CN211135079U

CN211135079U - Round-bending and forming integrated die for steel chair

Info

Publication number: CN211135079U
Application number: CN201922073795.XU
Authority: CN
Inventors: 韩海明; 马春元
Original assignee: Zhangzhou Xinhai Arts & Crafts Furniture Co ltd
Current assignee: Zhangzhou Xinhai Arts & Crafts Furniture Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-07-31
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a steel chair is with curved circle shaping integration mould, including workstation, backup pad and curved circle mould, the perpendicular to surface welded connection of workstation has two backup pads, and the hub connection has curved circle mould between two backup pads to the top welded connection of two backup pads has the diaphragm, seted up first curved circular slot on the outer circular wall of the first half of curved circle mould, and seted up second curved circular slot on the outer circular wall of the latter half of curved circle mould to the round pin shaft hole that aligns each other is seted up to curved circle mould and backup pad, the fixed pin has been inserted in the pin shaft hole, the bolt fastening has the pneumatic cylinder on the diaphragm. This steel pipe chair is with curved circle shaping integration mould is provided with curved circular mould, and it is discoid to seted up first curved circular slot and second curved circular slot on it, first curved circular slot and second curved circular slot can be located square pipe and pipe respectively and carry out the curved circle operation, ensure that steel pipe curved circle back can not take place deformation.

Description

Round-bending and forming integrated die for steel chair

Technical Field

The utility model relates to a steel pipe chair processing technology field specifically is a steel pipe chair is with curved circle shaping integration mould.

Background

The steel tube chair is a chair formed by steel tubes, the steel tubes are mostly hollow square tubes or round tubes, and when the steel tubes are processed, if the steel tubes are made into armrests, the steel tubes need to be bent;

when the existing rounding equipment rounds a steel pipe, the rounding part of the steel pipe is easy to wrinkle, crack and other defects, so that the surface of the steel pipe is not smooth enough, the quality of a product formed by bending the pipe cannot be ensured, and the practicability is not strong;

in order to solve the above problems, innovative design based on the original elbow forming device is urgently needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a round shaping integration mould is used to steel chair to current round equipment that bends that solution above-mentioned background art provided when the round to the steel pipe, the round department of bending of steel pipe appears wrinkling easily and defect such as curved crack, makes the steel pipe surface smooth inadequately, can not ensure the quality of the product after the return bend shaping, problem that the practicality is not strong.

In order to achieve the above object, the utility model provides a following technical scheme: a round bending and forming integrated die for a steel pipe chair comprises a workbench, support plates and a round bending die, wherein the surface of the workbench is vertically welded and connected with the two support plates, the round bending die is connected between the two support plates in a shaft mode, the top ends of the two support plates are welded and connected with a transverse plate, a first round bending groove is formed in the outer circular wall of the upper half portion of the round bending die, a second round bending groove is formed in the outer circular wall of the lower half portion of the round bending die, pin shaft holes which are aligned with each other are formed in the round bending die and the support plates, fixing pins are inserted into the pin shaft holes, a hydraulic cylinder is fixed on the transverse plate through bolts, a lifting plate is connected to the end of a piston rod of the hydraulic cylinder through a welding machine, connecting rods are vertically welded and connected to the bottom end surfaces of the two sides of the lifting plate, connecting sleeves are hinged and connected to the bottom ends of the, equal welded connection has the fixed plate on first curved round bar and the curved round bar of second, and is provided with rubber sleeve between first curved round bar and the curved round bar of second, the curved round bar of second extends to in the screw sleeve, and the curved round bar one end of second that is located screw sleeve is fixed to bond has the threaded rod, the screw hole that closes rather than the screw thread soon is seted up to the one end of threaded rod to first curved round bar face, rubber sleeve's both ends are fixed respectively to bond has first solid fixed ring and the solid fixed ring of second to the rubber sleeve intussuseption is filled with grains of sand, first solid fixed ring laminates with first curved round bar mutually to the solid fixed ring's of second interior circle closes with screw sleeve outer wall screw thread soon and is connected, the threaded rod passes and extends to in the screw hole from screw sleeve.

