阅读说明：本技术 一种摇臂轴铆钉加工专用工装 (Special tooling for rocker shaft rivet processing ) 是由 王�华 魏涛 杨晨旭 姚继强 刘正军 于 2020-07-14 设计创作，主要内容包括：本发明提供一种摇臂轴铆钉加工专用工装,包括枪管；所述枪管的外侧固定安装有一个固定圆筒；所述固定圆筒的顶部通过螺纹嵌入安装有两个固定旋钮；所述固定圆筒的一侧底部固定连接有一块支撑板；所述支撑板顶部通过螺纹固定对称嵌入安装有共四个定位旋钮；四个所述定位旋钮的顶部内侧固定安装有一个定位套筒；所述定位旋钮的外侧还均固定设置有一个弹簧,且弹簧的底部和顶部分别与支撑板的顶部和定位套筒的底部固定连接；所述枪管的一侧还固定安装有一根摇臂轴。定位套筒的设置,有利于提高铆接质量,本装置采用辅助工具定位,杜绝了人为因素对质量的不确定影响,提高了产品质量的稳定性,降低了人工劳动强度,提高了生产效率。(The invention provides a special tool for processing a rocker shaft rivet, which comprises a gun barrel; a fixed cylinder is fixedly arranged on the outer side of the gun barrel; the top of the fixed cylinder is embedded with two fixed knobs through threads; the bottom of one side of the fixed cylinder is fixedly connected with a supporting plate; the top of the supporting plate is fixedly and symmetrically embedded with four positioning knobs in total through threads; a positioning sleeve is fixedly arranged on the inner side of the top of each of the four positioning knobs; the outer sides of the positioning knobs are respectively and fixedly provided with a spring, and the bottom and the top of each spring are respectively and fixedly connected with the top of the supporting plate and the bottom of the positioning sleeve; and a rocker arm shaft is fixedly arranged on one side of the gun barrel. The setting of locating sleeve is favorable to improving riveting quality, and this device adopts appurtenance location, has stopped the uncertain influence of human factor to the quality, has improved product quality's stability, has reduced artifical intensity of labour, has improved production efficiency.)

1. The utility model provides a special frock of rocking arm axle rivet processing which characterized in that: comprising a barrel (1); a fixed cylinder (2) is fixedly arranged on the outer side of the gun barrel (1); the top of the fixed cylinder (2) is embedded with two fixed knobs (3) through threads; the bottom of one side of the fixed cylinder (2) is fixedly connected with a supporting plate (4); the top of the supporting plate (4) is symmetrically embedded with four positioning knobs (6) through threads; a positioning sleeve (5) is fixedly arranged on the inner side of the top of each of the four positioning knobs (6); the outer sides of the positioning knobs (6) are respectively and fixedly provided with a spring (7), and the bottoms and the tops of the springs (7) are respectively and fixedly connected with the top of the supporting plate (4) and the bottom of the positioning sleeve (5); a rocker arm shaft (8) is fixedly arranged on one side of the gun barrel (1).

2. The special tooling for rocker shaft rivet processing of claim 1, wherein: five rubber strips which are arranged at equal intervals are fixedly arranged on the inner side of the bottom of the fixed cylinder (2), and a shell at the bottom of the gun barrel (1) can be in close contact with the rubber strips during installation.

3. The special tooling for rocker shaft rivet processing of claim 1, wherein: the bottom of the fixed knob (3) is fixedly provided with a circular rubber pad, the matched holes of the fixed knob (3) and the fixed cylinder (2) are corresponding threaded holes, and the rubber pad at the bottom of the fixed knob (3) can be in close contact with the top shell of the gun barrel (1) when the fixed cylinder (2) is installed.

4. The special tooling for rocker shaft rivet processing of claim 1, wherein: the hole that location knob (6) and backup pad (4) complex is the screw hole, and location knob (6) and locating sleeve (5) complex hole is for being greater than the round hole of location knob (6) diameter.

5. The special tooling for rocker shaft rivet processing of claim 1, wherein: the middle of the positioning sleeve (5) is of an arc-shaped concave structure, the positioning sleeve (5) can move up and down, and the positioning sleeve (5) is made of a nylon plate.

Technical Field

The invention belongs to the technical field of automobile part machining, and particularly relates to a special tool for machining a rocker arm shaft rivet.

