CN111702048B

CN111702048B - Clamp for re-bending welded automobile steel pipe assembly

Info

Publication number: CN111702048B
Application number: CN202010828449.2A
Authority: CN
Inventors: 曹菁; 荆君; 赵卫健
Original assignee: Shandong Transport Vocational College
Current assignee: Shandong Transport Vocational College
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-09-07
Anticipated expiration: 2040-08-18
Also published as: CN111702048A

Abstract

The invention belongs to the field of pipe bending fixtures, and particularly relates to a pipe bending fixture after welding for an automobile steel pipe assembly, which comprises a base, wherein the upper end of the base is fixedly connected with a supporting box body, the upper end of the supporting box body is fixedly connected with a straight pipe supporting block, the upper end of the straight pipe supporting block is fixedly connected with a first fixed block, the outer side of the first fixed block is fixedly connected with a supporting seat, the outer side of the supporting seat is fixedly connected with a first connecting block, the right end of the first connecting block is fixedly connected with a sleeve pipe, the connecting block is fixedly connected to the side surface of the supporting seat through a bolt, the inner side of the base is fixedly connected with a fixed plate, and the upper end of the fixed plate is provided with a second sliding groove. According to the invention, the rotating rod is arranged and matched with the first bearing and the second bearing, so that the power of the motor is transmitted to the rotating rod through the worm wheel and the worm, and the arc rotation of the bending part connected with the rotating rod is realized.

Description

Clamp for re-bending welded automobile steel pipe assembly

Technical Field

The invention belongs to the field of pipe bending clamps, and particularly relates to a post-welding pipe bending clamp for an automobile steel pipe assembly.

Background

The bending pipe is bent by adopting a complete set of bending equipment and is divided into two processes of cold bending and hot pushing. No matter which kind of machine equipment and pipeline, the elbow pipe is mostly used for oil transportation, gas transportation, liquid transportation, engineering bridge construction and the like. In the traditional bent pipe production process, enterprises can adopt a plurality of methods to obtain better bent pipe surface quality, including: adopts more advanced high-grade pipe bender, and adopts the methods of using mould with higher strength or lubricating product, etc. Enterprises usually need to invest very large funds to finish the operation by adopting a high-grade pipe bender and a high-strength die, and the product quality requirement of the enterprises can be met cheaply and quickly only by adopting a bent pipe lubricating product. However, in the conventional production process: the oil-based elbow lubricating product can meet the requirement of an enterprise on elbow quality in elbow production, but the difficult cleaning performance and the pollution to the environment of the oil-based elbow lubricating product are remarkably shown, so that the enterprise needs to adopt more means to eliminate the influence on the quality of a final product due to the oil-based elbow lubricating product, and more energy and capital are invested for the reason.

Pipe bending machines can be broadly classified into numerical control pipe bending machines, hydraulic pipe bending machines, and the like. The application of the pipe bender is as follows: the hydraulic pipe bender is mainly used for laying and repairing pipelines in the aspects of electric power construction, highway construction, boilers, bridges, ships, furniture, decoration and the like, and has the advantages of multiple functions, reasonable structure, simplicity in operation, convenience in movement, quickness in installation and the like. The numerical control pipe bender can perform winding type bending of one bending radius (single mode) or two bending radii (double modes) on a pipe in a cold state, and is widely used for bending various pipe fittings and wires in industries such as automobiles, air conditioners and the like. The outside of the material is in tension during bending, the position of the neutral axis under pressure on the inside is different from the bending method, the neutral axis is about 1/3 away from the outer wall during top bending (compression bending) operation, and the neutral axis is 2/3 away from the outer wall during rotation bending (return bending) operation. Thus, thin-walled pipes are bent, and the use of a rotary bending method is advantageous.

The slewing mechanism in traditional return bend anchor clamps is bending mechanism promptly and is at the pivoted in-process, because only be equipped with bearing structure on slewing mechanism's the left side, and the unsettled part can make the machine motion inflexible because the focus influences after rotating, and produces unfavorable effects such as harsh noise.

Therefore, we propose a clamp for bending the tube after welding of the automobile steel tube assembly to solve the above problems.

