeter of worktable, achieves and dodges.
The foregoing is only the better possible embodiments of the present invention, non-ly therefore limit to scope of patent protection of the present invention.In addition to the implementation, the present invention can also have other mode of executions.All employings are equal to the technological scheme of replacement or equivalent transformation formation, all drop in the protection domain of application claims.The present invention can pass through without the technical characteristics described or adopt existing techniques in realizing, does not repeat them here.
Claims (10)
1. a lock formula guillotine shear, comprise lathe bed, material carrying mechanism and cutting mechanism, described cutting mechanism comprises left oil cylinder, right oil cylinder and knife rest, the left end of described knife rest is connected to the piston-rod lower end of left oil cylinder, the right-hand member of described knife rest is connected to the piston-rod lower end of right oil cylinder, the cylinder body of described left oil cylinder and right oil cylinder is separately fixed on described lathe bed, and described left oil cylinder and right oil cylinder are all controlled by hydraulic system, it is characterized in that: the piston-rod lower end of described left oil cylinder and right oil cylinder is connected with connecting rod respectively by screw thread, the lower end of described connecting rod is respectively equipped with tie rod holes, the axes normal of described tie rod holes in described piston rod axis and perpendicular to the plane at described knife rest place, ball bearing is separately installed with in described tie rod holes, sliding axle is separately installed with in the endoporus of described ball bearing, the lower end of described sliding axle, ball bearing and described connecting rod is all arranged in the mounting hole of described knife rest, the two ends of described sliding axle are supported in the slide opening of sliding shaft base respectively, the exterior edge face of described sliding shaft base is respectively equipped with the blind flange stretched out to periphery, and described blind flange is connected on described knife rest.
2. lock formula guillotine shear according to claim 1, is characterized in that: the two ends of described sliding axle are respectively flat and upper and lower end face is parallel to each other; The upper lower wall of the upper and lower end face at described sliding axle two ends and the slide opening of described sliding shaft base fits, and leaves gap between the left and right cambered surface at described sliding axle two ends and the slide opening of described sliding shaft base; Gap is left between the two ends of described sliding axle and the slide opening diapire of described sliding shaft base.
3. lock formula guillotine shear according to claim 1, it is characterized in that: the upper end of described connecting rod is provided with the vertical groove cut off by box thread, the both sides that lock screw screws in described vertical groove make the box thread of described connecting rod hold tightly on the male thread of described piston-rod lower end.
4. lock formula guillotine shear according to claim 1, it is characterized in that: in described hydraulic system, the cavity of resorption of left oil cylinder (2) is connected with the epicoele of right oil cylinder (3), oil pump (B1) outlet respectively with the import of binder cylinder (11), the import of the first cartridge valve (C1) and hydraulic control mouth, the import of the second cartridge valve (C2) and hydraulic control mouth, the import of Solenoid ball valve (YA1) is connected, the outlet of Solenoid ball valve (YA1) is connected with the epicoele of right oil cylinder (3), oil pump (B1) also exports manually stop valve (10) and is connected with the cavity of resorption of accumulator (AC) and right oil cylinder (3), the outlet of the first cartridge valve (C1) is connected with fuel tank, and the hydraulic control mouth of the first cartridge valve (C1) is also connected with fuel tank by the first solenoid directional control valve (YV1), the outlet of the second cartridge valve (C2) is connected with the import of one-way valve (D1), and the outlet of one-way valve (D1) is connected with the epicoele of left oil cylinder (2), the hydraulic control mouth of the second cartridge valve (C2) is also connected with the import of the second relief valve (F2) by the second solenoid directional control valve (YV2), and the outlet of the second relief valve (F2) is connected with fuel tank, the hydraulic control mouth of the 3rd cartridge valve (C3) is also connected with the epicoele of left oil cylinder (2) by the 3rd solenoid directional control valve (YV3), Solenoid ball valve (YA1) is 2/2-way Solenoid ball valve, and power-off is closed condition.
5. lock formula guillotine shear according to claim 4, it is characterized in that: the first solenoid directional control valve (YV1) is two position four-way solenoid valves, the hydraulic control mouth of the first cartridge valve (C1) is connected with the P hydraulic fluid port of the first solenoid directional control valve (YV1), and the A hydraulic fluid port of the first solenoid directional control valve (YV1) is connected with fuel tank; First solenoid directional control valve (YV1) P hydraulic fluid port when power-off communicates with A hydraulic fluid port, and T hydraulic fluid port communicates with B hydraulic fluid port, and when being energized, P hydraulic fluid port communicates with B hydraulic fluid port, and T hydraulic fluid port communicates with A hydraulic fluid port; Pipeline between the hydraulic control mouth of the first cartridge valve (C1) and the P hydraulic fluid port of the first solenoid directional control valve (YV1) is connected with the import of the first relief valve (F1), and the outlet of the first relief valve (F1) is connected with fuel tank.
