CN218134597U - Ejecting mould in hole flanging punches a hole - Google Patents

Abstract

The utility model provides an ejecting mould in hole flanging that punches a hole, includes drift, hole flanging insert, movable terrace die, insert mount pad, ejector pin assembly and waste material pipe, the hole flanging insert assemble in the top of insert mount pad, movable terrace die along the axial set up in the hole flanging insert with between the insert mount pad and can be in along axial slip in the hole flanging insert, the drift be used for punch a hole, hole flanging and ejecting time through the plate with the top of movable terrace die offsets, the ejector pin assembly assemble in the insert mount pad and can be in along axial slip in the insert mount pad, the ejector pin assembly be used for ejecting with the bottom of movable terrace die offsets and for the movable terrace die provides thrust, the waste material pipe with the drift coaxial setting and along the circumference of insert mount pad install in the inboard of ejector pin assembly and movable terrace die.

Description

Ejecting mould in hole flanging punches a hole

Technical Field

The utility model relates to an automobile stamping die field especially relates to an ejecting mould in hole flanging punches a hole.

Background

Along with the development of science and technology and the change of aesthetic quality, in the automobile manufacturing industry, the shape of an automobile is more and more complicated, especially the visible parts outside a side wall outer plate, a fender and the like, and the corresponding automobile mould complexity is the water rising ship height, such as the hole flanging of the side wall outer plate A column and a rear fender and some related side wall parts. As the shape of these parts becomes more complex, the difficulty of machining the parts increases. Due to the process limitation, it is necessary to arrange a plurality of processes of punching, burring, and ejecting in the same process, which is inconvenient in processing using a conventional mold.

Disclosure of Invention

The utility model provides a can accomplish punching a hole, hole flanging and ejecting mould.

The utility model provides an ejecting mould in hole flanging that punches a hole includes drift, hole flanging insert, movable terrace die, inserts the mount pad, ejector pin assembly and waste material pipe, the hole flanging insert assemble in the top of mount pad inserts, movable terrace die along the axial set up in the hole flanging insert with insert between the mount pad and can along endwise slip in the hole flanging insert, the drift be used for punch a hole, hole flanging and ejecting time through the plate with the top of movable terrace die offsets, the ejector pin assembly assemble in just can in the mount pad of inserting along endwise slip in the mount pad, the ejector pin assembly be used for when ejecting with the bottom of movable terrace die offsets and does the movable terrace die provides thrust, the waste material pipe with the coaxial setting of drift just follows the circumference of insert the mount pad install in the inboard of ejector pin assembly and movable terrace die.

Further, the movable male die comprises a punching part, a first limiting part and a second limiting part which are integrally formed from top to bottom, the punching part is located at the top of the movable male die, a waste through hole used for punching is formed in the center of the punching part, the first limiting part is located below the punching part, the circumferential size of the first limiting part gradually expands from top to bottom and is larger than the circumferential size of the punching part, the second limiting part is located below the first limiting part, and the circumferential size of the second limiting part is larger than the circumferential size of the first limiting part.

Further, first spacing portion includes first slope portion and straight portion, first slope portion with straight portion top-down integrated into one piece, the circumference size top-down of first slope portion expands gradually, the circumference size of straight portion with the main aspects circumference size of first slope portion is the same, first slope portion with be clearance fit between the hole flanging inserts, straight portion with be transition fit between the hole flanging inserts.

Further, the hole flanging insert comprises a first step portion and a second step portion, the first step portion is concavely arranged on the inner wall of the hole flanging insert, the first step portion is used for abutting against the first limiting portion and limiting the first limiting portion to slide upwards along the axial direction, the second step portion is arranged at the bottom of the hole flanging insert, and the second step portion is used for abutting against the top of the second limiting portion and limiting the second limiting portion to slide upwards along the axial direction.

Further, first step portion still includes second slope portion and terrace die guide part, the second slope portion set up in the top of terrace die guide part, the circumference size top-down of second slope portion expands gradually, the circumference size of terrace die guide part with the main aspects circumference size of second slope portion is the same, the second slope portion be used for with first slope portion offsets and forms clearance fit rather than along the axial, the terrace die guide part is used for straight portion provides axial direction and forms transition fit rather than along the axial.

