CN215657319U

CN215657319U - Punching switching device

Info

Publication number: CN215657319U
Application number: CN202120899893.3U
Authority: CN
Inventors: 汪忠林; 王铭; 杨根
Original assignee: Yibin Puyi Automobile Technology Co ltd
Current assignee: Yibin Puyi Automobile Technology Co ltd
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-01-28
Anticipated expiration: 2031-04-28

Abstract

The utility model belongs to the field of stamping dies, and particularly relates to a punching switching device. The switching mechanism comprises an upper die holder and a lower die holder, and further comprises an air cylinder device, a driving pulley, a switching base and a limiting device, wherein the air cylinder device is fixedly connected to the upper die holder and comprises a telescopic pin, the telescopic pin of the air cylinder device is fixedly connected with an installation end, the driving pulley and the upper die holder are in sliding fit with a sliding chute through a sliding block, a first driving surface, a second driving surface, a third driving surface and a fourth driving surface are arranged in the switching mechanism, and when the first driving surface is matched with the fourth driving surface, the switching base is lifted in the vertical direction of the switching base; when the second matching surface is matched with the third matching surface, the switching base descends in the vertical direction. According to the utility model, by introducing the punching switching device and utilizing one set of die, the punching trimming operation of the position with the special-shaped hole and the trimming operation of the position without the special-shaped hole are realized. The utility model has stable structure and strong applicability.

Description

Punching switching device

Technical Field

The utility model belongs to the field of stamping dies, and particularly relates to a punching switching device.

Background

The punching is a forming method in which external force is applied to a plate, a strip, a pipe, a profile and the like by a press machine and a die to cause plastic deformation or separation, thereby obtaining a required shape and size, and the punching is an important step in a punching process. In the subsequent trimming process of the inner plate of the side wall of the automobile, in order to meet the configuration requirements of different types of automobiles, the special-shaped hole needs to be punched at the trimming position with the special-shaped hole, generally, trimming positions with the special-shaped hole are also distributed on the molded surface of the inner plate of the side wall of the automobile, at this time, at least one set of punching trimming die for the special-shaped hole and one set of trimming die for the special-shaped hole are needed to meet the trimming requirements, at this time, the whole device is complex, multiple factors such as positioning, clamping and the like need to be considered at different trimming positions, and the cost of the multiple dies is too high.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the utility model can realize the punching and trimming operation of the position with the special-shaped hole and the trimming operation of the position without the special-shaped hole by using one set of die and the punching switching device.

In order to solve the technical problems, the utility model adopts the following technical scheme: the punching switching device comprises an upper die base and a lower die base, the lower die base is provided with a first groove for punching and trimming, and the punching switching device also comprises an air cylinder device, a driving pulley, a switching base and a limiting device, wherein the air cylinder device is fixedly connected to the upper die base and comprises a telescopic pin, one end of the driving pulley, which is close to the telescopic pin, is an installation end, the telescopic pin of the air cylinder device is fixedly connected with the installation end, and the driving pulley and the upper die base are in sliding fit with a sliding groove through a sliding block; the end of the driving pulley, which is far away from the mounting end, is a mating end, a first bump is arranged on the mating end, a first driving surface is arranged at the end of the first bump, which is far away from the mounting end, an adjusting end is arranged at the end of the driving pulley, which is far away from the upper die holder, a second bump is fixedly arranged on the adjusting end, a second driving surface is arranged at the end of the second bump, which is far away from the adjusting end, the end of the switching base, which is close to the adjusting end, is the top of the switching base, a third bump is arranged at the top of the switching base, a third driving surface and a fourth driving surface are arranged on the third bump, the third driving surface corresponds to the second driving surface in position, and the fourth driving surface corresponds to the first driving surface in position; the bottom of the switching base is provided with a punching and trimming device, the punching and trimming device corresponds to the first groove in position, the limiting device is fixedly connected to the upper die base and forms an accommodating cavity after being fixed with the upper die base, and the switching base performs stroke action in the vertical direction through the accommodating cavity; the driving pulley is driven by a telescopic pin of the cylinder device to horizontally reciprocate, and when the first driving surface is matched with the fourth driving surface, the switching base is lifted in the vertical direction; when the second driving surface is matched with the third driving surface, the switching base descends in the vertical direction.

