A kind of frame type hydraulic press
Technical field
The utility model belongs to hydraulic press field, specifically, relates to a kind of frame type hydraulic press.
Background technology
Hydraulic press is a kind of plant equipment utilizing the static pressure of oil pump conveying liquid force feed to come the goods such as processing metal, plastics, rubber, timber, powder.It is usually used in pressing process and block pressing forming process, as: forging and stamping, punching press, cold-extruded, alignment, bending, flange, process of sheet drawing, powder metallurgy, press-fits etc.Frame type hydraulic press is the one of hydraulic press, and the work such as it is applicable to assemble element part, dismantle, alignment, calendering, stretching, bending, punching, really realizes a tractor serves several purposes; Can be used for correcting deformed workpiece, dismounting cylinder cone bearing, press-fit various fitted component.The course of work of conventional hydraulic machine is, first installs the mould corresponding to processed product, and mould run-of-the-mill is large, needs special bolt to fix; Then raw material are placed on mould, by hydraulic press punch forming; Finally take off workpiece.A mould is installed and can only processes a kind of product, processing multiple product needs repeatedly more mold exchange, or be equipped with multiple stage hydraulic press, and hydraulic press is generally bulky, price is high, be equipped with multiple stage hydraulic press not only to occupy very large space but also need very large cost to drop into, obviously unrealistic for the manufacturer of general economic strength, so can only after processing a kind of product, change another product of Mould Machining immediately, although provide cost savings like this, but the production time of preciousness has been wasted on repeated disassembled and assembled mould, become the speed of production improved further on production line, improve the maximum restraining factors of production efficiency.In addition, along with improving constantly of living standards of the people, constantly popularizing of various household electrical appliances, require that the production line producing various household electrical appliances auxiliary products has faster stronger production capacity, hydraulic press is as the equipment that household electrical appliances production line uses, and the problems referred to above of existence highlight its pickle, how to improve the speed of production of hydraulic press, how to make hydraulic press more flexible, stable, can become hydraulic press hold ground on a production line, even expands the key of use.
Through retrieval to existing hydraulic press, find as, China Patent No. 201210038872.8, the patent application document in publication date on July 18th, 2012, discloses four post hydraulic forging presses, by column, and upper, middle and lower crossbeam, operating cylinder and backhaul oil cylinder are formed; Be provided with guide pillar structure between middle cross beam and column, be characterized in: guide pillar structure comprises four groups of guidance sets be made up of guide plate and wedge, and wedge presses solidly in middle cross beam by pressing plate; Guide plate is provided with gripper shoe near the position of upper end, is provided with adjusting pad between gripper shoe and pressing plate; The lower end of operating cylinder plunger rod is shaped with cylindrical cavity, is provided with the first ball ring and sphere post in cylindrical cavity, and sphere post outer cover is equipped with support set, and the lower end lug boss of support set is added is equipped with supporting structure, is provided with cushion between supporting structure and lug boss; The inside, lower end of support set is provided with the second ball ring.Adopt said structure, column contacts with guide frame forming surface, reduces local pressure, avoids column and pulls; In addition, rotated by the cooperation of the second ball ring, sphere post and the first ball ring, avoid plunger rod and deflect along axis, thus reduce cylinder body and plunger rod pulls destruction.
And for example, China Patent No. 201410118635.1, the patent application document in publication date on June 18th, 2014, disclose a kind of Novel frame-type high speed hydraulic press, comprise fuselage, oil cylinder, dynamic hydraulic system, electric control system and security system, described dynamic hydraulic system comprises Hydraulic Station and fluid pressure line, described fuselage is integral frame-type structure, described body upper is provided with platform, described Hydraulic Station is arranged on the platform, the middle part of described fuselage is provided with guider, and the corner, bottom of described fuselage is provided with levelling device.This invention adopts said structure, first fuselage is integral frame-type structure, make overall stiffness and stability high, adopt Hydraulic Station overhead simultaneously, take up room little, and be provided with levelling device, thus can anti-limited slip block generation unbalance loading phenomenon, operating rate is fast, good with the depth of parallelism of workbench in slide block unbalance loading situation.In addition, it is high that this hydraulic press has guiding accuracy, and non-deformability is strong, the advantages such as precision stability is good, not yielding.
