CN102581171B - Adjustable multi-angle movable bending mechanism - Google Patents

Abstract

The invention discloses an adjustable multi-angle movable bending mechanism. A bending positioning mechanism, a bending transformation mechanism and a tilting adjustment mechanism are respectively arranged on the bending mechanism. After the combination of the bending positioning mechanism and the bending transformation mechanism of the present invention, the bending plate of the bending mechanism can be controlled to bend the steel bars into two different angles according to actual needs, and by changing the positions of the bending positioning mechanism and the bending transformation mechanism, the Bending angle of 0-270 degrees; the present invention is applied to the steel bar bending machine, and its tilting adjustment mechanism makes the steel bar tilt at a small angle after each bending. Interference saves the last step of manually lifting the steel bar in the bending hoop. The invention reduces the work intensity of the user, improves the work efficiency, ensures the personal safety of the user, and has strong economic and social benefits.

Description

Adjustable multi-angle mobile bending mechanism

technical field

The invention relates to a steel bar bending mechanism, in particular to an adjustable multi-angle movable bending mechanism.

Background technique

The steel bar bending machine is an indispensable equipment on the construction site. The bending mechanism in the commonly used steel bar bending machine mainly relies on the bending plate and the positioning pin and rotating pin on the bending plate to bend the fed steel bar. The principle of processing is: the gear shaft in the gear mechanism is driven to rotate through the driving device, such as a motor and an oil cylinder, and then the curved plate fixed on the gear shaft is driven to rotate. The structure of this bending mechanism is relatively simple. It can only bend a single steel bar at a fixed angle such as 90 degrees or 135 degrees at a time, and the angle cannot be adjusted. For a large number of steel hoops that need to be bent at two angles, Or when it is necessary to bend out of an angle that is not commonly used, this mechanism is powerless.

When people use the traditional bending mechanism to bend hoops, they must manually feed the steel bars section by section. To bend 5 corners of the hoop, the steel bars must be fed 5 times. There is also a security risk. In addition, when the bending mechanism is used on the steel bending machine to bend the hoop, the last step must be to lift the steel bar slightly by hand, otherwise there will be interference and "fighting" at both ends of the steel hoop as shown in Figure 1. This operation is quite It is troublesome, and the operator needs to pay attention to the whole process during the hoop bending process, which greatly reduces the work efficiency of the hoop bending workers.

Contents of the invention

In order to solve the above technical problems, the object of the present invention is to provide an adjustable multi-angle movable bending mechanism.

The technical scheme adopted in the present invention is:

An adjustable multi-angle mobile bending mechanism, including a guide rail beam, a sliding seat slidably arranged on the guide rail beam, a bending mechanism is arranged on the sliding seat, and a moving power that drives the bending mechanism to slide back and forth along the guide rail beam is fixed on the guide rail beam The bending mechanism includes a box, the top of the box is provided with a bending plate, the bending plate is connected with the gear mechanism fixed in the box through the gear shaft, and the bending mechanism also includes an oil cylinder arranged outside the box and parallel to the guide rail beam. The end of the piston rod of the oil cylinder is connected with a drive gear mechanism to drive the rack mechanism to rotate the curved plate. It is characterized in that: the piston rod of the oil cylinder is fixed with a bending positioning mechanism that can move with the piston rod. mechanism, the box is provided with a bending stroke switch; one end of the bending transformation mechanism is connected to the bending positioning mechanism, and the bending stroke switch is triggered by the bending positioning mechanism to control the angle of rotation of the bending plate.

As a further improvement of the present invention, the box body and the sliding seat are connected and positioned through a tilting adjustment mechanism; the tilting adjustment mechanism includes a support shaft and an adjusting bolt; the support shaft is arranged horizontally along the direction of the sliding seat, and one side is fixed on On the sliding seat, the other side is movably connected to the fixing plate on the back of the box; the adjusting bolt is screwed out from the inside to the outside of the fixing plate with threaded holes, and the tail end of the screw rod is pushed on the sliding seat.

