Device and system for machining thrust wheel shell

Abstract

The utility model provides a device and a system for processing a thrust wheel shell, and relates to the field of engineering machinery, the device for processing the thrust wheel shell comprises two forming dies which can move relatively, and each forming die comprises a first base, a second base and a third base, the half cavity dies are installed on the first base, the two opposite half cavity dies are matched to form a cavity die, a blank located in the cavity die is forged and pressed, and the cavity die is matched with the outer contour of the thrust wheel shell; the two sliding grooves are formed in the first base and extend outwards from the two sides of the half cavity die in the axial direction of the cavity die, and the two opposite sliding grooves are matched to form two channels; and the two punching dies are mounted on the two sides of the cavity die in the axial direction in a relative movement manner and extend into the cavity die from the two channels correspondingly so as to extrude the forged and pressed blank in the axial direction, and the blank is machined into the thrust wheel shell.

Description

Technical Field

[0001] The utility model relates to the field of engineering machinery, and in particular to a device and a system for processing a track wheel shell. Background Art

[0002] As a kind of chassis part of crawler machine, the track roller is mainly used as a load-bearing structural part to allow the track chain to move along the wheel. It is used to guide and support the operation of the track chain to prevent the track chain from sliding laterally and derailing. The track roller often works in mud, water, sand and gravel, and is subject to large impact and lateral load. Therefore, the axial tensile strength of the track roller is required to be high, the lubricating oil in the shaft is not allowed to leak, and the wheel rim is wear-resistant and has low rolling resistance.

[0003] Most existing methods for processing the wheel shell of supporting rollers use the process of welding the wheel body, and the two halves of the wheel body are welded together. This method also has some defects. For example, due to the different materials of the welding material and the wheel shell, it is impossible to perform overall heat treatment processing to improve the hardness of the supporting roller, resulting in the core hardness of the supporting roller being low and lacking strength; the supporting roller has a large requirement for axial force during operation, and the wheel shell of the supporting roller is formed by welding, without overall strength and rigidity, and there are welds at the welding points. When the axial force increases, it is easy to cause fracture, stretching or oil leakage, etc., causing the supporting roller structure to fail; welded supporting rollers are prone to stress concentration under the action of axial force, and are prone to cracking during use, resulting in structural failure; since two parts need to be combined and welded, the processing cost is high; after welding, the concentricity tolerance of the outer circle of the wheel body on both sides is large, which reduces the stability performance during use. Utility Model Content

[0004] In view of this, the utility model provides a device and equipment for processing a track roller shell, which can improve the mechanical properties of the track roller shell.

[0005] As one aspect of an embodiment of the utility model, a device for processing a roller shell is provided, comprising two relatively movably arranged forming dies and two punching dies. Each of the forming dies comprises a first base, a half-cavity die and two slide grooves. The half-cavity die is mounted on the first base, and the two opposing half-cavity dies cooperate to form a cavity die, and the blank located in the cavity die is forged, wherein the cavity die matches the outer contour of the roller shell. Two slide grooves are formed on the first base, extending outward from both sides of the half-cavity die along the axial direction of the cavity die, and the two opposing slide grooves cooperate to form two channels. Two punching dies are relatively movably mounted on both sides of the cavity die along the axial direction, and extend into the cavity die from the two channels respectively, so as to extrude the forged blank in the axial direction, so that the blank is processed into the roller shell.

[0006] According to an embodiment of the utility model, the surface of one of the two first bases extends outwardly in the height direction to form a plurality of bosses, and the surface of the other of the two first bases is recessed inwardly in the height direction to form a plurality of grooves. The plurality of grooves cooperate with the plurality of bosses to limit the relative positions of the two half-cavity molds.

[0007] According to an embodiment of the utility model, each of the half-cavity molds includes a first through hole, two second through holes and two third through holes. The first through hole is recessed inwardly from the middle of the surface of the first base along the height direction to form the outer contour of the wheel axle of the supporting roller shell. The two second through holes are recessed inwardly from the surface of the first base along the height direction from both sides of the first through hole to form the outer contour of the hub of the supporting roller shell. The two third through holes are recessed inwardly from the surface of the first base along the height direction from the opposite sides of the two second through holes to form the outer contour of the rim of the supporting roller shell. The depths of the first through hole, the second through hole and the third through hole increase in sequence.