Further, the ejector rod assembly comprises an ejector rod body and an elastic part, the ejector rod body is longitudinally arranged in the insert mounting seat along the axial direction, the top of the ejector rod body is abutted to the bottom of the movable male die, the elastic part is arranged at the bottom of the ejector rod body, the elastic part is relatively fixed with the insert mounting seat, and the elastic part is used for providing resilience force for the ejector rod body along the axial direction.

Further, the ejector rod assembly further comprises a first base plate and a second base plate, the first base plate is sleeved on the ejector rod body, the ejector rod body can slide along the axial direction relative to the first base plate, the second base plate is fixedly connected with the ejector rod body into a whole, the second base plate is arranged between the ejector rod body and the elastic piece in a cushioning mode, and the first base plate is installed and fixed on the insert installation seat.

Further, the insert mounting seat further comprises an ejector rod guide part and a third step part, the ejector rod guide part is axially arranged in the insert mounting seat, the first base plate and the second base plate are axially and respectively arranged on the upper side and the lower side of the ejector rod guide part, the ejector rod body is axially inserted in the ejector rod guide part, the third step part is arranged at the bottom end of the ejector rod guide part, and the third step part is used for abutting against the top of the second base plate and limiting the second base plate to slide upwards along the axial direction.

Further, the insert mounting seat further comprises a cover plate, the cover plate is mounted at the bottom of the insert mounting seat through a bolt, the waste material guide pipe is fixedly connected with the cover plate into a whole, and the bottom of the elastic piece is mounted on the cover plate.

Further, the punching part, the punch guide part, the ejector rod guide part and the waste material guide pipe are coaxially arranged.

The utility model provides an ejecting mould in hole flanging that punches a hole carries out the axial direction for the activity terrace die through the hole flanging is inserted, provides the resilience force through the ejector pin assembly activity terrace die, avoids waste material influence ejection mechanism through waste material pipe discharge waste material, uses single mould to realize punching a hole, hole flanging and ejecting to the board, has effectively reduced mould process number, has improved production efficiency. The utility model discloses an ejecting mould low in manufacturing cost of hole flanging punches a hole, the installation is dismantled conveniently, simple structure, and the debugging degree of difficulty is low and the reliability is high, has practiced thrift when processing and assembly and adjustment.

Drawings

Fig. 1 is the utility model provides a schematic diagram of ejecting mould of hole flanging that punches a hole closes mould.

Fig. 2 is the utility model provides a schematic diagram of ejecting mould die sinking of hole flanging punches a hole.

Fig. 3 is an exploded view of the punching hole flanging ejecting die of the utility model.

Detailed Description

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments.

The terms "first," "second," "third," "fourth," and the like in the description and in the claims, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

Please refer to fig. 1 to 3, the ejecting mould in hole flanging that punches a hole of the utility model is mainly used for punching automobile side wall planking and back guarantor, and it can accomplish punching a hole, hole flanging and ejecting three process to the board in proper order. The utility model discloses an ejecting mould in hole flanging that punches a hole includes drift 1, the hole flanging is inserted 2, activity terrace die 3, mount pad 4 inserts, ejector pin assembly 5 and waste material pipe 6, drift 1 is located the upper die base, the hole flanging is inserted 2, activity terrace die 3, mount pad 4 inserts, ejector pin assembly 5 and waste material pipe 6 installation an organic whole and be located the die holder, drift 1 is served towards one of die holder and is equipped with drift 1 and punches a hole, drift 1 punches a hole one side and is provided with the fillet that is used for the hole flanging, drift 1 is used for punching a hole, the hole flanging offsets through plate and activity terrace die 3's top when ejecting, ejector pin assembly 5 is used for offsetting with activity terrace die 3's bottom and provide thrust for activity terrace die 3 when ejecting, activity terrace die 3 is installed in the hole flanging is inserted 2, ejector pin assembly 5 and waste material pipe 6 are installed in mount pad 4. In this embodiment, the punch 1 punches a hole in the same size as the expanded panel hole, the fillet is arranged at a distance of 5mm from the punch 1, and the hole-flanging depth is 1mm.

