CN218134033U

CN218134033U - Pneumatic bending device

Info

Publication number: CN218134033U
Application number: CN202222646865.8U
Authority: CN
Inventors: 张日明
Original assignee: Foshan Dezhao Technology Co ltd
Current assignee: Foshan Dezhao Technology Co ltd
Priority date: 2022-10-08
Filing date: 2022-10-08
Publication date: 2022-12-27
Anticipated expiration: 2032-10-08

Abstract

The utility model discloses a pneumatic bending device, which comprises a platform plate and a bending push wheel for bending a steel bar workpiece, wherein the platform plate is provided with a bending positioning block, the bending positioning block is provided with a positioning groove for accommodating the steel bar workpiece in an adaptive manner, the bending push wheel is arranged at the upper side of the platform plate, the bending push wheel is arranged corresponding to the bending positioning block, the lower side of the platform plate is provided with a swing arm, and one end of the swing arm is hinged with the platform plate; the bending device is characterized by further comprising a bending air cylinder, the bending air cylinder is in driving connection with the other end, corresponding to the swing arm, a bending push rod is arranged on the swing arm, a bending push wheel is coaxially and rotatably connected to the upper end of the bending push rod, and a wedge block used for supporting a first bending portion of a steel bar workpiece is arranged on the platform plate. The pneumatic bending device of the utility model has simple manufacture and lower cost, is suitable for bending small batches of round steel rods, and is also beneficial to reducing the labor intensity and improving the working efficiency; meanwhile, the wedge-shaped block is arranged, so that the quality of a bent finished product of the steel bar workpiece is favorably improved.

Description

Pneumatic bending device

Technical Field

The utility model relates to a bending device field of bar-shaped work piece, concretely relates to pneumatic bending device.

Background

At present, a round steel bar workpiece needs to be bent for a plurality of times to form a hook-shaped part, under the condition of small batch, if a bending machine on the market is purchased by a hardware factory, the cost of the bending machine is distributed to each part, the manufacturing cost of the part is too high to cause cost loss, and a worker specially recruiting the bending machine is needed, after the whole batch of parts are manufactured, the bending machine is empty to cause waste, so that the steel bar workpiece is put into a flat tongs at present, and then the steel bar workpiece is bent by knocking the steel bar workpiece, so that the labor intensity is high, the working efficiency is too low, and a device which is low in cost and easy to operate is needed to be manufactured to realize mechanical bending of the steel bar workpiece.

Disclosure of Invention

An object of the utility model is to overcome prior art not enough, provide a pneumatic bending device, it is favorable to improving work efficiency, reduces intensity of labour, and the cost of manufacture is lower moreover.

The purpose of the utility model is realized by the following technical proposal.

The utility model discloses a pneumatic bending device, including the landing slab and be used for bending the bending push wheel of rod iron work piece, be equipped with the locating piece of bending on the landing slab, be formed with the constant head tank that is used for adaptation holding rod iron work piece on the locating piece of bending, the bending push wheel is located the upside of landing slab, the bending push wheel corresponds the setting with the locating piece position of bending, the downside of landing slab is equipped with the swing arm, the one end of swing arm with the landing slab articulates; still including the cylinder of bending, the cylinder drive connection of bending the corresponding other end of swing arm, be equipped with the push rod of bending on the swing arm, bend push wheel coaxial rotation connect in the upper end of push rod of bending, be equipped with the wedge that is used for supporting the first portion of bending of bar iron work piece on the landing slab.

Preferably, the swing arm with the landing slab is articulated through fixed hinge pin, the piston rod of the cylinder of bending with the swing arm is articulated through movable hinge pin, the push rod of bending is located fixed hinge pin with between the movable hinge pin.

Preferably, the truckle is installed to the downside of swing arm, the below of landing slab is equipped with and is used for supporting the bottom plate of truckle.

Preferably, be equipped with the pillar on the bottom plate, the landing slab with the upper end fixed connection of pillar.

Preferably, the landing slab is formed with the arc and dodges the hole, the push rod of bending passes the arc dodges the hole setting.

Preferably, the wedge includes first swash plate and second swash plate, the one end of first swash plate with the one end of second swash plate is connected as an organic whole, first swash plate with the second swash plate forms the obtuse angle.

Preferably, the platform plate is provided with a backup plate for the outer side of the excess material part of the steel bar workpiece to lean against.

