JPH03285725A - Working device for transfer press - Google Patents

Abstract

PURPOSE:To simplify the work in a working part and to improve the working efficiency by separating an operating part to set a workpiece and a working part to work the workpiece under pressure spatially from each other and reciprocating a worktable between them. CONSTITUTION:The operating part 100 to set the workpiece and the working part 200 to perform a work under pressure are provided at positions spatially far from each other. The worktable 30 can reciprocate between this operating part 100 and this working part 200 a along long rails 11, 12 as the worktable 30 mounts the workpiece. Since sliders having a ball bearing each are clamped between the rails 11, 12 and the worktable 30, smooth reciprocating motion can be performed. Since the operating part 100 and the working part 200 are separated from each other in this way, operation can be performed easily in the operating part and working efficiency can be improved and, further, operation can be performed in safety.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a press processing apparatus, and particularly to a press processing apparatus, in which a workpiece is placed on a first workpiece and a second workpiece applies pressure from above to perform processing. It relates to press processing equipment.

[Conventional technology]

A press processing device is usually used as a device for performing processing such as cutting, sizing, and bending. In this press processing device, the first. A workpiece is placed on top of the second workpiece, and a second workpiece is pressed down from above to perform machining. Generally, a first workpiece is placed on a processing table, and a second workpiece is moved up and down above the processing table. Normally, the second workpiece is moved up and down by compressed air, and several tons of pressure is applied to push the second workpiece down for processing.

[Problem to be solved by the invention]

However, the above-mentioned conventional press processing apparatus has problems such as poor working efficiency and lack of safety. When processing a large number of workpieces one after another, an operator first sets the workpiece on top of a first workpiece and operates compressed air to push down the second workpiece to process the workpiece. Next, the compressed air is operated again to move the second workpiece upward, the processed workpiece is removed, and the next workpiece is set.

By continuing such operations, a large number of workpieces are sequentially processed. However, the work of setting such workpieces has to be carried out within a limited space sandwiched between the second workpiece above and the first workpiece below, resulting in very poor work efficiency. , consuming a considerable amount of time even for experienced workers. [7] If the second work malfunctions during work, the second work will fall onto the worker's hands due to the large pressure of several tons, resulting in a major accident, which is extremely dangerous. .

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a press processing apparatus that has good working efficiency, can ensure sufficient safety, and can perform processing with high precision.

[Means to solve the problem]

(1) The invention of Section 1 of the present application is based on the first
a workpiece, a processing table on which this first workpiece is placed, and a first workpiece.
a second workpiece provided opposite to the workpiece; and a pressurizing body that moves the second workpiece up and down and pressurizes the first workpiece.
In a press processing device that processes a workpiece sandwiched between a second workpiece and a second workpiece, a ball bearing slides on a pair of rails extending from one working section to the other processing section. A moving slider is provided, a processing table with a first workpiece placed on the slider is fixed so that the processing table can reciprocate between the working part and the processing part, and a second workpiece is placed on the slider. The structure is such that the pressure applied by the work is performed in the processing section.

(2) The invention of Section 2 of the present application provides that, in the press processing apparatus according to the first invention, excessive pressure is not applied to the ball bearing of the slider when pressure is applied by the second workpiece. In this way, a support body is further provided to support the processing table from below in the processing section.

(3) The invention of Section 3 of the present application is the press working apparatus according to the first invention described above, which includes a stopper that comes into contact with the work table to stop the movement when the work table moves to the processing section, and a work table that stops the movement of the work table. A position fixing pin that fits into the position fixing hole formed in the position fixing hole and has a tapered portion at the tip is provided at a predetermined position, and with the processing table stopped by the stopper, insert the position fixing pin into the position fixing hole. When this happens, the processing table is moved away from the stopper by the action of the tapered portion, and then the processing table is fixed at a predetermined position.

