JPS59163034A - Caulking device - Google Patents

Abstract

PURPOSE:To display automatically and surely the adequateness of a caulking condition in the stage of caulking a cylindrical member to a shaft by measuring the number of revolution of the shaft by using a photoelectric switch and a light shielding plate. CONSTITUTION:A piston 7 is fitted onto a prescribed position of a rack 1, and is held in a working position by means of a headstock 3 and a center 5. The caulking device 10 is pressed to the flange 7a of the piston 7 and pinch roller 20 of a cauking detector M is pressed to the piston 7. A rack 1 is rotated by the headstock 3 and the roller 9 is fed by a cylinder 11 to deform gradually the flange 7a, thereby caulking the flange to the rack 1. The roller 20 contacts rollingly via a rubber roller 21 with the piston 7 rotating together with the rack 1 without sliding with said piston. A photoelectric switch 26 is intermittently interrupted by as much as the number of revolution of the rack 1 by a light shielding plate 25 attached to the roller 20.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a crimping device for a cylindrical member. The present invention relates to a device equipped with a caulking detection device that detects caulking.

An example of conventional caulking is shown in Figures 1 and 2.
In the figure, everything except the caulking detection device M and the measurement control panel N was generally unusable.

Reference numeral 1 denotes a rack of a washer steering wheel 1, which serves as a shaft, and one end of which is held by a chucking on the headstock 3 of the rotary drive section 2 of the metal/mechanical device.

The other end is pressed toward the headstock 3 by the center 5 of the tailstock 4 of the caulking device 6, and the center 5 of the tailstock 4 of the caulking device 6
is held in the machining position by

Reference numeral 6 denotes a tube clamp that supports the vicinity of the center of the rack 1.

7 is the circle f that WCMa came to rack 1 through 8 O rings
A piston as an M Rs material, 9 a crimping roller of a crimping device 10, and a fluid pressure cylinder 11 (hereinafter referred to as -E).

flange of piston 7 by cylinder 11)?
While pressing a'r, as the rack rotates 10 times, the entire circumference of the flange 7a is caulked and fixed into the groove (1a) of the screw 1.

However, in such a conventional σ) six crimped loading port, in order to check whether the flange 7a is crimped, it is necessary to
It is inconvenient to visually check the work name after removing the rack T crimping unit after crimping, and if the piston and crimping roller are idling, it is difficult to judge the crimping condition by visual inspection alone. Therefore, there was a problem in that extra man-hours were required for the confirmation.

The present invention has been made by focusing on such conventional problems, and includes a crimping machine for fixing a cylindrical member to a shaft, and a support base fixed to a rod that is provided so as to be able to approach and separate from the cylindrical member. , consisting of a pinch roller rotatably fitted to a fixed shaft fixed to the support base, and a photoelectric switch attached to the support base such that the light beam is blocked by a light shielding plate fixed to the pinch roller. It is an object of the present invention to solve the above-mentioned problems by providing a crimping device that is characterized by being equipped with all the crimping detection devices.

The present invention will be explained below based on the drawings.

1 to 3 are diagrams showing one embodiment of the present invention, but the parts common to the conventional example have already been described in detail in the description of the conventional example, so a redundant explanation will be omitted.

First, to explain the structure, reference numeral 20 is a pinch roller with 21 rubber rollers fixed to the outer periphery, and is fixed via a ball bearing 22.
The fixed shaft 23 is rotatably fitted into the support base 24 so as not to rotate. 25 is a light shielding plate attached to the end of the pinch roller 20, which rotates together with the pinch roller 20 to block the light IvIli! of the photoelectric switch 26 attached to the support base 24! It is designed to be cut off intermittently.

M is a caulking detection device composed of the above-mentioned parts, which is attached to the lot 28 of the fluid pressure cylinder 27 for measurement. The friction allows them to roll into contact with each other without slipping.

N receives a detection signal of the state of engagement between the light-shielding plate 25 and the photoelectric switch 26, determines and displays the crimping state, and controls the crimping device.

Next, the function will be explained.

The rack 1, in which the seven pistons 7 are fitted in predetermined positions via the O-rings 8, is held at the processing position by the headstock 3 and the center 5, as already detailed in the conventional example.

Next, the cylinder 11 moves the crimping device 10 to the rack 1.
The crimping roller 9 is brought into contact with the flange 7a of the piston 7. On the other hand, the crimping detection device M is moved forward toward the rack 1 by the fluid pressure cylinder 27, and the pinch roller 20 is brought into contact with the piston 7 (see FIG. 2).

Next, when the rack 1 is rotated by the headstock 3 and feed is applied to the crimping roller 9 by the cylinder 11, the flange 7a is gradually deformed and crimped onto the rack 1.

On the other hand, the pinch roller 20 in contact with the piston 7 is brought into rolling contact with the piston 7 rotating together with the piston 7 by the rubber roller 21 without slipping, so that the light shielding plate 25 fixed to the pinch roller 20 is synchronized with the rotation of the piston 7. and rotate.

The number of rotations of the rack 1 to achieve a sufficient crimping state k4 in relation to the amount of feed of the crimping roller 9 is experimentally determined in advance, and the number of times the photoelectric switch 26 of the light shielding plate 25 blocks the light rays corresponds to the number of rotations. is sent as a signal to the measurement control panel N, and the caulking state is determined and displayed.

At this time, if the piston 7 idles or slides relative to the rack 1, the rotation of the pinch roller 20 also stagnates like the piston 7, and therefore the number of times the light #ilR is cut off does not reach the predetermined number of times of the light shielding plate 25. It is sent to panel N, and as a result, it is determined that the caulking is defective and is displayed.

As explained above, according to the present invention, in a crimping machine that attaches a cylindrical member to a shaft, the cylindrical part and the material are installed in a lot with 1δj. The light rays are blocked by the added support base, a pinch roller that is rotatably fitted onto a fixed shaft fixed to the support base, and a light shielding plate attached to the pinch roller. A caulking system characterized by having a caulking/explosion device consisting of an attached photoelectric switch [- Because the condition of caulking is automatically and reliably displayed, there is no misidentification of defective products. This has the effect of eliminating the need for removing the rack from the crimping device and checking visually or by other means whether the crimping is good or bad.

[Brief explanation of drawings]

Fig. 1 is a schematic side view of the piston crimping device t [, Fig. 2 is an enlarged view of the main parts with a partial cross section of the piston crimping device according to the present invention, and Fig. 3 is an enlarged perspective view of the pinch roller according to the present invention. It is. 1...Shaft (rack) 1...
... Cylindrical member (piston) 20 ... Pinch roller 23 ... Fixed shaft 24 ... Support stand 25 ... Light shielding plate 26 ... ...Photoelectric switch 28... Rod M... Caulking detection device

Claims (1)

[Scope of Claims] A caulking machine in which a cylindrical member is completely fixed to a shaft, a support base fixed to a rond provided so as to be able to approach and separate from the cylindrical member, and a fixed shaft fixed to the support base so as to be rotatable. With the fitted pinch roller. A crimping device comprising a crimping detection device comprising a light shielding plate fixed to the pinch roller (and a photoelectric switch attached to the support base so as to block light rays).