Preferably, be equipped with on the landing slab and be used for pushing away the clout portion of rod iron work piece paste in the kicking block of backup plate, the kicking block is formed with the accent position slot hole, the kicking block through install in adjust downthehole screw in the position slot hole with the landing slab is fixed.

Preferably, the platform plate is provided with a tail end leaning seat for leaning against the tail end of the excess material part of the steel bar workpiece.

Preferably, the tail end rest is fixed on the platform plate through a clamp.

Compared with the prior art, the utility model, its beneficial effect is: the bending push wheel is arranged on the platform plate, the bending locating block is arranged on the platform plate, the locating groove which is used for accommodating the steel bar workpiece in a matching mode is formed in the bending locating block, the bending push wheel is arranged on the upper side of the platform plate, the bending push wheel is arranged corresponding to the bending locating block in position, the swing arm is arranged on the lower side of the platform plate, one end of the swing arm is hinged to the platform plate, the bending cylinder is arranged to drive and connect the other end, corresponding to the swing arm, the bending push rod is arranged on the swing arm, the bending push wheel is coaxially and rotatably connected to the upper end of the bending push rod, and the bending push wheel is beneficial to achieving mechanization of bending the steel bar workpiece at low cost, so that labor intensity is reduced, and working efficiency is improved; in addition, the wedge-shaped block is arranged, so that the quality of a bent finished product of the steel bar workpiece is favorably improved.

Drawings

Fig. 1 is a schematic view of the overlooking structure of the pneumatic bending device of the present invention.

Fig. 2 is a front view schematic diagram of the pneumatic bending device of the present invention.

Fig. 3 is the utility model discloses a connection structure of cylinder of bending and swing arm overlooks the sketch map.

Fig. 4 is a schematic side view of the wedge of the present invention.

Fig. 5 is a schematic view of the overlooking structure of the combination of the steel bar workpiece before bending and the pneumatic bending device of the present invention.

Fig. 6 is a schematic view of a top view structure of a steel bar workpiece in a second-time bending preparation state and the pneumatic bending device of the present invention.

Fig. 7 is a left side view structural diagram of the combination of the steel bar workpiece in the ready state for the second bending and the pneumatic bending device of the present invention.

Fig. 8 is a schematic view of a overlooking structure of a steel bar workpiece and the pneumatic bending device of the present invention during the second bending process.

Fig. 9 is a schematic view of a three-dimensional structure of a steel bar workpiece bent by the pneumatic bending device of the present invention.

Fig. 10 is a schematic left side view of a steel bar workpiece prepared for a second bending without the wedge of the present invention.

Fig. 11 is a schematic perspective view of a steel bar workpiece formed by bending without the wedge of the present invention.

Description of the reference symbols: a platform plate 1; an arc-shaped avoidance hole 101; a backup plate 2; bending the positioning block 3; a positioning groove 301; bending the push wheel 4; bending the push rod 41; a tail end rest 5; a top block 6; a long hole 601 is adjusted; a wedge block 7; a first swash plate 701; a second swash plate 702; a clamp 8; a bottom plate 9; a pillar 91; bending the air cylinder 10; a cylinder tail 1001; a piston rod 1002; a swing arm 11; a caster 12; a fixed hinge pin 13; a live hinge pin 14; a steel bar workpiece 99; a first bent portion 9901; a second bent portion 9902; a remainder portion 9900.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

The utility model discloses a pneumatic bending device, as shown in fig. 1-3, including landing slab 1 and the push wheel 4 of bending that is used for bending rod iron work piece 99, be equipped with bending locating piece 3 on landing slab 1, bending locating piece 3 can weld on landing slab 1, be formed with the constant head tank 301 that is used for adaptation holding rod iron work piece 99 on the bending locating piece 3, constant head tank 301 runs through bending locating piece 3 about, bending push wheel 4 locates the upside of landing slab 1, bending push wheel 4 corresponds the setting with bending locating piece 3 position, the downside of landing slab 1 is equipped with swing arm 11, one end of swing arm 11 is articulated with landing slab 1; the pneumatic bending device of the utility model also comprises a bending cylinder 10, the bending cylinder 10 is connected with the other end corresponding to the swing arm 11 in a driving way, a bending push rod 41 is arranged on the swing arm 11, and the bending push rod 41 can be welded on the swing arm 11; the bending push wheel 4 is coaxially and rotatably connected to the upper end of the bending push rod 41, the bending push wheel 4 can be sleeved outside the upper end of the bending push rod 41, a step used for being in contact with the lower end face of the bending push wheel 4 can be formed on the bending push rod 41, and a baffle used for being attached to the upper end face of the bending push wheel 4 can be installed on the upper end face of the bending push rod 41 through a corresponding screw, so that the bending push wheel 4 is prevented from being separated from the bending push rod 41. As shown in fig. 6, the table plate 1 is provided with a wedge 7 for supporting the first bending portion 9901 of the steel bar workpiece 99.