Furthermore, one end of the first bump facing the mounting end is the inside of the first bump, and a second groove is formed in the inside of the first bump.

Further, the slider sets up on the drive coaster, the upper die base is equipped with the spout in the position department that corresponds the slider.

The side guide plate is fixedly connected to the upper die base, the sliding block is arranged on the driving pulley, the sliding groove is formed in the side guide plate, and the sliding groove corresponds to the sliding block in position.

Furthermore, the number of the side guide plates is four, two side guide plates are used as a group of guide pieces, and a group of guide pieces are distributed on the left side and the right side of the driving pulley respectively.

Furthermore, a group of guide pieces are distributed on the left side and the right side of the driving pulley respectively, and the two groups of guide pieces are symmetrically distributed about the central plane of the driving pulley.

And the mounting plate is positioned between the driving pulley and the upper die base and is fixedly connected to the driving pulley or the upper die base.

Furthermore, the special-shaped hole trimming device comprises a special-shaped hole trimming insert, wherein one end, facing the first groove, of the special-shaped hole trimming insert is the bottom of the special-shaped hole trimming insert, the punching and trimming device is only arranged at the bottom of the special-shaped hole trimming insert, and the top of the special-shaped hole trimming insert is fixedly connected with the bottom of the switching base.

The return stroke adjusting device comprises a return stroke adjusting assembly, wherein the return stroke adjusting assembly comprises an elastic piece, a pressing piece and a fixing piece, the upper die base is provided with an installation groove, the fixing piece is fixedly connected to the upper die base after the elastic piece is arranged in the installation groove, the fixing piece clamps the elastic piece in the installation groove and prevents the elastic piece from being separated from the installation groove, and the bottom of the installation groove is provided with a through hole; the lateral wall of switching base has seted up the boss, the one end and the boss fixed connection of pressing piece, the other end of pressing piece passes the through-hole and is connected with the elastic component, pressing piece and through-hole sliding fit.

Further, the elastic member is a spring.

According to the utility model, by introducing the punching switching device, the punching trimming operation of the position with the special-shaped hole and the trimming operation of the position without the special-shaped hole are realized by using one set of die. The switching base is lifted in the vertical direction when the first driving surface is matched with the fourth driving surface; when the second driving surface is matched with the third driving surface, the switching base descends in the vertical direction. Through the above process, the punching switching function is realized.

The punching and trimming device is stable in structure and high in applicability, improves the operation efficiency of punching and trimming, minimizes the whole structure on the premise of ensuring stable and continuous production, can obviously reduce the size of a die, simultaneously reduces the operation of working procedures and greatly saves the cost.

Drawings

FIG. 1 is a schematic view of a punching and trimming structure according to the present invention;

FIG. 2 is a schematic view of a trim-only configuration of the present invention;

FIG. 3 is a schematic view of a slider and a chute;

FIG. 4 is a schematic view of the assembly structure of the present invention without the upper and lower die bases;

FIG. 5 is a top view of the present invention without the lower die base;

FIG. 6 is a sectional view taken along line A-A of FIG. 5;

FIG. 7 is a bottom view of the present invention without the lower die base;

FIG. 8 is a schematic structural view of the switching base assembled according to FIG. 7;

FIG. 9 is a schematic view of a product without shaped holes;

FIG. 10 is a schematic view of a product with shaped holes;

description of reference numerals:

11. an upper die holder; 12. a lower die holder; 13. a first groove; 2. a cylinder device; 21. a retractable pin; 3. driving the pulley; 31. an installation end; 321. a first bump; 322. a second groove; 33. a second bump; 4. a switching base; 41. a third bump; 42. a punching and trimming device; 43. a boss; 5. a limiting device; 51. an accommodating cavity; 61. a slider; 62. a chute; 7. a side guide plate; 8. mounting a plate; 9. trimming the insert for the special-shaped hole; 101. an elastic member; 102. a pressing member; 103. a fixing member; 104. installing a groove; 105. a through hole; 111. a first drive face; 222. a second drive face; 333. a third drive face; 444. a fourth drive face.

