CN106312405A - Supporting non-polar mechanism for passive trolley - Google Patents

Abstract

The invention discloses a supporting non-polar mechanism for a passive trolley. The supporting non-polar mechanism for the passive trolley comprises two linear supporting guide rails which are vertically arranged in a spaced manner. A sliding rod and a brake mechanism matched with the sliding rod are arranged on each of the two linear supporting guide rails. The top ends of the two sliding rods are connected to beam angle iron. Insulating reference supporting bodies are mounted at the two ends of the beam angle iron. The two sliding rods are further provided with external power joints for providing a power source for adjusting the vehicle height direction of the insulating reference supporting bodies. According to the supporting non-polar mechanism for the passive trolley, reference supports of vehicle-type workpieces can be adjusted in a non-polar manner in the vehicle height direction; and the power source of a switching mechanism is independently arranged outside the passive trolley, so that the weight of the multi-vehicle passive trolley is reduced, the passive trolley is lighter and simpler, and electric leakage during welding can be avoided through the insulating reference supporting bodies in contact with the vehicle-type workpieces.

Description

The supporting stepless mechanism of the passive trolley

technical field

The invention relates to the technical field of auxiliary equipment for automobile manufacturing, in particular to a supporting stepless mechanism for a passive trolley applied on an automobile welding line.

Background technique

The development trend of the world's automobiles is from mass production to multi-variety and small-batch production. In order to meet the extensive and diverse needs of automobile consumers and adapt to the fierce competition in the automobile market, major automobile manufacturers in the world continue to shorten the model change cycle. To speed up the update of vehicle types, the function of modern automobile welding lines is gradually becoming more flexible.

The single-model automatic production line is a welding production line designed for one model. When there are large differences in multiple models, it cannot be operated on the same production line. The multi-model automatic hybrid production line is basically the same as the single-model automatic production line. The production line adopts multi-model mixed line production, generally 1 to 3 models. For the multi-model automatic mixed production line, the design of the multi-model reference support in the trolley on the automobile welding line is particularly important. The trolleys on the existing automobile welding line are generally single-model active trolleys. This kind of trolley has a complex structure, heavy weight, high manufacturing costs and maintenance costs, and it is impossible to switch between multiple models.

Contents of the invention

The invention provides a supporting stepless mechanism of a passive trolley which has a simple structure and can steplessly adjust the reference support of a vehicle model workpiece in the direction of the height of the vehicle.

A further purpose is that the power source of the switching mechanism can be independently arranged on the outside of the passive trolley, so as to reduce the weight of the passive trolley of multiple models and make the trolley lighter and simpler.

The present invention is achieved through the following technical solutions:

The supporting stepless mechanism of the passive trolley is characterized in that it includes two linear support guide rails arranged vertically at intervals, and slide bars and matching braking mechanisms are installed on the two linear support guide rails. The top end is connected to a crossbeam angle iron, and the two ends of the crossbeam angle iron are installed with insulating reference supports, and the two sliding rods are also provided with external power interfaces for providing a power source for adjusting the vehicle height direction of the insulating reference supports .

A reference stopper, an overtravel stopper and a scale for confirming the displacement of the insulating reference support are also provided on the linear support guide rail.

The insulating reference support includes an insulating plate fixedly connected with the beam angle iron, an adjusting spacer, a supporting block, and an insulating sleeve placed on the supporting block, which are sequentially connected from bottom to top.

Advantages of the present invention: 1. The present invention is applicable to multi-vehicle passive trolleys, and can carry out stepless adjustment of the reference support of workpieces of various types in the vehicle height direction. 2. Both the power source of the present invention and the power source of the switching mechanism can be independently arranged outside the passive trolley, reducing the weight of the multi-model passive trolley, making the trolley lighter and simpler. 3. To prevent leakage, the insulating reference support body in contact with the vehicle workpiece can avoid welding leakage.

Description of drawings

Fig. 1 is the general assembly diagram of a kind of multi-vehicle passive trolley;

Fig. 2 is a structural diagram of the supporting stepless mechanism of the passive trolley of the present invention.

detailed description

As shown in Figure 1, a passive trolley 1 suitable for multiple models, referred to as passive trolley, includes a multi-model passive trolley platform 101 with front and rear parts that can walk along the track, referred to as passive trolley Platform, and the fixed main reference structure 301 of the model workpiece installed on the multi-model passive trolley platform 101. The multi-vehicle passive trolley platform 101 has a height position at the front, two positions of height and length in the middle, and three positions of length, width and height at the rear, which together are used to determine the vehicle width direction of the passive trolley 1 and vehicle height direction, there are two left and right positions in the middle to determine the vehicle length direction of the passive trolley 1, and the multi-vehicle passive trolley platform 101 is also provided with an interface that matches the device that provides external power, so as to realize the The passive trolley does not need an external power source during the automatic movement process, and only needs to be connected to an external power source when unlocking and picking and placing workpieces. Since the external power device is separated from the passive trolley 1, the structure of the passive trolley 1 is simpler and lighter.

