CN216881372U - Stamping die's switching mechanism - Google Patents

Abstract

The utility model relates to a switching mechanism of a stamping die, which comprises a switching mechanism fixed on an upper die holder, wherein the switching mechanism comprises a switching block and a male die, the switching block is provided with a first position and a second position in the stroke, when the switching block moves to the first position, a male die insert extends out of the upper die holder, when the switching block is positioned at the second position, the male die insert retracts into the upper die holder, an elastic piece is further arranged in the upper die holder, one end of the elastic piece is fixed, the other end of the elastic piece is connected with a bolt, and a first jack and a second jack are arranged at the bottom of the switching block. The utility model reduces the error rate of the switching block and the rejection rate of stamped parts.

Description

Stamping die's switching mechanism

Technical Field

The utility model relates to the technical field of vehicle bodies, in particular to a whole vehicle technology.

Background

In order to realize the production of specific parts in various states in a stamping die, the die is required to be provided with a switching mechanism to realize the switching of the parts in different states. For example, the die of the outer plate of the top cover can be required to realize the switching production of the top cover in a skylight-free state and a skylight state; the side wall outer plate die can require to realize the switching production of the side wall outer plate in a non-oil filler state and an oil filler state.

As shown in fig. 1 and 2, the mechanism 1 for switching the state of the side gusset outer panel with/without a fuel filler is a vehicle. The switching mechanism 1 consists of a nitrogen cylinder 11, a male die mounting seat 12, a switching block 13 and a cylinder 14. The male die insert 2 shaped as the oil filling port is arranged on the male die mounting seat 12. The nitrogen cylinder 11 is arranged on the male die mounting seat 12 and is used for jacking the upper die pressing material plate 3. The male die mounting seat 12 is provided with a guide plate and is in contact with the upper die pressure plate 3, so that the male die mounting seat 12 can slide up and down. The switch block 13 is provided with a guide plate, and the guide plate is connected with the upper die base 4, so that the switch block 13 can slide back and forth. The cylinder 14 is fixed on the upper die base 4 and connected with the switching block 13, and the cylinder 14 is externally connected with an air source. The switching mechanism 1 is integrally mounted on the upper die holder 4. When the switching mechanism 1 is switched, the switching is always performed in a state that the mold is opened, the distance between the upper mold pressing plate 3 and the upper mold base 4 is the largest, and the switching mechanism 1 can flexibly move at the moment. As shown in fig. 3, when an air source is input into the air cylinder 14, a piston rod of the air cylinder 14 pushes the switching block 13 to move forward, and the switching block 13 enters the position right below the male die mounting seat 12 to support the male die mounting seat 12; when the die is closed, the bottom of the male die mounting seat 12 is supported by the switching block 13, and the male die insert 2 is in a convex state, so that the oil filling port molding stamping forming content is realized. As shown in fig. 4, when the air source is withdrawn by the air cylinder 14, the air cylinder 14 pulls the switching block 13 to move backwards, and the switching block 13 is withdrawn from the bottom of the male die mounting seat 12, so that the male die mounting seat 12 is not supported; when the die is closed, the bottom of the male die mounting seat 12 is not supported by the switching block 13, and the male die insert is in a concave state, so that the stamping forming content without an oil filling port is realized.

However, in actual production, the switching mechanism 1 in the upper die base 4 has no continuous air source input because the air source is not arranged on the upper slide block of the press. The air cylinder 14 is connected with an air source in a switching state, and the air source is disconnected after the switching is finished. However, the mold is constantly moved up and down during the production, and the upper and lower molds are vibrated by closing, and the switching block 13 of the switching mechanism 1 is vibrated and moved forward and backward. After moving to a certain degree, the switching block 13 enters/exits the bottom of the male die mounting seat 12, and the switching mechanism 1 is switched by mistake, so that the production is unstable, the punched parts are scrapped in batches, and the die is damaged in severe cases.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a switching mechanism of a stamping die, which aims to solve the problem that a module is damaged due to the fact that the switching mechanism is easy to switch by mistake.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a switching mechanism of a stamping die comprises a switching mechanism fixed on an upper die base, the switching mechanism comprises a switching block and a male die,

the switching block has primary importance and second place in its stroke, when switching the piece and moving to the primary importance, the terrace die insert stretches out the upper die base, when switching the piece and being located the second place, the terrace die insert withdrawal the inside of upper die base, the inside elastic component that still is equipped with of upper die base, the one end of elastic component is fixed, the other end with the bolt connection, the bottom of switching the piece is equipped with first jack and second jack, works as when switching the piece and moving to the primary importance, the bolt can insert in the first jack under the effect of elastic component elasticity, works as when switching the piece and moving to the second place, the bolt can insert in the second jack under the effect of elastic component elasticity.

