CN218744360U - Press fit die changing system - Google Patents

Abstract

The utility model relates to a press-fit die changing system, which comprises a press machine and die changing racks arranged on two sides of the press machine, wherein at least one die changing library for placing dies is arranged on the die changing racks, and an X-direction linear conveying mechanism and a Y-direction linear conveying mechanism are arranged on the die changing racks; the X-direction linear conveying mechanism drives the die changing warehouse to linearly move along the X direction, so that the dies on the die warehouse are conveyed to the press machine, or the dies on the press machine are conveyed to the die changing warehouse; the Y-direction linear conveying mechanism drives the die changing warehouse to move linearly along the Y direction. The automatic die changing system with four storage positions can be expanded by simple and ingenious combination, full-automatic quick switching within 150 seconds is realized, any die in the four storage positions is switched randomly and enters a production station for production, the die changing time is greatly saved, and the production efficiency is improved.

Description

Press fit die changing system

Technical Field

The utility model relates to a punching press technical field especially relates to a die change system of press fitting die.

Background

In the normal production process of each main engine plant of the large automobile, after a certain batch of parts is produced, the production of the next part needs to be switched to, and the general steps of the process are as follows: 1. and (2) opening a press working table, lifting the old die by using the crown block, lifting the new die by using the crown block, and manually aligning the positioning pin and putting down the die by using the new die (as shown in figure 1). The die change causes long downtime, affects production efficiency, is not beneficial to enterprise reduction in production cost, and increases potential safety hazard in the frequent die change process of the overhead traveling crane. The skill level of the operator is demanding.

The traditional press only has one storage position, only one set of mould can be arranged at one time, and when the die body is arranged on the press machine, the die body needs to be observed manually and the position of the die needs to be adjusted manually so that the die can accurately fall into the corresponding positioning pin on the press machine (as shown in figure 1). After the series of actions is completed, the fastening screws of the lower die are manually screwed, so that the loading work of a new die is completed. This process needs a large amount of time, and needs the artifical position of participating in control mould, is unfavorable for the enterprise to provide production efficiency, has increased manufacturing cost, and has the potential safety hazard of mould whereabouts presser foot.

SUMMERY OF THE UTILITY MODEL

For solving the above problem, the utility model provides a pressfitting mould retooling system can realize the full-automatic fast switch-over of follow-up production through the retooling storehouse position of once packing into by the manual work.

The utility model adopts the technical proposal that: the utility model provides a pressfitting mould retooling system which characterized in that: the die changing machine comprises a press machine and die changing racks arranged on two sides of the press machine, wherein at least one set of die changing warehouse used for placing dies is arranged on each die changing rack, and an X-direction linear conveying mechanism and a Y-direction linear conveying mechanism are arranged on each die changing rack; the X-direction linear conveying mechanism drives the die changing warehouse to linearly move along the X direction, and the dies on the die changing warehouse are conveyed to a press machine or the dies on the press machine are conveyed to the die changing warehouse; and the Y-direction linear conveying mechanism drives the die changing warehouse to linearly move along the Y direction.

Preferably, the Y-direction linear conveying mechanism comprises a Y-direction stepping motor, a plurality of X-direction limiting rollers and a plurality of Y-direction rollers which are uniformly arranged along the Y direction, and a Y-direction linear guide rail, wherein the Y-direction stepping motor, the Y-direction rollers, the X-direction limiting rollers and the Y-direction linear guide rail are all fixed on a die changing rack, a lower bottom plate of the die is provided with a guiding grab matched with the Y-direction linear guide rail, and the guiding grab is clamped on the Y-direction linear guide rail; and the Y-direction stepping motor drives the die changing warehouse to move linearly along the Y direction on the Y-direction roller under the limitation of the X-direction limiting roller.

Furthermore, the X-direction linear conveying mechanism comprises an X-direction stepping motor, a plurality of Y-direction limiting idler wheels and a plurality of X-direction idler wheels which are uniformly arranged along the X direction, and an X-direction linear guide rail, the X-direction stepping motor is fixedly arranged on the die changing rack, the Y-direction limiting idler wheels, the X-direction idler wheels and the X-direction linear guide rail are all fixedly arranged on the die changing module, notches for guiding and grabbing are formed in the position, corresponding to the die changing position of the press machine, of the Y-direction linear guide rail, and the X-direction stepping motor drives dies on the die changing warehouse to move on the X-direction idler wheels along the X-direction linear guide rail under the limitation of the Y-direction limiting idler wheels.

Preferably, the adjacent die changing storehouses are fixedly connected through a connecting plate and a snap hook.

Preferably, the die changing rack is provided with a buffering limit plate and a distance detection sensor.

Preferably, a V-shaped hydraulic centering device is arranged on the press machine.

