RU2317172C2 - Die set for perforating operations at synchronization of perforation pitch - Google Patents

Abstract

FIELD: plastic working of metals, namely by means of perforating apparatuses.

SUBSTANCE: die set includes upper and lower stationary plates; punch holder with punch; die secured to die holder; pneumatic cylinder; guiding device mounted on end of lower stationary plate; mobile carriage arranged symmetrically relative to lengthwise axis of die set; electronic device for synchronous motion of belt blank and mobile carriage with die; device for synchronizing perforation pitch including housing, movable carriage, member for joining with die set body, guiding unit. Said device for synchronizing perforation pitch is used for basing perforated holes in order to improve accuracy of perforations.

EFFECT: improved accuracy of separating perforations.

8 dwg

Description

The invention relates to the processing of metal by pressure, in particular to dies for separating operations as part of a line for profiling a metal strip from flat billets, and performs technological operations: cutting-punching, cutting, perforation with a certain step without stopping the line of profiling. The synchronizer is designed to work in conjunction with a stamp for separation operations as part of the production line of a small-grade bent profile, to ensure the accuracy of the longitudinal dimensions when punching holes. The synchronizer should be operated in the conditions of the machine shop of an engineering plant in the absence of dust and thermal radiation sources near. The environment should not be explosive and not containing aggressive gases and vapors in concentrations that destroy metals and other materials.

From analogues of the prior art, the invention is known - a sequential-action stamp containing an upper plate, a lower fixed plate, a punch, a matrix mounted on a matrix holder, and a pneumatic cylinder (SU 1532137, B21D 28/14 according to the application for invention No. 4407365 / 27-27 of 11.04. 1988, authors E.N. Khludenev and V.I. Chernev, applicant Magnitogorsk Iron and Steel Works named after V.I. Lenin, published in bulletin No. 48 dated 12.30.89).

A disadvantage of the known invention is the impossibility of separation operations as part of a line for profiling a metal strip from flat billets and the stamp performs technological operations: cutting-punching, cutting, perforation with a certain step without stopping the line of profiling.

The closest in number of essential features to the prototype can be adopted the utility model "Stamp for separation operations", containing the upper plate, the lower fixed plate, the punch, the matrix mounted on the matrix holder, and a pneumatic cylinder, a guiding device mounted to the end of the lower fixed plate, and a mobile a carriage containing upper and lower movable plates, interconnected by columns symmetrically located relative to the longitudinal axis of the stamp, and having wheels mounted in the direction rails mounted on the lower surface of said upper die plate made stationary and on the upper surface of said lower fixed die plate, wherein a punch holder is mounted on the upper movable plate of the movable carriage to which said punch is fixed, and on the lower movable plate of the movable carriage are fixed said matrix holder with a matrix, wherein the movable carriage is capable of horizontal movement along said guide rails in a technological the process of separation operations, mainly of the tape billet, and with the possibility of returning to the initial position by means of the aforementioned pneumatic cylinder, the stamp is equipped with an electronic device configured to synchronously move the tape billet and the matrix moving with the movable carriage with the time of cutting the billet with the punch and returning it to its original position and end a switch mounted on the lower fixed plate of the stamp and on the lower movable plate of the movable carriage and made with the possibility of its actuation and emergency stop of the profiling line in the case of continued movement of the movable carriage after the signal from the pneumatic cylinder, the aforementioned guide device is equipped with adjustable base elements made in the form of longitudinal, parallel to the table guide rails fixed by screws mounted on the lower base plate with the possibility of changing their width (RU 44553 IPC V21D 22/02, issued by application No. 2004125414/22 of 08.23.2004, Authors: Litvinov V.A., Zarubin P.I., Zarubin D.P., Filimonov S.V., Lapshin V.I., the applicant and patent holder of which is Special Technology Limited Liability Company, published on March 27, 2005 in Bulletin No. 9).

A disadvantage of the known utility model is the low accuracy of the punching step, since it is not technically ensured due to the increased actuation time of the actuators and the lack of basing of punched holes.

The technical result of the claimed invention is the elimination of these disadvantages.

