CN218144371U - Workpiece feeding equipment for automobile welding line - Google Patents

Abstract

The utility model discloses a work piece equipment of loading for car welding line, it includes: a conveying device; a fixing mechanism connected with the conveying equipment; the grabbing mechanism is used for grabbing the workpiece; the universal moving device is respectively connected with the fixing mechanism and the grabbing mechanism; the conveying equipment is used for conveying the fixing mechanism, the grabbing mechanism and the grabbed workpieces to a preset position, then the grabbing mechanism is used for loading the workpieces, in the workpiece loading process, the grabbing mechanism is used for carrying out position adjustment through the universal moving device, and then the workpieces are driven to carry out position adjustment, so that the workpiece loading is finally completed. The invention adjusts the position of the grabbing mechanism and the workpieces grabbed by the grabbing mechanism through the universal rolling device, realizes the self-adaptive matching and alignment of the two workpieces, and finally eliminates the influence of size and position errors.

Description

Workpiece feeding equipment for automobile welding line

Technical Field

The utility model relates to the field of machine manufacturing, specifically a workpiece feeding equipment for automobile welding line.

Background

On the automobile body welding line, the production of the automobile body is highly automated, and the size of the automobile body needs to be strictly and accurately controlled. However, the assembly in the production link inevitably generates a large size accumulated error, and cannot be adapted to a new workpiece to be welded, so that after the new workpiece is loaded, the new workpiece needs to be positioned to be aligned with the loaded workpiece. Otherwise, if the assembly is forced to be spliced and welded, a larger size error of a new assembly can be caused, and the product quality is seriously influenced.

Aiming at the problems, at present, a robot is mostly adopted to cooperate with a rigid hard-connected gripper to carry and position a workpiece, and the workpiece is subsequently overhauled and polished manually, but the efficiency is low, extra stations and labor cost are required to be added, the requirement of automatic production is not met, or a visual positioning guide system is utilized to guide the gripper to carry and position the workpiece, but the cost is high, and the debugging difficulty is high.

SUMMERY OF THE UTILITY MODEL

To prior art not enough, the utility model provides a work piece equipment of loading for car welding line, the position of the universal rolling device adjustment of its accessible snatchs the mechanism and the work piece that snatchs realizes the self-adaptation cooperation of two work pieces and aligns to final elimination size, position error's influence.

In order to achieve the above purpose, the utility model provides a following technical scheme:

a workpiece loading device for an automobile welding line is provided, which comprises:

a conveying device;

a fixing mechanism connected with the conveying equipment;

the grabbing mechanism is used for grabbing the workpiece;

the universal moving device is respectively connected with the fixing mechanism and the grabbing mechanism;

the conveying equipment is used for conveying the fixing mechanism, the grabbing mechanism and the grabbed workpieces to a preset position, then the grabbing mechanism is used for loading the workpieces, in the loading process, the grabbing mechanism is used for carrying out position adjustment through the universal moving device, and then the workpieces are driven to carry out position adjustment, so that loading is finally completed.

Preferably, the grasping mechanism includes:

a mounting frame;

a clamping unit connected with the mounting rack;

and the clamping driving unit is connected with the clamping unit and is used for driving the clamping unit to open/close so as to clamp/release the workpiece.

Preferably, the grasping mechanism includes: and the adsorption unit is connected with the grabbing mechanism and is used for adsorbing the workpiece.

Preferably, the gimbal mechanism includes:

the connecting piece is connected with the grabbing mechanism;

the guide plate is connected with the fixing mechanism and/or the grabbing mechanism;

and the universal rolling body corresponds to the position of the guide plate and rolls along the matching surface of the guide plate.

Preferably, the guide plate and the universal rolling body are provided with a plurality of parts, and one universal rolling body correspondingly rolls along the matching surface of one guide plate.

Preferably, the ball transfer elements include ball transfer elements and ball transfer mounts.

Preferably, the guide plate includes:

a first guide plate connected to the fixing mechanism;

and/or a second guide plate connected with the fixing mechanism.

