CN109807274B - Water-cooling quenching press - Google Patents
Water-cooling quenching press Download PDFInfo
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- CN109807274B CN109807274B CN201910196718.5A CN201910196718A CN109807274B CN 109807274 B CN109807274 B CN 109807274B CN 201910196718 A CN201910196718 A CN 201910196718A CN 109807274 B CN109807274 B CN 109807274B
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- 238000001816 cooling Methods 0.000 title claims abstract description 15
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- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 2
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Abstract
The invention relates to the technical field of presses. Aims to provide a water-cooling quenching press machine capable of improving quenching quality. The technical scheme adopted by the invention is as follows: a water-cooling quenching press comprises a square frame, wherein an opening in the middle of the frame forms a working area; an upper sliding block and a lower sliding block are arranged in the working area; the bottom surface of the upper sliding block and the top surface of the lower sliding block are respectively provided with an upper die and a lower die; a plurality of cooling water channels which are parallel to each other are uniformly arranged in the upper die and the lower die; be provided with the water diversion post in the cooling water course, the water diversion post includes the cylinder that extends along cooling water course length direction and sets up the water diversion ridge on the cylinder is global, the water diversion ridge extends along the length direction of cylinder, and evenly is provided with a plurality of turbulent holes along the length direction of water diversion ridge on the water diversion ridge. The invention can rapidly cool and quench the hot forged and pressed workpiece, improves the quenching efficiency and ensures the quality of the workpiece.
Description
Technical Field
The invention relates to the technical field of presses, in particular to a water-cooling quenching press.
Background
The press machine can be widely applied to the processes of cutting, punching, blanking, bending, riveting, forming and the like. The metal is processed into parts by applying a strong pressure to the metal blank to cause plastic deformation and fracture of the metal. The existing press generally comprises a frame and a workbench (lower die) arranged on the frame, an upper die is arranged above the workbench and driven by a hydraulic cylinder or a motor, a workpiece to be processed is placed on the workbench, the upper die moves downwards to apply pressure to the workpiece, and therefore forging and pressing are completed. However, the existing press machine has some problems and needs to be improved. Problem 1, for some workpieces, because they all have convex deformation in the up-down direction, that is, some convex upward, some convex downward, adopt conventional press to process, through practice verification, if adopt once forming, its forging and pressing quality often is relatively poor, appear splits, structural strength reduce scheduling problem. Or after the bulge in one direction is forged and pressed, the bulge in the other direction is forged and pressed again, so that the working procedures are complicated, and the production efficiency is low. Problem 2, after the workpiece is forged and pressed, the existing press usually utilizes the cylinder arranged at the bottom of the workbench to extend upwards to push the ejector rod to jack up and hold the workpiece, so that the workpiece is convenient to grab. However, when the weight of the workpiece is large, the small cylinder cannot meet the requirement of thrust, and when the large cylinder ejects the workpiece, the workpiece is easily damaged. Problem 3, current forging press when carrying out hot forging, generally can set up the heat transfer water course on the last mould of forging press and bed die, after hot pressing is accomplished, lets in cooling water in the heat transfer water course, cools down the quenching to the work piece. However, the heat exchange water channel adopted by the existing forging press is usually a straight through hole, the mode is too simple, the cooling and quenching effects are not ideal enough, and the quality of workpieces is influenced.
Disclosure of Invention
The invention aims to provide a water-cooling quenching press capable of improving quenching quality.
In order to achieve the purpose of the invention, the technical scheme adopted by the invention is as follows: a water-cooling quenching press comprises a square frame, wherein an opening in the middle of the frame forms a working area; an upper sliding block and a lower sliding block are arranged in the working area; vertical sliding rails are arranged on the machine frame corresponding to the left side wall and the right side wall of the working area, and the left side and the right side of the upper sliding block and the right side of the lower sliding block extend into the sliding rails and are in sliding fit with the sliding rails; the bottom surface of the upper sliding block and the top surface of the lower sliding block are respectively provided with an upper die and a lower die; the top of the frame is provided with a hydraulic telescopic cylinder, and the output end of the hydraulic telescopic cylinder faces downwards and is fixedly connected with the upper sliding block; the upper sliding block is in transmission connection with the lower sliding block through a linkage device;
a plurality of cooling water channels which are parallel to each other are uniformly arranged in the upper die and the lower die, and the cooling water channels extend along the front-back direction of the upper die and the lower die; one end of the cooling water channel is connected with the water inlet main pipe through the water inlet branch pipe, and the other end of the cooling water channel is connected with the water outlet main pipe through the water outlet branch pipe; be provided with the water diversion post in the cooling water course, the water diversion post includes the cylinder that extends along cooling water course length direction and sets up the water diversion ridge on the cylinder is global, the water diversion ridge extends along the length direction of cylinder, and evenly is provided with a plurality of turbulent holes along the length direction of water diversion ridge on the water diversion ridge.
Preferably, the water inlet main pipe and the water outlet main pipe are both pressure-bearing hoses.
Preferably, the water dividing column is made of copper alloy or aluminum alloy.
Preferably, the water inlet main pipe is connected with the high-level water tank, the water outlet main pipe is connected with the reuse water tank, and the water outlet main pipe is provided with a water pump.