The technical result of the claimed invention, ensuring high accuracy of the punching step when punching holes, is achieved by the fact that, compared with the utility model adopted for the prototype, a stamp for separation operations containing the upper plate, lower fixed plate, punch, matrix mounted on a matrix holder, and a pneumatic cylinder, a guide device mounted to the end of the lower fixed plate, and a movable carriage formed by the upper and lower movable plates connected by columns, symmetrically located relative to the longitudinal axis of the die and having wheels mounted in guide rails mounted on the lower surface of the said upper plate of the die made stationary and on the upper surface of the said lower fixed plate of the die, the punch holder is mounted on the upper movable plate of the movable carriage on which said punch is fixed, and said matrix holder with a matrix is fixed on the lower movable plate of the mobile carriage, the mobile carriage being made the possibility of horizontal movement along the said guide rails in the technological process of separation operations, mainly of the tape billet, and with the possibility of returning to the starting position by the said pneumatic cylinder, the stamp is equipped with an electronic device configured to synchronously move the tape billet and the matrix moving with the movable carriage with the time of cutting the billet punch and return it to its original position and the limit switch mounted on move the stamp still on the lower movable plate of the mobile carriage and made with the possibility of its triggering and emergency stop of the profiling line in the case of continued movement of the mobile carriage after the signal from the pneumatic cylinder, the said guide device is equipped with adjustable basic elements made in the form of longitudinal, parallel arranged on the table of guide rails fixed by screws mounted on the lower base plate with the possibility of changing their width, in the invention, the stamp for separation operations is equipped with a synchronizer containing a bed, a movable carriage, a connecting device and a guiding device, while the bed is made of lower support and upper sections, and said movable carriage is mounted on the upper section of the bed, contains a base made in a U-shape , in the openings of the lower part of which the bearings are mounted on the axles, installed in the guide rails located in the upper part of the upper section, made with the possibility of the movement along them and contains a guide plate fixed to the upper surface of the base by means of bolts, while the movable carriage is equipped with a bracket fixed to the lower surface of the base of the movable carriage, with a pneumatic cylinder mounted on it and provided with a latch mounted in the hole made in the Central part of the base a movable carriage, the aforementioned connecting device connecting the die body with the synchronizer of the perforation step, comprises a bracket rigidly fixed to the rear the wall of the lower stationary plate of the stamp for separating operations, having a bar in which a manual lock is installed, and also contains a rod fixed to the bracket, and a rod fixed to the said movable carriage of the synchronizer, as well as a shrink disk connecting the rod fixed to the bracket, with the rod mounted on the movable carriage of the synchronizer, while the shrink sleeve is made with the possibility of adjusting the punching step by pulling the rod coupling, mounted on the bracket, with the rod closed insulated on a movable carriage, and said synchronizer guide device is mounted on the upper section and provided with support rollers.

The invention is illustrated by drawings.

Figure 1 - General view of the stamp for separating operations with the synchronizer pitch perforation mounted in a crank press.

Figure 2 - stamp for separating operations with the synchronizer pitch perforation (section aa of figure 1, top view).

Figure 3 - stamp for separation operations, front view.

Figure 4 is a stamp for separation operations, side view.

5 is a General view of the synchronizer pitch perforation, front view.

6 - synchronizer pitch perforation, top view.

7 is a movable carriage synchronizer pitch perforation.

Fig - connecting device synchronization pitch perforation.

