JPS5933446B2 - Shape material end processing machine - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a shape material edge processing machine, and in particular, an object of the present invention is to provide a shape material edge processing machine capable of producing and processing a wide variety of various types of shape materials constituting a sash in small quantities. .

Aluminum sashes have become widely used over the past 10 years, mainly for residential use.

These aluminum sashes are made by cutting aluminum shapes of various cross-sectional shapes to the required length, processing both ends as necessary, and assembling them into sashes. In order to form parts, a mold for processing each part is attached to the press, and the processing process is divided into parts.
It also required a large amount of process, man-hours, processing time, etc. Here 7~
From 8 years ago, for example, an automatic processing machine 5 as shown in Figure 9 has been introduced.
9 was developed, but the loading part 6 center notch 61
, central hole part 62, press parts 63, 64, reversal part 6, press parts 66, 67, 68, reversal part 69, press part 70,
A] Each part, such as the no-loading part 71, was arranged in series in the order of the force ζ machining process, and the machine was quite long, with a total length of several meters.

Although this automatic machine is suitable for mass production of a single type of product, it is unsuitable for high-mix low-volume production because it takes time to set up the dimensions of each part, replace processed parts, etc., which increases costs. Recently, many orders for sashes and the like have been custom-made, so there has been an increase in demand for a shape material edge processing machine that is different from the automatic processing machines mentioned above and is suitable for high-mix, low-volume production. The present invention can meet the above-mentioned demands, and provides a processing machine that can perform setup changes for processing different types of profile materials in an extremely short time, and that can make the overall length of the device relatively short. , its configuration will be explained below with reference to the drawings. In the processing machine shown in the drawing, a main body 1 and a main body having a symmetrical structure are arranged symmetrically with respect to a center line 4. A feeding device 5 for a workpiece 2 is arranged between these main bodies. The embodiment shown in FIG. Although the main body to be processed is not shown, it is disposed symmetrically to the main body 1, as described above.

The main body 1 moves on the rails 3, 3 in the direction of the double arrow P in Figures 1 and 2.
It is said to be movable in the left-right direction, that is, in the rail direction, as shown by
The main body 1 on the left side and the main body on the right side (not shown) are symmetrically moved around the center line 4 in response to a change in the length of the workpiece 2, for example, by turning a screw shaft 57, etc., and simultaneously move left and right by a symmetrical distance. The processing mechanism of each main body is all placed on the machine frame 72. As shown in Figs. 1 and 3, the workpiece 2 is placed on the feeder 5 (details omitted). They are arranged in advance, and sent one by one to the chuck 6, where they are fixed at the positions shown in FIGS. 2, 3, and 5.

Although not shown in the drawings, the chuck 6 is provided with a mechanism capable of rotating the workpiece 2 from its fixed position to 900, 1800, etc.

The format of each die 7 for press working at each stage of notching, drilling, etc. shown in FIGS. 2, 3, and 5 is a so-called sub-die, in which the upper die 8 and the lower die 9 are male and female. The upper mold 8 is movable up and down relative to the lower mold 9 via guide posts 10, 10, and is biased by a spring 11 in a direction to separate from the lower mold 9.

When processing the end portion of the workpiece 2, the workpiece 2 is inserted between the upper die 8 and the lower die 9 as shown in FIGS. 3 and 5, and the press shown in FIGS. 12 to descend;
The upper surface 15 of the upper mold 8 is pushed down by the press screw 14 provided on the upper jaw 13 of the press 12. Processing such as forming is performed.

As shown in FIGS. 1, 2, 3, 5, and 6, the mold 7 has guides radially provided at equal intervals in the circumferential direction on the upper surface of the rotary table 16. 17 of the guide grooves 18.

Although the illustrated example in FIG. 1 shows a case in which six sets of molds 7 are incorporated, the number of sets can be selected as appropriate. In the above case, the rotary table 16 rotates by 1,/6 by one rotation of the driving main shaft 19 shown in FIGS. 2 to 5.
They are engaged in a rotational manner.

The rotating table 16 is rotated by the main shaft 19, as shown in FIG.
a clutch 21 that is slidable in the axial direction via a clutch 21; a bevel gear 23 that is loosely fitted on the main shaft 19 so as to be engageable with the clutch 21 via a pawl 22 of the clutch 21; a bevel gear 24, a pin 27 implanted in a disk 26 of a Geneva gear mechanism 25 coaxial with the bevel gear 24, a Geneva gear 28 meshing with the pin 27;
This is done by each engagement of the rotary table 16 which is coaxially connected to the Geneva gear 28. In the illustrated example, six radial grooves 29 are bored in the Geneva gear 28 that engages with the pin 27, and the rotary table 16 rotates 1/2 times per rotation of the main shaft 19.
Repeat 6 intermittent rotation movements. Of course, the intermittent rotational movement of the rotary table 16 relative to the rotation of the main shaft 19 may be achieved by an intermittent rotation mechanism other than the Geneva gear mechanism 25 described above.