Detailed Description

The utility model is further explained below with reference to the drawings and examples.

The punching switching device comprises an upper die holder 11 and a lower die holder 12, the lower die holder 12 is provided with a first groove 13 for punching and trimming, the punching switching device further comprises an air cylinder device 2, a driving pulley 3, a switching base 4 and a limiting device 5, the air cylinder device 2 is fixedly connected to the upper die holder 11, the air cylinder device 2 comprises a telescopic pin 21, one end, close to the telescopic pin 21, of the driving pulley 3 is a mounting end 31, the telescopic pin 21 of the air cylinder device 2 is fixedly connected with the mounting end 31, and the driving pulley 3 and the upper die holder 11 are in sliding fit with a sliding groove 62 through a sliding block 61; the end of the driving pulley 3 departing from the mounting end 31 is a mating end, a first projection 321 is arranged on the mating end, a first driving surface 111 is arranged at the end of the first projection 321 facing the mounting end 31, the end of the driving pulley 3 departing from the upper die holder 11 is an adjusting end, a second projection 33 is fixedly arranged on the adjusting end, a second driving surface 222 is arranged at the end of the second projection 33 far away from the adjusting end, the end of the switching base 4 close to the adjusting end is the top of the switching base 4, a third projection 41 is arranged at the top of the switching base 4, and a third driving surface 333 and a fourth driving surface 444 are arranged on the third projection 41; the third driving surface 333 corresponds to the position of the second driving surface 222, and the fourth driving surface 444 corresponds to the position of the first driving surface 111; a punching and trimming device 42 is arranged at the bottom of the switching base 4, the punching and trimming device 42 corresponds to the first groove 13, the limiting device 5 is fixedly connected to the upper die base 11, the limiting device 5 and the upper die base 11 are fixed to form an accommodating cavity 51, and the switching base 4 performs stroke movement in the vertical direction through the accommodating cavity 51; the driving pulley 3 is driven by the telescopic pin 21 of the cylinder device 2 to horizontally reciprocate, and when the first driving surface 111 is matched with the fourth driving surface 444, the switching base 4 is lifted in the vertical direction; when the second driving surface 222 is engaged with the third driving surface 333, the switching base 4 is lowered in the vertical direction thereof.

After the second driving surface 222 is matched with the third driving surface 333, the switching base 4 descends in the vertical direction, the second protrusion 33 contacts with the top of the switching base 4, the punching and trimming device 42 is clamped into the first groove 13 to realize punching and trimming operations, and the punching and trimming device 42 has a punching incision in the first groove 13, as shown in fig. 1, the telescopic pin 21 of the cylinder device 2 drives the driving pulley 3 to perform reciprocating translation in the horizontal direction.

As shown in fig. 2, which is a schematic view of the trimming-only structure of the present invention, after the first driving surface 111 is engaged with the fourth driving surface 444, the switching base 4 is lifted in the vertical direction, and then when the third protrusion 41 is clamped between the first protrusion 321 and the second protrusion 33, the trimming and punching device 42 is disengaged from the first groove 13 to perform the trimming operation, that is, the trimming and punching device 42 has a trimming cut but no punching cut in the first groove 13.

For making the structure more stable, the one end towards the installation end 31 in the first lug 321 is the inside of the first lug 321, the second groove 322 is opened in the inside of the first lug 321, and the third lug 41 can be clamped into the second groove 322 to make the adaptation more stable.

In order to specify the specific positions of the sliding block 61 and the sliding groove 62, the sliding block 61 is disposed on the driving pulley 3, and the upper die holder 11 is provided with the sliding groove 62 at the position corresponding to the sliding block 61.

