CN208556406U - A kind of hardware elbow pipe welding machine - Google Patents

Abstract

The utility model relates to pipeline welding technology fields, and disclose a kind of hardware elbow pipe welding machine, including pedestal, mounting post is fixedly installed at the top of the pedestal, the quantity of the mounting post is two, central symmetry of two mounting posts about pedestal, the fixed bin being fixedly installed in the middle part of the pedestal top between two mounting posts, the inside of the fixed bin is fixedly installed with dual-axle motor, the output shaft of the dual-axle motor is fixedly installed with rotation axis respectively, two rotation axis extend through fixed bin and mounting post and extend to the outside of mounting post side.The hardware elbow pipe welding machine, it is rotated by the work belt turn moving axis of dual-axle motor, make rotating bar and motion bar that the second bend pipe and the first bend pipe be driven to rotate at the same speed in the same direction using the cooperation between turning set and connecting band and passive set and side set, the first bend pipe and the second bend pipe contact position are welded using welding rifle, ensure that the uniformity of welding.

Description

A kind of hardware elbow pipe welding machine

Technical field

The present invention relates to pipeline welding technology field, specially a kind of hardware elbow pipe welding machine.

Background technique

Bend pipe is each widely applied important spare part in field of industry, hardware bend pipe petroleum, chemical industry, navigation, aviation and Nuclear industry field has important use, acquires a special sense in high temperature, high pressure and acid and alkali corrosion environment.It is needed in some places The hardware bend pipe for using different length is needed both ends or multistage elbow pipe welding with bonding machine together this when.

The invention of existing application number CN201420487305.5 provides a kind of pipeline automatic welding connection device, including welding is put down Platform, fixed block, fixed ring, sliding screw, rotary electric machine, slide rail, moving guide rail, mobile stepper motor, moving rail, sliding Stepper motor, telescopic rod, welding gun and torch head, the welding platform upper end are equipped with fixed block, and fixed block is equipped with consolidating for semicircle Determine ring, welding gun clamping bar front end is equipped with welding gun, and a kind of pipeline automatic welding connection device reaches pipeline automatic welding by control motor It connects, saves manpower, accomplish safe welding, reduce weld job to the harm of the eyes and respiratory tract of worker, rotary electric machine energy Welding gun is set to do 360 degree rotation welding, flexibly, welding stability can be high for welding, effectively increases the quality of welding, keeps pipeline positive and negative Face is smooth, reaches performance indicator, this automatic welding of pipelines apparatus structure is stablized, easy to operate, vdiverse in function, not straight by pipeline Diameter limitation, can complete the welding of pipeline very well.

Although the invention solves the problems, such as, but need to solve there are still following problems when in use:

1. the invention is not adapted to obtain limiting device with bend pipe, it cannot be guaranteed that bend pipe weldering during elbow pipe welding What is connect is uniform, influences welding quality.

2. the device that the invention does not buffer bend pipe, during welding to bend pipe, vibration be will affect The progress of welding, reduces the quality of welding.

3. the device that the invention is not adjusted welding rifle, during the welding process can not be according to the diameter of bend pipe It adjusts position of the welding rifle apart from bend pipe, influences welding efficiency.

Then, I adheres to that the relevant industries are abundant for many years designs and develops and the experience of actual fabrication, for existing Structure and missing are studied improvement, are provided a kind of ear-nose-throat department operation ancillary equipment, are more invented to reach to have more The purpose of value.

Summary of the invention

(1) the technical issues of solving

In view of the deficiencies of the prior art, the present invention provides a kind of hardware elbow pipe welding machine, have welding uniformly, welded Cheng Wending and the advantages that facilitate the position for adjusting welding rifle, solves existing bonding machine and is not adapted with bend pipe and limited Device cannot be guaranteed the uniform of elbow pipe welding during elbow pipe welding, influence welding quality；And bend pipe is not carried out The device of buffering, during welding to bend pipe, vibration will affect the progress of welding, reduce the quality of welding；And do not have There is the device that welding rifle is adjusted, welding rifle can not be adjusted according to the diameter of bend pipe during the welding process apart from curved The position of pipe, the problem of influencing welding efficiency.

