JP2000024831A - Workpiece outline machining device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To form the outer peripheral part of a workpiece into an objective shape with accuracy without applying an instantaneous overload to the workpiece at the time of manufacturing a platelike insert workpiece used for insert- molding a block of a belt used for a belt-type continuously variable transmission. SOLUTION: A workpiece outline machining device is provided with a broach 10 formed by stacking dies 11a, 11b, 12a, 12b, 17 provided at its inner periphery with cutting edges 13a, 13b, 14a, 14b, 18 for cutting the outer peripheral part of a workpiece 3, and moving mechanism 19 for moving the workpiece 3 so that the outer peripheral part of the workpiece 3 is cut in order by the respective cutting edges 13a, 13b, 14a, 14b, 18 of the broach 10. The cutting edges 13a, 13b, 14a, 14b, 18 are provided to cut the outer peripheral part of the workpiece 3 gradually into objective shape toward the moving direction of the workpiece 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a work for forming an outer peripheral portion of a predetermined shape when manufacturing a work such as an insert work of an insert molding block used for a belt of a belt type continuously variable transmission of an automobile. The present invention relates to an outline processing device.

[0002]

2. Description of the Related Art For example, a power transmission belt used for a belt-type continuously variable transmission of an automobile generally has a large number of resin blocks fixed and fixed at equal pitches in the belt length direction in a pair of tension bands on both sides. Since a high load is applied to this belt, each block is obtained by insert molding using a plate-shaped insert work made of an aluminum alloy.

[0003] The above-mentioned insert work is a precision part that requires precision and surface roughness on the order of microns on the outer dimensions. Conventionally, the press work is mainly performed by press punching (shaving method).
It is manufactured by.

[0004]

However, when the outer shape of the insert work is processed by press working as in the above-mentioned conventional technique, an excessive load is instantaneously applied to the insert work, so that the work "whether""Burr",
Or, "warping" is likely to occur, and there is a difficulty in processing accuracy in practical use.

The present invention has been made in view of the above points, and a main object of the present invention is to provide a work such as an insert work of an insert molding block used for a belt of a belt type continuously variable transmission as described above. When manufacturing, for example, by applying the broaching technology used for groove processing of splines and the like, it is possible to reduce the load instantaneously applied to the work and to accurately process the outer peripheral portion of the work into a target shape. It is to make.

[0006]

In order to achieve the above object, according to the present invention, a cutting blade of a broach is arranged so as to face an inner peripheral side, and an outer periphery of a plate-like work or a rod-like work is arranged using the broach. The part was cut.

Specifically, according to the first aspect of the present invention,
A broach in which a plurality of cutting blades for cutting the outer peripheral portion of the work are arranged in a stepwise manner along the center line on the inner periphery, and the broach so that the outer peripheral portion of the work is sequentially cut by each cutting blade of the broach. And a moving mechanism for relatively moving the work along the center line of the broach. And
The plurality of cutting blades are provided so as to gradually cut an outer peripheral portion of the work into a target shape in a work moving direction.

In the above arrangement, the work is relatively moved in the work moving direction by the moving mechanism with respect to the broach of the work outer shape processing device, so that the outer peripheral portion of the work is cut into a target shape by the cutting blade of the broach. At this time, the outer peripheral portion of the work is gradually cut into the target shape in the moving direction of the work, so that the cutting allowance by each cutting blade can be reduced, and therefore, the “slope” or “burr”
Is suppressed. Further, when the work is plate-like, the load applied to the work instantaneously becomes small, so that the occurrence of "warping" can be suppressed.

According to a second aspect of the present invention, in the first aspect of the present invention, the broach includes a part cutting die plate and a remaining cutting die plate arranged so as to overlap the part cutting die plate.
It is assumed that a plurality of sets of die plates are stacked.
At this time, the inner periphery of the partial cutting die plate has a cutting blade that cuts a part of the outer peripheral portion of the work, and moves the work in the work moving direction by contacting the outer peripheral portion of the work that is not cut by the cutting blade. And a guide portion for guiding the remaining portion of the outer peripheral portion of the work on an inner periphery of the die plate for remaining portion while providing a guide portion for guiding the movable portion in a direction perpendicular to the workpiece moving direction. And a guide portion that guides the work in the work moving direction by contacting the outer peripheral portion of the work that is not cut by the cutting blade and guides the work immovably in a direction orthogonal to the work moving direction. .

