Differential pressure die set for hub manufacturing

Abstract

The utility model discloses a differential pressure mould frame for hub manufacturing, which comprises a top mould, a mould core is mounted at the bottom of the top mould, a left mould is mounted on one side of the mould core, a right mould is mounted on the other side of the mould core, and the right mould and the left mould are driven by a driving component on the surface of a worktable; the driving assembly comprises a connecting column, and the end of the connecting column is fixed to the left side mold. According to the differential pressure die frame for hub manufacturing, an output shaft of a stepping motor drives a gear to rotate, a left side die and a right side die are driven by an upper rack and a lower rack to synchronously move outwards or inwards correspondingly, die opening or die closing work of the left side die and the right side die is completed, and the mode that two sets of motors are used for driving work is replaced; the number of used motors is reduced, the complexity of the system is reduced, the mechanical structure is simple, the reliability is relatively high, and the manufacturing and processing cost of the device is reduced.

Description

Technical Field

[0001] The utility model relates to the field of mold frames, in particular to a differential pressure mold frame for manufacturing a wheel hub. Background Art

[0002] The wheel hub is the part of the wheel center where the axle is installed. It is an important part that connects the brake drum (or brake disc), wheel disc and half-axle. It is mounted on the axle tube or steering knuckle journal with a bearing sleeve. The wheel hub is equipped with a wheel hub bearing. A small amount of grease can be added, but do not add too much grease, otherwise it will increase resistance and even cause overflow. The wheel hub and spokes of the spoke wheel are cast as one body, with high strength, and are mainly used for heavy-duty vehicles.

[0003] When the wheel hub is manufactured, a wheel hub mold frame is required;

[0004] The working principle of the wheel hub mold frame mainly includes the following steps:

[0005] Adding materials: Add appropriate amount of raw materials into the mold frame;

[0006] Molding: The raw materials are formed in the mold by controlling pressure, temperature and other conditions;

[0007] Cooling: Allow the formed wheel hub to cool in the mold to fix the shape;

[0008] Demolding: remove the molded wheel hub from the mold base;

[0009] The wheel hub mold frame mainly includes a left mold, a right mold and an upper mold. When the left mold, the right mold and the upper mold are closed, an integral mold is formed. Molten aluminum is poured at the gate of the integral mold to perform molding. The left mold and the right mold are driven by two sets of cylinders respectively. However, the setting of two sets of cylinders will directly increase the manufacturing and processing cost of the device. Utility Model Content

[0010] The utility model aims to provide a differential pressure die frame for manufacturing a wheel hub, so as to solve the defects mentioned in the above background technology.

[0011] To achieve the above object, a differential pressure die frame for manufacturing a wheel hub is provided, comprising a top die, a die core is installed at the bottom of the top die, a left die is installed on one side of the die core, and a right die is installed on the other side of the die core, and the right die and the left die are driven on the surface of a workbench by a driving assembly;

[0012] The driving assembly includes a connecting column, and the end of the connecting column is fixed to the left mold, and a limit block is fixedly installed on the upper left side of the connecting column, and a transmission column is fixedly installed on the lower left side of the connecting column. The bottom of the transmission column is fixedly connected to the upper rack, and the bottom of the upper rack is movably installed with a lower rack, and the lower rack is arranged parallel to the upper rack. At the same time, a gear is movably installed between the lower rack and the upper rack, and the rotating shaft of the gear is fixedly connected to the output shaft of the stepper motor.

[0013] Preferably, the left mold and the right mold are driven by gears and stepper motors, and the left mold is driven by a connecting column, a transmission column and an upper rack, and the bottom of the upper rack is meshed with the gear.

[0014] Preferably, the right mold is driven by a connecting column, a transmission column and a lower rack, and the surface of the lower rack is meshingly connected with the gear.

[0015] Preferably, the ends of the upper rack and the lower rack are fixedly installed with sliders, and a slide groove is opened on the bottom surface of the U-shaped frame, and a slide groove is opened at the bottom of the workbench. At the same time, the upper rack and the lower rack are slidably set inside the slide groove through the sliders thereon, and the cross-sections of the slider and the slide groove are both dovetail-shaped.

[0016] Preferably, the limiting block at the end of the connecting column is slidably arranged inside the limiting track, and the end of the limiting track is screwed and fixed to the support seat, and the bottom of the support seat is screwed and fixed to the workbench.

[0017] Preferably, an opening is provided on the surface of the workbench, and the opening is a rectangular structure, and a guide column is fixedly installed inside the opening, and the guide column is inserted into the guide hole provided on the transmission column.

[0018] Preferably, the connecting column, the transmission column and the upper rack are of a "U"-shaped structure, and the connecting column and the upper rack are arranged in parallel.

[0019] Preferably, the left mold and the right mold are structures that move toward each other synchronously, and the left mold and the right mold are structures that move horizontally.

[0020] Preferably, sliding blocks are installed at the bottom of the left mold and the right mold, and the left mold and the right mold are slidably arranged in a sliding groove opened on the surface of the workbench through the sliding blocks at the bottom.