Next, the configuration of the press-formed part will be described.

As shown in FIG. 1, each mold 7 is held within a respective guide 17 during the rotational movement of the rotary table 16. As shown in the figure, is the machining position 7a facing the press center 46? The mold 7 rotated and stopped is as shown in FIGS. 2 and 3.
The lower die 9 is engaged in an arcuate engagement groove 30 formed on the lower surface of the lower die 9 with an arcuate engagement engagement claw 32 projecting from the upper end of the die feeding claw body 31 . The aforementioned arc-shaped pawl locking groove 30 is formed in an arc shape that matches the circular locus accompanying the rotation of the rotary table 16, while the locking pawl 32 matches the circular arc shape of the pawl locking groove 30. Since the shape is arcuate, each mold 7 rotates with the rotation of the rotary table 16 with respect to the locking pawl 32 which is stationary within the rotation locus of the pawl locking groove 30, as will be described later. Then, the locking pawl 32 automatically slides into the pawl locking groove 30.

As shown in FIGS. 2, 3, and 5, the die feed claw body 31 has a slide portion 33 horizontally protruding from both sides thereof, and a slide portion 33 horizontally perforated on the upper surface of the machine frame 72. The rotary table 16 can be moved forward and backward in the radial direction by sliding engagement with the slide groove 34 provided therein. The mold feeding claw body 31 is attached to a support shaft 36 via a link 35 forming a pin connection.
As shown in FIG. is rotatably fitted into the support shaft 36 and can be coupled to the support shaft 36 via a lever clutch 40, and the lower arm 3
The lower end of 9 is slidable in a cam groove 43 of an outer cam 42 provided on the main shaft 19 via a roller 41 .

As shown in FIG. 2 and FIG.
It is formed so that it can make one reciprocation in the axial direction of 9.

Furthermore, the engagement and disengagement between the support shaft 36 and the lower arm 39 is carried out by the claw 44 of the lever clutch 40, which can move back and forth only in the axial direction on the support shaft 36, and the claw of the lower arm 39, as shown in FIG. This is done by engaging and disengaging.

Since it has the above-mentioned configuration, the lower arm 39 and lever clutch 4
0 is engaged, the rotation of the main shaft 19 causes the outer cam 42 to rotate, the roller 41 built into the cam groove 43 is moved forward and backward in the axial direction of the main shaft 19, and the lever 37 moves toward the support shaft 36. By the rotation of the lever 37, the mold feeding claw body 31 is moved through the link 35 as described above.
The mold 7 located at the positions 7a and 7a can move forward and backward in the radial direction of the rotary table 16.

A cam groove 43 is formed so that the reciprocating swing of the lever 37 described above is performed only while the mold 7 is in the position 7a.

The ivy mold 7, which has been rotated to the position 7a by the above-mentioned operation,
The assembly is assumed to be pulled out from a retracted position on the guide 17 closest to the rotation axis of the rotary table 16 to a position directly below the set screw 14 located at the press center 46 of the press 12.

On the other hand, the press 12, as shown in FIGS. 1 and 3,
The main shaft 19 is arranged perpendicularly to the main shaft 19, and is lifted and lowered only in the vertical direction by sliding engagement between the lifting guide groove 47 bored in the press 12 and the guide body 48 fixed to the machine frame 72. As shown in FIGS. 2 and 3, the connecting rod 49 is connected to the lower end of the press 12 by a pin, and is engaged with a crank 50 formed on the main shaft 19, and as the main shaft 19 rotates. It is configured to be raised and lowered by a rotating crank 50. As shown in FIG. 2, FIG. 3, and FIG. 46, press 12
is lowered and the set screw 14 comes into contact with the upper surface 15 of the upper mold 8. The press is further lowered and the upper mold 8 is pressed down, and the workpiece 2 is processed between it and the lower mold 9.