As a further improvement of the present invention, the bending positioning mechanism includes a bending stroke bracket fixed on the piston rod of the oil cylinder and moving therewith, and the bending stroke bracket is connected with an angle regulator and an angle converter sequentially along the direction of the oil cylinder from front to back.

As a further improvement of the present invention, grooved rails are opened on the bending stroke bracket, and the angle adjuster and angle converter are respectively fixed on the grooved rails by bolts.

As a further improvement of the present invention, the bending transformation mechanism includes a base plate fixed on the guide rail beam, an automatic change slot is rotatably connected to the base plate, and a hook arm is fixed at the lower end of the automatic change slot; Stretch out the angle changing rod of bending stroke bracket, the end of angle changing rod is provided with the pulley that can import automatic changing groove, when pulley moves in automatic changing groove, can drive the front end of angle changing rod to swing up and down.

As a further improvement of the present invention, the angle converter includes a positioning block, the side of the positioning block is provided with a converter bumper, the angle conversion rod passes through the positioning block and its front end is fixedly connected with the converter bumper.

As a further improvement of the present invention, the hook block is fixed at the bottom of the box body, and when the box body moves to the leftmost end, the hook block can hook the hook arm to rotate counterclockwise to drive the automatic changing tank to rotate.

As a further improvement of the present invention, the base plate is fixed with a return torsion spring that can make the automatic changing slot rotate clockwise and return after the hook block is separated from the hook arm; the limit pin is fixed on the edge of the base plate.

As a further improvement of the present invention, the mobile power head is an elongated oil cylinder, and a long strip-shaped stroke bracket with a chute is fixed on the piston shaft; a stroke bumper is fixed at one end of the stroke bracket close to the bending mechanism, and The stroke adjustment block is connected with bolts, and a travel switch fixed on the guide rail beam is arranged between the stroke bumper block and the stroke adjustment block.

As a further improvement of the present invention, a central pin shaft is fixed in the center of the curved disc, and a rotating pin shaft is fixed on the circumference of the curved disc surface; a gear pin seat is fixed on the top of the box, and the gear pin fixed on it The shaft is positioned above the circumference of the curved disk and on the other side of the same semicircle as the pivot pin.

The beneficial effects of the present invention are: after the combination of the bending positioning mechanism and the bending conversion mechanism of the present invention, the bending plates of the bending mechanism can be controlled to bend the steel bars into two different angles according to actual needs, and by changing the bending positioning mechanism and the bending Change the position of the mechanism to adjust the bending angle of 0-180 degrees; after the present invention is applied to the steel bar bending machine, its tilting adjustment mechanism makes the steel bar tilt at a small angle after each bending, and the steel bar is bent into a steel hoop , the two ends are staggered, no interference occurs, and the last step of manually lifting the steel bar in the bending hoop is omitted. The utility model reduces the work intensity of the user, improves the work efficiency, guarantees the personal safety of the user, and has strong economic and social benefits.

Description of drawings

The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Figure 1 is a schematic diagram of the forming of steel hoops bent by a traditional steel bar bending machine;

Fig. 2 is a structural representation of the present invention;

Fig. 3 is the front view of the present invention;

Fig. 4 is a top view of the present invention;

Fig. 5 is a schematic partial cross-sectional view of A direction of the present invention;

Fig. 6 is the left view of the present invention;

Fig. 7 is the right view of the present invention;

Figure 8 is a top view of the present invention;

Fig. 9 is the schematic diagram of parallel bending steel bar of the present invention;

Fig. 10 is a schematic diagram of forming a steel bar in a parallel state according to the present invention;

Fig. 11 is a schematic diagram of the obliquely bent steel bar of the present invention.

