Magnesium alloy steering wheel pressure riveting tool

Abstract

The utility model provides a pressing and riveting tool for a magnesium alloy steering wheel, which comprises an upper pressing plate and a lower supporting plate which are correspondingly arranged up and down; at least four upper guide columns are arranged on the lower surface of the upper pressing plate, and at least four lower guide columns are correspondingly arranged on the upper surface of the lower supporting plate. At least four upper pressing columns are further arranged on the lower surface of the upper pressing plate, and at least four lower supporting columns are correspondingly arranged on the lower supporting plate; a lower support pillar is fixed on the lower support pillar; the position of the lower jacking column is opposite to the position of a rivet hole of a steering wheel workpiece, and the upper pressing column presses the copper rivet into the rivet hole of the steering wheel workpiece along with downward movement of the upper pressing plate. The copper rivet can be riveted successfully at a time, the working efficiency and the yield are improved, and the cost of the magnesium alloy steering wheel is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to tooling technical field, in particular to a magnesium alloy steering wheel riveting tool. BACKGROUND

[0002] With the rapid development of automobile industry, electric, hybrid, oil and gas vehicles each show their unique skills, the acceleration performance of the automobile is faster and faster, the appearance, modeling is more and more beautiful, the internal decoration, facility is more and more complex and various, and the sense of technology is higher and higher. Steering wheel as an essential component in the automobile is also changing. Magnesium alloy as the lightest structural material has low density, high specific strength, high damping characteristics, high shock absorption and unique performance of noise reduction, and has the characteristics of good casting forming, good machining and surface decoration performance and easy recycling in the steering wheel of the automobile industry. Therefore, the magnesium alloy material is applied to the automobile steering wheel skeleton, and the traditional steel, aluminum alloy and other materials are replaced, which has the important significance of energy saving and emission reduction and carbon neutralization.

[0003] The magnesium alloy steering wheel structure is complex, therefore mainly adopts the method of die casting forming, which contains several steering wheel horn contacts, and the horn contacts control the circuit of the automobile horn. Specifically, when the driver presses the horn button on the steering wheel, the circuit is closed, allowing current to flow from the positive terminal of the battery, through the horn, and back to the negative terminal of the battery, so that the horn sounds. In this process, the design of the contact ensures the correct flow of current and realizes the control function of the horn. The design of the contact follows the characteristics of the automobile circuit, that is, direct current, low voltage, single line system and negative pole grounding. In the single line system, the positive pole is connected through the wire harness, and the negative pole is connected through the metal parts such as the vehicle body to serve as grounding. Therefore, the horn button on the steering wheel is not used for grounding, but as a switch to control the on-off of the current, so as to realize the on-demand sounding of the horn. If the height of the horn contact rivet is inconsistent, the contact gap will also be different, and the driver's light and heavy feeling will be inconsistent, thereby affecting the evaluation of the operation of the automobile. CONTENT OF THE UTILITY MODEL

[0004] The utility model provides a magnesium alloy steering wheel's riveting tool, can rivet copper rivet successfully one time, improves work efficiency and yield, reduces magnesium alloy steering wheel cost.

[0005] The specific technical scheme is:

[0006] A magnesium alloy steering wheel riveting tool, comprising an upper pressing plate and a lower supporting plate, the upper pressing plate and the lower supporting plate are arranged in a corresponding manner;

[0007] The lower surface of the upper pressing plate is provided with at least four upper guide columns, and the upper surface of the lower supporting plate is correspondingly provided with at least four lower guide columns;

[0008] The lower surface of the upper pressing plate is further provided with at least four upper pressing columns, and the lower supporting plate is correspondingly provided with at least four lower supporting columns; the lower supporting columns are fixed with lower jacks.

[0009] The position and direction of the lower jacks are opposite to the rivet hole position of the steering wheel workpiece, and when the upper pressing plate moves downward, the upper pressing columns press the copper rivets into the rivet holes of the steering wheel workpiece.

[0010] The upper pressing plate is threadedly connected with a movable plane of an external pressing machine.

[0011] The upper guide column is a stepped shaft structure, and when the upper pressing plate descends, the shaft shoulder of the upper guide column is in contact with the end surface of the lower guide column to limit the position, so that the four copper rivets are located on the same horizontal plane.