Preferably, the linkage device comprises a pulley force application mechanism, a transition mechanism, a lever force application mechanism and a pushing frame which are sequentially arranged along the power transmission direction; the pushing frame is positioned below the lower sliding block, the lever force-applying mechanism is positioned in the rack below the pushing frame, the pulley force-applying mechanism is positioned in the rack on one side of the working area, and the transition mechanism is positioned between the lever force-applying mechanism and the pulley force-applying mechanism;
the pulley force application mechanism comprises a vertical guide rail and a lifting block which is arranged on the guide rail and is in sliding fit with the guide rail; the guide rail is fixedly arranged on the rack, and the lifting block is provided with an upper movable pulley and a lower movable pulley; one side of the upper sliding block, which is close to the guide rail, is fixedly provided with a connecting block, and the connecting block passes through a sliding opening arranged on the rack and extends into the rack; an upper fixed pulley and a lower fixed pulley are fixedly arranged in the machine frame above and below the guide rail; the pulley stress application mechanism further comprises an upper pull rope and a lower pull rope, one end of the upper pull rope is fixed with the connecting block, and the other end of the upper pull rope is S-shaped, sequentially bypasses the upper fixed pulley and the upper movable pulley and is fixed on the upper rack; one end of the lower pull rope is fixed with the connecting block, and the other end of the lower pull rope sequentially bypasses the lower fixed pulley and the lower movable pulley in an S shape and is fixed on the lower rack;
the transition mechanism comprises a vertical transition connecting rod and a first guide sleeve, the first guide sleeve is fixedly connected with the rack, and the transition connecting rod penetrates through the first guide sleeve and is in sliding fit with the first guide sleeve; the upper end of the transition connecting rod is fixedly connected with the lifting block, and the lower end of the transition connecting rod is in rolling and sliding fit with one end of a swing lever of the lever stress application mechanism.
Preferably, the pushing frame comprises a plurality of vertical push rods, the upper ends of the push rods are fixedly connected with the lower sliding block, and the lower ends of the push rods extend into the rack and are fixedly connected with the cross rod; the lower part of the center of the cross rod is fixedly provided with a vertical main push rod, and the lower end of the main push rod is in rolling and sliding fit with a swing lever of the lever stress application mechanism.
Preferably, the lever force application mechanism comprises a proportion adjusting component and a swing lever arranged transversely; the proportion adjusting assembly comprises a hinge seat and four transverse guide rods which are arranged in a matrix arrangement mode, one end of each guide rod is fixed on the rack, and four guide holes matched with the guide rods are formed in the hinge seat and sleeved outside the guide rods through the guide holes; an electric push rod which stretches along the transverse direction is fixedly arranged on the rack on one side of the hinge seat, the output end of the electric push rod is fixedly connected with one surface of the hinge seat, and a hinge lug is arranged on the other surface of the hinge seat; one end of the swing lever is hinged with the hinge lug, the middle part of the swing lever is in rolling and sliding fit with the main push rod, and the other end of the swing lever extends to the lower part of the transition connecting rod and is in rolling and sliding fit with the transition connecting rod.
Preferably, a first strip-shaped through hole is formed in the swing lever along the length direction of the swing lever, a second strip-shaped through hole is formed in the top of the swing lever along the length direction of the swing lever, and the first strip-shaped through hole and the second strip-shaped through hole are communicated with each other; two rolling pins are arranged on the front side and the rear side of the lower end of the transition connecting rod and the lower end of the main push rod, the transition connecting rod and the main push rod penetrate into the swing lever through the second strip-shaped through hole, and the two rolling pins are respectively arranged in the first strip-shaped through hole in a penetrating mode.
Preferably, the bottom of the hinged seat is provided with a supporting leg, and the lower end of the supporting leg is provided with a supporting roller; the bottom surface of the rack is provided with a limiting groove extending along the left-right direction, and the supporting rollers are positioned in the limiting groove.
Preferably, the two sides of the main push rod are also provided with auxiliary push rods, each auxiliary push rod comprises an outer pipe and an inner rod which are matched with each other, the upper end of each inner rod extends into the outer pipe, the front side and the rear side of the lower end of each inner rod are also provided with rolling pins, and the rolling pins penetrate through the first strip-shaped through holes and are in rolling and sliding fit with the swing levers; the inner rod is sleeved with a first spiral spring between the retaining rings, and the upper end and the lower end of the first spiral spring are fixedly connected with the retaining rings respectively.
The beneficial effects of the invention are concentrated and expressed as follows: the quenching device can rapidly cool and quench the hot forged and pressed workpiece, improves the quenching efficiency and ensures the quality of the workpiece. Specifically, after hot forging and pressing are carried out, the die is closed and the pressure is maintained, cooling water is introduced into the cooling water channel, and the cooling water is used for rapidly cooling the upper die and the lower die so as to cool the workpiece. Because the cooling water channel is internally provided with the water diversion column, on one hand, the water diversion column can indirectly increase the contact area of the mold and the cooling water, so that the utilization rate of the cooling water is higher. On the other hand, the turbulence holes arranged on the water distribution ridges of the water distribution column can also improve the turbulence effect, so that cooling water can quickly finish cold and hot remixing in the heat absorption process, the cooling effect is improved, the workpiece is finally quenched efficiently and high-quality, and the quality of the workpiece is improved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of portion A of FIG. 1;
FIG. 3 is a view taken along line B-B of FIG. 2;
FIG. 4 is a view taken along line C-C of FIG. 1;
FIG. 5 is a schematic view of the hinge base;
figure 6 is a schematic structural view of the supporting uprights;
fig. 7 is a schematic structural view of a water separation column.