Disclosure of Invention

The invention aims to solve the problems and provides a clamp for bending a pipe after welding of an automobile steel pipe assembly.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a return bend anchor clamps after welding for car steel pipe assembly, the on-line screen storage device comprises a base, the upper end fixedly connected with supporting box of base, the upper end fixedly connected with straight tube supporting shoe of supporting box, the first fixed block of upper end fixedly connected with of straight tube supporting shoe, the outside fixedly connected with supporting seat of first fixed block, the first link block of outside fixedly connected with of supporting seat, the right-hand member fixedly connected with sleeve pipe of first link block, the connecting block passes through bolt fixed connection in the side of supporting seat, the inboard fixedly connected with fixed plate of base, open the upper end of fixed plate has the second spout.

In foretell a welding back return bend anchor clamps for car steel pipe assembly, fixed surface is connected with the second fixed block on the inside of supporting box, the upper end fixedly connected with motor of second fixed block, the left end of motor is rotated and is connected with the worm, the left end perforation connection of worm has the protective housing, the worm rotates and is connected with the worm wheel, the middle part perforation connection of worm wheel has the dwang, the first bearing of bottom fixedly connected with of dwang, the lower extreme fixed connection of first bearing is in the bottom surface of protective housing, the bottom fixed connection of protective housing is in the bottom surface of supporting box.

In foretell a welding back return bend anchor clamps for car steel pipe assembly, the upper end perforation connection protective housing of dwang, the upper end perforation connection support box of protective housing, the top fixedly connected with second bearing seat of protective housing, dwang perforation connection second bearing seat, the top fixedly connected with elbow piece of dwang, the first fixing base of the junction outside fixedly connected with of dwang and elbow piece.

In foretell a return bend anchor clamps after welding for car steel pipe assembly, return bend spare includes first return bend piece and second return bend piece, first return bend piece fixed connection is in the side of second return bend piece, the centre of a circle intersection fixedly connected with third fixed block of first return bend piece and second return bend piece, the short connecting rod of upper end fixedly connected with of third fixed block, the long connecting rod of right-hand member fixedly connected with of short connecting rod, the lower extreme fixedly connected with support frame of short connecting rod.

In foretell a welding back return bend anchor clamps for car steel pipe assembly, the lower extreme fixedly connected with second connecting block of support frame, the first elbow piece of left side upper end fixed connection of second connecting block, open the upper end of second connecting block has first spout, the right-hand member perforated connection of support frame has the cylinder, the left end fixedly connected with compact heap of cylinder, the lower extreme fixedly connected with slider of compact heap, the lower extreme embedding of slider is connected with first pulley, the first spout of first pulley sliding connection.

In foretell a welding back return bend anchor clamps for car steel pipe assembly, the lower extreme fixedly connected with second fixing base of second connecting block, the lower extreme fixedly connected with straight-bar of second fixing base, the lower extreme embedding of straight-bar is connected with the second pulley, second pulley sliding connection second spout.

In the above clamp for bending the welded automobile steel pipe assembly, the upper end of the supporting box body is fixedly connected with a control console.

Compared with the prior art, the invention has the advantages that:

1. according to the invention, the second connecting block is arranged to support and connect the elbow pipe fitting, the pressing block and the cylinder, so that the elbow pipe fitting, the pressing block and the cylinder can be tightly attached to the steel pipe when the motor drives the elbow pipe fitting to do arc motion, and the steel pipe is prevented from falling.

2. According to the invention, the first sliding groove is arranged, and the function of the pressing block is to be matched with the bent pipe fitting to press the steel pipe to be bent, so that the function of moving the pressing block needs to be realized, and the sliding groove is arranged, so that the pulley below the pressing block can slide under the pushing of the cylinder to realize the function of pressing the steel pipe.

3. According to the invention, the straight rod is arranged, and the right end of the second connecting block has large mass, so that the straight rod can be clamped and accompanied with noise when the straight rod is driven by the motor to do arc motion for a long time, and the structure can flexibly move by the sliding of the second pulley at the bottom end of the straight rod in the second sliding groove.

