JPH07195238A - Pressing method by means of mobile cylinder and cylinder mobile type pressing device - Google Patents

Abstract

PURPOSE:To automatically carry out several kinds of boring and press-fitting of parts for one piece of a workpiece by a laterally movable pressing cylinder. CONSTITUTION:A fitting base 8 for fixedly installing a pressing cylinder 9 is made slidable in the lateral direction, and it is energized by a spring 11 so as to be slightly movable to the forward, and a plurality of punches 28, 29, 30 are arranged before the cylinder in the sliding direction of the cylinder, and then after the lateral shift of the slide has been stopped in a prescribed punch position, the cylinder is operated so as to be brought into contact with the rear end of the punch, and by moving a piston rod 12 forward a prescribed press working is carried out to a work piece 17. Then the cylinder is laterally moved in the subsequent punch position for performing the subsequent press working, and in this way the lateral movement, stoppage, and operation of the cylinder is successively carried out for performing the different kinds of press working by means of punches.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a press cylinder, which is a main component of a press machine, which is slidable in a lateral direction, and various press workings can be performed on a workpiece by one press machine. TECHNICAL FIELD The present invention relates to a pressing method using a self-propelled cylinder and a cylinder self-propelled press device that enable continuous operation.

[0002]

2. Description of the Related Art In a conventional press machine, a downward cylinder for pressing is installed and fixed above a central portion of a table, and a predetermined position of a work piece is moved to a position right below the cylinder, and the work piece is jigged. It is fixed and press working such as punching holes and press fitting parts is performed.

However, for example, in the case of press-fitting work of one kind of component into a plurality of places for one work piece, the work pieces are sequentially aligned on the table and are pressed by a holding jig. Although it was fixed, it is necessary to fix the parts feeder and the parts supply magazine that automatically supply the press-fitted parts on the table.When pressing multiple types of parts into the work piece, the parts feeder and parts supply Magazine must be replaced.

Therefore, in such a case, a plurality of parts feeders and magazines for supplying press-fitted parts are fixed in parallel,
It is conceivable that the table on which the press machine is installed is slidable and the positions of the workpiece and the press machine are moved relative to the parts supply section of the magazine. However, in this case, since the table surface to be slid by NC or the like must be subjected to a large thrust of the press machine, it is very difficult to maintain its accuracy and strength, and the mechanism is complicated and large in size. The cost will be extremely high. Therefore, in such a case, it is more realistic and economical to use a plurality of press machines, and a method of sliding one press machine itself has not been conventionally adopted.

[0005]

SUMMARY OF THE INVENTION The present invention is capable of continuously punching a plurality of types or press-fitting a plurality of types of components into one work piece with one press cylinder in a small space. The present invention proposes a press device that can be quickly performed, and particularly solves the above-mentioned problems caused by laterally moving a press cylinder by a simple method.

[0006]

SUMMARY OF THE INVENTION According to the present invention, a mounting base of a press cylinder is configured to be slidable in a lateral direction, and the cylinder is spring-supported so as to be movable back and forth to some extent. When the rod advances and comes into contact with the rear end of the punch, the cylinder retreats against the spring and strikes a fixed block behind, and the reaction force is used to advance the rod with a large original thrust to move it to a predetermined position. It enables the press working work of

That is, according to the present invention, a press cylinder is installed and fixed on the upper surface of a slide plate which is inserted into and meshes with a screw shaft which is rotationally driven by a motor and is slidable in the left and right directions on a guide rail. A mount is attached, and the mount is configured so as to be slidable in the front-rear direction by being supported by being inserted through the lower side of a guide rod which is passed over the slide plate in the front-rear direction and provided on the lower side of the mount. A forward end of a piston rod of the cylinder is urged by a coil spring in the forward direction with respect to the slide plate, and rear ends of a plurality of punches arranged in front in parallel with the slide direction of the cylinder. Proposes a cylinder self-propelled press device and a press device using the same, in which a receiving plate is arranged and fixed to press the cylinder against the spring to retreat against the spring and apply pressure. Is shall. Embodiments of the present invention will be described below with reference to the drawings.

