JPH0767654B2 - Assembly equipment - Google Patents

Description

The present invention relates to an assembling apparatus having an index table.

(Prior Art) With the automation of assembly work, an assembly apparatus that uses an index table method is utilized. However, these conventional apparatuses have been proposed as a method for transferring assembly parts to a jig position on an index table. A transfer method is generally used as shown in Japanese Patent Publication No. 53-80077. This is provided with a tooling head on a swing table that can be moved up and down and swiveled, a rotary table on which a pallet is placed is provided below the swing table, and the rotary table and the swing table are provided with the rotary table. A chute extending to the sandwiched position is arranged, the swing table is lowered to hold the parts on the chute by the tooling head, and then the swing table is lifted again to separate the parts from the chute.
Then, the swing table is rotated by a predetermined angle and then lowered to place the components held by the tooling head on the pallet on the rotary table with the components open.

(Problems to be Solved by the Invention) In the above assembling apparatus, after the swing table is lowered and the parts on the chute are held by the tooling head,
The rocking table is raised again to separate the parts from the chute, and then the rocking table is rotated by a predetermined angle and then lowered to release the parts held by the tooling head on the pallet on the rotary table. Since it is placed, the swing table has to be raised and lowered and rotated when the parts are transferred from the chute to the pallet, which greatly increases the number of operations of the swing table, increasing the number of man-hours when transferring the parts. Invited. Further, in order to move up and down and rotate the swing table, many related parts are required, which complicates the device and makes the cost high due to the large number of parts. ing.

(Means for Solving Problems) The present invention has been made in view of the above problems, and provides an assembly apparatus that reduces the operations during the supply of components, has a simple structure, and is inexpensive. In order to achieve this object, in order to achieve this object, a rotary drive source 2 attached to the machine base 1, an index drive unit 3 attached to the machine base 1 and intermittently rotated by the rotary drive source 2, and an output of this index drive unit 3. Axis 3a
The index table 4 fixed to the index drive unit 3, the fixed table 5 fixed to the fixed shaft 3b of the index drive unit 3, the tool unit 6 attached to the fixed table 5, and the indexing cam shaft 3c of the index drive unit 3 A rotating cam 7 and a lever 8 that operates in conjunction with this cam 7, a spline shaft 9 that moves up and down in conjunction with this lever 8, and a chuck unit that is attached to the upper end of this spline shaft 9 via an attachment holder 10.
In the assembling apparatus that includes 11 and the chuck unit 11 is moved up and down for each intermittent rotation of the index table 4, a component take-out hole 4a which is located concentrically and circumferentially of the index table 4 and through which the chuck unit 11 can be inserted. And a plurality of jig mounting holes 4b to which a predetermined jig can be mounted are alternately formed, and the component supply table 12 is arranged on the machine base 1 below the index table 4 while the jig is directly below the chuck unit 11. When the tool mounting hole 4b stops, move the chuck unit 11 up and down to the jig,
Immediately below 11 is provided control means for raising and lowering the chuck unit 11 to the component supply table 12 when the component take-out hole 4a is stopped and operating the tool unit 6 above the component set on the jig.

(Operation) The operation of the assembling apparatus having the above configuration will be described. Assembly parts
30 is supplied by a separately provided aligning supply device 50 or the like and stays at the component supply base 12. When the part take-out hole 4a of the index table 4 is stopped at the position of the part supply base 12, the spline shaft 9 descends, the chuck unit 11 penetrates the part take-out hole 4a of the index table 4 and descends, and is assembled by the chuck 11a. After gripping 30, the chuck unit 11 moves up together with the spline shaft 9. Next, the index table 4 rotates by a predetermined indexing angle and stops at the position of the jig mounting hole 4b. At this time, the chuck unit 11 holding the assembly component 30 together with the spline shaft 9 descends again to assemble the assembly component into the jig 20 set in the jig mounting hole 4b.
Set 30 and rise again. By repeating this operation, the assembly parts 30 are continuously transferred to the jig 20 on the index table 4. The assembly component 30 set in this way is conveyed toward the tool unit 6 as the index table 4 rotates.

