CN110695158A

CN110695158A - Steel pipe bending equipment for dining chair

Info

Publication number: CN110695158A
Application number: CN201911028961.2A
Authority: CN
Inventors: 李强; 王俊
Original assignee: Anji Junqiang Home Furnishing Co Ltd
Current assignee: Anji Junqiang Home Furnishing Co Ltd
Priority date: 2019-10-28
Filing date: 2019-10-28
Publication date: 2020-01-17

Abstract

The invention discloses a steel pipe bending device of a dining chair, which comprises a fixed platform, wherein two groups of movable brackets are arranged on the upper surface of the fixed platform, two groups of V-shaped blocks are slidably arranged on the movable brackets, an adjusting component is fixedly arranged between the two groups of V-shaped blocks and on the upper surface of the movable brackets, a bending component is fixedly arranged on one side of the upper surface of the fixed platform, an air cylinder is arranged on one side of the bending component, the movable brackets comprise bottom plates, vertical plates are fixedly arranged on one side of the upper surface of the bottom plates, linear guide rails are fixedly arranged at the bottoms of the bottom plates, the linear guide rails are fixedly arranged on the upper surface of the fixed platform, the adjusting component comprises a motor, a first belt wheel is fixedly arranged at the output shaft end of the motor, an adjusting block is fixedly arranged at the bottoms of the V-shaped blocks, the bending die is suitable for steel pipes of different specifications, and improves the use strength of the bent steel pipes.

Description

Steel pipe bending equipment for dining chair

Technical Field

The invention belongs to the technical field of dining tables and chairs, and particularly relates to steel pipe bending equipment for a dining chair.

Background

Along with the continuous improvement of quality of life, people also more and more highly require the comfort level of dining table chair, therefore the various adjustable functions of dining table chair are in due charge, for the structural strength of strengthening adjustable dining table chair, can increase the steel pipe of a lot of different shapes in its inside or outer wall and support, and the steel pipe is bent and is common processing workshop section in industrial processing, and current steel pipe is bent, directly oppresses the piece of bending by the output power of the output of cylinder usually to accomplish bending of steel pipe.

The existing bending machine mostly has a fixed model, the adjusting range of a clamping mechanism for a steel pipe is limited, the using range of dining table and chair manufacturers cannot be completely matched, the purchasing cost of the manufacturers is increased, the output end of an air cylinder is smaller in contact area with the steel pipe when the steel pipe is pushed, the bending stress concentration can be caused when the steel pipe is bent, and the using strength of the bent steel pipe is influenced.

Therefore, the steel pipe bending equipment for the dining chair is provided for solving the problems in the prior art, four groups of V-shaped blocks are used for clamping the steel pipes, a motor is used for driving a screw rod to adjust the distance between the adjacent V-shaped blocks, the steel pipe bending equipment is suitable for the steel pipes with different lengths and diameter specifications, and the purchase cost of a manufacturer is reduced; set up a set of activity push pedal in cylinder one side, make cylinder output shaft end and push pedal bottom sliding connection, during bending, utilize push pedal and steel pipe contact, increase area of contact, stress concentration is at the contact point when avoiding the steel pipe to bend, improves the service strength after the steel pipe is bent.

Disclosure of Invention

The invention aims to provide steel pipe bending equipment for a dining chair, and the steel pipe bending equipment is used for solving the problems that in the background art, the application range of a dining table and chair manufacturer in the prior art cannot be completely matched with that of an existing bending machine, the purchase cost of the manufacturer is increased, the contact area between the output end of an air cylinder and a steel pipe is small when the steel pipe is pushed, bending stress concentration is caused when the steel pipe is bent, and the application strength of the bent steel pipe is influenced.

In order to achieve the purpose, the invention adopts the following technical scheme: a steel pipe bending device of a dining chair comprises a fixed platform, wherein two groups of movable supports are arranged on the upper surface of the fixed platform, two groups of V-shaped blocks are slidably mounted on the movable supports, an adjusting component is fixedly mounted between the two groups of V-shaped blocks and positioned on the upper surface of the movable supports, a bending component is fixedly mounted on one side of the upper surface of the fixed platform, an air cylinder is arranged on one side of the bending component, the movable supports comprise bottom plates, vertical plates are fixedly mounted on one side of the upper surface of each bottom plate, linear guide rails are fixedly mounted at the bottoms of the bottom plates, the linear guide rails are fixedly mounted on the upper surface of the fixed platform, the adjusting component comprises a motor, a first belt wheel is fixedly mounted at the output end of the motor, an adjusting block is fixedly mounted at the bottom of each V-shaped block, a screw rod is screwed in the adjusting block, a, motor fixed mounting is in the movable support upper surface, the subassembly of bending includes the bracket, the push pedal is installed to the bracket internal rotation, V type groove has been seted up in the push pedal upper surface, the cylinder pin joint is in fixed platform upper surface, push pedal one side and cylinder output shaft end sliding connection, it is a set of bottom plate one side is rotated and is installed the lead screw, another group bottom plate one side fixed mounting has the hollow tube, lead screw sliding mounting is in the hollow tube, the hollow tube is kept away from bottom plate one end and is rotated and install the third band pulley, fixed platform bottom also fixed mounting has the motor, motor output shaft end fixed mounting has first band pulley, first band pulley and third band pulley transmission are connected.