(4) The invention of Section 4 of the present application provides, in the press working apparatus according to the first invention, a suction means for sucking a part of the workpiece to the second workpiece, and after applying pressure, The second workpiece is moved upward while a part of the workpiece is being sucked, the processing table is moved to the work area, the suction state is released, and a part of the workpiece is dropped, and a part of this workpiece is transferred to the machine. It is designed so that it can be discharged from

[For production]

(1) In the press processing apparatus according to the invention of Section 1 of the present application,
A working section for setting a workpiece and a processing section for performing processing by applying pressure are provided at spatially separate positions. The processing table can reciprocate along the rail between the working section and the processing section with the workpiece placed thereon. A slider with ball bearings is sandwiched between the rail and the processing table, allowing smooth reciprocating motion.

Since the working part and the processing part are separated in this way, it becomes easier to work in the working part, improving work efficiency and making it possible to work safely.

(2) In the press processing apparatus according to the invention of Section 2 of the present application,
Since a support body is provided to support the processing table from below, it is possible to prevent excessive pressure from being applied to the ball bearing during processing, thereby protecting the ball bearing and enabling highly accurate processing.

(3) In the press processing apparatus according to the invention of Section 3 of the present application,
After the processing table that has moved to the processing section is stopped with a stopper, positioning is performed by inserting a position fixing pin with a tapered portion at the tip into a position fixing hole formed in the processing table. Machining can be performed with the table fixed at the optimal position in the processing section, allowing for highly accurate processing.

(4) The press processing device according to the invention of Section 4 of the present application is
Since the second workpiece is provided with a suction means for sucking a part of the workpiece, the second workpiece can be moved upward while the part of the workpiece/object is sucked after processing. and,
After the first workpiece is moved to the working section, the suction state is released and a part of the workpiece is allowed to fall, and the part of the workpiece is discharged from the apparatus. Therefore, the work of discharging the workpiece can be automatically performed, and work efficiency can be improved.

〔Example〕

The present invention will be described below based on illustrated embodiments. FIG. 1 is a top view of a transfer press processing apparatus according to an embodiment of the present invention, FIG. 2 is a side view of the same apparatus, and FIG. 3 is a front view of the same apparatus. In the top view of Figure 1, two rails 1
1 and 12 are installed parallel to each other in the lateral direction of the figure. Sliders 21 to 24 are placed on these two rails.

Although the structure of the rail and the slider will be described in detail later, each of the sliders 21 to 24 has a ball bearing inside and can smoothly reciprocate on the rail.

A processing table 30 is fixed on top of these four sliders. Therefore, the processing table 30 is movable along the rails in the left and right directions in the figure. On both sides of the processing table 30, position fixing holes 31 and 32 are formed as through holes for the processing table 30. The position fixing holes 31 and 32 are used to fix the position of the processing table 30, as will be described later.

A sliding rod 33 is attached to the right side of the processing table 30 in the figure. The right end of this sliding rod 33 is connected to an air pump (not shown), and by operating this air pump, the processing table 30 can be caused to make a reciprocating sliding movement along the rail. In this specification, the left half of the figure will be referred to as the working section 100, and the right half will be referred to as the processing section 200. The processing table 30 can reciprocate between the working section 100 and the processing section 200 along the rail.

In the figure, the processing table 30 is shown stopped at the working section 100, but at the same time, the position when stopped at the processing section 200 is indicated by a dashed line 30'. A first workpiece 40 is fixed to the upper surface of the processing table 30. In this embodiment, the first workpiece 40 constitutes a female mold, and has four parts 40A formed on its upper surface. Further, the processing section 200 is provided with cylindrical supports 51 to 54 for supporting the processing table 30 from below.

The above configuration will become clearer when referring to the side view of FIG. 2. In FIG. 2, the rail 12 located on the front side extends left and right, and the sliders 22 and 24 are placed on it.
Furthermore, a state in which a processing table 30 is placed on it is shown.