4. The steel pipe fixing device has the advantages that the sleeve is arranged and matched with the straight pipe supporting block, so that the steel pipe slides in the sleeve, the fixing effect on the steel pipe which is not bent is realized, the working efficiency of the device is increased, time and labor are saved, and the device is worthy of popularization.

5. According to the invention, the rotating rod is arranged and matched with the first bearing and the second bearing, so that the power of the motor is transmitted to the rotating rod through the worm wheel and the worm, and the arc rotation of the bending part connected with the rotating rod is realized.

Drawings

FIG. 1 is a schematic structural diagram of a clamp for re-bending a welded pipe of an automobile steel pipe assembly according to the present invention;

FIG. 2 is a top view of a post-weld re-pipe clamp for an automotive steel pipe assembly according to the present invention;

FIG. 3 is a view showing a structure of part A of FIG. 1;

FIG. 4 is a view showing a structure of a portion B of FIG. 1;

fig. 5 is a structural view of part C of fig. 2.

In the figure, 1 a base, 2 a supporting box body, 21 a second fixed block, 22 a motor, 23 a worm, 24 a protective shell, 25 a worm wheel, 26 a rotating rod, 27 a first bearing seat, 28 a second bearing seat, 3 a straight pipe supporting block, 31 a first fixed block, 32 a supporting seat, 33 a first connecting block, 34 a sleeve, 35 a bolt, 4 a bent pipe part, 41 a first bent pipe block, 42 a second bent pipe block, 43 a third fixed block, 44 a short connecting rod, 45 a long connecting rod, 46 a supporting frame, 47 a first fixed seat, 5 a cylinder, 51 a pressing block, 52 a sliding block, 53 a first pulley, 6 a second connecting block, 61 a first sliding groove, 7 a second fixed seat, 71 a straight rod, 72 a second pulley, 8 a fixed plate, 81 a second sliding groove and 9 a control console.

Detailed Description

The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1-5, a re-pipe bending fixture for a welded automobile steel pipe assembly comprises a base 1, two bases 1, a supporting box 2 fixedly connected to the upper end of the base 1, a console 9 fixedly connected to the upper end of the supporting box 2, a second fixing block 21 fixedly connected to the inner upper surface of the supporting box 2, a motor 22 fixedly connected to the upper end of the second fixing block 21, the motor having a model of Y-600, a worm 23 rotatably connected to the left end of the motor 22, a protective shell 24 connected to the left end of the worm 23, a worm wheel 25 rotatably connected to the worm 23, a rotating rod 26 connected to the middle of the worm wheel 25, a protective shell 24 connected to the upper end of the rotating rod 26, a supporting box 2 connected to the upper end of the protective shell 24, a second bearing block 28 fixedly connected to the top end of the protective shell 24, and a second bearing block 28 connected to the rotating rod 26, the top end fixedly connected with elbow fitting 4 of dwang 26, the first fixing base 47 of the junction outside fixedly connected with of dwang 26 and elbow fitting 4.

According to the invention, the pipe bending part 4 comprises a first pipe bending block 41 and a second pipe bending block 42, the side surfaces of the first pipe bending block 41 and the second pipe bending block 42 are both concave structures, the first pipe bending block 41 is fixedly connected to the side surface of the second pipe bending block 42, the first pipe bending block 41 is of a semicircular structure, the second pipe bending block 42 is of a square structure, a third fixing block 43 is fixedly connected to the intersection point of the circle centers of the first pipe bending block 41 and the second pipe bending block 42, the third fixing block 43 is of a disc shape, the upper end of the third fixing block 43 is fixedly connected with a short connecting rod 44, the upper end of the short connecting rod 44 is provided with a limiting structure, the right end of the short connecting rod 44 is fixedly connected with a long connecting rod 45, the lower end of the short connecting rod 44 is fixedly connected with a supporting frame 46, and the supporting frame 46 is of an L-shaped structure.

