JPH04104229U - Mold rotation device in turret punch press machine - Google Patents

Abstract

(57) [Summary] [Purpose] By providing an air nozzle that blows air toward the engaging end of the clutch, and by using the jetted air to prevent machining debris from adhering to the clutch engaging end prior to clutch engagement, Achieves good clutch connection and enables good drilling work. [Structure] The present invention proposes to provide a turret punch press machine with an air nozzle that blows air toward the engagement end of the clutch.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention relates to a mold rotation device in a turret punch press machine.

0002

[Conventional technology]

In a turret punch press machine, the punches, dies, etc. on the turret are rotated. For example, the device disclosed in Japanese Unexamined Patent Publication No. 58-53333 is known as a device for this purpose. However, in these devices, the rotating metal on the moving turret is connected from the fixed frame side. A dog clutch is provided to transmit drive to the mold.

0003

[Problem that the idea aims to solve]

Therefore, it is important that the dog clutch is engaged completely and satisfactorily. This is an essential condition for synchronizing the rotational phase of the punch tool and die tool. However, a lot of processing debris is generated around the turret where the clutch is installed, and Due to the influence of punch vibration, the machining debris is not placed in areas where it may interfere with the above-mentioned engagement. There is a risk that the metal may enter the groove and cause poor engagement.

0004

[Means to solve the problem]

Therefore, this idea eliminates the above-mentioned problems and always achieves good clutch engagement. In order to achieve good drilling work, the turret punch press machine like the one above has It is proposed to install an air nozzle that blows air toward the engaged end of the clutch. It is something.

[0005]

【Example】

Examples will be described below based on the drawings. In Figure 1, (1) and (2) are the upper and lower frames of the main body, respectively, and the upper frame (1) The upper turret (3) is rotatably supported on the lower frame (2), and the lower turret (3) is rotatably supported on the A turret (4) is also rotatably supported. This turret (3)(4) They are rotated synchronously by a known drive mechanism (not shown), and the The part turret (3) has a punch tool (5), and the lower turret (4) has a die tool. The tool (6) is supported via tool holders (7) and (8), which will be explained in detail later, respectively. .

[0006] (9) is a ram installed through the upper frame (1) so that it can move up and down, and (11) is A pitman connected to the ram (9), and a crank connected to the upper part of the pitman (11). When the rank shaft (12) is rotationally driven, the ram (9) is driven up and down, and the lower part of the ram (9) The knob-like flange on the upper part of the punch tool (5) is inserted into the C-shaped engagement groove (18) formed in the part. When the part (5a) is inserted, the punch tool (5) moves up and down to perform the punching process. It is about to be done.

[0007] The engagement groove (13) at the bottom of the ram (9) is formed in the circumferential direction of the turret (3) ( The ram (9) is stationary and the turret (3) is rotating. When doing so, the flange portion (5a) of the punch tool (5) freely moves the engagement groove (13). However, when the turret (3) is stationary and the ram (9) moves up and down, the pan The flange part (5a) of the tool (5) engages with the inward claw part of the engagement groove (13), and the The punch tool (5) moves up and down together with the punch tool (9).

[0008] The tool holders (7) and (8) of the above tools are respectively attached to the turrets (3) and (4). In this embodiment, the vertical movement axis (punch pin) of the ram (9) is It is rotatable around the processing axis (P) and is installed on the upper and lower frames (1) and (2). The clutch is directly connected to the first and second rotating members (14) and (15) detailed below. Therefore, it is rotationally driven.

[0009] The drive input to the rotating members (14) and (15) on the upper and lower frames (1) and (2) is as shown in the figure. As shown in 1, it meshes with the gear parts (14a) (15a) formed on the outer periphery of each rotating member (14) (15). The worm gears (16)(17) and the toothed pulleys (21) are attached to the worm gear shafts (18)(19). )(22) and the upper and lower transmission shafts (24)(25) connected via the toothed belt (23). Servo motor via toothed pulleys (26)(27) and toothed belt (28) (29) is used to input the drive, and in this example, the transmission Connect the shafts (24)(25) to each other via toothed pulleys (31)(32) and toothed belt (33). By connecting, the servo motor (29) can be installed only on one transmission shaft (25) side. Moreover, it is necessary to match the rotational speed of the upper and lower transmission shafts (24) and (25). However, servo motors are connected to the upper and lower transmission shafts (24) and (25) individually. It's okay.

0010 In addition, the servo motor (29) of this example has its rotational speed origin set at the punch tool (29). 5) The dog (not shown) provided on the tool holder (7) is shown on the upper frame (1). It is set when detected by a proximity switch not shown. You can use the tool holder (8) on the die side as a reference, or separate the upper and lower parts as shown above. When installing a servo motor, use the tool holders (7) and (8) of each tool as a reference. You can also set the origin as (34) is a coupling, and (35) is a bearing bracket.