[0008] According to an embodiment of the utility model, a rounded corner groove is formed on each of the first bases, and the rounded corner groove is used to accommodate the corners of the half-cavity mold to disperse the stress of the half-cavity mold.

[0009] According to an embodiment of the utility model, each of the punching dies comprises a second base and a punch. The punch is mounted on the second base via a connecting portion, so that the punch extrude the forged blank to form the axial hole of the roller housing.

[0010] According to an embodiment of the utility model, the device further comprises a support, the support comprising four mounting platforms, each of the mounting platforms being recessed inwards on the side facing the cavity mold to form two parallel limit grooves. The mounting surfaces of the two forming molds and the two punching dies are respectively provided with convex blocks that match the limit grooves, the convex blocks match the limit grooves, and the two forming molds and the two punching dies are respectively mounted on the four mounting platforms.

[0011] According to an embodiment of the utility model, the top of each limiting groove extends horizontally to form two flanges, so that a slideway is formed between the two flanges. The protrusion is inserted from the edge of the limiting groove, slides along the slideway to the target position, and the protrusion is confined in the limiting groove by the two flanges.

[0012] According to an embodiment of the utility model, the extending direction of the limiting groove on each of the mounting platforms is perpendicular to the moving direction of the mounting platform.

[0013] According to an embodiment of the utility model, the above-mentioned device also includes a plurality of manipulators, which are respectively suitable for installing and driving at least one of the two forming dies and the two punching dies to move.

[0014] As another aspect of the embodiment of the utility model, a system for processing a roller shell is provided, including a cutting device, a heating device, a dephosphorization device, a preforming device, any of the above devices for processing a roller shell, and a quenching device. The cutting device is used to cut a round steel bar to obtain a cut bar, the heating device is used to heat the cut bar to 1050-1150°C to obtain a hot bar, the dephosphorization device is used to remove the oxide scale on the surface of the hot bar to obtain a dephosphorized bar, the preforming device is used to perform preforming forging on the dephosphorized bar to obtain the blank, any of the above devices for processing a roller shell is used to process the blank into the roller shell, and the quenching device is used to quench the roller shell to increase the hardness of the roller shell.

[0015] According to the device for processing the supporting wheel shell of the embodiment of the utility model, two opposing half-cavity molds cooperate to form a cavity mold that matches the contour of the supporting wheel shell, the blank located in the cavity mold is forged, and two punches are inserted into the cavity mold through channels located on both sides of the cavity mold, and the forged blank is extruded in the axial direction to be processed into the supporting wheel shell. The blank is forged into the supporting wheel shell by multi-directional forging, which changes the traditional welding and machining methods and improves the core hardness, wear resistance and tensile mechanical properties of the supporting wheel shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and other purposes, features and advantages of the present invention will become more apparent through the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

[0017] Figure 1 A half-section view of a roller housing according to an embodiment of the utility model is schematically shown;

[0018] Figure 2 A schematic perspective exploded view of a device for machining a roller housing according to an embodiment of the utility model is shown;

[0019] Figure 3 A three-dimensional diagram schematically showing a molding die according to an embodiment of the utility model; and

[0020] Figure 4 A block diagram of a system for machining a roller shell according to an embodiment of the utility model is schematically shown.

[0021] Description of reference numerals:

[0022] 1- support;

[0023] 11-Installation platform;

[0024] 12-limiting slot;

[0025] 13- flange;

[0026] 2-forming mold;

[0027] 21- first base;

[0028] 22-half cavity mold;

[0029] 23-chute;

[0030] 24- boss;

[0031] 25-groove;

[0032] 26-Rounded groove;

[0033] 3-Roller housing;

[0034] 31- axle;

[0035] 32-wheel hub;

[0036] 33- wheel rim;

[0037] 34-first through hole;

[0038] 35- second through hole;

[0039] 36- third through hole;

[0040] 37- fourth through hole;

[0041] 38- annular groove;

[0042] 4-die;

[0043] 41- second base;

[0044] 42-punch;

[0045] 43-Connection part. DETAILED DESCRIPTION

[0046] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings.