Furthermore, the sections of the first curved circular groove and the second curved circular groove are respectively in an L shape and a semi-circular arc shape, and the arc length of the first curved circular groove and the arc length of the second curved circular groove are both 180 degrees.

Furthermore, the connecting sleeve is a hollow cylindrical structure with two open ends, the outer diameter of the connecting sleeve is smaller than the diameter of the fixing plate, and the inner diameter of the connecting sleeve is larger than the diameters of the first curved round rod and the second curved round rod.

Furthermore, first solid fixed ring and the solid fixed ring of second all are the ring form, and the interior circle footpath length of first solid fixed ring is unanimous with the diameter of screw rod.

Furthermore, the threaded sleeve is of a hollow cylindrical structure with one open end, and the inner wall of the threaded sleeve is connected with the second curved round rod in a threaded screwing mode.

Compared with the prior art, the beneficial effects of the utility model are that: the round bending and forming integrated die for the steel pipe chair is provided with a round bending die which is disc-shaped and is provided with a first round bending groove and a second round bending groove, and the first round bending groove and the second round bending groove can be respectively positioned on a square pipe and a round pipe for round bending operation, so that the steel pipe is ensured not to deform after being round bent;

be provided with first curved round bar and the curved round bar of second, and set up the rubber sleeve that the packing has the grains of sand between the two, when carrying out the curved circle to the steel pipe like this, can insert inside the steel pipe first curved round bar and the curved round bar of second, and make rubber sleeve be located the curved round department of steel pipe, when first curved round bar takes place to be crooked with the curved round bar of second like this, can drive the synchronous bending of steel pipe through rubber sleeve, the curved round department of steel pipe does not rubber sleeve support like this, can not take place to corrugate and the defect of curved crack, the finished product quality after the curved round shaping has been guaranteed, therefore, the clothes hanger is strong in practicability.

Drawings

FIG. 1 is a schematic view of the overall front view structure of the present invention;

FIG. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of the connection structure of the first curved round bar, the second curved round bar and the rubber sleeve of the present invention;

fig. 4 is a front view of the first curved round bar, the second curved round bar and the rubber sleeve of the present invention.

In the figure: 1. the workstation, 2, the backup pad, 3, curved circular mould, 4, first curved circular slot, 5, the curved circular slot of second, 6, round pin axle hole, 7, the fixed pin, 8, diaphragm, 9, the pneumatic cylinder, 10, the lifter plate, 11, the connecting rod, 12, the connecting sleeve, 13, first curved round bar, 14, the curved round bar of second, 15, the fixed plate, 16, rubber sleeve, 17, first solid fixed ring, 18, the solid fixed ring of second, 19, threaded sleeve 20, the threaded rod, 21, the screw hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a rounding and forming integrated die for a steel chair comprises a workbench 1, support plates 2 and rounding dies 3, wherein the surface of the workbench 1 is vertically welded and connected with the two support plates 2, the rounding dies 3 are connected between the two support plates 2 in a shaft mode, the top ends of the two support plates 2 are welded and connected with a transverse plate 8, a first rounding groove 4 is formed in the outer circular wall of the upper half portion of the rounding die 3, a second rounding groove 5 is formed in the outer circular wall of the lower half portion of the rounding die 3, pin shaft holes 6 which are aligned with each other are formed in the rounding dies 3 and the support plates 2, fixing pins 7 are inserted into the pin shaft holes 6, hydraulic cylinders 9 are fixed on the transverse plates 8 through bolts, lifting plates 10 are connected to the piston rod ends of the hydraulic cylinders 9 through a welding machine, connecting rods 11 are vertically welded and connected to the bottom end surfaces of the two sides of the lifting plates 10, connecting sleeves 12 are hinged and connected with connecting sleeves 11, first rounding rods 13 and second rounding rods 14 penetrate through the two connecting sleeves, the first curved round rod 13 and the second curved round rod 14 are connected with a fixing plate 15 in a welding manner, a rubber sleeve 16 is arranged between the first curved round rod 13 and the second curved round rod 14, the second curved round rod 14 extends into a threaded sleeve 19, one end of the second curved round rod 14 positioned in the threaded sleeve 19 is fixedly bonded with a threaded rod 20, one end of the first curved round rod 13 facing the threaded rod 20 is provided with a threaded hole 21 screwed with the threaded rod, two ends of the rubber sleeve 16 are respectively fixedly bonded with a first fixing ring 17 and a second fixing ring 18, the rubber sleeve 16 is filled with sand grains, the first fixing ring 17 is attached to the first curved round rod 13, the inner circle of the second fixing ring 18 is connected with the outer wall of the threaded sleeve 19 in a threaded manner, the threaded rod 20 penetrates through the threaded sleeve 19 and extends into the threaded hole 21, the curved round die 3 is disc-shaped and can freely rotate in the two supporting plates 2, when the first curved circular groove 4 and the second curved circular groove 5 need to be switched, the fixing pin 7 is pulled out, when the fixing pin needs to be fixed, the fixing pin 7 is inserted into the pin shaft hole 6 again, the threaded rod 20 is a rubber rod, and when the rubber sleeve 16 is bent, the rubber rod can be synchronously bent.