In order to increase the universality of the utility model and reduce the processing damage to the upper die base 11, the side guide plate 7 is introduced, the side guide plate 7 is fixedly connected on the upper die base 11, the slide block 61 is arranged on the driving pulley 3, the slide groove 62 is arranged on the side guide plate 7, and the slide groove 62 corresponds to the slide block 61. In order to clarify the specific structure of the present invention when the number of the side guides 7 is plural, the number of the side guides 7 is four, two side guides 7 are used as a group of guide members, and a group of guide members is distributed on each of the left and right sides of the driving pulley 3. Further, the two sets of guides are symmetrically distributed about the centre plane of the drive block 3.

To avoid direct contact between the drive trolley 3 and the upper die holder 11 and to reduce wear between the drive trolley 3 and the upper die holder 11, a mounting plate 8 is introduced. The mounting plate 8 is positioned between the driving pulley 3 and the upper die base 11, and the mounting plate 8 is fixedly connected to the driving pulley 3 or the upper die base 11.

In order to facilitate the use of various trimming inserts and increase the trimming application range of the utility model, the special-shaped hole trimming insert 9 is introduced, one end of the special-shaped hole trimming insert 9 facing the first groove 13 is the bottom of the special-shaped hole trimming insert 9, the punching and trimming device 42 is only arranged at the bottom of the special-shaped hole trimming insert 9, and the top of the special-shaped hole trimming insert 9 is fixedly connected with the bottom of the switching base 4.

In order to increase the elastic adjustment of the present invention, the horizontal reciprocating movement of the driving pulley 3 is conveniently converted into the lifting and descending of the switching base 4 in the vertical direction thereof, that is, when the first driving surface 111 is matched with the fourth driving surface 444, the switching base 4 is conveniently lifted in the vertical direction thereof; that is, when the second driving surface 222 is engaged with the third driving surface 333, the switching base 4 is conveniently lowered in the vertical direction thereof, and the return stroke adjusting assembly is introduced for the elastic adjustment and good transition of the two aforementioned key states. The return stroke adjusting assembly comprises an elastic piece 101, a pressing piece 102 and a fixing piece 103, the upper die holder 11 is provided with an installation groove 104, after the elastic piece 101 is arranged in the installation groove 104, the fixing piece 103 is fixedly connected on the upper die holder 11, the fixing piece 103 clamps the elastic piece 101 in the installation groove 104 to prevent the elastic piece 101 from being separated from the installation groove 104, and the bottom of the installation groove 104 is provided with a through hole 105; the side wall of the switching base 4 is provided with a boss 43, one end of the pressing piece 102 is fixedly connected with the boss 43, the other end of the pressing piece 102 passes through the through hole 105 to be connected with the elastic piece 101, and the pressing piece 102 is in sliding fit with the through hole 105.

The elastic member 101 may provide an elastic force, and may be a spring or an elastic rubber.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art can change or modify the technical content disclosed above into an equivalent embodiment with equivalent changes, but all those simple modifications, equivalent changes and modifications made to the above embodiment without departing from the spirit of the present invention still belong to the protection scope of the present invention.

Claims

1. The punching switching device comprises an upper die holder (11) and a lower die holder (12), wherein a first groove (13) for punching and trimming is formed in the lower die holder (12), and the punching switching device is characterized by further comprising an air cylinder device (2), a driving pulley (3), a switching base (4) and a limiting device (5), wherein the air cylinder device (2) is fixedly connected to the upper die holder (11), the air cylinder device (2) comprises a telescopic pin (21), one end, close to the telescopic pin (21), in the driving pulley (3) is a mounting end (31), the telescopic pin (21) of the air cylinder device (2) is fixedly connected with the mounting end (31), and the driving pulley (3) and the upper die holder (11) are in sliding fit with a sliding groove (62) through a sliding block (61);

