CN213968585U - A trompil mould that is used for intensive trompil of built-in mounting of display - Google Patents
A trompil mould that is used for intensive trompil of built-in mounting of display Download PDFInfo
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- CN213968585U CN213968585U CN202022930058.XU CN202022930058U CN213968585U CN 213968585 U CN213968585 U CN 213968585U CN 202022930058 U CN202022930058 U CN 202022930058U CN 213968585 U CN213968585 U CN 213968585U
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Abstract
The utility model relates to a hardware mould field, concretely relates to a tapping mould for intensive tapping of built-in mounting of display, from top to bottom include upper die, well mould, lower mould and base in proper order; the middle die is elastically connected below the upper die along the longitudinal direction, and the lower die is fixedly connected to the base; the punching die is characterized in that a plurality of punches are fixedly connected to the bottom of the upper die, guide holes corresponding to the punches are formed in the middle die, and punched holes corresponding to the punches are formed in the lower die. The beneficial effects of the utility model reside in that: in the blanking process, the middle die and the lower die can tightly press the built-in fixing piece of the display, so that the surface of the built-in fixing piece of the display is prevented from deforming or cracking due to the fact that holes are too dense and the size of the holes is small; the supporting rod can prevent the metal surface from extending downwards due to high-speed impact of the punch in the hole of the built-in fixing piece of the display, so that the condition that the sizes of the holes are not consistent is avoided, and the punching precision is improved.
Description
Technical Field
The utility model relates to a hardware mould field, concretely relates to trompil mould that is used for the intensive trompil of built-in mounting of display.
Background
The built-in fixed piece of display belongs to one kind of hardware, and its trompil mould is through the mode of cold stamping, directly punch the corresponding hole in display built-in fixed piece department of cutting out.
However, some of the built-in fixing members of the display often need to be densely perforated, such as heat dissipation holes, which have small hole diameters and small spaces between adjacent holes, so that the built-in fixing members of the display are easily deformed by direct punching, and the adjacent holes are easily cracked due to large pulling force applied to the connecting portions between the holes. In addition, once the built-in fixing piece of the display deforms or cracks, the accuracy of the hole opening is affected, and the sizes of the holes are inconsistent.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that will solve is: the punching die for densely punching the built-in fixing piece of the display can avoid deformation and cracking of the built-in fixing piece of the display and improve punching precision.
In order to solve the above technical problem, the utility model discloses a one of them technical scheme is: a hole forming die for densely forming holes in built-in fixing pieces of a display sequentially comprises an upper die, a middle die, a lower die and a base from top to bottom;
the middle die is elastically connected below the upper die along the longitudinal direction, and the lower die is fixedly connected to the base;
the bottom of the upper die is fixedly connected with a plurality of punches, the middle die is provided with guide holes corresponding to the punches, and the lower die is provided with punched holes corresponding to the punches;
offer the counter bore that corresponds with the guiding hole on the base, sliding connection has branch in the counter bore, the bottom of branch is connected with the counter bore bottom through first spring, just in the top of branch extends to the drift the upper surface with the lower mould when being located the highest point is located on same horizontal plane.
Specifically, well mould top is equipped with first guide post, go up and set up the first guiding hole that corresponds with first guide post on the mould, first guide post sliding connection is in first guiding hole, first guide post outside cover is equipped with the second spring, second spring one end and well mould fixed connection, the other end and last mould fixed connection.
Specifically, the base top is equipped with the second guide post, go up and set up the second guiding hole that corresponds with the second guide post on the mould, second guide post sliding connection is in the second guiding hole, the outside cover of second guide post is equipped with the third spring, third spring one end and base fixed connection, the other end and last mould fixed connection.
Specifically, the drift includes the big footpath section and the path section that integrative set up, big footpath section and last mould fixed connection, the junction of big footpath section and path section is linear transition.
Specifically, the guiding hole includes major diameter portion and minor diameter portion that integrative set up, the junction of major diameter portion and minor diameter portion is linear transition, the diameter of major diameter portion equals with the diameter of drift major diameter section, the diameter of minor diameter portion equals with the diameter of drift minor diameter section.
