CN110227786B

CN110227786B - Inclined top die for cold forging forming of ring piece and using method thereof

Info

Publication number: CN110227786B
Application number: CN201910679409.3A
Authority: CN
Inventors: 赵�卓; 蔡锟; 尹刘金
Original assignee: Anhui Tongsheng Ring Parts Co Ltd
Current assignee: Anhui Tongsheng Ring Parts Co Ltd
Priority date: 2019-07-26
Filing date: 2019-07-26
Publication date: 2021-01-26
Anticipated expiration: 2039-07-26
Also published as: CN110227786A

Abstract

The invention discloses an inclined ejection die for cold forging forming of ring parts and a using method thereof, and the inclined ejection die comprises a bottom plate, wherein the bottom plate comprises a hanging table groove position, a front die ejector plate and a front die core, the upper end of the bottom plate is the front die ejector plate, the upper end of the front die ejector plate is provided with the front die core, the upper end of a stroke guide rail is connected with the front die core in a penetrating manner, the front die core comprises a front die core body, a buckle groove, an inclined ejection hole and a ring part groove, two sides of the front die core body are provided with the inclined ejection hole, the inclined ejection hole is connected with an inclined ejection mechanism in a penetrating manner, the ring part groove is connected with a ring part in a clamping and embedding manner, the inclined ejection mechanism comprises an arc-shaped slide rail, a connecting rod and an inclined ejector, the lower end of the guide rail frame is provided. The inclined ejection die pushes upwards along the arc-shaped side wall of the ring piece through the inclined ejection, so that auxiliary upward pushing force is applied to the two sides of the ring piece, and the purpose of ejecting the ring piece quickly, efficiently and completely is achieved.

Description

Inclined top die for cold forging forming of ring piece and using method thereof

Technical Field

The invention relates to the technical field of an inclined top die, in particular to an inclined top die for cold forging forming of a ring part and a using method thereof.

Background

Cold forging is a general term of plastic processing such as cold die forging, cold extrusion, cold heading and the like, the cold forging is forming processing below the recrystallization temperature of materials, forging is carried out below the recovery temperature, forging without heating blanks is conventionally called cold forging in production, cold forging materials are mostly aluminum and partial alloys, copper and partial alloys with smaller deformation resistance and better plasticity at room temperature, low carbon steel, medium carbon steel and low alloy structural steel, the surface quality and the dimensional precision of cold forging pieces are good, cutting processing can be replaced by the cold forging pieces, the cold forging can strengthen metals and improve the strength of the parts, wherein, the cold forging comprises modes of flow division forging, closed forging and the like, the closed forging is to obtain a near net-shaped fine forging piece without flash by one or two unidirectional punches or opposite extrusion metal in a closed concave die for one-time forming, so the cold forging pieces are used for producing some precise annular parts of automobiles, compared with cutting processing, the material utilization rate is low, pollution is reduced, and working hours are shortened, but the ejection force of the edge of the ring piece is insufficient after the existing ring piece is extruded once, so that the problems of high discharging difficulty, slow discharging, low discharging integrity, easiness in deformation, reduction in product precision and the like are caused.

Disclosure of Invention

The invention aims to provide an inclined ejection die for cold forging forming of a ring piece and a using method thereof.

In order to achieve the purpose, the invention provides the following technical scheme:

an inclined top die for cold forging forming of ring parts and a using method thereof, comprising a bottom plate, wherein the bottom plate comprises a hanging table slot position, a front die ejector plate and a front die core, the upper end of the bottom plate is provided with a front mold thimble plate, the edges of two sides of the front mold thimble plate are fixedly connected with a hanging table slot position, the hanging platform slot position comprises a buckling device and a guide rail frame, the upper end of the hanging platform slot position is provided with the buckling device, the side wall of the buckling device is provided with four cylindrical buckling teeth, the buckling device is connected with a guide rail frame in a sliding way, the front mould ejector plate comprises a stroke guide rail and a straight top, the upper surfaces of two sides of the front mould ejector plate are fixedly connected with the stroke guide rail vertical to the horizontal plane, the upper surface of the middle part of the front die ejector pin plate is fixedly connected with a straight top vertical to a horizontal plane, the upper end of the front die ejector pin plate is provided with a front die core, and the upper end of the stroke guide rail is connected with the front die core in a penetrating way;