[0008]

【Example】

Example 1 FIGS. 1 and 2 show an example in which different kinds of parts (for example, short pins, stepped pins, bearings, etc.) are continuously press-fitted into each hole of a workpiece in which a plurality of holes having different sizes are previously formed. FIG. 1 is an overall perspective view and a side explanatory view of the device of the present invention, in which reference numeral 1 is a slide plate slidably movable on two parallel guide rails 3 and 3 laid and fixed on a base 2 in the left-right direction. On the lower surface of the slide plate 1, a guide plate is vertically provided between a slide plate 4 having a U-shaped cross section and the guide rails 3 and 3 in which the above-mentioned two guide rails 3 and 3 slidably bite from the front and rear sides. A moving metal object (a chewing alloy material) in which a screw shaft (hole screw) 6 rotatably driven by a motor 5 installed on the side of the shaft 3 is inserted and meshed with an axial center portion parallel to the guide rail 3.
7 is fixed, and the movable hardware 7 is rotated by the rotation of the screw shaft 6.
Moves left and right along the guide rails 3, whereby the slide plate 1 moves left and right.

Reference numeral 8 denotes a mounting base having a horizontal hydraulic or pneumatic cylinder 9 installed and fixed on the upper surface thereof. The mounting base 8 is fixed to the upper portion of the slide plate 1 in the front-rear direction by a transfer.
The guide rods 10 which are parallel to each other are inserted and supported on the lower side so that they can slide back and forth to some extent.
Can slide left and right together with the slide plate 1 and can move a little forward and backward, and a relatively weak spring force is applied between the front head portion of the guide rod 10 and the inner surface of the front lower bent portion 8a of the slide plate 1. A compression coil spring 11 is provided, and the mounting base 8 is biased by the spring 11 so as to always slide forward slightly.

The piston rod 12 of the pressing cylinder 9 is directed forward, and the cylinder bottom plate 1 is also provided.
3 (that is, the cylinder frame plate on the backward side of the piston rod 12)
A pad 14 is attached to the outer central portion of the cylinder 9
A support bar 16 on the rail that is long in the left-right direction is fixed at the same height position above the front plate 14 above the front surface of the support plate 15 that is vertically erected and fixed.

Therefore, when the cylinder 9 is inoperative, the cylinder 11 on the mount 8 is moved slightly forward by the spring 11, so that the pad 14 at the rear end is moved.
Is separated from the receiving metal 16 (for example, several mm), but when a load is applied to the tip of the rod 12 by the operation of the cylinder 9, first, the mounting base 8 is retracted against the spring 11.
The backing plate 14 of the cylinder 9 immediately abuts the backing plate 16 behind it. As a result, the receiving bar 16 serves as a thrust support for the cylinder 9, and the rod 12 exerts its original force for the first time.

Reference numeral 17 denotes a work piece fixed on a fixing table 57 arranged in front of the cylinder 9 by a suitable jig (not shown). Multiple magazines 21,2 supplying different press-fit parts
2 and 23 are arranged side by side in the left-right direction.

In the drawing of the embodiment, the work 17 has a prismatic shape and has three holes 18 of different diameters on its front surface as shown in FIG.
19 and 20 are preliminarily opened by a drill or the like at arbitrary gaps, and press-fitting parts corresponding to the diameters of the holes are provided in the magazines 21, 22 and 23, which are arranged in front of the holes, respectively. For example, a large number of short pins 24, stepped pins 25, and bearings 26 are loaded in line.

Numeral 27 is a punch (rod) 28, 29, 3 for supporting each magazine and for press-fitting each press-fitted part.
0 is a support body that slidably inserts 0 in the horizontal direction at the same height position, and each punch is biased in the retracting direction with respect to the work piece 17 by the compression coil spring 31 wound around the rear end thereof. There is.

Reference numeral 32 designates the punch tip portions 28a, 29a, 3
0a is a holder for press-fitting parts slidably mounted back and forth (see FIGS. 3 to 5), and a receiving groove for supporting and mounting the press-fitting parts sent from the lower side of the magazine is provided on the upper surface of the holder 32. (Not shown) is provided, and a compression coil spring 33 is wound around the punch portion on the rear side of the holder 32, and is biased to position the holder 32 immediately below the magazine when the punch is pulled in by the force of the spring 31. ing. Reference numeral 34 denotes a stopper fixed to an intermediate portion of the punch, which is provided on the front side of the support body 27 and regulates the pull-in length of the punch by the spring 31 to position the holder 32.

However, the short pin 24, the stepped pin 25, and the bearing 26 are respectively provided corresponding to the holes 18, 19, 20 of the workpiece 17 fixed on the base 57 by this device.
In order to press in, the motor 5 is driven by NC control to rotate the screw shaft 6 having a ball screw structure, and the press cylinder 9 is slid laterally together with the slide plate 1 to face a predetermined position, for example, the magazine 21. Stop at the position you want.

