CN215786192U - Automatic discharge stamping die convenient to maintain - Google Patents

Abstract

The application discloses automatic discharge stamping die convenient to maintain relates to stamping die's field, and it includes mould and lower mould, is provided with the terrace die on the lower mould, and detachable is provided with the mount pad on going up the mould, and elasticity is provided with the unloading hook on the mount pad. This application adopts detachable structural design between last mould and mount pad, when overhauing the automatic discharge structure, it is convenient to dismantle to reach easy maintenance's effect.

Description

Automatic discharge stamping die convenient to maintain

Technical Field

The application relates to the field of stamping dies, in particular to an automatic discharging stamping die convenient to maintain.

Background

The stamping process is a production technology for obtaining a product workpiece with certain shape, size and performance by directly applying a deformation force to a plate in a die by means of the power of conventional or special stamping equipment and deforming the plate. The plate, the die and the equipment are three elements of stamping processing. Stamping is a cold metal deformation process. It is called cold stamping or sheet stamping, or stamping for short. It is one of the main methods of metal plastic working (or pressure working), and also belongs to the material forming engineering technology.

In the traditional punching process, after the workpiece is punched and formed, the formed product is manually taken out of the die, the product is taken out, time and labor are wasted, the production efficiency is lower, and certain danger exists.

In the prior art, chinese patent with publication number CN210702082U provides a stamping die capable of automatically discharging, which comprises an upper die and a lower die, wherein the lower die is provided with a guide post and a male die, the guide post and the stamping post penetrate through the male die and are slidably connected with the male die, the male die is mounted on the lower die, the upper die is provided with a discharging hook, and the fixed end of the discharging hook is connected with the upper die through a second elastic component. When stamping is started, the hook part of the unloading hook moves to the position below the stamping part along with the upper die, the unloading hook can laterally deviate after the hook part of the unloading hook is contacted with a workpiece on the male die, the hook part of the unloading hook rebounds to the position below the workpiece under the action of the second elastic part after the hook part of the unloading hook crosses the workpiece, the unloading hook moves upwards along with the upper die after stamping is completed, and the unloading hook lifts the stamping part to complete unloading.

The stamping die capable of automatically discharging provided by the prior art is used for a period of time, and after the elasticity of the second elastic part is attenuated and the discharging hook is worn and deformed, the automatic discharging function of the discharging hook is influenced. Because the unloading hook is directly installed in the upper die through the second elastic part, the replacement of the second elastic element and the unloading hook and other automatic unloading structures is difficult, and the maintenance of the automatic unloading mechanism is difficult.

In view of the above-mentioned related art, the inventor has recognized a need to provide an automatic discharge press die that is easy to maintain.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem of changing the difficulty when maintaining the automatic discharge structure among the prior art, the application provides an automatic discharge stamping die convenient to maintain, has the effect of dismantling simple to operate to the automatic discharge structure.

The application provides a pair of automatic discharge stamping die convenient to maintain adopts following technical scheme:

the utility model provides an automatic discharge stamping die convenient to maintain, includes mould and lower mould, be provided with the terrace die on the lower mould, it is provided with the mount pad to go up detachable on the mould, elasticity is provided with the unloading hook on the mount pad.

Through adopting above-mentioned technical scheme, adopt detachable structural design between last mould and mount pad, when keeping in repair to the automatic discharge structure, dismantle the change to mount pad and the hook of unloading wholly, it is more convenient to keep in repair the automatic discharge structure.

Optionally, a through hole is formed in the mounting seat, a threaded hole is formed in the upper die corresponding to the through hole in the mounting seat, and the mounting seat is detachably mounted on the upper die through a bolt.

Through adopting above-mentioned technical scheme, set up the bolt hole on the mount pad, install the mount pad on last mould through the bolt, bolted connection's mode is connected reliably, is dismantled conveniently.

