JPH06238560A - Grinding transferring device - Google Patents

Abstract

PURPOSE:To transfer works in such a way that they do not make contact with each other when a plurality of surfaces of the arc shaped work are ground and prevent the generation of chip, etc., by arranging a work feeding device having a plurality of scrapers, in close to a belt, and installing a grinding wheel on the tension side of the belt. CONSTITUTION:When a plurality of surfaces of a work 1 are grinding-worked by using tuft shaped grinding wheels 2 and 3 in conformity with the shape of the arcuate work, the work 1 supplied by a feeding conveyor 10 is held between the scrapers 6a and 6a which are formed integrally with a belt 6b laid between the driving wheel 6c and the driven wheel 6d of a work feeding device 4 and transported. At this time, the rear edge surface of the work 1 is pushed by the scraper 6a and shift-guided by a guide rail 8, and during this time, the inner R surface and the seat surface of the work 1 are ground by the grinding wheel 2. Then, the work 1 is transported by a work feeding device 5 having the nearly same constitution, and during this time, the outer R surface of the work 1 is ground by a grinding wheel 3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grinding device for efficiently processing a plurality of surfaces of an arc-shaped work. Particularly, it relates to the work feeding mechanism.

[0002]

2. Description of the Related Art When machining a plurality of surfaces of an arc-shaped work 1 (hereinafter simply referred to as a work) as shown in FIG. 7, the outer R surface, the inner R surface, and the seat surface of the work, which are arcuate parts, are formed. Grinding is done using the combined shape grinding wheel. The work feeding method in this case includes the following examples. (1) As disclosed in Japanese Patent Laid-Open No. 60-263668, a plurality of works are sandwiched between two belt conveyors facing each other, and the workpiece is fed by the rotational driving force of the belt conveyor against the grinding resistance force of the grindstone. how to. (2) As disclosed in JP-B-2-38344 and JP-A-64-27845, a plurality of work pieces are mounted on a reciprocating machining jig, and the jig is moved toward a grinding wheel. How to make. (3) As disclosed in Japanese Patent Laid-Open No. 168858/1982, a work is placed one by one on a plurality of processing jigs attached to a circulating conveyor, and is fed toward a grinding wheel. For the processing step, the work is reversed, the work is placed on a plurality of processing jigs attached to the next conveyor, and the work is fed toward the grinding wheel.

[0003]

In the above-described conventional feeding method, in the method (1), the workpieces are fed while the end portions of the workpieces are brought into contact with each other, and at the same time, the workpieces are finely moved in the vertical direction. If the end portion is deformed or burred, a local stress is applied to that portion to cause chipping. Since the work is sandwiched between the belt conveyors and fed, the load applied to the work end face is small, but since the required feeding force is applied to the end face of the work immediately before the grinding wheel, there is no deformation or burr at the work end. If there is, it becomes more likely that chipping will occur.

According to the method (2), since the works are released and placed on the working jig and are fed, the chipping can be eliminated. Since it needs to be handed over, the processing efficiency is extremely reduced. Further, since the work cannot be completely fixed by the method of fixing the work to the jig by suction, the work is likely to drop or drop due to insufficient suction force.

In the method (3), since the work is placed on the jig to be processed, a large number of jigs are positioned and mounted with high accuracy, and the upper, lower, left and right sides of the jig are accurately guided, and the accuracy is improved. Need to maintain. Therefore, it has to be a complicated structure. Further, in order to sequentially process a plurality of surfaces, it is necessary to invert and transfer the work between the conveyors, but the work that is a fired body has large deformation and dimensional variation, and there are irregularities on the end surface, Since it is difficult to synchronize the timing with the conveyor, it has not been put to practical use due to frequent problems.

As described above, the present invention can prevent the occurrence of chipping when sequentially grinding a plurality of surfaces of an arc-shaped work having large variations in deformation and dimensions, and can transfer the work between front and rear processes. It is an object of the present invention to provide a work feeding device of a grinding device that can easily perform the work and efficiently feed the work.

[0007]

SUMMARY OF THE INVENTION According to the present invention, a work feeding device provided with a plurality of scrapers for feeding the works one by one is adjoined to a belt running around, and one of the work feeding devices has a belt tension side and the other side. The belt side of the work feeding device is linearly arranged, and is arranged so as to be connected to the end of the adjacent work feeding device, and a grinding wheel is provided below or above each belt tensioning side, The grinding feeding device is provided with guide rails for guiding the works fed by the scraper in the direction of the grinding wheel along the tension side of each belt, so that the respective work feeding devices run synchronously.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. First, the overall configuration of the present invention will be described. In FIG. 1, 2 and 3 are outer radiuses of the arc-shaped work 1 shown in FIG.
It is a full-scale grindstone that is tailored to each finished shape for grinding the surface, the inner R surface, and the bearing surface. Reference numerals 4 and 5 are work feeding devices. The work feeders 4 and 5 are provided with a plurality of scrapers 6a and 7a for feeding the works 1 one by one on the belts 6b and 7b at regular intervals as shown in FIGS. Further, the belts 6b and 7b are the drive wheels 6
c, 7c and driven wheels 6d, 7d are meshed with each other, and the vehicle is orbited by a drive device (not shown). Work feeding devices 4 and 5
Guide rails 8 and 9 for feeding the work 1 to the grinding wheels 2 and 3 while positioning the work 1 at a predetermined position are provided on the belt tension side. Work feeding devices 4 and 5
And the guide rails 8 and 9 are alternately arranged above or below the grinding wheels 2 and 3 such that some of them overlap with each other, and the respective work feeding devices are synchronized to deliver the work. The work pieces 1 are fed one by one by the scrapers 6a and 7a in a fixed direction along. Reference numeral 10 is a supply conveyor for supplying the work 1.