Preferably, a mold in-place electrical detection sensor is arranged on the press machine.

Preferably, the press machine is provided with a platen-type self-propelled clamp.

Preferably, the press machine is provided with an X-direction guide roller.

Preferably, the press machine is provided with a die lifting slide rail.

The utility model discloses the beneficial effect who gains is:

1. the automatic die changing system with four warehouse positions can be expanded through simple and ingenious combination, full-automatic quick switching within 150 seconds is realized, any die in the four warehouse positions is switched randomly and enters a production station for production, the die changing time is greatly saved, and the production efficiency is improved;

2. the mould is precisely positioned in the center of the press, and pneumatic clamping centering is adopted, so that the mould can be quickly and accurately positioned, the participation of manpower is reduced, manual intervention is not needed, the potential safety hazard is reduced, and the efficiency of the whole mould changing system is further improved;

3. the installation of mould is examined and is examined in place, and the inductor through on the upper and lower workstation detects the mould and targets in place, then automatic control binding clasp presss from both sides tight mould, reduces operating personnel's intensity of labour, compares traditional artifical fastening efficiency, and the comfort type improves greatly.

Drawings

FIG. 1 is a schematic view of a prior art press mold installation;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic diagram of connections between adjacent mold change libraries;

FIG. 4 is a schematic view of the arrangement of the Y-direction linear conveying mechanism on the die-changing bench;

FIG. 5 is a schematic structural view of a die-change table at a position corresponding to die change of a press machine;

FIG. 6 is a schematic view of the press machine;

FIG. 7 is a schematic view of the engagement between a guiding claw on a lower plate of a mold and a Y-direction linear guide rail;

fig. 8 is a schematic diagram of die change of the present invention;

wherein: 01. a work table; 02. positioning pins; 03. a V-shaped groove; 04. a steel wire;

1. pressing machine; 11. a V-shaped hydraulic centering device; 12. a guide roller; 13. a platen-type self-propelled gripper; 14. lifting a mould slide rail; 15. an electrical detection sensor; 2. a die change rack; 21. a buffer limit plate; 22. a distance detection sensor; 3. a die change library; 31. a connecting plate; 32. hooking; 4. a Y-direction linear conveying mechanism; 41. a Y-direction stepping motor; 42. a Y-direction linear guide rail; 43. an X-direction limiting roller; 44. a Y-direction roller; 5. an X-direction linear conveying mechanism; 51. an X-direction stepping motor; 52. an X-direction linear guide rail; 53. a Y-direction limiting roller; 54. an X-direction roller; 6. a mold; 60. guiding to grab; 61. a first mold; 62. a second mold; 63. a third mould; 64. and a fourth mold.

Detailed Description

The technical solution of the present invention will be clearly and completely described with reference to the accompanying drawings.

As shown in fig. 2-8, the utility model discloses a press-fit die changing system, which comprises a press machine 1 and die changing tables 2 arranged on both sides of the press machine 1, wherein at least one die changing library 3 for placing dies is arranged on the die changing tables 2, and an X-direction linear conveying mechanism 5 and a Y-direction linear conveying mechanism 4 are arranged on the die changing tables 2; the X-direction linear conveying mechanism 5 drives the die changing warehouse 3 to linearly move along the X direction, and the die 6 on the die changing warehouse 3 is conveyed to the press machine 1, or the die 6 on the press machine 1 is conveyed to the die changing warehouse 3; the Y-direction linear conveying mechanism 4 drives the die changing warehouse 3 to move linearly along the Y direction.

As shown in fig. 4-5, the Y-direction linear conveying mechanism 4 includes a Y-direction stepping motor 41, a plurality of X-direction limiting rollers 43 and a plurality of Y-direction rollers 44 uniformly arranged along the Y-direction, a Y-direction linear guide rail 42, and a Y-direction stepping motor 41, a Y-direction roller 44, an X-direction limiting roller 43, and a Y-direction linear guide rail 42 all fixed on the mold changing table 2, as shown in fig. 7, a guiding claw 60 matched with the Y-direction linear guide rail 42 is provided on a lower base plate of the mold 6, and the guiding claw 60 is clamped on the Y-direction linear guide rail 42; the Y-direction stepping motor 41 drives the die changing warehouse 3 to move linearly along the Y direction on the Y-direction roller 44 under the limitation of the X-direction limiting roller 43.