Therefore, when the cylinder 9 is operated as described above, the hammer portion 35 at the tip of the piston rod 12 advances and first presses against the rear end surface of the front punch 28, and further the rod 12 advances to move the punch 28 forward. The mount 8 including the spring 11 having a weaker spring force than the spring 31 wound around the punch 28 moves backward against the spring 11 and is mounted on the rear part of the cylinder 9 on the mount 8. The block-shaped backing metal 14 immediately hits the rail-shaped backing metal 16 behind, for example, several mm (see FIGS. 3 to 4).

As a result, the cylinder 9 is fixed by being supported by the receiving metal 16 under pressure, and the press reaction force of the cylinder 9 is received by the receiving metal 16 when the piston rod 12 further advances. No load is directly applied to the slide plate 1 or the cylinder mount 8.

When the hammer portion 35 at the tip of the piston rod 12 further presses against the rear end portion of the punch 28 while the cylinder 9 is prevented from retreating as described above, the cylinder 9 exerts its original pressing force, From now on, the rod 12 strongly pushes the punch 28 forward against the spring 31 wound around the punch 28 (see FIG. 5).

The magazine 21 is driven by another cylinder (not shown) driven in response to the reciprocating motion of the punch 28.
The short pins 24 which are aligned and loaded in the inside are supplied one by one from below onto the holder 32 attached to the tip of the punch 28, the holder 32 moves forward together with the punch 28, and the front end of the holder 32 is the work piece. 17, when the holder 32 is pressed against the front surface of the punch 28, the stopper 34 fixed to the middle portion of the punch 28 compresses the spring 33 on the front side of the punch 32 while the holder 32 remains at the same position, and the punch tip 28a slides on the short pin 24 on the holder 32. The short pin 24 is pushed forward into the predetermined hole 18 of the workpiece 17 (see FIG. 5).

When the press-fitting of the short pin 24 is completed in this way, the press cylinder 9 returns and the piston rod 1
When the punch 28 is retracted, the punch 28 retracts to its original position by the spring force of the spring 31, and the punch tip 28
The above-mentioned component holder 32 of a is also a spring 33 on the rear side.
It is pressed to return to the component receiving position below the magazine 21 (see FIG. 3), and stands by for press-fitting the short pin 24 into the next workpiece.

On the other hand, when the tip hammer portion 35 is separated from the rear end of the punch 28 by retracting the rod 12 of the cylinder 9, the spring 11 on the lower side of the mount 8 pushes the mount 8 forward and the cylinder 9 rear. End pad 1
4 separates from the backing plate 16 (see FIGS. 2-3).

Then, next, in order for the cylinder 9 to press-fit the stepped pin 25 into the hole 19 next to the workpiece 17, the slide plate 1 is slid laterally by the drive of the motor 5 again. The cylinder 9 on the mounting base 8 that moves together with the 1 press-fit punch 2 of the magazine 22 for the stepped pin 25
9, the stepped pin 25 is press-fitted into the hole 19 by the operation of the cylinder 9 in the same manner as described for the short pin 24. Then, when the stepped pin 25 is completely fitted, the cylinder 9 is further moved laterally, and the bearing 26 is likewise press-fitted into the hole 20 this time at the position of the magazine 23.

Thus, according to this device, the cylinder 9
When the slide movement of the cylinder 9 is performed in the lateral direction, the mounting base 8 of the cylinder 9 is slightly pushed forward with respect to the slide plate 1 on the lower side by the interposition of the spring 11, and the backing pad 14 at the rear end of the cylinder 9 is pushed. Since it is separated from the fixed backing plate 16 behind it, it can freely move laterally, and when the rod 12 of the cylinder 9 performs press work at a predetermined position, the rod 12
Mount 8 against spring 11 by the load on the tip
By retreating, the pad 14 is received, so that no load is applied to the cylinder mount 8, the slide plate 1 and other slide mechanisms.