A sliding rod 33 is attached to the processing table 30,
A first work 40 is fixed to the upper surface. Further, the positions of the position fixing hole 32 and the recess 40A are indicated by broken lines. Similar to FIG. 1, the position when the processing table 30 is moved to the processing section 200 is indicated by a dashed line 30'. This dashed line 30' clearly shows the positional relationship between the processing table 30 and the supports 51 to 54 (only 52 and 54 are visible in the figure).

A pressure body 60 is provided above the processing section 200, and a second workpiece 70 is fixed to the lower surface of the pressure body 60. In this embodiment, the second workpiece 70 constitutes a male mold, and a convex portion 70A is formed on the lower surface. In addition, in FIG. 1, illustration of the pressurizing body 60 and the second workpiece 70 is omitted to avoid complicating the drawing.

The configuration of this device will become clearer by referring to the front view of FIG. In FIG. 3, a pair of rails 11 and 12 are placed in parallel, sliders 21 and 22 are placed on them, and a processing table 30 is further attached thereon. A first workpiece 40 is fixed to the upper surface of the processing table 30. Furthermore, the positions of the position fixing hole 3132 and the recess 40A are indicated by broken lines. It is also clearly shown that supports 51, 52 are provided at positions that support the processing table 30 from below. A pressurizing body 60 is provided above, and a second work 70 having a convex portion 70A is fixed to the lower surface thereof.

The above explanation will help you understand the overall configuration of this device. Note that the pressurizing body 60 can be driven in the vertical direction of the drawings in FIG. 2 and FIG. This drive is performed by compressed air, and especially when driving downward, the pressurizing body 60 is moved with a pressure of several tons.
can be pushed down. Therefore, the processing section 200
, the second work 70 is placed on the first work 40,
It will come down with several tons of pressure. In addition,
Such a drive mechanism for the pressurizing body 60 is a well-known technique widely used in conventional press processing apparatuses, and therefore its description will be omitted in this specification. Therefore, in an actual device, in addition to the illustrated components, a cylindrical rod serving as a guide for moving the pressurizing body 60 up and down and a compressed air supply system for driving the pressurizing body 60 are required. be.

Moreover, illustrations of the pedestals for supporting the rails 11, 12 and the supports 51 to 54 are also omitted.

Next, the operation of this device will be explained. The workers are
It is preferable to perform the work while standing at point A in FIG. As mentioned above, in the processing section 200, the pressurizing body 60 descends with a pressure of several tons, so if an arm or the like is accidentally caught, it can cause a serious accident and is extremely dangerous. Therefore, it is safest for the worker to work at point A, which is the farthest position from processing section 200. In addition, in Figure 1, enclosing the entire device in a casing leaves only the windows necessary and sufficient for the work to be performed at point A.
This is preferable in terms of ensuring safety. To perform the work, first, the processing table 30 is brought to the work section 100. As aforementioned,
This is done by controlling the air pump that drives the sliding rod 33. Next, the worker moves the workpiece to the first
The workpiece 40 is placed and fixed on top of the workpiece 40. In the conventional device, the second workpiece 70 was located above the first workpiece 40 at this time, but in the present device, there is sufficient space above the first workpiece 40, so the work can be done easily. It's very easy. When the setting of the workpiece is completed, the air pump is driven to move the processing table 30 from the working section 100 to the position of the processing section 200.

Then, the pressurizing body 60 is lowered onto the processing table 30 under high pressure using compressed air. Thereby, the workpiece is pressed between the first workpiece 40 and the second workpiece 70 under high pressure, and desired processing is performed. Subsequently, the pressurizing body 60 is moved upward again, and the processing table 30 is moved back to the processing section 200.
to the position of the working section 100. The worker removes the processed workpiece from the first workpiece 40 at the working unit 100 and sets a new workpiece.

By continuing the above operations, a large number of workpieces will be processed one after another.