the front mold core comprises a front mold core body, a buckling groove, an inclined top hole and a ring piece groove, wherein the side wall of the front mold core body is provided with the cylindrical buckling groove, the buckling teeth are connected inside the buckling groove in a clamping and embedding manner, the middle part of the front mold core body is provided with a plurality of equally-spaced ring piece grooves, the lower bottom surfaces of the ring piece grooves are connected with straight tops in a penetrating manner, the two sides of the front mold core body are provided with the inclined top holes, the inclined top holes are connected with an inclined top mechanism in a penetrating manner, and the ring piece grooves are connected with ring pieces in a clamping and embedding manner;

the lifter mechanism comprises an arc-shaped slide rail, a connecting rod and a lifter, the lower end of the guide rail frame is provided with the arc-shaped slide rail, the arc-shaped slide rail is connected with the connecting rod in a sliding manner, and the lifter is arranged in the middle of the connecting rod.

Preferably, the guide rail bracket is perpendicular to both sides of the front mold ejector plate and the front mold core.

Preferably, the inclined top holes correspond to the ring grooves one by one.

Preferably, the lateral wall fixedly connected with spring of oblique apical pore, the spring is the annular matrix and distributes, and the one end fixedly connected with lantern ring of spring, and the middle part through connection of the lantern ring has oblique top.

Preferably, the oblique tops are positioned at two sides of the ring piece, the straight top is positioned below the ring piece, and extension lines of the straight top and the oblique tops pass through the circle center of the ring piece.

Preferably, the ring member is circular or semicircular.

The invention provides another technical scheme: an inclined top die for cold forging forming of a ring piece comprises the following steps:

the method comprises the following steps: the buckling device slides downwards along the guide rail frame to drive the front mold core to vertically move downwards under the connection effect of the buckling grooves and the buckling teeth, the straight top fixed on the upper surface of the front mold ejector plate moves upwards relative to the front mold core, the straight top acts on the middle part of the lower end of the ring piece, acting force is vertically upwards, and the stroke guide rail on the upper surface of the front mold ejector plate simultaneously moves upwards relative to the front mold core;

step two: the connecting rod of the inclined ejection mechanism slides downwards along the arc-shaped sliding rail to drive the other end of the inclined ejection to be pushed in an arc shape, namely acting force is applied to the center point of the circular ring from the side wall of the circular ring, one part of the acting force is decomposed into horizontal force, the other part of the acting force is decomposed into vertical upward acting force, the horizontal force of the inclined ejection in two opposite directions is mutually counteracted, the upward vertical force assists the circular ring to move upwards until the circular ring is ejected, and the joint of the circular ring groove and the inclined ejection is a supporting point of the inclined ejection.

Compared with the prior art, the invention has the beneficial effects that:

the invention provides an inclined top die for cold forging forming of ring pieces and a using method thereof, wherein a buckling device slides downwards along a guide rail frame to drive a front die core to vertically move downwards under the action of connection of a buckling groove and a buckling tooth, a straight top fixed on the upper surface of a front die ejector pin plate moves upwards relative to the front die core, the straight top acts on the middle part of the lower end of the ring piece, acting force is vertically upwards, a stroke guide rail on the upper surface of the front die ejector pin plate simultaneously moves upwards relative to the front die core, a connecting rod of an inclined top mechanism slides downwards along an arc-shaped sliding rail to drive the other end of the inclined top to be pushed in an arc shape, namely acting force is applied to a circle center point from the side wall of the ring piece, one part of the acting force is decomposed into horizontal force, the other part of the acting force is decomposed into vertical upwards acting force, the horizontal forces of two inclined tops in opposite directions are mutually offset, the upward vertical force assists the ring piece to move upwards until, the inclined top pushes upwards along the arc-shaped side wall of the ring piece, so that auxiliary upward pushing force is applied to the two sides of the ring piece, and the purpose of quickly, efficiently and completely ejecting the ring piece is achieved.