Embodiment 2 FIGS. 6 to 8 show, for example, two kinds of different holes, for example, two continuous holes 37 and 1 on the upper and lower sides of a workpiece 36 which is a relatively long plate material as shown in FIG. The individual holes 38 are opened, the continuous two holes 37 are brought close to the left and right ends, and the one hole 38 is opened in two places at appropriate intervals in the middle part.
6 shows an embodiment of an apparatus used when press-fitting and fixing the short pins 24 similar to those in Embodiment 1, respectively. The lateral slide mechanism of the cylinder 9 located in the right half portion in FIGS. In addition, the mounting relationship between the mounting plate 8 on which the cylinder 9 is installed and the slide plate 1 and the point that when the cylinder 9 is in operation, the receiving metal 16 receives the entire press reaction force, the configuration is the same as that described in the first embodiment. Is.

On the other hand, unlike the first embodiment, the workpiece 36 is supported by a mechanism similar to the moving mechanism of the cylinder 9 so as to be slidable left and right, and also slightly movable back and forth.

That is, two guide rails 39, 39 extending in the left-right direction are provided on the fixed base 57, and a slide plate having a U-shaped sliding plate 41 and a movable hardware 42 attached to the lower surface of the guide rail 39. 40 is slidably mounted along the rail 39, and the slide plate 40 is configured to slide laterally by the engagement of the ball screw shaft 44, which is rotationally driven by the motor 43, and the movable hardware 42. A moving table 45 provided on the slide plate 40 is slidably supported by two parallel guide rods 46 that are fixed in the front and rear direction on the slide plate 40, and a compression coil is provided behind the rods 46. A spring 47 is provided and is biased so as to push the movable table 45 to slide slightly backward, and the work piece 36 is fixed on the movable table 45 by an appropriate jig.

Reference numeral 28 in FIGS. 6 and 8 indicates the first embodiment.
A press-fitting punch similar to the press-fitting punch for the short pin 24 described above, and accordingly, a slidable short-pin press-fitting holder 32 (see FIG. 3) is similarly attached to the tip of the punch 28.

In FIG. 6, 48 is a punch punch for one hole, 4
Reference numeral 9 is a punch for punching two holes, each of which is a standing support plate 50.
Is slidably supported on the punches 48 and 49.
Like the press-fitting punch 28, compression coil springs 51 and 52 are respectively wound so that both punches are retracted toward the cylinder 9 side.
8 and 49 are juxtaposed at the same height position along the guide rail 39 with an arbitrary gap.

Reference numeral 53 designates a wall plate which is erected and fixed on the opposite side by sandwiching the punches 28, 48, 49 and the work piece 36. Receiving metal fittings 54, 54 are provided at the respective punch-corresponding portions above the front face of the wall plate 53. The receiving dies 55 and 56 are fixed in a protruding manner.

Thus, for example, first, the plate-shaped workpiece 36
In order to open one hole 38 in the middle of the two holes as shown in FIG. 10, the motor 5 is driven to slide the cylinder 9 laterally, and the tip hammer 35 of the piston rod 12 is punched for one hole 48. The cylinder 9 is operated so as to face the rear end. As a result, the hammer 35 comes into pressure contact with the rear end surface of the punch 48, but similarly to the first embodiment, the cylinder 9 is once moved to the rear end and the backing bar 14 is supported by the backing bar 16 under pressure, and then the piston rod 12 is replaced with the original state. The thrust forces the punch 48 against the spring 51.

When the rear end of the one-hole punch 48 is pushed forward and pressed against a predetermined portion of the surface of the workpiece 36, the workpiece 36 is fixed to the upper surface by the pressing force of the workpiece 36. The movable table 45 is forcibly slid forward in the direction of the wall plate 53 against the spring 47 below it, and the workpiece 36
Since the back surface is pressed against the receiving die 55 and is stopped, the punch tip portion 48a penetrates into the surface of the workpiece 36,
One hole 38 having a predetermined diameter is opened.

When this is finished, the cylinder 9 is reversely operated to retract the one-hole punch 48 to the original position by the spring 51, and the movable table 45 is also moved to the spring 4.
7, the work piece 36 is also separated from the receiving die 55 (see FIG. 7).

Then, since the other one hole 38 is opened by the one hole punch 48, the moving table 45 is laterally predetermined by the motor 43 through the slide plate 40 in the position where the cylinder 9 remains as it is. After sliding a distance, a predetermined portion of the workpiece 36 on the moving table 45 is aligned with the punch tip 48a, and one hole 38 is opened in the same manner as described above, and the cylinder 9 is returned to its original position by the reverse operation.

Next, since the two holes 37, 37 are opened by approaching both ends of the work piece 36 by the two hole punch 49, the motor 9 is driven again to move the cylinder 9 laterally to the position corresponding to the punch 49. Then, the workpiece 36 is slid in a horizontal direction and stopped, and two holes 37, 37 are opened at predetermined positions by combining the lateral slide operation of the workpiece 36 in the same manner as the one hole 38.