Preferably, the universal rolling element includes:

the first universal rolling body is connected with the connecting piece and corresponds to the first guide plate in position;

and/or a second universal rolling body which is connected with the grabbing mechanism and corresponds to the position of the second guide plate.

Preferably, the workpiece loading device further comprises:

and the balancing device is connected with the fixing mechanism and the grabbing mechanism and is used for offsetting the total weight of part/all of the grabbing mechanisms or offsetting the total weight of part/all of the grabbing mechanisms and workpieces grabbed by the grabbing mechanisms.

Preferably, the workpiece loading device further comprises: a locking mechanism for fixing a position of the grasping mechanism so that the grasping mechanism is in a locked state.

Compared with the prior art, the utility model discloses possess following beneficial effect:

the utility model discloses accessible balancing unit offsets the gravity of snatching the mechanism for snatch the mechanism and remove easily, further snatch the mechanism and the position of the work piece that snatchs through universal rolling device adjustment, realize the self-adaptation cooperation of two work pieces and align, with the influence of finally eliminating size, position error, satisfy follow-up production technological requirement, guarantee product quality.

Drawings

FIG. 1 is an overall structure diagram of the workpiece loading device for the automobile welding line of the present invention;

fig. 2 is a schematic view of the workpiece loading device of the present invention after grabbing a workpiece;

FIG. 3 is a block diagram at A in FIG. 1;

fig. 4 is a schematic view of the workpiece loading device of the present invention in a state of loading workpieces after grabbing the workpieces;

fig. 5 is a schematic diagram of the present invention, in which the position of the workpiece is adjusted by the universal rolling device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

as shown in fig. 1 to 3, the present embodiment provides a workpiece loading apparatus for an automobile welding line, wherein the loading refers to a process of assembling one workpiece (e.g., an automobile roof panel, etc., i.e., a new workpiece) to another workpiece (e.g., an automobile body frame, i.e., an assembly) to wait for a subsequent welding.

Specifically, the workpiece loading device comprises:

conveying equipment such as robots and the like;

a fixing mechanism 10 connected with the conveying equipment, wherein the fixing mechanism 10 can be a frame structure;

a gripping mechanism 20 for gripping the workpiece 100;

the universal moving device 30 is respectively connected with the fixing mechanism 10 and the grabbing mechanism 20;

the conveying equipment is used for conveying the fixing mechanism 10, the grabbing mechanism 20 and the grabbed workpiece 100 to a preset position synchronously, then the grabbing mechanism 20 is used for loading workpieces, in the workpiece loading process, the grabbing mechanism 20 is used for carrying out position adjustment through the universal moving device 30, and further the workpiece 100 is driven to carry out position adjustment, so that workpiece loading is finally completed.

Specifically, the grasping mechanism 20 includes:

a mounting frame 201;

a clamping unit 202 connected to the mounting frame 201;

and a clamping driving unit 203 connected to the clamping unit 202 for driving the clamping unit 202 to open/close to complete clamping/releasing of the workpiece 100.

In this embodiment, there are a plurality of clamping units 202 and a plurality of clamping driving units 203, and one clamping driving unit 203 correspondingly drives one clamping unit 202 to open/close to clamp different parts of the workpiece 100, and meanwhile, the clamping driving unit 203 includes a cylinder assembly.

The gimbaled movement device 30 comprises:

a connecting member 301 which connects the grasping mechanism 20;

a guide plate connected to the fixing mechanism 10 and/or the grasping mechanism 20;

the universal rolling body corresponds to the position of the guide plate and rolls along the matching surface of the guide plate; the universal rolling body comprises a universal ball and a universal ball mounting piece;

in this embodiment, the guide plate and the universal rolling bodies may be multiple, and one universal rolling body correspondingly rolls along the matching surface of one guide plate, and meanwhile, the guide plate may be sequentially disposed in the height direction, and correspondingly, the universal rolling bodies are correspondingly matched in the height direction, thereby increasing the flexibility of the universal rolling bodies when rolling.