After processing the workpiece 2, the press 12 is raised, the lever 37 is swung in the opposite direction, and the die feed claw 31 is horizontally moved leftward in FIG. 2 to the position shown. The mold 7 is retreated to the position shown in the figure 7a and stored in the rotary table 16. After the housing operation is completed, the rotary table 16
is rotated by the Geneva gear mechanism 25, and when the mold 7 for the next processing reaches the position 7a, the rotary table 16 stops rotating, and the next processing step similar to that described above is started.
As mentioned above, one cycle of the rotation of the rotary table 16, the advancement of the mold 7 to the press center 46, the lowering of the press 12 for press working, and the return of the mold 7 to the rotary table 16 after processing is carried out by the main shaft 19. During one revolution of the Geneva gear mechanism 25. This is done by rotating the crank 50, rotating the outer cam 42, etc., and the end processing of the workpiece 2 is completed by sequentially replacing the molds 7 in six steps. Note that another mold 7 is moved to the press center 4 by rotation of the rotary table 16.
A mechanism is provided for rotating the workpiece 2 by 90 or 180 degrees by rotating the chuck 6 from 906 or 180 degrees while the workpiece 2 is brought directly under the mold 7, thereby changing the machining attitude of the workpiece 2 by the die 7. Also possible〇Rotary table 16
The replacement of the mold 7 attached to each guide 17 is shown in Fig. 1,
A position different from 7a in FIG. 2, for example 7b shown in FIG.
At the position 7b, the mold 7 is replaced with another mold 7 on the exchange stand 51, and as the rotary table 16 rotates, the mold 7 that comes to the position 7b is replaced with the mold 7 while the rotary tables 1 and 6 are stopped. Although this is done by manually exchanging items to individuals ≧, it is of course possible to use an automatic exchanging method. As mentioned above, type 7
The replacement can be performed while the rotary table 16 is stopped rotating, and therefore during the press processing operation, so it can be performed almost without stopping the processing operation, and it is possible to replace the mold with a conventional processing machine. The processing machine stop time required for this process is only several tenths of that of the previous one, and the mold end processing machine of the present invention is extremely suitable for processing mold materials for producing a wide variety of small quantities of sash. .

The three main shafts 19 are connected to a motor 52, a belt 53, a flywheel 54 which also serves as a pulley, and a clutch 5.
5, and the main shaft is rotated and stopped by attaching and detaching the clutch 55. As shown in FIG. 2, the clutch 21 attached to the main shaft 19 is
This is used when the rotation of the rotary table 16 is stopped during the rotation of the umbrella.By moving the clutch 21 backward on the main shaft 19 toward the right in FIG. 2, the engagement of the pawl 22 is released, and the umbrella It is used to stop all rotation from the gear 23 to the rotary table 16, and is utilized when processing the workpiece 2 continuously using only a single die 7.

The lever clutch 40 shown in FIG. 5 is used when the mold 7 at the position 7a is not moved forward or backward relative to the guide 17 of the rotary table 16 while the main shaft 19 is rotating, and supports the lever clutch 40 as described above. It is used to disengage the pawls 44 and 45 and stop all rotation from the lever clutch 40 to the mold feeding pawl body 31 by moving the pawls 44 and 45 backward on the shaft 36 in the right direction in FIG. This is utilized when only the rotary table 16 is rotated to replace the mold 7 without changing the mold 7, or when performing so-called empty feeding. When the lengths of the workpieces 2 are different, the mechanism for moving the main body 1 forward and backward in the left and right directions in FIG. 1 is to rotate a screw shaft 57 by a motor 56, as shown in FIG. Accordingly, the main body 1 can be configured to move on the rails 3, 3, and in this case, the main body 1 in a symmetrical position (located on the right side in the figure, not shown) can also move forward and backward in the opposite direction at the same time. can do. The series of steps of intermittent rotation of the rotary table, advance and retreat of the mold, and press working described above are performed during one revolution of the main shaft, and the relationship of the series of steps to the rotation of the main shaft is shown in FIGS. 7 and 8. As shown in the figure.

As shown in Fig. 7, assuming that the process progresses in the direction of arrow R, each work process is performed in the following order: A rotating the rotary table, B stopping the rotary table, C advancing the mold, D pressing, E Each process of mold return (F) and workpiece position correction (F) is performed, and the press work is completed with one rotation of the six spindles. The full stroke from the highest position to the lowest position of the press during one revolution of the main shaft, and therefore one revolution of the crank, is shown in Figures 7 and 8.
Among these, the effective stroke for press working is selected as, for example, a2 110 mm and b = 30 mm. Fig. 8 shows the relationship between the rotation angle of the main shaft and the range of motion of each beam. Line x indicates the rotation stop range of the rotary table, and line Y indicates the range of press working and its lifting range. , and the line Z shows the relationship between the advance/retreat range of the mold and the advance/retreat stroke range. That is, the rotary table rotates in area A and is stationary in other areas. The press is constantly moving up and down, but only in area D is press processing, that is, the upper mold of the mold is moved up and down, and in other areas, the press and the mold do not come into contact. Therefore, the press and mold are separated from each other in the range of movement of the press from a to b. Regarding the advance and retreat of the mold, that is, the area where the mold advances and retreats by the mold feed claw body,
Advancement of the mold takes place in area C and retraction of the mold takes place in area E. Areas B and F are included in the stop area of the rotary table, are outside the press working area, and are areas where the mold does not move forward or backward, and in these areas, the position of the workpiece is corrected and the workpiece is rotated. As mentioned above, the drive system of the profile end processing machine of the present invention is entirely based on the mechanical rotation system, and has the following advantages over the hydraulic drive system of conventional processing machines.