(2) technical solution

Purpose for the position realized that above-mentioned welding is uniform, welding process is stable and adjusting is facilitated to weld rifle, the present invention mention For following technical solution: a kind of hardware elbow pipe welding machine, including pedestal are fixedly installed with mounting post at the top of the pedestal, institute The quantity for stating mounting post is two, and central symmetry of two mounting posts about pedestal, the middle part on the pedestal top is fixed The fixed bin being located between two mounting posts is installed, the inside of the fixed bin is fixedly installed with dual-axle motor, the twin shaft The output shaft of motor is fixedly installed with rotation axis respectively, and two rotation axis extend through fixed bin and mounting post and extend To the outside of mounting post side, fixing sleeve is connected to turning set, two institutes respectively for two one end of the rotation axis far from mounting post Stating the inside of mounting post, pivot bush unit has a rotating bar and motion bar respectively, and the both ends of the rotating bar and motion bar extend through peace Dress column and the outside for extending to mounting post, fixing sleeve is connected to passively respectively for the one end of the rotating bar and motion bar far from mounting post Set and side set, the turning set are sequentially connected with passive set and side set respectively by connecting band, and the other end of the rotating bar is solid Surely it is connected with side plate, the other side of the side plate is fixedly installed with connecting rod, and the quantity of the connecting rod is two, described in two Central symmetry of the connecting rod about side plate, the other end of two connecting rods are fixedly connected to fixed block, the fixed block Inner wall is connected with the second bend pipe, and the outside movable sleeve of the fixed block is connected to pull rod, and one end of the pull rod is through fixation Block simultaneously extends to the outside of fixed block and is fixedly connected with spacing head, and the other end of the pull rod through fixed block and extends to solid Determine the inside of block and be fixedly connected with briquetting, the bottom of the briquetting is flexibly connected with the second bend pipe, the outer surface of the pull rod Movable sleeve is connected to the stiffness spring between fixed block and briquetting, the both ends of the stiffness spring respectively with briquetting and fixed block Inner wall be fixedly connected, the other end of the motion bar is fixedly connected with shaft, and the other end of the shaft is fixedly connected with folder Bar, the quantity of the clamping bar are two, and movable sleeve is connected to the first bend pipe, the top of two clamping bars between two clamping bars It is connected to threaded rod with the equal movable sleeve in bottom, the both ends of the threaded rod extend through clamping bar and extend to the outside of clamping bar, described The threaded one end of threaded rod is socketed with the thread cap outside clamping bar.

Preferably, the bottom of first bend pipe and the second bend pipe is connected with sole piece, the sole piece it is positive Two sides are fixedly installed with strut.

Preferably, the medial surface of the mounting post is fixedly installed with the buffer stopper below rotating bar, the buffer stopper Inside be fixedly installed with loop bar, the outer surface movable sleeve of the loop bar is connected to movable block.

Preferably, the outer surface movable sleeve of the loop bar is connected to compressed spring, the both ends of the compressed spring respectively with peace The side of dress column is fixedly connected with the side of movable block.

Preferably, the left side of the movable block is fixedly installed with hanging rod, and the other end of the hanging rod runs through buffer stopper simultaneously The outside of buffer stopper side is extended to, the hanging rod is sequentially connected by compression bar and strut.

Preferably, the cross bar being fixedly installed between two mounting posts above the first bend pipe, the cross bar Middle part fixing sleeve is connected to top cover.

Preferably, the bottom of the top cover is fixedly installed with adjusting rod, and the top movable of the adjusting rod inner cavity is socketed with Sliding shoe, the two sides of the sliding shoe are fixedly installed with screw rod, and the other end of two screw rods runs through adjusting rod and prolongs The outside and screw thread for extending to adjusting rod are socketed with limited cap.

Preferably, the bottom of the sliding shoe is fixedly connected with rack gear, and the other end of the rack gear through adjusting rod and prolongs It extends to the outside of adjusting rod bottom end and is fixedly installed with welding rifle.

Preferably, the front engagement of the rack gear is connected with the gear positioned at adjusting rod intracavity bottom, the gear it is interior Portion is fixedly attached dynamic bar, and one end of the power rail through gear and extends to the outside of gear and the left side with adjusting rod Inner wall is fixedly connected, the other end of the power rail sequentially pass through gear and adjusting rod and extend to adjusting rod side outside and It is fixedly connected with handle.

(3) beneficial effect

Compared with prior art, the present invention provides a kind of hardware elbow pipe welding machine, have it is following the utility model has the advantages that

1, the hardware elbow pipe welding machine is rotated by the work belt turn moving axis of dual-axle motor, utilizes turning set and connection Cooperation between band and passive set and side set makes rotating bar and motion bar that the second bend pipe and the first bend pipe be driven to rotate at the same speed in the same direction, The first bend pipe and the second bend pipe contact position are welded using welding rifle, ensure that the uniformity of welding.