According to the invention, the lower end of a support frame 46 is fixedly connected with a second connecting block 6, the lower end of the second connecting block 6 is fixedly connected with a second fixed seat 7, the lower end of the second fixed seat 7 is fixedly connected with a straight rod 71, the lower end of the straight rod 71 is connected with a second pulley 72 in an embedded manner, the second pulley 72 is connected with a second chute 81 in a sliding manner, the upper end of the left side of the second connecting block 6 is fixedly connected with a first bent pipe block 41, the upper end of the second connecting block 6 is provided with a first chute 61, the right end of the support frame 46 is connected with an air cylinder 5 in a perforated manner, the type of the air cylinder 5 is a QGB series, the left end of the air cylinder 5 is fixedly connected with a pressing block 51, the left side of the pressing block 51 is of a concave structure, the lower end of the pressing block 51 is fixedly connected with a sliding block 52, the lower end of the sliding block 52 is connected with a first pulley 53 in an embedded manner, and the first pulley 53 is connected with the first chute 61 in a sliding manner.

In the present invention, the bottom end of the rotating rod 26 is fixedly connected with the first bearing seat 27, the lower end of the first bearing seat 27 is fixedly connected to the bottom surface of the protective shell 24, and the bottom end of the protective shell 24 is fixedly connected to the bottom surface of the supporting box 2.

According to the invention, the upper end of the supporting box body 2 is fixedly connected with the straight pipe supporting block 3, the surface of the straight pipe supporting block 3 is provided with a concave groove, the upper end of the straight pipe supporting block 3 is fixedly connected with the first fixing block 31, the outer side of the first fixing block 31 is fixedly connected with the supporting seat 32, the outer side of the supporting seat 32 is fixedly connected with the first connecting block 33, the right end of the first connecting block 33 is fixedly connected with the sleeve 34, the diameter of the sleeve 34 is larger than that of a steel pipe, the connecting block 33 is fixedly connected to the side surface of the supporting seat 32 through the bolt 35, the inner side of the base 1 is fixedly connected with the fixing plate 8, the upper end of the fixing plate 8 is provided with the second sliding groove 81, and the second sliding groove 81 is an arc-shaped groove.

When the invention is used, a power supply is turned on, the opening and closing state of the motor 22 is controlled through the control console 9, when the motor 22 is turned on, the motor 22 transmits power to the worm wheel 25 engaged with the worm through the worm 23, the bottom end of the rotating rod 26 connected to the middle part of the worm wheel 25 through a perforation can ensure that the rotation of the rotating rod 26 is not influenced through the first bearing 27 fixed on the supporting box body 2, the outer part of the rotating rod is provided with the protective shell 24 for protecting the transmission mechanism, the top end of the protective shell 24 is also provided with the second bearing 28 which is matched with the first bearing 27 to ensure the rotation of the rotating rod 26, the power is transmitted to the bent pipe fitting 4 through the rotating rod 28, the bent pipe fitting 4 is matched with the pressing block 51 to press the steel pipe and then rotates to bend the steel pipe, wherein the short connecting rod 44 and the long connecting rod 45 at the upper ends of the bent pipe fitting 4 and the supporting frame 46 fixedly connect the bent pipe fitting 4 and the supporting frame 46, in addition, the second connecting block 6 also plays a role in supporting the bent pipe fitting 4, the pressing block 51 and the cylinder 5, the cylinder 5 drives the pressing block 51 to move left and right to realize the actions of pressing and releasing, the pressing block 51 is pushed by the cylinder 5 and the pulley 53, the pulley 53 passively slides in the first sliding groove 61, the straight rod 71 slides in the second sliding groove 81 in the rotating process of the bent pipe fitting 4 and the pressing block 51, wherein the sliding of the straight rod 71 depends on the second pulley 72 fixedly connected with the bottom end, the sliding of the straight rod 71 plays a role in supporting the whole rotating mechanism, the straight pipe supporting block 3 plays a role in utilizing a concave groove on the surface thereof to enable the steel pipe to be more attached to the straight pipe supporting block 3 and not to be deflected, the first connecting block 33 and the sleeve 34 play a role in limiting the moving steel pipe, when the steel pipe passes through the bent pipe fitting 4 and the pressing block 51, after the pressing block 51 is pushed by the cylinder to press the steel pipe, the power supply of the motor 22 is started through the console 9, the steel pipe deflects along with the rotation of the elbow pipe piece 4 and the pressing block 51 to obtain the expected elbow pipe, and after the elbow pipe is manufactured, the power supply of the console 9 is turned off, namely the power supply of the whole device is turned off.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The clamp for re-bending the welded automobile steel pipe assembly comprises a base (1) and is characterized in that the upper end of the base (1) is fixedly connected with a supporting box body (2), the upper end of the supporting box body (2) is fixedly connected with a straight pipe supporting block (3), the upper end of the straight pipe supporting block (3) is fixedly connected with a first fixing block (31), and the outer side of the first fixing block (31) is fixedly connected with a supporting seat (32);