But foregoing invention comparatively conventional hydraulic machine still exists that speed of production is comparatively slow, work is heavy, and production cost is high, is not suitable for the production and application on household electrical appliances auxiliary products fast production lines.
Summary of the invention
The problem that 1, will solve
For meeting on household electrical appliances auxiliary products production line fast, requirement flexibly, solve production line pressure large, the problem that labor strength is large, the utility model provides a kind of frame type hydraulic press, comprise travelling table, use the utility model can meet household electrical appliances auxiliary products production line fast, requirement flexibly, and machining accuracy is high, has safety, stable advantage.
2, technical scheme
For solving the problem, the utility model adopts following technical scheme.
A kind of frame type hydraulic press, comprises ground, fuselage and hydraulic system; Described fuselage is arranged on ground, and fuselage comprises travelling table; Described hydraulic system is arranged on the top of fuselage; Described travelling table comprises base, mobile device and fast fixture; Described mobile device comprises location hydraulic control system, die bottom plate, the first oil cylinder and line slideway auxiliary; Described line slideway auxiliary is strip guide rail, and quantity is two, is arranged on abreast between base and die bottom plate, and line slideway auxiliary is divided into upper rail and lower guideway; The upper surface of described upper rail is connected with the lower surface of die bottom plate, and upper rail lower surface is provided with T-shaped groove; The lower surface of described lower guideway is connected with base upper surface, and lower guideway upper surface is provided with T-shaped projection; Described T-shaped groove and T-shaped projection match, and are connected by die bottom plate with base; One end of the first described oil cylinder is connected with die bottom plate, and the other end is connected with base, and the first oil cylinder is parallel with line slideway auxiliary; Described location hydraulic control system comprises pumping plant, proportioning valve, amplifier, controller and velocity sensor; The first described oil cylinder comprises piston rod, oil-in and oil-out; It is inner that described piston rod one end is positioned at the first oil cylinder, and the other end stretches out the first oil cylinder and is connected with die bottom plate, and one end that piston rod stretches out the first oil cylinder is provided with velocity sensor; Described pumping plant is connected with proportioning valve; Described proportioning valve is provided with the first hydraulic fluid port, the second hydraulic fluid port and calutron; The first described hydraulic fluid port is connected with the oil-in of the first oil cylinder; The second described hydraulic fluid port is connected with the oil-out of the first oil cylinder; Described calutron is connected with amplifier; Described controller one end is connected with amplifier, and the other end is connected with velocity sensor; Described base upper surface is provided with groove; The length direction of described groove is vertical with the length direction of the first oil cylinder; Described fast fixture is two, is arranged on the both sides in base groove symmetrically, and fast fixture comprises slide mass, the second oil cylinder and mould holder; Second described oil cylinder one end is fixed on base, and the other end is connected with slide mass; Described die bottom plate is provided with the oblong openings perpendicular to the first oil cylinder; Described mould holder is connected with slide mass through after oblong openings.
Preferably, described velocity sensor comprises sensor contact; Described sensor contact is rolling contact; Described proportioning valve is 3-position 4-way proportional reversing valve.
Preferably, described hydraulic system comprises hydraulic pump and motor; Described hydraulic pump is bent axis type axial piston pump; The power of described motor is 30kw.
Preferably, the first described oil cylinder is arranged on the line of symmetry between two line slideway auxiliaries; Described line slideway auxiliary and the distance of base side are 30-50mm.
Preferably, described slide mass upper surface is provided with screwed hole; One end that described mould holder is connected with slide mass is provided with external screw thread; The corresponding threaded holes of described external screw thread and slide mass upper surface closes; The screwed hole of described slide mass upper surface is 1-8.
Preferably, the side on the top of described mould holder is provided with friction protrusion.
Preferably, the upper surface of described upper rail is connected with the lower surface of die bottom plate by bolt; The lower surface of described lower guideway and the connection of base upper surface are for welding.