The stamp for separating operations with the synchronizer of the punching step comprises an upper fixed plate 1 (Figs. 1, 3, 4) fixed to the slider 2 (Figs. 1, 3, 4) of the crank press (Fig. 1), and a lower fixed plate 3 ( figures 1-4). The stamp for separating operations with the synchronizer of the punching step is equipped with a guide device 4 (Fig. 2, 3) mounted to the end face of the lower fixed plate 3 (Figs. 1-4), and a pneumatic cylinder 5 (Figs. 1, 3). Guide rails 6 are mounted on the lower surface of the upper fixed plate 1 (Figs. 1, 3-4) and on the upper surface of the lower fixed plate 3 (Figs. 1–4). The stamp contains an upper movable plate 7 (Figs. 1, 3, 4) and a lower movable plate 8 (Figs. 1-4), interconnected by columns 9 (Figs. 1-4) and forming a movable carriage 10 (Figs. 1- 4), symmetrically located relative to the longitudinal axis of the stamp for separation operations and having wheels 11 (Fig.1, 3, 4) installed in the guide rails 6 (Fig.4). On the upper movable plate 7 (Figs. 1, 3, 4) of the movable carriage 10 (Figs. 1-4), a punch holder 12 (Figs. 1, 4) is mounted on which the punch 13 (Figs. 1, 4) is fixed, and the lower movable plate 8 (Figs. 1-4) of the movable carriage 10 (Figs. 1-4) are mounted matrix holder 14 (Figs. 2, 4) with the matrix 15 (Figs. 2, 4). The movable carriage 10 (Fig.1-4) is made with the possibility of horizontal movement along the guide rails 6 (Fig.4) in the technological process of separation operations, mainly of the tape blank and with the possibility of returning to its original position by means of a pneumatic cylinder 5 (Fig.1, 3) The stamp for separating operations is equipped with an electronic device (Fig. 1, 3), configured to synchronously move the tape billet and moving with the movable carriage 10 (Figs. 1-4) of the matrix 15 (Fig. 4) with the time of cutting the blank Onom 13 (figure 4) and return it to its original position. To enable emergency stop line profiling in the case of continued movement of the movable carriage 10 (Fig.1-4) after a signal from the pneumatic cylinder 5 (Fig.1, 3), the stamp for separation operations is equipped with an end switch 17 (Fig.1, 3), mounted on the lower movable plate 3 (Figs. 1-4) of the stamp and mounted on the lower movable plate 8 (Figs. 1-4) of the movable carriage 10 (Figs. 1-4) of the stamp. The limit switch 17 (Fig.1-4) is made with the possibility of its operation and emergency stop line profiling in case of continued movement of the carriage 10 (Fig.1-4) after a signal from the pneumatic cylinder 5 (Fig.1, 3). The guiding device 4 (FIGS. 2, 3) of the die is used to center blanks, including a metal strip (not shown in the drawing), and is equipped with adjustable basic elements made in the form of longitudinal guide bars 18 parallel to the table (FIG. 2) fixed by screws 19 (figure 3) mounted on the lower fixed plate 3 (figure 3) with the possibility of changing their width. The stamp is equipped with a synchronizer 20 (Figs. 1, 5, 6) of the perforation step containing a frame 21 (Figs. 1, 5, 6), a movable carriage 22 (Figs. 1, 5-7), a connecting device 23 (Fig. 1, 5, 6, 8), kinematically rigidly connecting the movable carriage 22 (Figs. 1, 5-7) of the synchronizer 20 (Figs. 1, 5, 6) of the punching step with a stamp for dividing operations. The bed 21 (Fig. 1, 5, 6) of the synchronizer 20 (Fig. 1, 5, 6) of the perforation step is made of 2 sections welded from a channel and a corner. The frame 21 (Fig. 1, 5, 6) is made of the lower support section 24 (Fig. 1, 5) and the upper section 25 (Fig. 3, 5, 6). On the upper section 25 (Figs. 1, 5, 6), all nodes and devices of the synchronizer 20 (Figs. 1, 5, 6) are installed. The upper section 25 (Fig. 1, 5, 6) is configured to adjust the synchronizer 20 (Fig. 1, 5, 6) of the perforation pitch in height by raising or lowering the upper section 25 (Fig. 1, 5, 6) by a predetermined size . The movable carriage 22 (Fig. 1, 5-7) is installed on the upper section 25 (Fig. 1, 5, 6) of the frame 21 (Fig. 1, 5, 6), contains a base 26 (Fig. 7), made P- shaped, in the holes of the lower part of which on the axes 27 (Fig.7) are fixed rolling bearings 28 (Fig.7) installed in the guide rails 29 (Fig.7), made in the upper part of the upper section 25 (Fig.1, 5 , 6) with the ability to move on them. The movable carriage 22 (FIGS. 1, 5-7) comprises a guide plate 30 (FIG. 7) fixed to the upper surface of the base 26 (FIG. 7) by means of bolts 31 (FIG. 7). The movable carriage 22 of FIG. 7) is equipped with a bracket 32 (FIG. 7) fixed to the lower surface of the base 26 (FIG. 7) of the movable carriage 22 (FIGS. 1, 5-7) with the pneumatic cylinder 33 mounted on it (FIG. 7) and provided with a latch 34 (Fig. 7) mounted in a hole made in the central part of the base 26 (Fig. 7) of the movable carriage 22 (Figs. 1, 5-7). The connecting device 23 (Figs. 1, 5, 6, 8), connecting the die body with the synchronizer 20 (Figs. 1, 5, 6) of the perforation step, comprises a bracket 35 (Fig. 8), rigidly fixed to the rear wall of the lower fixed plate 3 (Figs. 1, 3, 4) of a stamp for separating operations, having a bar 36 (Fig. 8), in which a manual lock 37 (Fig. 8) is installed. The connecting device 23 (Fig. 8) contains a rod 38 (Fig. 8), mounted on an arm 35 (Fig. 8), and contains a rod 39 (Fig. 8), mounted on a movable carriage 22 (Figs. 1, 5-7 ) synchronizer 20 (Figs. 1, 5, 6) of the perforation step, and also includes a shrink disk 40 (Figs. 1, 8) connecting the rod 38 (Fig. 8), mounted on the bracket 35 (Fig. 8), with a bar 39 (Fig.1, 8), mounted on a movable carriage 22 (Fig.1, 5-7). The shrink disk 40 (FIGS. 1, 8) is configured to adjust the punching step by tightening the sleeve 38 (FIGS. 1, 8) of the rod 38 (FIGS. 1, 8), mounted on the bracket 35 (FIG. 8), with the rod 39 (figure 1, 8), mounted on a movable carriage 22 (figure 1, 5-7). The synchronizer 20 (Fig. 1, 5, 6) of the perforation step comprises a guide device 41 (Fig. 1, 5) mounted on the upper section 25 (Fig. 1, 5) of the frame 21 (Fig. 1, 5), which is equipped with supporting rollers 42 (figure 1, 5) and contains a limit switch 43 (figure 1, 5) mounted in the upper part of the upper section 25 (figure 1, 5) on the frame 21 (figure 1, 5). The synchronizer 20 (Figs. 1, 5, 6) of the perforation step is designed to work in conjunction with a stamp for separation operations as part of the production line of a small-grade bent profile (not shown in the drawing). The synchronizer 20 (Figs. 1, 5, 6) of the perforation step should be operated in the conditions of the machine shop of a machine-building plant in the absence of dust and thermal radiation sources near. The environment should not be explosive, not containing aggressive gases and vapors in concentrations that destroy metals and other materials. The synchronizer 20 (Fig. 1, 5-6) of the perforation step is installed in a line and attached to the belt of the production room strictly in size on the wiring diagram. The synchronizer 20 (Figs. 1, 5, 6) of the perforation step is installed behind the stamp for separation operations and is connected to its lower plate 3 (Figs. 1-4).