Optionally, a pressing plate is arranged at a position, corresponding to the male die, on the upper die, one end of the discharging hook is movably mounted in the mounting seat, so that the discharging hook is close to or far away from the pressing plate, a first elastic element is arranged in the mounting seat, the first elastic element is arranged at one side, far away from the pressing plate, of the discharging hook, and one side of the first elastic element is abutted to the discharging hook.

Through adopting above-mentioned technical scheme, set up first elastic element in the mount pad, compress tightly the hook of unloading on the mount pad through first elastic element, the hook of unloading can overcome first elastic element's elasticity and to one side skew after touchhing the work piece at down in-process, after through the work piece position, the hook of unloading can reset rapidly under first elastic element's effect.

Optionally, a mounting hole for mounting a first elastic element is formed in the mounting seat, the mounting hole penetrates through the mounting seat, an end cover is detachably arranged on the mounting seat, the end cover is located at one end, far away from the pressing plate, of the mounting seat, and one end, far away from the discharging hook, of the first elastic element abuts against the end cover.

Through adopting above-mentioned technical scheme, offer the mounting hole that is used for installing first elastic element on the mount pad, the end cover is installed and is sealed the mounting hole on the mount pad, when changing first elastic element, only need take the end cover apart alright take out first elastic element, alright change first elastic element, make convenient operation.

Optionally, an avoiding hole for the discharging hook rod body to penetrate is formed in the mounting seat, and the size of the avoiding hole is larger than that of the discharging hook, so that the discharging hook is close to or far away from the pressing plate in the avoiding hole.

Through adopting above-mentioned technical scheme, set up on the mount pad and dodge the hole, the hook of unloading passes and dodges hole movable mounting on the mount pad, and the size of dodging the hole is greater than the hook of unloading, makes the hook of unloading touch the work piece and make and can swing to one side and cross the work piece in dodging the hole in the punching press process.

Optionally, a hanging and connecting block is arranged on the side wall of one end, installed in the installation seat, of the unloading hook, a hanging and connecting groove is formed in the installation seat, corresponding to the hanging and connecting block, the size of the hanging and connecting groove is larger than that of the hanging and connecting block, the hanging and connecting block is enabled to rotate in the hanging and connecting groove in a small angle, and the unloading hook is arranged in the hanging and connecting groove.

Through adopting above-mentioned technical scheme, through set up the hookup piece on the hook of unloading, the hook of unloading is established on the mount pad, makes the other end of the hook of unloading can do swing motion.

Optionally, a hook is arranged at one end, far away from the hooking block, of the unloading hook, the hook is arranged at one side, close to the pressing plate, of the unloading hook, a chamfer is arranged at one end, far away from the hooking block, of the hook, and the hook tip of the hook is attached to the outer side face of the male die.

By adopting the technical scheme, one end of the hook is provided with the chamfer, and when the unloading hook touches a workpiece in the downward movement process of the upper die, the unloading hook can swing to one side under the action of the chamfer, so that the hook passes through the position of the workpiece; after the workpiece passes through the hook, the hook is quickly reset, and in the process of upward movement after the upper die finishes stamping, the hook can hook the workpiece to release the workpiece from the die; the contour of the hook tip part of the hook is attached to the contour of the male die, so that the contact area of the hook and a workpiece can be increased, the stress of the hook is uniform, and the service life of the hook is prolonged.

Optionally, a positioning groove is formed in a position, close to the hanging and connecting block, of the mounting seat, the positioning groove is located in one side, away from the upper die, of the hanging and connecting block, the positioning groove is formed in the moving direction of the upper die, the positioning groove is in sliding fit with the hanging and connecting block, a second elastic element is arranged in the positioning groove, and two ends of the second elastic element are respectively abutted to the hanging and connecting block and the bottom of the positioning groove.