The cycle time from the start to the end of one machining operation is as follows, since the method of the present invention is a single-axis interlocking method using the main spindle 19.
The cycle time of the conventional hydraulic system is about 2 seconds, whereas the cycle time of the conventional hydraulic system is a single drive system via a relay, a valve, and a cylinder, so one machining operation takes time, and takes 3 to 4 seconds.

The processing machine of the present invention requires two small motors to drive the main shafts of both the left and right main bodies, but normally,
Two 0.75kw motors are sufficient; on the other hand, in the conventional hydraulic drive system, the driving power is 5.5~7.5kw.
Requires kW.

That is, the method of the present invention is useful for energy saving. The processing machine of the present invention consists of a small main body 1 in which the members necessary for processing the workpiece 2 are gathered on a machine frame 72, a small operating relay box, and rails 3 on which the left and right main bodies 1 are placed. On the other hand, conventional hydraulic processing machines require a hydraulic generator and a large relay box for various operations in addition to the long processing machine, requiring a large installation space. Requires space.

That is, the processing machine of the present invention helps save space. Furthermore, although the electrical circuit for the processing and repair operations of the present invention is simple,
The hydraulic piping circuit for operating conventional hydraulic processing machines is complex and requires a large amount of space. Further, since the processing machine of the present invention has a simple device, maintenance is easy and maintenance costs are low.However, since the conventional processing machine has a complicated device, maintenance is also complicated and maintenance costs are high.

For the above reasons, the processing machine of the present invention is less expensive than conventional hydraulic processing machines, and has the following features.

In the processing machine of the present invention, when the workpiece 2 is fed to the processing position of the processing machine by the feeding device 5, the workpiece does not change its position, and the molds 7 arranged radially around the rotary table 16 move to the processing position. After completing one machining cycle, the rotary table 16 moves sequentially until the next die 7 comes to the machining position. After the machining is completed, the workpiece 2 is dropped into the chute 58 and released into the chute 58 while the rotary table 16 is in the machining position. The workpiece is fed into two positions.

Therefore, in the rotary table method, the feeding operation of the feeding device 5 and the rotating operation of the rotary table 16 are performed separately, so they do not interfere with each other, and the workpiece 2 is easily inserted into the processing position. There is no danger.

On the other hand, as in the conventional example shown in FIG. 9, the machining heads are arranged in series for the number of machining operations, the position of the machining heads does not change, and the workpiece is placed on a reciprocating table.
In the case of the serial feed method, in which the workpiece is placed on the table after one machining cycle and is sent to just below the next machining head, it is necessary to move the table back to the pre-machining position after all machining is completed, and this table return is necessary. This requires extra time in addition to the machining time, and the entire machining time is longer. In addition, as many workpieces as the number of processing heads are placed on the table, and the table is moved each time processing is performed, there is a risk of interference between the processing operations of the processing heads and the movement of the table. It takes a long time to place the paper on the paper, and the workability as a whole is poor.

With regard to mold exchange, the processing machine of the present invention allows molds that are not in the processing position to be replaced one by one on the rotary table in a few seconds during the processing operation, and an automatic exchange method is also possible. With conventional serial feed type processing machines, it is necessary to change all the dies for each machining head at once, which requires extra time to change dies. If it is necessary to process a different type of workpiece that requires Including, the required floor area of 5Tr1 or less is sufficient, but the conventional serial feed type processing machine requires a floor area of about 9 inches, and the processing machine of the present invention has a floor area of about 1/1 compared to the conventional processing machine. 2 spaces is sufficient.