Further, the section of first curved circular slot 4 and second curved circular slot 5 is "L" form and semicircle arcuation respectively, and the arc length between them is 180, and first curved circular slot 4 and second curved circular slot 5 can be located square pipe and pipe respectively like this and carry out the operation of making a round, and application scope is big, and the arc length design of first curved circular slot 4 and second curved circular slot 5 makes both have suitable length, makes the steel pipe can carry out the operation of making a round.

Further, connecting sleeve 12 is the hollow cylinder structure that both ends are the opening form, and the external diameter of connecting sleeve 12 is less than the diameter of fixed plate 15, and the internal diameter of connecting sleeve 12 is greater than the diameter of first curved pole 13 and the curved pole 14 of second, insert first curved pole 13 and the curved pole 14 of second to the steel pipe when inside like this, make both pass from connecting sleeve 12 earlier, connecting sleeve 12 cooperation fixed plate 15 simultaneously, when making connecting rod 11 descend, can drive first curved pole 13 and the curved pole 14 of second downwards rotation through connecting sleeve 12, and then first curved pole 13 and the curved pole 14 of second can drive rubber sleeve 16 between the two and take place the bending, thereby can carry out the operation of curving to the steel pipe.

Furthermore, the first fixing ring 17 and the second fixing ring 18 are both in a ring shape, the inner diameter of the first fixing ring 17 is consistent with the diameter of the threaded rod 20, a detachable structure is arranged between the second fixing ring 18 and the threaded sleeve 19, when the fixing device is installed, the second fixing ring 18 and the threaded sleeve 19 are screwed to connect, so that the first fixing ring 17 is attached to the first curved round bar 13, the first curved round rod 13, the second curved round rod 14 and the rubber sleeve 16 can be connected by rotating the second curved round rod 14 to enable the threaded rod 20 to penetrate into the rubber sleeve 16 and finally screwing the threaded rod into the threaded hole 21, the rubber sleeve 16 is integrally of a detachable installation structure, later maintenance of people is facilitated, the first fixing ring 17 is made of magnetic materials, the first curved round bar 13 is mutually adsorbed with the metal, so that the first curved round bar and the metal are tightly attached, and sand grains in the rubber sleeve 16 are prevented from leaking.

Furthermore, the threaded sleeve 19 is a hollow cylindrical structure with an open end, the inner wall of the threaded sleeve 19 is connected with the second round bar 14 in a threaded screwing manner, after the threaded sleeve 19 is screwed with the second fixing ring 18, the second round bar 14 can be rotated by the threaded sleeve 19, so that the second round bar 14 can move along the axis of the threaded sleeve 19, the threaded rod 20 can be screwed into the threaded hole 21, the first round bar 13, the second round bar 14 and the rubber sleeve 16 can be combined into a whole, the length of the rubber sleeve 16 can be adjusted by adjusting the distance between the first round bar 13 and the second round bar 14, and the shorter the length of the rubber sleeve 16, the larger the diameter of the rubber sleeve 16 is, and the rubber sleeve can be fully attached to the inner wall of the steel pipe.

