JPH07314190A - Press machine - Google Patents

Abstract

PURPOSE:To facilitate setting of works and checking of erroneous insertion by rotating an upper mold by a rotating mechanism consisting of a rack and a pinion. CONSTITUTION:This press machine has a lower mold 22 at the base of a base body 21 having an approximate L shape. A cylinder 23 moves the upper mold 24 linearly in a vertical direction in correspondence with the lower mold 22. A shaft 25 holding the upper mold 23 is integrally connected to the pinion 28 for rotationally moving the rack 27 disposed at the base body 21 to cooperatively rotate the pinion 28 and the upper mold 24. Directing of the positioning and fixing surface of the upper mold 24 upward is made possible in the case of positioning and fixing the work to the upper mold 24 and directing of the fixing surface downward is made possible in the case of coupling the work. Mounting of the work is facilitated and the erroneous insertion of the work is lessened. A light source is disposed in a position corresponding to the opening position when the work is inserted, by which the correct insertion and erroneous insertion of the work are checked.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a press machine for joining a plurality of works by press fitting or the like.

[0002]

2. Description of the Related Art FIG. 4 is a front view for explaining the structure of a conventional press machine, and FIG. 5 is a side sectional view showing an example of works joined by the press machine shown in FIG.

A conventional press machine shown in FIG. 4 is a lid-tightening press machine having a base body 1 having a substantially L shape in a side view, the base body 1 having a lower die 2 on a bottom surface thereof. An upper mold 4 is provided above the body 1 at a position corresponding to the lower mold 2 through the cylinder 3 from above.

The lower mold 2 is for positioning and fixing the back cover 5 shown in FIG. 5, and the cylinder 3 is for the upper mold 4.
Is to move the upper and lower linear motions, and the upper mold 4 is
The front cover 6 shown in FIG. 5 is positioned and fixed.

The upper mold 4 is provided with a magnet 7 for fixing the front cover 6.

As shown in FIG. 5, the shapes of the workpieces to be joined by the lid tightening press machine are such that the chassis 8 is sandwiched between the front lid 6 and the back lid 5 and fixed. A portion 9 is provided, and a kick processing portion 10 corresponding to the cover ring portion 9 is provided on the front lid 6 and the back lid 5, so that the front lid 6 is attached to the chassis 8.
When the back lid 5 is pushed in, the kicking portions 10 of the lids 5 and 6 bit into the cover ring portion 9 of the chassis 8 due to the spring property of the lids 5 and 6, and the chassis 8, the front lid 6 and the back lid 5 are covered.
And are combined.

The operation of the conventional lid-fastening press will be described below.

First, the back cover 5 is set on the lower mold 2, and then the chassis 8 is set on the back cover 5. Next, the front cover 6 is placed on the upper mold 4 in which the magnet 7 is embedded.
To set. Then, by driving the cylinder 3, the upper die 4 is lowered, the kick processing portion 10 of the front lid 6 set on the upper die 4 and the cover ring portion 9 of the chassis 8 are coupled, and further below the chassis 8. The kick processing portion 10 of the back lid 5 and the cover ring portion 9 of the chassis 8 that have been set are coupled to each other, and the lowering of the upper die 4 is stopped. Then, the coupled chassis 8 and the two pigs 5, 6 drive the cylinder 3 upward by the body held by the upper mold 4 by the magnet 7 of the upper mold 4. After that, the worker completes the work by removing the both pigs tightening completed products attached to the upper mold 4.

In the above-mentioned conventional example, the case where there are three works has been described, but as another conventional example, as shown in FIG.
Explain four work pieces. This conventional example will be described only on the points different from the above conventional example. It should be noted that the same reference numerals are given to those having the same function.

As shown in FIG. 6, the four workpieces used in the pressing machine of this conventional example are workpieces 11a, 11b and 1
1c and 11d are combined, the work 11a has a projection 12 on one surface, the work 11c has a projection 12 on both surfaces, and the works 11b and 11d have a through hole 13. The protrusion 12 and the through hole 13 are configured to fit with each other. Incidentally, the through hole 13
Alternatively, a hole may be provided instead of.

As the structure of the press machine, the lower mold 14 has a guide plate structure for sequentially stacking and positioning and fixing the works 11d, 11c and 11b, and the upper mold 3 has the work 1
The structure for positioning and fixing 1a becomes empty. The works 11a, 11b, 11c and 11d are arranged so that the centers of the projections 12 or the through holes 13 (or holes) are aligned.