Drawings

FIG. 1 is an overall block diagram of the present invention;

FIG. 2 is a front die ejector plate structure of the present invention;

FIG. 3 is a front core structure view of the present invention;

FIG. 4 is a view of the inclined roof hole of the present invention;

FIG. 5 is a structural view of a pitched roof mechanism of the present invention;

FIG. 6 is a view showing a state where the lifter mechanism and the ring of the present invention are coupled;

fig. 7 is another connection state diagram of the pitched roof mechanism and the ring piece of the invention.

In the figure: 1. a base plate; 11. a hanging slot position; 111. a buckling device; 112. a guide rail bracket; 12. a front mold thimble plate; 121. a travel guide rail; 122. directly jacking; 13. a front mold core; 131. buckling grooves; 132. a front mold core body; 133. an inclined top hole; 1331. a spring; 1332. a collar; 134. a ring groove; 2. a ring member; 3. buckling teeth; 4. a pitched roof mechanism; 41. an arc-shaped slide rail; 42. a connecting rod; 43. and (5) obliquely ejecting.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 7, an inclined ejector die for cold forging forming of a ring piece and a using method thereof comprise a base plate 1, wherein the base plate 1 comprises a hanging platform slot 11, a front die ejector plate 12 and a front die core 13, the upper end of the base plate 1 is the front die ejector plate 12, two side edges of the front die ejector plate 12 are fixedly connected with the hanging platform slot 11, the hanging platform slot 11 comprises a buckling device 111 and a guide rail frame 112, the upper end of the hanging platform slot 11 is provided with the buckling device 111, the side wall of the buckling device 111 is provided with four cylindrical buckling teeth 3, the buckling device 111 is slidably connected with the guide rail frame 112, the guide rail frame 112 is perpendicular to two sides of the front die ejector plate 12 and the front die core 13, the front die ejector plate 12 comprises a stroke guide rail 121 and a straight top 122, the upper surfaces of two sides of the front die ejector plate 12 are fixedly connected with the stroke guide rail 121 perpendicular to a horizontal plane, the upper surface of the middle part of the front die ejector plate 12 is fixedly, the upper end of the front mold ejector plate 12 is provided with a front mold core 13, and the upper end of the stroke guide rail 121 is connected with the front mold core 13 in a penetrating way.

The front mold core 13 comprises a front mold core body 132, a buckle groove 131, inclined top holes 133 and a ring piece groove 134, a cylindrical buckle groove 131 is arranged on the side wall of the front mold core body 132, the buckle teeth 3 are connected inside the buckle groove 131 in a clamping and embedding manner, namely, the front mold core 13 is connected with the hanging table groove 11, the buckle position device 111 slides downwards along the guide rail frame 112 to drive the front mold core 13 to vertically move downwards under the connection effect of the buckle groove 131 and the buckle teeth 3, the straight tops 122 fixed on the upper surface of the front mold ejector pin plate 12 move upwards relative to the front mold core 13, a plurality of ring piece grooves 134 with equal intervals are arranged in the middle of the front mold core body 132, the connection positions of the ring piece grooves 134 and the inclined tops 43 are supporting points of the inclined tops 43, the straight tops 122 are connected to the lower bottom surface of the ring piece groove 134 in a penetrating manner, the inclined top holes 133 are arranged on two sides of the front mold core body 132, the inclined top holes 133 correspond to the ring piece grooves 134 one, the side wall of the inclined top hole 133 is fixedly connected with a spring 1331, the spring 1331 is distributed in an annular matrix, one end of the spring 1331 is fixedly connected with a lantern ring 1332, the middle part of the lantern ring 1332 is connected with an inclined top 43 in a penetrating manner, the joint of the inclined top hole 133 and the inclined top 43 is a supporting point of the inclined top 43, the spring 1331 is filled between the inclined top 43 and the front mold core body 132, when the inclined top 43 rotates and extends inwards, the spring 1331 in any direction can be compressed to match the pushing of the inclined top 43, and the inclined top hole 133 is connected with the inclined top mechanism 4 in a penetrating manner.