Preferably, first band pulley and second band pulley pass through synchronous belt drive and connect, set up the through-hole in the fixed platform, the hold-in range runs through in the through-hole and extends to interior fixed platform below.

Preferably, a sliding groove is formed in one side of the V-shaped block, a connecting plate is arranged in the sliding groove in a sliding mode, and one side, far away from the V-shaped block, of the connecting plate is fixedly connected with one side of the vertical plate.

Preferably, a left-handed internal thread and a right-handed internal thread are respectively arranged in the second belt wheel, a left-handed external thread and a right-handed external thread are respectively arranged at one ends of the two groups of screws, and one ends of the two groups of screws, far away from the left-handed external thread and the right-handed external thread, are fixedly arranged on one side of the vertical plate through bearing seats.

Preferably, a T-shaped groove is formed in one side of the push plate, a T-shaped sliding block is arranged in the T-shaped groove in a sliding mode, and the T-shaped sliding block is connected with the output shaft end of the air cylinder in a pin mode.

Preferably, the T-shaped groove is in clearance fit with the T-shaped sliding block, a spring is fixedly mounted on one side of the T-shaped sliding block, and one end of the spring is fixedly mounted in the T-shaped groove.

Preferably, a double-lug support is fixedly installed on one side of the upper surface of the fixed platform, an ear plate is fixedly installed at the tail of the air cylinder, and the double-lug support is in pin joint with the ear plate.

Preferably, an internal threaded hole is formed in the third belt wheel, and the screw rod is connected in the internal threaded hole in a threaded mode.

Preferably, floating rollers are symmetrically arranged in the V-shaped groove and are arranged in an equidistant array.

The invention has the technical effects and advantages that: compared with the prior art, the steel pipe bending equipment for the dining chair has the following advantages:

1. the steel pipes are clamped by the four groups of V-shaped blocks, and the distance between every two adjacent V-shaped blocks is adjusted by driving a screw rod by a motor, so that the steel pipes with different lengths and diameters are suitable, and the purchase cost of a manufacturer is reduced;

2. set up a set of activity push pedal in cylinder one side, make cylinder output shaft end and push pedal bottom sliding connection, during bending, utilize push pedal and steel pipe contact, increase area of contact, stress concentration is at the contact point when avoiding the steel pipe to bend, improves the service strength after the steel pipe is bent.

Drawings

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

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

FIG. 3 is a schematic top view of the present invention;

FIG. 4 is a side view schematic diagram of the cylinder and push plate of the present invention;

FIG. 5 is a schematic view of the structure of part A in FIG. 1 according to the present invention.

In the figure: 1. a fixed platform; 101. a through hole; 2. moving the support; 201. a base plate; 202. a vertical plate; 203. a linear guide rail; 3. a V-shaped block; 301. a chute; 302. a connecting plate; 4. an adjustment assembly; 401. a motor; 402. a first pulley; 403. an adjusting block; 404. a screw; 405. a second pulley; 406. a synchronous belt; 5. bending the assembly; 501. a towing bracket; 502. pushing the plate; 503. a V-shaped groove; 504. a T-shaped groove; 505. a T-shaped slider; 506. a spring; 6. a cylinder; 7. a screw rod; 8. a hollow tube; 9. a third belt pulley; 10. a double-lug support; 11. an ear plate; 12. a floating roll.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The invention provides a steel pipe bending device of a dining chair, which comprises a fixed platform 1, wherein two groups of movable supports 2 are arranged on the upper surface of the fixed platform 1, two groups of V-shaped blocks 3 are slidably mounted on the movable supports 2, an adjusting assembly 4 is fixedly mounted on the upper surface of the movable supports 2 between the two groups of V-shaped blocks 3, a bending assembly 5 is fixedly mounted on one side of the upper surface of the fixed platform 1, an air cylinder 6 is arranged on one side of the bending assembly 5, and the bending assembly 5 is pushed by the air cylinder 6 to bend a steel pipe; the first belt pulley 402 is in transmission connection with the second belt pulley 405 through a synchronous belt 406, a through hole 101 is formed in the fixed platform 1, the synchronous belt 406 penetrates through the through hole 101 and extends to the position below the internal fixed platform 1, a sliding groove 301 is formed in one side of the V-shaped block 3, a connecting plate 302 is installed in the sliding groove 301 in a sliding mode, one side, far away from the V-shaped block 3, of the connecting plate 302 is fixedly connected with one side of the vertical plate 202, the V-shaped block 3 is installed on one side of the vertical plate 202 in a sliding mode through the connecting plate 302, and stability of; a double-lug support 10 is fixedly installed on one side of the upper surface of the fixed platform 1, an ear plate 11 is fixedly installed at the tail of the air cylinder 6, the double-lug support 10 is in pin joint with the ear plate 11, and the air cylinder 6 is ensured not to generate structural interference in the movement process of pushing the push plate 502 by utilizing the pin joint of the double-lug support 10 and the ear plate 11;