On the other hand, when the conveyed assembly part 30 stops at the position of the tool unit 6, a work is set on this assembly part 30,
The tool unit 6 performs a desired assembly work. Similarly, the continuous assembling work is performed.

(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 5.

In FIGS. 1 and 2, 1 is a machine base. The output shaft 3a of the index drive unit 3 is attached to the center of the machine base 1 so as to be vertical and project from the machine base 1. Further, an electric motor, which is a rotary drive source 2, is attached to the machine base 1 and power is transmitted to the input side of the index drive unit 3.
Also, the output shaft 3a of the index drive unit 3
The index table 4 is fixed to the index table 4. The index table 4 has a plurality of parts take-out holes 4a and jig mounting holes 4b which are alternately arranged at a plurality of places (for example, the same number as the number of indexes, 12 each), and the index drive unit. It is synchronized with the index of 3 and is drilled on the same radius from the center of the table. Also, index table 4
A fixed table 5 is arranged concentrically with the fixed table 5 and is fixed to the fixed shaft 3b of the index drive unit 3, and a tool unit 6 (for example, an air press) for assembly work is attached to the fixed table 5. On the other hand, a cam 7 having two large and small concave portions 7a and 7c is connected to the indexing cam shaft 3c of the index drive unit 3, and a lever 8 that rotates along the cam 7 and with 8b as a fulcrum is connected. It is attached. Further, one end of the lever 8 is connected to the lower end of a spline shaft 9 which is inserted through the center of the fixed shaft 3b, and serves as a mechanism for converting into a lifting operation. A chuck unit 11 is fixed to the upper end of the spline shaft 9 via a mounting holder 10, and the chuck unit 11 is located directly above the component take-out hole 4a (or jig mounting hole 4b) of the index table 4. It is arranged so as to be located at. Furthermore, this chuck unit
A component supply table 12 is attached to the machine base 1 directly below 11 and below the index table 4. The support base 40 is attached to the machine base 1 directly below the tool unit 6 when required for assembly work.

With the mechanism thus configured, the chuck unit 11 is moved up and down in synchronization with the indexing of the index table 4. That is, when the roller 8a of the lever 8 is located in the large recess 7a of the cam 7 connected to the indexing cam shaft 3c, the chuck unit 11 together with the spline shaft 9 is provided.
Is the most lowered and the roller is moved to the position of the maximum radius portion 7b of the cam 7.
When there is 8a, the chuck unit 11 moves up most. Further, when the small recess 7c of the cam 7 has the roller 8a, the chuck unit 11 is lowered to the intermediate position.

3 and 4 show a cam 7 according to another embodiment, which has the same function as above.

The assembling apparatus of this embodiment having such a structure can perform the assembling work as follows.

The assembly parts 30 are stopped at the parts supply table 12 by the separately arranged aligning and supplying device 50.

When the electric motor which is the rotary drive source 2 is driven to stop the parts take-out hole 4a of the index table 4 at the position of the parts supply base 12, the spline shaft 9 descends, and the chuck unit 11 fixed to the spline shaft 9 moves to the index table. After passing through the component take-out hole 4a of No. 4 and descending (FIG. 5 (a)), the chuck 11a grips the assembled component 30, and then the chuck unit 11 ascends together with the spline shaft 9. next,
The index table 4 rotates by a predetermined indexing angle and stops at the next jig mounting hole 4b (FIG. 5 (b)). At this time, the assembly parts 30 together with the spline shaft 9
The chuck unit 11 that grips is lowered again (Fig. 5 (c)), the assembly component 30 is set in the jig 20 installed in the jig mounting hole 4b, and the chuck unit 11 is raised again (Fig. 5 ( d)). By repeating this operation, the assembly parts 30 are successively transferred to the jig 20 on the index table 4 successively. The assembly part 30 thus set is conveyed toward the tool unit 6 as the index table 4 rotates. On the other hand, when the conveyed assembly component 30 stops at a position directly below the tool unit 6, a work is set on the assembly component 30, and a desired assembly work such as press fitting and caulking is performed by the air press which is the tool unit 6. Similarly, the assembling work can be continuously performed.

