CN213671646U - Connecting rod assembly of five-station cold forging punch press - Google Patents

Abstract

The utility model provides a link assembly of five station cold forging punches machine is provided with link assembly between eccentric wheel and the slider, link assembly includes back shaft, last connecting rod, universal driving shaft and lower connecting rod, the back shaft is fixed to be set up in the frame, go up connecting rod upper portion and rotate to be connected in the back shaft, go up connecting rod lower part and lower connecting rod upper portion cross interlock rotation connect in the universal driving shaft, the universal driving shaft is connected with the eccentric wheel cooperation, lower connecting rod lower part is connected with the slider rotation, this link assembly structural stability is strong, be difficult to warp the damage.

Description

Connecting rod assembly of five-station cold forging punch press

Technical Field

The application relates to the technical field of machining equipment, in particular to a five-station cold forging punch press.

Background

The design principle of the punch is that circular motion is converted into linear motion, a main motor drives a flywheel, a clutch drives a gear, a crankshaft (or an eccentric gear), a connecting rod and the like to rotate, so that the linear motion of a sliding block is achieved, and the motion from the main motor to the connecting rod is circular motion.

The connecting rod and the sliding block need to have a transfer point of circular motion and linear motion, and the design of the connecting rod and the sliding block is roughly provided with two mechanisms, one is spherical, and the other is pin-shaped (cylindrical), and the circular motion is converted into the linear motion of the sliding block through the mechanism. Since the press presses the material to plastically deform the material to obtain a desired shape and accuracy, a set of dies (divided into an upper die and a lower die) must be fitted to the material, the material is placed therebetween, the press presses the material to deform the material, and a reaction force caused by a force applied to the material during the process is absorbed by a mechanical body of the press.

Because the processing station is more, the weight of slider just is heavier more, and the gravity and the reaction force that the connecting rod received are just bigger, so current punch press all is three station designs usually, and machining efficiency is high inadequately, and current mould and liftout mechanism all formula designs as an organic whole simultaneously need wholly dismantle when maintaining the change, and is not convenient enough.

Therefore, how to upgrade the existing punching machine to overcome the above problems is a problem to be solved by those skilled in the art.

Disclosure of Invention

An object of this application is to provide one kind can carry out five stations simultaneously and forge and press, and is high-efficient stable, and liftout mechanism and die holder subassembly are modularized design, and convenient five station cold forging punches machine is maintained in the installation.

Another aim at of this application provides a structural stability is strong, is difficult to the link assembly of five station cold forging punches that warp the damage.

Still another aim at of this application provides one kind can change single mould alone, dismantles the simple quick modularization die holder of five station cold forging punches of installing, stable in structure.

Still another aim at of this application provides a linkage simple structure is stable, and the crank can be dismantled, and convenient five station cold forging punch press's liftout mechanisms are maintained in the installation.

In order to achieve the above purposes, the technical scheme adopted by the application is as follows: a five-station cold forging punch press comprises a machine frame, wherein a driving mechanism, a die holder assembly and a material ejecting mechanism are arranged on the machine frame, the driving mechanism controls the die holder assembly to move, the material ejecting mechanism carries out material ejecting operation on the die holder assembly, the driving mechanism comprises a motor, a flywheel, a main shaft, a clutch, a brake, an eccentric wheel and a sliding block, the clutch and the brake are respectively arranged at two ends of the main shaft, the flywheel is rotationally arranged on the main shaft and is controlled by the clutch in a matching way, the main shaft is connected with the eccentric wheel in a matching way, the motor drives the flywheel to rotate, the eccentric wheel is enabled to rotate through the main shaft, a connecting rod assembly is arranged between the eccentric wheel and the sliding block, the connecting rod assembly comprises a supporting shaft, an upper connecting rod, a linkage shaft and a lower connecting rod, the supporting shaft is, the upper part of the upper connecting rod is rotatably connected to the supporting shaft, the lower part of the upper connecting rod and the upper part of the lower connecting rod are in cross meshing and are rotatably connected to the linkage shaft, the linkage shaft is connected with the eccentric wheel in a matching manner, and the lower part of the lower connecting rod is rotatably connected with the sliding block;