referring to fig. 1, 2 and 3, the movable support 2 includes a bottom plate 201, a vertical plate 202 is fixedly installed on one side of the upper surface of the bottom plate 201, a linear guide 203 is fixedly installed at the bottom of the bottom plate 201, and the linear guide 203 is fixedly installed on the upper surface of the fixed platform 1;

referring to fig. 1 and 2, the adjusting assembly 4 includes a motor 401, a first pulley 402 is fixedly mounted at an output shaft end of the motor 401, an adjusting block 403 is fixedly mounted at the bottom of the V-shaped block 3, a screw 404 is screwed in the adjusting block 403, a second pulley 405 is screwed between two sets of screws 404, the second pulley 405 is in transmission connection with the first pulley 402, the motor 401 is fixedly mounted on the upper surface of the movable support 2, a left-handed internal thread and a right-handed internal thread are respectively formed in the second pulley 405, a left-handed external thread and a right-handed external thread are respectively formed at one end of each set of screws 404, and ends of the two sets of screws 404, which are far away from the left-handed external thread and the right-handed external thread, are fixedly mounted on;

referring to fig. 1 and 4, the bending assembly 5 includes a bracket 501, a push plate 502 is rotatably mounted in the bracket 501, a V-shaped groove 503 is formed in the upper surface of the push plate 502, the cylinder 6 is pinned to the upper surface of the fixed platform 1, one side of the push plate 502 is slidably connected to an output shaft end of the cylinder 6, a T-shaped groove 504 is formed in one side of the push plate 502, a T-shaped slider 505 is slidably mounted in the T-shaped groove 504, the T-shaped slider 505 is pinned to the output shaft end of the cylinder 6, the T-shaped groove 504 is in clearance fit with the T-shaped slider 505, a spring 506 is fixedly mounted on one side of the T-shaped slider 505, one end of the spring 506 is fixedly mounted in the T-shaped groove 504, floating rollers 12 are symmetrically mounted in the V-shaped groove 503.

Referring to fig. 1, 2 and 3, a screw rod 7 is rotatably installed on one side of one group of the bottom plates 201, a hollow tube 8 is fixedly installed on one side of the other group of the bottom plates 201, the screw rod 7 is slidably installed in the hollow tube 8, a third belt pulley 9 is rotatably installed at one end, far away from the bottom plate 201, of the hollow tube 8, a motor 401 is also fixedly installed at the bottom of the fixed platform 1, a first belt pulley 402 is fixedly installed at an output shaft end of the motor 401, the first belt pulley 402 is in transmission connection with the third belt pulley 9, an internal threaded hole is formed in the third belt pulley 9, and the screw rod 7 is in threaded.

The structure principle is as follows: four groups of V-shaped blocks 3 are arranged, a movable support 2 is used for supporting two adjacent groups of V-shaped blocks 3, a starting motor 401 is used for driving the V-shaped blocks to move, the distance between the V-shaped blocks is adjusted, steel pipes with different diameters can be clamped conveniently, two groups of screw rods 404 with opposite thread turning directions are arranged between two adjacent groups of V-shaped blocks 3, two groups of screw rods 404 are simultaneously rotated by a second belt pulley 405, the distance between the screw rods is adjusted, steel pipes with different lengths can be clamped conveniently, the V-shaped blocks are suitable for steel pipes with different lengths and diameter specifications;

set up a set of activity push pedal 502 in cylinder 6 one side, make cylinder 6 output shaft end and push pedal 502 bottom sliding connection, during bending, utilize push pedal 502 and steel pipe contact, increase area of contact, stress concentration is at the contact point when avoiding the steel pipe to bend, improves the use strength after the steel pipe is bent.