Preferably, one end of the first described oil cylinder is connected with die bottom plate by bolt, and the other end is connected with base by bolt.3, beneficial effect
Compared to prior art, the beneficial effects of the utility model are:
(1) the utility model comprises ground, fuselage and hydraulic system; Fuselage is arranged on ground, and fuselage comprises travelling table; Hydraulic system is arranged on the top of fuselage; Travelling table comprises base, mobile device and fast fixture, can realize quick die change and die-filling, greatly accelerate the speed of production on production line, improve production efficiency by mobile device and fast fixture;
(2) the utility model mobile device comprises location hydraulic control system, die bottom plate, the first oil cylinder and line slideway auxiliary; Line slideway auxiliary is strip guide rail, and quantity is two, is arranged on abreast between base and die bottom plate, and line slideway auxiliary is divided into upper rail and lower guideway; The upper surface of upper rail is connected with the lower surface of die bottom plate, and upper rail lower surface is provided with T-shaped groove; The lower surface of lower guideway is connected with base upper surface, and lower guideway upper surface is provided with T-shaped projection; T-shaped groove and T-shaped projection match, and are connected by die bottom plate with base, and the setting of line slideway auxiliary makes mobile device more stable, thus improves the stability of the utility model device, and then provide the foundation for the accuracy of the utility model device; One end of first oil cylinder is connected with die bottom plate, and the other end is connected with base, and the first oil cylinder is parallel with line slideway auxiliary; Location hydraulic control system comprises pumping plant, proportioning valve, amplifier, controller and velocity sensor, location hydraulic control system provides accurate control system to mobile device, ensure that the utility model device can navigate to die change point and operating point quickly and accurately in die-filling process; First oil cylinder comprises piston rod, oil-in and oil-out; It is inner that piston rod one end is positioned at the first oil cylinder, and the other end stretches out the first oil cylinder and is connected with die bottom plate, and one end that piston rod stretches out the first oil cylinder is provided with velocity sensor; Pumping plant is connected with proportioning valve; Proportioning valve is provided with the first hydraulic fluid port, the second hydraulic fluid port and calutron; First hydraulic fluid port is connected with the oil-in of the first oil cylinder; Second hydraulic fluid port is connected with the oil-out of the first oil cylinder; Calutron is connected with amplifier; Controller one end is connected with amplifier, and the other end is connected with velocity sensor, and location hydraulic control system provides power to mobile device, and make the utility model device quick die change and die-filling on have more accurate and control system fast; Base upper surface is provided with groove; The length direction of groove is vertical with the length direction of the first oil cylinder; Fast fixture is two, is arranged on the both sides in base groove symmetrically, and fast fixture comprises slide mass, the second oil cylinder and mould holder; Second oil cylinder one end is fixed on base, and the other end is connected with slide mass; Die bottom plate is provided with the oblong openings perpendicular to the first oil cylinder; Mould holder is connected with slide mass through after oblong openings, fast fixture changes the method for conventional mounting, fixed mould, provide quicker, safe mould installation, fixed form, a large amount of die-filling time can be saved, also make quick die change on production line convenient, improve production efficiency;
(3) the utility model velocity sensor comprises sensor contact; Sensor contact is rolling contact; Proportioning valve is 3-position 4-way proportional reversing valve, and rolling contact is more flexibly with durable, and 3-position 4-way proportioning valve is more accurate, stable when regulator solution pressure pressure and flow;
(4) the utility model hydraulic system comprises hydraulic pump and motor; Hydraulic pump is bent axis type axial piston pump; The power of motor is 30kw, and make hydraulic system space compacter, volume is less, and floor space is less;
(5) the first oil cylinder of the utility model device is arranged on the line of symmetry between two line slideway auxiliaries; The distance of line slideway auxiliary and base side is 30-50mm, and the motive force that the first oil cylinder brings to die bottom plate is more even, makes mobile device more stable;
(6) the utility model slide mass upper surface is provided with screwed hole; One end that mould holder is connected with slide mass is provided with external screw thread; The corresponding threaded holes of external screw thread and slide mass upper surface closes; The screwed hole of slide mass upper surface is 1-8; Mould holder according to mould size adjustment position and distance, can expand the envelop of function of fast fixture;
(7) side on the top of the utility model mould holder is provided with friction protrusion; Bossing firmly can clamp mould, mould is installed more firm, improve the security performance of device;
(8) upper surface of the utility model upper rail is connected with the lower surface of die bottom plate by bolt; The lower surface of lower guideway and the connection of base upper surface are for welding; One end of first oil cylinder is connected with die bottom plate by bolt, and the other end is connected with base by bolt, and bolted each several part makes parts to dismantle, and maintains easily and changes, and welding is then for improving firm reliability;
Accompanying drawing explanation
Fig. 1 is complete machine schematic diagram of the present utility model;
Fig. 2 is the utility model movable workbench structure schematic diagram;
Fig. 3 is the side view of Fig. 2;
Fig. 4 is the location hydraulic control system schematic diagram of the utility model mobile device.
