CN215941241U

CN215941241U - Automatic forming die for annular products

Info

Publication number: CN215941241U
Application number: CN202121881709.9U
Authority: CN
Inventors: 陈卫民; 杨林萍; 陈凤强
Original assignee: Guangzhou Xianyi Electronic Technology Co ltd
Current assignee: Guangzhou Xianyi Electronic Technology Co ltd
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-03-04
Anticipated expiration: 2031-08-11

Abstract

The utility model relates to the technical field of stamping dies, in particular to an automatic forming die for an annular product, which comprises an upper die and a lower die, wherein the upper die is provided with a punch, a convex die core and a pushing mechanism; the material pushing mechanism comprises a push rod and a first driving device for pushing the push rod to move, the push rod is connected with the punch in a sliding mode, and the push rod is used for pushing out materials formed on the convex mold core; the lower die comprises a forming concave die core, extrusion punches arranged at two sides of the forming concave die core and a second driving device for pushing the extrusion punches to move towards the forming concave die core; the male mold core is positioned right above the molding female mold core. Through the punch forming of the male die core, the forming female die core and the two extrusion punches, the annular product is formed on the male die core in a one-time punch forming mode, the pushing mechanism can automatically push out the formed annular product, the automatic material returning of the product is achieved, and the production efficiency of the annular product is improved through the one-time punch forming and the automatic material returning of the product.

Description

Automatic forming die for annular products

Technical Field

The utility model relates to the technical field of stamping dies, in particular to an automatic forming die for an annular product.

Background

The existing automatic forming die for the annular product can be formed only by multiple steps, for example, chinese patent documents with publication number "CN 102861813A" and publication date of 2013, 1 month and 9 days disclose a method for processing a special-shaped part and a die thereof, which require three steps to complete processing of the annular product, and require manual feeding and manual returning, resulting in low production efficiency of the annular product.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of low production efficiency of annular products in the prior art, and provides an automatic forming die for the annular products, which can complete production of the annular products through one-time stamping and can automatically return materials, thereby improving the production efficiency of the products.

In order to solve the technical problems, the utility model adopts the technical scheme that: an automatic forming die for annular products comprises an upper die and a lower die, wherein the upper die is provided with a punch, a convex die core and a pushing mechanism; the male mold core is arranged on the punch, the material pushing mechanism comprises a push rod and a first driving device for pushing the push rod to move, the push rod is connected with the punch in a sliding mode, and the push rod is used for pushing out materials formed on the male mold core; the lower die comprises a forming concave die core, extrusion punches arranged at two sides of the forming concave die core and a second driving device for pushing the extrusion punches to move towards the direction of the forming concave die core; the male mold core is positioned right above the molding female mold core.

In the above technical scheme, the upper die and the lower die can be placed on the frame, and the frame is provided with driving parts such as cylinders for pushing the upper die to move towards the lower die. The material to be processed is placed on the forming concave mold core, the upper mold moves towards the lower mold, so that the convex mold core and the forming concave mold core are assembled, the convex mold core compresses the material on the forming concave mold core, the second driving device drives the extrusion punches on two sides of the forming concave mold core to move towards the direction of the forming concave mold core, so that the material is bent, and a cavity surrounded by the extrusion punches, the convex mold core and the forming concave mold core is an annular cavity, so that the material can be bent into an annular shape and is formed on the convex mold core. After the upper die is reset, the first driving device drives the push rod to push the annular product on the convex die core out of the convex die core, and automatic blanking of the annular product is achieved.

Preferably, the pushing mechanism further comprises a push plate; the punch is provided with a through hole for the push rod to pass through, and one end of the push rod, which passes through the punch, is connected with the push plate; the push plate is provided with a movable groove, the movable groove is attached to the shape of the convex mold core, and the push plate is sleeved on the convex mold core and is in sliding connection with the convex mold core. The push plate can with the side butt of the fashioned cyclic annular product on the convex mould core, increased the area of contact of push plate and cyclic annular product to release the cyclic annular product on the convex mould core better.

Preferably, the upper die comprises a top die plate, a middle die plate and a bottom die plate which are connected in sequence; the bottom template is provided with a sliding groove, and the punch is provided with a limiting block which slides in the sliding groove; the middle template is provided with a containing hole, and a first elastic piece is arranged in the containing hole; the punch is provided with a mounting portion which is arranged in the accommodating hole, and the mounting portion is abutted to one end of the first elastic piece. The punch is installed in the sliding groove through the limiting block and is connected with the bottom die plate, when the male die core is matched with the forming female die core, the punch can compress the first elastic piece, so that the male die core can slightly move upwards when matched with the forming female die core, the pressure of the male die core on materials is reduced, and the deformation of the materials caused by overlarge pressure is avoided.