The work of the stamp for separating operations with the synchronizer pitch perforation is as follows.

The workpiece (not shown in the drawing), including sheet metal tape, is centered on the guiding device 4. The centered workpiece from the guiding device 4 enters the working area of the stamp for punching holes in the movable carriage 10. When the signal from the electronic control unit 16 is on the crank press (figure 1) the lowering of the slider 2 of the press and the separation operation is performed. In this case, the punch 13 is located in the matrix 15 of the movable carriage 10 and moves together with the tape / profile due to the drive of the roll forming mill (not shown in the drawing). The forward movement of the mobile carriage 10, followed by the opening of the punch 53 and the die matrix 15. After raising the press slider 2, the pneumatic cylinder 5 of the stamp for separation operations returns the movable carriage 10 all the way to its original position. The limit switch 17 controls the extremely permissible position of the mobile carriage 10. In the event that, upon receipt of a signal, the mobile carriage 10 has not stopped and continues to move forward, the limit switch 17 is activated and the entire profiling line is stopped. When feeding the perforated tape (not shown in the drawing) from the stamp, it is necessary to fix it with a manual lock 37 located in the bracket 35 of the connecting device 23 located in the movable carriage 22. Fine adjustment of the size of the punching step is made by the shrink sleeve 40. The tape is based (not shown in the drawing ) in the synchronizer of the perforation step is carried out by the support rollers 42 of the guide device 41. The stamp for separating operations is designed to work as part of a line for profiling a metal tape from a flat cooking in a predetermined sectional shape. The stamp refers to technological equipment for separating operations (cutting / punching / cutting / perforation) of sheet metal with a certain step without stopping the profiling line.

