CN205043011U - Car metal fuel tank flanging device that punches a hole - Google Patents

Abstract

The utility model relates to the field of automobile processing equipment, in particular to a punching and flanging device for an automobile metal fuel tank. The technical problem to be solved is to provide an automobile metal fuel tank punching and flanging device which can effectively reduce the size error of the hole position and greatly improve the processing efficiency. A punching and flanging device for a metal fuel tank of an automobile, including a fixed plate, on which a lower wedge and an upper wedge matched with each other are arranged on the fixed plate, and the movement direction of the lower wedge and the upper wedge is They are perpendicular to each other, wherein the upper inclined wedge is connected with the die handle, and the lower inclined wedge is connected with the punching punch and the punching and flanging die. The concept of the utility model is based on practice, and the changes to the traditional equipment are small, and the hole position size error can be effectively reduced after the improvement, and has broad market promotion prospects. The utility model is especially suitable for the punching and flanging process of automobile metal fuel tanks .

Description

Automobile metal fuel tank punching and flanging device

technical field

The utility model relates to the field of automobile processing equipment, in particular to a punching and flanging device for an automobile metal fuel tank.

Background technique

At present, the major domestic automotive metal fuel tank manufacturers use the up and down vertical movement of the punching machine to punch and flang the punching and flanging dies for the oil inlet pipe or vent pipe hole on the side profile of the fuel tank, and this vertical The movement mode leads to the suspension positioning of the fuel tank on the mold. Considering that the current production of metal fuel tanks is developing towards automatic production, the mold structure has the following disadvantages: 1. The suspension positioning mode causes the fuel tank to be punched and flanged due to fuel The hole position size error is caused by the gravity of the tank itself; 2. The suspension positioning method needs the assistance of the operator during operation. The auxiliary operation not only makes the operation complicated, but also threatens the personal safety of the operator, and the safety factor is not high; 3. Cannot use fuel oil The positioning of the installation hole of the fuel tank leads to low accuracy of welding the oil inlet pipe or vent pipe of the fuel tank, or poor welding quality, which cannot meet the needs of automated production.

Utility model content

The technical problem to be solved by the utility model is to provide an automobile metal fuel tank punching and flanging device which can effectively reduce the size error of the hole position and greatly improve the processing efficiency.

The technical scheme adopted by the utility model to solve the technical problem is: the punching and flanging device of the metal fuel tank of the automobile, including a fixed plate, and the fixed plate is provided with a lower inclined wedge and an upper inclined wedge that cooperate with each other. The moving directions of the lower wedge and the upper wedge are perpendicular to each other, wherein the upper wedge is connected with the die handle, and the lower wedge is connected with the punching punch and the punching flanging die.

Further, the upper inclined wedge is connected with the die shank through the upper die base.

Further, a lower mold base is included, and the fixing plate is fixedly arranged on the lower mold base.

Further, it includes a guide block arranged on the fixing plate, the guide block is in close contact with the side of the upper oblique wedge and is used to guide the movement direction of the upper oblique wedge.

The beneficial effect of the utility model is: in actual use, the driving force from the machine tool is transmitted to the upper inclined wedge through the mold handle. At this time, the upper inclined wedge moves vertically up and down, but the With the conversion of the slanting wedge, the above-mentioned vertical movement is smoothly transformed into a horizontal left-right movement. At this time, the downward slanting wedge drives the punching punch and the punching and flanging die to turn over the fuel tank hole. Edge craft. The concept of the utility model is based on practice, and the changes to the traditional equipment are small, and the hole position size error can be effectively reduced after the improvement, and has broad market promotion prospects. The utility model is especially suitable for the punching and flanging process of automobile metal fuel tanks .

Description of drawings

Fig. 1 is the structural representation of the utility model.

The marks in the figure are: lower die base 1, fixed plate 2, punching and flanging die 3, punching punch 4, lower inclined wedge 5, upper inclined wedge 6, guide block 7, upper die base 8, mold handle 9 .

detailed description

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, the automobile metal fuel tank punching flanging device of the present utility model comprises a fixed plate 2, and said fixed plate 2 is provided with a lower inclined wedge 5 and an upper inclined wedge 6 which are matched with each other. The moving directions of the lower slanting wedge 5 and the upper slanting wedge 6 are perpendicular to each other, wherein the upper slanting wedge 6 is connected with the die handle 9, and the lower slanting wedge 5 is connected with the punching punch 4 and the punching flanging die 3.