Specifically, the flanging insert 2 is assembled at the top of the insert mounting seat 4, the movable male die 3 is axially arranged between the flanging insert 2 and the insert mounting seat 4 and can axially slide in the flanging insert 2, the ejector rod assembly 5 is assembled in the insert mounting seat 4 and can axially slide in the insert mounting seat 4, and the waste guide tube 6 is coaxially arranged with the punch 1 and is arranged on the inner sides of the ejector rod assembly 5 and the movable male die 3 along the circumferential direction of the insert mounting seat 4.

Further, the movable male die 3 comprises a punching portion 31, a first limiting portion 32 and a second limiting portion 33 which are integrally formed from top to bottom, the punching portion 31 is located at the top of the movable male die 3, a through hole for punching is formed in the center of the punching portion 31, the first limiting portion 32 is located below the punching portion 31, the circumferential size of the first limiting portion 32 is gradually enlarged from top to bottom and is larger than the circumferential size of the punching portion 31, the second limiting portion 33 is located below the first limiting portion 32, and the circumferential size of the second limiting portion 33 is larger than the circumferential size of the first limiting portion 32. Specifically, the hole flanging insert 2 and the movable male die 3 are both of a hollow structure and are coaxially arranged, the movable male die 3 is slidably arranged in the hole flanging insert 2, the punching part 31 is located at the top of the movable male die 3 and used for abutting against the punch 1 through a plate to perform a punching and hole flanging process, the first limiting part 32 is equivalent to a narrow part of the movable male die 3, the second limiting part 33 is equivalent to a wide part of the movable male die 3, the hole flanging insert 2 axially provides a guide for the first limiting part 32, and the second limiting part 33 axially limits the movable male die 3 through abutting against the bottom of the hole flanging insert 2. In the present embodiment, the first limiting portion 32 includes a first slope portion 32a and a flat portion 32b, the first slope portion 32a and the flat portion 32b are integrally formed from top to bottom, the circumferential dimension of the first slope portion 32a gradually expands from top to bottom, the circumferential dimension of the flat portion 32b is the same as the circumferential dimension of the large end of the first slope portion 32a, the first slope portion 32a and the flanging insert 2 are in clearance fit, the flat portion 32b and the flanging insert 2 are in transition fit, the flanging insert 2 provides precise axial guidance for the movable punch 3 through transition fit with the flat portion 32b, and when the second limiting portion 33 abuts against the bottom of the flanging insert 2 for limiting, the clearance between the first slope portion 32a and the flanging insert 2 is at the minimum value.

Further, the burring insert 2 comprises a first step portion 21 and a second step portion 22, the first step portion 21 is concavely arranged on the inner wall of the burring insert 2, the first step portion 21 is used for abutting against the first limiting portion 32 and sliding upwards along the axial limiting first limiting portion 32, the second step portion 22 is arranged at the bottom of the burring insert 2, and the second step portion 22 is used for abutting against the top of the second limiting portion 33 and sliding upwards along the axial limiting second limiting portion 33. Specifically, the first step portion 21 further includes a second slope portion 21a and a punch guide portion 21b, the second slope portion 21a is disposed above the punch guide portion 21b, a circumferential dimension of the second slope portion 21a gradually expands from top to bottom, the circumferential dimension of the punch guide portion 21b is the same as a large end circumferential dimension of the second slope portion 21a, the second slope portion 21a is configured to abut against the first slope portion 32a and form a clearance fit therewith in the axial direction, the punch guide portion 21b is configured to provide axial guidance for the straight portion 32b and form a transition fit therewith in the axial direction, and in this embodiment, the second slope portion 21a and the first slope portion 32a are both arc slopes with a slight radian.

