1. The utility model provides a flexible large-scale tilting mechanism of multi-vehicle type automobile body location, is including driving actuating cylinder (11) and the dead cylinder of lock (12) that targets in place, its characterized in that still includes:

the overturning frame (17) is connected with the driving cylinder (11), and a vehicle body part positioning unit is arranged on the overturning frame (17);

the overturning supports (18) are supported at two ends of the overturning frame (17) and are connected with the in-place locking cylinder (12);

a first buffer (13) for buffering the roll-over frame (17) in a first position;

the first limiting piece (14) is used for limiting the overturning frame (17) at a first position;

a second buffer (15) for buffering the roll-over frame (17) in the second position;

the second limiting piece (16) is used for limiting the turnover frame (17) at a second position;

the turnover frame (17) is driven by the driving air cylinder (11) to be switched between a first position and a second position and is locked at the first position or the second position through the in-place locking air cylinder (12).

2. The multi-vehicle-type vehicle body positioning flexible large-scale turnover mechanism as claimed in claim 1, wherein said vehicle body part positioning unit comprises a plurality of threaded fixing blocks distributed on said turnover frame (17).

3. The multi-vehicle-type vehicle body positioning flexible large-scale turnover mechanism is characterized in that two in-place dead-lock cylinders (12) are arranged and are respectively connected with the turnover support (18) at one end correspondingly.

4. The multi-vehicle-type vehicle body positioning flexible large-scale turnover mechanism is characterized in that a positioning pin is connected to the in-place dead-locking cylinder (12), and a bushing matched with the positioning pin is arranged in the turnover support (18).

5. The multi-vehicle type vehicle body positioning flexible large-scale turnover mechanism of claim 1, characterized in that said turnover frame (17) is connected with said turnover support (18) through a shaft and a bearing.

6. The multi-vehicle type vehicle body positioning flexible large-scale turnover mechanism of claim 5, characterized in that the turnover support (18) is provided with an oil filling port (19) for filling bearing lubricating oil.

7. The multi-vehicle type vehicle body positioning flexible large-scale turnover mechanism according to claim 1, characterized in that the first buffer (13) comprises a first buffer plate (31) and a first buffer elastic column (32) matched with the first buffer plate (31), and the first buffer plate (31) is fixed on the turnover frame (17).

8. The multi-vehicle-type vehicle body positioning flexible large-scale turnover mechanism is characterized in that the first limiting part (14) comprises a first limiting block (41) and a second limiting block (42) matched with the first limiting block (41), and the first limiting block (41) is fixed on the turnover frame (17).

9. The multi-vehicle type vehicle body positioning flexible large-scale turnover mechanism according to claim 1, characterized in that said second buffer (15) comprises a second buffer plate (51) and a second buffer elastic column (52) matched with said second buffer plate (51), said second buffer plate (51) is fixed on a turnover frame (17).

10. The multi-vehicle-type vehicle body positioning flexible large-scale turnover mechanism is characterized in that the second limiting part (16) comprises a third limiting block (61) and a fourth limiting block (62) matched with the third limiting block (61), and the third limiting block (61) is fixed on the turnover frame (17).

Background

With the increasingly competitive automobile industry, automobile factories need to finish the marketing of new automobile models, and also need to shorten the early planning time and reduce the cost as much as possible under the condition of ensuring the quality. In order to achieve the object, each automobile factory has an increasing demand for flexibility of the production line. Nowadays, a platform multi-vehicle type is widely used in a host factory, but the aspects of flexible production, cost saving and space reduction need to be improved.

The existing welding fixture is mainly used for positioning a large automobile body part by using a large sliding mechanism, the structure of the welding fixture is shown in figure 1, the welding fixture comprises a driving cylinder 1, a guide rail 2, a frame 3, a sliding and opening in-place limit 4, a buffer 5, an in-place locking cylinder 6 and the like, and although the positioning function of different automobile types can be realized, the welding fixture occupies a large space, is low in manufacturing and processing cost and lacks of market competitiveness.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a flexible large-scale turnover mechanism for positioning a multi-vehicle body, which is cost-saving and simple and compact in structure.

The purpose of the invention can be realized by the following technical scheme:

the utility model provides a flexible large-scale tilting mechanism of multi-vehicle type automobile body location, is including driving actuating cylinder and the dead cylinder of lock that targets in place, still includes:

the overturning frame is connected with the driving cylinder and is provided with a vehicle body part positioning unit;

the overturning support is supported at two ends of the overturning frame and is connected with the in-place locking cylinder;

the first buffer is used for buffering the overturning frame at a first position;

the first limiting piece is used for limiting the overturning frame at a first position;

the second buffer is used for buffering the overturning frame at the second position;

the second limiting part is used for limiting the overturning frame at a second position;

the turnover frame is driven by the driving cylinder to be switched between a first position and a second position and is locked at the first position or the second position through the in-place locking cylinder.

Further, the vehicle body part positioning unit comprises a plurality of threaded fixing blocks distributed on the turnover frame.

Furthermore, the in-place locking cylinders are two and are respectively and correspondingly connected with the overturning support at one end.

Furthermore, a positioning pin is connected to the in-place locking cylinder, and a bushing matched with the positioning pin is arranged in the overturning support.

Further, the turnover frame is connected with the turnover support through a shaft and a bearing.

Furthermore, an oil filling port for filling bearing lubricating oil is arranged on the overturning support.