Finally, again by the motor 5, the cylinder 9 is laterally slid to the position of the punch 28 for press-fitting.
Similarly to the first embodiment, the short pin 24 is press-fitted into the two single holes 38, 38 that were previously opened. Also in this case, the work piece 36 itself is slid laterally by the drive of the motor 43 so that the one hole 38 is aligned with the tip of the press-fitting punch 28 (see FIG. 8).

When the work piece 36 is slid laterally, the back surface of the work piece 36 is separated from the receiving metal fitting 54 and the receiving dies 55, 56 due to the presence of the spring 47 below the moving table 45. And each punch 28,4
8 and 49 are springs 31 and 5 which are respectively wound around the tips.
Since it is retracted by 1, 52, there is no hindrance to the lateral movement of the workpiece 36.

According to this apparatus, in addition to the lateral movement of the cylinder 9, the workpiece 36 itself is also laterally moved. Therefore, unlike the apparatus of the first embodiment, a desired position of the workpiece 36 is obtained. It is possible to continuously perform operations such as opening a plurality of holes of different types, further press-fitting arbitrary parts into the holes, or caulking the press-fitted parts to prevent them from coming off. It is possible to perform various press workings on a long work piece in a space-saving manner.

Since the motors 5 and 43 used for lateral movement of the cylinder 9 and the workpiece 36 need to be stopped at their respective accurate positions, a servomotor or a brake motor is used to perform numerical control. To drive. Further, in order to perform various press work continuously, it goes without saying that the component supply magazine and each punch can be exchanged with other ones depending on the work contents.

[0040]

The device of the present invention is as described above,
Since the press cylinder is configured to be able to move laterally freely, by placing various punches such as a part press-fitting punch and a punch for punching in front of the cylinder,
It is possible to automatically and continuously perform different types of press working operations in a desired order with one cylinder for one work piece.

Moreover, in the device of the present invention, when the tip of the piston rod is pressed against the rear end of the punch due to the operation of the press cylinder, the spring-supported cylinder retreats against the spring and is fixed to the rear. Since the original press force can be exerted for the first time after the movement is stopped by hitting the received metal, the mounting base that is slidably movable in the lateral direction where the cylinder is installed is being pressed. Since almost no load is applied, there is no problem even if a precise slide movement mechanism is adopted for the mounting base. Further, when the cylinder is moved laterally, the cylinder is separated from the receiving member by the spring, and there is no obstacle on both sides in the sliding direction of the cylinder, so that the cylinder can be moved laterally smoothly and accurately. You can do it.

Further, in the apparatus of the present invention, in addition to the lateral movement of the press cylinder, the workpiece itself can be laterally moved by the same moving mechanism, so that a plurality of holes having different diameters can be formed. , It is possible to automatically perform completely different press work, such as press-fitting arbitrary press-fitted parts and crimping the press-fitted parts, and move the press cylinder and the work piece in parallel with each other. By doing so, it becomes possible to perform various press work quickly and continuously with a single press cylinder, even with a long work piece, in a space-saving manner.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a cylinder self-propelled pressing device according to the present invention.

FIG. 2 is a side view of the device shown in FIG.

FIG. 3 is an explanatory view of the operation of the apparatus of FIG. 1, showing a state at the time of starting the operation of the press cylinder.

4 is an explanatory view of the operation of the apparatus shown in FIG. 1, showing a state in which the press cylinder is retracted.

5 is an explanatory view of the operation of the apparatus of FIG. 1, showing a state in which the piston rod of the press cylinder is advanced by the original thrust force and the component is press-fitted into the workpiece.

FIG. 6 is a perspective view showing another embodiment of the cylinder self-propelled press device according to the present invention, in which case the workpiece itself can be laterally moved.

7 is an explanatory side view of the apparatus of FIG. 6, showing a state in which a hole is punched in a workpiece by a punch.

8 is a partial explanatory view of a side surface of the apparatus shown in FIG. 6, showing a state in which parts are press-fitted into a workpiece.

9 is a perspective view showing an example of a work piece into which different types of parts are to be press-fitted by the apparatus of FIG. 1. FIG.

FIG. 10 is a perspective view showing an example of a workpiece to be punched and press-fitted with the device shown in FIG.