The principle of operation of the synchronizer is as follows: a steel tape with punched holes from the stamp for separating operations enters the table of the carriage 22 of the synchronizer 20 of the perforation step on the support rollers 42. At the signal from the electronic control unit 16, the pneumatic cylinder 33 of the synchronizer of the 20 perforation step is turned on. The lock 34 of the synchronizer 20 of the perforation step rises and engages in the nearest punched holes. A moving belt (not shown) begins to move the carriage 22 of the synchronizer 20 of the perforation step, which, in turn, by means of a connecting device 23, attached to the bottom plate 8 of the movable die carriage for separation operations, synchronously moves the movable die carriage 10. When moving, the movable carriage 22 of the synchronizer 20 of the perforation step presses the rod of the limit switch 43 mounted on the frame of the synchronizer 20 of the perforation step, which includes the press. With further movement of the movable carriage 22 of the synchronizer 20 of the perforation step, the signal from the electronic control unit 16 of the cavity of the pneumatic cylinder 33 switches, while the latch 34 falls and disengages from the perforated tape. The pneumatic cylinder 5 of the movable die returns to the initial position the movable carriage 10 of the movable die and the movable carriage 22 of the synchronizer 20 of the perforation step.

The technical result of the claimed invention is the provision of high accuracy of the perforation step within + 3T1412. ± 1T1412.

In known designs, high accuracy of the punching step is not technically ensured due to the increased response time of the actuators and the lack of basing of punched holes.

Claims (1)

Stamp for separating operations with a punch pitch synchronizer, comprising a top plate, a bottom fixed plate, a punch holder with a punch, a die mounted on a die holder, a pneumatic cylinder, a guide device mounted on the end face of the bottom fixed plate, symmetrically located relative to the longitudinal axis of the die, a movable carriage formed by the upper and lower movable plates, interconnected by columns, having wheels mounted in guide rails mounted on the lower top the spine of said upper die plate made stationary and on the upper surface of said lower stationary die plate, a punch holder with a punch is mounted on the upper movable plate of the movable carriage, and a matrix holder with a matrix is mounted on its lower movable plate, the movable carriage is arranged to horizontally move along the aforementioned guide rails in the technological process of separation operations, mainly tape billet, and with the possibility of returning to the original position e by means of the said pneumatic cylinder, an electronic device capable of synchronously moving the tape billet and moving the matrix with the movable carriage with the time of cutting the billet with the punch and returning it to its original position and an end switch mounted on the lower fixed plate of the die and on the lower movable plate of the mobile carriage and made with the possibility of its operation and emergency stop profiling line in the case of continued movement of the mobile carriage after signal compression from the pneumatic cylinder, the said guide device has adjustable basic elements made in the form of longitudinal, parallel to the table guide rails fixed by screws mounted on the lower fixed plate with the possibility of changing their width, characterized in that the synchronizer contains a frame, a movable carriage, the connecting device and the guiding device, the bed is made of the lower support and upper sections, the movable carriage is installed on the upper section of the bed and soda there is a U-shaped base, in the openings of the lower part of which axial bearings are mounted, mounted in guide rails located in the upper part of the upper section, made with the possibility of movement along them, a guide plate fixed to the upper surface of the base by means of bolts, an arm mounted on the lower surface of the base of the movable carriage with a pneumatic cylinder mounted on it, a latch mounted in an opening made movably in the central part of the base the first carriage, the synchronizer connecting device is configured to be connected to the die body and comprises a bracket rigidly fixed to the rear wall of the lower fixed plate, a manual clip and a bar for its installation, a rod fixed to the bracket, and a rod fixed to the movable carriage, a shrink sleeve for connecting the rod mounted on the bracket to a bar mounted on the movable carriage, the shrink sleeve being configured to adjust the punching step by tightening the sleeve a rod mounted on the bracket, with a rod mounted on a movable carriage, and the guide device is mounted on the upper section of the frame and has support rollers.

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