Next, the operation of the device of the present invention will be described. First, the work 1 is supplied in the direction of the arrow at regular intervals by a supply device (not shown) and the supply conveyor 10.
The scraper 6a attached to the belt 6b of the work feeding device 4 travels in the direction of the arrow at the same speed as the supply conveyor 10 by the driving wheel 6c, the driven wheel 6d and a driving device (not shown). The work 1 supplied by the supply conveyor 10 is pushed by the scraper 6a on the rear end surface thereof and guided by the guide rail 8 to be supplied in the direction of the grinding wheel 2 without contact between the works. When the work 1 passes above the grinding wheel 2 formed into a predetermined shape, the inner R surface and the seat surface of the work 1 are ground into a predetermined shape and dimension. Further, the work is guided by the guide rail 8 and is fed to the next process by the work feeding device 4. As shown in FIGS. 4 and 5, the guide rail 8 is selected to have an optimum structure depending on the processing sequence and the degree of dimensional accuracy after processing.

A work feeding device 5 and a guide rail 9 are provided below the ends of the work feeding device 4 and the guide rail 8 in the work advancing direction, and they are attached to the belt 7b of the work feeding device 5 so as to partially overlap each other. The scraper 7a is running in the direction of the arrow at the same speed as the scraper 6a of the work feeding device 4 by the driving wheel 7c, the driven wheel 7d and a driving device (not shown). The fed work 1 is transferred from the scraper 6a to the scraper 7a, guided by the guide rail 9 and fed in the direction of the grinding wheel 3 without contact between the works. By passing the work 1 below the grinding wheel 3 formed into a predetermined shape, the outer R surface of the work 1 is ground into a predetermined shape and dimension, and further guided by the guide rail 9 to be moved by the work feeding device 5. It is sent to the next process. As shown in FIG. 6, the guide rail 9 has a structure for guiding the surface processed in the previous step.

In the present invention, the grinding wheels, the work feed devices, and the guide rails are arranged in the same number as the required number of processing steps, and as shown in FIG. 1, the work feed devices and the guide rails are provided above and below the grinding whetstone. By alternately arranging the parts so that they overlap each other and making the belt tension side straight, and synchronizing the work feeding devices so that the work is delivered and fed without being inverted, the arc type It is possible to machine multiple surfaces of a workpiece. A link chain may be used instead of the belt.

[0012]

INDUSTRIAL APPLICABILITY The present invention has the following effects in an apparatus for continuously feeding a work when grinding a plurality of surfaces of an arc-shaped work. (1) Since the workpieces are fed one by one without contacting each other, it is possible to prevent chipping caused by contact between the workpieces. (2) Further, the grinding wheels, the work feed devices, and the guide rails are arranged in the same number as the required number of processing steps, and the work feed devices and the guide rails are alternately arranged above or below the grinding whetstone so that a part of each of them overlaps. By arranging and synchronizing each work feeding device and delivering and feeding the work without reversing the work, it is possible to efficiently process multiple surfaces of the arc type work without requiring a complicated work reversing mechanism. it can.

[Brief description of drawings]

FIG. 1 is a front view of a work feeding device according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a scraper mounting portion of the work feeding device 1 of FIG.

FIG. 3 is an enlarged view of a scraper mounting portion of the work feeding device 2 in FIG.

FIG. 4 is an example of a cross-sectional view taken along the line AA of FIG.

5 is an example of a cross-sectional view taken along the line AA of FIG.

6 is a sectional view taken along line BB of FIG.

FIG. 7 is a three-dimensional view of an arc-shaped work.

[Explanation of symbols]

 1 Work 2, 3 Grinding Wheel 4, 5 Work Feed Device 6a, 7a Scraper 6b, 7b Belt 8, 9 Guide Rail

Claims (1)

[Claims] 1. A work feeding device provided with a plurality of scrapers for feeding one work at a time is adjacent to a belt running around, and a belt tensioning side of one work feeding device and a belt tensioning of the other work feeding device. The side is arranged linearly, and is arranged so that the end of the adjacent work feeding device is connected, and a grinding wheel is provided below or above each of the belt tension sides, and along the belt tension side. A grinding feeding device, characterized in that a guide rail for guiding a work fed by the scraper is provided in the direction of the grinding wheel so that the plurality of work feeding devices can run synchronously.