Detailed Description
The press shown in fig. 1-7 is improved in many ways to solve several problems of the existing press, so as to improve the comprehensive performance of the press. The improved press machine specifically solves the problems that the existing press machine can only perform one-way forging and pressing, the workpiece is easy to damage when the workpiece is ejected, the cooling and quenching effects on the workpiece are poor, and the like, and can be independently applied to the existing press machine or combined and applied to the existing press machine in any two or three directions.
The press machine comprises a square frame 1, wherein an opening in the middle of the frame 1 forms a working area 2, and the working area 2 is used as a main area for processing a workpiece. An upper sliding block 3 and a lower sliding block 4 are arranged in the working area 2, and as the name suggests, the upper sliding block 3 and the lower sliding block 4 are sliding blocks which can slide up and down in the working area 2. Regarding the guiding of the sliding block, the vertical sliding rail 5 is arranged on the rack 1 corresponding to the left side wall and the right side wall of the working area 2, and the left side and the right side of the upper sliding block 3 and the lower sliding block 4 extend into the sliding rail 5 and are in sliding fit with the sliding rail 5. An upper die 6 and a lower die 7 are respectively installed on the bottom surface of the upper sliding block 3 and the top surface of the lower sliding block 4, the upper die 6 and the lower die 7 are driven to be closed or opened through the upper sliding block 3 and the lower sliding block 4, so that a workpiece is forged and pressed, and the upper die 6 and the lower die 7 can be installed in various installation modes such as bolt connection and clamping connection. The top of frame 1 sets up hydraulic telescoping cylinder 8, hydraulic telescoping cylinder 8 self is prior art, and this place is no longer repeated, hydraulic telescoping cylinder 8's output down and with last slider 3 fixed connection for drive 3 lifts of top shoe. The upper sliding block 3 is in transmission connection with the lower sliding block 4 through a linkage device, and the power of the upper sliding block 3 is transmitted to the lower sliding block 4 through the linkage device, so that the lower sliding block 4 is driven to move, the die is opened and closed, and bidirectional forging and pressing are further achieved.
The linkage device has more specific structures, and can transmit force directly as long as the force can be transmitted. For example: a first rack is arranged on the upper sliding block 3 and meshed with a first gear; a second rack is arranged on the lower sliding block 4, the second rack is meshed with a second gear, and the first gear is meshed with the second gear; the sliding of the upper sliding block 3 is converted into the rotation of the first gear and drives the second gear, and the second gear converts the rotation into the movement of the second rack, so that the lower sliding block 4 is driven. Of course, other linkages are possible that serve the same purpose.
In order to ensure that the lower die 7 has enough upper jacking pressure, the linkage device has the function of force application and amplification on force, and comprises a pulley force application mechanism, a transition mechanism, a lever force application mechanism and a jacking frame which are sequentially arranged along the power transmission direction. The pulley stressing mechanism is located in the frame 1 on the side of the working area 2, on the left as shown in fig. 1, or indeed on the right, and it first amplifies the force in the manner of a moving pulley. The lever force-applying mechanism is positioned in the machine frame 1 below the pushing frame, and the lever mode is adopted to amplify the force again. The transition mechanism is positioned between the lever force application mechanism and the pulley force application mechanism and is used for connecting the pulley force application mechanism and the lever force application mechanism to realize power transmission of the pulley force application mechanism and the lever force application mechanism. The pushing frame is located below the lower sliding block 4, and under the action of the lever stress application mechanism, the pushing and pulling of the lower sliding block 4 are achieved, and then the lifting of the lower die 7 is achieved.
The specific structure of the pushing frame is more, but in order to realize stable pushing and pulling of the lower sliding block 4, as shown in fig. 1, the pushing frame comprises a plurality of vertical push rods 22, the upper ends of the push rods 22 are fixedly connected with the lower sliding block 4, and the lower ends of the push rods extend into the frame 1 and are fixedly connected with a cross rod 23. The lower part of the center of the cross rod 23 is fixedly provided with a vertical main push rod 24, and the lower end of the main push rod 24 and the swing lever 21 of the lever stress application mechanism form rolling and sliding fit. The rolling and sliding fit is a mode that the rolling and sliding fit is combined with each other, and the mode is that a wheel moves in a sliding groove, the wheel can roll, and the wheel can slide relative to the sliding groove. The roll-and-slip fit is per se prior art and will not be described further here.