According to the technical means, when the switching block moves to the first position, the plug pin can be inserted into the first jack under the action of elastic force of the elastic piece, when the switching block moves to the second position, the plug pin can be inserted into the second jack under the action of elastic force of the elastic piece, the plug pin can limit the switching block, the amplitude of shaking of the switching block is reduced, wrong switching of the switching mechanism is avoided, and accordingly the rejection rate of parts and the damage to a mold are reduced.

Further, the switching block is connected with a piston rod of the air cylinder, when the piston rod of the air cylinder extends out completely, the switching block is located at the first position, and when the piston rod of the air cylinder retracts completely, the switching block is located at the second position.

According to the above technical means, it is convenient to set the positions of the first and second insertion holes such that the positions of both need only be related to the extreme positions of the piston rod.

Furthermore, a communication channel is arranged inside the upper die base, and when the bolt is inserted into the first jack or the second jack, the part of the bolt is positioned in the communication channel.

According to the technical means, the stability of the switching block when the plug pin is inserted into the first jack and the second jack is improved.

Furthermore, the bolt is connected with a pull rope, one end of the pull rope is connected with the bolt, the other end of the pull rope is located outside, the bolt can be withdrawn from the first jack and the second jack under the action of external force, and the external force is applied to the bolt through the pull rope.

According to the technical means, the operation of workers is facilitated.

Further, a portion of the draw cord is located inside the communication channel.

Further, the inside of intercommunication passageway is equipped with fixed pipe, the elastic component is located fixed inside of managing, the bottom of elastic component is connected on the diapire of fixed pipe, the stay cord passes fixed pipe, with the bottom of bolt is connected, at least the part of bolt can be followed fixed pipe's top is stretched out.

Further, a protection tube is sleeved on the pull rope, and the protection tube is located between the fixed tube and the end portion, extending out of the upper die base, of the pull rope.

The utility model has the beneficial effects that:

the utility model is provided with the bolt, when the switching block reaches the first position or the second position, the bolt can be inserted into the first jack or the second jack of the switching block, so that the switching block is limited, and through the connection and fixation of the bolt, the switching block is ensured not to vibrate and mistakenly exit/enter the male die mounting seat when the die moves up and down, so that the error rate of the switching block and the rejection rate of stamped parts are reduced.

Drawings

FIG. 1 is a schematic diagram of a switching mechanism in the prior art;

FIG. 2 is a schematic diagram of an embodiment of a switching mechanism in the prior art;

FIG. 3 is a schematic diagram of the jacking of a punch insert;

FIG. 4 is a schematic drawing of the punch insert retraction;

FIG. 5 is a schematic view of the locking mechanism of the present invention;

FIG. 6 is a schematic diagram of the location and implementation of a locking mechanism;

FIG. 7 is a schematic view of the locking mechanism;

FIG. 8 is a schematic view of the manner in which the pins are removed from the first and second receptacles;

fig. 9 is a schematic view showing a manner in which the plug is inserted into the second jack.

Wherein, 1-a switching mechanism; an 11-nitrogen cylinder; 12-a punch mounting seat; 13-a switching block; 14-a cylinder; 2-a male die insert; 3-upper die pressing plate; 4-an upper die holder; 5-a locking mechanism; 51-a latch; 52-a stationary tube; 53-protective tube; 54-buckling; 55-an elastic member; 56-pulling rope; 6-a first receptacle; 7-second receptacle.