The present invention has the structure described in the claims, in which as many dies as required for processing the workpiece are arranged around the periphery of a rotary table, and the workpiece sent to the center of the press is placed at its processing position. The mold on the rotary table is held until the end of the machining process, and the mold on the rotary table is moved back and forth to the machining position in the order of the machining process.The entire machine is driven by a machine, so the time required for one machining is extremely short, and the power source required is a small motor. Two machines are enough, it is energy-saving, requires small floor space, has a simple operating circuit, and is easy to maintain.The price and maintenance costs for a metal cutting machine are low, and it has good workability and is easy to work with. This is an excellent invention that can provide a shape material end processing machine that is suitable for high-variety, low-volume production without the danger of mold exchange, and without requiring a particularly long time for mold exchange.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the embodiment including the 1-1 bending line cross section in Fig. 2, Fig. 2 is a front view showing the vertical section taken along the - line in Fig. 1, and Fig. 3 is a - bending line in Fig. 2. FIG. 4 is a cam perspective view, FIG. 5 is a partial sectional view of the -V bent line in FIG. 2, FIG. 6 is a partial sectional view of the -V bend line in FIG. FIG. 8 is a diagram showing the operational relationship of each machining process with respect to one revolution of the main shaft, FIG. 8 is a developed diagram of the same, and FIG. 9 is a schematic side view of the conventional example. 1: Main body, 2: Workpiece, 3: Rail, 7, 7a: Mold, 1
2: Press, 13: Upper jaw, 16: Rotary table, 19:
Main shaft, 21: clutch, 23, 24: bevel gear, 25: Geneva gear mechanism, 26: disk, 27: pin, 28: Geneva gear, 30: pawl locking groove, 31: mold feeding pawl body, 32:
Locking claw, 35: Link, 36: Support shaft, 37: Leno\3
8: Upper arm, 39: Lower arm, 40: Lever clutch, 42: Outer cam, 46: Press middle hole \ 47: Lifting guide groove, 4
8: Guide body, 49: Conrod, 50: Crank, 5
2: Motor, 55: Clutch, 72: Machine frame.

Claims (1)

[Claims] 1. Two main bodies are installed on the same rail symmetrically so that they can advance and retreat simultaneously in the direction of the rail, and each main body is driven by a motor mounted on the machine frame via a clutch. A main shaft is arranged horizontally parallel to the rail, and on the main shaft, a press lifting mechanism for lifting and lowering the mold by pressing the mold at the press center position, and a plurality of molds for machining the ends of the mold material are attached radially, and the vertical shaft a rotation mechanism that sequentially rotates a rotary table rotatable around the rotary table to a processing position where the mold faces the press center position; and a rotation mechanism that moves the mold in the processing position back and forth in the radial direction of the rotary table to the press center position. Each drive device of the mold feeding mechanism is engaged,
The elevating mechanism of the press consists of a crank connected to the main shaft, a connecting rod connecting the crank and the press, and an elevating guide device on the machine frame side that guides the press in the vertical direction, and the press is C-shaped. The rotary table is arranged at right angles to the main axis, has an upper jaw extending to the center position of the press, and is capable of raising and lowering the die, advancing and retracting, and mounting and discharging workpieces parallel to the main axis under the upper jaw. The rotating mechanism consists of a disk of a Geneva gear mechanism that is rotated around a vertical axis by a drive bevel gear that can be engaged and disengaged via a main shaft and a clutch, a pin embedded in the disk, and a pin that meshes with the pin. The rotary table is made of a Geneva gear coaxially connected to the rotary table, and the rotary table can be rotated intermittently by the rotation mechanism of the rotary table. A plurality of required molds are removably mounted in the order of press working so as to be able to move forward and backward in the direction, and the mold feeding mechanism includes an outer peripheral cam provided on the main shaft, and a horizontal movement that is engaged with the outer peripheral cam so as to be able to swing. The lower arm of the lever is loosely fitted to the support shaft, the support shaft is removable from the lower arm via a lever clutch, the upper arm of the lever is swingable and fixed to the support shaft, the upper arm and a die-feeding claw body attached to the rotary table so as to be movable in the radial direction of the rotating table. An arc-shaped locking pawl that is locked in a pawl locking groove recessed in the circumferential direction is provided on the lower surface of the mold on the rotary table that is rotated to the processing position, and the mold feed By moving the claws back and forth in the radial direction, the mold at the processing position can move back and forth in the radial direction of the rotary table between the mounting position on the rotary table and the press center position, and the intermittent rotation of the rotary table and the movement of the mold. A series of steps of advancing, pressing, and mold return are performed during one rotation of the main shaft, and the rotation mechanism and mold feeding mechanism of the rotary table can each be stopped even when the main shaft rotates, and the mold material is A shape material end processing machine characterized in that both ends can be press-processed at the same time.