In the above construction, the outer peripheral portion of the work relatively moving in the work moving direction with respect to the broach is gradually cut into a target shape by each cutting blade of the broach. At this time, the broach is formed by laminating a plurality of sets of die plates each including a part cutting die plate for cutting a part of the outer peripheral portion of the work and a remaining cutting die plate for cutting the remaining portion of the outer peripheral portion of the work. Therefore, the outer peripheral portion of the work is appropriately cut.

According to a third aspect of the present invention, in the second aspect of the present invention, when the work has a plate shape, the broach is configured such that the die plates are stacked up and down to allow the work to pass downward. And the moving mechanism has a punch for moving the work by the thickness dimension in the work moving direction each time the work is supplied to the work supply position on the broach. Then, a plurality of works are vertically stacked and accommodated on the broach above,
A work accommodating portion capable of sending out the lowermost work from the lower end opening, a supply mechanism for supplying the lowermost work of the work accommodating portion one by one from the lower end opening of the work accommodating portion to the work supply position on the broach; Be prepared to have.

In the above arrangement, the lowermost work in the work accommodating portion is sequentially supplied to the work supply position on the broach one by one by the supply mechanism. Then, each time the work is supplied to the work supply position, the moving mechanism moves the work by the punch in the work moving direction by the thickness dimension. Therefore, the process from the supply of the work to the finish processing to the target shape is automated, and the work outer shape processing can be performed in a short time.

According to a fourth aspect of the present invention, in the first aspect of the present invention, in the case where the work has a plate shape, the broach includes a plurality of die plates each having a cutting blade on an inner periphery thereof. And it is arranged so as to allow the work to pass downward. Then, the moving mechanism punches the work from the work punching plate-shaped body placed on the broach between the uppermost die plate of the broach and at least two places on the outer periphery of the work. It is assumed that a punch for forming a convex for positioning is provided. A plurality of concave portions are provided on the inner periphery of the broach so as to engage with the convex portions of the work and guide the work so as to be movable in the work moving direction and immovable in the horizontal direction. The cutting blade of the die plate at the lowermost stage of the broach is provided so as to cut off the convex portion of the work.

In the above configuration, the work is formed by punching the work from the work punching plate on the broach between the uppermost die plate of the broach and the punch of the moving mechanism. At this time, protrusions are simultaneously formed on at least two places on the outer peripheral portion of the work. Then, the work is guided by the work moving direction while the movement in the horizontal direction is regulated by engaging the convex portion with the concave portion of the inner periphery of the broach, and the outer peripheral portion is sequentially cut by the cutting blade of each die plate, and thereafter, The protrusion is removed by the cutting blade of the die plate at the lowermost stage of the broach.

According to a fifth aspect of the present invention, in the above-mentioned second to fourth aspects, an oil supply mechanism for supplying cutting oil to a work passing through the broach in the work moving direction is provided. Further, a discharge passage for discharging the cutting oil supplied from the oil supply mechanism to the outside of the broach together with the chips of the work is provided between the die plates adjacent to the broach.

In the above configuration, when the work passes through the broach in the moving direction of the work, lubricating oil is supplied to the work by an oil supply mechanism. Chips generated when the outer peripheral portion of the work is cut by the cutting blade of each die plate of the broach are discharged out of the broach via the discharge passage between the adjacent die plates together with the lubricating oil.

[0017]

Embodiments of the present invention will be described below with reference to the drawings. (Embodiment 1) FIGS. 1 to 3 show the entire configuration of a workpiece contour processing apparatus according to Embodiment 1 of the present invention. As shown in FIG. The blocks 2, 2,... Of the belt type continuously variable transmission, in which a large number of blocks 2, 2,. In this case, it is used to form plate-shaped insert works 3, 3,... As works made of an aluminum alloy.

As shown in FIG. 5, the above-mentioned block 2 extends in the belt width direction (left-right direction in FIG. 5) and is disposed on the back side of the belt (upper side in FIG. 5);
A lower beam portion 2b, which is arranged on the inner surface side of the belt (the lower surface side in the figure) and is shorter than the upper beam portion 2a, and a lower beam portion 2a and a lower beam portion 2b which are shorter than the upper beam portion 2a. And a pillar portion 2c connected in the belt thickness direction (vertical direction in the figure).
The tension bands 1 and 1 are fitted into slit-like fitting portions 2d and 2d formed on both sides in the belt width direction between the belts a and 2b. The block 2 is insert-molded in a substantially H-shape in which substantially the entire surface of the insert work 3 is covered with a molding material 4 such as phenol resin. Each dimension of each insert work 3 in the belt width direction and the belt thickness direction is about 26 mm and about 12 mm, respectively, and the dimension in the belt length direction is about 2 mm.

The above-mentioned work outer shape machining apparatus has a cutting blade 13a, 13b, 14a, which cuts the outer periphery of the work 3 on the inner periphery.
Die plates 11a, 11 provided with 14b, 18 respectively
b, 12a, 12b, and 17 are stacked in five layers vertically, and the broach 10 is arranged so as to pass the insert work 3 downward, and the cutting blades 13a, 13b, 14a, and A punch 1 for moving the work 3 along the center line of the broach 10 so that the outer periphery of the insert work 3 is cut in order by 14b and 18
And a moving mechanism 19 having a cutting blade 13a.
a, 13b, 14a, 14b, and 18 are provided so as to gradually cut the outer peripheral portion of the insert work 3 into a target shape in the work moving direction. Each time the insert work 3 is supplied to the work supply position on the broach 10, the punch 19 a of the moving mechanism 19
Is repeatedly pressed and moved by the thickness dimension in the work moving direction.

The work outer shape machining apparatus includes a work accommodating portion 20 disposed on the broach 10 and having a lower end opening for accommodating a plurality of insert works 3, 3,. A supply mechanism 21 for supplying the lowermost insert work 3 of the storage section 20 from the lower end opening of the work storage section 20 to the work supply position is provided. At this time, the supply mechanism 21 has a pressing member 21 a that presses the lowermost insert work 3 of the work accommodating section 20 in the horizontal direction.
Each time the insert work 3 is moved downward,
The next insert work 3 is supplied so as to overlap with the upper part.

Further, the work outer shape machining apparatus is provided with an oil supply mechanism 22 for supplying cutting oil to the insert work 3 passing through the broach 10 in the work moving direction. 11b, 11
b, 12a, 12a, 12b and 12b, 17
Discharge passages 23 to 26 for discharging the cutting oil supplied from the oil supply mechanism 22 to the outside of the broach 10 together with the chips of the insert work 3 are provided. Specifically, the oil supply mechanism 22 has an oil supply pipe 22a disposed above the broach 10, and the cutting oil is dropped from the oil supply pipe 22a. Also, the discharge passages 23 to
Reference numeral 26 denotes each die plate 11a, 11b, 12a, 12b
Are respectively arranged on the lower surface of each of them so as to face each other in the radial direction, and are provided so as to extend radially outward.

In this embodiment, the broach 1
0 is a partially cut die plate 1 as shown in FIGS.
1a and 12a, and each of these partial cutting die plates 11a and 1a.
Die plates 11b and 12 for cutting the remaining parts arranged on top of 2a
b and one set of die plates 11a, 11b and 12
a and 12b, and a finishing die plate 17 having a cutting blade 18 for finishing, which is located at the lowermost stage of the broach 10.

At this time, the partial cutting die plate 11a,
On the inner periphery of 12a, cutting blades 13a and 14a for cutting a part of the outer peripheral portion of the work, and the insert work 3 can be moved in the work moving direction by contacting the outer peripheral portion of the work that is not cut by the cutting blades 13a and 14a. And guide portions 15a and 16a for immovably guiding the workpiece in a direction orthogonal to the workpiece moving direction.
Is provided. On the other hand, the die plate 11 for cutting the remaining portion is provided.
Cutting blades 13b and 14b for cutting the remaining part of the outer periphery of the work are provided on the inner periphery of the cutting blades 13 and 14b.
A guide portion 15 which guides the insert work 3 in the work moving direction by contacting the outer peripheral portion of the work which is not to be cut, and immovably in the direction perpendicular to the work moving direction.
b, 16b.

More specifically, the partial cutting die plate 11
a, 12a, the cutting blades 13a, 14a
The outer peripheral portions of the workpieces corresponding to the fitting portions 2d, 2d and the outer peripheral portions of the workpieces corresponding to the respective end faces of the upper and lower beam portions 2a, 2b are provided so as to be cut, respectively, while the guide portions 15a, 16a are provided. A workpiece outer peripheral portion corresponding to the belt rear side at a central portion in the belt width direction of the upper beam portion 2a;
The lower beam portion 2b is provided so as to be in contact with the outer peripheral portion of the work corresponding to the inner surface side of the belt at the central portion in the belt width direction.

Further, the die plates 11b, 12
In FIG. 3B, the cutting blades 13b and 14b cut the outer peripheral portion of the work corresponding to the belt rear side of the upper beam portion 2a of the block 2 and the outer peripheral portion of the work corresponding to the inner surface side of the belt of the lower beam portion 2b. On the other hand, the guide portions 13b and 14b are provided so as to contact the outer peripheral portion of the work corresponding to the pillar portion 2c.

Here, the operation of the work outer shape machining apparatus configured as described above will be described. In the above-described workpiece contour processing apparatus, the workpiece 3 on the lowermost layer of the workpiece accommodating section 20 is provided at the workpiece supply position on the broach 10 by the supply mechanism 2.
1 is supplied one by one in order. The insert work 3 supplied to the work supply position is pressed in the work moving direction by the punch 19 a of the moving mechanism 19. At this time, lubricating oil is supplied to the insert work 3 by the oil supply mechanism 22. Then, by moving the inside of the broach 10 in the work moving direction along the center line, the die plate 11 is moved.
a, 11b, 12a, 12b, 17 cutting blades 13a, 1
Insert work 3 by 3b, 14a, 14b, 18
Are sequentially cut. At this time, the outer peripheral portion of the insert work 3 is gradually cut into a desired shape. On the other hand, chips generated by cutting the outer peripheral portion of the work are discharged outside the broach 10 through the discharge passages 23 to 26 together with the lubricating oil.

Therefore, according to the present embodiment, the cutting blades 13a for cutting the outer periphery of the insert work 3 on the inner periphery are provided.
A broach 10 formed by vertically stacking five die plates 11a, 11b, 12a, 12b and 17 provided with 13b, 14a, 14b and 18 and an insert work 3 supplied to a work supply position on the broach 10. And a moving mechanism 19 for moving the workpiece 3 along the center line of the broach 10 so that the outer peripheral portion of the workpiece 3 is sequentially cut by the cutting blades 13a, 13b, 14a, 14b, and 18. The blades 13a, 13b, 14a, 14b, and 18 are provided so as to gradually cut the outer peripheral portion of the insert work 3 into a target shape toward the work moving direction. Burr "can be suppressed from occurring. In addition, insert work 3
To avoid applying an excessive load instantaneously to the workpiece 3
Can be suppressed, and the occurrence of “warpage” in the insert work 3 can be suppressed.

Also, on the broach 10, there is disposed a work housing portion 20 having an opening at the lower end for vertically stacking and housing insert works 3, 3,..., And inserting the lowermost insert work 3 of the work housing portion 20. Since the supply mechanism 21 that supplies the workpieces one by one to the workpiece supply position is provided, the processing from the supply of the insert workpieces 3, 3,... To the finishing can be automatically performed in a short time.

(Embodiment 2) FIGS. 6 and 7 show the entire configuration of a workpiece contouring apparatus according to Embodiment 2 of the present invention, and the same parts as those in Embodiment 2 are denoted by the same reference numerals. Is shown.

The work outer shape machining apparatus has die plates 31, 32, 33 provided with cutting blades 34, 35, 36, 18 for cutting the outer periphery of the work 3 on the inner periphery, similarly to the first embodiment. , 17 are laminated in four stages, and a broach 30 arranged so as to pass the insert work 3 downward, and the cutting blades 34 to 36, 18 of the broach 30, the outer periphery of the insert work 3 And a moving mechanism 37 for moving the work 3 along the center line of the broach 30 so that the portions are cut in order. The cutting blades 34 to 36, 18 move the insert work 3 toward the work moving direction. Are provided so that the outer peripheral portion gradually becomes a target shape.

In this embodiment, the moving mechanism 3
7 is a cutting blade 34 of the uppermost die plate 31 of the broach 30.
And a punch 37a for punching the insert work 3 from the work punching plate 4 placed on the broach 30 and forming protrusions 3a and 3b at two locations on the outer periphery of the work. The inner periphery of the broach 30 has two recesses 30a which engage with the protrusions 3a, 3b of the insert work 3 to guide the work 3 in the work moving direction and not in the horizontal direction. , 30b are provided. Then, the lowermost finishing die plate 1 of the broach 30
7, the cutting blades 18 of the insert work 3
It is provided to cut b.

More specifically, each time the punch 37a of the moving mechanism 37 punches out the insert work 3, the work punching plate 4 on the broach 30 is intermittently moved in the direction of the arrow in FIG. It is being sent to. The upper beam portion 2 of the block 2 is provided on the die plates 31 to 33 other than the punch 37 a of the moving mechanism 37 and the lowermost stage of the broach 30.
The convex portions 3a and 3b are formed on the outer peripheral portion of the work corresponding to the center of the belt width direction on the rear side of the belt a and the outer peripheral portion of the work corresponding to the center of the lower beam portion 2b on the inner surface side of the belt in the belt width direction. It is provided in.

In the present embodiment, the refueling mechanism 38
An oil supply passage that is provided inside each of the die plates 31 to 33 so as to extend in the radial direction, and has one end opening to the side peripheral surface of the die plates 31 to 33 and the other end opening to the lower surface of the die plates 31 to 33. 38a, 38b and 38c, so that each time the insert work 3 moves to the next die plate 32, 33 or 17, oil is supplied. Note that the other parts of the present embodiment are the same as those of the first embodiment, and a description thereof will be omitted.

Next, the operation of the work outer shape machining apparatus configured as described above will be described. In the above-described configuration, the insert workpieces 3, 3,... Are moved from the workpiece punching plate 4 on the broach 30 to the uppermost die plate 31 of the broach 30.
And a punch 37a of the moving mechanism 37. At this time, the insert work 3
The protrusions 3a and 3b are simultaneously formed at two places on the outer peripheral portion of. The insert work 3 pressed in the work moving direction by the moving mechanism 37 engages the protrusions 3a and 3b with the recesses 30a and 30b on the inner periphery of the broach 30 and restricts the movement in the horizontal direction in the work moving direction. And the outer peripheral portion of the insert work 3 is accordingly moved to each die plate 32, 3
Cutting is sequentially performed by 3, 17 cutting blades 35, 36, and 18. At this time, lubricating oil is supplied to the insert work 3 moving to the next die plate 32, 33, 17 by the oil supply mechanism 38 via the oil supply passages 38a to 38c. The chips of the insert work 3 are discharged to the outside of the broach 30 via the respective discharge passages 23 to 26 together with the lubricating oil. Thereafter, the convex portions 3a and 3b are removed by the cutting blade 18 of the lowermost die plate 17 of the broach 30, and the outer peripheral portion of the insert work 3 is finished in a predetermined shape.

Therefore, according to this embodiment, the insert work 3 is punched from the work punching plate 4 between the punch 37a of the moving mechanism 37 and the cutting blade 34 of the uppermost die plate 31 of the broach 30. At the same time, protrusions 3a and 3b are provided at two places on the outer peripheral portion of the work 3 so as to be formed at the same time.
And concave portions 30a and 30b which engage with the convex portions 3a and 3b of the broach 30 so as to guide the work 3 in the work moving direction and not to move in the horizontal direction, and to cut the lowermost die plate 17 of the broach 30. Insert work 3 by blade 18
Since the convex portions 3a and 3b are cut off, the same effect as that of the first embodiment can be obtained also in this embodiment.

In the first and second embodiments, the case where the outer peripheral portion of the plate-shaped insert work 3 is processed into a desired shape has been described. However, the present invention is applicable to the outer shape processing of other types of plate-shaped work. Besides being applicable, it can also be applied to the processing of the outer peripheral portion of a rod-shaped work.

[0037]

As described above, according to the workpiece outer shape machining apparatus of the first aspect of the present invention, there is provided a broach having a plurality of cutting blades arranged on the inner periphery in a stepwise manner along the center line. A moving mechanism for relatively moving the work so that the outer peripheral portion of the work is sequentially cut by each cutting blade of the broach is provided. Since it is provided so as to be gradually cut into a target shape, it is possible to suppress the occurrence of “slump” and “burr” on the work. In addition, when the work is plate-shaped, it is possible to prevent an excessive load from being momentarily applied to the work and to suppress a bending moment applied to the work, thereby preventing "warping" from occurring in the work. Can be prevented.

According to the second aspect of the present invention, the broach includes a part cutting die plate provided with a cutting blade for cutting a part of the outer peripheral part of the work, and a cutting blade for cutting the remaining part of the outer peripheral part of the work. And a plurality of sets of die plates, one set of which is the remaining cutting die plate provided with, are laminated, so that the effect of the first aspect of the present invention can be properly obtained.

According to the third aspect of the present invention, when the work has a plate shape, the broach is arranged so as to pass the work downward, and the moving mechanism is configured to supply the work on the broach. Each time a work is supplied to a position, the work has a punch for moving the work by the thickness dimension in the work moving direction, and a lower end opening for accommodating a plurality of works stacked vertically on the broach. And a supply mechanism for supplying the work in the lowermost layer of the work storage unit one by one to the work supply position, so that the work from the supply of the work to the finish processing is automatically performed in a short time. be able to.

According to the fourth aspect of the present invention, when the work is also plate-shaped, the broach is formed by vertically stacking a plurality of die plates having cutting blades on the inner periphery. While arranging the workpiece so as to pass downward, the moving mechanism punches the workpiece from the workpiece punching plate-shaped body placed on the broach between the uppermost die plate of the broach and the moving mechanism. A punch for simultaneously forming a convex portion in at least two places on the outer peripheral portion of the work is provided, and a plurality of concave portions for engaging the convex portion of the work and guiding the work are provided on the inner periphery of the broach. Since the protruding portion is cut off by the cutting blade of the die plate at the lowermost stage of the broach, according to the present invention, the work from supply of the work to finishing can be automatically performed in a short time. Sending By optimizing, it is possible to greatly reduce the material loss rate than that of the conventional press working.

According to the fifth aspect of the present invention, an oil supply mechanism for supplying cutting oil to a work passing through the broach in the work moving direction is provided, and a space between the die plates adjacent to the broach is provided by the oil supply mechanism. Since the discharge passage for discharging the supplied cutting oil to the outside of the broach together with the chips of the work is provided, the effect of the first aspect of the present invention can be properly obtained.

[Brief description of the drawings]

FIG. 1 is a vertical cross-sectional view schematically illustrating an entire configuration of a work outer shape processing device according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a die plate for partially cutting a broach in the workpiece contour processing apparatus.

FIG. 3 is a plan view showing a die plate for cutting the remaining part of the broach.

FIG. 4 is a perspective view schematically showing a part of a speed change belt of the belt type continuously variable transmission.

FIG. 5 is a plan view schematically showing a block of a speed change belt.

FIG. 6 is a diagram corresponding to FIG. 1, schematically showing the entire configuration of a workpiece contour processing apparatus according to a second embodiment of the present invention.

FIG. 7 is a plan view showing a broach in the workpiece contouring device.

[Explanation of symbols]

Reference Signs List 3 insert work (work) 3a, 3b convex part 4 work punching plate body 10, 30 broach 11a, 12a partial cutting die plate 11b, 12b remaining cutting die plate 13a, 13b, 14a, 14b, 18, 34-36
Cutting blades 15a, 15b, 16a, 16b Guide portion 17 Finishing die plate 19, 37 Moving mechanism 19a, 37a Punch 20 Work accommodating portion 21 Supply mechanism 22, 38 Oil supply mechanism 23-26 Discharge passage 30a, 30b Recess 31-33 Die Board

Claims (5)

[Claims] 1. A broach in which a plurality of cutting blades for cutting an outer peripheral portion of a work on an inner periphery are arranged side by side along a center line, and an outer peripheral portion of the work is formed by each cutting blade of the broach. A moving mechanism for moving the work relative to the broach along the center line of the broach so as to be sequentially cut, wherein the plurality of cutting blades gradually aim at an outer peripheral portion of the work in a work moving direction. A workpiece outer shape processing device provided so as to cut into a shape of a workpiece. 2. The workpiece outer shape machining apparatus according to claim 1, wherein the broach includes a cutting blade for cutting a part of an outer peripheral portion of the work on an inner periphery, and a workpiece that contacts the outer peripheral portion of the work that is not cut by the cutting blade. A partial cutting die plate provided with a guide portion that is movable in the work moving direction and immovable in a direction perpendicular to the work moving direction; and On the inner circumference, a cutting blade for cutting the remaining portion of the outer peripheral portion of the work, and a work that can be moved in the work moving direction by contacting the outer peripheral portion of the work that is not cut by the cutting blade and in a direction orthogonal to the work moving direction. A work outer shape processing apparatus comprising: a plurality of die plates each including a die plate for remaining cutting provided with a guide part for immovably guiding the die; 3. The workpiece external shape processing apparatus according to claim 2, wherein the workpiece has a plate shape, and the broach is arranged such that the respective die plates are vertically stacked and passes the workpiece downward. Has a punch for moving the work by the thickness dimension in the work moving direction each time the work is supplied to the work supply position on the broach, and stores a plurality of works vertically stacked on the broach above And a work storage portion capable of sending out the lowermost work from the lower end opening; and a supply for supplying the lowermost work of the work storage portion one by one from the lower end opening of the work storage portion to the work supply position on the broach. A workpiece outer shape processing device comprising a mechanism. 4. The apparatus according to claim 1, wherein the work has a plate shape, and the broach includes a plurality of die plates each having a cutting blade on an inner periphery thereof, which are vertically stacked. The moving mechanism is arranged to pass the work in a downward direction, and the moving mechanism punches the work from a work punching plate-shaped body placed on the broach between the uppermost die plate of the broach and the moving mechanism. At least 2 on the outer periphery of the work
A punch for forming a positioning convex portion at a location, on the inner periphery of the broach, engaging with the convex portion of the work, guiding the work so as to be movable in the work moving direction and not movable in the horizontal direction. A plurality of concave portions are provided, and a cutting blade of a lowermost die plate of the broach is provided so as to cut off a convex portion of the work. 5. The work contouring apparatus according to claim 2, further comprising an oil supply mechanism for supplying a cutting oil to a work passing through the broach, wherein the oil supply mechanism is provided between adjacent die plates of the broach. And a cutting passage for discharging the cutting oil supplied from the outside of the broach together with the chips of the work.