[0047] The terms used herein are only for describing specific embodiments and are not intended to limit the present invention. The terms "include", "comprises", etc. used herein indicate the existence of the features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0048] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

[0049] When using expressions such as "at least one of A, B, and C, etc.", it should generally be interpreted as the meaning of the expression generally understood by those skilled in the art. For example, "a system having at least one of A, B, and C" should include but not be limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc. When using expressions such as "at least one of A, B, or C, etc.", it should generally be interpreted as the meaning of the expression generally understood by those skilled in the art. For example, "a system having at least one of A, B, or C" should include but not be limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.

[0050] It should also be noted that the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "back", "left", "right", etc., are only for reference to the drawings and are not intended to limit the scope of protection of the present invention. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or constructions will be omitted when they may cause confusion in the understanding of the present invention.

[0051] Figure 1 A half-section view of a track wheel housing according to an embodiment of the utility model is schematically shown.

[0052] like Figure 1 As shown, the roller housing 3 includes an axle 31, a hub 32 and a rim 33. The axle 31 is located in the middle of the roller, the hub 32 is located on both sides of the axial direction of the axle 31, and the rim 33 is located on both sides of the axial direction of the two hubs 32 that are opposite to each other. The outer diameters of the axle 31, the hub 32 and the rim 33 increase in sequence.

[0053] like Figure 1As shown, the roller housing 3 has through holes along the axial direction, and the through holes include a first through hole 34 located inside the axle 31, a second through hole 35 located inside the hub 32 and located at both ends of the first through hole, a third through hole 36 located inside the wheel rim 33 and located outside the second through hole, and a fourth through hole 37 located outside the third through hole 36. The diameter of the first through hole 34 is greater than the diameter of the second through hole 35. The diameter of the third through hole 36 is greater than the diameter of the second through hole 35, the diameter of the fourth through hole 37 is greater than the diameter of the third through hole 36, and an annular groove 38 that is recessed inwardly along the axial direction is formed on the step surface (or transition surface) between the second through hole 35 and the third through hole 36.

[0054] In the process of implementing the utility model, it is found that if the supporting wheel shell 3 is welded by butt-jointing the two half wheel bodies, the supporting wheel will be in normal working condition with the axial force ( Figure 1 The increase of the stress concentration (in the direction of the arrow shown) can easily lead to stress concentration and even cracking in the weld.

[0055] Figure 2 A perspective exploded view of a device for machining a roller shell according to an embodiment of the utility model is schematically shown.

[0056] As one aspect of the embodiment of the present utility model, a device for processing a roller housing 3 is provided. Figure 2 As shown, the device for processing the roller shell 3 includes two relatively movable forming dies 2 and two punching dies 4. The half-cavity die 22 is installed on the first base 21, and the two opposing half-cavity dies 22 cooperate to form a cavity die, and the blank located in the cavity die is forged, wherein the cavity die matches the outer contour of the roller shell 3. Two slide grooves 23 are formed on the first base 21, extending outward from both sides of the half-cavity die 22 along the axial direction of the cavity die, and the two opposing slide grooves 23 cooperate to form two channels. The two punching dies 4 extend into the cavity die from the two channels respectively to extrude the forged blank in the axial direction, so that the blank is processed into the roller shell 3.

[0057] According to the device for processing the roller shell 3 of the embodiment of the utility model, two opposing half-cavity dies 22 cooperate to form a cavity die that matches the contour of the roller shell 3, the blank located in the cavity die is forged, and two punches 4 are inserted into the cavity die through channels located on both sides of the cavity die, and the forged blank is extruded in the axial direction so that the blank is processed into the roller shell 3. The blank is forged into the roller shell 3 by multi-directional forging. Compared with the roller shell 3 prepared by traditional welding, the core hardness, wear resistance and tensile mechanical properties of the roller shell 3 are improved.

[0058] Figure 3 A three-dimensional view of a forming die according to an embodiment of the utility model is schematically shown.

[0059] According to the embodiments of the present utility model, Figure 1 and Figure 2 As shown, the surface of one of the two first bases 21 extends outward in the height direction to form a plurality of bosses 24, and the surface of the other of the two first bases 21 is recessed inward in the height direction to form a plurality of grooves 25. The plurality of grooves 25 cooperate with the plurality of bosses 24 to align the two half-cavity molds 22, limit the relative position of the two half-cavity molds 22, and improve the accuracy of processing.

[0060] In an illustrative embodiment, Figure 1 As shown, the upper surface of the first base 21 located at the lower part of the two bases extends upward along the height direction to form four bosses 24, and the lower surface of the first base 21 located at the upper part is recessed upward along the height direction to form four grooves 25. The four bosses 24 and the four grooves 25 cooperate with each other to align the two half-cavity molds 22 and limit the relative positions of the two half-cavity molds 22.