a first connecting block (33) is fixedly connected to the outer side of the supporting seat (32), a sleeve (34) is fixedly connected to the right end of the first connecting block (33), the connecting block (33) is fixedly connected to the side face of the supporting seat (32) through a bolt (35), and the sleeve (34) is matched with the straight pipe supporting block (3), so that a steel pipe slides in the sleeve and can be fixed to the steel pipe which is not bent;

a fixed plate (8) is fixedly connected with the inner side of the base (1), a second sliding chute (81) is arranged at the upper end of the fixed plate (8), the upper surface of the interior of the supporting box body (2) is fixedly connected with a second fixed block (21), the upper end of the second fixed block (21) is fixedly connected with a motor (22), the left end of the motor (22) is rotatably connected with a worm (23), the left end of the worm (23) is connected with a protective shell (24) in a perforation way, the worm (23) is rotationally connected with a worm wheel (25), a rotating rod (26) is connected with a through hole in the middle of the worm wheel (25), a first bearing seat (27) is fixedly connected with the bottom end of the rotating rod (26), the lower end of the first bearing seat (27) is fixedly connected with the bottom surface of the protective shell (24), the bottom end of the protective shell (24) is fixedly connected to the bottom surface of the supporting box body (2); the upper end of the rotating rod (26) is connected with a protective shell (24) in a penetrating manner, the upper end of the protective shell (24) is connected with a supporting box body (2) in a penetrating manner, a second bearing seat (28) is fixedly connected to the top end of the protective shell (24), the rotating rod (26) is connected with the second bearing seat (28) in a penetrating manner, a bent pipe fitting (4) is fixedly connected to the top end of the rotating rod (26), and a first fixing seat (47) is fixedly connected to the outer side of the connection position of the rotating rod (26) and the bent pipe fitting (4);

the bent pipe fitting (4) comprises a first bent pipe block (41) and a second bent pipe block (42), the first bent pipe block (41) is fixedly connected to the side face of the second bent pipe block (42), a third fixed block (43) is fixedly connected to the intersection point of the circle centers of the first bent pipe block (41) and the second bent pipe block (42), the upper end of the third fixed block (43) is fixedly connected with a short connecting rod (44), the right end of the short connecting rod (44) is fixedly connected with a long connecting rod (45), and the lower end of the short connecting rod (44) is fixedly connected with a support frame (46); the lower end of the supporting frame (46) is fixedly connected with a second connecting block (6), the upper end of the left side of the second connecting block (6) is fixedly connected with a first bent pipe block (41), the upper end of the second connecting block (6) is provided with a first sliding groove (61), the right end of the supporting frame (46) is connected with an air cylinder (5) in a perforation way, the left end of the air cylinder (5) is fixedly connected with a pressing block (51), the lower end of the pressing block (51) is fixedly connected with a sliding block (52), the lower end of the sliding block (52) is connected with a first pulley (53) in an embedded way, and the first pulley (53) is connected with the first sliding groove (61) in a sliding way; the lower end of the second connecting block (6) is fixedly connected with a second fixed seat (7), the lower end of the second fixed seat (7) is fixedly connected with a straight rod (71), a second pulley (72) is embedded and connected to the lower end of the straight rod (71), and the second pulley (72) is connected with a second sliding groove (81) in a sliding manner; the upper end of the supporting box body (2) is fixedly connected with a control console (9).