The operation of the pressing machine is the same as in the conventional example, in which the work 11a is positioned and fixed on the upper mold 4, and the works 11d, 11c and 11b are sequentially stacked and fixed on the lower mold 2, Upper mold 4 by cylinder 3
Is lowered, and the projection 12 and the through hole 13 (or hole) are press-fitted to each other so that all the works 11a, 11 are
b, 11c and 11d are combined.

[0013]

However, the above-described press machine shown in FIGS. 4 and 6 has the following problems.

That is, in the above press machine, it is necessary to attach the front cover 6 or the work 11a from the lower side to the upper mold 4 having the work fixing portion facing downward, and it is very difficult for the operator to set the attachment. Further, since it was difficult to confirm the setting-like body, it took a long time to set, and the tightening failure or the like due to the reverse insertion of the front cover 6 or the work 11a was likely to occur.

FIGS. 7A and 7B are views for explaining erroneous insertion of the work shown in FIG. 5, FIGS. 7A and 7B are a plan view and a cross-sectional view showing the normal insertion, and FIGS. d) A plan view and a cross-sectional view showing reverse insertion (reversed by 180 degrees).

As shown in the figure, the chassis 8 and the front cover 6 and the rear cover 5 can be mounted even when they are turned 180 degrees from the normal mounting state. However,
An adjustment component 14 is provided in the chassis 8, and the adjustment member 14 is attached to at least one of the front lid 6 and the back lid 5 in a state where the chassis 8 and the front lid 6 and the back lid 5 are combined. A window 15 for adjusting the component 14 is provided, and when the positional relationship between the adjusting component 14 and the window 15 is reversed by 180 degrees, the positions of both of them do not correspond and are displaced. For this reason, for example, when the front lid 6 having the window 15 is inverted 180 degrees into the upper mold 4 and inserted backward, the correspondence between the window 15 and the adjustment component 14 of the chassis 8 cannot be established, and the lid 5, It becomes impossible to adjust the adjustment component 14 after tightening 6.

It is an object of the present invention to provide a pressing machine which facilitates setting of a work and confirmation of erroneous insertion by providing a rotating mechanism for rotating the upper die.

[0018]

A pressing machine according to the present invention joins a plurality of works, and has a substantially L-shaped base body and a plurality of the work pieces arranged on the bottom surface of the base body. Inside, a lower mold for positioning and fixing all but the work arranged at one end, and a position corresponding to the lower mold from above the base body, among the plurality of works fixed via a cylinder, It is characterized by comprising an upper die for positioning and fixing a work arranged at one end and a mechanism for rotating the upper die.

The mechanism for rotating the upper die is
It comprises a rack fixed to the base body and provided in correspondence with the vertical movement of the cylinder, and a pinion that interlocks with the upper mold and rotates on the rack to convert the vertical movement of the cylinder into a rotary movement. It is characterized by.

Further, at least one of the upper die and the lower die is for positioning and fixing a work having an opening at a position that is not point-symmetrical, and corresponds to the opening position when the work is properly inserted or erroneously inserted. It is characterized in that a light source is provided at a position to be turned on.

[0021]

According to the above construction, the press machine according to the present invention has a mechanism for rotating the upper die. Therefore, when the workpiece is positioned and fixed on the upper die, the positioning fixing surface of the upper die is moved upward. The fixed surface can be directed downward when the workpieces are joined together.

The mechanism for rotating the upper die is
It comprises a rack fixed to the base body and provided corresponding to the vertical movement of the cylinder, and a pinion that is interlocked with the upper mold and rotates on the rack to convert the vertical movement of the cylinder into a rotary movement. This makes it possible to easily convert the vertical movement of the cylinder into a rotational movement.

Further, at least one of the upper mold and the lower mold is for positioning and fixing a work having an opening at a position which is not point symmetrical, and corresponds to the opening position when the work is properly inserted or erroneously inserted. Since the light source is provided at the position where the work is inserted, the light source can be confirmed in one case when the work is inserted incorrectly or inserted correctly, and the light source cannot be confirmed in the other case. You can confirm correct insertion and incorrect insertion.

[0024]

FIG. 1 is a diagram showing an embodiment of the present invention,
(A) is a front view and (b) is a side view.

As shown in FIG. 1, the pressing machine of the present embodiment is a lid tightening pressing machine, and has a base body 21 having a substantially L-shape in side view, and the base body 21 is at the bottom of the L-shape. A lower die 22 is provided on the corresponding bottom surface, and a cylinder 23 is provided on the side where the bottom surface extends from above the base body 21.
Reference numeral 3 is for linearly moving an upper mold 24 arranged at an upper position corresponding to the lower mold 22 in a vertical direction. The upper mold 24 is rotatably held by a shaft holding block 26 by a shaft 25. The shaft holding block 26 is directly connected to the cylinder 23. Also,
The base body 21 includes a rack 27 extending from the upper side to the lower side, the shaft 25 is integrally connected to a pinion 28 rotating on the rack 27, and the pinion 28 and the upper mold 24 are rotated in association with each other. It is configured.