As shown in fig. 1, the lever force application mechanism comprises a proportion adjusting component and a swing lever 21 which is transversely arranged, the proportion adjusting component is used for adjusting the force application proportion of the lever force application mechanism, and the force application proportion of the lever is related to the distance between a force application point and a fulcrum, so that the invention realizes the proportion adjustment of the force application by changing the position of the fulcrum. The proportion adjustment assembly comprises a movable hinge seat 25 and four transverse guide rods 26 in a matrix arrangement, one end of each guide rod 26 is fixed on the rack 1, and the other ends of the guide rods 26 are connected with each other through short rods, so that the guide rods 26 are mutually tied, and the structural strength is improved. The hinged seat 25 is provided with four guide holes 27 matched with the guide rods 26, the guide rods 26 are sleeved with the guide holes 27, and the guide rods 26 are used for guiding the movement of the hinged seat 25. An electric push rod 28 which stretches transversely is fixedly arranged on the frame 1 on one side of the hinge seat 25, the output end of the electric push rod 28 is fixedly connected with one surface of the hinge seat 25, and a hinge lug 29 is arranged on the other surface of the hinge seat 25. One end of the swing lever 21 is hinged with the hinge lug 29, the middle part of the swing lever forms rolling and sliding fit with the main push rod 24, and the other end of the swing lever extends to the lower part of the transition connecting rod 19 and forms rolling and sliding fit with the transition connecting rod 19.
As shown in fig. 2, the pulley force application mechanism includes a vertical guide rail 9 and a lifting block 10 disposed on the guide rail 9 and forming a sliding fit with the guide rail 9. As shown in fig. 3, the guide rail 9 and the elevator block 10 are in a sliding fit with a double dovetail groove, so that the elevator block 10 has better stability in sliding on the guide rail 9. The guide rail 9 is generally fixedly arranged on the frame 1 by means of bolt connection or welding, and the lifting block 10 is provided with an upper movable pulley 11 and a lower movable pulley 12. As shown in fig. 2, a connecting block 13 is fixedly arranged on one side of the upper sliding block 3 close to the guide rail 9, that is, the left side in the figure, the connecting block 13 passes through a sliding port 14 arranged on the frame 1 and extends into the frame 1, and the sliding port 14 is a vertical strip-shaped port matched with the connecting block 13. An upper fixed pulley 15 and a lower fixed pulley 16 are also fixedly arranged in the machine frame 1 above and below the guide rail 9. The pulley force-applying mechanism further comprises an upper pull rope 17 and a lower pull rope 18, one end of the upper pull rope 17 is fixed with the connecting block 13, and the other end of the upper pull rope 17 is S-shaped, sequentially bypasses the upper fixed pulley 15 and the upper movable pulley 11 and is fixed on the upper rack 1. One end of the lower pull rope 18 is fixed with the connecting block 13, and the other end of the lower pull rope is fixed on the lower frame 1 after sequentially passing around the lower fixed pulley 16 and the lower movable pulley 12 in an S shape. The invention drives the lifting block 10 to move upwards through the upper and lower pull ropes, the upper and lower movable pulleys and the upper and lower fixed pulleys, has good stepping stability and can double the force.
The transition mechanism comprises a vertical transition connecting rod 19 and a first guide sleeve 20, the first guide sleeve 20 is fixedly connected with the rack 1, and the transition connecting rod 19 penetrates through the first guide sleeve 20 and is in sliding fit with the first guide sleeve 20. The upper end of the transition connecting rod 19 is fixedly connected with the lifting block 10, and the lower end of the transition connecting rod is in rolling and sliding fit with one end of a swing lever 21 of the lever stress application mechanism.
In the use process of the invention, a workpiece is placed between the upper die 6 and the lower die 7. During forging and pressing, the hydraulic telescopic cylinder 8 extends out to drive the upper sliding block 3 and the upper die 4 to move downwards, the connecting block 13 on the upper sliding block 3 drives the upper movable pulley 11 and the lifting block 10 to move upwards through the upper pull rope 17, and then one end of the swing lever 21 of the lever stress application mechanism is pulled upwards through the transition connecting rod 19, and the swing lever 21 rotates around the hinge lug 29 on the hinge seat 25. The middle part of the swing lever 21 transmits power to the pushing frame, and the lower slider 4 and the lower mold 7 are pushed up by the pushing frame. The upper die 6 and the lower die 7 can carry out bidirectional forging on the workpiece, and the forging die is particularly suitable for forging the workpiece with the upper surface and the lower surface both of which are convexly deformed. Compared with the traditional one-way forging and pressing mode, the invention simplifies the working procedures and improves the production efficiency on the premise of ensuring the quality of the workpiece. Meanwhile, the linkage device adopts a mode of combining pulley stress application and lever stress application, so that the lower jacking force is greatly improved. The invention can also change the relative position of the hinge lug 29 and the abutting frame and the transition connecting rod 19 by pushing the hinge seat 25 to slide along the guide rod 26 through the electric push rod 28 when the swing lever 21 is in the horizontal state. The invention adjusts the lever fulcrum of the lever stress application mechanism, and the pulley stress application mechanism is matched for amplification, so that the adjusting range is extremely large, for example: the independent force application proportion of the lever force application mechanism is 0-3 times, and after the lever force application mechanism is matched with the pulley force application mechanism, the integral force application proportion of the linkage device is 0-6 times, and the range is larger. When the upper die 6 and the lower die 7 of the invention are opened, the hydraulic telescopic cylinder 8 drives the upper slide block 3 and the upper die 6 to move upwards, and the working steps are just opposite to the forging and pressing steps.