The inclined ejection mechanism 4 comprises an arc-shaped sliding rail 41, a connecting rod 42 and an inclined ejection 43, the lower end of the guide rail frame 112 is provided with the arc-shaped sliding rail 41, the arc-shaped sliding rail 41 is connected with the connecting rod 42 in a sliding manner, the middle part of the connecting rod 42 is provided with the inclined ejection 43, the ring piece groove 134 is internally connected with the ring piece 2 in a clamping and embedding manner, the ring piece 2 is circular or semicircular, the ring piece 2 is vertical to the front mold core body 132, at least one third of the circular ring piece 2 or at least one half of the semicircular ring piece 2 is positioned in the front mold core body 132, the inclined ejection 43 is positioned at two sides of the ring piece 2, the straight ejection 122 is positioned below the ring piece 2, extension lines of the straight ejection 122 and the inclined ejection 43 pass through the center of the ring piece 2, the straight ejection 122 acts on the middle part of the lower end of the ring piece 2, the acting force is, one part is decomposed into vertical upward acting force, the horizontal force of the two opposite oblique tops 43 is counteracted, and the upward vertical force assists the ring member 2 to move upwards until the ring member is ejected.

The working principle is as follows: the front mold core 13 is driven to move vertically downwards under the action of the connection of the buckle groove 131 and the buckle teeth 3 by the buckling device 111 sliding downwards along the guide rail frame 112, the straight top 122 fixed on the upper surface of the front mold ejector plate 12 moves upwards relative to the front mold core 13, the straight top 122 acts on the middle part of the lower end of the ring piece 2, the acting force is vertically upwards, the stroke guide rail 121 on the upper surface of the front mold ejector plate 12 simultaneously moves upwards relative to the front mold core 13 for positioning and preventing lateral deviation, the connecting rod 42 of the inclined top mechanism 4 slides downwards along the arc-shaped sliding rail 41 to drive the other end of the inclined top 43 to also advance in an arc shape, namely, the acting force is applied to the center point of the ring piece 2 from the side wall of the ring piece 2, part of the acting force is decomposed into horizontal force, part of the acting force is decomposed into vertical upwards acting force, the horizontal force of the inclined tops 43 in two opposite directions are mutually offset, the, wherein the connection point of the slanted ejecting hole 133 and the slanted ejecting 43 is the fulcrum of the slanted ejecting 43, the spring 1331 is filled between the slanted ejecting 43 and the front mold core body 132, and when the slanted ejecting 43 rotates and extends inward, the spring 1331 in any direction can be compressed to match the pushing of the slanted ejecting 43.

In summary, the following steps: the invention provides an inclined top die for cold forging forming of ring parts and a using method thereof, wherein a buckling device 111 slides downwards along a guide rail frame 112 to drive a front die core 13 to vertically move downwards under the action of connection of a buckling groove 131 and a buckling tooth 3, a straight top 122 fixed on the upper surface of a front die ejector pin plate 12 moves upwards relative to the front die core 13, the straight top 122 acts on the middle part of the lower end of a ring part 2, acting force is vertically upwards, a stroke guide rail 121 on the upper surface of the front die ejector pin plate 12 simultaneously moves upwards relative to the front die core 13, a connecting rod 42 of an inclined top mechanism 4 slides downwards along an arc-shaped sliding rail 41 to drive the other end of an inclined top 43 to be similarly pushed in an arc shape, namely acting force is applied to a circle center point of the ring part 2 from the side wall of the ring part 2, one part of the acting force is decomposed into horizontal force, one part of the acting force is decomposed into vertical upwards acting force, the upward vertical force assists the ring member 2 to move upward until the ring member is ejected, wherein the joint of the ring member groove 134 and the inclined top 43 is a fulcrum of the inclined top 43, and the inclined top 43 pushes upward along the arc-shaped side wall of the ring member 2, so that the auxiliary upward thrust is applied to two sides of the ring member 2, and the purpose of ejecting the ring member 2 rapidly, efficiently and completely is achieved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. The utility model provides a ring spare cold forging is taken shape with oblique top die, includes bottom plate (1), its characterized in that: the bottom plate (1) comprises a hanging platform groove (11), a front mold thimble plate (12) and a front mold core (13), the upper end of the bottom plate (1) is the front mold thimble plate (12), two side edges of the front mold thimble plate (12) are fixedly connected with the hanging platform groove (11), the hanging platform groove (11) comprises a buckling device (111) and a guide rail frame (112), the buckling device (111) is installed at the upper end of the hanging platform groove (11), four cylindrical buckling teeth (3) are arranged on the side wall of the buckling device (111), the buckling device (111) is slidably connected with the guide rail frame (112), the front mold thimble plate (12) comprises a stroke guide rail (121) and a straight top (122), the upper surfaces of two sides of the front mold thimble plate (12) are fixedly connected with the stroke guide rail (121) vertical to the horizontal plane, the upper surface of the middle part of the front mold thimble plate (12) is fixedly connected with the straight top (122) vertical to the horizontal plane, the upper end of the front mold ejector plate (12) is provided with a front mold core (13), and the upper end of the stroke guide rail (121) is connected with the front mold core (13) in a penetrating manner;