[0011] Below, the upper and lower tool holders (7) (8) and the first and second rotating members (14) (15) will be explained in order. That is, first, the tool holder (7) of the punch tool and the holder (7) are To explain the first rotating member (14) that fits together, as shown in Figures 2 and 3, this The tool holder (7) of the embodiment has a support tube ( 36) It is a cylindrical body with an upper flange (7a) that is rotatably loaded inside the pan. A vertical key (not shown) prevents rotation between the tool (5) and the tool (5). , the punch tool (5) is always attached downward by the spring (37) installed on the side of itself. The engaged member (38) that is being pushed through the vertical slit formed on the inner surface of the tool holder (7) It is prevented from falling by engaging with the cut (39).

0012 Therefore, relative rotation between the punch tool (5) and tool holder (7) is always impossible. and is vertically movable, but the tool holder (7) and the support cylinder (36) are between the upper turret (3) and the upper turret (3). A cam lever (41) such as are now being taken selectively.

[0013] In other words, the upper flange part (7a) has a roughly G-shape that rotates around the support shaft (42). a shaped cam lever (41), and a spring (43) that presses against one end of the cam lever (41). A biased working pin (44) is provided, and the cam lever (41) is normally at the working pin. The back part (41a) of the cam lever itself is pushed by the button (44) and forms into the support cylinder (36). The rotating member (14) is fitted into the formed groove (45) to prevent rotation (Fig. 2). The head of the cam lever (41) is pushed downward by an engaging pin (46), which will be described later, extending from When the cam lever (41) rotates and the back part of itself comes out of the groove (45), The tool holder (7) is placed against the bearing tube (36), i.e. against the upper turret (3). In contrast, it is designed to be able to rotate freely (Fig. 3). In addition, the above cam lever - (41) are provided at two opposing locations on the tool holder (7), and the above-mentioned engagement pins ( The flange part (7a) into which the 46) enters should match the shape of the tip of the engagement pin (46). It is formed in a rectangular groove (47).

[0014] Next, the first rotating member (14) is moved to the upper frame (1) as shown in Figure 2. It is rotatably mounted around the sleeve part (1a) that supports the arm (9) in a vertically movable manner. As mentioned above, the gear part (14a) is formed on the outer periphery of the cylindrical body. , is driven to rotate at any angle by the rotation of the meshed worm gear (16), but the internal The following fluid cylinders (48) are installed, and two cylinders are installed downward from the rotating member (14). The engaging pin (46) is designed to be able to protrude freely.

[0015] That is, the pistons (49) are located at two locations facing each other in the first rotating member (14). ) forms a fluid chamber (51) that can freely move up and down. The ports (52) and (53) are formed in an annular groove along the entire inner circumference of the rotating member (14). , the piston (49) can be moved up and down freely by external fluid control. However, the engagement pin (46) is integrally fixed to the lower surface of the piston (49). It is.

[0016] In addition, another pin (54) is integrally fixed on the top surface of the piston (49). If the piston (49) moves up and down at the rotational position of the rotating member (14) in Figure 2, this The upper end of the pin (54) hangs downward through the hole (1b) drilled in the upper frame (1). Raise and lower the sensor rod (55) that has been installed, and then lift the upper end of the sensor rod (55). The engagement pin (46) appears and disappears by detecting it with two proximity sensors (56) and (57). The state can be detected.

[0017] (58) is the guide frame of the sensor rod (55), (55a) is the middle of the sensor rod (55) The flange portion (59) formed between the two is interposed on the rod on the flange portion (55a). This is a spring that constantly biases the sensor rod (55) downward.

[0018] The length of the pin (54) above is the length of the pin (54) when the piston (49) is at its lowest position. The upper end is long enough to fit into the first rotating member (14) and the sensor rod (55). The length is such that when the flange part (55a) is in the lowest position, the lower end of the rod (55) is connected to the rotating member (14). ) is set to a length that does not go inside.

[0019] As described above, the engagement pin (46) protrudes retractably from the first rotating member (14). and the wedge-shaped groove (47) formed in the flange of the tool holder (7). configure the switch.

[0020] Next, a tool holder (8) of the die tool and a second To explain the rotating member (15) of this embodiment, as shown in Figs. The tool holder (8) is housed in a support tube (61) that is integrally fixed to the lower turret (4). It is a rotatably loaded cylindrical body with an upper flange, and the upper part is mounted by known means. The die tool (6) is fastened to the support cylinder (61) and the tool holder (8). The cam lever (62) shown below is installed at the bottom of the tool holder (8). Either a rotatable state or a non-rotatable state can be selected. .

