JPH0448538Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Fields> The present invention is applicable to electric parts such as injectors used in internal combustion engines, in other words, coils in electrical conductor housings having an insulator attached to the outer circumferential surface. This invention relates to a device for marking the markings on electrical components and inspecting the insulation state of the electrical components.

<Prior Art> Conventionally, marking on the above-mentioned parts and inspecting insulation have been performed using separate devices with different functions.

The conventional marking device and insulation testing device will be explained with reference to FIGS. 2 and 3, respectively. In FIG. 2, for example, an electrical component 2 is placed at a predetermined position on a table 1.

This electrical component 2 has a coil 5 disposed inside a conductor housing 4 having a synthetic resin insulator 3 attached to its outer circumferential surface, and both terminals 5 of the coil 5.
a and 5b pass through the housing 4 without electrically contacting it, and protrude to the outside via the insulator 3.

Further, a punch 7 for marking the surface of the insulator 3 is attached to the main body 6 of the marking device.

In FIG. 3, one end side test terminal 13 of the insulation tester 12 is placed at a predetermined position on the table 11.
A conductive jig 15 to which the housing 4 is mounted and fixed is placed with an insulating plate 16 in between.

Now, when the marking device is activated, the marking punch 7 descends and stamps, for example, a lot number, etc., on the surface of the insulator 3. Thereafter, the electrical component 2 is placed on the jig 15 placed at a predetermined position on the table 11 of the insulation testing device, and the other end testing terminal 14 of the insulation testing device 12 is connected to one terminal 5a of the coil 5. Then, the insulation state between the coil 5 and the housing 4 is inspected.

<Problems to be solved by the invention> However, in the conventional method as described above,
Stamping and insulation testing are performed using two types of equipment with different functions: a marking device and an insulation testing device, which increases equipment costs. It was necessary to transfer the test equipment each time and perform each function in a separate process, which required a large number of processes and caused troublesome work.

The present invention has been devised in view of these conventional problems, and aims to solve the above-mentioned problems by providing a configuration in which marking and insulation inspection can be performed in the same process using one type of device.

<Means for Solving the Problems> For this reason, the present invention provides a method in which a coil is placed inside a conductor housing having an insulator attached to the outer circumferential surface, and both terminals of the coil are in electrical contact with the housing. An engraving and insulation inspection device for stamping the insulator and inspecting the insulation between the coil and the housing for a part that penetrates through the insulator without any damage and protrudes to the outside through the insulator, A device main body having a punch for marking on the surface of the insulator, and a jig made of a conductor that is placed in an insulated state on the mounting surface and connected to an inspection terminal on one end of the insulation testing machine to place and fix the housing. and an elastic member which is attached to the apparatus main body via an insulating member and connected to the other end inspection terminal of the insulation tester, and which contacts one terminal of the coil when marking the surface of the insulator with an insulation marking punch. A contact piece made of a conductor has a structure.

<Function> According to this configuration, as the stamping punch is lowered by starting the stamping/insulation testing device, the conductive contact piece also descends and reaches the surface of the insulator attached to the outer peripheral surface of the conductive housing. At approximately the same time as the marking starts, the conductive contact piece starts to come into contact with one terminal of the coil.

By the way, while the punch is pressing the insulator for marking work, the conductive contact piece continues to be in contact with one terminal of the coil due to its elastic action.

After the stamping work is completed, the pressing state continues for a while, during which time an insulation test is performed using an insulation tester.

That is, at this time, the test terminal on one end of the insulation tester is connected to a conductor jig that places and fixes the housing, and the test terminal on the other end is connected to one terminal of the coil protruding outside the insulator with an insulating member. The coil and the housing are electrically connected to each other through a contact piece made of a conductive material, and an insulation tester is used to test the insulation state between the coil and the housing.

After the insulation test is completed, the marking punch is raised to complete the marking and insulation test.

<Example> The example shown in FIG. 1 will be described below. still,
Elements that are the same as those in the conventional example are designated by the same reference numerals as in FIGS. 2 and 3, and their explanation will be omitted.

At a predetermined position on the table 21, which is a mounting surface,
A conductor jig 15 to which one end test terminal 13 of the insulation tester 12 is connected and for mounting and fixing the conductor housing 4 is placed with an insulating plate 16 interposed therebetween.

