CN213469220U - Steel ring wheel hub and mold processing thereof - Google Patents

Abstract

The utility model provides a steel ring wheel hub and mold processing thereof, steel ring wheel hub's mold processing includes tensile mould, tensile mould adopts the anti-stretching structure, include: a female die, the female die comprising: the die comprises a die body, a die body and a die core, wherein the die body is provided with a concave part with a downward opening; the pressing mechanism is arranged in the concave part and is used for pressing a planar metal plate to be processed; and the terrace die, the terrace die set up in the die below includes: the shape of the male die body is matched with the concave part of the female die body; and the lower die fixing plate is used for fixing the male die body.

Description

Steel ring wheel hub and mold processing thereof

Technical Field

The utility model relates to an auto-parts processing field especially relates to a steel ring wheel hub and mold processing thereof.

Background

At present, the manufacturing technology of the heavy truck steel ring wheel hub mainly comprises casting, forging and welding two parts after rolling of a metal plate part, wherein molten iron is poured into a model for cooling forming in the casting process, and due to process limitation, air holes are easily generated inside the wheel hub, and the strength of the wheel hub is influenced due to insufficient tissue density. The forging cost is high, and the welding process requirement is high and the relative cost is high due to the high requirement of the welding seam in the plate assembly welding. For heavy trucks, there are high demands on the strength and performance of the wheel hub.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a steel ring wheel hub and mold processing to the technical problem who proposes above at least partial solution.

(II) technical scheme

According to the utility model discloses an aspect provides a steel ring wheel hub's mold processing, mold processing is including tensile mould, tensile mould adopts the anti-stretching structure, include:

a female die, the female die comprising:

the die comprises a die body, a die body and a die core, wherein the die body is provided with a concave part with a downward opening;

the pressing mechanism is arranged in the concave part and is used for pressing a planar metal plate to be processed; and

the terrace die, the terrace die set up in the die below includes:

the shape of the male die body is matched with the concave part of the female die body;

and the lower die fixing plate is used for fixing the male die body.

According to the utility model discloses an embodiment, the die body still has hold-down mechanism accommodation space, the hold-down mechanism accommodation space with the depressed part is linked together.

According to the utility model discloses an embodiment, hold-down mechanism includes:

the pressing block is arranged in the concave part, the first end of the pressing block faces the male die at the lower part, the horizontal plane of the concave part is exposed, and the second end of the pressing block is arranged in the holding space of the pressing mechanism; and

and the compression spring is arranged in the holding space of the compression mechanism, the first end of the compression spring is relatively fixed with the female die body, and the second end of the compression spring is connected with the compression block.

According to the utility model discloses an embodiment, terrace die body upper portion is provided with location portion for fix a position the plane metal plate spare.

According to the utility model discloses an embodiment, location portion is bellied step.

According to the utility model discloses an embodiment, the mold processing still includes the roll forming die, the roll forming die includes:

the upper male die comprises a bulge matched with the shape of the inner surface of the hub finished part;

the lower female die is arranged below the upper male die and is provided with a groove matched with the shape of the outer surface of the hub finished part;

the rolling wheel dies are arranged on the side faces of the blank oppositely, the blank to be processed is extruded in the opposite direction and can roll along the side faces of the blank, and the side faces of the rolling wheel dies are matched with the side faces of the blank in shape and can move towards or away from the blank.

According to another aspect of the present invention, there is provided a steel ring hub, which is manufactured by using a planar metal plate as a raw material and using the manufacturing method of the steel ring hub as described above.

(III) advantageous effects

According to the above technical scheme, the utility model discloses steel ring wheel hub and mold processing have one of them of following beneficial effect at least:

(1) the steel ring wheel hub of the utility model is stable and universal, and has low production cost;

(2) the steel ring hub produced by the utility model has higher strength than the existing steel ring hub, the strength of the steel ring is improved by the integral heat treatment of the rolled blank after stretching, the integral molding of the steel ring has no welding and the heat treatment ensures that the steel ring hub has high strength, and the service life is longer;

(3) the utility model discloses concentric axiality's precision is high behind the steel ring shaping, because the utility model discloses a through whole shaping back (no welding), disposable clamping carries out the machine tooling again, therefore can guarantee steel ring excircle and cooperation shaft hole site concentricity.

Drawings

Fig. 1 is the utility model discloses steel ring wheel hub's tensile mould's schematic structure view.

Fig. 2 is a schematic structural view of a rolling forming mold of a steel ring hub according to the embodiment of the present invention.

