JPS6221396Y2 - - Google Patents

Description

[Detailed description of the invention] This invention processes the end of a thin rod with high precision.
It relates to a device for inspection, and more specifically, when processing or inspecting the end of a thin rod that moves intermittently at regular intervals, it is characterized by aligning the end of the thin rod immediately before processing. This invention relates to an end face treatment device for thin rods.

In order to process ultra-thin rods such as needles, it is necessary to position each rod one by one and feed them to the processing tool setting position. For this reason, the present applicant invented Japanese Patent Application No. 57-219468, in which a groove wheel 2 having a large number of rod grooves 1 carved on its outer surface is intermittently rotated as shown in FIG. The rods 3 are fed in one after another, and the thin rod 3 in the rod groove 1 is pressed and fixed at the tool setting position by a pressing tool 4, thereby positioning and processing. However, since the positioning mechanism simply supplies the thin rods 3 intermittently at regular intervals, it is inconvenient for accurately processing the end faces of the thin rods.
In other words, when processing the end face of a thin rod with high accuracy, such as center milling, drilling, chamfering, or hole depth inspection, the position of the end face of the thin rod must be the reference point of the tool. It must always be set at a constant position.

In view of the above points, the technology according to the present invention relates to a completely new device that makes it possible to set the end face of a thin rod to be processed at a fixed position from a processing reference point.

To explain one embodiment of the present invention with reference to figures, the second embodiment is as follows.
In the figure, reference numeral 5 denotes a sliding base installed on the side of the groove wheel 2, which intermittently slides back and forth between a fixed distance on the left and right with the same period as the intermittent rotation of the groove wheel 2. A gripping chuck 6 is fixedly attached to the sliding base 5, and a tool 7 such as a hole drill or a depth measuring gauge can be attached to the chuck 6. Further, an L-shaped support rod 8 is pivotally attached to the sliding base 5 by a pin 9 so as to be able to rotate slightly, and a pusher 10 is provided at the tip of the support rod 8 for pressing and positioning the end face of the thin rod 3. The installation is fixed. The distance between the pusher 10 and the tool 7 is set to be the same as the bar groove 1 carved in the groove wheel 2, and the relative distance between the tip of the tool 7 and the tip of the pusher 10 with respect to the end face of the thin rod is Screw the screw 11 and attach the support rod 8.
It is constructed such that it can be adjusted by rotating around a pin 9. In this embodiment, as described above, the tool 7 is fixed and the pusher 10 is movable and adjustable, but the pusher 10 may be fixed and the tool 7 is movable and adjustable. In the figure, reference numeral 12 denotes a screw for preventing the support rod 8 from wobbling due to the spring force of the spring 13.

Next, to explain the case of drilling a hole in a thin rod 3 using the end face processing device A according to the present invention, as shown in FIG. The tip of the drill 7' is thereby projected by a distance l from the tip of the pusher 10, and the device A is installed on the side of the groove wheel 2 so that the tool 7 and the pusher 10 are on the extension line of the rod groove 1. Next, when the groove wheel 2 is intermittently rotated in the direction of the arrow,
The thin rods 3 are inserted one by one into the rod grooves 1 of the groove wheel 2, and are moved with their ends protruding from the rod grooves 1. Although the thin rod 3 has an uneven end surface at this point,
When the device A is operated and the sliding base 5 is reciprocated in the direction of the left and right arrows, the end face of the thin rod is pressed from the side by the presser metal 10 just before a hole is drilled by the drill 7', and the drill 7' In the advanced state, it is aligned at a position protruding a distance l from the tip of the drill.
Therefore, a hole with a depth l is accurately drilled in the end face of the thin rod 3 positioned by the pusher 10 by the drill 7'.

In addition, when using this device A to measure and inspect the depth of a hole drilled in the end face of the thin rod 3, the tip is made to protrude a predetermined length from the tip of the presser metal 10 as shown in FIG. 4, for example. A measuring gauge 7'' is attached to the chuck 6, and when a force is applied to the measuring gauge 7'', the chuck supporting part 14 moves back against the spring 15, and a limit switch 16 provided at the rear of the supporting part 14 is activated to maintain a constant value. Configure it to emit a signal. In this case as well, the end face of the thin rod 3 is accurately positioned by the pusher 10, so when the depth of the hole drilled in the end face of the thin rod is shallower than the set value, the sliding base 5 moves forward. When the gauge 7'' is inserted into the hole, a force is applied to the tip of the gauge, which activates the limit switch 16, thereby automatically detecting a thin rod whose hole depth is less than the set value. .

The pusher 10 of the device A according to the present invention has wear resistance because it comes into frequent contact with the end face of the thin rod 3 as described above, and when the thin rod 3 is made of iron, it is made of non-magnetic material such as ceramic. It is preferable to use materials such as

As described above, the thin rod end face processing device according to the present invention applies a tool to the thin rod that is intermittently moved at equal intervals by a groove wheel with rod grooves, on the extension line of the processing groove of the groove wheel. In addition, a pusher for positioning the rod end face is provided on the extension line of the groove just before the machined groove, and these are integrated by a sliding base and configured to slide back and forth in synchronization with the movement of the thin rod. With a simple structure, the end face of the thin rod can be automatically positioned, the end of the thin rod can be processed and measured with high accuracy according to the positioning, and the relative relationship between the tip of the tool and the tip of the pusher can be adjusted. Since the distance can be adjusted, the amount of processing and the amount of detection at the end of the thin rod can be adjusted freely with simple operations.

[Brief explanation of the drawing]

Fig. 1 is an explanatory diagram of a groove wheel, Fig. 2 is an explanatory diagram of the device of the present invention, Fig. 3 is an explanatory diagram of the case of drilling a hole with the device of the present invention, and Fig. 4 is an explanatory diagram of the depth of a hole made by the device of the present invention. It is an explanatory view when inspecting. 1 is a rod groove, 2 is a groove wheel, 3 is a thin rod, 5 is a sliding base, 10 is a pusher, and 11 and 12 are screws.

Claims (1)

[Scope of utility model registration request] In a device that positions and processes the end face of a thin rod 3 that moves intermittently at regular intervals,
A thin rod end face processing tool 7 is mounted on a sliding base 5 that can reciprocate in the axial direction of the thin rod 3 in synchronization with the movement of the thin rod 3.
At the same time, a pusher 10 for positioning the end face of the thin rod is attached adjacent to the tool 7, and the relative position in the axial direction of the thin rod 3 between the tip of the tool 7 and the tip of the pusher 10 can be adjusted. 7 is arranged on the axial extension line of a predetermined thin rod 3, and a pusher 10 is arranged on the axial extension line of the thin rod 3 in front of the thin rod 3.