[0061] In another exemplary embodiment, the upper surface of the first base 21 located at the lower side of the two bases is recessed downward in the height direction to form two grooves 25, and the lower surface of the first base 21 located at the upper side extends downward in the height direction to form two bosses 24. The two bosses 24 cooperate with the two grooves 25 to align the two half-cavity molds 22 and limit the relative positions of the two half-cavity molds 22.

[0062] According to an embodiment of the present disclosure, the cross-sectional shape of the boss 24 may include a circle, an ellipse, or a polygon.

[0063] According to the embodiments of the present utility model, Figure 1 As shown, each half-cavity mold 22 includes a first slot body, two second slot bodies and two third slot bodies. The first slot body is recessed inwardly from the middle of the surface of the first base 21 along the height direction to form the outer contour of the axle 31 of the roller shell 3. The two second slot bodies are recessed inwardly from the surface of the first base 21 along the height direction from both sides of the first slot body to form the outer contour of the hub 32 of the roller shell 3. The two third slot bodies are recessed inwardly from the surface of the first base 21 along the height direction from the opposite sides of the two second slot bodies to form the outer contour of the rim 33 of the roller shell 3. Among them, the depths of the first slot body, the second slot body and the third slot body are increased in sequence to match the outer contour of the roller shell 3.

[0064] According to the embodiments of the present utility model, Figure 1 and Figure 2 As shown, each first base 21 is provided with a rounded groove 26 , and the rounded groove 26 is used to accommodate the corners of the half-cavity mold 22 to disperse the stress borne by the half-cavity mold 22 .

[0065] In an exemplary embodiment, the half-cavity mold 22 has four corners, and four rounded corner grooves 26 are provided on the first base 21 to accommodate the four corners of the half-cavity mold 22. It is understood that the number of the rounded corner grooves 26 can be adjusted according to the number of corners of the half-cavity mold 22.

[0066] According to the embodiments of the present utility model, Figure 1 As shown, each die 4 includes a second base 41 and a punch 42. The punch 42 is mounted on the second base 41 through a connecting portion 43, so that the forged blank is pressed by the punch 42 to form an axial hole of the roller housing 3.

[0067] According to the embodiment of the utility model, the punch 42 extends into the roller housing 3 to extrude the forged blank to improve the rigidity of the middle portion of the roller housing 3 .

[0068] In an illustrative embodiment, the connecting portion 43 may be cylindrical.

[0069] In an exemplary embodiment, the punch 42 extends into the roller housing 3 to form an axial hole of the roller housing 3, and the axial hole serves as the second through hole 35 in the hub 32. It can be understood that the axial hole formed by the two punches extending into the blank can be a through hole or a blind hole.

[0070] The first through hole 34 in the axle 31 and the third through hole 36, the fourth through hole 37 and the annular groove 38 in the wheel rim 33 can be formed by machining after forging and stamping. Specifically, after forging and stamping, the first through hole 34 is machined in the axle (i.e., the middle part of the axial direction of the wheel rim) by machining, and the diameter of the first through hole is larger than the diameter of the second through hole 35. The fourth through hole 37 is machined in the wheel rim (i.e., the two opposite sides of the two second through holes 35), and the third through hole 36 is machined between the fourth through hole 37 and the second through hole 35, so that the surface of the third through hole forms a step surface with the surface of the second through hole, and the surface of the third through hole forms a step surface with the surface of the fourth through hole. The step surface between the third through hole 36 and the second through hole 35 is machined inward along the axial direction of the wheel rim, and an annular groove 38 connected with the third through hole is formed on the periphery of the second through hole.

[0071] In another exemplary embodiment, the outer diameter of the connecting portion 43 is configured to be the same as the diameter of the third through hole 36 or the fourth through hole 37 , and the connecting portion 43 partially extends into the cavity mold to form the third through hole 36 or the fourth through hole 37 .