Further, the ejector rod assembly 5 comprises an ejector rod body 51 and an elastic part 52, the ejector rod body 51 is longitudinally arranged in the insert mounting seat 4 along the axial direction, the top of the ejector rod body 51 is abutted to the bottom of the movable convex die 3, the elastic part 52 is arranged at the bottom of the ejector rod body 51, the elastic part 52 is relatively fixed with the insert mounting seat 4, and the elastic part 52 is used for providing resilience force for the ejector rod body 51 along the axial direction. Specifically, set up five through-holes in the mount pad of inserting 4, including a waste material through-hole and four evenly distributed ejector pin through-holes around the waste material through-hole of seting up in central authorities, the waste material through-hole is used for communicating 6 discharge wastes materials of waste material pipe, and four ejector pin bodies 51 penetrate respectively in four corresponding ejector pin through-holes and can follow endwise slip in the ejector pin through-hole simultaneously, that is to say, four ejector pin bodies 51 link firmly integratively. In this embodiment, the elastic member 52 is a rectangular spring, the elastic stroke of the rectangular spring is 6mm, the rectangular spring is pre-pressed by 1mm when the mold is not closed, and a spring positioning pin 521 for placing the rectangular spring to move and deflect is installed at the center of the rectangular spring to ensure that the elastic force of the rectangular spring is applied to the ejector body 51 strictly in the axial direction.

Further, the ejector rod assembly 5 further comprises a first base plate 53 and a second base plate 54, the first base plate 53 is sleeved on the ejector rod body 51, the ejector rod body 51 can slide axially relative to the first base plate 53, the second base plate 54 is fixedly connected with the ejector rod body 51 into a whole, the second base plate 54 is arranged between the ejector rod body 51 and the elastic member 52 in a cushioning mode, and the second base plate 54 and the first base plate 53 are both fixedly installed on the insert installation seat 4. Specifically, the first backing plate 53 is axially disposed between the bottom of the movable male die 3 and the insert mounting seat 4, a through hole for providing axial guidance for the ejector rod body 51 is formed in the first backing plate 53, the ejector rod bodies 51 are fixedly connected into a whole through the second backing plate 54 located at the bottom ends of the ejector rod bodies 51, in this embodiment, the first backing plate 53 and the second backing plate 54 both need to be subjected to heat treatment to ensure rigidity, the first backing plate 53 and the insert mounting seat 4 are always tightly attached and have a certain thickness, and the second backing plate 54 can slide in the insert mounting seat 4 along with the elastic element 52.

Further, the insert mounting seat 4 further comprises a mandrel guide portion 41 and a third step portion 42, the mandrel guide portion 41 is axially arranged in the insert mounting seat 4, the first base plate 53 and the second base plate 54 are axially arranged on the upper side and the lower side of the mandrel guide portion 41 respectively, the mandrel body 51 is axially inserted into the mandrel guide portion 41, the third step portion 42 is arranged at the bottom end of the mandrel guide portion 41, and the third step portion 42 is used for abutting against the top of the second base plate 54 and axially limiting the upward sliding of the second base plate 54. Specifically, the ejector rod through hole is opened in the ejector rod guide portion 41, and the ejector rod body 51 can slide in the ejector rod guide portion 41, that is, the ejector rod guide portion 41 provides axial guide for the ejector rod body 51, when the second backing plate 54 is tightly attached to the third step portion 42, the second limiting portion 33 is also tightly attached to the second step portion 22, and the first limiting portion 32 is also tightly attached to the first step portion 21.

Further, the insert mounting seat 4 further comprises a cover plate 43, the cover plate 43 is mounted at the bottom of the insert mounting seat 4 through a bolt, the scrap pipe 6 is fixedly connected with the cover plate 43, and the bottom of the elastic element 52 is mounted on the cover plate 43. Specifically, the cover plate 43 seals the insert mounting seat 4 from the bottom, the waste conduit 6 is screwed with the cover plate 43 and covers the inner walls of the through holes in the middle of the movable male die 3 and the insert mounting seat 4 along the circumferential direction, and because the punching hole part 31, the male die guide part 21b, the ejector rod guide part 41 and the waste conduit 6 are coaxially arranged, the waste conduit 6 can prevent waste generated in the punching and hole flanging process from entering the ejection mechanism from the waste through hole to affect the service life of the mechanism.