the die holder assembly comprises an upper die holder and a lower die holder, the upper die holder is arranged at the bottom of the sliding block, the lower die holder is arranged below the upper die holder in a matched mode, the lower die holder comprises a lower die fixing seat and a plurality of lower die sub-holders, the lower die sub-holders are detachably arranged on one side of the lower die fixing seat, and die mounting grooves which are matched with each other are formed in the lower die fixing seat and the lower die sub-holders;

the ejection mechanism comprises a lower ejector, the lower ejector is arranged below the lower die base, the lower ejector comprises a rocker arm assembly, an ejection shaft seat and a lower ejection rod, the rocker arm assembly is linked with the eccentric wheel to control the ejection shaft seat to rotate, a plurality of detachable cranks are arranged on the ejection shaft seat in a rotating mode, and the cranks can be controlled to eject the lower ejection rod into the die mounting groove.

Specifically, the rocker arm assembly comprises a cam, a long-handle rocker arm, a rocker arm shaft and a short-handle rocker arm, the middle of the long-handle rocker arm is rotatably arranged on the rack, the cam rotates along with the eccentric wheel and periodically pushes the cam to the upper end of the long-handle rocker arm to enable the long-handle rocker arm to rotate and drive the rocker arm shaft to move, one end of the short-handle rocker arm is rotatably connected with one end of the rocker arm shaft, and the other end of the short-handle rocker arm is fixedly connected with the material ejecting shaft seat.

Specifically, be provided with installation breach and fixed connecting rod on the liftout axle bed, fixed connecting rod can dismantle connect in the installation breach to establish ties the crank, adjacent two still be provided with the detachable fixed block between the crank, the fixed block with the cooperation of liftout axle bed is fixed connecting rod.

As improvement, two adjacent lower mould branch seats are matched and provided with a screw rod installation groove, and the lower mould fixing seat is provided with an installation hole matched with the screw rod installation groove.

As an improvement, the outer side of the lower die sub-seat is provided with a fixing screw hole which is downwards inclined and communicated to the die mounting groove.

As an improvement, a driving connecting rod is arranged in the middle of the linkage shaft, one end of the driving connecting rod is connected with the upper connecting rod and the lower connecting rod in an occluded mode, and the other end of the driving connecting rod is connected with the eccentric wheel.

As an improvement, the other end of the rocker arm shaft is rotatably connected with the rack and is provided with an oil telescopic device.

As an improvement, a table disc is arranged below the lower die base, and a guide post for guiding the sliding block and an ejection channel for the lower ejection rod to pass through are arranged on the table disc.

As an improvement, the ejecting mechanism further comprises an upper ejector, the upper ejector is fixedly arranged below the sliding block, the upper ejector comprises an upper ejector rod, and when the sliding block ascends, the upper ejector rod can extend into the upper die base.

As an improvement, two sides of the sliding block are provided with balance cylinders.

Compared with the prior art, the application has the advantages that:

1. because link assembly is the biggest part of bearing pressure, in order to increase stability, set up lower connecting rod and upper connecting rod into the cross interlock and rotate the connection, increase link assembly's stability, and follow five stations that three stations shifted, to avoid the increase of lower connecting rod weight to lead to the punch press life-span to descend, the fault rate uprises, changes lower connecting rod into disconnect-type design to use the cooperation of driving connecting rod and upper connecting rod to fix lower connecting rod, guaranteed stability when lightening.

2. Change fixed integral type die holder, become the lower mould fixing base of fixed setting and can dismantle the lower mould of separation alone and divide the seat, a lower mould divides the seat to install and can form a die holding groove to the lower mould fixing base on, uses the cooperation installation between the adjacent lower mould divides the seat, can guarantee installation accuracy and stability when easy operation.

3. With crank and liftout axle bed separation setting, realize dismantling the connection through the cooperation of fixed connecting rod and fixed block, can carry out single change to the crank, reduce cost increases efficiency, and the rocking arm subassembly has also been simplified to can realize the interdynamic of rocking arm axle and cam through a long handle rocking arm, reduce the too much stability decline that probably causes of linkage structure.