[0021] In other words, as shown in Figure 5, the lower part of the tool holder (8) rotates around the support shaft (63). A roughly L-shaped cam lever (62) that presses against the cam surface of the head of the cam lever (62). A working spring (64) and a biased working pin (65) are provided, and the camshaft is normally The bar (62) is pushed by the action pin (65) and the tip (62a) of the cam lever itself is fitted into the groove (66) formed in the support tube (61) and is prevented from rotating (Fig. 5). (on the left side), the cam lever is connected by an engaging pin (67), which will be described later, extending from the second rotating member (15). - (62) is pushed upward and the cam lever (62) resists the action pin (65). When the tip (62a) of the tool holder comes off the groove (66), the tool holder is removed. - (8) rotates freely with respect to the support cylinder (61), that is, with respect to the lower turret (4). (right side of Figure 5). In addition, the above cam lever (62) are provided at two opposing locations on the tool holder (8), and the engagement pin (67) is advanced. The lower part of the tool holder (8) is wedge-shaped to match the shape of the tip of the engagement pin (67). It is formed in the groove (68). In Figure 5, the engagement pin (67) is in different states on the left and right sides. However, it is shown for convenience of explanation, and there are actually two engaging pins ( 67) is simultaneously prominent and immersive.

[0022] Next, the second rotating member (15) is rotated on the lower frame (2) as shown in Figure 4. Rotatably loaded into the support housing (69) provided at the punching position (P). It is a cylindrical body with a gear part (15a) formed on its outer periphery as described above. The worm gear (17) rotates at any angle, but there is no internal A fluid cylinder (71) as shown below is provided to extend upwardly from the second rotating member (15). The book engagement pin (67) is designed to be able to protrude and retract freely.

[0023] That is, the pistons (72 ) forms a fluid chamber (73) that can freely move up and down. The ports (74) and (75) are formed in annular grooves along the entire outer circumference of the rotating member (15). , the piston (72) can be moved up and down freely by external fluid control. However, the engagement pin (67) is integrally fixed to the top surface of the piston (72). It is.

[0024] In addition, another pin (76) is integrally fixed to the bottom surface of the piston (72). If the piston (72) moves up and down at the rotational position of the rotating member (15) in FIG. The lower end of the pin (76) is a seesaw-shaped lever (77) installed on the lower frame (2). The sensor rod (78), which is movable up and down on the side, is moved up and down through the Two proximity sensors (81) (82) are placed at the position of the dog (79) protruding from the rod (78). By detecting this, it is possible to detect whether the engagement pin (67) is protruding or retracting. Ru. ( 83) is the support shaft of the seesaw-like lever (77), (84) is the guide frame of the sensor rod (78) , (85) is a spring that constantly biases the sensor rod (78) downward.

[0025] As described above, the engagement pin (67) protrudes retractably from the second rotating member (15). The clutch is constructed with a wedge-shaped groove (68) formed at the bottom of the tool holder (8). to be accomplished.

[0026] In this embodiment, the second rotating member (15) is provided with the recess shown on the left side of FIG. The engagement pin (67) in the engaged state passes through the nozzle hole (101) that communicates the upper end with the outer periphery. Furthermore, an air guide hole (102) communicating with the nozzle hole (101) is connected to the support housing (69). ) is formed on the top of the valve (10 3) By switching, the engagement pin (67) can be spouted at the upper end as appropriate. There is.

[0027] In addition, in the above example, air is ejected to the upper end of the engagement pin (67) that constitutes the lower clutch. Although only the nozzle hole (101) was provided, the wedge-shaped groove (101) constituting the upper clutch was provided. 47) A nozzle hole (104) (dashed line in Figure 2) may be provided to eject air toward the top surface. Of course.

[0028] In addition, the fluid cylinders (48) (71) for vertically moving each engagement pin (46) (67) are An electric drive source such as a lenoid may also be used.

[0029] Next, to explain the operation of the above embodiment, the device of the above embodiment is as follows. Since the structure is as explained in , the turrets (3) and (4) rotate to deliver the desired punch. The tool (5) and die tool (6) are at the ram (9) position, that is, the punching position (P ), the fluid cylinders (48) (71) in each rotating member (14) (15) are activated. When the engaging pins (46) and (67) are pushed out respectively, the tips of the engaging pins (46) and (67) will be Fit into the wedge-shaped grooves (47) and (68) formed in each tool holder (7) and (8), and Rotating member (14) and tool holder (7) and second rotating member (15) and tool holder (8) are connected to each other, but before the engagement pins (46) and (67) protrude, the Switch the valve (103) to direct compressed air from the air nozzle hole (101) to the head of the pin (46). This is to remove machining debris that has entered the head of the pin (46). Ru. Compressed air can also be ejected from the nozzle hole (104) at the same time as the nozzle hole (101). Tighten and remove machining debris that has entered the wedge-shaped groove (47).