In this way, all work such as removing processed objects and setting new workpieces is performed in the working section 100, and the actual processing, which involves danger, is carried out in the processing section 200.
Since the process is carried out at the same time, work efficiency and safety are significantly improved. In addition, in order to further increase safety, a door is provided at the window through which the worker works at point A, and a sensor is installed to detect the opening and closing of this door. It is preferable to add a safety circuit so that the pressurizing body 60 can be lowered only when the fully open state of the door is detected.

The above is the basic configuration of the transfer press processing apparatus according to the present invention, and this apparatus has three additional features. Below, these three additional features will be explained in order.

The first additional feature is that supports 51 to 54 are provided. In order to explain the merits of this feature, first, the state of connection between the rails 11.12 and the sliders 21 to 24 will be explained. As mentioned above, the sliders 2 to 24 are rails due to the action of Hall bearings. It has a mechanism that allows it to slide smoothly over 1 and 12. FIG. 4 shows a front sectional view of the rail 11 and the slider 21. Four grooves are formed in the upper part of the rail 11, and similar grooves opposite to these grooves are formed in the inner surface of the slider 21. Balls 21B are inserted between both grooves, and as these balls 21B roll within the grooves, the slider 21 slides smoothly on the rail 11. Such a combination of a rail and a slider is generally sold as a linear motion system (for example, LM Guide (registered trademark) of THK Corporation is known). As described above, the sliding mechanism using ball bearings has the advantage of being able to perform smooth reciprocating motion along the rail, but problems arise when it is incorporated into a press working device. The problem is that ball bearings are weak against loads. As mentioned above, in the processing section 200, the pressurizing body 60 descends with a load of several tons. This load results in being applied to the processing table 30 and further to the sliders 21-24. If such a large load is applied to the slider, it may cause damage to the ball bearing. That is, the ball 21B is deformed beyond its elastic deformation limit, causing distortion in roundness and being unable to roll smoothly on the rail.

In order to solve such problems, the processing section 200 is provided with supports 51 to 54. The device of this embodiment uses four cylindrical members as supports. The supports 51 to 54 serve to support the processing table 30 that has been moved to the processing section 200 from below. Therefore, the configuration is such that the lower surface position of the processing table 30 and the upper surface position of the supports 51 to 54 match. However, in reality, between the two
A gap of 0.005 to 0.02 mm is provided as a clearance, and the processing table 3 has been moved to the processing section 200.
It is preferable to prevent the lower surface of the support members 51 to 54 from colliding with the two parts of the supports 51 to 54. The processing table 30 is the support body 51
The condition supported by .about.54 is clearly shown in FIG. In this way, if the processing table 30 is supported from below by the supports 51 to 54, all of the several tons of load that is applied due to the descent of the pressurizing body 60 is transferred to the supports 51 to 54.
4, the receiver is stopped, and no load is applied to the sliders 21-24. In this way, from the load during machining,
This will protect the ball bearings. Moreover, the supports 51 to 54 also function to improve processing accuracy. That is, by supporting the processing table 30 from below, the processing table 30 can be prevented from bending during processing, and the processing table 30 can always maintain a flat surface.

A second additional feature of this device is the positioning mechanism for the processing table 30. As shown in FIG.
Two position fixing holes 31 and 32 are formed in the. The position fixing holes 31 and 32 are used to stop and fix the processing table 30, which has moved from the working section 1-00 to the processing section 200, at a correct position within the processing section 200. This positioning operation will be explained based on FIG. Figure 5 (a
), there is a stopper 34 at the right end of the processing section 200.
is provided, and when the processing table 30 moves from left to right, it finally collides with this stopper 34 and stops. A position fixing pin 35 is provided above the position fixing hole 32 at this time.