The lower mold 22 is for positioning and fixing the back cover 5 shown in FIG. 5, and the cylinder 23 is for moving the upper mold 24 in a vertical linear motion.
4 is for positioning and fixing the front cover 6 shown in FIG. 5, the shaft 25 is for interlocking the upper mold 24 and the pinion 28, and the shaft holding block 26 is for rotatably holding the shaft 25. The rack 27
The pinion 28 is for adding a rotary motion to the linear motion of the upper mold 24.

The upper mold 24 is provided with a McNet 29 for fixing the front cover 6, and the cylinder 23 is driven at a position corresponding to the end of the rack 27 below the base body 21. Stopper 30 for stopping the rotation of the upper mold 24 that is rotating downward due to
Is provided. As the structure for linear movement, a means for enabling the rack 27 to freely move in the vertical direction is provided between the rack 27 and the base body 21. For example, a rack holding plate 27a that is fixed to the base body 21 and cuts a groove longer than the longitudinal direction of the rack in the longitudinal direction on the side where the rack 21 is arranged, and guides the rack 27 in the groove to move the rack 27 in the vertical direction. To provide.

Further, as shown in FIG.
A work 32 having an opening 31 at a position that is not point-symmetrical is positioned and fixed to at least one of the lower mold 22 and a position corresponding to the position of the opening 31 when the work 32 is inserted normally or reversely. For example, by providing the light source 33 such as an LED, the light source 33 can be confirmed in one case when the work 32 is reversely inserted or properly inserted, and the light source 33 cannot be confirmed in the other case. Thus, it is possible to confirm the normal insertion and the reverse insertion of the work 32, and it is possible to prevent the reverse insertion of the work 32. FIG. 2 shows the light source 33 so that it can be confirmed at the time of normal insertion, and (a) and (b) are a plan view and a cross-sectional view showing 180 degrees reverse insertion, and (c) and (d) normal insertion. It is the top view and sectional drawing which show time.

If possible, the opening 31 may be shared with the window 15 described in FIG.

The operation of the lid clamping press of this embodiment will be described below with reference to FIGS. 3 (a) to 3 (e). 3 (a) to 3 (e) are side views. The work will be described using the works 5, 6, and 8 shown in FIG.

First, the back cover 5 is set on the lower mold 22. At this time, the light source 33 is turned on on the bottom surface of the lower mold 22, and when the back cover 5 is set at the proper position, the light source 33 is hidden behind the back cover 5 so that it cannot be seen and is set at the opposite position. The light source 33 is an opening (not shown) in the back cover 5.
More light leaks.

Then, the chassis 8 is set on the back cover 5. At this time, when the chassis 8 is reversely inserted, the leads (not shown) of the chassis 8 hit the back cover 5 and cannot be inserted.

Next, the front cover 6 is set on the upper mold 24.
At this time, the upper mold 24 has the setting surface facing upward so that the front cover 6 can be easily set. The upper mold 24 also includes a light source 33, like the lower mold 22. Since the magnet 29 is embedded in the upper mold 24, the front cover 6 is held by the upper mold 24.

After that, the cylinder 23 is driven, the shaft holding block 26 begins to descend, and the pinion 28 and the upper mold 2
4 and 4 start rotating at the same time. At this time, the rack 27 is stopped at the top dead center. <The above, refer to FIG. 3 (a)> After that, the upper mold 24 rotates to a position where the front cover 6 fixed to the upper mold 24 and the back cover 5 fixed to the lower mold 22 face each other, and the facing position Then, the upper mold 24 is the stopper 30.
The upper mold 24 and the pinion 28 stop rotating.
<See FIG. 3B> After that, the cylinder 23 tries to descend to the bottom dead center. Therefore, the pinion 28, the upper mold 24, and the rack 27 descend while the rack 27 is engaged with the pinion 28, and the upper mold 24
The kick processing portion 10 of the front lid 6 held on the lower lid 22 and the back lid 5 set on the lower die 22 is attached to the cover ring portion 9 of the chassis 8.
Is bitten and coupled to. <Refer to FIG. 3 (c)> The joined works are raised in the state of being held by the magnet 29 of the upper die 24 in the above-described reverse step, and further rotated upward to return to the origin. <See FIGS. 3 (d) and 3 (e)> After that, the worker completes the work by removing the both pigs tightening completed products attached to the upper mold 24.