Regarding the specific rolling and sliding fit manner of the swing lever 21, the main push rod 24 and the transition link 19, as shown in fig. 1 and 4, a first strip-shaped through hole 30 is arranged on the swing lever 21 along the length direction of the swing lever 21, a second strip-shaped through hole 31 is arranged on the top of the swing lever 21 along the length direction of the swing lever 21, the first strip-shaped through hole 30 and the second strip-shaped through hole 31 are mutually communicated, and the shape of the combination of the first strip-shaped through hole 30 and the second strip-shaped through hole 31 on the cross section of the swing lever 21 is actually inverted T-shaped. Two rolling pins 32 are arranged on the front side and the rear side of the lower ends of the transition connecting rod 19 and the main push rod 24, the transition connecting rod 19 and the main push rod 24 penetrate into the swing lever 21 through a second strip-shaped through hole 31, and the two rolling pins 32 are respectively arranged in the first strip-shaped through hole 30 in a penetrating mode. The roll pin 32 itself can both rotate and slide along the first through-hole 31. By the design of the swing lever 21, the stability of the invention is better, and the parts can be prevented from falling out. In order to reduce the abrasion of the rolling pin 32 and the swing lever 21, as shown in fig. 4, a self-lubricating copper bush 33 matched with the first strip-shaped through hole 30 is arranged on the inner wall of the first strip-shaped through hole 30.
In addition, in order to further improve the performance, an inverted triangle reinforcing plate 34 extending along the length direction of the swing lever 21 is provided at the bottom of the swing lever 21 to reinforce the swing lever 21.
The bottom of the hinged seat 25 is provided with a supporting leg 35, and the lower end of the supporting leg 35 is provided with a supporting roller 36. The bottom surface of the frame 1 is provided with a limiting groove 37 extending along the left-right direction, and the supporting roller 36 is located in the limiting groove 37 and plays a role in sharing the stress of the guide rod 26.
The ejector rod 22 is further sleeved with a second guide sleeve 42, and the second guide sleeve 42 is fixedly connected with the rack 1 to play a role in improving the stability of the ejector rod 22.
A plurality of supporting blocks 43 for supporting the lower sliding block 4 are uniformly arranged on the surface of the machine frame 1 at the lower part of the working area 2. The support blocks 43 can assist in supporting the lower slide 4 and the lower mold 7 when the ejector pins 22 are retracted downward, thereby reducing the burden on the linkage.
In addition, if the main push rod 24 is used as a force transmission component of the thrust frame and lever forcing structure, the stress of the main push rod 24 is too large when the requirement of forging pressure is high. For the purpose of the present invention, as shown in fig. 1 and 4, the two sides of the main push rod 24 are further provided with an auxiliary push rod, the auxiliary push rod comprises an outer tube 38 and an inner rod 39 which are matched with each other, the upper end of the inner rod 39 extends into the outer tube 38, the front side and the rear side of the lower end of the inner rod 39 are also provided with rolling pins 32, and the rolling pins 32 penetrate through the first strip-shaped through holes 30 and form a rolling and sliding fit with the swing lever 21. The circumferential surface of the lower end of the outer pipe 38 and the circumferential surface of the middle part of the inner rod 39 are both provided with retaining rings 40, a first helical spring 41 is sleeved outside the inner rod 39 between the retaining rings 40, and the upper end and the lower end of the first helical spring 41 are fixedly connected with the retaining rings 40 respectively. The auxiliary push rod can play the effect of auxiliary stay, with the partial stress transfer of main push rod 24 to the auxiliary push rod on for the more stable of top pushing frame. The sub-pushrod has a telescopic structure with a first coil spring 41, and can be adaptively adjusted according to the angle of the swing lever 21.
In addition, although the linkage device of the present invention is provided with one set in fig. 1, in order to further improve the stability, the linkage device is provided with two sets, the two sets of linkage devices are symmetrical left and right in the working area 2, the symmetrical distribution means that the projection on the front view plane is completely symmetrical, but the two sets of linkage devices are staggered on the front and rear sides, so as to avoid mutual interference.
From the angle that the workpiece is easy to damage when being ejected, the invention also discloses a brand-new scheme, and the form of ejecting the workpiece downwards adopted by the conventional press machine is abandoned. As shown in fig. 1, still evenly be provided with a plurality of support poles 44 on the frame 1 of workspace 2 bottom, the lower extreme that supports pole 44 is fixed on frame 1, it is provided with the multiunit and supports pole 44 matched with hole of stepping down to correspond on lower slider 4 and the bed die 7, support pole 44 and wear to establish in the hole of stepping down, and the setting in the hole of stepping down is with do not influence the mould and is accurate to the forging and pressing of work piece, can set up many support poles 44. In use, a workpiece is placed on the supporting upright rod 44, and the upper die 6 and the lower die 7 are closed to forge and press the workpiece. After opening the mould, the upper mould 6 and the lower mould 7 are moved back up and down, the workpiece still being supported on the support uprights 44.
