JP3185182B2 - Machining inspection equipment for shaft workpieces - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a machining inspection device for inspecting whether or not a shaft workpiece such as a crankshaft is properly machined.

[0002]

2. Description of the Related Art In the case of processing a spindle work with a machine tool such as a machining center, defective products such as unprocessed products may be mixed into properly processed non-defective products. For example, in a machining process of a crankshaft of an automobile engine, when a machining center for machining a journal or the like of a crankshaft detects a machining dimensional defect and stops automatically, an operator takes out the crankshaft from the machining center and removes a part to be machined. Is measured, and if the machining is defective, the crankshaft is removed from the machining process. At this time, the unprocessed crankshaft gets mixed into the processed crankshaft due to an operator's mistake in input, etc.
In some cases, it is paid out to the post-process together with the processed crankshaft.

[0003] Further, there is a case where a chip is bitten on a table moving surface or the like of a machine tool and a crankshaft whose shaft is eccentrically processed due to a deviation of a processing reference is paid out to a subsequent process. If such a poorly processed crankshaft is paid out to a post-process, an assembly failure occurs when assembling the engine, which not only causes a decrease in the operation rate of the equipment, but also reduces the assembled parts. Since it is necessary to disassemble and remove the poorly processed crankshaft, replace it with a crankshaft of good processing, and then reassemble, the work load of the operator in the post-process was extremely large. Therefore, when paying out the processed crankshaft to a post-process or in a post-process, a sampling inspection of the crankshaft is performed. However, such a sampling inspection is troublesome, and the mixing ratio of defective processing as described above is extremely small, and in many cases, it cannot be found even by performing the sampling inspection.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to reduce the amount of a shaft work to be paid out to a post-process in a shaft work such as a crankshaft. It is an object of the present invention to obtain a shaft workpiece inspection and processing apparatus having a simple configuration that enables unremoved spindle workpieces and eccentrically processed spindle workpieces to be surely removed from a machining process by inspecting the workpiece one by one. .

[0005]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, an apparatus for inspecting the machining of a shaft work according to the present invention comprises a shaft part.
A pair of rotating rollers provided on a transfer device for aligning and transferring a shaft work having a flange portion concentric with the shaft portion of the shaft member and arranged at predetermined intervals, and rotatably holding the pair of rotating rollers. together it consists of a holding part that can be swung in a plane perpendicular to the axis of the rotating rollers, the pair
Axial inspection unit and flange inspection on the circumferential surface of the rotating roller
Each of which has an axis inspection unit of the one rotating roller and the
The minimum distance between the other rotating roller and the shaft inspection part is properly processed.
The diameter or width dimension of the shaft portion and the one
Flange inspection part of the rotating roller and the other rotating roller
The minimum distance with the flange inspection part of the above was properly machined
Equal to the diameter or width of the flange, the shaft and
When the flange part is properly machined, the shaft part
And the flange part is between the shaft inspection part and the flange.
It is characterized by being able to pass between the inspection units .

[0006]

Since the present invention is constructed as described above, it operates as follows. The shaft workpiece is transported on the transport device and inspected one by one by the processing inspection device.
The processed portion of the shaft workpiece that has been properly processed passes between two rotating rollers and is transported to a subsequent process. At this time, since the holding portion for attaching the rotating roller is attached to the swingable arm, the rotating roller swings according to the posture of the conveyed shaft work, so that the processed portion of the shaft work is smooth. Can pass between the rotating rollers. If the processed part of the shaft workpiece is unprocessed or is processed eccentrically, the processed part cannot contact the inspection unit and pass between the two rotating rollers, and therefore, the shaft workpiece is not processed. The work stops on the transfer device. Therefore, by removing the shaft work stopped on the transfer device, it is possible to prevent the shaft work with defective machining from being paid out in the subsequent process.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic view of an apparatus for processing and inspecting a shaft work according to the present invention, FIG. 2 is a view taken in the direction of the arrow X in FIG. 1, FIG. 3 is a schematic view illustrating the operation of the present invention, and FIG. FIG. 3B is a diagram showing a machining inspection state when the shaft portion 16 is properly machined, and FIG. 3B is a diagram showing a machining inspection state when the shaft portion 16 is machined eccentrically with respect to the flange portion 15. It is. In this embodiment, the machining inspection apparatus 10 for a shaft work is a crankshaft 1 which is a shaft work.
Flange 15 formed on the journal and having a parallel surface
And a shaft 1 extending from the flange 15
6 is inspected as to whether or not it is processed and formed concentrically. The flange portion 1 which is a portion to be processed
The crankshaft 1 in which the shaft 5 and the shaft 16 are machined is
The belt 3 is conveyed on the conveying device 2 from the direction indicated by the arrow Y in FIG. Guides 6a and 6b are provided on both sides of the transfer device 2 along the transfer path to restrict the conveyed crankshaft 1 from moving in both directions.

The machining inspection apparatus 10 for a shaft work is provided in the middle of the conveying path of the conveying device 2 by cutting out a part of the guide 6b.
And an arm 11 swingably mounted via the shaft 5 and legs 12a and 12b of the same length extending from the tip of the arm 11 to the transfer device 2 side, and have a U-shaped holding in side view. It comprises a portion 12 and rotating rollers 13, 13 made up of roller bearings and the like rotatably supported at the tips of the legs 12 a, 12 b by mounting bolts 14, 14.