6. lock formula guillotine shear according to claim 4, it is characterized in that: the second solenoid directional control valve (YV2) is two position four-way solenoid valves, the hydraulic control mouth of the second cartridge valve (C2) is connected with the P hydraulic fluid port of the second solenoid directional control valve (YV2), and the A hydraulic fluid port of the second solenoid directional control valve (YV2) is connected with the import of the second relief valve (F2); Second solenoid directional control valve (YV2) P hydraulic fluid port when power-off communicates with A hydraulic fluid port, and T hydraulic fluid port communicates with B hydraulic fluid port, and when being energized, P hydraulic fluid port communicates with B hydraulic fluid port, and T hydraulic fluid port communicates with A hydraulic fluid port.
7. lock formula guillotine shear according to claim 4, it is characterized in that: the 3rd solenoid directional control valve (YV3) is two position four-way solenoid valves, the hydraulic control mouth of the 3rd cartridge valve (C3) is connected with the A hydraulic fluid port of the 3rd solenoid directional control valve (YV3), and the P hydraulic fluid port of the 3rd solenoid directional control valve (YV3) is connected with the epicoele of left oil cylinder (2); 3rd solenoid directional control valve (YV3) P hydraulic fluid port when power-off communicates with A hydraulic fluid port, and T hydraulic fluid port communicates with B hydraulic fluid port, and when being energized, P hydraulic fluid port communicates with B hydraulic fluid port, and T hydraulic fluid port communicates with A hydraulic fluid port.
8. lock formula guillotine shear according to claim 1, it is characterized in that: described material carrying mechanism comprises multiple plate retainer device, described plate retainer device comprises retainer steel ball, the top of described retainer steel ball is stretched out from the center hole of steel ball cover plate, the Lower Half of described retainer steel ball is supported on multiple support steel ball, each described support steel ball is arranged in ball-and-socket, described ball-and-socket is positioned at the top center of retainer cylinder piston, described steel ball cover plate is screwed in the top of described retainer cylinder piston, the periphery of described retainer cylinder piston is provided with retainer cylinder sleeve, the upper end outer wall of described retainer cylinder sleeve is provided with retainer cylinder flange, the lower end mouth of described retainer cylinder sleeve is connected with retainer cylinder cylinder bottom, the center of described retainer cylinder cylinder bottom is provided with retainer cylinder exhaust port, the bottom centre of described retainer cylinder piston is provided with retainer cylinder spring eye, is provided with retainer cylinder spring in described retainer cylinder spring eye, and the lower end of described retainer cylinder spring is supported on the center, upper-end surface of described retainer cylinder cylinder bottom.
9. lock formula guillotine shear according to claim 1, it is characterized in that: described retainer cylinder piston is up-small and down-big stepped cylindrical, be provided with retainer cylinder oil pocket between the middle part of described retainer cylinder piston and described retainer cylinder sleeve, described retainer cylinder sleeve is provided with retainer cylinder filler opening and communicates with described retainer cylinder oil pocket; The below of described retainer cylinder oil pocket is provided with retainer cylinder lower seal, the top of described retainer cylinder piston is provided with seal ring on retainer cylinder, and on described retainer cylinder, seal ring and described retainer cylinder lower seal realize the sealing between the outer wall of described retainer cylinder piston and the inwall of described retainer cylinder sleeve respectively; The bottom of described retainer cylinder piston is provided with outwardly limited post shoulder, the inwall of described retainer cylinder sleeve is provided with limited step, when the limited post shoulder of described retainer cylinder piston is resisted against on the limited step of described retainer cylinder sleeve, the end face of described retainer cylinder piston, the end face of steel ball cover plate are all equal with the end face of described retainer cylinder sleeve, and leave sinking gap between the upper-end surface of the bottom surface of described retainer cylinder piston and described retainer cylinder cylinder bottom.
10. lock formula guillotine shear according to claim 9, is characterized in that: the height in described sinking gap is 5 millimeters; Be provided with guide ring on retainer cylinder between the upper inside wall of described retainer cylinder sleeve and the outer wall of described retainer cylinder piston, between the bottom outer wall of described retainer cylinder piston and the inwall of described retainer cylinder sleeve, be provided with guide ring under retainer cylinder; On described retainer cylinder under guide ring and described retainer cylinder guide ring be circumferentially respectively equipped with fracture, described fracture is mutually in 45 ° of overlap joints.
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| CN201510015598.6A CN104551208B (en) | 2015-01-13 | 2015-01-13 | Gate type plate shearing machine |
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| CN201510015598.6A CN104551208B (en) | 2015-01-13 | 2015-01-13 | Gate type plate shearing machine |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107803550A (en) * | 2017-12-13 | 2018-03-16 | 安徽东海机床制造有限公司 | A kind of pneumatic material carrying mechanism of plate shearing machine and control system and retainer method |
| CN108787952A (en) * | 2018-07-09 | 2018-11-13 | 盐城迈克瑞机械有限公司 | A kind of steel wool cutting swivelling tool-holder |
| CN111531219A (en) * | 2020-05-11 | 2020-08-14 | 朱佳琦 | Hydraulic automatic control system of hydraulic shearing machine tool |
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| CN104551208B (en) | 2017-01-11 |
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