Background

The valve rocker of the automobile engine is assembled on the cylinder cover, and consists of a rocker, a rocker shaft, a spring, a rocker shaft support and the like, the end part of the rocker shaft forms a through hole due to the limitation of a processing mode during production, and the end surface does not need to be provided with a hole in practical use, so that the hole is blocked and sealed by adopting an aluminum self-plugging rivet, and lubricating oil forms a loop and cannot leak.

Based on the above, the present inventors found that the following problems exist in use: at present, when the rocker shaft is subjected to loose core riveting, one hand is required to assist the rocker shaft, the rocker shaft is purely manually operated, two hands are required to be matched, when a handle of a rivet gun is pressed by the left hand, the right hand cannot ensure that a part is coaxial with the rivet gun, and the bad phenomena that the rivet is askew (the end face of the rivet is not completely attached to the end face of the part) and is not in place are easily caused.

In view of the above, research and improvement are made in view of the existing structure and defects, and a tool special for rocker arm shaft rivet processing is provided in order to achieve a more practical purpose.

Disclosure of Invention

In order to solve the technical problems, the invention provides a special tool for riveting a rocker arm shaft, which aims to solve the problems that a part and a rivet gun cannot be coaxial by the right hand and bad phenomena of askew rivet striking (the end face of a rivet is not completely attached to the end face of the part) and not in place are easily caused when the left hand presses the handle of the rivet gun because the rocker arm shaft needs to be assisted by one hand during the conventional loose core riveting of the rocker arm shaft, the operation is purely manual and the two hands are matched.

The invention relates to a special tool for processing a rocker shaft rivet, which is realized by the following specific technical means:

a special tool for processing a rocker shaft rivet comprises a barrel; a fixed cylinder is fixedly arranged on the outer side of the gun barrel; the top of the fixed cylinder is embedded with two fixed knobs through threads; the bottom of one side of the fixed cylinder is fixedly connected with a supporting plate; the top of the supporting plate is fixedly and symmetrically embedded with four positioning knobs in total through threads; a positioning sleeve is fixedly arranged on the inner side of the top of each of the four positioning knobs; the outer sides of the positioning knobs are respectively and fixedly provided with a spring, and the bottom and the top of each spring are respectively and fixedly connected with the top of the supporting plate and the bottom of the positioning sleeve; and a rocker arm shaft is fixedly arranged on one side of the gun barrel.

Furthermore, five rubber strips which are arranged at equal intervals are fixedly arranged on the inner side of the bottom of the fixed cylinder, and the shell at the bottom of the gun barrel can be in close contact with the rubber strips during installation.

Furthermore, a circular rubber pad is fixedly arranged at the bottom of each fixing knob, the holes formed by matching the fixing knobs with the fixing cylinders are corresponding threaded holes, and the rubber pads at the bottom of the fixing knobs can be in close contact with the top shell of the gun barrel when the fixing cylinders are installed.

Furthermore, the hole of the positioning knob matched with the supporting plate is a threaded hole, and the hole of the positioning knob matched with the positioning sleeve is a round hole with the diameter larger than that of the positioning knob.

Furthermore, the middle of the positioning sleeve is of an arc-shaped concave structure, the positioning sleeve can move up and down, and the positioning sleeve is made of a nylon plate.

Compared with the prior art, the invention has the following beneficial effects:

the setting of locating sleeve, be favorable to improving riveting quality, fixed drum is the rounding sleeve, locating sleeve's mid portion is the open sleeve of semicircle, arc structure in the middle of the locating sleeve can support it when placing the rocking arm axle, just so need not to hand, and rotatory four location knobs can also adjust locating sleeve's height, thereby can adapt to the rocking arm axle of different diameters, utilize and assist the utensil to guarantee that the axiality of rocking arm axle and riveter accords with technical requirement, thereby guarantee riveting quality, this device adopts appurtenance location, the uncertain influence of human factor to the quality has been stopped, product quality's stability has been improved, the intensity of manual labor has been reduced, and production efficiency is improved.

Drawings

FIG. 1 is a schematic side view of the present invention with a large diameter rocker shaft installed.

Fig. 2 is a schematic side view of the small diameter rocker shaft of the present invention after installation.

FIG. 3 is a schematic view of a bent axis side structure of the fixing cylinder of the present invention with a partial cut.

Fig. 4 is a schematic view of the bottom side structure of the fixed cylinder of the present invention with a partial cut.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a barrel; 2. a fixed cylinder; 3. fixing the knob; 4. a support plate; 5. a positioning sleeve; 6. positioning a knob; 7. a spring; 8. a rocker shaft.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.