Detailed ways

As shown in Figures 2 and 3, an adjustable multi-angle mobile bending mechanism includes a guide rail beam 1, a sliding seat 2 slidably arranged on the guide rail beam 1, a bending mechanism 3 is arranged on the sliding seat 2, and the guide rail beam 1 A mobile power head 4 that drives the bending mechanism 3 to slide back and forth along the guide rail beam 1 is fixed on it. The mobile power head 4 is an elongated oil cylinder, and its piston shaft end is fixed on the bending mechanism 3, and the telescopic movement of the piston shaft in the elongated oil cylinder can drive the bending mechanism 3 to move on the guide rail beam 1. In addition, a strip-shaped travel bracket 41 with a chute is fixed on the piston shaft, and the bracket also moves with the piston shaft. Stroke support 41 is welded a stroke bumper 42 near one end of bending mechanism 3, promptly near the visible end of piston shaft, and the other end has bolted stroke adjustment block 43. The stroke bumper 42 and the stroke adjustment block 43 are actually a small section of upward angle irons respectively, and a travel switch 44 is fixed on the guide rail beam 1, and is located between the two sections of angle irons, and can be touched by the two sections of angle irons respectively. generate corresponding actions.

When the piston shaft of the elongated oil cylinder continues to stretch out and drives the bending mechanism 3 to move, the travel bracket 41 moves together along the direction of the piston shaft until the travel adjustment block 43 touches the travel switch 44, which triggers the travel switch 44 to control the movement of the power head 4. The elongated oil cylinder stops moving, and now the bending mechanism 3 is located at the far right end; when the external program controls the elongated oil cylinder to make its piston shaft contract and move, the stroke bracket 41 returns until the stroke bumper 42 triggers the stroke switch 44, and the elongated oil cylinder is controlled to stop Movement, this moment bending mechanism 3 is positioned at the leftmost. In addition, the stroke adjusting block 43 is fixed on the chute of the stroke bracket 41 with bolts, and the stroke distance of the bending mechanism 3 can be adjusted by changing the position of the stroke adjusting block 43 in the chute.

As shown in Figure 2, Figure 3, Figure 5, and Figure 9, the bending mechanism 3 includes a box body 31, and the top of the box body 31 is provided with a curved plate 32, and the curved plate 32 is connected to the gear mechanism fixed in the box body 31 through the gear shaft 33. 34 is connected, and the gear shaft 33 is fixedly connected with the curved plate 32 with a flat key. The bending mechanism 3 also includes an oil cylinder 35 arranged outside the box body 31 and parallel to the rail beam 1 . The end of the piston rod of the oil cylinder 35 is connected with a rack mechanism 36 that drives a gear mechanism 34 to drive the bending plate 32 to rotate. In this embodiment, the gear mechanism 34 is actually a gear box, and a gear set with a gear shaft is fixed inside with a bearing. The combination of the rack and the gear changes the direction of the horizontal movement of the piston rod of the oil cylinder 35 to the movement in the circumferential direction of the curved plate 32, that is, the distance that the piston rod of the oil cylinder 35 protrudes can be converted into the angle at which the curved plate 32 rotates.

The center pin shaft 321 is fixed on the center of the bent disc 32, and the rotation pin shaft 322 is fixed on the circumference of the bent disc 32 surface. The top of 31 is fixed with a gear pin seat 312, and the gear pin shaft 313 fixed on it is positioned above the circumference of the curved disc 32, and is on the other side of the same semicircle of the bent disc 32 as the rotating pin shaft 322. When it is necessary to bend the steel bar, put the steel bar flat on the curved plate 32, rotate between the pin shaft 322, the gear pin shaft 313 and the central pin shaft 321, and then make the curved plate 32 rotate clockwise, then the steel bar will be rotated by the central pin. The shaft 321 is a rotating shaft, the rotating pin shaft 322 is a bending point, and the gear pin shaft 313 is a fulcrum to bend a set angle.