The passive trolley 1 suitable for multiple vehicle types also includes a three-way infinite reference support mechanism 501 (that is, a three-way infinite support mechanism) arranged on the base surface of the multi-vehicle passive trolley platform 101, and/or a two-way infinite reference support mechanism. The supporting mechanism 401 (that is, the bidirectional stepless support mechanism), and/or the supporting stepless reference mechanism 201 (supporting the stepless mechanism), the stepless support reference mechanism 201 is used to support the vehicle workpiece and the height direction can be adjusted and locked, and the three-way stepless reference support mechanism 501 is used to support and clamp the vehicle model workpiece. The reference support on the three-way stepless reference support mechanism 501 can be moved and locked in the vehicle height direction, vehicle length direction and vehicle width direction; the two-way stepless reference support mechanism 401 is used to support the vehicle model workpiece , the reference support on the two-way stepless reference support mechanism 401 can be moved and locked in the vehicle length direction and the vehicle width direction, wherein the length direction of the passive trolley platform 101 is the vehicle length direction (ie T direction), and the passive trolley The width direction of the platform is the vehicle width direction (ie, the B direction), and the direction perpendicular to the base surface of the passive trolley platform is the vehicle height direction (ie, the H direction). The passive trolley 1 realizes different models 2, 3, and 4 of the passive trolley 1 through the adjustment of the three-way stepless reference support mechanism 501, and/or the two-way stepless reference support mechanism 401, and/or the adjustment of the stepless support reference mechanism 201 switch. The locking of the above-mentioned three-way stepless reference support mechanism 501 , the two-way stepless reference support mechanism 401 and the stepless support reference mechanism 201 are all realized by respective corresponding braking mechanisms.

The supporting stepless mechanism of the passive trolley 1 suitable for multiple models, as shown in Figure 2, supports the stepless mechanism 201, including two straight line support guide rails 202 vertically arranged at intervals, and slide bars 204 and The brake mechanism 203 that cooperates with it, the tops of two slide bars 204 are connected on the beam angle iron 206, and the two ends of the beam angle iron 206 are equipped with insulating reference support 207, prevent the electric leakage in the process of car body welding, two The slide bar 204 is also provided with an external power interface for providing a power source for adjusting the vehicle height direction of the insulating reference support 207, and the linear support guide rail 202 is also provided with a reference stopper and an overtravel stopper and is used to confirm the insulation reference support 207. Ruler for moving displacement.

The power source of the switching mechanism of the present invention is arranged independently on the outside of the passive trolley, which reduces the weight of the multi-model passive trolley, making the trolley lighter and simpler.

The insulating reference support 207 includes an insulating plate fixedly connected with the beam angle iron 206, an adjusting spacer, a supporting block, and an insulating sleeve placed on the supporting block, which are sequentially connected from bottom to top. The sliding bar 204 is provided with a limit block 208 that cooperates with the touch switch of the external switching mechanism, and an angle iron 209 that cooperates with the proximity switch of the external switching mechanism.

The working principle of the supporting stepless reference mechanism 201: According to the information of different models, the external control system transmits control commands through the I/O communication module, and controls the sliding bar 204 to move to the vehicle height of the corresponding model, and the angle iron 209 on the sliding bar 204 touches the The corresponding proximity switch of the external switching mechanism, the limit block 208 touches the corresponding touch switch of the external switching mechanism (the micro switch is used in this embodiment), the positioning signal is fed back to the external control system, and the external control system is controlled by the air source control system. The moving mechanism, the air-off brake block embraces the linear guide rail, and the ventilation brake block unlocks the linear guide rail.

The present invention is not limited to the specific embodiments described above, and further developments made by those skilled in the art according to the present invention all fall within the scope of protection of the present invention.

Claims (3)

1. The electrodeless mechanism of support of the most passive chassis, it is characterised in that: include the straight support guide rail that two intervals are vertically arranged, straight two Being mounted on slide bar and matched arrestment mechanism on line supporting guide, the top of two slide bars is connected on a crossbeam angle bar, The two ends of crossbeam angle bar are provided with insulation reference support, described two slide bars are additionally provided with external impetus interface for providing regulation institute State the power source in the overall height direction of insulation reference support.
2. The electrodeless mechanism of support of passive chassis the most according to claim 1, it is characterised in that: also set on described straight support guide rail It is equipped with benchmark block and excess of stroke block and for confirming the scale of described insulation reference support moving displacement.
3. The electrodeless mechanism of support of passive chassis the most according to claim 1, it is characterised in that: described insulation reference support include with Described crossbeam angle bar is fixed the insulation board of connection, is adjusted pad, bracer and be placed in the insulation sleeve on a bracer, by lower to On be sequentially connected with.