By adopting the technical scheme, the positioning groove is formed in the mounting seat, the unloading hook hooks the workpiece when the upper die moves upwards, the upper die continues to move upwards, the unloading hook is pulled downwards due to the gravity of the workpiece and the resistance between the workpiece and the die, the hooking block compresses the second elastic element and slides into the positioning groove for positioning, and when the workpiece is clamped on the male die, the unloading hook cannot deflect to one side to cause pulling and falling; after the workpiece is taken out, the second elastic element pushes the discharging hook out of the positioning groove, so that the discharging hook returns to the initial position to prepare for next punching.

Optionally, the second elastic element is a spring, a cylindrical guide rod is coaxially arranged in the second elastic element, the length of the guide rod is smaller than the depth of the positioning groove, and one end of the guide rod is fixed at the bottom of the positioning groove.

By adopting the technical scheme, the guide rod is arranged in the positioning groove, so that the bending phenomenon of the return spring in the compression process can be prevented; the unloading hook moves downwards after hooking a workpiece, the reset spring is compressed, the clamping block is inserted into the positioning groove, the clamping block is pressed on the guide rod, the unloading hook is not influenced by the pull-off force of the workpiece in the working process, the situation that the workpiece is pulled off due to different stress of the unloading hooks on two sides is prevented, and the unloading hook is more stable in the working process due to the design of the guide rod.

Optionally, an avoiding groove is formed in the lower die corresponding to the discharging hook.

Through adopting above-mentioned technical scheme, set up the groove of dodging in the position that corresponds the unloading hook on the lower mould, prevent that the unloading hook from sending into the collision with the lower mould in stamping engineering.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the detachable mounting seat is arranged on the upper die, and the unloading hook is arranged on the mounting seat, so that the detachable function of the automatic unloading structure is realized, and the automatic unloading structure can be replaced by detaching the mounting seat when a workpiece is replaced in the maintenance process, so that the maintenance is more convenient;

2. the positioning groove is formed below the hanging block, the elastic element is arranged in the groove, when the unloading hook hooks the workpiece and pulls outwards, the gravity and the resistance of the workpiece enable the unloading hook to overcome the elasticity of the elastic element, the hanging blocks on the two sides of the unloading hook slide into the positioning groove, the unloading hook can be prevented from swinging towards the two sides in the unloading process, and therefore the positioning effect is achieved, and even when the workpiece needs large taking-out force, the workpiece is not easy to pull off;

3. through set up reset spring and guide arm in the constant head tank, guide arm length is less than the degree of depth of constant head tank, make the hook of unloading catch the work piece and carry out the in-process of unloading, the hookup piece compresses reset spring and butt on the guide arm under the effect of the gravity and the resistance of work piece, make the hook of unloading when the inhomogeneous work piece of the irregular atress of some pulling structures, the hook of unloading all can be in same position, the prevention is under the different circumstances of the power of taking off of the pulling that meets the same work piece different positions, the hook of unloading of different positions draws elongation different, make the work piece take place the slope, the condition that leads to the work piece to take off takes place.

Drawings

FIG. 1 is a schematic view of the overall structure of embodiment 1 of the present application;

FIG. 2 is an enlarged view of area A of FIG. 1;

FIG. 3 is an exploded view of the structure of the automatic discharging structure in embodiment 1 of the present application;

FIG. 4 is a schematic structural diagram of embodiment 2 of the present application;

fig. 5 is a schematic structural diagram of embodiment 3 of the present application.

Reference numerals: 1. an upper die; 11. a mounting seat; 111. avoiding holes; 112. mounting holes; 113. a hanging groove; 114. positioning a groove; 12. a discharging hook; 121. a hanging block; 122. a hook; 123. chamfering; 13. a first elastic element; 14. pressing a plate; 15. an end cap; 16. a second elastic element; 17. a guide bar; 18. a linear bearing; 2. a lower die; 21. a male die; 22. an avoidance groove; 23. a guide post; 3. and (5) a workpiece.