Drawings

FIG. 1 is a right side internal schematic view of a preferred embodiment according to the present application;

FIG. 2 is a schematic front internal structure view according to a preferred embodiment of the present application;

FIG. 3 is a schematic illustration of the internal structure of the left side according to a preferred embodiment of the present application;

FIG. 4 is a rear internal structural view in accordance with a preferred embodiment of the present application;

FIG. 5 is a cross-sectional view of the lower die holder according to a preferred embodiment of the present application;

FIG. 6 is a schematic view of the overall construction of the lower die holder according to a preferred embodiment of the present application;

FIG. 7 is a schematic illustration of the overall construction of a rocker arm assembly according to a preferred embodiment of the present application;

FIG. 8 is a structural view of a jacking shaft seat according to a preferred embodiment of the present application;

FIG. 9 is a top view of a jacking shaft seat according to a preferred embodiment of the present application.

In the figure: 1. a frame; 2. a drive mechanism; 21. a motor; 22. a flywheel; 23. a main shaft; 24. a clutch; 25. a brake; 26. an eccentric wheel; 27. a slider; 28. a connecting rod assembly; 281. a support shaft; 282. an upper connecting rod; 283. a linkage shaft; 284. a lower connecting rod; 285. a drive link; 3. a die holder assembly; 31. an upper die holder; 32. a lower die holder; 321. a lower die fixing seat; 3211. mounting holes; 322. separating the lower die; 3221. a screw rod mounting groove; 3222. fixing screw holes; 323. a mold mounting groove; 4. a material ejecting mechanism; 41. a lower ejector; 411. a rocker arm assembly; 4111. a cam; 4112. a long-handled rocker arm; 4113. a rocker shaft; 4114. a short-handled rocker arm; 4115. an oil liquid telescopic device; 412. a material ejecting shaft seat; 4121. installing a notch; 413. a lower ejector rod; 414. a crank; 415. fixing the connecting rod; 416. a fixed block; 42. feeding a material ejector; 421. feeding a material pushing rod; 5. a table plate; 51. a guide post; 52. a material ejecting channel; 6. and (4) balancing the cylinder.

Detailed Description

The following description is presented to disclose the application and to enable any person skilled in the art to practice the application. The preferred embodiments in the following description are given by way of example only, and other obvious variations will occur to those skilled in the art.

In the description of the present application, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., it is indicated that the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and it is only for convenience of describing the present application and simplifying the description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be construed as limiting the specific scope of protection of the present application.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The present application is further described with reference to the accompanying drawings:

as shown in fig. 1 to 4, a preferred embodiment of the present application includes a frame 1, a driving mechanism 2, a die holder assembly 3 and an ejecting mechanism 4 are disposed on the frame 1, the driving mechanism 2 controls the movement of the die holder assembly 3, and the ejecting mechanism 4 ejects the die holder assembly 3.

The driving mechanism 2 comprises a motor 21, a flywheel 22, a main shaft 23, a clutch 24, a brake 25, an eccentric wheel 26 and a slide block 27, wherein the clutch 24 and the brake 25 are respectively arranged at two ends of the main shaft 23 to control the rotation and the braking of the main shaft 23, the flywheel 22 is rotatably arranged on the main shaft 23 and is cooperatively controlled by the clutch 24, the main shaft 23 is cooperatively connected with the eccentric wheel 26, the motor 21 drives the flywheel 22 to rotate, and the eccentric wheel 26 rotates through the main shaft 23, a connecting rod assembly 28 is arranged between the eccentric wheel 26 and the slide block 27, the connecting rod assembly 28 comprises a supporting shaft 281, an upper connecting rod 282, a linkage shaft 283 and a lower connecting rod 284, the supporting shaft 281 is fixedly arranged on the frame 1, the upper part of the upper connecting rod 282 is rotatably connected with the supporting shaft 281, the lower part of the upper connecting rod 282 and the upper part of the lower connecting rod 284 are, the cross-engagement arrangement of the upper and lower links 282, 284 connected to the linkage shaft 283 provides greater stability and structural strength than conventional connections, and is suitable for use on a stamping machine with a greater number of stations.