According to the invention, the traditional mode that the ejector rod is driven by the air cylinder to eject the workpiece upwards is abandoned, the workpiece is directly supported by the support upright rod 44, and the workpiece is in a suspended support state after the upper die 6 and the lower die 7 are retreated, so that the workpiece can be conveniently and quickly grabbed. Meanwhile, as a plurality of supporting upright rods 44 are adopted and no workpiece is jacked up, the workpiece can be excellently prevented from being damaged. In addition, as shown in fig. 6, the supporting upright 44 of the present invention includes a hollow rod 45 and a solid rod 46 which are engaged with each other, and the upper end of the solid rod 46 is inserted into the hollow rod 45. The circumferential surfaces of the bottoms of the solid rod 46 and the hollow rod 45 are respectively provided with an annular blocking rib 47, a second helical spring 48 is sleeved outside the solid rod 46 between the blocking ribs 47, and two ends of the second helical spring 48 are fixedly connected with the blocking ribs 47 respectively. The supporting upright rod 44 is of a sleeve type structure and has a telescopic margin, and when the die is closed, the supporting upright rod can be automatically retracted into the lower die 7 through the abdicating hole under the extrusion of the upper die 6, so that the interference on forging and pressing is avoided.
With regard to the manner of mounting the supporting uprights 44, the lower end of said solid bar 46 is normally bolted to the frame 1, facilitating the increase, decrease and change of the position of the supporting uprights 44 according to the different moulds. Of course, it is also possible to mount the supporting uprights 44 by welding, but this is relatively less versatile since the supporting uprights 44 cannot be replaced.
In addition, in order to facilitate loading and unloading and grabbing of the workpiece, as shown in fig. 6, a solid section is arranged at the top of the hollow rod 45, and a universal ball 49 is arranged at the top end of the solid section.
In the process of forging and pressing the workpiece, in order to improve the quality of the workpiece, a hot forging and pressing mode is often adopted, namely, the workpiece is heated to a high-temperature state, then forging and pressing are carried out, and after the forging and pressing are finished, the workpiece is subjected to pressure maintaining, temperature reducing and quenching. Although a cooling water channel is also arranged in the traditional press machine die, the cooling water channel is small in quantity and too simple in structure, so that the cooling effect on the workpiece is poor.
Therefore, a plurality of cooling water channels 50 which are parallel to each other are uniformly arranged in the upper die 6 and the lower die 7, and the cooling water channels 50 extend along the front-back direction of the upper die 6 and the lower die 7. One end of the cooling water channel 50 is connected with the water inlet main pipe through the water inlet branch pipe, and the other end is connected with the water outlet main pipe through the water outlet branch pipe. Referring to fig. 2 and 7, a water diversion column 51 is disposed in the cooling water channel 50, and the water diversion column 51 is equal in length to the cooling water channel 50 and is directly clamped inside the cooling water channel 50. Of course, the cooling water passage 50 may be fixed by spot welding, bolting, or bonding. The water diversion column 51 comprises a column body extending along the length direction of the cooling water channel 50 and a water diversion ridge 52 arranged on the peripheral surface of the column body, the water diversion ridge 52 extends along the length direction of the column body, and a plurality of turbulence holes 53 are uniformly arranged on the water diversion ridge 52 along the length direction of the water diversion ridge 52.
After hot forging and pressing, the die is closed and the pressure is maintained, cooling water is introduced into the cooling water channel 50, and the upper die 6 and the lower die 7 are rapidly cooled by the cooling water, so that the workpiece is cooled. Because the cooling water channel 50 is internally provided with the water diversion column 51, on one hand, the water diversion column 51 can indirectly increase the contact area between the mold and the cooling water, so that the utilization rate of the cooling water is higher, and in order to improve the heat transfer efficiency, the water diversion column 51 is made of copper alloy or aluminum alloy with good heat conduction performance. On the other hand, the turbulent hole 53 arranged on the water dividing ridge 52 of the water dividing column 51 can also improve the turbulent effect, so that the cooling water can quickly finish cold and hot remixing in the heat absorption process, the cooling effect is improved, the workpiece can be quenched efficiently and high-quality, and the quality of the workpiece is improved.
Regarding the arrangement of the cooling water source, the water inlet main pipe of the present invention is connected with the high-level water tank, and the high-level water tank is used as a water source, and the height of the high-level water tank is generally larger than the cooling water channel on the mold as a whole, that is, at least larger than the cooling water channel on the upper mold 6. The water outlet main pipe is connected with the recycling water tank, the recycling water tank is used for containing cooling water after heat exchange, the water outlet main pipe is provided with a water pump, and the water pump is used for accelerating the flow of the cooling water, so that the heat exchange efficiency is improved. A cooling mechanism for promoting cooling water is generally arranged in the reuse water tank. After the temperature reduction is finished, cooling water can be pumped into the high-level water tank again through the circulating pipe for cyclic utilization.