the front mold core (13) comprises a front mold core body (132), a buckle groove (131), an inclined top hole (133) and a ring groove (134), the side wall of the front mold core body (132) is provided with the cylindrical buckle groove (131), the buckle teeth (3) are connected to the inside of the buckle groove (131) in a clamping and embedding manner, the middle of the front mold core body (132) is provided with a plurality of equally-spaced ring grooves (134), the lower bottom surface of each ring groove (134) is connected with a straight top (122) in a penetrating manner, the two sides of the front mold core body (132) are provided with the inclined top hole (133), the inclined top hole (133) is connected with an inclined top mechanism (4) in a penetrating manner, and the inside of each ring groove (134) is connected with the ring (2) in a clamping and embedding;

the lifter mechanism (4) comprises an arc-shaped sliding rail (41), a connecting rod (42) and a lifter (43), the lower end of the guide rail frame (112) is provided with the arc-shaped sliding rail (41), the arc-shaped sliding rail (41) is connected with the connecting rod (42) in a sliding manner, and the lifter (43) is installed in the middle of the connecting rod (42).

2. The oblique top die for cold forging of ring member as claimed in claim 1, wherein: the guide rail bracket (112) is vertical to the two sides of the front mould ejector plate (12) and the front mould core (13).

3. The oblique top die for cold forging of ring member as claimed in claim 1, wherein: the inclined top holes (133) correspond to the ring piece grooves (134) one by one.

4. The oblique top die for cold forging of ring member as claimed in claim 1, wherein: the lateral wall fixedly connected with spring (1331) of oblique apical pore (133), spring (1331) are the annular matrix and distribute, and the one end fixedly connected with lantern ring (1332) of spring (1331), and the middle part through connection of lantern ring (1332) has oblique top (43).

5. The oblique top die for cold forging of ring member as claimed in claim 1, wherein: the inclined top (43) is positioned at two sides of the ring piece (2), the straight top (122) is positioned below the ring piece (2), and extension lines of the straight top (122) and the inclined top (43) pass through the circle center of the ring piece (2).

6. The oblique top die for cold forging of ring member as claimed in claim 1, wherein: the ring piece (2) is circular or semicircular.

7. The use method of the inclined top die for cold forging ring according to claim 1, wherein the inclined top die comprises the following steps: the method comprises the following steps:

the method comprises the following steps: the buckling device (111) slides downwards along the guide rail frame (112) to drive the front mold core (13) to vertically move downwards under the connection effect of the buckling grooves (131) and the buckling teeth (3), a straight top (122) fixed on the upper surface of the front mold ejector pin plate (12) moves upwards relative to the front mold core (13), the straight top (122) acts on the middle part of the lower end of the ring piece (2), acting force is vertically upwards, and a stroke guide rail (121) on the upper surface of the front mold ejector pin plate (12) simultaneously moves upwards relative to the front mold core (13);

step two: the connecting rod (42) of the inclined ejection mechanism (4) slides downwards along the arc-shaped sliding rail (41) to drive the other end of the inclined ejection (43) to push in an arc shape, namely acting force is applied to the center point of the circular ring (2) from the side wall of the circular ring (2), one part of the acting force is decomposed into horizontal force, the other part of the acting force is decomposed into vertical upward acting force, the horizontal force of the two opposite inclined ejectors (43) is mutually offset, the upward vertical force assists the circular ring (2) to move upwards until the circular ring is ejected, and the joint of the circular ring groove (134) and the inclined ejection (43) is a supporting point of the inclined ejection (43).