Specifically, please refer to fig. 1, the die closing process of the punching and hole flanging ejecting die of the present invention is as follows: the plate is put into the die cavity, the upper die is controlled by the press to move downwards together with the punch 1, the punch 1 presses the plate and continuously works downwards, the plate is punched by the punching part 31 matched with the top end of the movable male die 3, the movable male die 3 moves downwards along with the punch 1, the ejector rod body 51 and the second backing plate 54 are downwards extruded by the second limiting part 33, the elastic part 52 below the second backing plate 54 is extruded, the elastic part 52 is compressed, the ejector rod assembly 5 can not move downwards any more along with the upper end of the ejector rod body 51 and the upper surface of the first backing plate 53, hole flanging is completed, and waste materials generated in the punching and hole flanging processes are discharged from the bottom through the waste material guide pipe 6.

As can be easily understood, please refer to fig. 2, the die opening process of the punching and hole flanging ejection die of the present invention is as follows: the upper die and the punch 1 are controlled by the press to move upwards, the elastic part 52 releases the elastic force, the ejector rod body 51 moves upwards along the first backing plate 53, the movable male die 3 moves upwards under the driving of the ejector rod assembly 5 until the second backing plate 54 is attached to the third step part 42, the second limiting part 33 is attached to the second step part 22, the first limiting part 32 is attached to the first step part 21, the punching part 31 at the top end of the movable male die 3 upwards ejects a plate, and the ejection is completed.

To sum up, the utility model discloses an ejecting mould in hole flanging that punches a hole inserts and carries out the axial direction for the activity terrace die through the hole flanging, provides the resilience force for the activity terrace die through the ejector pin assembly, avoids the waste material to influence ejection mechanism through waste material pipe discharge waste material, uses single mould to realize punching a hole, hole flanging and ejecting to the board, has effectively reduced mould process number, has improved production efficiency. The utility model discloses an ejecting mould low in manufacturing cost of hole flanging punches a hole, the installation is dismantled conveniently, simple structure, and the debugging degree of difficulty is low and the reliability is high, has practiced thrift when processing and assembly and adjustment.

The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. The utility model provides an ejecting mould of hole flanging punches a hole which characterized in that: the punching die comprises a punch (1), a hole flanging insert (2), a movable male die (3), an insert mounting seat (4), a mandril assembly (5) and a waste guide pipe (6), wherein the hole flanging insert (2) is assembled at the top of the insert mounting seat (4), the movable male die (3) is axially arranged between the hole flanging insert (2) and the insert mounting seat (4) and can axially slide in the hole flanging insert (2), the punch (1) is used for abutting against the top of the movable male die (3) through a plate when punching, hole flanging and ejecting, the mandril assembly (5) is assembled in the insert mounting seat (4) and can axially slide in the insert mounting seat (4), the mandril assembly (5) is used for abutting against the bottom of the movable male die (3) and providing thrust for the movable male die (3) when ejecting, and the waste guide pipe (6) is coaxially arranged with the punch (1) and is arranged on the inner side of the mandril assembly (5) and the inner side of the movable male die (3) along the circumferential direction of the insert mounting seat (4).

2. The punch hole flanging ejector die of claim 1, wherein: the movable male die (3) comprises a punching part (31), a first limiting part (32) and a second limiting part (33) which are integrally formed from top to bottom, the punching part (31) is located at the top of the movable male die (3), a waste through hole for punching is formed in the center of the punching part (31), the first limiting part (32) is located below the punching part (31), the circumferential size of the first limiting part (32) is gradually expanded from top to bottom and is larger than the circumferential size of the punching part (31), the second limiting part (33) is located below the first limiting part (32), and the circumferential size of the second limiting part (33) is larger than the circumferential size of the first limiting part (32).