On the outer peripheral surface of the rotating rollers 13, 13,
Inspection units 17 and 18 for inspecting whether or not the shaft 16 and the flange 15 have been machined are each formed in a stepped manner. Then, the inspection units 17 and 18
Is the inspection unit 1 formed on both rotating rollers 13, 13.
Diameter dimension A of the shaft portion 16 which distance is processed to suitability between 8 and 18 to be equal to (see FIG. 3 (a)), also the distance between the measurement part 17, 17 is machined to suitability The flange portion 15 is formed so as to have a width dimension B (see FIG. 3A). According to this aspect, if the shaft portion 16 and the flange portion 15 are unprocessed, these processed portions come into contact with the inspection portions 18, 18 and the inspection portions 17 , 17 and cannot pass between the rotating rollers 13, 13. It has become.

Next, the operation of the present invention will be described with reference to FIG. Crankshaft 1 transported on transport device 2
Shaft portion 16 and flange portion 15 abut on inspection portions 17 and 18 of rotating roller 13. At this time, the arm 11 swings up and down with the shaft 5 as a fulcrum according to the posture of the crankshaft 1 being conveyed, and the shaft 16 and the flange 15 are guided between the rotating rollers 13. . If the processing of the flange portion 15 and the shaft portion 16 is properly performed, the flange portion 15 and the shaft portion 16 will pass between the inspection portions 17 and 17 and between the inspection portions 18 and 18 as shown in FIG.
(a) It can pass in the direction shown by the middle arrow. Shaft 1
If either one of the flange 6 and the flange 15 is unprocessed, it cannot pass between the inspection sections 17 and 17 or between the inspection sections 18 and 18, so that the crankshaft 1 stops on the transfer device 2. Will be.

Further, as shown in FIG. 3B, even when the shaft 16 is formed eccentrically with respect to the flange 15, the shaft 16 comes into contact with the inspection portion 18 of the rotating roller 13 so as to contact the inspection portion 18. The passage cannot pass between the inspection sections 18, 18, and the crankshaft 1 stops on the transfer device 2 as described above. When the conveyance of the crankshaft 1 is stopped, the stop of the conveyance is detected by a sensor (not shown) or the like, and the worker can be notified by a buzzer or a display.

Although a preferred embodiment of the present invention has been described in detail, the present invention is not limited to this embodiment. For example, in the above embodiment, the inspection units 17 and 18
Has been described as grinding on the surface of the rotating roller 13, but a plurality of rotating rollers having different diameters may be combined and the circumferential surface of the rotating roller may be configured as an inspection unit. Further, in the above-described embodiment, the description has been made assuming that the processed portion of the crankshaft 1 is inspected. However, it goes without saying that the present invention can be applied not only to the crankshaft but also to other shaft workpieces.

[0013]

As described above, the present invention has the following advantages. By inspecting the total number of shaft workpieces that are paid out to the post-process on the transfer device, it is possible to reliably detect the defective shaft work and stop it on the transfer device to remove the defective shaft work. This eliminates the need for a sampling inspection and makes it possible to reliably detect defective products. Therefore, troubles such as improper assembly in the post-process due to the incorporation of defective processing products are eliminated, the work load of the operator in the post-process is greatly reduced, and the operation rate of the equipment can be improved. Also,
The inspection apparatus of the present invention can be manufactured at a low cost because its configuration is extremely simple.

[Brief description of the drawings]

FIG. 1 is a schematic explanatory view of a processing inspection apparatus for a shaft workpiece according to the present invention.

FIG. 2 is a view in the direction of the arrow X in FIG. 1;

3A and 3B are schematic views illustrating the operation of the present invention. FIG. 3A is a diagram showing a machining inspection state when a flange portion and a shaft portion are properly machined, and FIG. It is a figure which shows the processing inspection state when a shaft part is processed eccentrically with respect to FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Crankshaft (shaft work) 2 Conveying device 3 Belt 4 Bracket 5 Shaft 6a, 6b Guide 10 Shaft work inspection processing device 11 Arm 12 Holder 13 Rotary roller 14 Mounting bolt 15 Shaft (working part) 16 Flange (Processed part) 17, 18 Inspection unit

Claims (1)

(57) [Claims] A shaft portion and a flange portion concentric with the shaft portion;
A machining inspection device for a spindle work for inspecting whether or not a portion to be machined of a shaft workpiece to be machined is properly machined, provided on a transport device that aligns and transports the spindle workpiece, and is provided with a predetermined interval. and a pair of rotary rollers which are disposed, wherein become a pair of rotating rollers and a holding portion which can be swung in a plane perpendicular to the axis of the rotary roller while rotatably holding, of the pair of rotary rollers On the circumferential surface, check the shaft
Each of the rotating rollers has a shaft inspection section and the other rotation roller has an axis inspection section.
The shaft part whose minimum distance with the shaft inspection part of the la is properly machined
Equal to the diameter or width dimension of the one rotating roller
Flange inspection part and flange inspection of the other rotating roller
The diameter of the flange part where the minimum distance to the part is properly machined
Or equal to the width dimension, the shaft part and the flange part
If the shaft and the flange are properly machined,
Between the shaft inspection section and the flange inspection section.
A machining inspection device for shaft workpieces , which is capable of passing through .