[0072] In an alternative embodiment, the punch 42 extends into the roller housing 3 to form an axial hole of the roller housing 3, and the axial hole serves as the third through hole 36 or the fourth through hole 37 in the wheel rim 33. Taking the axial hole as the third through hole 36 as an example, after forging and stamping are completed, the roller housing is machined to form a second through hole 35 in communication with the third through hole 36 in the wheel hub 32, and the diameter of the second through hole 35 is smaller than the diameter of the third through hole 36, and a step is formed between the second through hole and the third through hole. A first through hole 34 in communication with the second through hole 35 is machined in the wheel axle 31, and the diameter of the first through hole is larger than the diameter of the second through hole. A fourth through hole 37 is machined at one end of the third through hole 36 close to the edge of the roller housing, and the diameter of the fourth through hole 37 is larger than the third through hole 36, and a step is formed between the third through hole 36 and the fourth through hole 37. An annular groove 38 is machined on the step surface between the third through hole 36 and the second through hole 35 so that the annular groove is located at the periphery of the second through hole 35 .

[0073] According to the embodiments of the present utility model, Figure 1 As shown, the device for processing the supporting wheel shell 3 also includes a support 1, and the support 1 includes four mounting platforms 11. Each mounting platform 11 is recessed inwards on the side facing the cavity mold to form two parallel limit grooves 12. Among them, the mounting surfaces of the two forming molds 2 and the two punching dies 4 are respectively provided with protrusions that match the limit grooves 12. The protrusions match the limit grooves 12 in a concave-convex manner, and the two forming molds 2 and the two punching dies 4 are respectively mounted on the four mounting platforms 11.

[0074] According to the embodiment of the utility model, among the four mounting platforms 11, the first mounting platform 11 for mounting the first forming die 2 located at the top is configured to be able to move up and down to drive the first forming die 2 to move, and cooperate with the second forming die 2 located at the bottom to forge the blank placed in the second forming die 2. Among the four mounting platforms 11, the two second mounting platforms 11 for mounting the two punching dies 4 are configured to be able to move along the axial direction of the cavity die to drive the two punching dies 4 to extend into the cavity die.

[0075] In an illustrative embodiment, the mounting platform 11 may be a pressure working platform of a press. The two punching dies 4 are respectively mounted on two pressure slide blocks (e.g., static pressure platforms) of the press that can move along the axial direction of the cavity mold. The second molding die is mounted on a pressure working platform of the press with a horizontal workbench, and the first molding die is mounted on a slide block of the press that can move along the height direction.

[0076] According to the embodiments of the present utility model, Figure 1As shown, the top of each limiting groove 12 extends horizontally to form two flanges 13, so that a slideway is formed between the two flanges 13. The protrusion is inserted from the edge of the limiting groove 12, slides along the slideway to the target position, and is confined in the limiting groove 12 by the two flanges 13.

[0077] According to the embodiments of the present utility model, Figure 1 As shown, the extending direction of the limiting groove 12 on each mounting platform 11 is perpendicular to the moving direction of the mounting platform 11 .

[0078] In an alternative embodiment, the device for processing the roller shell 3 further comprises a plurality of manipulators, which are respectively adapted to install and drive at least one of the two forming dies 2 to move, and drive the two punching dies 4 to move.

[0079] Figure 4 A block diagram of a system for machining a roller shell 3 according to an embodiment of the utility model is schematically shown.

[0080] As another aspect of the present invention, a system for processing a roller housing 3 is provided. Figure 4 As shown, the system for processing the roller shell 3 includes a cutting device, a heating device, a dephosphorization device, a preforming device, any of the above devices for processing the roller shell 3, and a quenching device. The cutting device is used to cut the round steel bar to obtain a cut bar, the heating device is used to heat the cut bar to 1050-1150°C to obtain a hot bar, the dephosphorization device is used to remove the oxide scale on the surface of the hot bar to obtain a dephosphorized bar, the preforming device is used to perform preforming forging on the dephosphorized bar to obtain a blank, any of the above devices for processing the roller shell 3 is used to process the blank into the roller shell 3, and the quenching device is used to quench or temper the roller shell 3 to improve the hardness of the roller shell 3 and achieve mechanical properties that cannot be achieved by welding.

[0081] According to the device for processing the supporting wheel shell 3 provided by the embodiment of the utility model, the supporting wheel shell 3 with outer dimensions and inner dimensions close to the dimensions of the finished product can be processed, and the finished product can be assembled after further precision machining.