3. The punch hole flanging ejector die of claim 2, wherein: the first limiting portion (32) comprises a first slope portion (32 a) and a straight portion (32 b), the first slope portion (32 a) and the straight portion (32 b) are integrally formed from top to bottom, the circumferential size of the first slope portion (32 a) gradually expands from top to bottom, the circumferential size of the straight portion (32 b) is the same as the circumferential size of the large end of the first slope portion (32 a), the first slope portion (32 a) and the hole flanging insert (2) are in clearance fit, and the straight portion (32 b) and the hole flanging insert (2) are in transition fit.

4. The punch and pierce ejector die of claim 3, wherein: the hole flanging insert (2) comprises a first step part (21) and a second step part (22), the first step part (21) is concavely arranged on the inner wall of the hole flanging insert (2), the first step part (21) is used for abutting against a first limiting part (32) and limiting upwards sliding of the first limiting part (32) along the axial direction, the second step part (22) is arranged at the bottom of the hole flanging insert (2), and the second step part (22) is used for abutting against the top of a second limiting part (33) and limiting upwards sliding of the second limiting part (33) along the axial direction.

5. The punch hole flanging ejector die of claim 4, wherein: the first step portion (21) further comprises a second slope portion (21 a) and a punch guide portion (21 b), the second slope portion (21 a) is arranged above the punch guide portion (21 b), the circumferential size of the second slope portion (21 a) is gradually expanded from top to bottom, the circumferential size of the punch guide portion (21 b) is the same as the circumferential size of the large end of the second slope portion (21 a), the second slope portion (21 a) is used for abutting against the first slope portion (32 a) and forming clearance fit with the first slope portion in the axial direction, and the punch guide portion (21 b) is used for providing axial guide for the straight portion (32 b) and forming transition fit with the straight portion in the axial direction.

6. The punch hole flanging ejector die of claim 5, wherein: the ejector rod assembly (5) comprises an ejector rod body (51) and an elastic part (52), the ejector rod body (51) is longitudinally arranged in the insert mounting seat (4) along the axial direction, the top of the ejector rod body (51) is abutted to the bottom of the movable male die (3), the elastic part (52) is arranged at the bottom of the ejector rod body (51), the elastic part (52) and the insert mounting seat (4) are relatively fixed, and the elastic part (52) is used for providing resilience force for the ejector rod body (51) along the axial direction.

7. The punch hole flanging ejector die of claim 6, wherein: the ejector rod assembly (5) further comprises a first base plate (53) and a second base plate (54), the first base plate (53) is sleeved on the ejector rod body (51), the ejector rod body (51) can slide axially relative to the first base plate (53), the second base plate (54) is fixedly connected with the ejector rod body (51) into a whole, the second base plate (54) is arranged between the ejector rod body (51) and the elastic piece (52) in a cushioning mode, and the first base plate (53) is installed and fixed on the insert installing seat (4).

8. The punch and pierce ejection die of claim 7, wherein: insert mount pad (4) still include ejector pin guide part (41) and third step portion (42), ejector pin guide part (41) along the axial set up in insert mount pad (4), first backing plate (53) with second backing plate (54) along the axial set up respectively in the upper and lower both sides of ejector pin guide part (41), ejector pin body (51) insert along the axial and locate in ejector pin guide part (41), third step portion (42) set up in the bottom of ejector pin guide part (41), third step portion (42) be used for with the top of second backing plate (54) offsets, and it is spacing along the axial second backing plate (54) upwards slides.

9. The punch and pierce ejector die of claim 6, wherein: the insert mounting seat (4) further comprises a cover plate (43), the cover plate (43) is mounted at the bottom of the insert mounting seat (4) through bolts, the waste material guide pipe (6) is fixedly connected with the cover plate (43) into a whole, and the bottom of the elastic piece (52) is mounted on the cover plate (43).

10. The punch hole flanging ejector die of claim 8, wherein: the punching part (31), the punch guide part (21 b), the ejector rod guide part (41) and the waste material guide pipe (6) are coaxially arranged.

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