JPH0484694A - Processing method for work - Google Patents

Abstract

PURPOSE:To improve the processing efficiency of works by erecting and holding the works on the respective side faces of a turn table of an n-polygonal column which rotates stepwise, alternately processing the respective surfaces of the works by the processing robot of this turn table and simultaneously executing the feeding and ejection of the works to and from the turn table. CONSTITUTION:A symbol 1 is the turn table of a triangular column and the processing robot 2 is disposed around this table. The turn table 1 rotates stepwise by 120 deg. each clockwise and stops at the position nearly opposite to the processing robot 2. The turn table 1 holds the works W on the respective side faces thereof in the state of leaning the works thereon. The processing robot 2 has a rotary wire buff 3 at the front end of an arm 2a. While the works W are successively fed to a 2nd position and a 3rd position by the stepwise rotation of the turn table 1, the welding spatters on the left side of the works W and the welding spatters on the right side of the works W are removed respectively by the processing robot 2.

Description

DETAILED DESCRIPTION OF THE INVENTION a. Field of Industrial Application The present invention relates to a method for processing a workpiece used for removing welding spatter from a motorcycle frame.

b. Prior art and its problems In the manufacturing process of motorcycle frames, welding spatter is removed by applying a wire to the welded workpiece. These work processes have been automated in recent years with the introduction of robots, and the processing methods in this case include the following.

First, set the workpiece on the rotary table, then process either the left or right side of the workpiece with the rotary wire puff installed at the end of the robot's arm, then rotate the rotary table to process the opposite side of the workpiece. After that, the work was carried out from the rotary table.

However, according to this method, the work cannot be processed while the work is being loaded into and taken out from the rotary table, so L! The utilization rate of the pound was low, and there was a limit to the increase in production volume.

C8 Means for Solving Problem The present invention aims to solve such problems, and its gist is that a workpiece is erected on each side of an n-prismatic rotary table that rotates with a step. At the same time, a processing robot is arranged around this rotary table, and the processing robot alternately processes each side of the rotated and stopped workpiece, and simultaneously carries the workpiece in and out of the rotary table. The workpiece processing method is characterized by:

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

FIGS. 1 and 2 show an example of an optical system used to carry out the present invention.
High frame processing equipment is shown.

In the figure, l is a triangular prism rotary table, and a processing robot 2 is arranged around the table 1. The rotary table 1 rotates clockwise (in the direction of the arrow in the figure) in steps of 120', and is always stopped at a position where its apex is opposite the processing robot 1-2. In addition, the rotary table l is in a state (
A clamp means (not shown) is provided for holding the head pipe in a state in which the head pipe side is at the top. The processing robot 2 is equipped with a rotary wire buff 3 at the tip of an arm 2a.

Then, the work W is carried into the rotary table 1 from the first position A on the opposite side to the processing robot 2, and as the table 1 rotates step by step, it is moved to the second position B1.
It will be sequentially sent to the third position C. first,
Second position B on the upstream side in the rotational direction of the rotary table 1
The welding spatter on the left side of the workpiece W is removed by the processing robot 2, and then the welding spatter on the right side of the workpiece W at the third downstream position C is removed by the processing robot 2. Reference numeral 4 denotes a carry-out robot, which is configured to clamp the finished workpiece W onto the tip of the arm 4a of the robot 4 and transfer it from the third position C to the head pipe polling machine 5 for the next process.

Next, a method for processing the workpiece W will be explained based on FIG. 3.

First, the workpiece W is carried into the rotary table 1 from the first position A and set. Next, the rotary table 1 is rotated by one step to send the workpiece W1 to the second position B, where the left side of the workpiece WI is processed. While this machining is being carried out, the next workpiece W2 is carried into the rotary table 1 from the first position 8,
Set. After finishing machining on the left side of workpiece W,
The rotary table 1 is further rotated by one step to send the workpiece WI to the third position C. At the same time, the arm 2a of the processing robot 2 is moved, and after machining the right side of the workpiece WI, the processing robot 2 is moved again. The left side of the workpiece W2, which has been moved to the second position B by swinging the arm 2a, is processed.

Then, while the processing robot 2 is processing the right side of the workpiece WI, the third workpiece W3 is carried in from the first position 8 and set. Further, while the processing robot 2 is processing the left side of the workpiece W2, the workpiece W2 is carried out by the carrying-out robot 4. When the machining of the left side of the workpiece W2 is completed, the rotary table 1 is rotated one step at a time and the same machining is repeated. At this time, the workpiece W is carried in when the workpiece W at the third position C is processed, and the workpiece W is carried out when the workpiece W at the second position B is processed.

When processing the workpiece W in this manner, the workpiece W is loaded into and taken out from the rotary table l at the same time as the workpiece W is processed, and from the second rotation of the rotary table 1 onwards, the workpiece W is processed. is machining on the right side of workpiece Wn, machining on the left side of workpiece Wfi+1, and rotating the table by 1.
Performed as a cycle (see method (I) in Figure 5)
.

Note that in this embodiment, the work W is carried in from the third time onwards.
Although this is performed when the right side of the workpiece W is being processed at position C, it may also be performed when the left side of the workpiece W is being processed at the second position B.

In addition, in this embodiment, the workpiece W7 is processed by the method (1) shown in FIG.
As shown in the figure, the left side and the right side are machined in this order, but as shown in the same method (It), after the third rotation of the rotary table 1, the work W. , I, and the right side of the workpiece W, , may be processed in this order. In this way, the work W is carried in and carried out at the first position A.

Furthermore, as shown in FIG. 4, by using a square prism rotary table 1, the work W may be carried in and carried out at different positions.

d. Effects of the Invention In the present invention, the loading and unloading of the workpiece to and from the rotary table is performed simultaneously with the processing of the workpiece, so the operating cycle of the equipment is shortened accordingly, and the number of units produced is increased.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of the processing equipment used to carry out the present invention, Fig. 2 is a plan view of the same equipment, Fig. 3 is a process diagram when carrying out the invention using the same equipment, and Fig. 4 5 is a diagram conceptually showing another processing method, and FIG. 5 is a timing chart of processing steps comparing the method of the present invention and the conventional method. 1...Rotary table, 2...Processing robot, 3
...Wire buff, 4...Carry-out robot, W.
··work. Wn+3

Claims (2)

[Claims] (1) A workpiece is erected and held on each side of an n-prismatic rotary table that rotates in steps, and a processing robot is placed around this rotary table, and each side of the workpiece is rotated and stopped by this processing robot. A workpiece processing method characterized by processing the workpieces alternately and simultaneously carrying the workpieces in and out of the rotary table. (2) In the case where the rotary table is a triangular prism, first a workpiece on the downstream side in the rotational direction of the rotary table is processed, and then a workpiece on the upstream side is processed. Processing method for the workpiece described in section.