The middle part of the linkage shaft 283 is provided with a driving connecting rod 285, one end of the driving connecting rod 285 is meshed with the upper connecting rod 282 and the lower connecting rod 284, the other end of the driving connecting rod 285 is connected with the eccentric wheel 26, the lower connecting rod 284 is divided into two-section type symmetrical structures through the driving connecting rod 285, the whole weight of the lower connecting rod 284 can be reduced, the load of the connecting rod assembly 28 is reduced, the service life of parts is prolonged, the driving connecting rod 285 is arranged in the middle part and is matched with the lower connecting rods 284 at two sides, the stability is improved, and the shifting is.

Liftout mechanism 4 includes liftout 41 down, liftout 41 sets up in lower die holder 32 below down, liftout 41 includes rocking arm subassembly 411 down, liftout axle bed 4112 and lower liftout pole 413, rocking arm subassembly 411 and the linkage of eccentric wheel 26, control liftout axle bed 4112 rotates, it is provided with a plurality of detachable cranks 414 to rotate on the liftout axle bed 4112, controllable liftout pole 413 top of crank 414 is to the mould mounting groove 323 in, compare in the fixed connection of liftout axle bed 4112 and crank 414 of traditional structure, crank 414 becomes to dismantle the setting and can make things convenient for solitary maintenance and change, when being used in the punching machine of different quantity stations, only need pull down or install the crank 414 that corresponds quantity, can carry out the adaptation and use, the suitability is strong, comparatively save the cost.

The ejecting mechanism 4 further comprises an upper ejector 42, the upper ejector 42 is fixedly arranged below the sliding block 27, the upper ejector 42 comprises an upper ejector rod 421, when the sliding block 27 ascends, the upper ejector rod 421 can extend into the upper die base 31, and by means of the movement of the sliding block 27, products clamped in the upper die base 31 can be blocked, so that the products can be separated.

And the balance cylinders 6 are arranged on two sides of the sliding block 27, so that the running stability of the sliding block 27 is improved, and the processing precision is improved.

Lower die holder 32 below is provided with platen 5, is provided with guide pillar 51 and the liftout passageway 52 that liftout pole 413 passes through under the confession of guide slider 27 on the platen 5, and guide pillar 51 can increase slider 27 whereabouts stability and accurate nature of in-process, and liftout passageway 52 can conveniently be down liftout pole 413 through realizing the liftout.

As shown in fig. 5 to 6, the die holder assembly 3 includes an upper die holder 31 and a lower die holder 32, the upper die holder 31 is disposed at the bottom of the slider 27, the lower die holder 32 is disposed below the upper die holder 31 in a matching manner, when the slider 27 descends, the upper die holder 31 can be in stamping forging with the lower die holder 32, the lower die holder 32 includes a lower die fixing seat 321 and a plurality of lower die sub-seats 322, the lower die sub-seats 322 are detachably disposed at one side of the lower die fixing seat 321, the lower die fixing seat 321 and the lower die sub-seats 322 are provided with mutually matched die mounting grooves 323, the lower die sub-seats 322 can be detached separately, and each lower die sub-seat 322 can be combined with the lower die fixing seat 321 to form a die mounting groove 323, so.

Screw rod mounting groove 3221 has been seted up in the cooperation between two adjacent lower mould branch seats 322, is provided with the mounting hole 3211 who cooperates screw rod mounting groove 3221 on the lower mould fixing base 321, and two screw rod mounting grooves 3221 can make up and form the screw rod mounting hole, and cooperate with mounting hole 3211 on the lower mould fixing base 321, can enough play the fixed action, also can regard as location structure to use, simplify the structure, easy to assemble.

The outer side of the lower die sub-base 322 is provided with a fixing screw hole 3222 which is downward inclined to the die mounting groove 323, a die can be mounted in the die mounting groove 323, the die can be fixed through the fixing screw hole 3222, and the fixing screw hole 3222 which is obliquely arranged can effectively prevent the die from sliding and increase the stability.

As shown in fig. 7, the rocker arm assembly 411 includes a cam 4111, a long-handle rocker arm 4112, a rocker arm shaft 4113 and a short-handle rocker arm 4114, the middle of the long-handle rocker arm 4112 is rotatably disposed on the rack 1, the cam 4111 rotates along with the eccentric wheel 26, and periodically pushes the long-handle rocker arm 4112 to the upper end of the long-handle rocker arm 4112, so that the long-handle rocker arm 4112 rotates, when the long-handle rocker arm 4112 rotates, the rocker arm shaft 4113 is driven to move, one end of the short-handle rocker arm 4114 is rotatably connected with one end of the rocker arm shaft 4113, the other end of the short-handle rocker arm 4114 is fixedly connected with the material ejecting shaft seat 4112, when the rocker arm shaft 4113 moves, the short-handle rocker arm 4114 rotates along with the shaft 4113, and drives the material ejecting shaft seat 4112 to rotate, the material ejecting shaft seat 4112 drives the crank 414 to rotate, the material ejecting rod.