Through the analysis of the technology and mold structure adopted by the metal fuel tank oil inlet pipe or vent pipe punching flanging die, combined with the actual situation, the utility model finds a mechanism to convert the vertical movement of the punching machine into the left and right movement of the horizontal direction, so that The positioning mode of the fuel tank on the punching and flanging die of the oil inlet pipe or the vent pipe is changed from the hanging positioning mode when the punch press moves vertically up and down to the horizontal positioning positioning mode during the horizontal movement. Existing punching and flanging dies for metal fuel tank oil inlet pipes and vent pipes are positioned by hanging the fuel tank cap for punching and flanging. This positioning method has low positioning accuracy due to the weight of the parts itself and difficult operation. The punching machine moves vertically up and down. When the oil inlet pipe and vent pipe hole of the metal fuel tank are on the side wall, the fuel tank can only be positioned by hanging. In order to solve the problem of low positioning accuracy of the hanging type, a method that can The structure of changing the vertical movement up and down to the horizontal movement forward and backward, so the principle of the wedge mechanism is adopted to change the vertical movement up and down into the horizontal movement forward and backward, which meets the design requirements. Secondly, the punching and flanging accuracy of the fuel inlet pipe and vent pipe of the metal fuel tank is mainly guaranteed by the positioning of the fuel tank. At present, the fuel inlet pipe and vent pipe of the production line are welded by robots, which affects the accuracy of the fuel inlet pipe and vent pipe holes. more demanding. The existing suspension positioning is limited by the fuel tank profile, which can no longer meet the welding accuracy requirements. A reasonable positioning method needs to change the existing suspension positioning method into a horizontal placement method, which is also in line with the wedge structure principle. Application in punching and flanging dies for oil inlet pipes and vent pipes. In the production process of metal fuel tanks, installation holes are used for positioning when welding oil inlet pipes and vent pipes. Accuracy of punching and flanging of fuel tank inlet pipe and breather pipe.

In order to allow the power of the die handle 9 to be transmitted to the upper inclined wedge 6 more smoothly, the upper inclined wedge 6 can be selected to be connected with the die handle 9 through the upper die holder 8. As shown in Figure 1, the upper die holder 8 can be The power of the mold shank 9 is transmitted to the upper wedge 6 smoothly all the time, so as to ensure the smooth transmission. Certainly, in order to further fix the fixing plate 2 well, a lower mold base 1 can be added, and the fixing plate 2 is fixedly arranged on the lower mold base 1 . Including the guide block 7 arranged on the fixed plate 2, the guide block 7 is close to the side of the upper oblique wedge 6 and used to guide the movement direction of the upper oblique wedge 6, as shown in Figure 1, the guide block 7 can Ensure the smoothness of the whole transmission.

After the improvement of the utility model, the precision requirements of the metal fuel tank oil inlet pipe and the vent pipe in the automatic welding manufacturing can be well guaranteed, and the production pass rate of the common vertical movement mold is increased from 95% to more than 99.5%. In the manufacturing process of the metal fuel tank, the cost of scrapping and rework is reduced by 0.3 yuan/set.

Claims (4)

1. Automobile metal fuel tank punching and flanging device, including a fixed plate (2), characterized in that: the fixed plate (2) is provided with a lower wedge (5) and an upper wedge that cooperate with each other (6), the moving directions of the lower wedge (5) and the upper wedge (6) are perpendicular to each other, wherein the upper wedge (6) is connected with the mold shank (9), and the lower wedge (5) It is connected with the punch punch (4) and the punch flanging die (3). 2. The automobile metal fuel tank punching and flanging device according to claim 1, characterized in that: the upper inclined wedge (6) is connected with the die handle (9) through the upper die base (8). 3. The automobile metal fuel tank punching and flanging device according to claim 1, characterized in that: it comprises a lower mold base (1), and the fixing plate (2) is fixedly arranged on the lower mold base (1) . 4. The automobile metal fuel tank punching and flanging device as claimed in claim 1, characterized in that: it comprises a guide block (7) arranged on the fixed plate (2), the guide block (7) and the upper wedge The side of the block (6) is close to and used to guide the direction of movement of the upper wedge block (6).