[0012] The lower supporting plate is threadedly connected with a fixed plane of an external pressing machine. DETAILED DESCRIPTION

[0013] Figure 1 It is a local display drawing of the magnesium alloy steering wheel tool of the utility model;

[0014] Figure 2 It is a local display drawing of the magnesium alloy steering wheel tool of the utility model;

[0015] Figure 3 It is a local sectional view before pressing rivets of the utility model;

[0016] Figure 4 It is a local sectional view after pressing rivets of the utility model;

[0017] 1 upper pressing plate; 2 upper guide column; 3 steering wheel workpiece; 4 copper rivet; 5 lower guide column; 6 lower supporting column; 7 lower supporting plate; 8 upper pressing column; 9 lower jack. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0019] In the description of the utility model, it is necessary to explain that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "back" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and are not indicative or suggestive of the devices or elements indicated having a specific orientation, being constructed and operated in a specific orientation. The terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0020] Please refer to Figure 1 And the soil 2, the device is a magnesium alloy steering wheel pressure riveting tool, including upper pressing plate 1, lower support plate 7, upper pressing plate 1, lower support plate 7 is arranged in the upper and lower corresponding;

[0021] The lower surface of the upper pressing plate 1 is provided with at least four upper guide columns 2, and the upper surface of the lower support plate 7 is correspondingly provided with at least four lower guide columns 5;

[0022] The lower surface of the upper pressing plate 1 is further provided with at least four upper pressing columns 8, and the lower support plate 7 is correspondingly provided with at least four lower support columns 6; the lower support column 6 is fixed with a lower top column 9;

[0023] The position and direction of the lower top column 9 are opposite to the rivet hole position of the steering wheel workpiece 3, and the copper rivet 4 is pressed into the rivet hole of the steering wheel workpiece 3 along with the downward movement of the upper pressing plate 1.

[0024] The steering wheel workpiece 3 and the copper rivet 4 are used as external parts, and need to be taken at any time during continuous operation.

[0025] The upper pressing plate 1 is connected with the external pressing machine movable plane through threads, which is convenient for workpiece disassembly and assembly.

[0026] The upper guide column 2 is connected with the upper pressing plate 1 through threads, which is used to ensure that the upper pressing plate 1 is parallel to the lower support plate 7.

[0027] The upper guide column 2 is a stepped shaft structure, and when working, the shaft shoulder of the upper guide column 2 is in contact with the end surface of the lower guide column 5 for limiting, which is used to ensure that the four copper rivets 4 are located on the same horizontal plane.

[0028] The upper pressing column 8 is connected with the upper pressing plate 1 through threads, and when working, the copper rivet 4 is pressed into the rivet hole of the steering wheel workpiece 3 along with the downward movement of the upper pressing plate 1.

[0029] The lower support plate 7 is fixedly connected with the external press machine through a plane screw thread, and is not disassembled during operation; when applied to different batches and sizes of steering wheel workpieces, different types of press riveting tools can be selected and disassembled.

[0030] The lower support column 6 is threadedly connected with the lower support plate 7, and mainly functions to support the steering wheel workpiece 3 and install the lower top column 9.

[0031] The lower top column 9 is interference-fitted or welded with the lower support column 6 to prevent deviation, and aims to expand the copper rivet and fix it on the magnesium alloy steering wheel.

[0032] Working principle and steps:

[0033] As Figure 3 and Figure 4 The magnesium alloy steering wheel workpiece 3 is placed on the lower support plate 7, four copper rivets 4 are respectively placed in the rivet holes of the steering wheel workpiece 3, the pneumatic press machine is used to lower the upper pressing plate 1 until the shaft shoulder of the upper guide column 2 is in contact with the end surface of the lower guide column 5 to limit, at this time, the copper rivet 4 is completed inlaying, the press machine is reset, the steering wheel workpiece 3 is taken out, and one press riveting process is completed. Repeat the above actions for continuous production.

Claims

1. A magnesium alloy steering wheel riveting fixture, characterized in that, It comprises an upper pressing plate (1) and a lower supporting plate (7), and the upper pressing plate (1) and the lower supporting plate (7) are arranged in correspondence with each other in up-down direction. The lower surface of the upper pressing plate (1) is provided with at least four upper guide columns (2), and the upper surface of the lower supporting plate (7) is correspondingly provided with at least four lower guide columns (5). The lower surface of the upper pressing plate (1) is further provided with at least four upper pressing columns (8), and the lower supporting plate (7) is correspondingly provided with at least four lower supporting columns (6); the lower supporting columns (6) are fixed with lower top columns (9). The position and direction of the lower top column (9) are opposite to the rivet hole position of the workpiece (3), and the upper pressing column (8) will press the copper rivet (4) into the rivet hole of the workpiece (3) when the upper pressing plate (1) is lowered; the lower top column (9) is in interference fit or welding with the lower supporting column (6), which is used for supporting the copper rivet and fixing it on the magnesium alloy steering wheel; The upper guide column (2) is a stepped shaft structure, and when working, the shaft shoulder of the upper guide column (2) is in contact with the end face of the lower guide column (5) to limit the position, so that the four copper rivets (4) are located on the same horizontal plane.

2. The magnesium alloy steering wheel press-riveting tool according to claim 1, wherein The upper pressing plate (1) is connected with the movable plane of the external press machine in thread.

3. The magnesium alloy steering wheel press-riveting tool according to claim 1, wherein The lower supporting plate (7) is connected with the fixed plane of the external press machine in thread.

Images