For example, as shown in fig. 3, in the present embodiment, the guide plate includes:

a first guide plate 302 connected to the fixing mechanism 10;

and/or a second guide plate 302' connected with the fixing mechanism 10;

the first guide plate 302 and the second guide plate 302' are arranged in sequence in the height direction;

correspondingly, the universal rolling body comprises:

a first universal rolling body 303 connected to the connecting member 301 and positioned to correspond to the first guide plate 302;

and/or a second universal rolling body 303 'which is connected with the grabbing mechanism 20 and corresponds to the position of the second guide plate 302'.

Thereby, the first universal rolling body 303 may roll along the mating face of the first guide plate 302, and/or the second universal rolling body 303 'may roll along the mating face of the second guide plate 302'.

During work, the conveying equipment integrally moves the workpiece loading equipment to a preset position, such as a material receiving position, through the fixing mechanism 10, and then the clamping driving unit 203 drives the clamping unit 202 to be opened and closed firstly, so as to grab the workpiece 100;

after the workpiece 100 is grabbed, as shown in fig. 4, the conveying equipment integrally moves the workpiece to another workpiece 200, and performs workpiece loading, wherein the workpiece loading process includes: the gripping mechanism 20, the workpiece 100, is moved in synchronism to align the workpiece 100 with a predetermined position on another workpiece 200, and then the clamping unit 202 is driven to open by the clamping drive unit 203 to release the workpiece 100 for fitting onto another workpiece 200.

In the workpiece loading process, a small amount of misalignment may occur between the workpiece 100 and another workpiece 200, for example, as shown in fig. 5, the roof edge S1 of the vehicle body extends into the preset notch S2 above the vehicle body frame, but the two are not aligned, and an interaction force may be generated between the two, for example, the left side wall of the preset notch S2 above the vehicle body frame presses the roof edge S1 of the vehicle body to generate a rightward action force thereon, and at this time, the interaction force may be transmitted to the universal rolling device 30, and the universal rolling element may roll rightward along the matching surface of the guide plate, so that the grasping mechanism 20 and the workpiece 100 may realize position adjustment within a small range, and self-adaptive matching and alignment of the two workpieces are realized, for example, the roof edge S1 of the vehicle body may be aligned with the preset notch above the vehicle body frame, so as to finally eliminate the influence of size and position error, meet the requirements of the subsequent production process, and ensure the product quality.

Example 2:

the present embodiment differs from embodiment 1 only in that, as shown in fig. 1 and 3, the workpiece loading apparatus further includes:

and a balancing device 40, which is connected with the fixing mechanism 10 and the grabbing mechanism 20, and is used for offsetting the total gravity of part/all of the grabbing mechanisms 20 or offsetting the total gravity of part/all of the grabbing mechanisms 20 and the workpieces 100 grabbed by the grabbing mechanisms, so as to facilitate the grabbing mechanisms 20 to move.

Further, the balancing device 40 is based on a force balance principle, and forces with different properties, such as spring tension, air/hydraulic pressure, or electromagnetic force, are generated by related equipment to counteract gravity generated by the grasping mechanism 20 and the workpiece 100, for example, the balancing device 40 may be a spring, two ends of which are respectively connected to the fixing mechanism 10 and the grasping mechanism 20, and the grasping mechanism 20 is suspended by the spring to reduce the gravity thereof.

Example 3:

the present embodiment differs from embodiment 1 or 2 only in that, as shown in fig. 1, the workpiece loading apparatus further includes: a locking mechanism 50 for fixing the position of the grasping mechanism 20 so that the grasping mechanism 20 is in a locked state and cannot move.