In addition, starting and stopping of the electric motor which is the rotary drive source 2, opening and closing of the chuck 11a, and the tool unit 6 are synchronously operated by an assembly control device (not shown) which is a control means.

(Effects of the Invention) As is apparent from the above description, the assembling apparatus of the present invention is provided with a jig which is concentric with the index table and is located in the circumferential direction, through which the chuck unit can be inserted, and a predetermined jig. Plural tool mounting holes are alternately drilled, and the parts supply table is placed on the machine base below the index table, while the chuck unit moves up and down to the jig when the jig mounting holes stop just below the chuck unit. Since the chuck unit is provided with a control means for moving the tool unit above the component set in the jig when the component take-out hole is stopped, the chuck unit is moved up and down to the component supply table. Parts can be supplied to the jig only by raising and lowering the unit and rotating the index table. As a result, it is possible to reduce the number of man-hours at the time of component transfer work and to improve the work efficiency as compared with the conventional device. Further, since the operation of the chuck unit is only the raising / lowering operation, the number of parts for operating the chuck unit is reduced, the apparatus can be configured easily and compactly, and an inexpensive assembling apparatus can be provided. Many effects such as possible can be obtained.

[Brief description of drawings]

The drawings show an embodiment of the present invention. FIG. 1 is a side view in which a part of the assembling apparatus is sectioned, FIG. 2 is a plan view of the assembling apparatus,
FIGS. 3 and 4 are drawings showing another embodiment of the cam, and FIGS. 5 (a), (b), (c), and (d) are explanatory views showing the operation of the chuck unit. 1: Machine base, 2: Rotational drive source 3: Index drive unit 3a: Output shaft, 3b: Fixed shaft 3c: Indexing cam shaft 4: Index table 4a: Parts extraction hole, 4b: Jig mounting hole 5: Fixed table, 6: Tool unit 7: Cam, 7a: Large recessed portion 7b: Maximum radius portion, 7c: Small recessed portion 8: Lever, 8a: Roller 8b: Support point, 9: Spline shaft 10: Mounting holder, 11: Chuck unit 11a: Chuck, 12: Parts supply table 20: Jig, 30: Assembly parts 40: Support table, 50: Alignment supply device

Claims (1)

[Claims] 1. A rotary drive source 2 mounted on a machine base 1.
And attached to the machine base 1 and the rotary drive source 2
Index drive unit 3 that rotates intermittently by
An index table 4 fixed to the output shaft 3a of the index drive unit 3, a fixed table 5 fixed to the fixed shaft 3b of the index drive unit 3, a tool unit 6 attached to the fixed table 5, and an index drive unit 3 Indexing cam shaft
A cam 7 that is connected to 3c and rotates, a lever 8 that operates in conjunction with the cam 7, a spline shaft 9 that moves up and down in conjunction with the lever 8, and a mounting holder 10 on the upper end of the spline shaft 9 Attachable chuck unit 11
In the assembling apparatus which is provided with the chuck unit 11 and is moved up and down for each intermittent rotation of the index table 4, a component take-out hole 4a which is located concentrically and circumferentially of the index table 4 and through which the chuck unit 11 can be inserted, A plurality of jig mounting holes 4b to which a predetermined jig can be mounted are alternately bored, and a component supply table 12 is arranged on the machine base 1 below the index table 4 while the jig is provided directly below the chuck unit 11. When the mounting hole 4b stops, move the chuck unit 11 up and down to the jig,
Directly below 11 is provided control means for moving the chuck unit 11 up and down to the component supply base 12 when the component take-out hole 4a is stopped and for activating the tool unit 6 above the component set on the jig. Assembly equipment.