阅读说明：本技术 汽车动力总成上线的定位装置 (Positioning device for automobile power assembly line ) 是由 李金金 郭园园 于 2020-07-28 设计创作，主要内容包括：本发明的目的是提供一种能够保证定位精度且安全系数高的汽车动力总成上线的定位装置,包括固定在AGV小车上的固定座,固定座上设置有弹性支撑单元,弹性支撑单元的下端与固定座连接、上端连接有安装座,安装座上端设置有定位销,弹性支撑单元提供弹力驱使定位销向上运动并置入车身定位孔内构成定位配合。上述方案中,使用时固定座通过螺丝螺母与AGV小车固定连接,确定相对位置,弹性支撑单元处在最大行程位置处,将动力总成安放到AGV小车上,AGV小车移动到车身吊具的下方,定位销插入车身定位孔内实现定位,此时AGV小车托举上线,将AGV小车上的动力总成与车身连接后,AGV小车连同该定位装置一起下降。(The invention aims to provide a positioning device for an automobile power assembly on-line, which can ensure positioning accuracy and has high safety factor, and the positioning device comprises a fixed seat fixed on an AGV trolley, wherein an elastic supporting unit is arranged on the fixed seat, the lower end of the elastic supporting unit is connected with the fixed seat, the upper end of the elastic supporting unit is connected with a mounting seat, a positioning pin is arranged at the upper end of the mounting seat, and the elastic supporting unit provides elasticity to drive the positioning pin to move upwards and place into a positioning hole of an automobile body to form positioning fit. In the above scheme, during the use, the fixing base passes through screw nut and AGV dolly fixed connection, confirms relative position, and the elastic support unit department is in maximum stroke position department, lays the power assembly on the AGV dolly, and the AGV dolly moves the below of automobile body hoist, and the locating pin inserts the realization location in the automobile body locating hole, and the AGV dolly lifts the line this moment, with power assembly and the automobile body connection back on the AGV dolly, the AGV dolly descends together with this positioner.)

1. The utility model provides a positioner of automobile power assembly line which characterized in that: including fixing base (10) on the AGV dolly, be provided with the elastic support unit on fixing base (10), the lower extreme and fixing base (10) of elastic support unit are connected, the upper end is connected with mount pad (20), mount pad (20) upper end is provided with locating pin (21), and the elastic support unit provides elasticity and orders about locating pin (21) upward movement and imbeds the interior constitution location fit of automobile body locating hole.

2. The positioning device for the line of the automobile power assembly according to claim 1, characterized in that: the elastic supporting unit is an air spring (30), a cylinder body of the air spring (30) is fixed on the fixing seat (10), the piston rod is arranged in a protruding mode upwards, and a rod core of the piston rod is arranged in the vertical direction.

3. The positioning device for the line of the automobile power assembly according to claim 1, characterized in that: a guide shaft rod (41) is further arranged between the fixed seat (10) and the mounting seat (20), the shaft core of the guide shaft rod (41) is arranged in the vertical direction, the upper end of the guide shaft rod (41) is fixedly connected with the lower plate surface of the mounting seat (20), and the lower end of the guide shaft rod is inserted into a linear bearing (42) arranged on the fixed seat (10) to form sliding fit.

4. The positioning device for the line on the automobile power assembly according to claim 3, characterized in that: a vertical plate (11) is arranged on the fixed seat (10), a locking pin (12) penetrates through the vertical plate (11) and then abuts against the guide shaft lever (41), and a pin hole is formed in the upper lever section of the guide shaft lever (41).

5. The positioning device for the line on the automobile power assembly according to claim 4, characterized in that: the number of the guide shaft rods (41) is 1 on each of two sides of the gas spring (30), and the locking pin (12) is abutted against one of the guide shaft rods (41) to form locking fit.

6. The positioning device for the line on the automobile power assembly according to claim 1, characterized in that: the side of the mounting seat (20) is movably connected with a turnover pin (22).

7. The positioning device for the line on the automobile power assembly according to claim 2, characterized in that: the outside of the cylinder body of the air spring (30) below the fixed seat (10) is covered with a protective sleeve (31).

Technical Field

The invention relates to the technical field of automobile manufacturing and assembling, in particular to a positioning device for an automobile power assembly line.

Background

The automobile power assembly comprises an engine, a gearbox, a driving shaft, a differential mechanism and a clutch, in the prior art, the power assembly on-line tool adopts an AGV trolley to drive the power assembly on a tray clamp to move to the position below an automobile body, then the AGV trolley rises, the position of the AGV trolley is continuously adjusted to realize matching and centering with the automobile body, a frame is assembled, and the on-line work of the power assembly is finally completed. However, in the process of automobile assembly, the power assembly and accessories such as the auxiliary frame are integrally arranged on the line and have more connection points with the automobile body, so that the accurate alignment of the connection points cannot be guaranteed, and in the adjustment process, the problem of position deviation of the power assembly is easily caused, so that the engine bottom shell is collided, and the power assembly is damaged.