Strictly speaking, the position fixing pin 35 is provided not directly above the position fixing hole 32 at this time, but at a position slightly shifted to the left. The tip of the position fixing pin 35 has a tapered portion 35T.
is formed. Therefore, when the position fixing pin 35 is moved downward, the tapered portion 35T comes into contact with the periphery of the position fixing hole 32, and as shown in FIG.
You can move 0 back slightly to the left. In this way, when the position fixing pin 35 is completely inserted into the position fixing hole 32, as shown in FIG. 5(C), the processing table 3
0 is fixed at a position with a gap d relative to the stop collar 34. Thus, it is important to separate the processing table 30 from the stopper 34 before processing is performed. As shown in FIG. 5(a), when machining is performed with the machining table 30 in contact with the stopper 34, the applied load will escape toward the stopper 34, causing the stress distribution on the workpiece to change. Distortion occurs, causing a reduction in processing accuracy. According to the positioning mechanism of the present device, the processing table 30 can be accurately fixed at the correct position, and moreover, accurate processing without distortion in stress distribution is possible.

A third additional feature of the device is a mechanism for automatically ejecting a portion of the workpiece. For example, in a press processing device that performs cutting processing, unnecessary parts as so-called scraps are generated together with the processed product after processing. In conventional press working machines, workers manually discharge the remaining scraps along with the processed products, but with this apparatus, this remaining scrap can be automatically discharged. This mechanism will be explained based on FIG. FIG. 6(a) is a side view showing the detailed configuration of the second workpiece 70 of this apparatus.

The second workpiece 70 includes a vertically moving body 71, a male die 72 attached to the lower surface of the vertically movable body 71, and a flat suction plate 73. The suction plate 73 is connected to the vertical moving body 71 by a spring member 74. Suction plate 73
A through hole 73A is opened in the center of the hole 73A, and the male die 72 is inserted into the through hole 73A. This situation is clearly shown in the bottom view of FIG. 6(b). Further, a suction hole 73B is provided in the outer peripheral portion of the suction plate 73, and air is suctioned from this suction hole 73'B through a suction pipe 75. Such a second work 70
The cutting operation using is as follows.

First, an operator sets the workpiece 80 on the first workpiece 40 and moves the processing table 30 to the processing section 200 for positioning. Then, when the vertical moving body 71 attached to the lower surface of the pressurizing body 60 descends with a pressure of several tons, the sixth
The workpiece 80 is cut in a state as shown in Figure (C). Although the first workpiece 40 functioning as a female die is not shown here, a workpiece 80 is punched out by the male die 72. At this time, the suction plate 73 is pushed upward (the spring member 74 is compressed).

When the workpiece 80 is cut, a die-cut portion 8 is formed as a product.
It is separated into 0A and a frame portion 80B as the remaining residue. After this, the vertical moving body 71- returns to the original upper position, but when suction is performed from the suction tube 75 during this process, the frame portion 80B opens the suction hole as shown in FIG. 6(d). The suction force from the suction plate 73B lifts the suction plate 73 upward while adhering to the suction plate 73. This suction state is clearly shown in the bottom view of FIG. 6(e) (the frame portion 80B is shown hatched). On the other hand, the die cut portion 80A remains on the first workpiece 40 (not shown). Therefore, when the processing table 30 moves to the working section 100, the die cutting section 80A also moves to the working section 100. Then, when the processing table 30 is moved 17 from the processing section 200, the suction from the suction pipe 75 is stopped. Then, the frame part 80B that was attracted to the suction plate 73 falls, so if a discharge system is provided below, the frame part 80B can be automatically discharged.

In the working section 100, the worker takes out the die-cutting section 80A and sets a new workpiece 80 thereon. In this way, in this device, the frame portion 80B
can be automatically discharged, improving the work efficiency of workers.

〔Effect of the invention〕

(1) In the press processing apparatus according to the invention of Section 1 of the present application,
The work section that sets the workpiece and the processing section that performs machining that applies pressure are spatially separated, and the processing table moves back and forth between them, making the work in the work section easier. This makes it easier to do the work, improves work efficiency, and allows work to be done safely.