Detailed Description

Example 1

The embodiment of the application discloses an automatic discharging stamping die convenient to maintain, and with reference to fig. 1 and 2, the automatic discharging stamping die comprises an upper die 1 and a lower die 2, wherein a male die 21 is arranged at the middle position of the lower die 2, a pressing plate 14 is arranged on the upper die 1 at a position corresponding to the male die 21, and guide posts 23 and linear bearings 18 which are matched with each other are arranged at four corners of the upper die 1 and the lower die 2, so that the upper die 1 and the lower die 2 have a determined relative position; a detachable mounting seat 11 is arranged on the upper die 1, and the mounting seat 11 is positioned at two sides of a pressure plate 14; a discharging hook 12 for detaching the workpiece 3 from the punch 21 is elastically connected in the mounting seat 11; avoidance grooves 22 are formed in the positions, corresponding to the discharging hooks 12, of the two sides of the lower die 2, and in the stamping process, the discharging hooks 12 are inserted into the grooves to prevent the lower die 2 from being collided.

Referring to fig. 3, a convex hooking block 121 is integrally arranged on each of two sides of the top end of the discharging hook 12, and the discharging hook 12 is in a T-shaped structure when viewed from the position of the pressing plate 14 to the discharging hook 12; a hook 122 is arranged on one side, close to the pressure plate 14, of the bottom of the discharging hook 12 and used for detaching the formed workpiece 3, the position of the hook 122 is lower than that of the pressure plate 14, and the hook tip part of the hook 122 is in an arc shape which is attached to the outer contour of the punch 21; a chamfer 123 is provided at the bottom of the hook 122, and during the descending of the upper die 1, the discharge hook 12 is swung outward along the contour of the chamfer 123 after contacting the workpiece 3, so that the hook 122 partially passes through the workpiece 3 smoothly.

Referring to fig. 2 and 3, a rectangular avoiding hole 111 for installing the unloading hook 12 is formed in one side of the installation seat 11 close to the pressing plate 14, the avoiding hole 111 is formed perpendicular to the upper die 1, the unloading hook 12 passes through the avoiding hole 111 and is installed on the installation seat 11, the hook 122 of the unloading hook 12 faces the pressing plate 14, the size of the avoiding hole 111 in the direction close to or far from the pressing plate 14 is larger than that of the unloading hook 12, and the unloading hook 12 can be close to or far from the pressing plate 14 in the avoiding hole 111. A hanging groove 113 is formed in the position, corresponding to the hanging block 121, of one side, close to the upper die 1, of the mounting seat 11, the unloading hook 12 is hung and installed in the hanging groove 113 through the hanging block 121, the size of the hanging groove 113 is slightly larger than that of the hanging block 121, the unloading hook 12 can swing, and the hook 122 of the unloading hook 12 can smoothly pass through the position of the workpiece 3 in the stamping process of the upper die 1.

The mounting seat 11 is provided with a mounting hole 112 for mounting the first elastic element 13, the mounting hole 112 is perpendicular to the axial direction of the avoiding hole 111, the mounting hole 112 is located at one end of the mounting seat 11 far away from the pressing plate 14, one end of the mounting hole 112 is communicated with the avoiding hole 111, and the other end of the mounting hole 112 penetrates through the mounting seat 11. An end cover 15 is further arranged on the mounting seat 11, and the end cover 15 is detachably mounted on the mounting seat 11 through bolts and used for closing the mounting hole 112. The first elastic element 13 is provided as a spring, the first elastic element 13 is installed in the installation hole 112, one end of the first elastic element 13 abuts against the discharging hook 12, and the other end abuts against the end cover 15, so that the discharging hook 12 can be quickly reset after crossing the workpiece 3. The mounting seat 11 is provided with a countersunk hole, the upper die 1 is provided with a threaded hole at a position corresponding to the countersunk hole, and the mounting seat 11 is mounted on the upper die 1 through a bolt.

