CN113305235A

CN113305235A - Forming method and forming mechanism for clamp spring groove of gear hub

Info

Publication number: CN113305235A
Application number: CN202110423154.1A
Authority: CN
Inventors: 叶坡; 孟垂洋; 李平进; 肖奇
Original assignee: Chongqing Innovmak Powertrain Co ltd
Current assignee: Chongqing Innovmak Powertrain Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-08-27

Abstract

The invention discloses a method and a mechanism for forming a clamp spring groove of a gear hub, wherein a workpiece is arranged on a lower male die, and an upper die driving block assembly and a material pressing core are driven to move downwards by a press machine so as to press the workpiece; along with the drive of press, go up mould drive block subassembly and continuously move down, simultaneously the fixture block with the second slider supports and holds, the lower mould with first slider supports and holds, first slider with the second slider all moves towards the lateral wall of tooth hub removes, utilizes the terrace die with the die will the jump ring groove stamping forming of work piece, consequently making during the jump ring groove of work piece, need not additionally to increase a station, and this machine adds the station and also need not artifical unloading, realizes automatic equipment volume production, has promoted production efficiency to reduced equipment occupancy and cost of labor, need not adopt intermittent processing in addition, can not cause the cutter wearing and tearing serious, makeed the one-piece cost reduction.

Description

Forming method and forming mechanism for clamp spring groove of gear hub

Technical Field

The invention relates to the technical field of automobile part stamping, in particular to a method and a mechanism for forming a clamp spring groove of a gear hub.

Background

At present, the automobile industry is continuously developed, the demand of a transmission is gradually increased, and the clamp spring grooves of the clamp spring groove type gear hub are formed in a machining mode. After the gear hub part is subjected to punch forming, a station for machining the clamp spring groove is additionally added, and the required clamp spring groove structure is obtained by adopting an intermittent cutting machining process. However, this processing method has low production efficiency and high production cost.

Disclosure of Invention

The invention aims to provide a method and a mechanism for forming a clamp spring groove of a gear hub, and aims to solve the technical problems of low production efficiency and high production cost of a clamp spring groove structure of the gear hub in the prior art.

In order to achieve the purpose, the clamp spring groove forming mechanism of the gear hub comprises two groups of ejector rods, two groups of supporting assemblies, extrusion assemblies, a lower die, a lower male die, a material pressing core and a workpiece, wherein the two groups of ejector rods are symmetrically arranged on two sides of the lower die, the supporting assemblies are arranged on each group of ejector rods, the extrusion assemblies are arranged on each group of supporting assemblies, the lower male die is arranged above the two extrusion assemblies, the workpiece is arranged on the lower male die, and the material pressing core is arranged above the workpiece;

every group the extrusion subassembly includes first slider, second slider, terrace die, die and last mould drive block subassembly, first slider slide set up in supporting component's top, first inclined plane has on the first slider, the both sides of lower mould have the second inclined plane, just the second inclined plane with the mutual adaptation of first inclined plane, the second slider with first slider sliding connection, third inclined plane has on the second slider, it includes mould drive block body and fixture block to go up the mould drive block subassembly, the fixture block sets up one side of mould drive block body, the fourth inclined plane has on the fixture block, just the fourth inclined plane with the mutual adaptation of third inclined plane, the terrace die with second slider fixed connection, the die with first slider fixed connection, just the terrace die with the die sets up relatively.

The supporting assembly comprises a material supporting plate and a guide sliding plate, the material supporting plate is fixedly connected with the ejector rod and is positioned above the ejector rod, the guide sliding plate is fixedly connected with the material supporting plate and is positioned above the material supporting plate, and the guide sliding plate is slidably connected with the first sliding block.

The first sliding block is provided with a first notch for mounting the female die.

And the second sliding block is provided with a second notch for mounting the male die.

Wherein, the first breach with the second breach all is the step structure setting.

The invention also provides a molding method of the clamp spring groove molding mechanism adopting the gear hub, which comprises the following steps:

placing the workpiece on the lower male die, driving the upper die driving block assembly and the material pressing core to move downwards by using a press machine, and pressing the workpiece;

the upper die driving block assembly continuously moves downwards along with the driving of the press machine, meanwhile, the clamping block abuts against the second sliding block, the lower die abuts against the first sliding block, and the first sliding block and the second sliding block both move towards the side wall of the gear hub;

and after the male die and the female die are respectively abutted against the side wall of the gear hub, the male die and the female die are utilized to punch and form the clamp spring groove of the workpiece.