2, the hardware elbow pipe welding machine, is pressed down against sole piece by the first bend pipe and the second bend pipe, using hanging rod, strut and Cooperation between compression bar makes hanging rod that movable block be pushed, to close to the movement of the direction of mounting post, to utilize compressed spring bullet on loop bar Power buffers movable block, buffers sole piece to the first bend pipe and the second bend pipe, reduces the first bend pipe and the second bend pipe Vibration in the welding process improves the stability of the bonding machine.

3, the hardware elbow pipe welding machine welds rack drives using the cooperation between gear and rack gear by rotational handle It connects rifle to move up and down together, makes to weld the position that rifle is adjusted to suitable welded pipe line, then turn limited cap, utilize screw rod and limit Cooperation between cap fixes sliding shoe, guarantee stop operating handle when welding rifle will not improve the weldering because of gravity fall The stability to pick.

Detailed description of the invention

Fig. 1 is schematic structural view of the invention；

Fig. 2 is buffer stopper side view local cutting structural schematic diagram of the present invention；

Fig. 3 is the side structure schematic view of clamping bar of the present invention；

Fig. 4 is the partial enlargement diagram in Fig. 1 at A；

Fig. 5 is the partial enlargement diagram in Fig. 1 at B.

In figure: 1 pedestal, 2 mounting posts, 3 fixed bins, 4 dual-axle motors, 5 rotation axis, 6 turning sets, 7 connecting bands, 8 rotations Bar, 9 motion bars, 10 passive sets, 11 sides set, 12 side plates, 13 connecting rods, 14 fixed blocks, 15 pull rods, 16 spacing heads, 17 briquettings, 18 stiffness springs, 19 shafts, 20 clamping bars, 21 threaded rods, 22 thread caps, 23 sole pieces, 24 buffer stoppers, 25 loop bars, 26 movable blocks, 27 compressed springs, 28 hanging rods, 29 struts, 30 compression bars, 31 cross bars, 32 top covers, 33 adjusting rods, 34 sliding shoes, 35 screw rods, 36 limits Position cap, 37 rack gears, 38 welding rifles, 39 gears, 40 power rails, 41 handles, 42 first bend pipes, 43 second bend pipes.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other Embodiment shall fall within the protection scope of the present invention.