[0021] Preferably, the limiting track and the supporting seat are combined together to form an "L"-shaped structure, and the limiting track, the supporting seat and the workbench are combined together to form a "U"-shaped structure.

[0022] Compared with the prior art, the beneficial effects of the utility model are: the output shaft of the stepper motor drives the gear to rotate, and the upper rack and the lower rack are used to drive the left mold and the right mold to move synchronously outward or inward respectively, thereby completing the opening or closing of the left mold and the right mold, replacing the use of two sets of motors for driving work, reducing the number of motors used, reducing the complexity of the system, the mechanical structure is relatively simple, the reliability is relatively high, and the manufacturing and processing cost of the device is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a front view schematic diagram of the structure of the utility model;

[0025] Figure 2 The utility model structure Figure 1 Schematic diagram of mold opening;

[0026] Figure 3 The utility model structure Figure 2 A top view of

[0027] Figure 4 The utility model structure Figure 2 Schematic diagram of the mold installation structure on the left side.

[0028] Numbers in the figure: 1. top mold; 2. left mold; 3. right mold; 4. mold core; 5. connecting column; 6. limit block; 7. limit track; 8. support seat; 9. workbench; 91. opening; 10. guide column; 11. transmission column; 12. upper rack; 13. gear; 14. stepper motor; 15. lower rack; 16. slider; 17. U-shaped frame; 18. drive assembly. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0031] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0033] See also Figure 1-4 The utility model provides a differential pressure mold frame for manufacturing a wheel hub, comprising a top mold 1, a mold core 4 is installed at the bottom of the top mold 1, and a left mold 2 is installed on one side of the mold core 4, and a right mold 3 is installed on the other side of the mold core 4, and the right mold 3 and the left mold 2 are driven on the surface of a workbench 9 by a driving component 18;

[0034] The driving assembly 18 includes a connecting column 5, and the end of the connecting column 5 is fixed to the left mold 2. At the same time, a limit block 6 is fixedly installed on the upper left side of the connecting column 5, and a transmission column 11 is fixedly installed on the lower left side of the connecting column 5. The bottom of the transmission column 11 is fixedly connected to the upper rack 12, and the bottom of the upper rack 12 is movably installed with a lower rack 15, and the lower rack 15 is arranged parallel to the upper rack 12. At the same time, a gear 13 is movably installed between the lower rack 15 and the upper rack 12, and the rotating shaft of the gear 13 is fixedly connected to the output shaft of the stepper motor 14.

[0035] Working principle: When the left mold 2 and the right mold 3 are opened or closed, the external switch of the stepper motor 14 is started, and the output shaft of the stepper motor 14 drives the gear 13 to rotate, and the upper rack 12 and the lower rack 15 are used to drive the left mold 2 and the right mold 3 to move outward or inward synchronously, so as to complete the opening or closing of the left mold 2 and the right mold 3. Instead of using two sets of motors for driving, the number of motors used is reduced, the complexity of the system is reduced, the mechanical structure is relatively simple, the reliability is relatively high, and the manufacturing and processing cost of the device is reduced.

[0036] As a preferred embodiment, the left mold 2 and the right mold 3 are both driven by a gear 13 and a stepper motor 14, and the left mold 2 is driven by a connecting column 5, a transmission column 11 and an upper rack 12, and the bottom of the upper rack 12 is meshed with the gear 13.

[0037] The right mold 3 is driven by the connecting column 5 , the transmission column 11 and the lower rack 15 , and the surface of the lower rack 15 is meshed and connected with the gear 13 .

[0038] like Figure 1-4 As shown: the upper side of the gear 13 is meshed with the upper rack 12, and the lower side of the gear 13 is meshed with the lower rack 15, both of which drive the left mold 2 and the right mold 3 to move synchronously outward or inward through the connecting column 5 and the transmission column 11.

[0039] As a preferred embodiment, the ends of the upper rack 12 and the lower rack 15 are fixedly installed with a slider 16, and a slide groove is opened on the bottom surface of the U-shaped frame 17, and a slide groove is opened at the bottom of the workbench 9. At the same time, the upper rack 12 and the lower rack 15 are slidably set inside the slide groove through the slider 16 thereon, and the cross-section of the slider 16 and the slide groove are both dovetail-shaped.

[0040] The limiting block 6 at the end of the connecting column 5 is slidably arranged inside the limiting track 7, and the end of the limiting track 7 is screwed and fixed to the support seat 8, and the bottom of the support seat 8 is screwed and fixed to the workbench 9.

[0041] like Figure 1-4 As shown: when the upper rack 12 and the lower rack 15 move synchronously, the slider 16 thereon is slidably set inside the slide groove, which can limit and guide the upper rack 12 and the lower rack 15 during movement, thereby preventing the upper rack 12 and the lower rack 15 from tilting during movement, and preventing the upper rack 12, the lower rack 15 from disengaging from the gear 13.