In figure: 1, fuselage; 2, hydraulic system; 3, travelling table; 301, die bottom plate; 302, the first oil cylinder; 303, line slideway auxiliary; 304, the second oil cylinder; 305, base; 306, mould holder; 31, pumping plant; 32, proportioning valve; 33, amplifier; 34, controller; 35, velocity sensor.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is described further.
Embodiment 1
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, a kind of frame type hydraulic press, comprises ground, fuselage 1 and hydraulic system 2; Fuselage 1 is arranged on ground, and fuselage 1 comprises travelling table 3; Hydraulic system 2 is arranged on the top of fuselage 1, and hydraulic system 2 comprises hydraulic pump and motor; Hydraulic pump is bent axis type axial piston pump; The power of motor is 30kw; Travelling table 3 comprises base 305, mobile device and fast fixture; Mobile device comprises location hydraulic control system, die bottom plate 301, first oil cylinder 302 and line slideway auxiliary 303; Line slideway auxiliary 303 is strip guide rail, and quantity is two, is arranged between base 305 and die bottom plate 301 abreast, and line slideway auxiliary 303 is 40mm with the distance of base 305 side, and line slideway auxiliary 303 is divided into upper rail and lower guideway; The upper surface of upper rail is connected by the lower surface of bolt with die bottom plate 301, and upper rail lower surface is provided with T-shaped groove; The lower surface of lower guideway and the connection of base 305 upper surface are for welding, and lower guideway upper surface is provided with T-shaped projection; T-shaped groove and T-shaped projection match, and are connected by die bottom plate 301 with base 305; One end of first oil cylinder 302 is connected with die bottom plate 301 by bolt, and the other end is connected with base 305 by bolt, and the first oil cylinder 302 is parallel with line slideway auxiliary 303, and the first oil cylinder 302 is arranged on the line of symmetry between two line slideway auxiliaries 303; Location hydraulic control system comprises pumping plant 31, proportioning valve 32, amplifier 33, controller 34 and velocity sensor 35; First oil cylinder 302 comprises piston rod, oil-in and oil-out; It is inner that piston rod one end is positioned at the first oil cylinder 302, and the other end stretches out the first oil cylinder 302 and is connected with die bottom plate 301, and one end that piston rod stretches out the first oil cylinder 302 is provided with velocity sensor 35; Velocity sensor 35 comprises sensor contact; Sensor contact is rolling contact; Pumping plant 31 is connected with proportioning valve 32; Proportioning valve 32 is provided with the first hydraulic fluid port, the second hydraulic fluid port and calutron; Proportioning valve 32 is 3-position 4-way proportional reversing valve; First hydraulic fluid port is connected with the oil-in of the first oil cylinder 302; Second hydraulic fluid port is connected with the oil-out of the first oil cylinder 302; Calutron is connected with amplifier 33; Controller 34 one end is connected with amplifier 33, and the other end is connected with velocity sensor 35; Base 305 upper surface is provided with groove; The length direction of groove is vertical with the length direction of the first oil cylinder 302; Fast fixture is two, is arranged on the both sides in base 305 groove symmetrically, and fast fixture comprises slide mass, the second oil cylinder 304 and mould holder 306; Second oil cylinder 304 one end is fixed on base 305, and the other end is connected with slide mass; Die bottom plate 301 is provided with the oblong openings perpendicular to the first oil cylinder 302; Mould holder 306 is connected with slide mass through after oblong openings; Slide mass upper surface is provided with screwed hole; The side on the top of mould holder 306 is provided with friction protrusion, and one end that mould holder 306 is connected with slide mass is provided with external screw thread; The corresponding threaded holes of external screw thread and slide mass upper surface closes; The screwed hole of slide mass upper surface is 5.