Disclosure of Invention

The invention aims to provide a positioning device for an automobile power assembly on-line, which can ensure positioning accuracy and has high safety factor.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a positioner on automobile power assembly line, is including fixing the fixing base on the AGV dolly, is provided with elastic support unit on the fixing base, and elastic support unit's lower extreme is connected with the fixing base, the upper end is connected with the mount pad, and the mount pad upper end is provided with the locating pin, and elastic support unit provides elasticity and orders about the locating pin upward movement and imbeds the interior constitution location fit of automobile body locating hole.

In the above scheme, during the use, the fixing base passes through screw nut and AGV dolly fixed connection, confirms relative position, and the elastic support unit department is in maximum stroke position department, lays the power assembly on the AGV dolly, and the AGV dolly moves the below of automobile body hoist, and the locating pin inserts the realization location in the automobile body locating hole, and the AGV dolly lifts the line this moment, with power assembly and the automobile body connection back on the AGV dolly, the AGV dolly descends together with this positioner.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Detailed Description

As shown in fig. 1, the positioning device for the automobile power assembly line loading comprises a fixed seat 10 fixed on an AGV trolley, wherein an elastic supporting unit is arranged on the fixed seat 10, the lower end of the elastic supporting unit is connected with the fixed seat 10, the upper end of the elastic supporting unit is connected with a mounting seat 20, a positioning pin 21 is arranged at the upper end of the mounting seat 20, and the elastic supporting unit provides elastic force to drive the positioning pin 21 to move upwards and place into a positioning hole of an automobile body to form positioning fit. When the automatic lifting device is used, the fixing seat 10 is fixedly connected with an AGV through a screw nut, the relative position is determined, the elastic supporting unit is located at the maximum stroke position, namely the positioning pin 21 is located at the highest position, the power assembly is arranged on the AGV, the uppermost end of the power assembly is lower than the height of the positioning pin 21, so that the positioning pin 21 is firstly contacted with an automobile body, the power assembly is prevented from colliding with the AGV, the AGV moves to the lower part of an automobile body lifting appliance, the positioning pin is inserted into the positioning hole of the automobile body to realize positioning, the AGV lifts the AGV to reach the line, after the power assembly on the AGV is connected with the automobile body, the AGV descends together with the positioning device to return to wait for the next time of the line-.

Preferably, the elastic support unit is a gas spring 30, a cylinder body of the gas spring 30 is fixed on the fixing seat 10, a piston rod is arranged in an upward protruding manner, and a rod core of the piston rod is arranged in the vertical direction. The stroke of the piston rod of the gas spring 30 is the largest in a natural state, the positioning pin 21 at the end part of the piston rod is driven to reach a high position to be positioned with a positioning hole of the vehicle body, and the positioning pin 21 is pressed in the process that the power assembly is lifted to be on line, so that the piston rod is compressed to the shortest stroke, and the power assembly is connected with the vehicle body.

In order to ensure that the positioning pin 21 makes linear motion in the vertical direction, a guide shaft rod 41 is further disposed between the fixed seat 10 and the mounting seat 20, an axial center of the guide shaft rod 41 is disposed in the vertical direction, an upper end of the guide shaft rod 41 is fixedly connected with a lower plate surface of the mounting seat 20, and a lower end of the guide shaft rod 41 is inserted into a linear bearing 42 disposed on the fixed seat 10 to form a sliding fit. The guiding action of the guide shaft rod 41 ensures that the piston rod of the gas spring 30 makes a linear motion, i.e., the positioning pin 21 makes a linear motion, thereby ensuring the accuracy of the fit of the positioning pin 21 with the vehicle body positioning hole.

The fixing seat 10 is provided with a vertical plate 11, the locking pin 12 passes through the vertical plate 11 and then abuts against the guide shaft lever 41, and a pin hole is formed in an upper lever section of the guide shaft lever 41. When the piston rod is compressed to the shortest stroke, the locking pin 12 is embedded into the pin hole to lock the guide shaft rod 41 and the air spring 30, so that the piston rod of the air spring 30 cannot move upwards to contact with the positioning hole in the vehicle body in the process that the AGV trolley descends and returns together with the positioning device; after the AGV cart together with the positioning device is lowered back to the proper position, the locking stop pin 12 is pulled again, and the piston rod of the spring 30 is returned to the maximum stroke position to wait for the next power assembly on-line task.

In order to further improve the smoothness of the movement of the piston rod, 1 guide shaft rod 41 is respectively arranged on two sides of the gas spring 30, and the locking pin 12 is abutted against one guide shaft rod 41 to form locking fit.

The side of the mounting seat 20 is movably connected with a turnover pin 22, and the specification of the turnover pin 22 can be switched according to different vehicle types so as to be suitable for positioning of various vehicle types.

Further, the outside of the cylinder body of the gas spring 30 below the fixed seat 10 is covered with a protective sleeve 31 to prevent sundries from entering.