Fig. 3 is the embodiment of the present invention provides a steel ring hub.

Fig. 4 is a schematic sectional view of a steel ring hub according to an embodiment of the present invention.

[ description of the main reference numerals in the drawings ] for the embodiments of the present invention

100-stretching a mould; 110-a female die; 120-male die; 111-an upper die holder; 112-a female die body; 113-a hold down mechanism; 1131, pressing blocks; 1132 — a compression spring; 120-male die; 121-a lower die holder; 122-lower die fixing plate; 123-a male die body; 124-cylindrical step; 200-rolling and forming a mould; 210-a top punch; 220-lower concave die; 230-rolling wheel die; 300-a planar plate member; 400-blank.

Detailed Description

The utility model provides a steel ring wheel hub and mold processing thereof, steel ring wheel hub's mold processing includes tensile mould, tensile mould adopts the anti-stretching structure, include: a female die, the female die comprising: the die comprises a die body, a die body and a die core, wherein the die body is provided with a concave part with a downward opening; the pressing mechanism is arranged in the concave part and is used for pressing a planar metal plate to be processed; and the terrace die, the terrace die set up in the die below includes: the shape of the male die body is matched with the concave part of the female die body; and the lower die fixing plate is used for fixing the male die body.

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings.

Certain embodiments of the present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the invention are shown. Indeed, various embodiments of the invention may be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will satisfy applicable legal requirements.

In a first exemplary embodiment of the present invention, a mold for machining a steel ring hub is provided. The utility model discloses a steel ring wheel hub makes through metal plate spare blank, heating stretch, roll forming, thermal treatment, machining with whole metal plate spare, and the mold processing who adopts includes tensile mould and roll forming mould.

The following describes a steel ring hub processing mold in combination with a steel ring hub process flow. The utility model discloses steel ring wheel hub manufacturing approach includes:

and S1, cutting the sheet metal parts.

And determining the shape and size of a plane metal plate piece unfolded by the steel ring hub according to the required size of the formed steel ring hub, and performing cold cutting by adopting the whole metal plate piece material to obtain the cut plane metal plate piece.

S2, heating stretching or cold stretching.

Heating the cut flat sheet metal part to 800-900 deg.c or saponifying the surface of the cut flat sheet metal part, and stretching in a stretching mold to form pre-formed blank. Fig. 1 is the utility model discloses steel ring wheel hub's tensile mould's schematic structure view. As shown in fig. 1, the drawing die 100 has a reverse drawing structure including a female die 110 and a male die 120, wherein the male die 120 is located at a lower position and the female die 110 is located at an upper position. The punch 120 has a cylindrical step 124 on which the flat sheet metal part is placed, and the die 110 has a recess that is in shape fit with the cylindrical step 124, and a pressing mechanism for pressing the flat sheet metal part is provided in the recess.

Specifically, the female die 110 includes an upper die holder 111, a female die body 112, and a pressing mechanism 113. The upper die holder 111 and the die body 112 are connected with each other, the die body 112 has a recessed portion with a downward opening, and the die body 112 further has a holding space for a pressing mechanism located between the upper die holder 111 and the recessed portion. The pressing mechanism 113 includes a pressing block 1131 and a pressing spring 1132, wherein the pressing block is disposed in the recessed portion, one end of the pressing block faces the lower part of the male mold 120, the horizontal surface of the recessed portion is exposed, and the other end of the pressing block is disposed in the pressing mechanism accommodating space and connected to the pressing spring 1132. The compression spring 1132 is disposed in the compression mechanism accommodating space, one end of the compression spring abuts against the upper die base, and the other end of the compression spring is connected to the compression block 1131.

The punch 121 includes a lower die holder 121, a lower die fixing plate 122, and a punch body 123. The lower die fixing plate 122 is fixed on the lower die holder 121, and the male die body 123 is disposed on the lower die fixing plate 122. The male die body 123 and the lower die fixing plate 122 are stepped and are matched with the concave part of the female die 110 in shape.

A through hole cylindrical hole is formed in the sheet metal material of the planar sheet metal part, and the cylindrical step of the male die 120 is used as a positioning reference. Illustratively, the female die 110 is provided with a cylindrical pressing block 1131, a compression spring 1132 is preloaded on the pressing block 1131, and the length of the pressing block 1131 is higher than the surface of the female die, i.e., the pressing block 1131 extends out of the concave part of the female die 110. In the process of pressing down the female die 110, the pressing block 1131 can press down the workpiece first, so that the planar metal plate does not deviate, the cylindrical step 124 enters the concave portion after the female die 110 is pressed down to press down the planar metal plate, and the female die 110 performs reverse stretch forming on the planar metal plate after the pressing down, so as to obtain a preformed blank.