Furthermore, the first buffer comprises a first buffer plate and a first buffer elastic column matched with the first buffer plate, and the first buffer plate is fixed on the turnover frame.

Furthermore, the first limiting part comprises a first limiting block and a second limiting block matched with the first limiting block, and the first limiting block is fixed on the turnover frame.

Furthermore, the second buffer comprises a second buffer plate and a second buffer elastic column matched with the second buffer plate, and the second buffer plate is fixed on the turnover frame.

Further, the second limiting part comprises a third limiting part and a fourth limiting part matched with the third limiting part, and the third limiting part is fixed on the turnover frame.

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

1. the invention does not need a guide rail, saves space, has simple and compact structure and convenient installation, and can save purchase price cost and labor cost.

2. The invention adopts the matching mode of the positioning pin and the bush, can improve the positioning precision of the turnover mechanism and ensure the stability of the mechanism.

3. The invention adopts the turnover frame which can expand and contract, and can be suitable for occasions which are not used.

4. The invention is provided with the limiting blocks at different positions, and can effectively ensure the positioning precision of the mechanism and the service life of the driving cylinder.

Drawings

FIG. 1 is a schematic view of a positioning structure of an upper part of a conventional large-sized vehicle body part;

FIG. 2 is a schematic side view of the present invention in an operating state;

FIG. 3 is a schematic view of another side structure of the present invention in a working state;

FIG. 4 is a schematic structural view of the open state of the present invention;

FIG. 5 is a schematic view of a buffering stop according to the present invention;

in the figure, 1, a driving cylinder, 2, a guide rail, 3, a frame, 4, a sliding and opening in-place limit, 5, a buffer, 6, an in-place locking cylinder, 11, a driving cylinder, 12, an in-place locking cylinder, 13, a first buffer, 14, a first limit part, 15, a second buffer, 16, a second limit part, 17, a turnover frame, 18, a turnover support, 19, an oil injection port, 31, a first buffer plate, 32, a first buffer elastic column, 41, a first limit block, 42, a second limit block, 51, a second buffer plate, 52, a second buffer elastic column, 61, a third limit block, 62 and a fourth limit block.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

Referring to fig. 2 to 4, the present embodiment provides a flexible large-scale turnover mechanism for positioning a multi-vehicle-type vehicle body, which is used for solving the problem of effective turnover positioning of a large-scale vehicle body part in a welding fixture so as to improve welding quality. The turnover mechanism comprises a driving cylinder 11, an in-place locking cylinder 12, a turnover frame 17, a turnover support 18, a first buffer 13, a first limiting piece 14, a second buffer 15 and a second limiting piece 16, wherein the turnover frame 17 is connected with the driving cylinder 11, and a vehicle body piece positioning unit is arranged on the turnover frame 17; the overturning supports 18 are supported at two ends of the overturning frame 17 and are connected with the in-place locking cylinder 12; the first buffer 13 is used for buffering the turnover frame 17 at a first position, the first limiting part 14 is used for limiting the turnover frame 17 at the first position, the second buffer 15 is used for buffering the turnover frame 17 at a second position, and the second limiting part 16 is used for limiting the turnover frame 17 at the second position; the roll-over frame 17 is switched between the first position and the second position by the driving cylinder 11, and is locked at the first position or the second position by the in-position locking cylinder 12.

In this embodiment, the driving cylinder 11, the turning support 18, the first buffer 13, the first limiting member 14, the second buffer 15, and the second limiting member 16 are all fixed on the working table.

In this embodiment, the first position is an operating state, as shown in fig. 2 and 3, and the second position is an open state, as shown in fig. 4.

In this embodiment, the vehicle body part positioning unit includes a plurality of threaded fixing blocks distributed on the turnover frame 17, and the vehicle body part can be placed on the vehicle body part positioning unit manually or by a robot, and then the turnover mechanism is started to perform positioning and turnover of the vehicle body part.

In the preferred embodiment, two in-place lock cylinders 12 are provided, each connected to a respective roll-over support 18 at one end.

In a preferred embodiment, the in-place locking cylinder 12 is connected with a positioning pin, and a bushing matched with the positioning pin is arranged in the overturning support 18, so that the positioning precision of the overturning mechanism can be improved, and the stability of the mechanism can be ensured.

The roll-over frame 17 is connected to the roll-over stand 18 by means of a shaft and a bearing, by means of which the friction coefficient during roll-over opening of the roll-over frame 7 can be reduced. The overturning support 18 is provided with an oil filling port 19 for filling bearing lubricating oil.

As shown in fig. 5, the first buffer 13 includes a first buffer plate 31 and a first buffer elastic column 32 matching with the first buffer plate 31, and the first buffer plate 31 is fixed to the roll frame 17. The first limiting member 14 includes a first limiting member 41 and a second limiting member 42 matched with the first limiting member 41, and the first limiting member 41 is fixed on the turnover frame 17. The second buffer 15 includes a second buffer plate 51 and a second buffer elastic column 52 matched with the second buffer plate 51, and the second buffer plate 51 is fixed on the flip frame 17. The second limiting member 16 includes a third limiting member 61 and a fourth limiting member 62 matched with the third limiting member 61, and the third limiting member 61 is fixed on the turnover frame 17. The overturning opening position is folded by the limiting block to limit, buffer and deadly locked by the cylinder, so that the positioning precision of the mechanism and the service life of the driving cylinder can be effectively guaranteed.

The foregoing detailed description of the preferred embodiments of the invention has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.