Preferably, the upper die is provided with a limiting groove, a supporting plate and a limiting portion used for limiting the supporting plate in the limiting groove are arranged in the limiting groove, and the first driving device is installed on the supporting plate. The backup pad is restricted at the spacing inslot of last mould, can keep away from the one end of push rod to first drive arrangement, can stabilize first drive arrangement's position, ensures first drive arrangement's stability.

Preferably, a waist-shaped groove is formed in the supporting plate, a connecting part is arranged on the limiting part, and the connecting part penetrates through the waist-shaped groove and is fixed in the limiting groove; the connecting part is connected with the waist-shaped groove in a sliding manner. The connecting part provides supporting force for the supporting plate, and the stability of the first driving device is further improved. The support plate can also slide upwards along with the first drive means when the punch compresses the spring.

Preferably, the lower die is provided with a clearance groove for accommodating the punch, so that the punch and the lower die are prevented from interfering.

Preferably, a movable baffle is arranged between the forming concave mold core and the extrusion punch, a second elastic piece is arranged at the bottom end of the movable baffle, and the other end of the second elastic piece is abutted against the bottom of the lower mold; the upper die is provided with an ejector pin matched with the movable baffle, and the ejector pin is used for pushing the movable baffle to move towards the bottom of the lower die. The movable baffle can position the material placed into the forming concave mold core, so that the material can be placed more accurately. In order to avoid the movable baffle plate from blocking the movement of the extrusion punch, the movable baffle plate is provided with a part extending towards the direction of the clearance groove, the movable baffle plate is pressed downwards through the ejector pin, so that the extrusion punch smoothly completes stamping, and due to the action of the second elastic piece, the movable baffle plate can be pushed to reset by the second elastic piece after the ejector pin resets.

Preferably, the lower die is provided with a guide hole, and the upper die is provided with a guide post fitted into the guide hole. The action of guiding hole and guide post lets go up mould and lower mould and can aim at, and the male mold core can accurately be compound die with the shaping concave mold core.

Preferably, the first driving device is a small air cylinder, so that the weight is light, and the influence on the movement of the upper die is reduced. The second driving device is a bidirectional cylinder which can simultaneously drive the two extrusion punches to move, so that the two extrusion punches are ensured to keep the consistency of movement.

Compared with the prior art, the beneficial effects are: through the punch forming of the male die core, the forming female die core and the two extrusion punches, the annular product is formed on the male die core in a one-time punch forming mode, the pushing mechanism can automatically push out the formed annular product, the automatic material returning of the product is achieved, and the production efficiency of the annular product is improved through the one-time punch forming and the automatic material returning of the product.

Drawings

FIG. 1 is a schematic structural diagram of an automatic forming mold for a ring-shaped product according to the present invention;

FIG. 2 is a partial enlarged view of the location A of FIG. 1;

FIG. 3 is a schematic view of the mounting of the support plate and the retaining groove of the present invention;

FIG. 4 is a schematic view of the structure of the lower die of the present invention;

FIG. 5 is a schematic structural view of the upper die of the present invention;

fig. 6 is a schematic view of the structure of the punch of the present invention.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The technical scheme of the utility model is further described in detail by the following specific embodiments in combination with the attached drawings:

examples

As shown in fig. 1-6, an embodiment of an automatic forming die for a ring-shaped product includes an upper die 1 and a lower die 2, wherein the upper die 1 is provided with a punch 3, a male die core 4 and a material pushing mechanism 5; the male die core 4 is arranged on the punch 3, the pushing mechanism 5 comprises a push rod 501 and a first driving device 502 for pushing the push rod 501 to move, the push rod 501 is connected with the punch 3 in a sliding mode, and the push rod 501 is used for pushing out materials formed on the male die core 4; the lower die 2 comprises a forming concave die core 6, extrusion punches 7 arranged at two sides of the forming concave die core 6 and a second driving device 8 for pushing the extrusion punches 7 to move towards the forming concave die core 6; the male mold core 4 is positioned right above the molding female mold core 6.

Specifically, the pushing mechanism 5 further includes a pushing plate 503; the punch 3 is provided with a through hole 301 for a push rod 501 to pass through, and one end of the push rod 501 passing through the punch 3 is connected with a push plate 503; the push plate 503 is provided with a movable groove 5031, the movable groove 5031 is fitted with the shape of the male mold core 4, and the push plate 503 is sleeved on the male mold core 4 and is connected with the male mold core 4 in a sliding manner. The push plate 503 can abut against the side surface of the annular product formed on the male mold core 4, and the contact area between the push plate 503 and the annular product is increased, so that the annular product on the male mold core 4 can be better pushed out. In this embodiment, two push rods 501 are provided and are respectively connected to two sides of the push plate 503, and the push rods 501 push the push plate 503 to move more stably.

