JP3317727B2 - Progressive processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, when performing a process such as punching and bending drawing on a work material, performing each process in a set of devices, and sequentially performing the work material in the next process. The present invention relates to a progressive feeder which feeds at a pitch to perform additional processing and completes the processing in a final process, and in particular, a laminated body formed by sequentially stacking punched pieces having different outer contours and / or punched hole shapes. The present invention relates to a progressive processing apparatus configured to form a workpiece.

[0002]

2. Description of the Related Art Conventionally, when a sheet metal product having a predetermined shape is manufactured by punching, bending, drawing, and forming a sheet material made of a structural material such as a steel sheet, several steps are required. Is normal. When the production quantity of such sheet metal products is large, each step or stage is individually processed in one processing die, and the workpiece is sequentially sent to the next stage to add processing. Then, means for completing the processing in the final stage is employed. Such a processing die is called a progressive die. For example, since one sheet metal product can be obtained for each stamp of the press, there is an advantage that the efficiency is extremely high.

In the above-mentioned conventional progressive die,
In spite of the advantages of high production speed, short delivery time from the input of the work material to the completion of processing, small work in the middle of press working, and the possibility of mass production by small numbers of people, Problems.
That is, since a plurality of pairs of punches and dies are incorporated in one mold, the mold structure becomes extremely complicated, and requires high-precision mold manufacturing technology. Is expensive.

Also, when the mold is partially damaged, repaired, or adjusted, it is necessary to disassemble the entire mold, and these operations are complicated, so that much time and man-hours are required. Furthermore, in the case of small-scale production of many kinds, when the shape and dimensions of the workpieces are slightly different, the use of a dedicated mold is required each time, and the cost of the mold is relatively high. However, there is a problem that it cannot respond to the so-called FMS production system which is increasing.

In order to solve such a problem, the present applicant has already filed an application for a progressive machining apparatus having a simple structure and capable of easily performing a partial adjustment and the like (see, for example, Japanese Patent Application No. 2000-287,197). Hei 2-121760, 2-1
No. 21762). The present invention has been further improved on the premise of these improved inventions.

FIG. 1 is a perspective view of an essential part showing an example of a progressive machining apparatus which is a premise of the present invention. In FIG.
Reference numerals 500 denote processing units, which are arranged on the base 1 at intervals of, for example, 2P (P is the feed pitch of the workpiece) in the feed direction of the workpiece (not shown). Each of these processing units 100 to 500 has one corresponding to a plurality of processing steps.
Although a pair of punches and dies are provided, processing unit 1
00 will be described as an example. Reference numeral 101 denotes a main body, which is formed in a substantially U-shape, and has a dovetail shape at the lower end.
Are integrally formed and can be moved and adjusted in the feed direction of the workpiece by engaging with the dovetail groove 103 provided in the base 1.
In addition, it is formed so as to be able to restrain the movement of the workpiece in the direction perpendicular to the feed direction. 104 is a movement adjusting device, and 105 is a clamp device. Reference numeral 106 denotes a hydraulic cylinder, which is provided at the upper end of the main body 101. A position measuring device 107 is provided on a side surface of the hydraulic cylinder 106.

Reference numeral 108 denotes a cassette which is formed in a substantially U-shape and has a punch or a die (neither is shown) on the upper part.
Are provided so as to be vertically movable, and a punch or a die (not shown) paired with the die is provided at a lower portion, and is detachably provided on the main body 101. The positioning of the cassette 108 is performed by engagement with positioning members 309 and 310 as shown in the processing unit 300. 111 is a clamp screw. That is, the cassette 108 is moved to a positioning member (not shown,
00 (see reference numerals 309, 310).
In addition, a predetermined position can be determined by attaching the clamp screw to the mounting position, and the position can be fixed by tightening the clamp screw 111. After the cassette 108 is fixed, the operating rod (not shown) of the hydraulic cylinder 106 is connected to the vertically movable punch or die.

FIGS. 2A and 2B are explanatory views of a main part showing a processing state of a workpiece. FIG. 2A is a plan view, FIG. 2B is a cross-sectional view, and the same parts are denoted by the same reference numerals as in FIG. Indicated by In FIG. 2, reference numeral 2 denotes a workpiece, which is intermittently fed at a pitch P in the direction of the arrow. That is, in FIG. 1, the pitch between the pair of punches and the dies provided on the cassette 108 (the same applies to other cassettes) is fed. 1 and 2, the processing units 100 to
Reference numeral 500 is formed so as to correspond to the processing step of the pilot hole 3, the processing step of the arc-shaped notch 4, and the first to third drawing steps, respectively.

First, the processing unit 100 is provided with a punch and a die for drilling the pilot hole 3, and the pilot hole 3 is located at a position P on the downstream side in the feed direction of the workpiece 2.
And a guide (not shown) that engages the Therefore, each time the processing unit 100 is operated, the pilot holes 3 are sequentially drilled, and the guides engage with the drilled pilot holes 3 to prevent undesired displacement of the workpiece 2 and improve accuracy. Can be held.

Next, in the processing unit 200, the arc-shaped notch 4 is processed. And the processing unit 30
At 0, the first drawing is performed, a bowl-shaped projection 5 is formed on the workpiece 2, and the arc-shaped notch 4 expands its width to change into an arc-shaped groove 6. Further, in the processing unit 400, the second drawing and the processing of the flange hole 7 are performed, and the height of the protrusion 5 is increased. In the processing unit 500, the third drawing is performed, and the height of the projection 5 is formed to a predetermined size. Thereafter, although not shown, edge cutting and other processes are performed to obtain a predetermined bowl-shaped sheet metal product. Processing units 200 to 500
Also in the above, by providing a guide that engages with the pilot hole 3, it goes without saying that positioning for ensuring predetermined accuracy is performed.

[0011]

According to the progressive machining apparatus having the above-described structure, the structure is simpler than that of the conventional progressive die, and the production is easy. Although it has the advantage of processing, it has the following problems.

That is, the processing units 100 to 100 shown in FIG.
According to 500, the same contour and / or punched hole shape and dimensions can be continuously progressively processed, but punched pieces having different contours and / or punched hole shapes and dimensions can be used. In the case of forming a so-called deformed laminate formed by laminating a plurality of pieces, it cannot be completed by only one progressive processing.

In the case of forming the above-mentioned irregularly shaped laminate, it is necessary to process each punched piece by press working means in advance, and then sequentially stack these punched pieces in a separate step. In addition to an increase in the work in process of the members, there is a problem that the lamination and assembling work becomes extremely complicated, and the cost is inevitably increased.

On the other hand, when the outer contour of the punched piece or member and / or the shape of the punched hole is complicated, or when there are a large number of processing parts, it is advantageous to form the material by the progressive feeding apparatus as described above. When there are many types of punched pieces or members, it is necessary to change the setup of the processing unit each time. Therefore, there is a problem that the time and man-hours for the setup change are increased, the ratio of the so-called main body working time for performing the progressive feeding operation is reduced, and the operation rate is reduced. In this case, there still remains a problem that work in process increases.

Further, in any of the above methods, the lamination and assembling work must be performed separately, and the dimensional accuracy of the laminated body may be reduced depending on how the lamination and assembly standards are taken.

The present invention solves the above-mentioned problems in the prior art, and in particular , performs a series of progressive processing without punching out punched pieces having different outer contour dimensions, for example , without changing the size.
Laminated, and an object thereof is to provide a progressive processing device that can run continuously until the formation of the laminate from the workpiece.

[0017]

In order to achieve the above-mentioned object, the present invention provides a plurality of processing units each including a cassette having a plurality of processing means which is detachably mounted on a main body, and a plurality of processing units. Are arranged at intervals of mP (m is an arbitrary positive integer, P is a feed pitch of the work material) in the feed direction of the work material, and the plurality of processes are performed with respect to the pitch feed of the work material. In a progressive processing apparatus configured to sequentially execute the steps by the plurality of processing units, a plurality of processing units and / or cassettes are provided with independent driving means, respectively, and these driving means are connected to the pitch of the workpiece. The feed unit is formed so as to be selectively drivable via a control means with respect to the feed.
And / or before the final processing unit of the cassette
The first machining in at least one machining unit
For punches and dies that have shapes corresponding to the external contour of the member
Accordingly, the first processing member is punched, and the punching is performed.
The first processed member into the punched hole formed in the workpiece.
With a structure to attach
And has a shape corresponding to the outer contour of the second processing member
Punching and laminating a second workpiece with a punch and a die
Structure and the first
The first processing member is replaced with a die formed on the first processing member.
Combined with the structure of pressing and laminating through the dowel and dowel holes
Equipped to enable selective execution of lamination processing using these two structures
The technical means was adopted to form a laminate composed of multiple types of members.

[0018]

According to the above-mentioned structure, by continuing the progressive feeding without changing the setup up to the processing in the final processing unit, a deformed laminated body composed of a so-called deformed punched member is formed with high efficiency and high efficiency. You can do it.

[0019]

FIG. 3 is an explanatory plan view of an essential part showing an embodiment of the present invention. In the figure, 150 to 550 are processing units, respectively, and the processing units 100 to 500 shown in FIG.
This is the same configuration as. Next, processing units 150 to 550
Are provided with independent hydraulic cylinders 160 to 560, respectively, so that hydraulic oil can be supplied and discharged from the hydraulic circuit 720 through control valves 170 to 570. The control valves 170 to 570 are electrically and controllably connected to the controller 700. 710 is a drive power supply.

FIG. 4 is a cross-sectional front view of an essential part showing an example of the processing unit shown in FIG. However, FIG. 4 shows an embodiment in which the pilot hole and the drilling are simultaneously performed on the workpiece 2. In FIG. 4, reference numeral 11 denotes a punch body, which is formed in a hollow cylindrical shape with a bottom, and has punches 12a, 12b and a pilot pin 12c fixed to the bottom thereof by means such as bonding or caulking.
The punch pad 13 and the pressing member 14 for adjusting the stroke of the pilot pin 12b and the pilot pin 12c are accommodated. A punch head 15 is provided above the pressing member 14, a screw 16 is provided at an intermediate portion, and the male screw 16 is screwed with a screw 17 so as to be provided at an upper end portion of the punch body 11. And punch 12
a, 12b and the pilot pin 12c.

Reference numeral 18 denotes a stripper, which is formed in a hollow cylindrical shape having a bottom and into which the punch body 11 is slidably inserted up and down, and through holes 19a, 19b and 19 are formed in the bottom.
c is formed so that the punches 12a and 12b and the pilot pin 12c respectively penetrate. Reference numeral 20 denotes a sleeve, which is fixed to the upper portion of the cassette 30a (corresponding to the cassette 108 in FIG. 1) via an adhesive, and holds the stripper 18 in a vertically slidable manner. 21,22
Are springs interposed between the stripper 18 and the cassette 30a and between the pressing member 14 and the stripper 18, respectively, and formed so as to urge the stripper 18 and the punch body 11 upward.

Further, the punch body 11 and the stripper 1
8, a part of the outer peripheral surface is cut to form a parallel reference surface 23,
The parallel reference surface 23 is slidably brought into contact with the end surface of the parallel reference plate 24 provided at the upper end of the cassette 30a, so that the rotation of the punch body 11 is restricted. A die 25 has a pilot hole 26 through which the punches 12a and 12b and the pilot pin 12c can enter.
c and through holes 26a and 26b, and is fixed to the lower portion of the cassette 30a so as to face the punches 12a and 12b and the pilot pins 12c.

With the above arrangement, the punch head 1 is driven by an operating rod (both not shown) by, for example, a hydraulic cylinder.
5 is pressed downward, the pilot pin 12c is engaged with the pilot hole 26c to position the workpiece 2, and then the punches 12a, 12b are advanced into the through holes 26a, 26b, whereby the workpiece 2 A predetermined drilling process can be performed.

In this case, since the elasticity of the spring 21 is smaller than the elasticity of the spring 22, the bottom surface of the stripper 18 first comes into contact with the surface of the workpiece 2 and the spring 21 bends. By descending, the spring 22 bends, and the above-described drilling is performed. Punches 12a, 12b
When the operation of the hydraulic cylinder is released after the predetermined stroke lowers, the strippers 1
8 and the punch body 11 rise. In this case, first, the punch body 11 rises, and the punches 12a and 12b are withdrawn from the workpiece 2. Since the stripper 18 presses the workpiece 2 until the punches 12a, 12b are completely removed, it is possible to prevent the workpiece 2 from undesirably moving or jumping up with the removal of the punches 12a, 12b. It is.

FIG. 5 shows an outline in which the dimensions of the outline are substantially the same.
Partial sectional front view showing an example of a deformed laminate having dimensions , FIG.
8 are a view taken in the direction of arrows A, BB and CC in FIG. 5, respectively. 5 to 8,
The deformed laminate 30 includes, for example, three types of members 31, 3 respectively.
The two members 33 are sequentially laminated to form an integrated body. The adjacent members are positioned by engagement of the four dowels 34 and the dowel holes 35, and the relative movement is restricted.
The outer contours of the members 31, 32, 33 are circles or arcs of the same diameter, and the members 32, 33
Is provided. Reference numeral 37 denotes a through hole provided in the center portion, and reference numerals 38 and 39 denote through holes provided near the outer periphery.

FIGS. 9A and 9B are explanatory views showing an example of a punch and die set constituting a processing unit for processing the deformed laminate shown in FIG. 5, wherein FIG. ) Indicates the plane of the die. The vertical section of the main part shown by (a)
3B shows a vertical cross section along a chain line. In FIG. 9, circled numbers are processing step names, corresponding to the processing units 150 to 550, and five processing units are provided at an installation pitch nP (n is an arbitrary positive integer, P is a feed pitch of a workpiece). The workpieces are arranged in the feed direction, for example, from right to left in the order of processing steps. The punch and die set shown in FIG. 9 has the same configuration as that shown in FIG. 4, for example, and the punch body 51, stripper 52 and die 53, which are common components, are only those corresponding to the first processing step. The reference numerals are used, and those after the second processing step are omitted.

First, in the processing unit of the first processing step, the punch body 51 has a punch 54 for forming a pilot hole, a punch 55 for forming a dowel, and a through hole 37 at the center.
(See FIGS. 6 to 8) A processing punch 56 and a pilot pin 57 are provided so as to pass through the stripper 52. The pitch between the pilot hole forming punch 54 and the pilot pin 57 is the feed pitch P of the workpiece.
To match.

On the other hand, the die 53 has the punches 54, 5
5, 56 and the pilot pin 57 are provided with through holes 54a, 55a, 56a, 57a.
4, 56 and a pilot pin 57 are formed so as to be able to enter respectively. A pin 59 urged upward by a spring 58 is interposed in the through hole 55a so as to be vertically movable. In this case, the penetration depth of the punch 55 into the workpiece (not shown) is formed to be smaller than the thickness dimension of the workpiece, and the dowel 34 and the dowel hole 35 shown in FIG. 5 can be formed. It is configured as follows.

Next, in the second machining step, a punch 60 for machining the through-hole 39 (see FIG. 8), a punch 61 for machining the notch 36 (see FIG. 8) and a pilot 61 are formed in the punch body 51. A pin 57 is provided. On the other hand die 5
3 includes the punches 60 and 61 and the pilot pin 57.
Are provided at positions opposed to the holes 60a, 61a, and 57a, and the punches 60, 61 and the pilot pin 57 are formed so as to be able to enter.

In the third processing step, the second processing step
Punch 62 at 90 ° rotated position
(For processing the through hole 38 near the outer periphery in FIG. 7) and a punch (not shown, for processing the notch 36 in FIG. 7). On the other hand, the die 53 is provided with through holes 62a and 63a through which the punch 62 and a punch (not shown) can enter. The pilot pin 57 and the through hole 57a are
It is the same as that of the processing step.

In the fourth processing step, the punch 6
4 and a through hole 64a into which the punch 64 can enter (FIG. 5).
(For drilling a through dowel hole of the lowermost layer of the member 31)
Is provided. The pilot pin 57 and the through hole 57a
This is the same as in the second and third processing steps.

Next, in the fifth processing step, a punch 65 and a through hole 65a through which the punch 65 can enter.
(For punching the outer peripheral contours of the members 31, 32, 33 in FIGS. 6 to 8). The through hole 65a is formed to have the same diameter at least between the surface of the die 53 and a depth corresponding to the height of the odd-shaped laminate 30. The pilot pin 57 and the through hole 57a are the same as those in the second to fourth processing steps.

With the above arrangement, the workpiece is pitch-fed sequentially from the first processing step to the fifth processing step,
By selectively driving the punch / die set in the processing step to the fourth processing step by the controller 700 shown in FIG. 3, the deformed laminate 30 shown in FIG. 5 is sequentially processed and formed by progressive processing. You can do it.

[0034]

[Table 1]

Table 1 shows the respective processing steps or the selective driving state of the punch / die set when the deformed laminate 30 shown in FIG. Controller 700 shown in FIG.
Incorporated in. In Table 1, a circle indicates a processing step that is selectively driven, and a negative sign indicates that the processing step is not driven.

With reference to Table 1, an explanation will be given of the mode of progressive feeding and lamination molding of the odd-shaped laminate 30 with reference to FIGS. First, the workpiece is pitch-fed and the first
In the processing step, the lowermost layer of the member 31 is positioned so that at least the tip of the workpiece is located between the punches 54 and 55, and the pilot hole is processed. Next, when the workpiece is fed by the pitch P and the first machining step is performed, the pilot pin 57 is engaged with the pilot hole to perform positioning, and the punches 54, 55, 5
By 6, doweling (working of dowels 34 and dowel holes 35), through hole 37 and pilot hole working for the lowermost layer of the member 31 are performed. The above-described processing is sequentially performed on the second and third members 31 by further feeding the pitch.

Further, the above-described processing corresponding to the members 33, 32 and the upper member 31 is performed by successive pitch feeding of the workpiece. During this time, the second and third processing steps are not performed for the lowermost layer of the leading member 31 due to the pitch feed, and the punch 64 is not moved in the fourth processing step.
As a result, the dowel hole 35 is punched, and in a fifth processing step, the punch 65 punches the outer peripheral contour. After the processing, it is pushed into the through hole 65a of the die 53. Note that the second and third members 31 are punched by the punch 65 in the fifth step without punching the dowel hole 35, and
It is sequentially pushed into the through hole 65a.

The dowels 34 are engaged with the dowel holes 35 by being pushed into the through holes 65a by the bunch 65, and are sequentially laminated and integrated. That is, since the inner diameter of the through hole 65a is formed to have the same diameter as the outer peripheral contour of the member 31, it is prevented from falling downward by frictional force, and the dowel 34 is smoothly engaged in the dowel hole 35.

On the other hand, for the member 33, in the second processing step, punches 60 and 61 are used to pass through holes 39 near the outer periphery.
Then, a substantially fan-shaped through hole in which the notch 36 is to be formed (having the same shape as the through hole 61a of the die 53) is punched. Note that the third and fourth machining steps are not performed, the fifth machining step is performed by pitch feed, the outer peripheral contour punching is performed by the punch 65, and the member 31, the dowel 34 and the dowel 34 which are locked in the through holes 65a. The layers are sequentially stacked by engagement with the holes 35.

The second and fourth working steps are not performed on the member 32. In the third working step, the through hole 38 near the outer periphery and the substantially fan-shaped through hole (the through hole of the die 53) in which the notch 36 is to be formed are formed. A punching process (same shape as 62a) is performed. The outer peripheral contour punching process and the lamination mode in the fifth processing step are the same as those for the member 33.

In the processing of the members 32 and 33,
It is preferable that the diameter between the outer circumferential arcs of the punches 61 and 62 and the through holes 61a and 62a is slightly larger than the diameter of the punch 65 and the through hole 65a in the fifth processing step.

Member 3 for Forming Upper Part of Deformed Laminate 30
For No. 1, the outer peripheral contour punching process and lamination are performed in the fifth processing step without performing the second to fourth processing steps in the same manner as described above, and the deformed laminate 30 is formed. The deformed laminate 30 in the through hole 65 a is gradually extruded downward as the forming of the subsequent deformed laminate 30 proceeds, and is discharged below the die 53. In this case, since the dowel 35 is not formed in the lowermost layer of the member 31, the different shaped laminates 30 can be separated naturally and smoothly without being integrated. I mentioned earlier
In this way, the dimensions of the outer contour have substantially the same outer dimensions.
In order to obtain a shaped laminate, as mentioned above,
In the fifth processing step, both the member 31 and the member 32
Using a die and a die to punch out the workpiece 2 respectively.
What is necessary is just to laminate. However, for example, the outer contour of the member 32
Are contained inside the outer contour of the member 31.
Or a part of the outer contour of the member 32
Although only a part of the outer contour of the member 31 is common,
Other members are collectively included inside the outer contour of the member 31
If the punch and die are used,
Accordingly, the members 31 and 32 are added in the final processing step.
It is not possible to pierce and laminate each of the materials 2
No. That is, the member 32 having the included shape is punched.
Can not be punched, separate punch and die
It is necessary. The present invention solves this point.
Is to decide.

[0043] Figure 10 is a front view showing an example of a profiled laminate in the real施例of the present invention, FIGS. 11 and 12 respectively, of FIG 10
FIG. 3 is a view as seen from the direction of the arrows D and EE in FIG. In FIGS. 10 to 12, the modified laminate 40 is composed of two types of members 4.
1 (large gear) and a member 42 (small gear) are sequentially laminated and formed integrally. Adjacent members are positioned by engagement of four dowels (not shown) and dowel holes 43, respectively. And the relative movement is restricted. This relationship is the same as that of the deformed laminate 30 shown in FIG. 44 is a through hole provided in the center, and 45 is a tooth profile provided on the outer periphery.

[0044] Figure 13 is an explanatory view showing an example of the punch-die sets constituting the machining unit in the real施例of the invention, (a) shows essential part longitudinal cross sectional and (b) is a plan of the die. The vertical section of the main part shown by (a) is (b)
3 shows a longitudinal section along a chain line. In FIG. 14, circled numbers are processing step names, and the rest is the same as that shown in FIG. 9.

First, in the processing unit of the first processing step, a punch 7 for forming a pilot hole is formed in the punch body 51.
1, a punch 72 for doweling, a punch 73 for machining a through hole 44 at the center (see FIGS. 10 to 12), and a pilot pin 74 are provided. Note that the pitch between the pilot hole forming punch 71 and the pilot pin 74 matches the feed pitch P of the workpiece.

On the other hand, the die 53 is provided with the punches 71 and 7.
2, 73 and the pilot pin 74 are provided with through holes 71a, 72a, 73a, 74a.
1, 72 and a pilot pin 74 are respectively formed so as to be able to enter. Note that the through hole 72a is a pin 76 which is urged upward by a spring 75 vertically movably is interposed and moldable configure Da Bo and dowel hole.

Next, in the second processing step, a punch 76 and a through hole 76a into which the punch 76 can enter.
(For processing the through dowel hole of the lowermost layer of the member 41 in FIG. 10). Pilot pin 74 and through hole 7
4a is the same as that in the first processing step, and is also the same in the later-described third processing step and fourth processing step.

In the third processing step, a punch 77 for forming a tooth profile 45 to be provided on the outer periphery of the member 42 shown in FIG. 12 and a through hole 77a into which the punch 77 can enter.
Is provided. A push-up member 79 urged upward by a spring 78 is interposed in the through hole 77a so as to be vertically movable.

In the fourth processing step, a push rod 80 and a ring-shaped punch which is loosely fitted to the push body 80 and forms a tooth shape 45 to be provided on the outer periphery of the member 41 shown in FIG. 81 are provided. The punch 81 is urged downward by a spring 82 and is formed to be vertically movable. Reference numeral 83 denotes a key, which is configured to be able to engage and disengage with a hole 84 provided in the push rod 80 and the punch 81 so as to be orthogonal to the axis.

On the other hand, the die 53 is provided with a through hole 81a into which the punch 81 can enter. The through hole 81 a has a maximum inner diameter at a depth corresponding to at least the height of the deformed laminate 40 from the surface of the die 53 to be substantially the same as the outer diameter of the deformed laminate 40.

With the above configuration, the workpiece is sequentially pitch-fed from the first processing step to the fourth processing step,
The punch and die set in the processing step and the third processing step and the key 83 in the fourth processing step are
By selectively driving by the controller 700 shown in FIG. 10, the deformed laminate 40 shown in FIG. 10 can be sequentially formed by progressive feeding.

[0052]

[Table 2]

Table 2 shows the respective processing steps or the selective driving state of the punch / die set when the deformed laminate 40 shown in FIG. It is an aspect. However, in Table 2, a indicates that when the key 83 engages with the hole 84 and the push rod 80 operates integrally with the punch 80 in the fourth machining step, b indicates that the key 83 does not engage with the hole 84. , The case where only the pushing rod 80 operates.

With reference to Table 2, a description will be given of an embodiment of the progressive feeding and the lamination forming of the deformed laminate 40 with reference to FIGS. After first was processed in tip pilot hole of the workpiece, when the first processing step to feed pitch, in a state in which the pilot pin 74 is engaged with the pilot hole, member by a punch 71, 72, 73 Pilot hole, dowel projection and through hole 4 in the lowermost layer of No. 41
The processing of No. 4 is performed, and the above-described processing is sequentially performed on the second and third members 41 by pitch feed.

Further, the first processing step is also performed on the member 42 and the upper member 41 by successively feeding the workpiece. During this time, the lowermost layer of the member 41 is moved to the punch 7 by the pitch feed in the second processing step.
6, the dowel hole is penetrated. The second processing step is not performed on the second and subsequent members 41 and the member 42.

Next, the member 41 is not subjected to the third processing step, and the outer peripheral tooth form 45 is formed and punched by the punch 81 in the fourth processing step (see Table 2).
A). That is, by moving the key 83 to the right, it is engaged with the hole 84, and the punch body 51 is lowered in a state where the pushing rod 80 and the punch 81 are integrated. After the punching process, it is pushed into the through hole 81a of the die 53.

[0057] Ri by by punch 81 and push rod 80 to sequentially push to the through hole 81a in the dowel engages in the dowel hole 43 are integrated are sequentially stacked.

On the other hand, in the third working step, the outer peripheral tooth form 45 is formed and punched on the member 42 by the punch 77. Then, when the punch 77 is lifted after the punching, the lifting member 7 is restored by the restoring force of the spring 78.
Via 9, the punched member 42 is fitted again into a punched hole (not shown) of the workpiece and fed with the workpiece at a pitch. Then, in the fourth processing step, the preceding member 41 which is extruded from the workpiece by the extrusion rod 80,
42 and are sequentially laminated through the dowel and the dowel hole. That is, in this case, since the key 83 is withdrawn to the left (b in Table 2), the ring-shaped punch 81 does not perform punching, and only the push rod 80 operates. That is, the third processing is applied to the member 42.
Punched members after punching in the construction process
42 is a punched hole of the workpiece 2 (after the member 42 is punched)
) And sent to the fourth processing step. No.
In the four processing steps, as described above,
The member 42 is actuated, and the member 42 is moved through the dowel and the dowel hole.
Stacked.

Member 4 for Forming Upper Part of Deformed Laminate 40
For No. 1, after performing the first processing step in the same manner as described above,
Without performing the second and third processing steps, the formation, punching, and lamination of the outer peripheral tooth form 45 are performed in the fourth processing step, and the deformed laminate 40 is formed. Separating means between the emissions, and the different variants laminate mutual profiled laminates 40 from the through hole 81a is the same preparative said to be of.

In the above embodiment, an example was described in which a punch and die set having a cylindrical form in a U-shaped cassette was used.
For example, the operation is the same even in a so-called die set type in which a movable holder is provided via a guide post erected on a substrate. Further, the content of the progressive processing is not necessarily limited to only punching or punching, but may be processing other than these. Further, it goes without saying that the shape, size, and number of laminated layers of the deformed laminate are not limited to the above-described embodiment.

[0061]

According to the present invention, or because describing a configuration and operation, such as, the dimensions of the external outline different (of course, the outer shape
The dimensions of the contour may be substantially the same
I) Even in the case of a so-called deformed laminated body, processing and lamination can be performed by a series of progressive processing without changing the setup until processing in the final processing unit. Therefore, processing,
In addition to the ease of assembling, there is an effect that an increase in work-in-progress can be prevented, the setup time can be reduced, and the operation rate can be significantly improved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part showing an example of a progressive processing apparatus which is one of the premise of the present invention.

FIG. 2 is an explanatory view of a main part showing a processing state of a workpiece;
(A) shows a plane and (b) shows a cross section.

FIG. 3 is an explanatory plan view of a main part showing an embodiment of the present invention.

4 is a cross-sectional front view of an essential part showing an example of a processing unit in FIG. 3;

FIG. 5 is a partial cross-sectional front view showing an example of a deformed laminate having substantially the same outer dimensions as the outer contour .

FIG. 6 is a view as viewed in the direction of arrow A in FIG. 5;

FIG. 7 is a view taken in the direction of arrows BB in FIG. 5;

8 is a view as viewed in the direction of arrows CC in FIG. 5;

9A and 9B are explanatory views showing an example of a punch and die set constituting a processing unit for processing the deformed laminate shown in FIG . 5, wherein FIG . 9A is a longitudinal sectional view of a main part, and FIG. .

It is a front view showing an example of a profiled laminate in the real施例of the present invention; FIG.

FIG. 11 is a view as seen from an arrow D in FIG. 10;

FIG. 12 is a view taken along the line EE in FIG. 10;

[Figure 13] is an explanatory diagram showing an example of the punch-die sets constituting the machining unit in the real施例of the present invention,
(A) shows a longitudinal section of a main part, and (b) shows a plane of a die.

Continuation of front page (56) References JP-A-3-118746 (JP, A) JP-A-62-34702 (JP, A) JP-A-4-47504 (JP, A) JP-A-4-21329 (JP) JP-A-3-234400 (JP, A) JP-A-4-17930 (JP, A) JP-A-4-17998 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB Name) B21D 35/00 B21D 28/02-28/22

Claims (1)

(57) [Claims] 1. A plurality of processing units each having a cassette provided with a plurality of processing means detachably provided on a main body, and a plurality of processing units corresponding to a plurality of processing steps, the mP (m
Is an arbitrary positive integer, and P is disposed at intervals of the workpiece feed pitch) so that the plurality of processing steps are sequentially performed by the plurality of processing units for the pitch feed of the workpiece. In the progressive feeding device configured, independent driving means are provided for each of the plurality of processing units and / or cassettes, and these driving means can be selectively driven via the control means for the pitch feed of the workpiece. And the plurality of processing units and
And / or before the final processing unit of the cassette.
At least one processing unit
Punches and dies that have shapes corresponding to the outer contour of the engineering member
Punching the first processed member by
The first processed member was inserted into the punched hole formed in the workpiece.
It has a structure to be fitted and
Have a shape corresponding to the outer contour of the second workpiece.
Punching and laminating the second processing member with one punch and die
Structure to be fitted and sent to the workpiece
The first processed member is formed on the first processed member.
The structure is such that it is pushed and laminated through dowels and dowel holes.
To selectively execute the lamination process using the two structures.
A progressive processing apparatus characterized in that it is configured so as to be capable of forming a laminate composed of a plurality of types of members.