Claims (6)
1. A water-cooling quenching press is characterized in that: the device comprises a square frame (1), wherein an opening in the middle of the frame (1) forms a working area (2); an upper sliding block (3) and a lower sliding block (4) are arranged in the working area (2); vertical sliding rails (5) are arranged on the rack (1) corresponding to the left side wall and the right side wall of the working area (2), and the left side and the right side of the upper sliding block (3) and the lower sliding block (4) extend into the sliding rails (5) and are in sliding fit with the sliding rails (5); an upper die (6) and a lower die (7) are respectively arranged on the bottom surface of the upper sliding block (3) and the top surface of the lower sliding block (4); the top of the rack (1) is provided with a hydraulic telescopic cylinder (8), and the output end of the hydraulic telescopic cylinder (8) faces downwards and is fixedly connected with the upper sliding block (3); the upper sliding block (3) is in transmission connection with the lower sliding block (4) through a linkage device;
a plurality of cooling water channels (50) which are parallel to each other are uniformly arranged in the upper die (6) and the lower die (7), and the cooling water channels (50) extend along the front-back direction of the upper die (6) and the lower die (7); one end of the cooling water channel (50) is connected with the water inlet main pipe through the water inlet branch pipe, and the other end of the cooling water channel is connected with the water outlet main pipe through the water outlet branch pipe; a water diversion column (51) is arranged in the cooling water channel (50), the water diversion column (51) comprises a column body extending along the length direction of the cooling water channel (50) and a water diversion ridge (52) arranged on the peripheral surface of the column body, the water diversion ridge (52) extends along the length direction of the column body, and a plurality of turbulence holes (53) are uniformly formed in the water diversion ridge (52) along the length direction of the water diversion ridge (52);
the water inlet main pipe and the water outlet main pipe are both pressure-bearing hoses;
the water dividing column (51) is made of copper alloy or aluminum alloy;
the water inlet main pipe is connected with the high-level water tank, the water outlet main pipe is connected with the reuse water tank, and the water outlet main pipe is provided with a water pump;
the linkage device comprises a pulley stress application mechanism, a transition mechanism, a lever stress application mechanism and a pushing frame which are sequentially arranged along the power transmission direction; the pushing frame is positioned below the lower sliding block (4), the lever force application mechanism is positioned in the rack (1) below the pushing frame, the pulley force application mechanism is positioned in the rack (1) on one side of the working area (2), and the transition mechanism is positioned between the lever force application mechanism and the pulley force application mechanism;
the pulley force application mechanism comprises a vertical guide rail (9) and a lifting block (10) which is arranged on the guide rail (9) and is in sliding fit with the guide rail (9); the guide rail (9) is fixedly arranged on the rack (1), and the lifting block (10) is provided with an upper movable pulley (11) and a lower movable pulley (12); a connecting block (13) is fixedly arranged on one side, close to the guide rail (9), of the upper sliding block (3), and the connecting block (13) penetrates through a sliding opening (14) formed in the rack (1) and extends into the rack (1); an upper fixed pulley (15) and a lower fixed pulley (16) are also fixedly arranged in the rack (1) above and below the guide rail (9); the pulley stress application mechanism further comprises an upper pull rope (17) and a lower pull rope (18), one end of the upper pull rope (17) is fixed with the connecting block (13), and the other end of the upper pull rope (17) sequentially rounds the upper fixed pulley (15) and the upper movable pulley (11) in an S shape and then is fixed on the upper rack (1); one end of the lower pull rope (18) is fixed with the connecting block (13), and the other end of the lower pull rope sequentially rounds the lower fixed pulley (16) and the lower movable pulley (12) in an S shape and then is fixed on the lower rack (1);
the transition mechanism comprises a vertical transition connecting rod (19) and a first guide sleeve (20), the first guide sleeve (20) is fixedly connected with the rack (1), and the transition connecting rod (19) penetrates through the first guide sleeve (20) and is in sliding fit with the first guide sleeve (20); the upper end of the transition connecting rod (19) is fixedly connected with the lifting block (10), and the lower end of the transition connecting rod is in rolling and sliding fit with one end of a swing lever (21) of the lever stress application mechanism.
2. The water-cooled quenching press as claimed in claim 1, characterized in that: the pushing frame comprises a plurality of vertical push rods (22), the upper ends of the push rods (22) are fixedly connected with the lower sliding block (4), and the lower ends of the push rods extend into the rack (1) and are fixedly connected with the cross rod (23); the lower part of the center of the cross rod (23) is fixedly provided with a vertical main push rod (24), and the lower end of the main push rod (24) is in rolling and sliding fit with a swing lever (21) of the lever stress application mechanism.
3. The water-cooled quenching press as claimed in claim 2, characterized in that: the lever force application mechanism comprises a proportion adjusting component and a swing lever (21) which is transversely arranged; the proportion adjusting assembly comprises a hinge seat (25) and four transverse guide rods (26) which are arranged in a matrix manner, one end of each guide rod (26) is fixed on the rack (1), four guide holes (27) matched with the guide rods (26) are formed in the hinge seat (25), and the guide rods (26) are sleeved with the hinge seat (25) through the guide holes (27); an electric push rod (28) stretching along the transverse direction is fixedly arranged on the rack (1) on one side of the hinge seat (25), the output end of the electric push rod (28) is fixedly connected with one surface of the hinge seat (25), and a hinge lug (29) is arranged on the other surface of the hinge seat (25); one end of the swing lever (21) is hinged with the hinge lug (29), the middle part of the swing lever is in rolling and sliding fit with the main push rod (24), and the other end of the swing lever extends to the lower part of the transition connecting rod (19) and is in rolling and sliding fit with the transition connecting rod (19).