one end of the driving pulley (3) departing from the mounting end (31) is a mating end, a first bump (321) is arranged on the mating end, a first driving surface (111) is arranged at the end part of the first lug (321) facing the mounting end (31), one end of the driving pulley (3) deviating from the upper die holder (11) is an adjusting end, a second lug (33) is fixedly arranged on the adjusting end, a second driving surface (222) is arranged at one end of the second lug (33) far away from the adjusting end, one end of the switching base (4) close to the adjusting end is the top of the switching base (4), a third lug (41) is arranged on the top of the switching base (4), a third driving surface (333) and a fourth driving surface (444) are arranged on the third lug (41), the third driving surface (333) corresponds to the position of the second driving surface (222), and the fourth driving surface (444) corresponds to the position of the first driving surface (111);

a punching trimming device (42) is arranged at the bottom of the switching base (4), the punching trimming device (42) corresponds to the first groove (13), the limiting device (5) is fixedly connected to the upper die holder (11), an accommodating cavity (51) is formed after the limiting device (5) is fixed with the upper die holder (11), and the switching base (4) performs stroke motion in the vertical direction through the accommodating cavity (51);

the driving pulley (3) is driven by a telescopic pin (21) of the cylinder device (2) to horizontally reciprocate, and when the first driving surface (111) is matched with the fourth driving surface (444), the switching base (4) is lifted in the vertical direction; when the second driving surface (222) is engaged with the third driving surface (333), the switching base (4) is lowered in the vertical direction thereof.

2. A punch switch device according to claim 1, characterized in that the end of the first projection (321) facing the mounting end (31) is the inside of the first projection (321), and a second recess (322) is provided in the inside of the first projection (321).

3. A punch switching device as claimed in claim 1, characterised in that the slide (61) is arranged on the drive trolley (3), the upper die holder (11) being provided with a slide groove (62) at a position corresponding to the slide (61).

4. A punch switching device according to claim 1, characterized by comprising a side guide (7), wherein the side guide (7) is fixedly connected to the upper die holder (11), the slide (61) is arranged on the driving trolley (3), the slide groove (62) is arranged on the side guide (7), and the slide groove (62) corresponds to the slide (61).

5. A punch switching device as claimed in claim 4, characterised in that the number of side guides (7) is four, that two side guides (7) are provided as a set of guides, and that a set of guides is provided on each of the left and right sides of the drive block (3).

6. A punch switching device as claimed in claim 5, characterised in that the two sets of guides are symmetrically distributed about the centre plane of the drive block (3).

7. A punch switching device as claimed in claim 1, characterized by comprising a mounting plate (8), said mounting plate (8) being located between the drive trolley (3) and the upper die holder (11), the mounting plate (8) being fixedly connected to the drive trolley (3) or the upper die holder (11).

8. A punch switching device according to claim 1, characterized by comprising a profiled hole trimming insert (9), the end of the profiled hole trimming insert (9) facing the first recess (13) being the bottom of the profiled hole trimming insert (9), the punch trimming means (42) being arranged only at the bottom of the profiled hole trimming insert (9), the top of the profiled hole trimming insert (9) being fixedly connected to the bottom of the switching base (4).

9. A punching switching device according to any one of claims 1 to 8, comprising a return stroke adjusting assembly, wherein the return stroke adjusting assembly comprises an elastic member (101), a pressing member (102) and a fixing member (103), the upper die holder (11) is provided with a mounting groove (104), the fixing member (103) is fixedly connected to the upper die holder (11) after the elastic member (101) is placed in the mounting groove (104), the fixing member (103) blocks the elastic member (101) in the mounting groove (104) to prevent the elastic member (101) from being separated from the mounting groove (104), and the bottom of the mounting groove (104) is provided with a through hole (105);

the side wall of the switching base (4) is provided with a boss (43), one end of the pressing piece (102) is fixedly connected with the boss (43), the other end of the pressing piece (102) penetrates through the through hole (105) to be connected with the elastic piece (101), and the pressing piece (102) is in sliding fit with the through hole (105).

10. A punch switching device according to claim 9, characterised in that the resilient member (101) is a spring.