[0030] In addition, the rotation angle of the punch tool (5) and the rotation of the die tool (6) when connected as described above. The angles are adjusted to have the same phase in advance, and the rotation angle of the servo motor (29) at this time is The origin is set using the method described above. By fitting the engagement pins (46) and (67), the cam lever (41) )(62) is disengaged, so the turrets (3)(4) of each tool holder (7)(8) The sensor rods (55) and (78) can be rotated freely relative to each other, and the upper and lower positions of each sensor rod (55) and (78) are Each engagement pin (46) (67) is detected by a sensor. Each groove (47 )(68), and then check the fluid port (52)(74) side, that is, the engagement pin. Make sure that the fluid pressure in the fluid chamber on the side that causes the buttons (46) and (67) to protrude has reached the specified pressure. After confirming with the pressure switch (via the AND circuit), The servo motor (29) is rotated by a predetermined angle, and the transmission shaft (24) (25) and the worm gear The first and second rotating members (14) and (15) are the same through a transmission system consisting of (16) and (17) The punch tool (5) and die tool (6) are rotated by the same angle. It is possible.

[0031] After the tools (5) and (6) are rotated as described above, the ram (9) moves up and down. After performing the specified punching process, the servo motor (29) is rotated again to perform the punching process. 1. The second rotating members (14) and (15) are returned to their original positions, which means that each tool (5) and (6) The engagement pins (46) (67) are returned to the original angle and retracted into each rotating member (14) (15). The connection will be disconnected.

[0032] At the same time as the connection is removed, the cam levers (41) and (62) are attached to each working pin (44) and (65). When pushed, the tools (5) and (6) engage with the grooves (45) and (66) on the turrets (3) and (4), respectively. ) and the tool holders (7)(8) are again non-rotatable relative to the turrets (3)(4). made into a fixed state.

[0033] In addition, the engaging pins (46) and (67) can be moved in and out of each rotating member (14) and (15) by using the pins on the other side. (54) and (76) are connected to the proximity sensor by moving the sensor rods (55) and (78), respectively. Confirmed by the server (56)(82).

[0034] In addition, in the above description, a pair of punch tools (5) on turrets (3) and (4) are used. and die tool (6), but all punching on turrets (3) and (4) The tool and the die tool may have the same rotatable structure, or they may be placed in any number of locations at any location. It goes without saying that the tool may be rotatable while the other tool pairs are fixed to the turret. be.

[0035]

[Effect of the idea]

As is clear from the above explanation, the mold rotating device according to this invention has a clutch connection. Prior to engagement, the engaged end of the clutch is cleaned of machining debris, etc. by air jetted from the air nozzle. This ensures that the clutch connection is always in perfect condition. failure of the upper and lower tools (punch tool, die tool) due to mechanical causes. I was able to almost completely eliminate my discomfort.

[Brief explanation of drawings]

[Figure 1] Side view of the turret part of a turret punch press machine

[Fig. 2] Partial cross-sectional side view of the punch tool and the first rotating member portion

[Figure 3] Vertical side view of punch tool part

[Fig. 4] Partial cross-sectional side view of the die tool and the second rotating member portion

[Figure 5] Cross-sectional view taken along the line V-V in Figure 4

[Explanation of symbols]

1 Upper frame 2 Lower frame 3 Upper turret 4 Lower turret 5 Punch tool 6 Die tool 7, 8 Tool holder 14 First rotating member (rotational drive means) 15 Second rotating member (rotational drive means) 46, 67 Engagement pin 47, 68 groove 101 Nozzle hole 102 Air conduit 104 Nozzle hole

Claims (1)

[Scope of utility model registration request] Claim 1: A bunch tool provided on the upper turret is freely rotatable about an axis perpendicular to the upper turret, and a die tool provided on the lower turret is freely rotatable about an axis perpendicular to the lower turret. , rotary drive means facing the upper turret and lower turret, respectively, on the fixed frame are interlocked and connected to the tool holder of the rotatable punch tool and the tool holder of the rotatable die tool via clutches so as to be freely engageable and detachable. 1. A mold rotation device for a turret punch press machine, characterized in that the turret punch press machine is rotatably driven by the turret punch press machine, and is provided with an air nozzle that spouts air toward an engagement end of the clutch.