[0082] According to an embodiment of the utility model, the system for processing the roller shell 3 also includes machining equipment and high-frequency quenching equipment. The machining equipment is used to further process the roller shell 3 after quenching or tempering, such as processing the first through hole 34, the third through hole 36, the fourth through hole 37 and the annular groove 38. Furthermore, the machined roller shell 3 can be subjected to high-frequency high-frequency quenching to further improve the hardness of the roller shell 3. After the roller shell 3 is assembled into a roller, the roller can be tested for air tightness by an air tightness testing device, and after the test is qualified, the surface of the roller can be sprayed by a surface coating device.

[0083] The embodiments of the present invention are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present invention is defined by the attached claims and their equivalents. Without departing from the scope of the present invention, a person skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present invention.

Claims

1. A device for machining a roller housing, characterized in that: include: Two relatively movable forming dies, each of which comprises: First base; a half-cavity mold, mounted on the first base, wherein two opposing half-cavity molds cooperate to form a cavity mold, and forging the blank located in the cavity mold, wherein the cavity mold matches the outer contour of the supporting wheel shell; and Two slide grooves are formed on the first base, extending outward from both sides of the half-cavity mold along the axial direction of the cavity mold, and the two opposite slide grooves cooperate to form two channels; and Two punching dies are relatively movably installed on both sides of the cavity die along the axial direction, and extend into the cavity die from the two channels respectively, so as to extrude the forged blank in the axial direction, so that the blank is processed into the supporting wheel shell.

2. The device according to claim 1, characterized in that The surface of one of the two first bases extends outwardly in the height direction to form a plurality of bosses; the surface of the other of the two first bases is recessed inwardly in the height direction to form a plurality of grooves; The plurality of grooves cooperate with the plurality of bosses to limit the relative positions of the two half-cavity molds.

3. The device according to claim 1, characterized in that Each of the half-cavity molds comprises: A first groove body is recessed inwardly along the height direction from the middle of the surface of the first base to form the outer contour of the axle of the supporting wheel shell; Two second grooves are respectively recessed inwardly from the surface of the first base along the height direction from both sides of the first groove to form the outer contour of the hub of the supporting wheel shell; and Two third grooves are respectively recessed inwardly from the surface of the first base along the height direction from opposite sides of the two second grooves to form the outer contour of the rim of the supporting wheel shell; Wherein, the depths of the first slot body, the second slot body and the third slot body increase successively.

4. The device according to claim 1, characterized in that A rounded corner groove is formed on each of the first bases, and the rounded corner groove is used to accommodate the corners of the half-cavity mold to disperse the stress of the half-cavity mold.

5. The device according to claim 1, characterized in that Each of the dies comprises: A second base; and A punch is installed on the second base through a connecting portion, so that the forged blank is extruded by the punch to form an axial hole of the supporting wheel shell.

6. The device according to any one of claims 1 to 5, characterized in that Also included is a support, the support comprising: Four mounting platforms, each of which is concave inwards on one side facing the cavity mold to form two parallel limiting grooves; Among them, the mounting surfaces of the two forming dies and the two punching dies are respectively provided with protrusions that cooperate with the limiting grooves, and the protrusions cooperate with the limiting grooves in a concave-convex manner, so that the two forming dies and the two punching dies are respectively mounted on the four mounting platforms.

7. The device according to claim 6, characterized in that The top of each limiting groove extends relatively horizontally to form two flanges, so that a slideway is formed between the two flanges; The protrusion is inserted from the edge of the limiting groove, slides along the slideway to the target position, and the protrusion is confined in the limiting groove by the two flanges.

8. The device according to claim 7, characterized in that The extending direction of the limiting groove on each of the mounting platforms is perpendicular to the moving direction of the mounting platform.

9. The device according to any one of claims 1 to 5, characterized in that Also includes: A plurality of manipulators are respectively adapted to install and drive at least one of the two forming dies and the two punching dies to move.

10. A system for machining a roller housing, characterized in that: include: Cutting equipment, used for cutting round steel bars to obtain cut bars; A heating device is used to heat the cut bar to 1050-1150°C to obtain a hot bar; Dephosphorization equipment, used to remove the oxide scale on the surface of the hot bar material to obtain dephosphorized bar material; Preforming equipment, used for preforming and forging the dephosphorized bar material to obtain the blank; The device for machining a roller shell according to any one of claims 1 to 9, used for machining the blank into the roller shell; as well as The quenching equipment is used to quench the supporting wheel shell to increase the hardness of the supporting wheel shell.

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