Finally, it should be noted that: 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 pipe return bend equipment of meal seat, includes fixed platform (1), its characterized in that: the upper surface of the fixed platform (1) is provided with two groups of movable supports (2), the movable supports (2) are provided with two groups of V-shaped blocks (3) in a sliding mode, an adjusting assembly (4) is fixedly arranged between the two groups of V-shaped blocks (3) and positioned on the upper surface of the movable supports (2), one side of the upper surface of the fixed platform (1) is fixedly provided with a bending assembly (5), and one side of the bending assembly (5) is provided with an air cylinder (6);

the movable support (2) comprises a bottom plate (201), a vertical plate (202) is fixedly mounted on one side of the upper surface of the bottom plate (201), a linear guide rail (203) is fixedly mounted at the bottom of the bottom plate (201), and the linear guide rail (203) is fixedly mounted on the upper surface of the fixed platform (1);

the adjusting assembly (4) comprises a motor (401), a first belt wheel (402) is fixedly installed at the output shaft end of the motor (401), an adjusting block (403) is fixedly installed at the bottom of the V-shaped block (3), a screw rod (404) is screwed in the adjusting block (403), a second belt wheel (405) is screwed between the two groups of screw rods (404), the second belt wheel (405) is in transmission connection with the first belt wheel (402), and the motor (401) is fixedly installed on the upper surface of the movable support (2);

the bending assembly (5) comprises a bracket (501), a push plate (502) is rotatably mounted in the bracket (501), a V-shaped groove (503) is formed in the upper surface of the push plate (502), the air cylinder (6) is in pin joint with the upper surface of the fixed platform (1), and one side of the push plate (502) is in sliding connection with the output shaft end of the air cylinder (6);

a set of bottom plate (201) one side is rotated and is installed lead screw (7), another group bottom plate (201) one side fixed mounting has hollow tube (8), lead screw (7) slidable mounting is in hollow tube (8), bottom plate (201) one end is kept away from in hollow tube (8) and is rotated and install third band pulley (9), fixed platform (1) bottom also fixed mounting has motor (401), motor (401) output shaft fixed mounting has first band pulley (402), first band pulley (402) and third band pulley (9) transmission are connected.

2. The steel tube bending device for the dining seat according to claim 1, wherein: first band pulley (402) and second band pulley (405) pass through hold-in range (406) transmission and connect, through-hole (101) have been seted up in fixed platform (1), hold-in range (406) run through in through-hole (101) and extend to interior fixed platform (1) below.

3. The steel tube bending device for the dining seat according to claim 1, wherein: a sliding groove (301) is formed in one side of the V-shaped block (3), a connecting plate (302) is arranged in the sliding groove (301) in a sliding mode, and one side, far away from the V-shaped block (3), of the connecting plate (302) is fixedly connected with one side of the vertical plate (202).

4. The steel tube bending device for the dining seat according to claim 1, wherein: levogyration internal thread and dextrorotation internal thread have been seted up respectively in second band pulley (405), and levogyration external screw thread and dextrorotation external screw thread have been seted up respectively to two sets of screw rod (404) one end, and two sets of levogyration external screw thread and dextrorotation external screw thread one end are kept away from respectively to screw rod (404) are all through bearing frame fixed mounting in riser (202) one side.

5. The steel tube bending device for the dining seat according to claim 1, wherein: t type groove (504) have been seted up to push pedal (502) one side, slidable mounting has T type slider (505) in T type groove (504), T type slider (505) and cylinder (6) output shaft end pin joint.

6. The dining seat steel pipe bending device according to claim 5, wherein: t type groove (504) and T type slider (505) clearance fit, T type slider (505) one side fixed mounting has spring (506), spring (506) one end fixed mounting is in T type groove (504).

7. The steel tube bending device for the dining seat according to claim 1, wherein: fixed platform (1) upper surface one side fixed mounting has ears support (10), cylinder (6) afterbody fixed mounting has otic placode (11), ears support (10) and otic placode (11) pin joint.

8. The steel tube bending device for the dining seat according to claim 1, wherein: an internal threaded hole is formed in the third belt wheel (9), and the screw rod (7) is connected in the internal threaded hole in a threaded mode.

9. The steel tube bending device for the dining seat according to claim 1, wherein: the V-shaped groove (503) is internally and symmetrically provided with floating rollers (12), and the floating rollers (12) are arranged in an equidistant array.