It please refers to Fig. 1-5, a kind of hardware elbow pipe welding machine, including pedestal 1, the top of pedestal 1 and is fixedly installed with mounting post 2, the cross bar 31 being fixedly installed between two mounting posts 2 above the first bend pipe 42, the middle part fixing sleeve of cross bar 31 is connected to Top cover 32, the bottom of top cover 32 are fixedly installed with adjusting rod 33, and the top movable of 33 inner cavity of adjusting rod is socketed with sliding shoe 34, sliding The bottom of motion block 34 is fixedly connected with rack gear 37, and the front engagement of rack gear 37 is connected with the tooth positioned at 33 intracavity bottom of adjusting rod Wheel 39, the inside of gear 39 are fixedly attached dynamic bar 40, and one end of power rail 40 through gear 39 and extends to gear 39 External and be fixedly connected with the inner left wall of adjusting rod 33, the other end of power rail 40 sequentially passes through gear 39 and adjusting rod 33 And extend to the outside of 33 side of adjusting rod and be fixedly connected with handle 41, by rotational handle 41, utilize gear 39 and rack gear Cooperation between 37 makes rack gear 37 that welding rifle 38 be driven to move up and down together, and welding rifle 38 is made to be adjusted to be suitble to welded pipe line The other end of position, rack gear 37 through adjusting rod 33 and extends to the outside of 33 bottom end of adjusting rod and is fixedly installed with welding rifle 38, the two sides of sliding shoe 34 are fixedly installed with screw rod 35, and the other end of two screw rods 35 runs through adjusting rod 33 and extends to The outside of adjusting rod 33 and screw thread is socketed with limited cap 36, turns limited cap 36, utilizes matching between screw rod 35 and limited cap 36 Conjunction keeps sliding shoe 34 fixed, guarantee stop operating handle 41 when welding rifle 38 will not improve the bonding machine because of gravity fall Stability, the medial surface of mounting post 2 is fixedly installed with the buffer stopper 24 positioned at the lower section of rotating bar 8, and the front of buffer stopper 24 is opened It is mobile in the inside of buffer stopper 24 convenient for hanging rod 28 equipped with sliding groove, the reasonability of the bonding machine is improved, buffer stopper 24 Inside is fixedly installed with loop bar 25, and the outer surface movable sleeve of loop bar 25 is connected to compressed spring 27, utilizes 27 elastic force pair of compressed spring Movable block 26 is buffered, and buffers sole piece 23 to the first bend pipe 42 and the second bend pipe 43, reduces the first bend pipe 42 and the The vibration of two bend pipes 43 in the welding process, improves the stability of the bonding machine, the both ends of compressed spring 27 respectively with installation The side of column 2 is fixedly connected with the side of movable block 26, and the outer surface movable sleeve of loop bar 25 is connected to movable block 26, movable block 26 Left side is fixedly installed with hanging rod 28, and the other end of hanging rod 28 runs through buffer stopper 24 and extends to the outside of 24 side of buffer stopper, Hanging rod 28 is sequentially connected by compression bar 30 and strut 29, and the quantity of mounting post 2 is two, and two mounting posts 2 are about in pedestal 1 The heart is symmetrical, the fixed bin 3 being fixedly installed between two mounting posts 2 in the middle part of 1 top of pedestal, and the inside of fixed bin 3 is solid Dingan County is equipped with dual-axle motor 4, and dual-axle motor 4 is well-known technique, the model Y100L-2 of the dual-axle motor 4, the dual-axle motor 4 Rotation for rotating bar 8 and motion bar 9 provides power, improves the reasonability of the bonding machine, passes through the work belt of dual-axle motor 4 Turn moving axis 5 rotates, and makes rotating bar 8 and activity using the cooperation between turning set 6 and connecting band 7 and passive set 10 and side set 11 Bar 9 drives the second bend pipe 43 and the synchronized rotation in the same direction of the first bend pipe 42, using welding rifle 38 to the first bend pipe 42 and the second bend pipe 43 contact positions are welded, and are pressed down against sole piece 23 by the first bend pipe 42 and the second bend pipe 43, are utilized hanging rod 28, strut 29 Cooperation between compression bar 30 makes hanging rod 28 push movable block 26 on loop bar 25 to, guarantee mobile close to the direction of mounting post 2 The uniformity of welding, the output shaft of dual-axle motor 4 are fixedly installed with rotation axis 5 respectively, and two rotation axis 5 extend through solid Determine box 3 and mounting post 2 and the outside for extending to 2 side of mounting post, two one end of rotation axis 5 far from mounting post 2 are fixed respectively It is socketed with turning set 6, pivot bush unit has rotating bar 8 and motion bar 9, rotating bar 8 and motion bar respectively for the inside of two mounting posts 2 9 both ends extend through mounting post 2 and extend to the outside of mounting post 2, the one end of rotating bar 8 and motion bar 9 far from mounting post 2 Fixing sleeve is connected to passive set 10 respectively and side covers 11, and turning set 6 is driven with passive set 10 and side set 11 respectively by connecting band 7 Connection, the other end of rotating bar 8 are fixedly connected with side plate 12, and the other side of side plate 12 is fixedly installed with connecting rod 13, connecting rod 13 quantity is two, central symmetry of two connecting rods 13 about side plate 12, and the other end of two connecting rods 13 is fixed to be connected It is connected to fixed block 14,14 inner wall of fixed block is connected with the second bend pipe 43, and the outside movable sleeve of fixed block 14 is connected to pull rod 15, using the cooperation between pull rod 15, spacing head 16, briquetting 17 and stiffness spring 18, briquetting 17 is made to push down the second bend pipe 43 simultaneously Second bend pipe 43 is fixed, guarantees the stability when welding of the second bend pipe 43, fixed block 14 is run through simultaneously in one end of pull rod 15 It extends to the outside of fixed block 14 and is fixedly connected with spacing head 16, the other end of pull rod 15 through fixed block 14 and extends to solid Determine the inside of block 14 and be fixedly connected with briquetting 17, the bottom of briquetting 17 is flexibly connected with the second bend pipe 43, the appearance of pull rod 15 Face movable sleeve is connected to the stiffness spring 18 between fixed block 14 and briquetting 17, the both ends of stiffness spring 18 respectively with briquetting 17 are fixedly connected with the inner wall of fixed block 14, and the other end of motion bar 9 is fixedly connected with shaft 19, and the other end of shaft 19 is fixed It is connected with clamping bar 20, the quantity of clamping bar 20 is two, and movable sleeve is connected to the first bend pipe 42, the first bend pipe 42 between two clamping bars 20 Sole piece 23 is connected with the bottom of the second bend pipe 43, the positive two sides of sole piece 23 are fixedly installed with strut 29, and two The equal movable sleeve in top and bottom of a clamping bar 20 is connected to threaded rod 21, and the both ends of threaded rod 21 extend through clamping bar 20 and extend to The outside of clamping bar 20, the threaded one end of threaded rod 21 is socketed with the thread cap 22 outside clamping bar 20, by turning thread cap 22, two clamping bars 20 are fixed to the first bend pipe 42, prevent the first bend pipe 42 unstable when welding.