The working principle is as follows: when the steel pipe is used, the steel pipe is inserted into the first curved circular groove 4 or the second curved circular groove 5, sand grains are filled in the rubber sleeve 16, the first curved circular rod 13 and the second curved circular rod 14 are combined, and the combined whole is inserted into the steel pipe;

connect into external power with pneumatic cylinder 9, pneumatic cylinder 9 drives lifter plate 10 and moves down perpendicularly, lifter plate 10 drives connecting rod 11 and moves down, connecting sleeve 12 removes and drives first curved round bar 13 and the curved round bar 14 of second rotatoryly downwards along with it, connecting sleeve 12 can rotate along with the rotation of first curved round bar 13 and the curved round bar 14 of second in step, and then with rubber sleeve 16, the whole that first curved round bar 13 and the curved round bar 14 of second combined is crooked, cooperate curved round mould 3 like this, can carry out the operation of rounding to the steel pipe.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a steel chair is with curved circle shaping integration mould, includes workstation (1), backup pad (2) and curved circle mould (3), its characterized in that: the surface of the workbench (1) is vertically welded with two supporting plates (2), a round bending die (3) is connected between the two supporting plates (2) in a shaft mode, a transverse plate (8) is welded at the top ends of the two supporting plates (2), a first round bending groove (4) is formed in the outer circular wall of the upper half portion of the round bending die (3), a second round bending groove (5) is formed in the outer circular wall of the lower half portion of the round bending die (3), pin shaft holes (6) which are aligned with each other are formed in the round bending die (3) and the supporting plates (2), a fixing pin (7) is inserted into each pin shaft hole (6), a hydraulic cylinder (9) is fixed on each transverse plate (8) through a bolt, a lifting plate (10) is connected to a piston rod end welding machine of the hydraulic cylinder (9), connecting rods (11) are vertically welded to the bottom surfaces of the two sides of the lifting plate (10), and connecting sleeves (12) are hinged to, and a first round bar (13) and a second round bar (14) penetrate through the two connecting sleeves (12) respectively, a fixing plate (15) is welded on the first round bar (13) and the second round bar (14), a rubber sleeve (16) is arranged between the first round bar (13) and the second round bar (14), the second round bar (14) extends into a threaded sleeve (19), a threaded rod (20) is fixedly bonded at one end of the second round bar (14) positioned in the threaded sleeve (19), a threaded hole (21) screwed with the threaded rod (20) is formed in one end of the first round bar (13) facing the threaded rod (20), a first fixing ring (17) and a second fixing ring (18) are fixedly bonded at two ends of the rubber sleeve (16) respectively, sand grains are filled in the rubber sleeve (16), the first fixing ring (17) is attached to the first round bar (13), and the inner circle of the second fixing ring (18) is in threaded connection with the outer wall of the threaded sleeve (19), and the threaded rod (20) penetrates through the threaded sleeve (19) and extends into the threaded hole (21).

2. The round bending and forming integrated die for the steel tube chair as claimed in claim 1, wherein the cross sections of the first round bending groove (4) and the second round bending groove (5) are L-shaped and semi-arc-shaped respectively, and the arc lengths of the first round bending groove and the second round bending groove are both 180 degrees.

3. The round-bending and forming integrated die for the steel chair according to claim 1, wherein: the connecting sleeve (12) is of a hollow cylindrical structure with two open ends, the outer diameter of the connecting sleeve (12) is smaller than the diameter of the fixing plate (15), and the inner diameter of the connecting sleeve (12) is larger than the diameters of the first round bending rod (13) and the second round bending rod (14).

4. The round-bending and forming integrated die for the steel chair according to claim 1, wherein: the first fixing ring (17) and the second fixing ring (18) are both annular, and the inner circle diameter of the first fixing ring (17) is the same as the diameter of the threaded rod (20).

5. The round-bending and forming integrated die for the steel chair according to claim 1, wherein: the threaded sleeve (19) is of a hollow cylindrical structure with one open end, and the inner wall of the threaded sleeve (19) is in threaded screwing connection with the second round bending rod (14).