The following brief description illustrates the working principle of the pneumatic bending device of the utility model: as shown in fig. 5, a steel bar workpiece 99 with a circular cross section is placed into the positioning groove 301 from top to bottom, the bending push wheel 4 is located on the rear side of the steel bar workpiece 99, the bending cylinder 10 drives the swing arm 11 to swing, and the bending push rod 41 is arranged on the swing arm 11, so that the bending push wheel 4 swings forward along with the swing arm 11, the bending push wheel 4 pushes the portion, located on the right side of the positioning groove 301, of the steel bar workpiece 99, and the steel bar workpiece 99 is bent, and in the bending process, the bending push wheel 4 rolls on the steel bar workpiece 99 at the same time, and accordingly, the blocking force applied to the bending cylinder 10 is favorably reduced. The bending push wheel 4 swings around the right end of the positioning groove 301, so that the bending push wheel 4 is kept close to the right end of the positioning groove 301 in the bending process, and the steel bar workpiece 99 forms a relatively sharp bending angle (namely, the bending radius is relatively small). As shown in fig. 6, after the first bending, the steel bar workpiece 99 forms a first bending portion 9901, then the steel bar workpiece 99 moves to the right to a desired position, and the wedge 7 is placed on the lower side of the first bending portion 9901, so that the first bending portion 9901 is in an upward tilting state with respect to the remainder portion 9900 of the steel bar workpiece 99 as shown in fig. 7, and the bending cylinder 10 drives the bending push wheel 4 to push the steel bar workpiece 99 forward as shown in fig. 6, so that a second bending portion 9902 is formed as shown in fig. 8. In the bending process, because the bending push wheel 4 is subjected to the reaction force of the steel bar workpiece 99, the bending push rod 41 is slightly inclined backwards in practical situations, which is caused by slight elastic torsional deformation of the swing arm 11 and slight elastic bending deformation of the bending push rod 41, in practical situations, as shown in fig. 7, the bending push wheel 4 pushes the steel bar workpiece 99 obliquely upwards, and as the wedge block 7 is arranged, the first bending portion 9901 is tilted, so that the bending push force applied to the steel bar workpiece 99 in the initial stage of forming the second bending portion 9902 is relatively close to the same plane as the first bending portion 9901, as shown in fig. 9, and thus the first bending portion 9901, the second bending portion 9902 and the remainder portion 9900 are located in the same plane after the steel bar workpiece 99 is bent twice. As shown in fig. 10, it is assumed that no wedge 7 is provided, when bending for the second time, the first bending portion 9901 is attached to the platform plate 1, and the bending pushing wheel 4 still pushes the excess material portion 9900 obliquely upward to bend the excess material portion 9900, as shown in fig. 11, the first bending portion 9901 and the excess material portion 9900 form an obvious space angle, and in practical terms, when the excess material portion 9900 is horizontally placed, the first bending portion 9901 can be inclined downward, so that the actually required purpose of bending the steel bar workpiece 99 to form a plane bending structure cannot be achieved, so that relatively speaking, the utility model discloses a set up wedge 7, simple structure and cost have improved the quality of the bending finished product of the steel bar workpiece 99 with lower cost. From the above, it is visible, compare with the bender on the market, the utility model discloses a pneumatic bending device's simple structure, it is all easy to draw materials and make, so the cost of manufacture is lower, adapts to small batch volume round steel stick spare and bends and process, owing to replace the staff to bend through setting up bending cylinder 10, realizes bending rod iron work piece 99 mechanization with lower cost, is favorable to reducing intensity of labour and improves work efficiency in addition.

Further, as shown in fig. 2, the swing arm 11 is hinged to the platform 1 through a fixed hinge pin 13, the fixed hinge pin 13 may be screwed and fixed on the lower side of the platform 1, the fixed hinge pin 13 is perpendicular to the platform 1, so that the swing arm 11 horizontally swings, as shown in fig. 3, the piston rod 1002 of the bending cylinder 10 is hinged to the swing arm 11 through a movable hinge pin 14, the bending push rod 41 is disposed between the fixed hinge pin 13 and the movable hinge pin 14, more specifically, the cylinder tail of the bending cylinder 10 may be hinged to a fixed object 1001, so that the bending cylinder 10 can swing during operation, and by disposing the bending push rod 41 between the fixed hinge pin 13 and the movable hinge pin 14, the swing arm 11 performs a lever boosting effect, thereby facilitating to increase the bending thrust of the bending push wheel 4 on the steel bar workpiece 99.

