JPH04294948A - Jig equipped with inspection marking mechanism - Google Patents

Abstract

PURPOSE:To arrange that one jig out of plural jigs may be able to be specified from a mark position on a work. CONSTITUTION:Out of plural clamp mechanisms 50a, 50b, 50c on each jig 4A, 4B, 4C which clamp the different parts of a work W, one clamp mechanism which is made different according to each jig, for example, a clamp mechanism 50a is fitted with a marking mechanism 60a, and arranged so that, the jig that clamping the work W can be specified from the mark position on the work marked by means of this marking mechanism 60a at inconvenience.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a jig equipped with an inspection marking mechanism that allows a gripped jig to be identified from markings made on a workpiece.

0002

[Prior Art] Rotary milling and indexing machines are equipped with a plurality of identical jigs having almost the same structure, and each jig is made to grip a workpiece, and then the same part is machined in sequence. It is composed of For this reason, with this type of equipment, if there is a problem with a machined workpiece, it is necessary to identify which jig was used to machine it. Immediately after machining, the worker attaches a control number to the surface of the workpiece.

However, as automation progresses in recent years, and robots and manipulators are used to load and unload workpieces into jigs or equipment, management numbers are automatically assigned. As a result, if the setting position of the device is different from the previous one,
It becomes difficult to identify the jig based on the management number, which causes problems such as having to check all the workpieces in case a problem occurs.

0004

[Problems to be Solved by the Invention] The present invention has been made in view of these problems, and its purpose is to:
It is an object of the present invention to provide a new jig equipped with a marking mechanism capable of specifying a target jig with a minimum of checking work.

[0005]

[Means for Solving the Problems] That is, the present invention is a jig equipped with an inspection marking mechanism to achieve the above-mentioned problems. Among the clamp mechanisms, at least one clamp mechanism, which is different for each jig, is provided with a marking mechanism that marks the work surface in conjunction with the clamp operation.

[0006]

[Embodiment] The embodiment shown in the drawings will be explained below. The drawing shows one embodiment of the present invention, and the rotary milling table 1 shown here includes three jigs 4.
A, 4B, and 4C are arranged at equal intervals.

These jigs 4A, 4B, and 4C all have the same configuration, and one of them is shown in FIGS. 2 and 3.
To explain, this jig 4 includes two positioning pins 41, 41 that position the workpiece W at two locations, and three clamp mechanisms 50a, 50b that hold the workpiece at three locations.
, 50c.

The above-mentioned two positioning pins 41, 41 are for positioning the workpiece W in a fixed direction to face a processing tool such as a cutter (not shown). By engaging the engagement pin 42 provided at the tip of the two platform parts 2, 2 protruding at each jig arrangement position, and engaging the engagement part of the workpiece W, the 2. It is configured to position the workpiece W at a certain point.

On the other hand, three clamp mechanisms 50a
, 50b, 50c are receivers 5 that support the lower surface of the workpiece W.
1 and a clamp body 54 that presses the workpiece W from above, and is mounted on each of three platform-shaped parts 3a, 3b, and 3c protruding from the jig placement position of the table 1. The above-mentioned receiver 51 is configured such that the height can be adjusted when the lower surface of the workpiece W is bare by screwing a workpiece receiver 53 onto the top of the stud 52 erected on the platform portion 3. In addition, the clamp body 54 described above is configured such that the rear end of a clamp arm 57 pivotably supported on the upper end of a support rod 55 is moved in the clamping direction by a rod 59 of a cylinder 58 fixed to the platform portion 3. It is configured to rotate in the clamping direction.

By the way, the symbols 60a, 60b, 60 in the figure
c is a marking mechanism for marking the surface of the workpiece W so that it can be specified which of the three jigs 4A, 4B, and 4c grips the workpiece; 60, as shown in FIG.
In order to be able to engrave at position b of the workpiece W, and with jig 4C at position c of the workpiece W,
In A, the tip of the clamp arm 57a of the clamp mechanism 50a corresponding to the a position among the three clamp mechanisms 50a, 50b, and 50c, and in the jig 4B in No. 2, the b
Clamp arm 5 of clamp mechanism 50b corresponding to the position
7b, and the third jig 4C is attached to the tip of the clamp arm 57c of the clamp mechanism 50c corresponding to position c.

As shown in FIG. 4, this marking mechanism 60 has a marking holding sleeve 61 fixed to the tip of the clamp arm 57 with a nut 62, and a coil spring inside the marking holding sleeve 61. A marking element 64 receiving a downward biasing force from the holding sleeve 63 is arranged so as to constantly protrude from the lower end of the holding sleeve 61 and to be able to stamp a mark on the upper surface of the workpiece W.

In the apparatus configured as described above, the rotary milling machine rotates the table 1 intermittently or continuously while positioning and clamping each workpiece W using the three jigs 4A, 4B, and 4C on the table 1. A cutter (not shown) is successively placed in opposing positions to cut these same positions.

By the way, these works W are attached to each jig 4A.
, 4B, three clamp mechanisms 50a, 50b on 4C,
50c, and at the same time, the workpiece W is positioned and clamped to the jig 4A.
When clamping, a mark is made at position a by a marking mechanism 60a attached to the tip of the clamp arm 57a of the first clamp mechanism 50a disposed there, and similarly,
Each workpiece W positioned and clamped on the jig 4B and the jig 4C is moved by the clamp arm 57b of the corresponding clamp mechanism 50b and 50c disposed on the respective jig 4B and 4C.
, marking mechanism 60b, 60c attached to the tip of 57c
Marks are placed at positions b and c during clamping, respectively.

[0014] Therefore, if a problem arises in machining one workpiece W for some reason,
Depending on the position of the mark made on the workpiece W, for example, if the mark is made at position a, it can be immediately identified that there is some kind of defect in the jig 4A.

Although the present invention has been explained above using an example of a jig installed in a rotary milling cutter, the present invention is also applicable to an index processing machine and a tool that processes a plurality of workpieces while linearly conveying them. It can also be applied to the jig of the transer machine.

Furthermore, when the number of clamp mechanisms is small relative to the number of jigs, marking mechanisms may be provided on a plurality of clamp mechanisms that differ depending on the jigs, and the combination of marks made by these marking mechanisms may be used. It is also possible to configure one jig to be specified based on its position.

[0017]

As described above, according to the present invention, among the clamp mechanisms on each jig that clamps different parts of the workpiece, at least one clamp mechanism that is different for each jig is linked with the clamping operation. Since a marking mechanism is provided to mark the work surface by marking the work surface, it is possible to link the clamping operation and mark different positions on the work surface for each jig. The jig holding the workpiece can be easily identified from the position of the workpiece, which greatly reduces the effort involved in production management.

[Brief explanation of drawings]

FIG. 1 is a plan view of an apparatus showing an embodiment of the present invention.

FIG. 2 is a side view showing one jig installed in the same device.

FIG. 3 is a plan view of the jig.

FIG. 4 is a sectional view showing a marking mechanism provided in one clamp mechanism of the same jig.

[Explanation of symbols]

1 Tables 4A, 4B, 4C Jig 41 Positioning pins 50a, 50b, 50c Clamp mechanisms 57a, 57
b, 57c Clamp arm 60a, 60b, 60c
Marking mechanism W work

Claims (1)

[Claims] Claim 1: A plurality of jigs disposed on a machine tool to position and hold a plurality of workpieces having the same shape, the jigs being disposed on each of the jigs and clamping different parts of the workpieces. At least one of the plurality of clamp mechanisms, which are different for each jig, is equipped with a marking mechanism for marking a workpiece surface in conjunction with the clamping operation. jig.