The beneficial effects of the utility model reside in that: in the blanking process, the middle die and the lower die can tightly press the built-in fixing piece of the display, so that the surface of the built-in fixing piece of the display is prevented from deforming or cracking due to the fact that holes are too dense and the size of the holes is small; the supporting rod can prevent the metal surface from extending downwards at the position of a hole of a built-in fixing piece of the display due to high-speed impact of the punch, so that the condition that the sizes of the holes are inconsistent is avoided, and the punching precision is improved; the supporting rod can push the excess materials back into the holes of the built-in fixing pieces of the display again, so that the excess materials can be collected conveniently, meanwhile, a structure for collecting the excess materials does not need to be additionally arranged on the die, and the die sinking cost is reduced.
Drawings
FIG. 1 is a schematic view of an internal structure of a tapping mold for densely tapping built-in fixing members of a display according to an embodiment of the present invention;
FIG. 2 is a schematic view of an external structure of a tapping mold for densely tapping built-in fixing members of a display according to an embodiment of the present invention;
description of reference numerals:
1. an upper die; 2. a middle mold; 21. a guide hole; 22. a first guide post; 23. a second spring; 3. a lower die; 31. punching; 4. a base; 41. a counter bore; 42. a strut; 43. a first spring; 44. a second guide post; 45. a third spring; 5. a punch; 51. a large diameter section; 52. a small diameter section.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 to 2, the tapping die for densely tapping built-in fixing members of a display according to the present invention includes an upper die 1, a middle die 2, a lower die 3, and a base 4 in sequence from top to bottom;
the middle die 2 is elastically connected below the upper die 1 along the longitudinal direction, and the lower die 3 is fixedly connected on the base 4;
the bottom of the upper die 1 is fixedly connected with a plurality of punches 5, the middle die 2 is provided with guide holes 21 corresponding to the punches 5, and the lower die 3 is provided with punched holes 31 corresponding to the punches 5;
the counter bore 41 corresponding to the guiding hole 21 is provided on the base 4, a supporting rod 42 is slidably connected in the counter bore 41, the bottom end of the supporting rod 42 is connected with the bottom end of the counter bore 41 through a first spring 43, the top end of the supporting rod 42 extends into the punched hole 31, and the top end of the supporting rod 42 is located on the same horizontal plane with the upper surface of the lower die 3 when located at the highest position.
The utility model discloses a theory of operation does: after the built-in fixing piece of the display is placed on the lower die 3, the upper die 1 is pushed by an external hydraulic press device to be pressed downwards, the middle die 2 is driven to be synchronously pressed downwards while the upper die 1 is pressed downwards, and after the middle die 2 contacts the built-in fixing piece of the display, the built-in fixing piece of the display is clamped by the middle die 2 and the lower die 3, so that the built-in fixing piece of the display is prevented from deforming or cracking in the blanking process;
and then the upper die 1 is pressed downwards continuously, the punch 5 on the upper die 1 penetrates through the guide hole 21 and is in surface contact with the built-in fixing piece of the display, and the support rod 42 is supported below the built-in fixing piece of the display and can be pressed downwards by the pressure of the punch 5 to shrink into the counter bore 41, so that the residual material punched at the hole of the built-in fixing piece of the display is always clamped between the punch 5 and the support rod 42 in the process of further punching downwards by the punch 5, and the phenomenon that the metal surface extends downwards due to high-speed impact of the punch 5 at the hole of the built-in fixing piece of the display can be avoided, and further the situation that the sizes of the holes are inconsistent is avoided.
When the punch 5 rises and recovers, the supporting rod 42 rebounds upwards and pushes the residual materials punched on the built-in fixing piece of the display back again and is embedded into the hole of the built-in fixing piece of the display, after the finished built-in fixing piece of the display is taken down by a worker, the residual materials can be shaken off only by shaking the built-in fixing piece of the display, the collection of the residual materials is facilitated, meanwhile, a structure for collecting the residual materials is not required to be additionally arranged on a die, and the die sinking cost is reduced.
As can be seen from the above description, the utility model has the advantages that: in the blanking process, the middle die and the lower die can tightly press the built-in fixing piece of the display, so that the surface of the built-in fixing piece of the display is prevented from deforming or cracking due to the fact that holes are too dense and the size of the holes is small; the supporting rod can prevent the metal surface from extending downwards at the position of a hole of a built-in fixing piece of the display due to high-speed impact of the punch, so that the condition that the sizes of the holes are inconsistent is avoided, and the punching precision is improved; the supporting rod can push the excess materials back into the holes of the built-in fixing pieces of the display again, so that the excess materials can be collected conveniently, meanwhile, a structure for collecting the excess materials does not need to be additionally arranged on the die, and the die sinking cost is reduced.