[Explanation of symbols]

 1-Slide Plate 2-Base 3-Guide Rail 4-Sliding Plate 5-Motor 6-Screw Shaft 7-Moving Hardware (Screw Shaft Biting Alloy) 8-Cylinder Mount 9-Press Cylinder 10-Guide Rod 11- Compression coil spring 12-Piston rod 13-Cylinder bottom plate (cylinder rear frame plate) 14-Attachment 15-Support plate 16-Batch 17-Workpiece 18-Hole 19-Hole 20-Hole 21-Magazine (short pin 22-Magazine (for stepped pin) 23-Magazine (for bearing) 24-Short pin 25-Stepped pin 26-Bearing 27-Support 28-Press-fitting punch (for short pin) 29-Press-fitting punch (stepped) 30-Press-fitting punch (for bearing) 31-Compression coil spring 32-Holder for press-fitting component 33-Compression coil spring 34-Stopper 35 -Rod tip hammer part 36-Workpiece 37-2 hole 38-1 hole 39-Guide rail 40-Slide plate 41-Sliding plate 42-Moving hardware (screw shaft alloy) 43-Motor 44-Screw shaft 45-moving table 46-guide rod 47-compression coil spring 48-1 hole punch 49-2 hole punch 50-standing support plate 51-compression coil spring 52-compression coil spring 53-wall plate 54-receiver Metal fitting (for short pin press-fitting punch) 55-Receiving die (for one hole) 56-Receiving die (for two holes) 57-Fixing stand

Claims (5)

[Claims] 1. A mounting base for mounting and fixing a press cylinder is constructed so as to be slidable in a lateral direction and is biased by a spring so as to move slightly forward. A plurality of punches for punching holes are arranged in parallel in the sliding direction of the cylinder, the lateral movement of the cylinder is stopped at a predetermined punch position, and then the cylinder is operated so that the tip of the piston rod is the rear end of the punch. The cylinder is retracted against the spring by pressing it against the spring, and it is pressed against the receiving plate fixed to the back to stop the retreat, thereby advancing the piston rod with the original thrust and advancing to the work piece. On the other hand, a predetermined press working is carried out, and then the mounting base is slightly advanced by the above-mentioned spring force by the reverse operation of the pressing cylinder to separate the rear end of the cylinder from the backing holder, and then the series. The punch is moved laterally to the next punch position to perform the next press work, and in this way, different press work is performed by each punch by laterally moving / stopping the cylinder and operating the cylinder. Pressing method using self-propelled cylinder. 2. The work piece is slidable in the lateral direction like the cylinder, and is urged and held by a spring so as to be slightly moved to the press cylinder side,
A method in which a press cylinder and a workpiece are moved in parallel to each other to form one or a plurality of holes, and then a predetermined press-fitted part is press-fitted into the hole, or the press-fitted part is further caulked. The press method described. 3. A mounting base, in which a press cylinder is installed and fixed on the upper surface, is mounted on a slide plate that is inserted and meshed with a screw shaft that is rotationally driven by a motor and is slidable in the left and right directions on a guide rail. The mounting base is configured to be slidable in the front-back direction by being inserted and supported on the lower side by a guide rod that is extended back and forth on the slide plate, and a coil spring provided on the lower side of the mounting base. When the tip of the piston rod of the cylinder is urged in the forward direction with respect to the slide plate, and the tip of the piston rod of the cylinder is pressed against the rear ends of a plurality of punches arranged in front in parallel with the slide direction of the cylinder. A cylinder self-propelled press device, characterized in that a receiving plate for reciprocating and applying pressure against the spring is arranged and fixed to the cylinder. 4. Each of the punches is horizontally supported by a supporting plate so as to be slidable back and forth at the same height position, and a compression coil spring is wound around the rear end of the punch to install the punch in front. When the punch is for component press-fitting, the holder for press-fitting component is held at the punch tip end portion so as to be slidable back and forth, and the punch tip end portion is rearward of the holder. 4. The press according to claim 3, wherein the press coil spring is wound so that the holder is biased to push the holder forward and can receive the press-fitted parts sent out from the press-fitted parts supply magazine arranged above. apparatus. 5. The apparatus according to claim 3, wherein the work piece is also configured to be laterally movable facing the cylinder by the same structure as the slide mechanism of the press cylinder, and the work piece holds the work piece. A cylinder self-propelled press machine that is biased by a spring provided on the lower side of the moving table so as to approach each punch tip.