For example, the locking mechanism 50 includes a pin connected to the grasping mechanism 20 and a pneumatic assembly (e.g., a cylinder) connected to the pin, and when the grasping mechanism 20 does not need to be actuated, the pneumatic assembly drives the pin to extend into a pin hole formed in the fixing mechanism 10, thereby fixing the position of the grasping mechanism 20, and when the grasping mechanism 20 needs to be actuated, the pneumatic assembly drives the pin to separate from the pin hole formed in the fixing mechanism 10, thereby unlocking the grasping mechanism 20, and the position of the grasping mechanism 20 can be adjusted by the universal rolling device 30.

Example 4:

the present embodiment differs from embodiment 1 or 2 only in that, as shown in fig. 1, the grasping mechanism 20 further includes:

and the adsorption unit 204 (such as a vacuum chuck, a magnetic chuck and the like) is connected with the mounting rack 201 of the grabbing mechanism 20 and is used for adsorbing the workpiece 100 through adsorption force (such as vacuum adsorption force, magnetic force and the like) to prevent the grabbed workpiece 100 from falling off, and meanwhile, the position of the grabbed workpiece 100 is fixed to avoid the situation that the positioning precision is reduced due to shaking and vibration.

To sum up, the utility model provides a position that the universal rolling device of work piece equipment accessible was adjusted and is snatched mechanism and the work piece that snatchs realizes the self-adaptation cooperation and the alignment of two work pieces to final elimination size, position error's influence satisfies follow-up production technology requirement, guarantees product quality.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising one of 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. A workpiece feeding device for an automobile welding line is characterized by comprising:

a conveying device;

a fixing mechanism connected with the conveying equipment;

the grabbing mechanism is used for grabbing the workpiece;

the universal moving device is respectively connected with the fixing mechanism and the grabbing mechanism;

the conveying equipment is used for conveying the fixing mechanism, the grabbing mechanism and the grabbed workpieces to a preset position, then the grabbing mechanism is used for loading the workpieces, in the loading process, the grabbing mechanism is used for carrying out position adjustment through the universal moving device, and then the workpieces are driven to carry out position adjustment, so that loading is finally completed.

2. The workpiece loading apparatus of claim 1, wherein the gripping mechanism comprises:

a mounting frame;

a clamping unit connected with the mounting rack;

and a clamping driving unit connected with the clamping unit and used for driving the clamping unit to open/close so as to clamp/release the workpiece.

3. The workpiece loading apparatus of claim 1, wherein the gripping mechanism comprises: and the adsorption unit is connected with the grabbing mechanism and is used for adsorbing the workpiece.

4. A workpiece loading apparatus as in claim 1 wherein said gimbaled movement means comprises:

the connecting piece is connected with the grabbing mechanism;

the guide plate is connected with the fixing mechanism and/or the grabbing mechanism;

and the universal rolling body corresponds to the position of the guide plate and rolls along the matching surface of the guide plate.

5. The workpiece feeding apparatus according to claim 4, wherein the guide plate and the universal rolling element are provided in plurality, and a universal rolling element is adapted to roll along a mating surface of a guide plate.

6. A workpiece loading apparatus as recited in claim 4, wherein said universal rolling elements comprise universal balls and universal ball mounts.

7. The workpiece feeding apparatus of claim 4, wherein the guide plate comprises:

a first guide plate connected to the fixing mechanism;

and/or a second guide plate connected with the fixing mechanism.

8. The workpiece mounting apparatus of claim 7, wherein said universal rolling elements comprise:

the first universal rolling body is connected with the connecting piece and corresponds to the first guide plate in position;

and/or a second universal rolling body which is connected with the grabbing mechanism and corresponds to the position of the second guide plate.

9. The workpiece loading apparatus of claim 1, further comprising:

and the balancing device is connected with the fixing mechanism and the grabbing mechanism and is used for offsetting the total weight of part/all of the grabbing mechanisms or offsetting the total weight of part/all of the grabbing mechanisms and workpieces grabbed by the grabbing mechanisms.

10. The workpiece feeding apparatus of claim 1, further comprising: a locking mechanism for fixing a position of the grasping mechanism so that the grasping mechanism is in a locked state.

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