A kind of using method of frame type hydraulic press in the present embodiment, needs replacing twice mould, the steps include:
Preparation before A work, checks that whether each parts of fuselage 1 are complete, whether has foreign material, try hydraulic system 2 out, checks that whether pressure is normal, checks that whether flexibly, reliably each several part action;
B clamping mold, comprises the following steps:
1) die bottom plate 301 is stretched out, start location hydraulic control system, pumping plant 31 brings into operation, the signal of telecommunication is exported by controller 34, proportioning valve 32 is sent to through amplifier 33, first hydraulic fluid port of proportioning valve 32 is opened to the first oil cylinder 302 oil-in input pressure oil, second hydraulic fluid port of proportioning valve 32 opens the fluid receiving and flow back to from the first oil cylinder 302 oil-out simultaneously, the die bottom plate 301 that first oil cylinder 302 promotes on travelling table 3 stretches out, stretch out in process, the piston rod that the first oil cylinder 302 monitored by velocity sensor 35 stretches out speed, feed back to controller 34, the flow of control ratio valve 32 output pressure fluid after piston rod outreach determined as calculated by controller 34, die bottom plate 301 is accurately located,
2) the first mould is placed on die bottom plate 301, adjusts orientation;
3) die bottom plate 301 is regained, the signal of telecommunication is exported by controller 34, proportioning valve 32 is sent to through amplifier 33, second hydraulic fluid port of proportioning valve 32 is opened to the first oil cylinder 302 oil-out input pressure oil, first hydraulic fluid port of proportioning valve 32 opens the fluid receiving and flow back to from the first oil cylinder 302 oil-in simultaneously, first oil cylinder 302 pulls the die bottom plate 301 on travelling table 3 to regain, in withdrawal process, the piston rod that the first oil cylinder 302 monitored by velocity sensor 35 regains speed, feed back to controller 34, controller 34 determines that piston rod regains the flow apart from rear control ratio valve 32 output pressure fluid as calculated, die bottom plate 301 is accurately playbacked,
4) fast fixture is started, by mould holder 306 Quick-clamped first mould, the first mould installation;
C stamped workpieces, is placed on above mould by sheet material to be processed, is fallen, complete the punch forming of sheet material by hydraulic system 2 hydraulic control machine slide block;
D starts fast fixture, makes mould holder 306 unclamp the first mould, repeats the step 1 in step B), unload workpiece, unload the first mould;
E changes the second mould, and its step is as follows:
1) the second mould is placed on die bottom plate 301, adjusts orientation;
2) step 3 in step B is repeated);
3) fast fixture is started, by mould holder 306 Quick-clamped second mould, the second mould installation;
F repeats step C, starts fast fixture, makes mould holder 306 unclamp the second mould, repeats the step 1 in step B), unload workpiece, unload the second mould;
G repeats step 3 in step B), stop the power supply of each several parts such as fast fixture, mobile device, hydraulic system 2 successively.
The travelling table that the utility model comprises has concurrently fast, the die bottom plate 301 of accurately movement and quick, stable fast fixture, the quick change of mould and the object of fast-assembling can be completed by using method of the present utility model, meet requirement fast and efficiently on the production lines such as household electrical appliances auxiliary products, and under the prerequisite guaranteeing product on production line quality and precision, improve the production efficiency of production line, the production cost of this hydraulic press reduces by 15% than the cost with the hydraulic press of tonnage, and production efficiency improves 20%.
Embodiment 2
The present embodiment is with embodiment 1, and difference is, the screwed hole of slide mass upper surface is 1; Line slideway auxiliary 303 is 30mm with the distance of base 305 side.
Embodiment 3
This enforcement is with embodiment 1, and difference is, the screwed hole of slide mass upper surface is 8; Line slideway auxiliary 303 is 50mm with the distance of base 305 side.