Further, as shown in fig. 2, casters 12 are installed on the lower side of the swing arm 11, and a bottom plate 9 for supporting the casters 12 is arranged below the platform board 1, in other words, the bottom plate 9 supports the swing arm 11 by supporting the casters 12, so as to avoid that the end of the swing arm 11 hinged to the piston rod 1002 falls down due to the fact that the length of the swing arm 11 is too large, which is beneficial to improving the swing rigidity and stability of the swing arm 11. During the swinging of the swing arm 11, the wheels of the caster 12 roll on the base plate 9.

Further, as shown in fig. 2, a support column 91 is arranged on the bottom plate 9, the platform board 1 is fixedly connected with the upper end of the support column 91, and the support column 91 is distributed on the lower side of the platform board 1, it should be noted that, for easy viewing, only one support column 91 is schematically shown in fig. 2, specifically, screw holes are respectively formed on the upper and lower end faces of the support column 91, and screws are respectively passed through the bottom plate 9 and the platform board 1 to be connected with the corresponding screw holes, and by providing the support column 91 structure, a space for accommodating the swing arm 11 is conveniently formed between the bottom plate 9 and the platform board 1.

Further, as shown in fig. 1 and fig. 2, the platform board 1 is formed with an arc avoiding hole 101, and the bending push rod 41 passes through the arc avoiding hole 901, that is, the swing center of the swing arm 11 coincides with the central point of the arc avoiding hole 901, so that the bending push rod 41 can slide along the arc in the arc avoiding hole 101 in the swing process.

Further, as shown in fig. 4, the wedge block 7 includes a first inclined plate 701 and a second inclined plate 702, one end of the first inclined plate 701 is connected with one end of the second inclined plate 702 as a whole, and the first inclined plate 701 and the second inclined plate 702 form an obtuse angle (i.e. the angle size "X" shown in fig. 4), that is, the wedge block 7 is a sheet metal part, so that the wedge block 7 is simple to manufacture and low in cost. In practice, the wedge 7 is placed on the platform 1 for use, as shown in fig. 5, so that the wedge 7 can be removed without using the wedge 7 when the steel bar workpiece 99 is bent for the first time. Because the wedge 7 is set to the sheet metal part structure, a worker can open or further bend the wedge 7 by respectively pinching the first inclined plate 701 and the second inclined plate 702 with two hands, so that the angle dimension X can be adjusted, specifically, the wedge 7 can be made of a steel plate with the thickness of 0.8 mm to 1.5 mm, the worker can correspondingly adjust the angle dimension X according to the actual bending forming condition of the steel bar workpiece 99, and the angle dimension X does not need to be adjusted under the condition that the trial production of the steel bar workpiece 99 is stable and the required finished product corresponding to the steel bar workpiece 99 is not changed.

Further, as shown in fig. 1, 5 and 6, the platform plate 1 is provided with a backup plate 2 for the outer side of the remainder 9900 of the steel bar workpiece 99 to abut against, and as shown in fig. 6, the first bending portion 9901 forms an included angle with the remainder 9900, and the included angle is referred to as "inner side", so that the outer side of the remainder 9900 is referred to as relative to the included angle. In the bending process, the bending positioning block 3 plays a role of a fulcrum, so the excess material part 9900 tends to swing backwards, and the backup plate 2 is arranged to support the excess material part 9900, so that the abrasion of the positioning groove 301 is favorably reduced, and the steel bar workpiece 99 is stably bent.

Further, as shown in fig. 1 and 6, the platform plate 1 is provided with a top block 6 for pushing and attaching the excess material portion 9900 of the steel bar workpiece 99 to the backup plate 2, the top block 6 is formed with a positioning slot 601, the top block 6 is fixed to the platform plate 1 through a screw installed in the positioning slot 601, and then the screw in the positioning slot 601 is loosened, so that the top block 6 can be displaced on the platform plate 1, the steel bar workpiece 99 can be conveniently placed in or moved, when the displacement of the steel bar workpiece 99 is completed, the top block 6 is moved to push and attach the excess material portion 9900 to the backup plate 2, the screw in the positioning slot 601 is locked, and then bending is performed, and the excess material portion 9900 is further prevented from loosening through the positioning effect of the top block 6 combined with the backup plate 2, which is favorable for stable bending.