As shown in FIGS. 9 and 11 , the box body 31 and the sliding seat 2 are connected and positioned through the tilting adjustment mechanism 5 . The tilting adjustment mechanism 5 is made up of a fulcrum 51 , an adjusting bolt 52 and a fixing plate 311 . Wherein, the supporting shaft 51 is arranged horizontally along the direction of the sliding seat 2 , one side of its circumference is fixed on the sliding seat 2 , and the other side is movably connected to the fixing plate 311 on the back of the box body 31 . There are 4 adjusting bolts 52, which are symmetrically arranged near the four corners of the fixing plate 311, and are screwed out from the threaded holes of the fixing plate 311 from the inside of the casing 31, so that the tail end of the screw rod is pushed against the sliding seat 2. Because the sliding seat 2 and the guide rail beam 1 are fixed, by tightening the adjusting bolts below the fixing plate 311 and loosening the adjusting bolts above, the fixing plate 311 can drive the entire bending mechanism 3 clockwise around the support shaft 51 together with the box body 31 Rotate a small angle, so that the steel bar will be inclined at a certain angle on its vertical plane every time it is bent. At the end of the steel bar bending into a steel hoop, even if it is not manually operated, there will be no interference "fighting" at both ends of the steel hoop , to reduce the operating intensity of the operator, as shown in Figure 11. In this example, if the bending mechanism 3 does not tilt the angle, the steel hoop formed by bending the steel bar will appear in the shape shown in Figure 10, which does not meet the requirements of the steel hoop for construction.

As shown in Fig. 2-Fig. 4 and Fig. 6-Fig. 7, the main body of the oil cylinder 35 is fixed on the side of the box body 31, the piston rod is fixed with a bending positioning mechanism 6 that can move telescopically with the piston rod, and the guide rail beam 1 is fixed with a The bending conversion mechanism 7 has a bending stroke switch 37 fixed on the box body 31 for controlling the stroke of the bending positioning mechanism 6 .

Bending positioning mechanism 6 comprises the bending stroke support 61 that is fixed on the piston rod of oil cylinder 35, has grooved track 64 on the bending stroke support 61, and an angle regulator 62 and angle converter 63 are used from front to back along the direction of oil cylinder 35. Bolts are fixed on the grooved track 64 in turn. The angle converter 63 includes a positioning block 631, and the flank of the positioning block 631 is provided with a converter collision block 632. The converter collision block 632 can swing up and down in the vertical direction under the drive of an external force, and the upper swing is the closing of the converter collision block 632. The hem opens for the shifter bumper 632. When the bending stroke support 61 moves under the extension of the piston rod, the bending plate 32 starts to rotate; if the converter bumper 632 is closed, the bending stroke switch 37 cannot be triggered, and the bending stroke support 61 continues to move until the angle adjuster 62 Trigger the bending travel switch 37 to stop, and now, the bending disc 32 has rotated a larger angle; if the converter bumper 632 is opened, the bending travel support 61 moves to the angle converter 63 and triggers the bending travel switch 37 to stop. , because the distance that the piston rod of the oil cylinder 35 stretches out is smaller than the distance that the angle adjuster 62 triggers the bending travel switch 37, the bending disc 32 rotates a small angle.

The angle adjuster 62 and the angle converter 63 can respectively change positions on the grooved track 64 to achieve the purpose of changing the travel distance of the bending stroke bracket 61 and thereby changing the rotation angle of the bending disc 32 . All can be realized as long as the angle regulator 62 is ensured between the angle converter 63 and the oil cylinder 35 .

Bending conversion mechanism 7 comprises the base plate 71 that is fixed on the guide rail beam 1, and the automatic conversion groove 72 is hinged on the base plate 71, and the hook arm 73 is hinged simultaneously on the hinge shaft, and the hook arm 73 and the automatic conversion groove 72 are at the lower end of the automatic conversion groove 72. Fixed, the hook arm 73 and the automatic conversion slot 72 can rotate around the hinge axis on the base plate 71 . Angle converter 63 is provided with the angle conversion lever 75 that stretches out bending stroke support 61, and its front end passes positioning block 631 and is fixedly connected with converter collision block 632, and its end is provided with pulley 74, and this pulley 74 can import automatic conversion. slot 72. When the pulley 74 was active in the automatic conversion groove 72, it could drive the front end of the angle conversion rod 75 to swing up and down.