When work, the first bend pipe 42 and the second bend pipe 43 are placed on sole piece 23 first, then pull spacing head 16, it will Second bend pipe 43 injects in fixed block 14, then unclamps spacing head 16, briquetting 17 is made to fix the second bend pipe 43, then again will First bend pipe 42 injects in clamping bar 20, then tightens thread cap 22, is fixed the first bend pipe 42, is then rotated further by handle 41, Welding rifle 38 is adjusted to the position properly welded, tightening limited cap 36 keeps welding rifle 38 fixed, dual-axle motor 4 is finally opened, It can start welding.

In conclusion the hardware elbow pipe welding machine, is rotated by the work belt turn moving axis 5 of dual-axle motor 4, utilizes rotation Cooperation between set 6 and connecting band 7 and passive set 10 and side set 11 makes rotating bar 8 and motion bar 9 drives the second bend pipe 43 and the The synchronized rotation in the same direction of one bend pipe 42, welds the first bend pipe 42 and 43 contact position of the second bend pipe using welding rifle 38, guarantees The uniformity of welding；It is pressed down against sole piece 23 by the first bend pipe 42 and the second bend pipe 43, utilizes hanging rod 28, strut 29 and pressure Cooperation between bar 30 makes hanging rod 28 that movable block 26 be pushed, to close to the movement of the direction of mounting post 2, to utilize pressure on loop bar 25 27 elastic force of contracting spring buffers movable block 26, buffers sole piece 23 to the first bend pipe 42 and the second bend pipe 43, reduces The vibration of first bend pipe 42 and the second bend pipe 43 in the welding process, improves the stability of the bonding machine；Pass through rotational handle 41, using the cooperation between gear 39 and rack gear 37, make rack gear 37 that welding rifle 38 be driven to move up and down together, makes to weld the tune of rifle 38 The whole position to suitable welded pipe line, then limited cap 36 is turned, make sliding shoe using the cooperation between screw rod 35 and limited cap 36 34 is fixed, guarantee stop operating handle 41 when welding rifle 38 will not improve the stability of the bonding machine because of gravity fall；Solution Existing bonding machine of having determined is not adapted to obtain limiting device with bend pipe, it cannot be guaranteed that bend pipe weldering during elbow pipe welding What is connect is uniform, influences welding quality；And the device that bend pipe is not buffered, during being welded to bend pipe, Vibration will affect the progress of welding, reduce the quality of welding；And the device that welding rifle 38 is not adjusted, in the mistake of welding The problem of position of the welding rifle 38 apart from bend pipe can not be adjusted in journey according to the diameter of bend pipe, influence welding efficiency.

It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment Intrinsic element.

It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding And modification, the scope of the present invention is defined by the appended.

Claims (9)