The invention provides a method and a mechanism for forming a clamp spring groove of a gear hub, wherein a workpiece is arranged on a lower male die, and an upper die driving block assembly and a material pressing core are driven by a press machine to move downwards so as to press the workpiece; along with the drive of press, go up mould drive block subassembly and continuously move down, simultaneously the fixture block with the second slider supports and holds, the lower mould with first slider supports and holds, first slider with the second slider all moves towards the lateral wall of tooth hub removes, utilizes the terrace die with the die will the jump ring groove stamping forming of work piece, consequently making during the jump ring groove of work piece, need not additionally to increase a station, and this machine adds the station and also need not artifical unloading, realizes automatic equipment volume production, has promoted production efficiency to reduced equipment occupancy and cost of labor, need not adopt intermittent processing in addition, can not cause the cutter wearing and tearing serious, makeed the one-piece cost reduction.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of a snap spring groove forming mechanism of a gear hub in an open state.

Fig. 2 is a structural schematic diagram of the state that the material pressing core of the invention is just pressed against the workpiece.

FIG. 3 is a schematic structural view of the upper mold driving block body contact driving state of the present invention.

Fig. 4 is a schematic structural view of a work stamped by the clamp spring groove forming mechanism of the gear hub.

Fig. 5 is a flowchart of the steps of the method for forming the snap spring groove of the gear hub of the present invention.

1-ejector rod, 2-support component, 3-extrusion component, 4-lower die, 5-lower punch, 6-pressing core, 7-workpiece, 8-first slide block, 9-second slide block, 10-punch, 11-die, 12-upper die driving block component, 13-first inclined plane, 14-second inclined plane, 15-third inclined plane, 16-fourth inclined plane, 17-material supporting plate, 18-guide slide plate, 19-first notch, 20-second notch, 21-hollow groove, 22-opening, 23-upper die driving block body and 24-clamping block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

Referring to fig. 1 to 4, the invention provides a snap spring groove forming mechanism for a gear hub, which includes two groups of ejector rods 1, support assemblies 2, extrusion assemblies 3, lower dies 4, lower male dies 5, material pressing cores 6 and workpieces 7, wherein the number of the ejector rods 1 is two, the two groups of ejector rods 1 are symmetrically arranged on two sides of the lower dies 4, the support assemblies 2 are arranged on each group of ejector rods 1, the extrusion assemblies 3 are arranged on each group of support assemblies 2, the lower male dies 5 are arranged above the two extrusion assemblies 3, the workpieces 7 are arranged on the lower male dies 5, and the material pressing cores 6 are arranged above the workpieces 7;

each group of the extrusion assembly 3 comprises a first slider 8, a second slider 9, a male die 10, a female die 11 and an upper die driving block assembly 12, the first slider 8 is arranged above the supporting assembly 2 in a sliding manner, a first inclined surface 13 is arranged on the first slider 8, second inclined surfaces 14 are arranged on two sides of the lower die 4, the second inclined surfaces 14 are matched with the first inclined surfaces 13, the second slider 9 is connected with the first slider 8 in a sliding manner, a third inclined surface 15 is arranged on the second slider 9, the upper die driving block assembly 12 comprises an upper die driving block body 23 and a clamping block 24, the clamping block 24 is arranged on one side of the upper die driving block body 23, a fourth inclined surface 16 is arranged on the clamping block 24, the fourth inclined surface 16 is matched with the third inclined surface 15, the male die 10 is fixedly connected with the second slider 9, the female die 11 is fixedly connected with the first slider 8, and the male die 10 is arranged opposite to the female die 11.

In this embodiment, the workpiece 7 is a gear hub, the workpiece 7 is placed on the lower punch 5, the upper die driving block assembly 12 and the material pressing core 6 are driven by a press to move downwards to press the workpiece 7, the upper die driving block assembly 12 continuously moves downwards along with the driving of the press, the third inclined surface 15 and the fourth inclined surface 16 are adapted to each other, and then the second slide block 9 is abutted and held to move towards one side close to the workpiece 7 along with the downward movement of the upper die driving block body 23 and the fixture block 24, so that the punch 10 is driven to move towards one end close to the workpiece 7, and meanwhile, as the upper die driving block body 23 is abutted and held to the first slide block 8, and as the first inclined surface 13 and the second inclined surface 14 are adapted to each other, and then the first slide block 8 moves towards one side close to the workpiece 7 along with the abutment of the upper die driving block body 23, thereby driving the female die 11 to move towards one end close to the workpiece 7, so as to form that the female die 11 and the male die 10 are matched with each other, and stamping the shape of the clamp spring groove of the workpiece 7. Through the structural design, when making the jump ring groove of work piece 7, need not additionally to increase a station, and this machine adds the station and also need not artifical unloading of going up, realizes automatic equipment volume production, has promoted production efficiency to reduced equipment occupancy and cost of labor, need not adopt intermittent working in addition, can not cause the cutter wearing and tearing serious, makeed the one-piece cost reduction.

Further, the supporting component 2 includes a supporting plate 17 and a guiding sliding plate 18, the supporting plate 17 is fixedly connected to the ejector rod 1 and located above the ejector rod 1, the guiding sliding plate 18 is fixedly connected to the supporting plate 17 and located above the supporting plate 17, and the guiding sliding plate 18 is slidably connected to the first sliding block 8.