In this embodiment, the rack 27 and the pinion 28 are used as the mechanism for rotating the upper mold 24.
The mechanism is not limited to the above-mentioned mechanism, and any device that rotates the upper mold 24 may be used. For example, a power source for rotating the upper mold 24 may be separately provided.

As described above, according to the lid tightening press of this embodiment, when the work is positioned and fixed to the upper die 24 by providing the mechanism for rotating the upper die 24, The positioning fixing surface can be directed upward, and when the works are joined, the fixing surface can be directed downward, which facilitates attachment of the work and reduces erroneous insertion of the work.

A mechanism for rotating the upper mold 24 is fixed to the base body 21 and is provided with a rack 27 corresponding to the vertical movement of the cylinder 23, and the upper mold 2
4 and the pinion 28 that rotates on the rack 27 and converts the vertical motion of the cylinder 23 into a rotary motion, the vertical motion of the cylinder 23 can be easily converted into a rotary motion. It is not necessary to use a separate power source for rotating motion.

Further, at least one of the upper die 24 and the lower die 22 is for positioning and fixing a work having an opening 31 at a position which is not point-symmetrical, and the opening when the work is properly inserted or erroneously inserted. Since the light source 33 is provided at the position corresponding to the position, the light source 33 can be confirmed in one of the cases when the work is inserted by mistake or the normal insertion, and the light source 33 can be confirmed in the other case. As a result, it is possible to confirm the correct insertion and the incorrect insertion of the work, and prevent the incorrect insertion of the work.

Also, when other works, for example, the works 11a, 11b, 11c and 11d shown in FIG. 6 are joined together, the lower mold 22 has the same construction as the above embodiment.
By changing the shape of the lower mold 2 shown in FIG.
Can handle. In addition, the number of works is not limited to the above-mentioned number, and it is also applicable to a case where a large number of works are combined.

[0040]

As described above, according to the press machine of the present invention, since the mechanism for rotating the upper die is provided,
The work can be easily attached, the erroneous insertion of the work can be reduced, the work time can be shortened, and the coupling failure due to the erroneous insertion can be prevented.

Further, a mechanism for rotating the upper die is
It comprises a rack fixed to the base body and provided corresponding to the vertical movement of the cylinder, and a pinion that is interlocked with the upper mold and rotates on the rack to convert the vertical movement of the cylinder into a rotary movement. As a result, the vertical movement of the cylinder can be easily converted into rotational movement, and it is not necessary to use a separate power source for rotational movement.

Further, at least one of the upper die and the lower die is for positioning and fixing a work having an opening at a position which is not point symmetrical, and corresponds to the opening position when the work is properly inserted or erroneously inserted. Since the light source is provided at the position where the work is inserted, it is possible to confirm the correct insertion or the incorrect insertion of the work, and prevent the incorrect insertion of the work.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of the present invention, (a) is a front view and (b) is a side view.

2A and 2B are views for explaining an erroneous insertion prevention mechanism of a work, FIGS. 2A and 2B are a plan view and a cross-sectional view showing a reverse insertion, and FIGS. FIG. 3 is a plan view and a sectional view showing

FIG. 3 is a diagram for explaining the operation of the press machine shown in FIGS. 1 and 2.

FIG. 4 is a front view showing a conventional example.

5 is a side sectional view for explaining the shape of a work used in the pressing machine shown in FIG.

FIG. 6 is a front view showing another conventional example.

FIG. 7 is a diagram for explaining erroneous insertion of a work,
(A) And (b) is the top view and sectional drawing which show the time of normal insertion, and (c) and (d) are the top view and sectional drawing which show the time of reverse insertion.

[Explanation of symbols]

 21 Base Body 22 Lower Model 23 Cylinder 24 Upper Model 27 Rack 28 Pinion 33 Light Source

Claims (3)

[Claims] 1. A base body having a substantially L-shape for joining a plurality of works, and a work arranged on the bottom surface of the base body and arranged at one end of the plurality of works. A lower die for positioning and fixing all but the above, and a work corresponding to the lower die from above the base body and fixed through a cylinder for positioning the work arranged at one end of the plurality of works. A press machine comprising an upper die for fixing and a mechanism for rotating the upper die. 2. A mechanism for rotating the upper die is a rack fixed to the base body and provided in correspondence with the vertical movement of the cylinder, and a mechanism which is interlocked with the upper die and rotates on the rack. The press machine according to claim 1, comprising a pinion for converting vertical movement of the cylinder into rotational movement. 3. At least one of the upper mold and the lower mold,
A work for positioning and fixing a work having an opening at a position not point-symmetrical, wherein a light source is provided at a position corresponding to the opening position when the work is properly inserted or erroneously inserted. Or the press machine described in 2.