The hook block 38 is fixed at the bottom of the box body 31. When the box body 31 moves from the right end to the leftmost end, the hook block 38 can hook the hook arm 73 to rotate counterclockwise to drive the automatic conversion slot 72 to rotate counterclockwise, and guide the pulley 74 into the automatic conversion slot 72 Inside.

As shown in FIG. 8 , a return torsion spring 76 is fixed on the base plate 71 , and a limit pin 77 is fixed on the edge of the base plate 71 . After the box body 31 moves to the right from the leftmost end, the hook block 38 is separated from the hook arm 73. Under the elastic return action of the reset torsion spring 76, the automatic conversion slot 72 rotates clockwise and resets until it touches the limit of the edge of the substrate 71. Bit pin 77. This moment, pulley 74 deviates from automatic changing groove 72.

In this embodiment, the bending principle of the bending mechanism 3 is as follows:

When the piston shaft of the mobile power head 4 shrinks and drives the bending mechanism 3 to move to the leftmost end, as shown in Fig. 4, Fig. 6-Fig. The conversion slot 72 rotates counterclockwise to rotate the angle conversion lever 75 and make its front end drive the converter bumper 632 to close. When bending the steel bar, the piston rod of the oil cylinder 35 drives the bending stroke support 61 to move to the right, and drives the bending plate 32 to rotate. Since the converter bumper 632 is closed, the bending stroke switch 37 cannot be triggered, and the piston rod continues to extend until the angle is adjusted. The device 62 triggers the bending travel switch 37, and now the bending disc 32 has turned over a larger angle, which is 135 degrees in the present embodiment. After the bending travel switch 37 is triggered, the piston rod shrinks back to its original position, and the bending disc 32 turns back to the initial state simultaneously.

When the piston shaft of the mobile power head 4 is elongated, and the bending mechanism 3 is driven to move to the rightmost end, the hook block 38 and the hook arm 73 are disengaged, and the hook arm 73 and the automatic conversion groove 72 are under the elastic recovery effect of the reset torsion spring 76. The hour hand rotates to the position of the limit pin 77; and drives the angle conversion lever 75 to swing so that the converter bumper 632 is opened. When bending the steel bar, the piston rod of the oil cylinder 35 drives the bending stroke bracket 61 to move to the right, and drives the bending disc 32 to rotate. Since the converter bumper 632 is opened, the bending stroke switch 37 can be triggered, and the bending stroke bracket 61 moves to the right until the conversion The device bumper 632 triggers the bending travel switch 37, and at this moment, the bending disc 32 has turned a small angle, which is 90 degrees in the present embodiment. After the bending travel switch 37 is triggered, the piston rod shrinks back to its original position, and the bending disc 32 turns back to the initial state simultaneously.

The above descriptions are only the preferred implementation modes of the present invention, as long as the technical solutions to achieve the purpose of the present invention by basically the same means fall within the scope of protection of the present invention.

Claims (6)