In this embodiment, the material supporting plate 17 is used for supporting the guide sliding plate 18, so that the first sliding block 8 can slide on the guide sliding plate 18.

Further, the first slide block 8 is provided with a first notch 19 for installing the female die 11. The second slide 9 has a second recess 20 for receiving the punch 10. The first notch 19 and the second notch 20 are both arranged in a step-shaped structure.

In this embodiment, the first notch 19 is provided for installing the position of the female die 11, the second notch 20 is provided for installing the male die 10, and the first notch 19 and the second notch 20 are both provided with a step structure, so that the installation and fixation of the female die 11 and the male die 10 can be facilitated, and the structural design of the clamp spring groove forming mechanism of the gear hub is more reasonable.

Further, the lower punch 5 has a hollow groove 21 thereon. The pad support plate 17 has an opening 22.

In this embodiment, the hollow groove 21 is provided to facilitate the concave die 11 to avoid the interference of the lower end surface of the lower convex die 5 with the movement of the concave die 11 when the concave die 11 punches the side wall of the workpiece 7, so that the concave die 11 slides more smoothly. The opening 22 is arranged to prevent the lower end face of the material supporting plate 17 from abutting against the lower die 4.

Further, the latch 24 is detachably connected to the upper die driving block body 23.

In this embodiment, the fixture block 24 is detachably connected to the upper die driving block body 23, so that the fixture block 24 is used for a long time and is detached and replaced after being worn seriously.

Referring to fig. 1 to 5, the present invention further provides a method for forming a snap spring groove forming mechanism using the above-mentioned gear hub, including the following steps:

s1: placing the workpiece 7 on the lower male die 5, driving the upper die driving block assembly 12 and the material pressing core 6 to move downwards by using a press machine, and pressing the workpiece 7;

s2: with the driving of the press machine, the upper die driving block assembly 12 continuously moves downwards, meanwhile, the fixture block 24 abuts against the second slide block 9, the lower die 4 abuts against the first slide block 8, and both the first slide block 8 and the second slide block 9 move towards the side wall of the gear hub;

s3: and after the male die 10 and the female die 11 are respectively abutted against the side wall of the gear hub, the male die 10 and the female die 11 are utilized to punch and form the clamp spring groove of the workpiece 7.

Wherein, the first stage: in the open state of the forming mechanism shown in fig. 1, the upper die driving block and the material pressing core 6 move downwards along the stamping direction with the press machine during working; and a second stage: as shown in fig. 2, the pressing core 6 is just pressed against the workpiece 7: in the downward movement process, the material pressing core 6 gradually presses the workpiece 7 on the lower convex die 5; and a third stage: the upper die driving block body 23 contacts the driving state as shown in fig. 3: after the material pressing core 6 presses the workpiece 7, the material pressing core 6 keeps still moving the upper die driving block body 23 and continues moving downwards along the stamping direction until the first sliding block 8 contacts with the lower die 4; meanwhile, the first sliding block 8 and the lower die 4 are guided by an inclined plane, so that the first sliding block 8 and the female die 11 move leftwards, the second sliding block 9 drives the male die 10 to move rightwards in the descending process of the upper die driving block component 12, when a critical point is reached, the male die 10 fixed on the second sliding block 9 and the female die 11 fixed on the first sliding block 8 punch out the clamp spring groove shape of the workpiece 7, and the bottom state is as shown in fig. 4.

In summary, the following steps: according to the invention, the machining clamp spring groove is changed into the stamping clamp spring groove, a set of die is added to the gear hub forming die, the work of stamping the clamp spring groove is completed in the stamping process, one process is cancelled, the cost is saved, and the efficiency is improved.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A clamp spring groove forming mechanism of a gear hub is characterized in that,

the extrusion die comprises ejector rods, support assemblies, extrusion assemblies, a lower die, a lower male die, a material pressing core and a workpiece, wherein the number of the ejector rods is two, the two groups of ejector rods are symmetrically arranged on two sides of the lower die, the support assemblies are arranged on each group of ejector rods, the extrusion assemblies are arranged on each group of support assemblies, the lower male die is arranged above the two extrusion assemblies, the workpiece is placed on the lower male die, and the material pressing core is arranged above the workpiece;

2. The forming mechanism for the clamp spring groove of the gear hub according to claim 1,

3. The forming mechanism for the clamp spring groove of the gear hub according to claim 1,

4. The forming mechanism for the clamp spring groove of the gear hub according to claim 3,

the second sliding block is provided with a second notch for mounting the male die.

5. The forming mechanism for the clamp spring groove of the gear hub according to claim 4,

the first notch and the second notch are both arranged in a step-shaped structure.

6. The forming method of the jump ring groove forming mechanism of the gear hub, which adopts the claim 5, is characterized by comprising the following steps: