JP2909146B2 - Progressive processing equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a progressive feeding apparatus, particularly, for example, a band-shaped workpiece to be sequentially transferred at a predetermined feed pitch.
In a progressive feeder equipped with a plurality of processing means for sequentially performing a plurality of processing steps such as punching, bending, and drawing,
The present invention relates to a progressive machining apparatus capable of improving the accuracy of a machining position in each of the above machining steps.

[Conventional technology]

2. Description of the Related Art Conventionally, a progressive feeding apparatus for manufacturing a sheet metal product having a predetermined shape by continuously performing a plurality of processing steps such as punching, bending, drawing, and compression on a strip-shaped steel sheet sent at a predetermined pitch has been known. Are known.

FIG. 17 is an explanatory view showing an example of a conventional progressive processing device, which processes a bowl-shaped sheet metal product. Although FIG. 17 is a cross-sectional view for easy understanding, hatching is omitted, and the drawing is schematically illustrated.

In FIG. 17, reference numeral 10 denotes a block type,
a and a lower die 10b. For example, the upper die 10a is mounted on a press ram (not shown) via the shank 11, and the lower die 10b is mounted on a positioning fixing plate (not shown) on the press table. . In addition, the block die 10 has, in order from the left, a punching punch 12a and a punching die 12b, a cutting punch 13a and a cutting die 13b,
First to fourth drawing dies 14a to 17a and punch
14b to 17b, first and second shaping dies 18a and 19a and punches 18b and 19b, and edging dies 20a and punch 20b are provided. These punches and dies are held at predetermined intervals by an upper die holder 21a and a lower die holder 21b, respectively.

With the above configuration, if a workpiece such as a strip is fed from the left side between the punches and dies at a constant pitch, punching, bending, drawing, and the like are sequentially performed by the punches and dies. For example, a bowl-shaped or cap-shaped sheet metal product can be obtained.

FIG. 18 and FIG. 19 are a plan view and a front view, respectively, showing a processing state of a workpiece. In both figures, the workpiece 30 is sent at an equal pitch P from left to right, and a pilot hole 40 is formed by the punch 12a and the die 12b shown in FIG. 17, and the upper die holder 21a and the lower die The engagement of a pilot guide (not shown) disposed between the holder 21b and the holder 21b positions the workpiece on each stage. Next, reference numerals 41 to 48 denote the stages, respectively, each having an interval of the feed pitch P of the workpiece 30.
These stages will be schematically described with reference to FIG.

First, in the stage 41, an arc-shaped notch having a diameter larger than the outer dimensions of a cap-shaped sheet metal product is formed in the workpiece 30 by the cutting punch 13a and the cutting die 13b. Thereafter, the workpiece 30 is sequentially and intermittently moved to the right by the pitch P, so that the first to fourth dies 14a to 17a and the punches 14b to 17b for the first to fourth squeezing on the stages 42 to 45 respectively. Or the fourth drawing is performed. After the above-described cutting and drawing processes are completed, the first and second shaping dies 18 are provided on the stages 46 and 47.
The first and second shaping processes are performed by the a and 19a and the punches 18b and 19b, respectively, to complete the processing of the inner and outer shape. Next, in the stage 48, the outer dimensions are finally regulated by the edging die 20a and the punch 20b, and the cap-shaped sheet metal product 39 is separated from the workpiece 30 to complete the processing. In each of the above stages, in order to prevent wrinkling of the workpiece 30 due to drawing and shaping, the block mold 10 is provided with a wrinkle pressing means and a knockout means (not shown) for each stage. (Omitted).

[Problems to be solved by the invention]

The conventional progressive processing apparatus described above has a high production speed,
Although it has the advantage of being suitable for mass production of sheet metal products of a predetermined shape, it has the following problems. That is, since a plurality of pairs of punches and dies are incorporated in a single mold, the mold structure becomes extremely complicated, requiring high-precision mold manufacturing technology, and the manufacturing period is lengthened.
Production costs will increase. Also, when repairing and adjusting the mold partially damaged, it is necessary to disassemble the entire mold.
It is extremely complicated and requires a lot of time and man-hours. Furthermore, in the case of high-mix, low-volume production, if dedicated molds are completely manufactured every time the shape of the workpiece is different, the cost of the molds becomes relatively high, and the demand for so-called FMS is gradually increasing in recent years.
There is a problem that it cannot respond to the production method.

The present inventors have solved the problems existing in the prior art described above, and have a progressive machining apparatus as shown in FIG. 11 and FIG. 12 which has a simple structure and is configured so that partial adjustment can be easily performed. , Patent application dated December 1, 1988 (Japanese Patent Application No. 63-30
No. 4694). FIG. 11 is a front view of a main part, and FIG. 12 is a plan view of a main part, showing a configuration of the progressive feeding apparatus of the proposal.

As shown in FIGS. 11 and 12, the progressive feeding device proposed above firstly includes a pilot processing means 50 for pilot hole processing on a press table 31 having two T-grooves 32 formed thereon. It is set using the two T-grooves 32 described above. Next, a pilot guide means 60 for engaging with the pilot hole and correcting the processing position of the workpiece is set at a distance P from the pilot processing means 50. Here, P is a feed pitch of a workpiece (not shown) fed from right to left. Further, the first processing means 70 is placed at a distance of 2.5P from the pilot processing means 50, and the second processing means 70 is placed at a distance of 4.5P.
Processing means 80, the second pilot guide means 60 at a distance of 6P, the third processing means 90 at a distance of 7.5P, and a further 9.5P
The fourth processing means 100 are respectively disposed at the distance of. Reference numeral 33 denotes a mounting vault, and reference numeral 34 denotes a spacer. The spacer 34 is provided on the lower surface of the press ram 35 by the pilot processing means.
It is configured to be fixed corresponding to the position of the 50th to fourth processing means 100.

By feeding a strip steel, for example, at an equal pitch from the right to the progressive feeding apparatus having the above-described configuration, and operating the press ram 35, for example, through a processing process shown in FIG. And a plate-shaped metal product in the shape of a bowl or a cap.

FIG. 13 is a plan view showing the processing state of the workpiece, and FIGS. 14 (a), (b) and (c) are views showing the longitudinal cross-sectional shape of the workpiece at each stage in FIG. For ease of understanding, FIG. 11 and FIG. 12 are shown in correspondence with the positional relationship.

11 to 14, the workpiece 30 is fed from the right to the left at an equal pitch P, and the pilot hole 50 is first drilled by the pilot processing means 50. Next, when the workpiece 30 moves by the pitch P, the next pilot hole 40 is pierced, and a pilot pin (not shown) of the pilot guide means 60 is engaged with the already pierced pilot hole 40. Then, the workpiece 30 is positioned. Therefore, even if there is some error in the feed distance, it is corrected by the pilot guide means 60. Further, when it moves by the pitch P, it reaches the stage 41 and the first processing means 70 processes the arc-shaped cut 70a. Next, Idol Stage 4
2 and reaches the stage 43, drawing is performed by the second processing means 80, and as shown in FIG.
A bowl-shaped projection 80a is formed on 30 and the arc-shaped notch 70a is widened to change into an arc-shaped groove 70b. Next, when the stage 46 is reached via the idle stages 44 and 45, the flange hole 90a (shown in FIG. 14 (b)) is processed by the third processing means 90. Furthermore, idle stage 47
In the stage 48 through the fourth processing means 100
As a result, edging is performed with the outer dimensions of the bowl-shaped sheet metal product 100a (shown in FIG. 14 (c)), and the processing is completed.

The progressive feeding device of the above-described proposal described above has a base
Improve the arrangement means such as a plurality of independent processing means arranged on the plate. For example, exchange, movement, etc. of the above-mentioned processing means accompanying a change in processing contents, a change in a process, a change in a processing order, and the like. It is possible to improve the work efficiency of the system. Further, in order to improve the precision of the product, a pilot processing means 50 and a pilot guide means 60 are provided to improve the precision of the processing device in each stage with respect to the workpiece 30. However, it is only when the setting position of the pilot guide means 60 that performs the position correction, as well as the setting position of each processing means, is made accurate corresponding to the feed pitch P of the workpiece 30.
For the first time, the accuracy of the machining position can be increased.

However, for example, when the distance between the pilot processing means 50 and the pilot guide means 60 is (P ± α) with respect to the feed pitch P of the workpiece 30, the difference α is 1
There is a problem that the error is gradually increased by being added for each pitch feed. FIG. 15 and FIG.
This will be specifically described with reference to the drawings. The distance between the pilot processing means 50 and the pilot guide means 60 does not always coincide with the one-pitch feed amount P.
It may be nP (n is a positive integer) corresponding to the size of the product. FIGS. 15 and 16 show an error generation mode in a case where the distance between the pilot processing means 50 and the pilot guide means 60 is 3P, but the distance is 3.1P due to an installation error. (A) shows the installation position of the pilot processing means 50, and (B) shows the installation position of the pilot guide means 60. FIG. 15 shows the case where the feed amount of the workpiece 30 is exactly P, and FIG. 16 shows the case where the feed amount of the workpiece 30 has an error. In Figure 15, at time T ₁ is perforated first pilot hole, at time T ₁ through T time T ₂ 1 pitch feed is performed between _two second pilot hole is drilled. Furthermore, the time
T in ₂ through T 1 time T ₃ in the pitch feed is performed during the _three third pilot holes are drilled. Since the pitch feed amount during this period is exactly 1P, the distance between the pilot holes and between the pilot holes is 1P. Next, one pitch feed between times T ₃ through T ₄ is performed under the state where the pilot guide is performed by the pilot guide means 60 relative to the pilot hole, a fourth pilot at time T ₄ A hole is drilled. At this time, since the distance between the pilot processing means 50 and pilot guide means 60 is 3.1P, the pitch feed amount made during the time T ₃ through T ₄ is substantially 1.1P, pilot Hole ~
The distance between them is 1.1P. In the same manner as described above, the drilling of the pilot holes,... Is performed every one pitch feed, and the pilot guide is performed every three pitch feeds.

As is clear from FIG. 15, since the distance between the pilot processing means 50 and the pilot guide means 60 should be 3P, which is 3.1P, a difference of 0.1P is added for every three pitch feeds thereafter, and gradually. The error will be enlarged.

The example shown in FIG. 16 is also basically the same as the example shown in FIG. 15, and the distance between the pilot processing means 50 and the pilot guide means 60 should be 3P, which is 3.1P. 0.1P is added every three pitch feeds, and the error gradually increases. In the example shown in FIG. 16, there is an error in the pitch feed amount P, and the time T _{1 to} T ₂
Pitch feeding amount is carried out during the 1.2P, pitch feed quantity which is performed between times T ₂ through T ₃ has a 0.9P.

As described above, in order to increase the accuracy of a product manufactured by the progressive processing apparatus, it is important to make the distance between the pilot processing means and the pilot guide means accurate, and to dispose the other processing means. There is a need for improved positional accuracy.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned demands, and is intended to improve the accuracy of arrangement positions of a pilot processing means, a pilot guide means, and other processing means in a progressive feed processing apparatus, and It is an object of the present invention to provide a progressive processing apparatus capable of improving the accuracy of a processing position in each stage with respect to the above and manufacturing a high-precision product.

[Means for solving the problem]

The progressive feeding apparatus according to the present invention includes a plurality of independent processing means corresponding to a plurality of processing steps, and a press table in which the plurality of processing means are sequentially arranged in the feed direction of the workpiece, Corresponding to the pitch feed of the work material,
In a progressive feed processing apparatus configured to sequentially perform the plurality of processing steps on the workpiece by the plurality of processing units, the press table has a groove along a feed direction of the workpiece. In addition, each of the plurality of processing means main bodies in the plurality of processing means is configured to have a dovetail that is slidably fitted to the dovetail groove, and the plurality of each of the plurality of processing means bodies is provided in the dovetail groove. A fine moving means for guiding and finely moving relative to the press table is provided, and each processing means main body is configured so as to be positioned on the press table so as to be freely positioned. A drive spiral gear rotatably provided, a screw shaft arranged in a direction along the dovetail groove, and the plurality of processing means main bodies. And a female screw provided with the female screw and meshing with the screw shaft, and the processing means main body is configured to move independently with the female screw moving along the screw shaft. .

 Hereinafter, description will be made with reference to the drawings.

〔Example〕

1 (A) and 1 (B) are explanatory diagrams for explaining an embodiment of the present invention, FIG. 2 is an operational explanatory diagram of the embodiment shown in FIG. 1, and FIG. Digital display device for displaying the position of the processing means, FIG. 4 shows another embodiment of the protection member shown in FIG. 2, and FIGS. 5 to 10 show one embodiment of the processing means in the present invention. FIG.

The progressive machining apparatus of the present invention has basically the same configuration as the progressive machining apparatus shown in FIGS. 11 and 12 described at the beginning of the specification of the present application.
This is to carry out progressive processing as shown in FIG. That is, pilot processing means, pilot guide means, respective processing means corresponding to the processing steps, etc. (hereinafter collectively referred to as processing means) are set on the press table using T-grooves.

In the present invention, as shown in FIG. 1, each processing means is provided with means for positioning the set position of the processing means, so that accurate positioning can be performed by a simple operation. Have been. 1 (A) is a plan view including a cross section of a main part for explaining a processing means in the present invention, and FIG. 1 (B) is a cross section of a main part along arrow AA shown in FIG. 1 (A). FIG.

In FIG. 1, reference numeral 1 denotes a processing means main body in the present invention. As described above, since each processing means and the like are collectively referred to as processing means, "the part directly related to the present invention" in each processing means, that is, fits into the dovetail groove on the press table. When the "portion having presence or the like" is specified and emphasized, that portion is particularly referred to as a processing means main body. As can be seen from this, only one processing means main body 1 is shown in FIG. 1, but other processing means (the pilot processing means, the pilot guide means, and the processing means corresponding to the processing steps). Is similarly configured. Then, the processing means main body 1 is set on the press table 31 by the mounting vault 33 using the T groove 32.

Reference numeral 2 denotes a drive unit, which includes a drive shaft 2-1 and the drive shaft 2-1.
Handle 2-2 for driving the motor, and the drive shaft 2-1
, And is rotatably mounted via a bearing means 2-5 in a driving part accommodating part 2-4 formed in the processing means main body 1.
Note that the axial direction of the drive shaft 2-1 coincides with a direction perpendicular to the feed direction of the workpiece (not shown) (the arrow X direction in FIG. 1A).

Reference numeral 3 denotes a driven portion, which has a screw shaft 3-1 fixed to the press table 31 and a female screw meshed with the screw shaft 3-1 and meshes with the driving spiral gear 2-3. A driven part housing 3-formed by a driven spiral gear 3-2 and penetrating the processing means main body 1.
3 is installed. The axial direction of the screw shaft 3-1 is along the feed direction of the workpiece.

Note that 2,2-i (i = 1 to 5), 3,3-i (i
= 1 to 3) are collectively referred to as fine moving means.

Reference numeral 4 denotes a dovetail groove, and 4 'is a dovetail, which is a well-known precision sliding means usually used for a machine tool or the like, and is formed in a direction along the feed direction of the workpiece.

5 is a position sensor, and 5 'is a measurement scale, which is a well-known position detecting means. The position of the processing means main body 1 in the illustrated arrow X direction is precisely measured by the position detecting means. The measurement result by the position detecting means is displayed on a digital display device 6 as shown in FIG. 3, for example. The numerical value displayed by the digital display device 6 indicates, for example, the distance from the reference position of the press table 31 in mm. That is, according to the position detecting means, it is possible to detect the position of the processing means main body 1 with an accuracy of 1/100 mm.

The configuration of the positioning means provided in the processing means in the progressive processing apparatus of the present invention has been described above with reference to FIG. 1. Next, the positioning operation by the positioning means will be described with reference to FIG. FIG. 2 is a cross-sectional view taken along arrow BB in FIG. 1 (A).
For ease of understanding, the hatched lines representing the cross section are partially stopped but not all of the cross section. Then, the first symbol is used in the figure.
The same components as those shown in the drawings correspond to those in FIG. Reference numerals 1-1, 1-2, and 1-3 denote processing means main bodies, and the processing means main body 1-2 may be considered to correspond to the processing means main body 1 shown in FIG. Processing means body 1-1
And 1-3 are provided adjacent to the processing means main body 1-2. Reference numeral 3-4 denotes a flange, 3-5 denotes a cylindrical spacer, 3-6 denotes a bearing, 7 denotes a bellows, and 8 denotes a flange mounting recess.

In FIG. 2, a drive shaft 2-1 is connected to a drive handle 2-2.
(Shown in FIG. 1) to drive clockwise or counterclockwise. As the drive shaft 2-1 rotates, the drive spiral gear 2-3 also rotates. The driving spiral gear 2-3
With the rotation of the driven spiral gear 2-3, the driven spiral gear 3-2 meshing with the driving spiral gear 2-3 rotates and meshes with the screw shaft 3-1. Illustrated arrow X
Move in the direction. On both sides of the driven spiral gear 3-2, a cylindrical spacer 3-5 is sandwiched between the side surface of the driven spiral gear 3-2 and the flange 3-4 inside the driven portion accommodating portion 3-3. Is installed via a bearing 3-6. Note that one cylindrical end face of the spacer 3-5 is slidably in contact with the side face of the driven spiral gear 3-2, and the other cylindrical end face is slidably in contact with the flange 3-4. Therefore, due to the presence of the spacer 3-5,
The driven spiral gear 3-2 moves in the illustrated arrow X direction without changing the positional relationship with respect to the driving spiral gear 2-3. That is, with the movement of the driven spiral gear 3-2, the processing means main body 1-2 becomes
It moves in the illustrated arrow X direction along the dovetail groove 4 (shown in FIG. 1). The bellows 7 is for protecting foreign matter from being inserted into the screw groove of the screw shaft 3-1. Instead of the bellows 7, for example, an elastic cover such as a screw cover 9 shown in FIG. A member may be used. In FIG. 2, the flange 3-4 to which both ends of the bellows 7 are fixed is attached to the flange attachment recess 8 formed by cutting the side surface of the processing means main body 1-2. For example, the processing means main body 1-1 and the processing means main body 1-2
The space for accommodating the bellows 7 can be ensured even when the distance between the bellows is sufficiently small.

The operation for positioning the processing means in the progressive-feed processing apparatus of the present invention has been described with reference to FIG. 2, but before the positioning operation is performed, the mounting vault 33 (first
It is needless to say that the processing means main body 1 is slid along the groove 4 by relaxing the processing means main body 1 (shown in the figure). Then, as described above, after moving the processing means main body 1 to a desired position, the mounting vault 33 is
Fix with. In addition, since the position of the processing means main body 1 is displayed on the digital display device 6, positioning can be performed easily and accurately.

Next, an embodiment of the processing means in the present invention will be described with reference to FIGS.

5 and 6 show a front view and a side view, respectively, of a main part of an embodiment of the processing means according to the present invention. In both figures, a holder (61) to be described later
It is mainly for explaining the positioning relationship between the lower frame (65) and the lower frame (65).
−i (i = 1 to 5), 3,3-i (i = 1 to 3),
The presence of 4 ', 5,5', 33 is omitted. Needless to say, the hydraulic cylinder (73) described later may be omitted and the press ram 35 shown in FIG. 11 may be used instead.

In the figure, 61 is a holder. The holder 61 is formed in a box shape having a gap 62 as described later,
And a die 64 are opposed to each other with the gap 62 therebetween. Reference numeral 65 denotes a lower frame formed, for example, in a substantially L-shape. Above the lower frame 65, an upper frame 66 formed in a substantially inverted L-shape is fixed via a vault 67, and the holder 61 is held horizontally. It is mounted so that it can slide in the direction. The portion of the lower frame 65 corresponds to the above-mentioned processing means main body. 68 is a positioning pin and 69 is a vault for fixing. Reference numeral 71 denotes a rotation shaft, which is rotatably provided on the lower frame 65 and has a positioning pin.
68 is engaged so that it can move up and down. Reference numeral 72 denotes a lever, which is fixed to the free end of the rotating shaft 71. Reference numeral 73 in the drawing denotes a hydraulic cylinder mounted on the upper frame 66, which operates the punch 63 via the ram 74.

FIG. 7 shows a positioning pin in FIGS. 5 and 6.
FIG. 7 is an enlarged perspective view showing a rotation shaft 71 and a lever 72.
In FIG. 7, reference numeral 75 denotes an eccentric pin, which is eccentrically provided at the tip of the rotating shaft 71 and is integrally provided with the groove 76 provided on the positioning pin 68. With such a configuration, the positioning pin 68 can be moved up and down by rotating the rotating shaft 71 in the direction of the arrow shown in the figure via the lever 72.

Next, FIGS. 8, 9 and 10 are an enlarged front view, a side view and a plan view showing the holder 61 in FIGS. 5 and 6, respectively. Figures 8 to 10
In the drawings, reference numeral 77 denotes a mounting hole.
It is formed so that the punch 63 shown in the figure can be attached. Reference numeral 78 denotes a viewing window, which is provided on the front side of the holder 61. Reference numeral 79 denotes a vault hole, and 81 denotes a positioning hole, which are provided so that the fixing vault 69 and the positioning pin 68 shown in FIGS. 5 and 6 can be inserted.

The operation of the above configuration will be described with reference to FIGS. 5 to 10. First, place the holder 61 on the lower frame
When the rotary shaft 71 is rotated via the lever 72 while being placed on the mounting plate 65, the positioning pin 68 projects upward from the lower frame 65 and fits into the positioning hole 81 of the holder 61 to perform positioning. Therefore, the holder 61 is fixed to the lower frame 65 via the fixing vault 69 at this position.
Then, a predetermined machining operation is performed in this state.

Next, when replacing the punch 63, the positioning pin 68 is lowered by the rotation of the lever 72, and the fixing vault 69 is removed, and the sliding is performed to the front of the holder 61, that is, to the left in FIG. Therefore, a space can be secured above the punch 63. Therefore, punch 63
Can be removed and new products can be attached. punch
After the attachment of the holder 63, the holder 61 is fixed as described above, and the subsequent processing is continued. In this configuration, the punch 63 and the die 64 together with the holder 61 are used.
The punch 63 and the die 64 can be easily replaced and aligned.
There is an advantage that workability is good. Also a holder
In addition to mounting the punch 63 and the die 64 on the 61, it is possible to perform multipurpose progressive processing by replacing and mounting the spot welding device, the measuring device, the tapping device and the like.

〔The invention's effect〕

As described above, according to the present invention, since the positioning of the processing means can be performed easily and accurately, the precision of the processing position in each stage with respect to the workpiece is increased, and a highly accurate product is manufactured. It is possible to provide a progressive processing device capable of performing the following. In addition, the exchange of the punch and the die becomes easy, and the multi-purpose progressive processing can be performed by replacing the punch and the die with a spot welding device, a measuring device, a tapping device, or the like and replacing the same. Become.

[Brief description of the drawings]

1 (A) and 1 (B) are explanatory diagrams for explaining an embodiment of the present invention, FIG. 2 is an operational explanatory diagram of the embodiment shown in FIG. 1, and FIG. Digital display device for displaying the position of the processing means, FIG. 4 shows another embodiment of the protection member shown in FIG. 2, and FIGS. 5 to 10 show one embodiment of the processing means in the present invention. FIGS. 11 and 14 are explanatory diagrams for explaining a progressive feeder which is a premise of the present invention, and FIGS. 15 and 16 show problems caused by errors in the installation position of pilot guide means. FIG. 17 to FIG. 19 are explanatory diagrams for explaining a conventional progressive machining apparatus. In the figure, 1,1-1,1-2,1-3 are processing means main bodies, 2 is a driving unit, 2
-1 is a drive shaft, 2-2 is a drive handle, 2-3 is a drive spiral gear, 2-4 is a drive unit accommodating portion, 2-5 is a bearing means, 3 is a driven portion, 3-1 is a screw shaft, 3 -2 is driven spiral gear, 3-3
Is a follower housing, 3-4 is a flange, 3-5 is a cylindrical spacer, 3-6 is a bearing, 4 is a groove, 4 'is, 5 is a position sensor, 5' is a measurement scale, 6 is Digital display, 7 is bellows, 8
Represents a recess for mounting a flange, and 9 represents a screw cover.

Continuation of the front page (56) References JP-A-2-187300 (JP, A) JP-A-4-17997 (JP, A) JP-A-4-17930 (JP, A) JP-B-8-15680 (JP) , B2) JP 45-12797 (JP, B1) (58) Field surveyed (Int. Cl. ⁶ , DB name) B30B 13/00, 15/02

Claims (3)

(57) [Claims] A plurality of independent processing means corresponding to a plurality of processing steps, and a press table in which the plurality of processing means are sequentially arranged in a feed direction of a workpiece.
A progressive feeding apparatus configured to sequentially execute the plurality of processing steps on the workpiece by the plurality of processing means in correspondence with the pitch feed of the workpiece, wherein the press table includes: Along the feed direction of the processing material and having a groove, each processing means main body in the plurality of processing means,
A micro-movement configured to have a slidable fit with the dovetail groove, and to guide the plurality of processing means main bodies into the dovetail groove and finely move relative to the press table; Means are provided, and each processing means main body is configured so as to be positioned on the press table so as to be freely positioned. The fine moving means includes a driving spiral gear rotatably provided, and the dovetail groove. And a female screw provided in each of the plurality of processing means main bodies and meshing with the screw shaft, wherein the processing means main body moves along the screw axis. A progressive feeding device characterized in that it is configured to move independently with each other with internal female screws. 2. The progressive feeding apparatus according to claim 1, wherein the plurality of processing means main bodies each include a position sensor for detecting a position of the workpiece in the feeding direction. Processing equipment. 3. The progressive feeding apparatus according to claim 1, further comprising a telescopic protection member for covering the screw shaft between the plurality of processing means main bodies. .