Further, a punch 7 for marking the surface of the insulator 3 is attached to the main body 22 of the marking/insulation testing device.

Then, the other end side inspection terminal 14 of the insulation inspection machine 12
An L-shaped conductive contact piece 2 having elasticity that contacts one terminal 5a of the coil 5 when the stamping punch 7 stamps the surface of the insulator 3.
3 is attached to the side surface of an insulating member 24 attached to the side wall of the device main body 22.

A hole 25 is formed in the insulating member 24 for inserting the other end test terminal 14 of the insulation tester 12, and the other end test terminal 14 is inserted into the hole 25 and connected to the conductive contact piece 23. Electrical contact is maintained by abutting.

According to this configuration, as the marking punch 7 descends due to activation of the marking/insulation testing device, the conductive contact piece 23 also descends, and the synthetic resin insulator attached to the outer circumferential surface of the conductive housing 4 moves downward. Almost simultaneously with the start of marking on the surface of the body 3, the conductive contact piece 23 begins to come into contact with one terminal 5a of the coil 5.

By the way, while the punch 7 is pressing the insulator 3 for marking work, the conductor contact piece 23
is one terminal 5 of the coil 5 due to its elastic action.
Continue to touch a.

After the stamping operation is completed, the pressing state continues for a while, during which an insulation test is performed by the insulation tester 12.

That is, at this time, the test terminal 13 on one end of the insulation tester 12 is connected to the conductor jig 15 for mounting and fixing the housing 4, and the test terminal 14 on the other end is connected to the coil 5 protruding outside the insulator 3. one terminal 5a of
The coil 5 and the housing 4 are electrically connected to each other via the insulating member 24 and the conductive contact piece 23, and the insulation tester 12 tests the insulation state between the coil 5 and the housing 4.

After the insulation test is completed, the marking punch 7 is raised to complete the marking and insulation test.

In other words, according to the above configuration, one type of device can serve as both a marking device and an insulation inspection device, and both functions can be performed in the same process, so equipment costs can be significantly reduced. With,
The conventional process of transferring the electrical component 2 from the stamping machine to the insulation testing machine every time after completing the stamping work is eliminated, and the number of man-hours can be reduced from two processes to one, greatly increasing work efficiency. It will improve.

<Effects of the invention> As explained above, according to the invention, by simply improving the existing marking device by equipping it with a conductive jig and a conductive contact piece, it is possible to insulate the marking device and the insulation with one type of device. It can serve both functions of an inspection device, and both functions can be performed in the same process, so equipment costs can be significantly reduced, and
The conventional method of transferring the parts from the stamping machine to the insulation testing machine every time after completing the stamping process and having each function performed in a separate process requires a large number of steps and is cumbersome. This drawback is eliminated, the number of man-hours can be reduced from two steps to one, and work efficiency is greatly improved.

[Brief explanation of the drawing]

Fig. 1 is a configuration diagram showing one embodiment of the present invention;
The figure shows a conventional marking device, and FIG. 3 shows a conventional insulation testing device. 2... Electrical parts, 3... Insulator, 4... Conductor housing, 5... Coil, 5a, 5b... Terminal, 7... Stamping punch, 12... Insulation testing machine,
13, 14...Inspection terminal, 15...Conductor jig, 16...Insulating plate, 21...Table, 22...
...Device body, 23...Conductor contact piece, 24...
Insulating material.

Claims (1)

[Scope of utility model registration request] A coil is disposed within a conductor housing having an insulator attached to the outer peripheral surface, and both terminals of the coil penetrate the housing without electrically contacting the housing,
Further, the marking and insulation testing device performs marking on the insulator and inspecting the insulation between the coil and the housing for a part protruding to the outside through the insulator, A device body having a stamping punch, a conductive jig that is placed in an insulated state on a mounting surface and connected to an inspection terminal on one end of the insulation testing machine, and that holds and fixes the housing, and an insulating member. a contact made of a conductive material having elasticity, which is attached to the apparatus main body and connected to the other end side inspection terminal of the insulation testing machine, and which comes into contact with one terminal of the coil when stamping the surface of the insulator with the stamping punch; An engraving and insulation inspection device characterized by having a piece and a piece.