The implementation principle of the embodiment 1 of the application is as follows: during the punching process, the discharge hook 12 moves downwards along with the upper die 1, and when the hook 122 of the discharge hook 12 touches the workpiece 3, the discharge hook 12 swings outwards against the elastic force of the first elastic element 13 under the action of the chamfer 123 at the bottom of the hook 122; the discharge hook 12 continues to move downwards, the hook 122 of the discharge hook 12 passes through the position of the workpiece 3, and the discharge hook 12 is restored to the original position under the action of the force of the first elastic element 13; the upper die 1 continues to move downwards to contact with the workpiece 3, and the stamping process is completed; after the punching is finished, the upper die 1 moves upwards, the unloading hook 12 moves upwards along with the punching, and the hook 122 of the unloading hook 12 hooks the workpiece 3; and the upper die 1 continues to move upwards, the workpiece 3 is unloaded from the male die 21 by the unloading hook 12, and the upper die 1 stops operating when moving to the top dead center position, so that automatic unloading is completed.

Meanwhile, the mounting seat 11 is mounted on the upper die 1 through a bolt, when the discharging hook 12 and the first elastic element 13 are replaced, the discharging hook 12 and the first elastic element 13 can be replaced only by detaching the mounting seat 11, and the automatic discharging structure is convenient to detach and maintain. The end cover 15 is arranged on one side of the mounting seat 11, which is located in the mounting hole 112, so that when only the first elastic element 13 needs to be replaced, the first elastic element 13 can be replaced only by detaching the end cover 15, and the operation is convenient.

Example 2

Referring to fig. 4, the difference between this embodiment and embodiment 1 is that a positioning groove 114 is further disposed on the mounting base 11, the positioning groove 114 is located at the bottom of the hanging block 121 on both sides, and the positioning groove 114 is slidably engaged with the hanging block 121. The positioning groove 114 is further provided with a second elastic element 16, the second elastic element 16 is a spring, and two ends of the second elastic element 16 are respectively abutted against the hanging block 121 and the bottom of the positioning groove 114.

The working principle of embodiment 2 of the application is as follows: through setting up constant head tank 114 and second elastic element 16 in the bottom that articulates piece 121, make unloading hook 12 catch on behind the work piece 3, under the effect of gravity and the resistance of work piece 3, articulate piece 121 and overcome the elasticity of second elastic element 16 by the pulling downwards and slide in constant head tank 114, make unloading hook 12 can't do the swing motion in constant head tank 114, thereby realize a locate function, ensure that unloading hook 12 can not incline to the outside at the in-process of taking out work piece 3, prevent that work piece 3 from pulling off, make automatic discharge mechanism work more stable.

Example 3

Referring to fig. 5, the present embodiment is different from embodiment 2 in that a guide rod 17 is further disposed along the axis of the second elastic element 16, the length of the guide rod 17 is less than the depth of the positioning groove 114, one end of the guide rod 17 is fixed at the bottom of the positioning groove 114, and the lengths of the guide rods 17 on both sides are the same.

The working principle of embodiment 3 of the application is as follows: the guide rod 17 is arranged in the positioning groove 114, so that the second elastic element 16 has guidance in the process of being compressed, and the second elastic element 16 is prevented from being bent; meanwhile, when the workpiece 3 is pulled by the unloading hook 12, the hanging block 121 abuts against the guide rod 17, so that two sides of the unloading hook 12 can be positioned through the guide rod 17, and the unloading hook 12 is prevented from being obliquely clamped in the positioning groove 114; the discharge hooks 12 on both sides of the pressing plate 14 are pressed on the guide rods 17 at the same time, so that the situation that when the irregular workpiece 3 is pulled, the discharge hooks 12 on both sides are stressed differently, one side of the discharge hook 12 is stretched for a long distance, and the other side of the discharge hook 12 is stretched for a short distance, so that the workpiece 3 is obliquely pulled off can be prevented.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (10)

1. The utility model provides an automatic discharge stamping die convenient to maintain, includes mould (1) and lower mould (2), be provided with terrace die (21) on lower mould (2), its characterized in that: the upper die (1) is detachably provided with a mounting seat (11), and the mounting seat (11) is elastically provided with a discharging hook (12).

2. The automatic discharging stamping die convenient to maintain as claimed in claim 1, wherein: the die is characterized in that a through hole is formed in the mounting seat (11), a threaded hole is formed in the upper die (1) corresponding to the through hole in the mounting seat (11), and the mounting seat (11) is detachably mounted on the upper die (1) through a bolt.

3. The automatic discharging stamping die convenient to maintain as claimed in claim 1, wherein: the die is characterized in that a pressing plate (14) is arranged on the upper die (1) corresponding to the position of the male die (21), one end of the unloading hook (12) is movably mounted in the mounting seat (11) to enable the unloading hook (12) to be close to or far away from the pressing plate (14), a first elastic element (13) is arranged in the mounting seat (11), the first elastic element (13) is arranged on one side, far away from the pressing plate (14), of the unloading hook (12), and one side of the first elastic element (13) is abutted to the unloading hook (12).

4. The automatic discharging stamping die convenient to maintain as claimed in claim 3, wherein: the mounting base (11) is provided with a mounting hole (112) for mounting a first elastic element (13), the mounting hole (112) penetrates through the mounting base (11), an end cover (15) is detachably arranged on the mounting base (11), the end cover (15) is located at one end, away from the pressing plate (14), of the mounting base (11), and one end, away from the discharging hook (12), of the first elastic element (13) abuts against the end cover (15).

5. The automatic discharging stamping die convenient to maintain as claimed in claim 4, wherein: the mounting seat (11) is provided with an avoiding hole (111) for the rod body part of the unloading hook (12) to penetrate through, the size of the avoiding hole (111) is larger than that of the unloading hook (12), and the unloading hook (12) is made to be close to or far away from the pressing plate (14) in the avoiding hole (111).

6. The automatic discharging stamping die convenient to maintain as claimed in claim 5, wherein: one end of the unloading hook (12) installed in the installation seat (11) is provided with a hanging and connecting block (121) on the side wall, a hanging and connecting groove (113) is formed in the position, corresponding to the hanging and connecting block (121), of the installation seat (11), the size of the hanging and connecting groove (113) is larger than that of the hanging and connecting block (121), the hanging and connecting block (121) is enabled to rotate in the hanging and connecting groove (113) at a small angle, and the unloading hook (12) is hung in the hanging and connecting groove (113).

7. The automatic discharging stamping die convenient to maintain as claimed in claim 6, wherein: one end, far away from the hooking block (121), of the unloading hook (12) is provided with a hook (122), the hook (122) is arranged on one side, close to the pressing plate (14), of the unloading hook (12), a chamfer (123) is arranged on one end, far away from the hooking block (121), of the hook (122), and the hook tip of the hook (122) is attached to the outer side face of the male die (21).

8. The automatic discharge stamping die convenient to maintain of claim 7, wherein: a positioning groove (114) is formed in the position, close to the hanging block (121), of the mounting seat (11), the positioning groove (114) is located on one side, away from the upper die (1), of the hanging block (121), the positioning groove (114) is formed in the moving direction of the upper die (1), the positioning groove (114) is in sliding fit with the hanging block (121), a second elastic element (16) is arranged in the positioning groove (114), and two ends of the second elastic element (16) are respectively abutted to the hanging block (121) and the bottom of the positioning groove (114).

9. The automatic discharge stamping die convenient to maintain of claim 8, wherein: the second elastic element (16) is a spring, a cylindrical guide rod (17) is coaxially arranged in the second elastic element (16), the length of the guide rod (17) is smaller than the depth of the positioning groove (114), and one end of the guide rod (17) is fixed at the bottom of the positioning groove (114).

10. The automatic discharging stamping die convenient to maintain as claimed in claim 1, wherein: and an avoiding groove (22) is formed in the lower die (2) corresponding to the discharging hook (12).

Images