1. a kind of hardware elbow pipe welding machine, including pedestal (1), it is characterised in that: be fixedly installed with peace at the top of the pedestal (1) It fills column (2), the quantity of the mounting post (2) is two, and central symmetry of two mounting posts (2) about pedestal (1) is described The fixed bin (3) being fixedly installed in the middle part of pedestal (1) top between two mounting posts (2), the fixed bin (3) it is interior Portion is fixedly installed with dual-axle motor (4), and the output shaft of the dual-axle motor (4) is fixedly installed with rotation axis (5) respectively, two institutes It states rotation axis (5) and extends through fixed bin (3) and mounting post (2) and the outside for extending to mounting post (2) side, described in two Fixing sleeve is connected to turning set (6) respectively for the one end of rotation axis (5) far from mounting post (2), the inner part of two mounting posts (2) Other movable sleeve is connected to rotating bar (8) and motion bar (9), and the both ends of the rotating bar (8) and motion bar (9) extend through mounting post (2) and to extend to the one end of the outsides of mounting post (2), the rotating bar (8) and motion bar (9) far from mounting post (2) solid respectively Surely it is socketed with passive set (10) and side set (11), the turning set (6) is covered with passive set (10) and side respectively by connecting band (7) (11) it is sequentially connected, the other end of the rotating bar (8) is fixedly connected with side plate (12), and the other side of the side plate (12) is fixed It is equipped with connecting rod (13), the quantity of the connecting rod (13) is two, and two connecting rods (13) are about side plate (12) The other end of central symmetry, two connecting rods (13) is fixedly connected to fixed block (14), fixed block (14) inner wall It is connected with the second bend pipe (43), the outside movable sleeve of the fixed block (14) is connected to pull rod (15), the pull rod (15) One end is through fixed block (14) and extends to the outside of fixed block (14) and is fixedly connected with spacing head (16), the pull rod (15) The other end through fixed block (14) and extending to the inside of fixed block (14) and be fixedly connected with briquetting (17), the briquetting (17) bottom is flexibly connected with the second bend pipe (43), and the outer surface movable sleeve of the pull rod (15) is connected to positioned at fixed block (14) Stiffness spring (18) between briquetting (17), the both ends of the stiffness spring (18) respectively with briquetting (17) and fixed block (14) Inner wall be fixedly connected, the other end of the motion bar (9) is fixedly connected with shaft (19), and the other end of the shaft (19) is solid Surely it is connected with clamping bar (20), the quantity of the clamping bar (20) is two, and movable sleeve is connected to first between two clamping bars (20) The equal movable sleeve in top and bottom of bend pipe (42), two clamping bars (20) is connected to threaded rod (21), the threaded rod (21) Both ends extend through clamping bar (20) and extend to the outside of clamping bar (20), and the threaded one end of the threaded rod (21), which is socketed with, to be located at The external thread cap (22) of clamping bar (20).

2. a kind of hardware elbow pipe welding machine according to claim 1, it is characterised in that: first bend pipe (42) and second The bottom of bend pipe (43) is connected with sole piece (23), and the positive two sides of the sole piece (23) are fixedly installed with strut (29)。

3. a kind of hardware elbow pipe welding machine according to claim 1, it is characterised in that: the medial surface of the mounting post (2) It is fixedly installed with the buffer stopper (24) being located at below rotating bar (8), the inside of the buffer stopper (24) is fixedly installed with loop bar (25), the outer surface movable sleeve of the loop bar (25) is connected to movable block (26).

4. a kind of hardware elbow pipe welding machine according to claim 3, it is characterised in that: the outer surface of the loop bar (25) is living It is dynamic to be socketed with compressed spring (27), the both ends of the compressed spring (27) respectively with the side of mounting post (2) and movable block (26) Side be fixedly connected.

5. a kind of hardware elbow pipe welding machine according to claim 3, it is characterised in that: the left side of the movable block (26) It is fixedly installed with hanging rod (28), the other end of the hanging rod (28) through buffer stopper (24) and extends to buffer stopper (24) side Outside, the hanging rod (28) are sequentially connected by compression bar (30) and strut (29).

6. a kind of hardware elbow pipe welding machine according to claim 1, it is characterised in that: between two mounting posts (2) It is fixedly installed with the cross bar (31) being located above the first bend pipe (42), the middle part fixing sleeve of the cross bar (31) is connected to top cover (32)。

7. a kind of hardware elbow pipe welding machine according to claim 6, it is characterised in that: the bottom of the top cover (32) is fixed It is equipped with adjusting rod (33), the top movable of adjusting rod (33) inner cavity is socketed with sliding shoe (34), the sliding shoe (34) Two sides be fixedly installed with screw rod (35), the other end of two screw rods (35) runs through adjusting rod (33) and extends to tune The outside of pole (33) and screw thread is socketed with limited cap (36).

8. a kind of hardware elbow pipe welding machine according to claim 7, it is characterised in that: the bottom of the sliding shoe (34) is solid Surely it is connected with rack gear (37), the other end of the rack gear (37) through adjusting rod (33) and extends to the outer of adjusting rod (33) bottom end Portion and be fixedly installed with welding rifle (38).

9. a kind of hardware elbow pipe welding machine according to claim 8, it is characterised in that: the front engagement of the rack gear (37) It is connected with the gear (39) positioned at adjusting rod (33) intracavity bottom, the inside of the gear (39) is fixedly attached dynamic bar (40), one end of the power rail (40) through gear (39) and extends to the outside of gear (39) and the left side with adjusting rod (33) Side inner wall is fixedly connected, and the other end of the power rail (40) sequentially passes through gear (39) and adjusting rod (33) and extends to adjusting The outside of bar (33) side and it is fixedly connected with handle (41).