The upper die 1 comprises a top die plate 101, a middle die plate 102 and a bottom die plate 103 which are connected in sequence; the bottom die plate 103 is provided with a slide groove 1031, and the punch 3 is provided with a stopper 302 that slides in the slide groove 1031; the middle template 102 is provided with a containing hole 1021, and a first elastic piece 1022 is arranged in the containing hole 1021; the punch 3 is provided with a mounting portion 303 which is fitted into the receiving hole 1021, and the mounting portion 303 abuts one end of the first elastic member 1022. The punch 3 is installed in the sliding groove 1031 through the limiting block 302 and is connected with the bottom die plate 103, when the male die core 4 is matched with the forming female die core 6, the punch 3 can compress the first elastic piece 1022, so that the male die core 4 can slightly move upwards when matched with the forming female die core, the pressure of the male die core 4 on materials is reduced, and the deformation of the materials caused by overlarge pressure is avoided. The receiving hole 1021 may be a through hole 301, and one end of the first elastic member 1022 may abut against the mounting plate, and the other end thereof may abut against the bottom surface of the top mold plate 101. The mounting portion 303 is a cylindrical body provided on both sides of the punch.

Specifically, the upper die 1 is provided with a limiting groove 104, a supporting plate 105 and a limiting portion 106 for limiting the supporting plate 105 in the limiting groove 104 are arranged in the limiting groove 104, and the first driving device 502 is mounted on the supporting plate 105. The support plate 105 is restricted in the stopper groove 104 of the upper die 1, and can stabilize the position of the first driving device 502 at the end of the first driving device 502 away from the push rod 501, thereby ensuring the stability of the first driving device 502. In this embodiment, the supporting plate 105 is provided with a waist-shaped groove 1051, the limiting portion 106 is provided with a connecting portion 1061, and the connecting portion 1061 passes through the waist-shaped groove 1051 and is fixed in the limiting groove 104; the connecting portion 1061 is slidably connected to the kidney groove 1051. The connecting portion 1061 provides a supporting force for the supporting plate 105, further improving the stability of the first driving device 502. The support plate 105 can also slide upwards with the first drive 502 when the punch 3 compresses the spring. In the present embodiment, the limiting portion 106 is a bolt, and the bolt is in threaded connection with the limiting groove 104.

Wherein, the lower die 2 is provided with a clearance groove 201 for accommodating the punch 3, so as to avoid the interference between the punch 3 and the lower die 2.

In order to accurately place materials on the forming concave mold core 4, a movable baffle plate 9 is arranged between the forming concave mold core 4 and the extrusion punch 7, a second elastic piece is arranged at the bottom end of the movable baffle plate 9, and the other end of the second elastic piece is abutted against the bottom of the lower mold 2; the upper die 1 is provided with an ejector pin 108 matched with the movable baffle 9, and the ejector pin 304 is used for pushing the movable baffle 9 to move towards the bottom of the lower die 2. The movable baffle 9 can position the material placed into the forming concave mold core 6, so that the material can be placed more accurately. In order to avoid the movable baffle 9 from blocking the movement of the extrusion punch 7, the movable baffle 9 is provided with a part extending towards the clearance groove 201, the movable baffle 9 is pressed downwards through the ejector pin, so that the extrusion punch 7 can complete the stamping smoothly, and due to the action of the second elastic piece, the movable baffle 9 is also pushed to reset by the second elastic piece after the ejector pin resets.

Further, the lower die 2 is provided with a guide hole 202, and the upper die 1 is provided with a guide post 107 fitted into the guide hole 202. The guide holes 202 and the guide posts 107 function to align the upper mold 1 and the lower mold 2, and the male mold core 4 can be accurately clamped with the female mold core 6.

Specifically, the first driving device 502 is a small air cylinder, so that the weight is light, and the influence on the movement of the upper die 1 is reduced. The second driving device 8 is a bidirectional air cylinder which can simultaneously drive the two extrusion punches 7 to move, so that the two extrusion punches 7 can keep consistent in movement. In this embodiment, the upper die 1 is provided with the pressing block 109, the lower die 2 is provided with the starting valve 203 connected with the bidirectional cylinder, and after the upper die 1 and the lower die 2 are closed, the pressing block 109 triggers the starting valve 203, so that the bidirectional cylinder is started and can act quickly.