Referring to fig. 3, the X-direction linear conveying mechanism 5 includes an X-direction stepping motor 51, a plurality of Y-direction limiting rollers 53 and a plurality of X-direction rollers 54 uniformly arranged along the X-direction, and an X-direction linear guide rail 52, the X-direction stepping motor 51 is fixedly disposed on the mold exchanging table 2, the Y-direction limiting rollers 53, the X-direction rollers 54, and the X-direction linear guide rail 52 are all fixedly disposed on the mold exchanging block 3, referring to fig. 5, the Y-direction linear guide rail 42 is provided with a notch for passing the guiding grab 60 at a mold exchanging position corresponding to the press machine 1, and the X-direction stepping motor 51 drives the mold 6 on the mold exchanging table 3 to move along the X-direction linear guide rail on the X-direction rollers 54 under the restriction of the Y-direction limiting rollers 53.

In this embodiment, the adjacent mold changing magazines 3 are fixedly connected through the connecting plate 31 and the engaging hook 32, so that one Y-direction stepping motor 41 can simultaneously drive a plurality of mold changing magazines 3 on the same side to move along the Y-direction linear guide 42 in the Y direction through the push-pull chain device

In this embodiment, the die-changing table frame 2 is provided with the buffering limit plate 21 and the distance detection sensor 22, when the distance detection sensor 22 detects that the die-changing warehouse 3 moves in place, a signal is sent to stop the Y-direction stepping motor 41, and the buffering limit plate 21 physically limits the movement distance of the die-changing warehouse 3 in the Y direction to prevent the die-changing warehouse from moving out of the die-changing table frame 2.

Compared with the traditional press machine, the press machine 1 is additionally provided with the V-shaped hydraulic centering devices 11, and the principle is that V-shaped centering blocks corresponding to the V-shaped hydraulic centering devices 11 on the two sides of the press machine 1 are arranged on the front side and the rear side of the die, so that when the die stops near the center of the press machine 1, the two V-shaped hydraulic centering devices 11 on the two sides of the press machine start to work, the V-shaped centering blocks on the die are extruded towards the middle until the V-shaped centering blocks are reached, and the V-shaped hydraulic centering blocks on the die and the V-shaped hydraulic centering devices 11 on the press machine 1 are completely attached. The precise positioning of the mold on the table of the press 1 is now complete. Meanwhile, compared with the traditional press machine, the press machine 1 is additionally provided with two die in-place electrical detection sensors 15 sinking to the table board under the table board, and processing sensing surfaces are arranged at corresponding positions of a lower bottom plate of the die. After the mold is positioned on the worktable of the press machine 1, the two electric detection sensors 15 on the worktable sense two sensing surfaces which are correspondingly designed on the mold. The corresponding clamping surface on the mould is clamped by a hydraulically-driven pressure plate type self-propelled clamp 13 additionally arranged on the workbench of the press machine 1 to complete the clamping of the upper mould and the lower mould of the mould. Compared with a traditional press machine, the press machine 1 is additionally provided with the guide rollers 12, and the contact guide is realized by matching the machined guide surfaces on the two sides of the lower bottom plate Y of the die, so that the die can move in and out of the press machine 1 along the X direction. Compared with the traditional press machine, the press machine 1 is additionally provided with the mold lifting slide rails 14 in the mold feeding and discharging direction, the mold lifting slide rails 14 can be lifted to serve as rolling supports at the bottom of the mold when the press machine 1 is in a mold changing mode, the mold feeding and discharging are facilitated, after the electric detection sensor 15 detects that the mold is in place, the mold lifting slide rails 14 are lowered to the position below a workbench of the press machine 1, and the pressing plate type self-propelled clamping device 13 clamps corresponding clamping surfaces on the mold to clamp the upper mold and the lower mold of the mold.

As shown in fig. 8, the working principle of the present invention is:

firstly, a first mold 61, a second mold 62, a third mold 63 and a fourth mold 64 are sequentially hung on the corresponding mold changing warehouse 3, and the coarse positioning of the mold 6 in the mold changing warehouse 3 is limited by the Y-direction constraint of the guide claw 60 and the X-direction constraint of the Y-direction limiting roller 53 in the hanging process. The Y-direction stepping motor 41 drives the first mold changing warehouse and the first mold 61 thereon and the second mold changing warehouse and the second mold 62 thereon to move linearly along the Y-direction linear track 42 in the Y direction by a push-pull chain device. When the die change magazine and the die 61 thereon reach a straight line in the X direction with the press machine 1 after a fixed stroke, the distance detection sensor 22 detects a signal, the Y-direction stepping motor 41 stops working, and the die change magazine and the die 61 thereon stop moving. At this time, the first mold changing warehouse and the first mold 61 thereon are located at the middle position. The guide claw 60 arranged on the first die 61 is just in the position of the notch of the Y-direction linear track 42, at the moment, the guide claw 60 loses the constraint along the Y direction, the power device X arranged at the X direction tail end drives the die change frame side hook through the push-pull chain device to the stepping motor 51, and the die change frame side hook is meshed with the die side hook so as to drive the first die 61 to do linear motion along the X direction. At the moment, the first die 61 leaves the first die changing warehouse position, the die is supported by the X-direction roller 54 arranged on the X-direction linear track 52, the Y-direction limiting roller 53 is matched with wear-resisting plates arranged on the two sides of the lower bottom plate of the die in the Y direction to realize contact guiding, thereby ensuring the accuracy of the linear movement of the first mold 61 in the X direction. At this time, the press machine 1 is in a rising state under the support of the oil pressure cylinder because of being in a die changing mode, and is used as a rolling support of the bottom of the first die 61, the guide rollers 12 arranged on the press machine 1 are matched with the die lower bottom plate of the first die 61 to realize contact guide along the machined guide surfaces on the two sides in the Y direction, so that the linear motion of the first die 61 in and out of the press machine 1 along the X direction is ensured, when the first die 61 is in place through a preset stroke, the press machine 1 starts to work along the two V-shaped hydraulic centering devices 11 arranged on the centers of the two sides in the Y direction, the V-shaped centering block on the first die 61 is extruded to push the die to be in place, and finally the V-shaped centering block on the first die 61 is completely attached to the V-shaped hydraulic centering devices 11 on the press machine 1. This completes the accurate positioning of the first mold 61 on the table of the press machine 1. Then, the two die lifting slide rails 14 descend below the workbench of the press machine 1 under the action of the oil pressure cylinder, the first die 61 is completely positioned on the workbench of the press machine 1, and after the electric detection sensor 15 detects that the first die 61 is in place, the pressing plate type self-propelled clamping device 13 clamps the corresponding clamping surface on the first die 61, so that the clamping of the upper die and the lower die of the first die 61 is completed. And finishing the whole automatic die changing process. The die changing process of the second die 62, the third die 63 and the fourth die 64 is the same, and thus the description is omitted.

It should be noted that the above embodiments are merely representative examples of the present invention. Obviously, the present invention is not limited to the above-described embodiments, and many modifications are possible. Any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention should be considered as belonging to the protection scope of the present invention.

Claims (10)

1. The utility model provides a pressfitting mould retooling system which characterized in that: the die changing machine comprises a press machine and die changing racks arranged on two sides of the press machine, wherein at least one set of die changing warehouse used for placing dies is arranged on each die changing rack, and an X-direction linear conveying mechanism and a Y-direction linear conveying mechanism are arranged on each die changing rack; the X-direction linear conveying mechanism drives the die changing warehouse to linearly move along the X direction, and the dies on the die changing warehouse are conveyed to the press machine or the dies on the press machine are conveyed to the die changing warehouse; and the Y-direction linear conveying mechanism drives the die changing warehouse to linearly move along the Y direction.

2. The compression mold retooling system of claim 1, wherein: the Y-direction linear conveying mechanism comprises a Y-direction stepping motor, a plurality of X-direction limiting idler wheels, a plurality of Y-direction idler wheels and a Y-direction linear guide rail, wherein the X-direction limiting idler wheels and the Y-direction idler wheels are uniformly arranged along the Y direction; and the Y-direction stepping motor drives the die changing warehouse to move linearly along the Y direction on the Y-direction roller under the limitation of the X-direction limiting roller.

3. The compression mold retooling system of claim 2, wherein: the X-direction linear conveying mechanism comprises an X-direction stepping motor, a plurality of Y-direction limiting idler wheels and a plurality of X-direction idler wheels which are uniformly arranged along the X direction, and an X-direction linear guide rail, wherein the X-direction stepping motor is fixedly arranged on the die changing rack, the Y-direction limiting idler wheels, the X-direction idler wheels and the X-direction linear guide rail are fixedly arranged on the die changing block, notches for guiding and grabbing the dies to pass through are formed in the positions, corresponding to the die changing positions, of the Y-direction linear guide rail, and the X-direction stepping motor drives the dies on the die changing warehouse to move on the X-direction idler wheels along the X-direction linear guide rail under the limitation of the Y-direction limiting idler wheels.

4. The compression mold retooling system of claim 1, wherein: and the adjacent die changing storehouses are fixedly connected through a connecting plate and a snap hook.

5. The compression mold retooling system of claim 1, wherein: and the die changing rack is provided with a buffering limit plate and a distance detection sensor.

6. The compression mold retooling system of claim 1, wherein: and a V-shaped hydraulic centering device is arranged on the press machine.

7. The compression mold retooling system of claim 1, wherein: and a mold in-place electric detection sensor is arranged on the press machine.

8. The compression molding die changing system of claim 1, wherein: and a pressing plate type self-propelled clamping device is arranged on the press machine.

9. The compression mold retooling system of claim 1, wherein: and the press machine is provided with an X-direction guide roller.

10. The compression molding die changing system of claim 1, wherein: and the press machine is provided with a die lifting slide rail.

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