Further, as shown in fig. 6, the platform plate 1 is provided with a tail end leaning seat 5 for leaning against the tail end of the excess material portion 9900 of the steel bar workpiece 99, so that the excess material portion 9900 is prevented from moving leftwards in the bending process, and the bending position is facilitated to be accurate.

Further, the tail end rest 5 is fixed on the platform plate 1 through the clamp 8, the clamp 8 can be a "G-shaped clamp" on the market, and refer to a "quick G-shaped clamp" of chinese patent publication No. CN203509968U or an "F-clamp" of chinese patent publication No. CN208528908U, specifically, the tail end rest 5 includes a vertical plate and a horizontal plate, the vertical plate is used for abutting against the tail end of the excess material portion 9900, the horizontal plate is clamped on the platform plate 1 by the clamp 8, so that the tail end rest 5 can be conveniently displaced and adjusted after the clamp 8 is loosened, and after the tail end rest 5 is completely positioned, the tail end rest 5 can be simply and quickly fixed on the platform plate 1.

To sum up, the utility model discloses a pneumatic bending device simple manufacture, the cost is lower, adapts to small batch volume round steel stick and bends the processing, also is favorable to reducing intensity of labour and improves work efficiency.

Claims

1. The utility model provides a pneumatic bending device which characterized in that: the bending device comprises a platform plate (1) and a bending push wheel (4) used for bending a steel bar workpiece (99), wherein a bending positioning block (3) is arranged on the platform plate (1), a positioning groove (301) matched with the bending positioning block (3) for accommodating the steel bar workpiece (99) is formed in the bending positioning block (3), the bending push wheel (4) is arranged on the upper side of the platform plate (1), the bending push wheel (4) is arranged corresponding to the bending positioning block (3), a swing arm (11) is arranged on the lower side of the platform plate (1), and one end of the swing arm (11) is hinged to the platform plate (1); still including bending cylinder (10), cylinder (10) drive connection of bending swing arm (11) the corresponding other end, be equipped with the push rod (41) of bending on swing arm (11), bend push wheel (4) coaxial rotation connect in bend the upper end of push rod (41), be equipped with wedge (7) that are used for supporting first portion (9901) of bending of bar iron work piece (99) on landing slab (1).

2. The pneumatic bending apparatus according to claim 1, wherein: swing arm (11) with landing slab (1) is articulated through fixed hinge pin (13), bend piston rod (1002) of cylinder (10) with swing arm (11) are articulated through activity hinge pin (14), the push rod (41) of bending is located fixed hinge pin (13) with between activity hinge pin (14).

3. The pneumatic bending apparatus according to claim 2, wherein: truckle (12) are installed to the downside of swing arm (11), the below of landing slab (1) is equipped with and is used for supporting bottom plate (9) of truckle (12).

4. The pneumatic bending apparatus according to claim 3, wherein: be equipped with pillar (91) on bottom plate (9), landing slab (1) with the upper end fixed connection of pillar (91).

5. The pneumatic bending apparatus according to claim 3, wherein: the platform plate (1) is formed with arc dodge hole (101), bend push rod (41) and pass arc dodge hole (101) setting.

6. The pneumatic bending apparatus according to claim 1, wherein: wedge block (7) include first swash plate (701) and second swash plate (702), the one end of first swash plate (701) with the one end of second swash plate (702) is connected as an organic whole, first swash plate (701) with second swash plate (702) forms the obtuse angle.

7. The pneumatic bending apparatus according to claim 1, wherein: the platform plate (1) is provided with a backup plate (2) which is used for the outer side of the excess material part (9900) of the steel bar workpiece (99) to lean against.

8. The pneumatic bending apparatus according to claim 7, wherein: be equipped with on landing slab (1) and be used for pushing away surplus material portion (9900) of rod iron work piece (99) paste in kicking block (6) of backup plate (2), kicking block (6) are formed with positioning slot hole (601), kicking block (6) through install in screw in positioning slot hole (601) with landing slab (1) is fixed.

9. The pneumatic bending apparatus according to claim 8, wherein: the platform plate (1) is provided with a tail end leaning seat (5) used for leaning against the tail end of the excess material part (9900) of the steel bar workpiece (99).

10. The pneumatic bending apparatus according to claim 9, wherein: the tail end leaning seat (5) is fixed on the platform plate (1) through a clamp (8).