And S3, rolling and forming.

The preformed blank is sleeved into a rolling forming die, the blank is repeatedly rolled to obtain a rolling formed blank, and the material internal part of the rolling formed blank is more compact in structure through repeated rolling, so that the product strength can be effectively improved. Preferably, the blank can be heated and then subjected to roll forming, so that the formed blank can improve the tightness of material molecules and reduce the deformation of subsequent heat treatment. Fig. 2 is a schematic structural view of a rolling forming mold of a steel ring hub according to the embodiment of the present invention. As shown in fig. 2, the roll forming die 200 includes three parts, namely an upper male die 210, a lower female die 220 and two roll dies 230 with the same size.

Wherein the upper male die 210 comprises a protrusion matched with the shape of the inner surface of the finished hub part, and the lower female die 220 is arranged below the upper male die 210 and is provided with a groove matched with the shape of the outer surface of the finished hub part. The rolling wheel die 230 is arranged on the side surface of the blank, and the side surface of the rolling wheel die 230 is matched with the shape of the side surface of the blank and can move towards the direction close to or far away from the blank.

The upper punch 210 and the lower punch 220 are mutually extruded, in the relative extrusion process, the rolling wheel dies 230 on two sides roll the workpiece at the same time, the longitudinal and transverse shafts are mutually extruded and are also rolled and extruded at the same time, and finally the workpiece is rolled and formed. After forming, the rolling wheel molds 230 on the two sides are retracted, the upper male mold 210 is opened upwards, and the blank formed by rolling is retained on the lower female mold 220.

And S4, heat treatment.

And (3) putting the blank formed by rolling into a heat treatment multipurpose furnace for quenching and tempering, and improving the integral hardness and strength of the steel ring hub through heat treatment. The strength of the steel ring is improved through the integral heat treatment of the rolled blank after stretching, the integral forming of the steel ring is free of welding and the heat treatment ensures that the steel ring hub has high strength and longer service life.

And S5, machining.

And (3) removing the cutting of the blank after the heat treatment by using a lathe or a milling machine, so that the precision of some important dimensions of the steel ring hub and the precision requirement of each mounting hole position are improved. And performing surface treatment and packaging on the finished semi-finished product to obtain a finished product as required.

The utility model discloses a steel ring wheel hub manufacturing method simple process, and stable general, low in production cost, the precision of concentric axiality is high after the steel ring shaping, and the steel ring wheel hub that produces is higher than current steel ring intensity, and life is longer.

In a second exemplary embodiment of the present invention, a steel ring hub is provided. Fig. 3 is the embodiment of the present invention provides a steel ring hub. Fig. 4 is a schematic sectional view of a steel ring hub according to an embodiment of the present invention. The steel ring hub is obtained by taking a plane plate piece as a raw material and adopting the manufacturing method of the steel ring hub as the first embodiment or the second embodiment. The steel ring hub of this embodiment has following advantage compared with the prior art:

1. the utility model discloses steel ring wheel hub adopts the metal plate spare as raw and other materials, and metal plate spare steel has passed through rolling finished steel after the steelworks dispatches from the factory, and the chemical composition and the material density of its material are better.

2. The utility model discloses steel ring wheel hub guarantees through the hot stretching that the inside metal streamline of material does not produce the fracture to can improve the inside closely knit degree of material.

3. The utility model discloses steel ring wheel hub passes through roll forming, can guarantee steel ring wheel hub's wholeness, consequently need not the welding, has kept steel ring wheel hub's overall structure flawless.

4. The current steel ring hub manufacturing process does not have the heat treatment process, because the steel ring after welding cannot be subjected to heat treatment again, cracks are generated, and therefore the process is not allowed. The utility model discloses a metal plate spare is raw and other materials, can carry out thermal treatment process after through the shaping blank again, because whole not adopting the welding, therefore can carry out whole thermal treatment, improves steel ring wheel hub's whole hardness and intensity.

5. And through subsequent machining, the precision and the air tightness of the steel ring hub are ensured in one step.

For the purpose of brief description, any technical features that can be applied to the same in the above embodiment 1 are described herein, and the same description need not be repeated.