Further, well mould 2 top is equipped with first guide post 22, go up mould 1 and go up the first guiding hole 21 of offering with first guide post 22 corresponding, first guide post 22 sliding connection is in first guiding hole 21, first guide post 22 outside cover is equipped with second spring 23, second spring 23 one end and well mould 2 fixed connection, the other end and last mould 1 fixed connection.
It can be known from the above-mentioned description that first guide post can guarantee between well mould and the last mould only can follow the axis direction motion of first guide post, finishes the back when the punching press, goes up mould upward movement, thereby the second spring kick-backs and can make and go up the mould and separate automatically between the mould.
Further, base 4 top is equipped with second guide post 44, go up mould 1 and go up the second guiding hole 21 of offering corresponding with second guide post 44, second guide post 44 sliding connection is in second guiding hole 21, the outside cover of second guide post 44 is equipped with third spring 45, third spring 45 one end and base 4 fixed connection, the other end with go up mould 1 fixed connection.
According to the above description, the second guide post can ensure that the upper die and the base can only move relatively along the axis direction of the second guide post, and after the punching is finished, the third spring can transfer part of the pressure of the upper die to the base, so that the length of the pressing time of the lower die is reduced, and the service life of the lower die is prolonged.
Further, the punch 5 comprises a large-diameter section 51 and a small-diameter section 52 which are integrally arranged, the large-diameter section 51 is fixedly connected with the upper die 1, and the joint of the large-diameter section 51 and the small-diameter section 52 is in linear transition.
From the above description, the large diameter section of the punch can reduce the pressure at the joint of the punch and the upper die, so that the damage to the upper die in the process of pressing down the punch is avoided.
Further, the guide hole 21 includes a large diameter portion and a small diameter portion integrally formed, a connection portion of the large diameter portion and the small diameter portion is in a linear transition, a diameter of the large diameter portion is equal to a diameter of the large diameter section 51 of the punch 5, and a diameter of the small diameter portion is equal to a diameter of the small diameter section 52 of the punch 5.
Example one
A hole forming die for densely forming holes in built-in fixing pieces of a display sequentially comprises an upper die 1, a middle die 2, a lower die 3 and a base 4 from top to bottom;
the middle die 2 is elastically connected below the upper die 1 along the longitudinal direction, and the lower die 3 is fixedly connected on the base 4;
the bottom of the upper die 1 is fixedly connected with a plurality of punches 5, the middle die 2 is provided with guide holes 21 corresponding to the punches 5, and the lower die 3 is provided with punched holes 31 corresponding to the punches 5;
a counter bore 41 corresponding to the guide hole 21 is formed in the base 4, a support rod 42 is connected in the counter bore 41 in a sliding mode, the bottom end of the support rod 42 is connected with the bottom end of the counter bore 41 through a first spring 43, the top end of the support rod 42 extends into the punched hole 31, and when the top end of the support rod 42 is located at the highest position, the top end of the support rod 42 and the upper surface of the lower die 3 are located on the same horizontal plane;
a first guide post 22 is arranged at the top of the middle die 2, a first guide hole 21 corresponding to the first guide post 22 is formed in the upper die 1, the first guide post 22 is connected in the first guide hole 21 in a sliding mode, a second spring 23 is sleeved on the outer side of the first guide post 22, one end of the second spring 23 is fixedly connected with the middle die 2, and the other end of the second spring 23 is fixedly connected with the upper die 1;
a second guide post 44 is arranged at the top of the base 4, a second guide hole 21 corresponding to the second guide post 44 is formed in the upper die 1, the second guide post 44 is connected in the second guide hole 21 in a sliding manner, a third spring 45 is sleeved outside the second guide post 44, one end of the third spring 45 is fixedly connected with the base 4, and the other end of the third spring is fixedly connected with the upper die 1;
the punch 5 comprises a large-diameter section 51 and a small-diameter section 52 which are integrally arranged, the large-diameter section 51 is fixedly connected with the upper die 1, the joint of the large-diameter section 51 and the small-diameter section 52 is in linear transition, the guide hole 21 comprises a large-diameter section and a small-diameter section which are integrally arranged, the joint of the large-diameter section and the small-diameter section is in linear transition, the diameter of the large-diameter section is equal to that of the large-diameter section 51 of the punch 5, and the diameter of the small-diameter section is equal to that of the small-diameter section 52 of the punch 5.
To sum up, the utility model provides a beneficial effect lies in: in the blanking process, the middle die and the lower die can tightly press the built-in fixing piece of the display, so that the surface of the built-in fixing piece of the display is prevented from deforming or cracking due to the fact that holes are too dense and the size of the holes is small; the supporting rod can prevent the metal surface from extending downwards at the position of a hole of a built-in fixing piece of the display due to high-speed impact of the punch, so that the condition that the sizes of the holes are inconsistent is avoided, and the punching precision is improved; the supporting rod can push the excess materials back into the holes of the built-in fixing pieces of the display again, so that the excess materials can be collected conveniently, meanwhile, a structure for collecting the excess materials does not need to be additionally arranged on the die, and the die sinking cost is reduced. First guide post can guarantee between well mould and the last mould only can follow the axis direction motion of first guide post, finishes the back when the punching press, goes up mould upward movement, thereby the second spring kick-backs and can make and go up the mould and separate automatically between the mould. The second guide post can guarantee to go up the mould and the base between only can follow the axis direction relative motion of second guide post, and after the punching press finishes, the third spring can shift the partial pressure of going up the mould to the base on, and it is long when reducing the pressurized of lower mould to the life-span of extension lower mould. The big footpath section of drift can make the drift and the pressure that goes up the mould junction reduce to avoid the drift to push down the in-process and cause the damage to going up the mould.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (5)
1. A hole forming die for densely forming holes in built-in fixing pieces of a display is characterized by comprising an upper die, a middle die, a lower die and a base from top to bottom in sequence;
the middle die is elastically connected below the upper die along the longitudinal direction, and the lower die is fixedly connected to the base;
the bottom of the upper die is fixedly connected with a plurality of punches, the middle die is provided with guide holes corresponding to the punches, and the lower die is provided with punched holes corresponding to the punches;
offer the counter bore that corresponds with the guiding hole on the base, sliding connection has branch in the counter bore, the bottom of branch is connected with the counter bore bottom through first spring, just in the top of branch extends to the drift the upper surface with the lower mould when being located the highest point is located on same horizontal plane.
2. The hole forming die for densely forming holes in a built-in fixing member of a display device according to claim 1, wherein a first guide post is disposed at a top of the middle die, a first guide hole corresponding to the first guide post is disposed on the upper die, the first guide post is slidably connected in the first guide hole, a second spring is sleeved outside the first guide post, one end of the second spring is fixedly connected to the middle die, and the other end of the second spring is fixedly connected to the upper die.
3. The hole forming die for densely forming holes in a built-in fixing member of a display device according to claim 1, wherein a second guide post is disposed at a top of the base, a second guide hole corresponding to the second guide post is formed in the upper die, the second guide post is slidably connected in the second guide hole, a third spring is sleeved outside the second guide post, one end of the third spring is fixedly connected with the base, and the other end of the third spring is fixedly connected with the upper die.
4. The tapping die for densely tapping the built-in fixing member of the display device as claimed in claim 1, wherein the punch comprises a large diameter section and a small diameter section which are integrally formed, the large diameter section is fixedly connected with the upper die, and a joint of the large diameter section and the small diameter section is in a linear transition.
5. The tapping die for densely tapping the internal fixing member of the display device as claimed in claim 4, wherein the guiding hole comprises a large diameter portion and a small diameter portion integrally formed, a junction of the large diameter portion and the small diameter portion is in a linear transition, a diameter of the large diameter portion is equal to a diameter of the large diameter portion of the punch, and a diameter of the small diameter portion is equal to a diameter of the small diameter portion of the punch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022930058.XU CN213968585U (en) | 2020-12-07 | 2020-12-07 | A trompil mould that is used for intensive trompil of built-in mounting of display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022930058.XU CN213968585U (en) | 2020-12-07 | 2020-12-07 | A trompil mould that is used for intensive trompil of built-in mounting of display |
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| Publication Number | Publication Date |
|---|---|
| CN213968585U true CN213968585U (en) | 2021-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022930058.XU Active CN213968585U (en) | 2020-12-07 | 2020-12-07 | A trompil mould that is used for intensive trompil of built-in mounting of display |
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| CN (1) | CN213968585U (en) |
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