The other end of the rocker shaft 4113 is rotatably connected with the rack 1, and an oil telescopic device 4115 is arranged, so that the upward material ejection process is softer, and the collision and abrasion to a product are reduced.

As shown in fig. 8 to 9, an installation notch 4121 and a fixed connecting rod 415 are arranged on the material ejecting shaft seat 4112, the fixed connecting rod 415 is detachably connected in the installation notch 4121 and is connected with the crank 414 in series, a detachable fixed block 416 is further arranged between two adjacent cranks 414, the fixed block 416 is matched with the material ejecting shaft seat 4112 to fix the fixed connecting rod 415, all the cranks 414 can be fixed through one fixed connecting rod 415, the fixed connecting rod 415 is fixed by additionally arranging the fixed block 416, and the cranks 414 are prevented from sliding, so that the stability is high, and the installation and the disassembly are simple.

The operation principle is as follows: the motor 21 drives the flywheel 22 to rotate through a belt, the flywheel 22 drives the main shaft 23 to rotate, the flywheel 22 is controlled through a clutch 24 and a brake 25 to realize the change and stop of the rotating speed, the main shaft 23 drives the eccentric wheel 26 to rotate, the linkage shaft 283 is pulled by the rotation of the eccentric wheel 26, so that the height of the lower connecting rod 284 can be changed, the slide block 27 is driven to slide up and down, when the slide block 27 ascends, the ejector 42 does not move, a product in the upper die base 31 is ejected down by the ejector 42, meanwhile, the crank 414 on the ejector shaft base 4112 can lift the lower ejector 413 to be ejected into the lower die base 32, and the product in the lower die base 32 is also subjected to demoulding; when the device stops, the lower die sub-seat 322 on the lower die seat 32 can be detached individually, so that the die can be replaced and maintained conveniently.

The foregoing shows and describes the general principles, essential features, and advantages of the application. It will be understood by those skilled in the art that the present application is not limited to the embodiments described above, which are merely illustrative of the principles of the application, but that various changes and modifications may be made without departing from the spirit and scope of the application, and these changes and modifications are intended to be within the scope of the application as claimed. The scope of protection claimed by this application is defined by the following claims and their equivalents.

Claims (3)

1. The utility model provides a five station cold forging punch press's link assembly, includes the frame, be provided with actuating mechanism in the frame, actuating mechanism includes motor, flywheel, main shaft, clutch, brake, eccentric wheel and slider, the clutch with the brake set up respectively in the main shaft both ends, the flywheel rotate set up in on the main shaft by clutch cooperation control, the main shaft with the eccentric wheel cooperation is connected, the motor drives the flywheel rotates, and passes through the main shaft makes the eccentric wheel rotates its characterized in that: a connecting rod assembly is arranged between the eccentric wheel and the sliding block and comprises a supporting shaft, an upper connecting rod, a linkage shaft and a lower connecting rod, the supporting shaft is fixedly arranged on the rack, the upper portion of the upper connecting rod is rotatably connected to the supporting shaft, the lower portion of the upper connecting rod and the upper portion of the lower connecting rod are in cross meshing rotation connection with the linkage shaft, the linkage shaft is connected with the eccentric wheel in a matched mode, and the lower portion of the lower connecting rod is rotatably connected with the sliding block.

2. The connecting rod assembly of the five-station cold forging press according to claim 1, wherein: and a driving connecting rod is arranged in the middle of the linkage shaft, one end of the driving connecting rod is connected with the upper connecting rod and the lower connecting rod in an occluded manner, and the other end of the driving connecting rod is connected with the eccentric wheel.

3. The connecting rod assembly of the five-station cold forging press according to claim 1, wherein: and balance cylinders are arranged on two sides of the sliding block.

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