So far, the embodiments of the present invention have been described in detail with reference to the accompanying drawings. It is to be noted that, in the attached drawings or in the description, the implementation modes not shown or described are all the modes known by the ordinary skilled person in the field of technology, and are not described in detail. Further, the above definitions of the various elements and methods are not limited to the various specific structures, shapes or arrangements of parts mentioned in the examples, which may be easily modified or substituted by those of ordinary skill in the art.

It should also be noted that directional terms, such as "upper", "lower", "front", "rear", "left", "right", etc., used in the embodiments are only directions referring to the drawings, and are not intended to limit the protection scope of the present invention. Throughout the drawings, like elements are represented by like or similar reference numerals. Conventional structures or constructions will be omitted when they may obscure the understanding of the present invention.

And the shapes and sizes of the respective components in the drawings do not reflect actual sizes and proportions, but merely illustrate the contents of the embodiments of the present invention. Furthermore, in the claims, any reference signs placed between parentheses shall not be construed as limiting the claim.

Unless otherwise indicated, the numerical parameters set forth in the specification and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by the present invention. In particular, all numbers expressing quantities of ingredients, reaction conditions, and so forth used in the specification and claims are to be understood as being modified in all instances by the term "about". Generally, the expression is meant to encompass variations of ± 10% in some embodiments, 5% in some embodiments, 1% in some embodiments, 0.5% in some embodiments by the specified amount.

Furthermore, the word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements.

The use of ordinal numbers such as "first," "second," "third," etc., in the specification and claims to modify a corresponding element does not by itself connote any ordinal number of the element or any ordering of one element from another or the order of manufacture, and the use of the ordinal numbers is only used to distinguish one element having a certain name from another element having a same name.

In addition, unless steps are specifically described or must occur in sequence, the order of the steps is not limited to that listed above and may be changed or rearranged as desired by the desired design. The embodiments described above may be mixed and matched with each other or with other embodiments based on design and reliability considerations, i.e., technical features in different embodiments may be freely combined to form further embodiments.

Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise. Also in the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware.

Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the invention and aiding in the understanding of one or more of the various disclosed aspects. However, the disclosed method should not be interpreted as reflecting an intention that: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, disclosed aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above-mentioned embodiments are only specific embodiments of the present invention, and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims (7)

1. The utility model provides a steel ring wheel hub's mold processing, characterized in that, the mold processing includes tensile mould (100), tensile mould (100) adopt the anti-stretching structure, include:

a female die (110), the female die (110) comprising:

the die body (112), the die body (112) has the depressed part with the downward opening;

the pressing mechanism (113), the said pressing mechanism (113) is set up in the said dent, is used for pressing the flat panel plate to be processed; and

a male die (120), the male die (120) being disposed below the female die (110), comprising:

the shape of the male die body (123) is matched with the concave part of the female die body (112);

and the lower die fixing plate (122) is used for fixing the male die body (123).

2. The machining die for the steel ring hub according to claim 1, wherein the female die body (112) further comprises a pressing mechanism accommodating space, and the pressing mechanism accommodating space is communicated with the recess.

3. The machining die for steel ring hubs according to claim 2, wherein said pressing mechanism (113) comprises:

the pressing block (1131) is arranged in the concave part, the first end of the pressing block (1131) faces towards the male die (120) at the lower part, the horizontal plane of the concave part is exposed, and the second end of the pressing block is arranged in the holding space of the pressing mechanism; and

and the compression spring (1132), the compression spring (1132) is arranged in a compression mechanism accommodating space, the first end is relatively fixed with the female die body (112), and the second end is connected with the compression block (1131).

4. The processing die for the steel ring hub as claimed in claim 1, wherein a positioning part is arranged at the upper part of the male die body (123) and used for positioning the plane plate.

5. The processing die for the steel ring hub as claimed in claim 4, wherein the positioning part is a raised step.

6. The machining die of the steel ring hub as claimed in claim 1, further comprising a rolling forming die (200), wherein the rolling forming die (200) comprises:

an upper male die (210), wherein the upper male die (210) comprises a bulge which is matched with the shape of the inner surface of the hub finished part;

the lower female die (220) is arranged below the upper male die (210), and is provided with a groove matched with the outer surface shape of the hub finished part;

the rolling wheel dies (230) are arranged on the side faces of the blank to be machined, the blank is extruded in opposite directions and can roll along the side faces of the blank, and the side faces of the rolling wheel dies (230) are matched with the side faces of the blank in shape and can move towards or away from the blank.

7. A steel ring hub, characterized in that the steel ring hub is processed by taking a plane plate as a raw material, and is manufactured by adopting the processing die of the steel ring hub as claimed in any one of claims 1 to 6.

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