(2) In the press processing apparatus according to the invention of Section 2 of the present application,
Since a support body is provided to support the processing table from below, it is possible to prevent excessive pressure from being applied to the ball bearing during processing, thereby protecting the ball bearing and enabling highly accurate processing.

(3) In the press processing apparatus according to the invention of Section 3 of the present application,
After the processing table that has moved to the processing section is stopped with a stopper, positioning is performed by inserting a position fixing pin with a tapered portion at the tip into a position fixing hole formed in the processing table. Machining can be performed with the table fixed at the optimum position in the processing section, allowing for highly accurate processing.

(4) In the press processing apparatus according to the invention of Section 4 of the present application,
A suction means for sucking a part of the workpiece is provided on the second workpiece, and after the first workpiece has moved to the working part, the suction state is released and the part of the workpiece falls. Since a part of the workpiece is discharged from the apparatus, the work of discharging the workpiece can be performed automatically, and work efficiency can be improved.

3 4

[Brief explanation of drawings]

Fig. 1 is a top view of a transfer press processing device according to an embodiment of the present invention, Fig. 2 is a side view of the same device, Fig. 3 is a front view of the same device, and Fig. 4 is a view of the vicinity of the rail of the same device. FIG. 5 is a diagram showing the operation of the positioning mechanism of the same device, and FIG. 6 is a diagram showing the operation of the automatic ejecting mechanism of the same device. 1.1.12...Rail, 21-24...Slider,
21. B...ball, 30...processing table, 31. ．．
32...Position fixing hole, 33...Sliding rod, 34...
...Stopper 35...position fixing pin, 35T...tapered part, 4o...first workpiece, 40A...four parts,
51-54... Support body, 60... Pressure body, 7o...
・Second workpiece, 70A... Convex portion, 71... Vertical moving body, 72... Male mold, 73... Suction plate, 73A...
・Through hole 1.73B... Suction hole, 74... Spring member, 75... Suction pipe, 8o... Workpiece, 80A...
- Die-cutting section, 80B... Frame section, 100... Working section, 200... Processing section.

Claims (4)

[Claims] (1) A first workpiece on which a workpiece is placed, a processing table on which the first workpiece is placed, a second workpiece provided opposite to the first workpiece, and a second workpiece on which the first workpiece is placed. a pressurizing body that moves up and down and pressurizes the first workpiece, and the workpiece sandwiched between the first workpiece and the second workpiece by the applied pressure. In the press processing device for processing, a slider is provided which slides on a pair of rails extending from one working section to the other processing section by the action of a ball bearing, and the first The processing table on which the second workpiece is mounted is fixed so that the processing table can reciprocate between the working section and the processing section, and the pressurization by the second workpiece is performed at the processing section. A transfer press processing device characterized by the following configurations. (2) In the transfer press processing apparatus according to claim 1, in order to prevent excessive pressure from being applied to the ball bearing of the slider when the second work is pressurized, the processing section A transfer press processing apparatus characterized in that a support member is further provided to support the table from below. (3) The transfer press processing apparatus according to claim 1, further comprising a stopper that comes into contact with the processing table to stop the movement when the processing table moves to the processing section, and a position fixing device formed on the processing table. a position fixing pin that fits into the hole and has a tapered portion at the tip thereof, and when the position fixing pin is inserted into the position fixing hole while the processing table is stopped by the stopper; The transfer press processing apparatus is characterized in that the processing table is fixed at a predetermined position after the processing table is moved in a direction away from the stopper by the action of the tapered portion. (4) In the transfer press processing apparatus according to claim 1, the second workpiece is provided with a suction means for sucking a part of the workpiece, and after applying pressure, while sucking the part of the workpiece, moving the second workpiece upward, moving the processing table to a working section, releasing the suction state, dropping a part of the workpiece, and ejecting the part of the workpiece from the apparatus; A transfer press processing device characterized in that it is configured to be able to perform.