JPH0570837U - Sub-assembly device - Google Patents

Abstract

(57) [Abstract] [Purpose] Waste of equipment and space can be saved, and 2 in one place.
An object of the present invention is to provide a sub-assembly device capable of sub-assembling a work that requires more than one type of work or a plurality of types of work, and greatly reducing the labor of a worker and improving efficiency. [Structure] Plural kinds of processing machines such as welding machines 1, 2 and 3 for welding weld nuts and a machine tool 4 for processing a hole and the like are arranged on a work 14 in a centralized manner. The pallet changer 5 is installed in the vicinity, and the work 14 on the work carrying-in pallet 10 that is carried to the sub-assembly work position P on the pallet changer 5.
Robot 16 that grabs the workpiece and selectively loads it into a processing machine according to the type of the work 14 and sets the sub-assembly product 14A by the work processing on the pallet 12 for exclusive use of the sub-assembly product on the pallet changer 5.
Is characterized by being installed.

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a subassembly device installed in, for example, an automobile assembly factory and used for subassemblies of parts.

[0002]

[Prior Art]

 Generally, in subassemblies of parts such as automobile front frames and front pillar inners, an operator takes out the workpieces on the workpiece carry-in pallet one by one, and sets the workpieces on a welding machine, machine tool, or other processing machine. Weld or punch a weld nut of a specified standard to perform sub-assemblies, and the operator regularly and regularly loads the sub-assemblies (front frame, front pillar inner, etc.) into a dedicated pallet. When the sub-assemblies are full, the dedicated pallets are carried out by a forklift to the automobile assembly line.

[0003]

[Problems to be solved by the device]

 By the way, the above-mentioned conventional sub-assembly work of parts is performed in different places for each type of work, so a welding machine for welding weld nuts, etc. and a machine tool such as a machine tool for drilling etc. Are scattered and installed. In other words, similar processing equipment is installed in many places in the factory, and there is much waste in terms of equipment costs and space, and it is economically inefficient. Further, for example, in subassembly work of a work that requires machining of two or more types, it is necessary for an operator to carry the work and apply it to different machining machines one after another, which requires a lot of labor and is inefficient. Is.

The present invention has been made in view of the above circumstances, and an object of the present invention is to consolidate processing machine equipment that has been scattered in the past, to save waste of equipment cost and space, and to perform processing of two or more types in one place. It is an object of the present invention to provide a sub-assembly device that can automatically perform sub-assemblies of work requiring multiple types of work and sub-assemblies of multiple types of work, and can greatly reduce the labor of workers and improve efficiency.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the sub-assembly device of the present invention has a plurality of types of processing machines that perform welding such as welding of nuts and machining of holes on a work, concentrated in one place, and in the vicinity of this. A pallet changer is installed, and the work is carried into the sub-assembly work position on this pallet changer, and the work on the work pallet is grabbed to select the processing machine according to the type of the work. It is characterized in that a robot is installed to selectively load and set the sub-assemblies produced by machining the work into a pallet dedicated to the sub-assemblies on the pallet changer.

[0006]

[Action]

 According to the sub-assembly device having the above-mentioned configuration, when the work loading pallet carrying the required work is brought to the sub-assembly work position on the pallet changer, the robot automatically grabs the work on the pallet, From the multiple types of processing machines that are concentrated in the vicinity, select at least a number of processing machines according to the type of the work, carry the work into the machine and set it. Perform necessary processing such as welding and drilling of weld nuts. The sub-assembled parts are loaded on the pallet dedicated to the sub-assembly by the robot on the pallet changer. When the dedicated pallet becomes full, the pallet changer brings the next work loading pallet to the subassembly work position, and the robot picks up the work on this pallet in the same way as described above, depending on the type of work. The sub-assembly work is automatically repeated in such a manner that the processing machine is selected, the work is loaded into the processing machine and set, and predetermined processing is performed.

[0007]

【Example】

 An embodiment of the subassembly device of the present invention will be described below with reference to FIG. In the figure, 1, 2 and 3 are welders as a work processing machine, the first welder 1 welds an M5 weld nut, the second welder 2 welds an M6 weld nut, and a third welder. Machines 3 are each set to weld weld bolts. In the figure, 4 is a machine tool for making holes of various sizes as a work machine. Such plural kinds of processing machines, that is, the first to third welding machines 1, 2 and 3 and the machine tool 4 are arranged in a row in one place in a factory so as to be adjacent to each other.

A pallet changer 5 is installed parallel to the front side of a location where these various processing machines are centrally arranged. The pallet changer 5 has a horizontally long base 7 having a pair of guide rails 6 arranged side by side on the upper surface thereof, and a pair of left and right moving tables 8 and 9 are installed on the guide rails 6 of the base 7. The moving tables 8 and 9 are self-propelled, and can reciprocate with each other to alternately move to a preset assembly work position P. Work transfer pallets 10 and 11 are placed in the right half positions of the upper surfaces of these moving tables 8 and 9, respectively, and pallets 12 and 13 dedicated to sub-assemblies are loaded and unloaded in the left half by a not shown forklift or the like. I am

The work carrying-in pallets 10 and 11 are carried in by a forklift or the like (not shown) in a state where a plurality of works 14 and 15 are preliminarily mounted in a work manufacturing factory or the like. The work 14 is a front frame of an automobile body in the illustrated example, and the work 15 is, for example, a front pillar inner and is a different part. Further, the sub-assemblies 14A for exclusive use of sub-assemblies can be regularly mounted and held with the sub-assemblies 14A (not shown because they are not mounted on the right-side pallet 13) in which the works 14 and 15 are processed by the above-mentioned processing machine. When the sub-assembly product 14A is full, the sub-assembly product 14A is unloaded to a vehicle body assembly line by a not shown forklift or the like.