1. an adjustable multi-angle movable bending mechanism, comprise guide rail beam (1), slidably be arranged on slide (2) on guide rail beam (1), slide seat (2) and be provided with bending mechanism (3), be fixed with on guide rail beam (1) and drive the mobile unit head (4) that bending mechanism (3) slidably reciprocates along guide rail beam (1), described bending mechanism (3) comprises casing (31), casing (31) top is provided with kidney basin (32), kidney basin (32) is connected with the gear mechanism (34) in being fixed on casing (31) by gear shaft (33), bending mechanism (3) also comprises the oil cylinder (35) that is located at outside casing (31) and is parallel to guide rail beam (1), the piston-rod end of oil cylinder (35) is connected with driven wheel mechanism (34) thereby drives the rackwork (36) that kidney basin (32) rotates, it is characterized in that: be fixed with the crooked detent mechanism (6) that can move with piston rod on the piston rod of described oil cylinder (35), be fixed with crooked mapping device (7) on guide rail beam (1), casing (31) is provided with crooked travel switch (37), described crooked mapping device (7) one ends are connected with crooked detent mechanism (6), and trigger crooked travel switch (37) by crooked detent mechanism (6) and control the angle that kidney basin (32) rotates, the crooked stroke support (61) that described crooked detent mechanism (6) comprises on the piston rod that is fixed on oil cylinder (35) and moves thereupon, crooked stroke support (61) is connected with angle demodulator (62) and angle transverter (63) in turn from front to back along oil cylinder (35) direction, have grooved track (64) on described crooked stroke support (61), described angle demodulator (62) and angle transverter (63) are separately fixed on grooved track (64) by bolt, described crooked mapping device (7) comprises the substrate (71) be fixed on guide rail beam (1), the upper rotating auto-changing groove (72) that is connected with of substrate (71), the lower end of auto-changing groove (72) is fixed with and hooks arm (73), described angle transverter (63) is provided with the angular transformation bar (75) that stretches out crooked stroke support (61), the end of angular transformation bar (75) is provided with the pulley (74) that can import auto-changing groove (72), when pulley (74) is movable in auto-changing groove (72), can drive angular transformation bar (75) front end swings up and down, described angle transverter (63) comprises locating piece (631), locating piece (631) flank is provided with converter collision block (632), described angular transformation bar (75) is fixedly connected with converter collision block (632) through locating piece (631) and front end.

2. adjustable multi-angle movable bending mechanism according to claim 1 is characterized in that: described casing (31) with slide seat (2) and be connected location by the governor motion (5) that can incline; The described governor motion that inclines (5) comprises fulcrum (51), adjusting bolt (52); It is horizontally disposed that seat (2) direction is slided on described fulcrum (51) edge, and a side is fixed on and slides seat (2) above, and opposite side is movably connected on the fixed head (311) at casing (31) back side; The fixed head (311) that described adjusting bolt (52) is back-outed from inside to outside and is provided with screwed hole, the screw rod tail end withstands on and slides on seat (2).

3. adjustable multi-angle movable bending mechanism according to claim 1, it is characterized in that: described casing (31) bottom fixed hook piece (38), casing (31) is while moving to high order end, and hook piece (38) can hook hook arm (73) and be rotated counterclockwise drive auto-changing groove (72) rotation.

4. adjustable multi-angle movable bending mechanism according to claim 3 is characterized in that: be fixed with after hooking piece (38) and hook arm (73) separating the reduction torsion spring (76) that can make auto-changing groove (72) turn clockwise to reset on described substrate (71); Described substrate (71) edge is fixed with spacer pin (77).

5. adjustable multi-angle movable bending mechanism according to claim 1, it is characterized in that: described mobile unit head (4) is microscler oil cylinder, fixedly has the strip stroke support (41) of chute on its axis of the piston; Described stroke support (41) is fixed with stroke collision block (42) near an end of bending mechanism (3), the other end connects stroke adjustment piece (43) with bolt, is provided with the travel switch (44) be fixed on guide rail beam (1) between described stroke collision block (42) and stroke adjustment piece (43).

6. adjustable multi-angle movable bending mechanism according to claim 1, it is characterized in that: described kidney basin (32) central authorities are fixed with central pin shaft (321), on the circumference on kidney basin (32) surface, are fixed with rotary pin shaft (322); Described casing (31) top is fixed with gear key seat (312), and gear bearing pin (313) fixed thereon is positioned at kidney basin (32) circumference top, and with the opposite side of rotary pin shaft (322) at same semicircle.

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