[0042] As a preferred embodiment, an opening 91 is provided on the surface of the workbench 9 , and the opening 91 is a rectangular structure. A guide column 10 is fixedly installed inside the opening 91 , and the guide column 10 is inserted into a guide hole provided on the transmission column 11 .

[0043] The connecting column 5, the transmission column 11 and the upper rack 12 are a "U"-shaped structure, and the connecting column 5 and the upper rack 12 are arranged in parallel.

[0044] As a preferred embodiment, the left mold 2 and the right mold 3 are structures that move toward each other synchronously, and the left mold 2 and the right mold 3 are structures that move horizontally.

[0045] Sliding blocks are installed at the bottom of the left mold 2 and the right mold 3, and the left mold 2 and the right mold 3 are slidably arranged in the sliding groove opened on the surface of the workbench 9 through the sliding blocks at the bottom.

[0046] The limiting rail 7 and the supporting seat 8 are combined together to form an "L"-shaped structure, and the limiting rail 7, the supporting seat 8 and the working table 9 are combined together to form a "U"-shaped structure.

[0047] The above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept, or directly / indirectly used in other related technical fields are included in the patent protection scope of the utility model.

Claims

1. A differential pressure die set for manufacturing a wheel hub, comprising a top die (1), characterized in that: A mold core (4) is installed at the bottom of the top mold (1), and a left mold (2) is installed on one side of the mold core (4), and a right mold (3) is installed on the other side of the mold core (4), and the right mold (3) and the left mold (2) are driven on the surface of the workbench (9) by a driving component (18); The driving assembly (18) comprises a connecting column (5), and the end of the connecting column (5) is fixed to the left mold (2), and at the same time, a limit block (6) is fixedly installed on the upper left side of the connecting column (5), and a transmission column (11) is fixedly installed on the lower left side of the connecting column (5), the bottom of the transmission column (11) is fixedly connected to the upper rack (12), the bottom of the upper rack (12) is movably installed with a lower rack (15), and the lower rack (15) and the upper rack (12) are arranged in parallel, and at the same time, a gear (13) is movably installed between the lower rack (15) and the upper rack (12), and the rotating shaft of the gear (13) is fixedly connected to the output shaft of the stepping motor (14).

2. The differential pressure die set for wheel hub manufacturing according to claim 1, characterized in that: The left mold (2) and the right mold (3) are both driven by a gear (13) and a stepper motor (14), and the left mold (2) is driven by a connecting column (5), a transmission column (11) and an upper rack (12), and the bottom of the upper rack (12) is meshed with the gear (13).

3. The differential pressure die set for wheel hub manufacturing according to claim 2, characterized in that: The right mold (3) is driven by a connecting column (5), a transmission column (11) and a lower rack (15), and the surface of the lower rack (15) is meshedly connected with the gear (13).

4. The differential pressure die set for wheel hub manufacturing according to claim 1, characterized in that: The ends of the upper rack (12) and the lower rack (15) are fixedly mounted with a slide block (16), and a slide groove is provided on the bottom surface of the U-shaped frame (17), and a slide groove is provided at the bottom of the workbench (9). At the same time, the upper rack (12) and the lower rack (15) are slidably arranged inside the slide groove through the slide block (16) thereon, and the cross-sections of the slide block (16) and the slide groove are both dovetail-shaped.

5. The differential pressure die set for wheel hub manufacturing according to claim 1, characterized in that: The limiting block (6) at the end of the connecting column (5) is slidably arranged inside the limiting track (7), and the end of the limiting track (7) is screwed and fixed to the support seat (8), while the bottom of the support seat (8) is screwed and fixed to the workbench (9).

6. The differential pressure die set for wheel hub manufacturing according to claim 1, characterized in that: The surface of the workbench (9) is provided with an opening (91) which is a rectangular structure. A guide column (10) is fixedly installed inside the opening (91), and the guide column (10) is inserted into a guide hole provided on the transmission column (11).

7. The differential pressure die set for wheel hub manufacturing according to claim 1, characterized in that: The connecting column (5), the transmission column (11) and the upper rack (12) are of a "U"-shaped structure, and the connecting column (5) and the upper rack (12) are arranged in parallel.

8. The differential pressure die set for wheel hub manufacturing according to claim 1, characterized in that: The left mold (2) and the right mold (3) are structures that move synchronously towards each other, and the left mold (2) and the right mold (3) are structures that move horizontally.

9. The differential pressure die set for manufacturing a wheel hub according to claim 8, characterized in that: The bottom of the left mold (2) and the bottom of the right mold (3) are both installed with sliding blocks, and the left mold (2) and the right mold (3) are slidably arranged inside a sliding groove opened on the surface of the workbench (9) through the sliding blocks at the bottom.

10. The differential pressure die set for manufacturing a wheel hub according to claim 5, characterized in that: The limiting track (7) and the supporting seat (8) are combined together to form an "L"-shaped structure, and the limiting track (7), the supporting seat (8) and the working table (9) are combined together to form a "U"-shaped structure.

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