A multi-joint robot 16 is installed between a group of various processing machines centrally arranged at the one place and a pallet changer 5 near the front side thereof. The robot 16 grabs each of the workpieces 14 on the workpiece loading pallet 10 carried to the sub-assembly working position P on the pallet changer 5 and picks up the workpiece 14 from the plural types of processing machines. The sub-assembly 14A on the pallet changer 5 is automatically loaded, and the sub-assembly 14A on the pallet changer 5 is automatically loaded and set on the pallet changer 5. When the work carry-in pallet 11 is brought to the assembly work position P, the work pieces 15 on the work piece pallet 11 are individually gripped, and one of the plural kinds of processing machines is changed to a processing machine corresponding to the type of the work 15. Pallet chain for subassembly products that are selectively loaded and set and processed It is intended to automatically carry out the work of loading the subassembly article dedicated pallet 13 on catcher -5.

Therefore, the multi-joint robot 16 is mounted on the track 17 and can reciprocate by a self-propelled type along a group of various processing machines, the multi-joint arm can rotate and bend, and the work can be attached to the tip of the arm. It has a grasping hand (material handling hand) 18. However, the work gripping hand 18 can be replaced according to the type of work.

That is, a hand changer 19 is provided adjacent to the track 17 of the robot 16, and a plurality of work gripping hands 18a, 18b, ... Corresponding to various works are regularly erected on this table. Then, the robot chooses one of these and exchanges hands.

The robot 16 automatically detects the movements of the moving tables 8 and 9 of the pallet changer 5 and the types of the work loading pallets 10 and 11 on the pallet changer 5 by a sensor (not shown) such as a photoelectric tube. The various operations described above are performed.

However, in the case of the sub-assembly device having such a configuration, for example, as shown in the drawing, when the moving table 8 moves to the sub-assembly working position P on the pallet changer 5, the work-carrying pallet 10 carried on the moving table 8 is placed. Each of the front frames of the work 14 is automatically picked up by the robot 16 by the robot 16 and the work gripping hand 18 is used to pick up one by one. A processing machine of a table, for example, the first welding machine 1 is selected, and the work 14 is carried into the first welding machine 1 while being gripped and set, and an M5 weld nut is welded to a predetermined portion of the work 14. After that, if necessary, the work 14 is moved to the machine tool 4 and set therein, and required drilling is performed there. The parts sub-assembled by performing the necessary processing in this way, that is, the sub-assembled products 14A are regularly loaded by the robot 16 on the pallet 12 dedicated to the sub-assembly products on the pallet changer 5.

When the pallet 12 dedicated to the sub-assembly is full in this way, the pallet 12 dedicated to the sub-assembly is carried out to the body assembly line of the automobile by a forklift or the like, and the pallet 12 dedicated to the sub-assembly is loaded in place of the pallet 12 dedicated to the sub-assembly. ..

When the work 14 on the work carrying-in pallet 10 is used up, the moving table 9 instead of the moving table 8 on the pallet changer 5 moves to the sub-assembly working position P. At this time, if the work mounted on the moving table 9 is of the same type as the previous time, the robot 16 operates to perform the sub-assembly operation as described above. In the case of the work 15, the robot 16 returns the work gripping hand 18 that it has previously held to the table of the hand changer 19, and instead selects and takes out the work gripping hand 18a corresponding to the work 15. Exchange hands.

After this, the robot 16 moves and grabs each work 15 by the work gripping hand 18a, and selects one of the plurality of types of processing machines according to the type of the work 15. Select a processing machine, for example, the second welding machine 2, carry in and set the work 15 while gripping the work 15, and weld a M6 weld nut to a predetermined position of the work 15 by By performing the necessary processing, subassemblies are made, and the subassemblies can be regularly loaded on the pallet 13 dedicated to the subassemblies.

It should be noted that the present invention is not limited to the above-described embodiment, but for example, if the robot 16 has a wide trajectory range of the hand 18 due to bending and stretching of an articulated arm, the robot 16 is always provided with a trajectory 17 to reciprocate. If the work gripping hand 18 is capable of gripping various kinds of work, then it is not necessary to provide the hand changer 19 to get drunk. In addition, various changes can be made without departing from the scope of the present invention.

[0019]

[Effect of the device]

 Since the sub-assembly device of the present invention is configured as described above, it is possible to consolidate the processing machine equipment that has been scattered in the past, to save the waste of equipment cost and space, and to work with two or more types of work in one place. The sub-assemblies of, and the sub-assemblies of multiple types of workpieces can be automatically performed, which can greatly reduce the labor of workers and improve the efficiency.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a sub-assembly device of the present invention.

[Explanation of symbols]

1, 2, 3, 4 ... Processing machine (1, 2, 3 ... Welding machine, 4 ... Drilling machine tool), 5 ... Pallet changer, 10, 11
... Work-in pallet, 12, 13 ... Pallet for exclusive use of sub-assembly, 14, 15 ... Work, 14A ... Sub-assembly, P ... Sub-assembly work position.

Claims (1)

[Scope of utility model registration request] 1. A plurality of types of processing machines for welding a welding nut or the like and forming a hole on a work are centrally arranged at one place, and a pallet changer is installed in the vicinity of the processing machine. The sub-assembly is loaded into the work position and the work on the work pallet is grabbed, and the work is selectively loaded from one of the plurality of types of processing machines to the processing machine according to the type of the work and set. A sub-assembly device comprising a robot for loading sub-assembly products on a pallet changer pallet dedicated to the sub-assembly product.