4. The water-cooled quenching press as claimed in claim 3, characterized in that: a first strip-shaped through hole (30) is formed in the swing lever (21) along the length direction of the swing lever (21), a second strip-shaped through hole (31) is formed in the top of the swing lever (21) along the length direction of the swing lever (21), and the first strip-shaped through hole (30) and the second strip-shaped through hole (31) are communicated with each other; two rolling pins (32) are arranged on the front side and the rear side of the lower ends of the transition connecting rod (19) and the main push rod (24), the transition connecting rod (19) and the main push rod (24) penetrate into the swing lever (21) through the second strip-shaped through hole (31), and the two rolling pins (32) are respectively arranged in the first strip-shaped through hole (30) in a penetrating mode.
5. The water-cooled quenching press as claimed in claim 4, wherein: supporting legs (35) are arranged at the bottoms of the hinging seats (25), and supporting rollers (36) are arranged at the lower ends of the supporting legs (35); the bottom surface of the rack (1) is provided with a limiting groove (37) extending along the left-right direction, and the supporting rollers (36) are positioned in the limiting groove (37).
6. The water-cooled quenching press as claimed in claim 5, characterized in that: the two sides of the main push rod (24) are also provided with auxiliary push rods, each auxiliary push rod comprises an outer pipe (38) and an inner rod (39) which are matched with each other, the upper end of each inner rod (39) extends into the outer pipe (38), the front side and the rear side of the lower end of each inner rod (39) are also provided with rolling pins (32), and the rolling pins (32) penetrate through the first strip-shaped through holes (30) and are in rolling and sliding fit with the swing lever (21); the inner rod (39) between the retaining rings (40) is sleeved with a first spiral spring (41), and the upper end and the lower end of the first spiral spring (41) are fixedly connected with the retaining rings (40) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910196718.5A CN109807274B (en) | 2019-03-15 | 2019-03-15 | Water-cooling quenching press |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910196718.5A CN109807274B (en) | 2019-03-15 | 2019-03-15 | Water-cooling quenching press |
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| CN109807274A CN109807274A (en) | 2019-05-28 |
| CN109807274B true CN109807274B (en) | 2020-06-30 |
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| CN111229849A (en) * | 2020-01-19 | 2020-06-05 | 夏浩宽 | Forge and press device for tongs |
| CN111590002B (en) * | 2020-05-11 | 2021-10-19 | 山东邦巨实业有限公司 | Machining device for preventing cooling deformation of titanium alloy forging after forging |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2666658Y (en) * | 2003-12-26 | 2004-12-29 | 扬州锻压机床有限公司 | Press |
| KR101115337B1 (en) * | 2009-10-21 | 2012-03-06 | 주식회사화신 | Cooling and washing device of die for hot forming products and control method thereof |
| CN202137255U (en) * | 2011-02-12 | 2012-02-08 | 机械科学研究总院先进制造技术研究中心 | Hot stamping die with temperature measuring system |
| US9511402B2 (en) * | 2012-12-07 | 2016-12-06 | Toa Industries Co., Ltd. | Press die and press machine |
| CN205631243U (en) * | 2016-04-07 | 2016-10-12 | 宿迁市宇淇塑业有限公司 | Plastic mould |
| CN205967347U (en) * | 2016-08-25 | 2017-02-22 | 盐城东江汽车部件有限公司 | Car steering wheel metal framework's accurate rapid forming mould |
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Effective date of registration: 20200602 Address after: 312400 Guanling Peak, Sanjie Town, Shengzhou City, Shaoxing City, Zhejiang Province Applicant after: SHENGZHOU NON-STANDARD SPROCKET Co.,Ltd. Address before: No. 28, Xiaokeng Village, Beizhang Town, Shengzhou City, Shaoxing City, Zhejiang Province, 312400 Applicant before: Wang Zhongxiang |
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Denomination of invention: Water cooled quenching press Effective date of registration: 20210817 Granted publication date: 20200630 Pledgee: Industrial and Commercial Bank of China Shengzhou sub branch Pledgor: SHENGZHOU NON-STANDARD SPROCKET Co.,Ltd. Registration number: Y2021330001140 |
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Date of cancellation: 20220329 Granted publication date: 20200630 Pledgee: Industrial and Commercial Bank of China Shengzhou sub branch Pledgor: SHENGZHOU NON-STANDARD SPROCKET Co.,Ltd. Registration number: Y2021330001140 |
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Effective date of registration: 20221018 Address after: 516000 Hongtian Village, Xinwei Town, Huiyang District, Huizhou City, Guangdong Province (Hongtian Street Section) Patentee after: Huizhou Huayunda Hardware Plastic Products Co.,Ltd. Address before: 312400 Guanling Peak, Sanjie Town, Shengzhou City, Shaoxing City, Zhejiang Province Patentee before: SHENGZHOU NON-STANDARD SPROCKET Co.,Ltd. |