Detailed Description

Other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein, wherein embodiments of the present invention are described below with reference to the accompanying drawings and preferred embodiments. The utility model is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be understood that the preferred embodiments are illustrative of the utility model only and are not limiting upon the scope of the utility model.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

The present embodiment provides a switching mechanism of a stamping die, as shown in fig. 5-7, including a locking mechanism 5, based on the background art, the switching mechanism 1 is installed on an upper die holder 4, the switching mechanism 1 includes a nitrogen cylinder 11, a punch mounting seat 12, a switching block 13 and a cylinder 14, the switching block 13 is connected to a piston rod of the cylinder 14, when the cylinder 14 is ventilated, and the piston rod of the cylinder 14 is fully extended, the switching block 13 is located at a first position, which is the bottom of the punch mounting seat 12, the switching block 13 supports the punch insert 2, so that the punch insert 2 extends out of the upper die holder 4 and is in a convex state, and when the piston rod of the cylinder 14 is fully retracted, the switching block 13 is located at a second position, so that the punch insert 2 loses the support of the switching block 13, and is retracted into the upper die holder 4, and the punch insert 2 is in a concave state. The first and second positions are not limited to corresponding to the extended and retracted positions of the piston rod.

The bottom of switching piece 13 is equipped with first jack 6 and second jack 7, first jack 6 and second jack 7 are the blind hole, switching piece 13 can cooperate with locking mechanism 5, locking mechanism 5 includes bolt 51 and elastic component 55, elastic component 55 one end is fixed, the other end is connected with bolt 51, when switching piece 13 moves first position and second position, the elasticity drive bolt 51 of elastic component 55 can insert first jack 6 and second jack 7 respectively, and support and lean on switching piece 13, can carry on spacingly to switching piece 13, avoid switching piece 13 to rock, when switching piece 13 is producing the trend of leaving first position and second position, elastic component 55 compresses, and then make bolt 51 retract, bolt 51 leaves first jack 6 or second jack 7.

The above mode can be realized in an automatic mode, specifically: a controller and a pressing object are arranged, the pressing object can be a pressing block connected with the hydraulic cylinder, the pressing block can press and hold the elastic piece 55 under the hydraulic cylinder, a period is arranged in the controller, the period is equal to the period of the up-and-down movement of the mold, at a certain time point of the current half period, the air cylinder 14 drives the switching block 13 to reach the first position, at this time, the first jack 6 corresponds to the position of the plug pin 51, the controller controls the pressing block not to press the elastic piece 55, at this time, the elastic piece 55 drives the plug pin 51 to be inserted into the first jack 6, after the first half cycle is completed, the controller controls the pressing block to compress the elastic member 55, the plug 51 leaves the first insertion hole 6, when a certain time point of the latter half cycle is reached, the controller controls the pressing block to not press the elastic piece 55 again, the bolt 51 is inserted into the second jack 7 under the elastic force of the elastic piece 55, and after the latter half cycle is completed, the bolt 51 leaves the second jack 7.

In this embodiment, the bottom end of the latch 51 is connected to one end of the pull rope 56, the other end of the pull rope 56 is located outside, when the worker pulls the pull rope 56, the latch 51 moves downward against the elastic force of the elastic member 55 by external force, and then leaves the first jack 6 or the second jack 7, and when the external force is removed, the elastic member 55 drives the latch 51 to move upward, and then can be inserted into the first jack 6 or the second jack 7.

Be equipped with the intercommunication passageway in the inside of upper die base 4 for the inside of upper die base 4 can communicate with the outside, and stay cord 56 passes upper die base 4 through the intercommunication passageway, and the intercommunication passageway has certain shape, can be spacing to stay cord 56, avoids the position change of the tip that stay cord 56 stretches out upper die base 4, makes the difficult operation of staff.

In this embodiment, when the plug 51 is fitted to the first receptacle 6 or the second receptacle 7, the tip of the plug 51 abuts against the switch block 13, and at the same time, a part of the plug 51 is located inside the communication passage, so that the side wall of the plug 51 can press against the inner wall of the communication passage. The above structure reduces the amount of movement of the plug pin 51 in the radial direction thereof, makes the plug pin 51 more stable, and further reduces the amplitude of the wobble of the switching block 13.