The working principle or working process of the embodiment is as follows: the upper die 1 and the lower die 2 can be placed on a rack, and driving pieces such as cylinders for pushing the upper die 1 to move towards the lower die 2 are arranged on the rack. The material to be processed is placed on the forming concave mold core 6, the upper mold 1 moves towards the lower mold 2, so that the convex mold core 4 and the forming concave mold core 6 are matched, the convex mold core 4 compresses the material on the forming concave mold core 6, meanwhile, the movable baffle 9 is pressed down by the ejector pins, the second driving device 8 drives the extrusion punches 7 on two sides of the forming concave mold core 6 to move towards the forming concave mold core 6, so that the material is bent, and a cavity surrounded by the extrusion punches 7, the convex mold core 4 and the forming concave mold core 6 is an annular cavity, so that the material can be bent into an annular shape and is formed on the convex mold core 4. After the upper die 1 is reset, the first driving device 502 drives the push plate 503 to push the annular product on the convex die core 4 out of the convex die core 4, so that automatic blanking of the annular product is realized.

The beneficial effects of this embodiment: through the punch forming of the convex mold core 4, the forming concave mold core 6 and the two extrusion punch heads 7, the annular product is formed on the convex mold core 4 in a one-time punch forming mode, the pushing mechanism 5 can automatically push out the formed annular product, the automatic material returning of the product is achieved, and the production efficiency of the annular product is improved through the one-time punch forming and the automatic material returning of the product.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. An automatic forming die for annular products comprises an upper die (1) and a lower die (2), and is characterized in that a punch (3), a convex die core (4) and a pushing mechanism (5) are mounted on the upper die (1); the male mold core (4) is arranged on the punch (3), the pushing mechanism (5) comprises a push rod (501) and a first driving device (502) for pushing the push rod (501) to move, the push rod (501) is connected with the punch (3) in a sliding mode, and the push rod (501) is used for pushing out materials formed on the male mold core (4); the lower die (2) comprises a forming concave die core (6), extrusion punches (7) arranged on two sides of the forming concave die core (6) and a second driving device (8) for pushing the extrusion punches (7) to move towards the forming concave die core (6); the male mold core (4) is positioned right above the molding female mold core (6).

2. The automatic forming die for the annular products according to claim 1, characterized in that the pushing mechanism (5) further comprises a push plate (503); the punch (3) is provided with a through hole (301) for the push rod (501) to pass through, and one end of the push rod (501) passing through the punch (3) is connected with the push plate (503); the push plate (503) is provided with a movable groove (5031), the movable groove (5031) is attached to the appearance of the convex mold core (4), and the push plate (503) is sleeved on the convex mold core (4) and is in sliding connection with the convex mold core (4).

3. The automatic forming die for the annular products as claimed in claim 2, wherein the upper die (1) comprises a top die plate (101), a middle die plate (102) and a bottom die plate (103) which are connected in sequence; the bottom die plate (103) is provided with a sliding groove (1031), and the punch (3) is provided with a limiting block (302) which slides in the sliding groove (1031); the middle template (102) is provided with a containing hole (1021), and a first elastic piece (1022) is arranged in the containing hole (1021); the punch (3) is provided with a mounting portion (303) that is fitted into the receiving hole (1021), and the mounting portion (303) abuts against one end of the first elastic member (1022).

4. The automatic forming die for the annular product according to claim 3, wherein the upper die (1) is provided with a limiting groove (104), a support plate (105) and a limiting portion (106) for limiting the support plate (105) in the limiting groove (104) are arranged in the limiting groove (104), and the first driving device (502) is mounted on the support plate (105).

5. The automatic forming die for the annular products as claimed in claim 4, wherein the supporting plate (105) is provided with a waist-shaped groove (1051), the limiting portion (106) is provided with a connecting portion (1061), and the connecting portion (1061) passes through the waist-shaped groove (1051) and is fixed in the limiting groove (104); the connecting part (1061) is connected with the waist-shaped groove (1051) in a sliding manner.

6. The automatic forming die of annular products according to claim 1, characterized in that said lower die (2) is provided with a clearance groove (201) for housing said punch (3).

7. The automatic forming die for the annular products as claimed in claim 1, wherein a movable baffle (9) is arranged between the forming concave die core (6) and the extrusion punch (7), a second elastic piece is arranged at the bottom end of the movable baffle (9), and the other end of the second elastic piece is abutted against the bottom of the lower die (2); go up mould (1) be provided with ejector pin (108) that adjustable fender (9) match, ejector pin (108) are used for promoting adjustable fender (9) to the bottom motion of lower mould (2).

8. The automatic forming die for the annular products according to any one of claims 1 to 7, characterized in that the lower die (2) is provided with a guide hole (202), and the upper die (1) is provided with a guide post (107) fitted into the guide hole (202).

9. The automatic forming die for annular products according to claim 8, characterized in that said first driving means (502) is a pneumatic cylinder.

10. The automatic forming die of annular products according to claim 9, characterized in that said second driving means (8) is a bidirectional cylinder.