A fixed pipe 52 is provided inside the communication passage, the top end of the fixed pipe 52 is open, so that the latch 51 can extend from the top end of the fixed pipe 52, the elastic member 55 is located inside the fixed pipe 52, the bottom end of the fixed pipe 52 is provided with a via hole, and the pull rope 56 can pass through the via hole and the elastic member 55 simultaneously to be connected with the latch 51. Meanwhile, the diameter of the elastic member 55 is larger than the aperture of the via hole. So that the end of the elastic member 55 remote from the plug 51 can abut on the inner bottom wall of the fixed tube 52.

The locking mechanism 5 further comprises a protection tube 53 and a buckle 54, the protection tube 53 is made of plastics and is located between the fixing tube 52 and the end portion, extending out of the upper die holder 4, of the pull rope 56, the pull rope 56 penetrates through the protection tube 53, and the protection tube 53 can protect the pull rope 56.

The clip 54 is provided outside the upper die holder 4 and can fix the protection pipe 53.

In this embodiment, the locking mechanism 5 is implemented as follows: as shown in fig. 8, after the switching mechanism 1 is connected to the air supply and before the air inlet/outlet switching, a person manually pulls the pull rope 56 of the locking device 5, and the pull rope 56 pulls the latch 51 toward the bottom of the fixed pipe 52, at this time, the latch 51 enters the inside of the communication passage.

As shown in fig. 6, the air cylinder 14 of the switching mechanism 1 is filled with air, the air cylinder 14 pushes the switching block 13 to move forward to the first position, and then the person releases the pull rope 56, the latch 51 is ejected and inserted into the first insertion hole 6 under the rebounding action of the elastic member 55, so that the position of the switching block 13 is locked and fixed;

as shown in fig. 9, when the switch block 13 is required to be withdrawn, the above steps are also performed, the pull rope 56 is pulled first, the air cylinder 14 of the switch mechanism 1 is vented, the pull rope 56 is released, the latch 51 is inserted into the second insertion hole 7, and the lock and the fixation of the switch block 13 in this state are realized.

The number and size of the locking devices 5 can be increased or decreased according to the size of the switching mechanism 1.

The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the utility model is all within the protection scope of the utility model.

Claims (7)

1. The utility model provides a stamping die's switching mechanism, includes the switching mechanism of fixing at the upper die base, switching mechanism includes switching piece and terrace die, its characterized in that: the switching block has primary importance and second place in its stroke, when switching the piece and moving to the primary importance, the terrace die insert stretches out the upper die base, when switching the piece and being located the second place, the terrace die insert withdrawal the inside of upper die base, the inside elastic component that still is equipped with of upper die base, the one end of elastic component is fixed, and the other end and bolt connection, the bottom of switching the piece is equipped with first jack and second jack, works as when switching the piece and moving to the primary importance, the bolt can insert in the first jack under the effect of elastic component elasticity, works as when switching the piece and moving to the second place, the bolt can insert in the second jack under the effect of elastic component elasticity.

2. The switching mechanism of a press die according to claim 1, characterized in that: the switching block is connected with a piston rod of the air cylinder, when the piston rod of the air cylinder extends out completely, the switching block is located at the first position, and when the piston rod of the air cylinder retracts completely, the switching block is located at the second position.

3. The switching mechanism of a press die according to claim 2, characterized in that: and a communicating channel is arranged in the upper die holder, and when the bolt is inserted into the first jack or the second jack, the part of the bolt is positioned in the communicating channel.

4. The switching mechanism of a press die according to claim 3, characterized in that: the bolt is connected with a pull rope, one end of the pull rope is connected with the bolt, the other end of the pull rope is located outside, the bolt can withdraw from the first jack and the second jack under the action of external force, and the external force is applied to the bolt through the pull rope.

5. The switching mechanism of a press die according to claim 4, characterized in that: part of the pull rope is positioned inside the communication channel.

6. The switching mechanism of a press die according to claim 5, characterized in that: the inside of intercommunication passageway is equipped with the fixed tube, the elastic component is located the inside of fixed tube, the bottom of elastic component is connected on the diapire of fixed tube, the stay cord passes the fixed tube, with the bottom of bolt is connected, at least the part of bolt can be followed the top of fixed tube is stretched out.

7. The switching mechanism of a press die according to claim 6, characterized in that: the pull rope is sleeved with a protection pipe, and the protection pipe is located between the fixed pipe and the end part, extending out of the upper die base, of the pull rope.

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