Automatic welding device for container lock rod

Abstract

The present application discloses an automated welding device for container lock rods, comprising a control unit, a frame, two supporting plates, and two bar rails, wherein a plurality of rod drive mechanisms are installed at the bar rails, and the welding device has a material storage position and a first working position, wherein each supporting plate has a plurality of arc-shaped grooves at the material storage position, and each supporting plate has an arc-shaped groove at the first working position; the first working position has two storage ring units, two upper ring units, and two spot welding units. The welding device of the present application can realize the automated welding of lock rods with less manual participation, greatly improving production efficiency, and is suitable for the automated production of large-scale container lock rods. The bar rails and the rod drive mechanism enable the smooth movement of the rod body of the lock rod, and a pressure sensing mechanism is provided at the arc-shaped groove, which can detect the rod body in real time, thereby ensuring the welding quality.

Description

Technical Field

[0001] The present invention relates to the technical field of container lock rod welding, and more particularly to an automatic welding device for container lock rods. Background Art

[0002] With the continuous development of global trade, container transportation has become one of the main modes of international logistics. Container locking bars are used to help lock container doors and play an important role in ensuring the safety of goods during long-distance transportation.

[0003] The container lock rod is mainly composed of a rod body, a handle base, two first positioning rings, two second positioning rings and two locking heads. During the welding operation, the handle base, two first positioning rings, two second positioning rings and two locking heads need to be welded to the rod body. Since there are many welding positions and the welding position of each component is different, more manual operation is required, and automated welding is difficult, which increases the difficulty of welding and reduces work efficiency. Summary of the Invention

[0004] The present invention aims to overcome the defects of the prior art and provides an automatic welding device for container lock rods.

[0005] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions: a welding device, comprising a control unit, a frame, two supporting plates and two bar rails, a plurality of rod driving mechanisms are installed on the bar rails, the rod driving mechanism comprises a moving mechanism and an inverted U-shaped frame connected to the moving mechanism through a first electric lifting rod; the welding device has a storage position and a first working position, each supporting plate has a plurality of arc-shaped grooves at the storage position, and each supporting plate has an arc-shaped groove at the first working position; the first working position has two ring storage units, two upper ring units and two spot welding units.

[0006] Furthermore, the welding device has a second working position, and each supporting plate has an arc-shaped groove at the second working position.

[0007] Furthermore, the welding device has a third working position, and each supporting plate has an arc-shaped groove at the third working position.

[0008] Furthermore, the welding device has a fourth working position, and each supporting plate has an arc-shaped groove at the fourth working position.

[0009] Furthermore, the second working position has a handle seat feeding unit, two handle seat welding units, two ring storage units, two upper ring units, two spot welding units and two limit plates, and the limit plates have arc grooves.

[0010] Furthermore, the third working position has two lock feeding units, two lock positioning units and two spot welding units.

[0011] Furthermore, the fourth working position includes two sets of welding mechanisms and two rotation drive mechanisms.

[0012] Furthermore, the moving mechanism can translate along the bar rail.

[0013] Furthermore, a rack is fixed to the bar rail, and the moving mechanism includes a slide, a gear matched with the rack, and a gear driving mechanism for driving the gear, and the slide has a track groove matched with the bar rail.

[0014] Furthermore, the moving mechanism also includes a traveling wheel set capable of clamping the bar rail.

[0015] Thereby the movement of the moving mechanism is more stable.

[0016] Furthermore, it also includes a material receiving container, which is located below the downstream ends of the two carrying plates.

[0017] The receiving container can thus be used to receive the already welded locking rods.

[0018] Furthermore, the locking rod includes a rod body, a handle seat, two first positioning rings, two second positioning rings and two locking heads.

[0019] Furthermore, the inverted U-shaped frame can be lowered under the drive of the first electric lifting rod so that the rod body of the locking rod is located between the inverted U-shaped frames and is driven by the inverted U-shaped frame to move along the bearing plate.

[0020] Furthermore, the radius corresponding to the arc-shaped groove is equal to the radius of the locking rod body.

[0021] Therefore, the arc-shaped groove can better accommodate and position the rod body of the locking rod.

[0022] Furthermore, the rod body is cylindrical, and the first positioning ring and the second positioning ring are both annular.

[0023] Furthermore, the number of the rod driving mechanisms on each bar rail is greater than or equal to two.

[0024] Furthermore, the number of the rod driving mechanisms at each bar rail is four.

[0025] Furthermore, the ring storage unit includes an end plate and a guide rod, and the end plate is provided with a first pressure sensor; the guide rod of the first working position is sleeved with multiple first positioning rings, and the end plate at the first working position is also connected to a first electric telescopic rod.

[0026] Furthermore, the upper ring unit includes a first electric push rod, a first translation seat, a finger cylinder, a lifting plate connected to the first translation seat through a second electric lifting rod, and two abutment plates, and the spot welding unit includes a third electric lifting rod and a first welder.

[0027] Furthermore, a plurality of second positioning rings are sleeved on the guide rod of the second working position.

[0028] Furthermore, the handle seat feeding unit includes a first lifting mechanism and a first storage box connected to the first lifting mechanism through a first connecting frame, the first storage box has first through holes on both sides, and the first storage box is connected to a first L-shaped plate on both sides, and the first L-shaped plate is connected to a first clamping block through a first telescopic cylinder; the handle seat welding unit includes a second translation seat, a second electric push rod and a second welder connected to the second translation seat through a second electric telescopic rod.

[0029] Furthermore, the guide rod is fixed to the end plate.

[0030] Furthermore, a plurality of first positioning rings are sleeved on the guide rod of the ring storage unit at the first working position.

[0031] Furthermore, a plurality of second positioning rings are sleeved on the guide rod of the ring storage unit at the second working position.

[0032] Furthermore, the end plate of the ring storage unit at the first working position is also connected to a first electric telescopic rod.

[0033] Furthermore, the first translation seat is driven by a first electric push rod, the finger cylinder is installed at the first translation seat, and the abutment plate is fixed at the lifting plate.

[0034] Furthermore, the first welding machine is driven by a third electric lifting rod.

[0035] Furthermore, the top and bottom ends of the first storage box are both open.

[0036] Further, the first clamping block is inserted into the first through hole.

[0037] Furthermore, a plurality of handle seats are accommodated in the first storage box.

[0038] Furthermore, the second electric push rod is used to drive the second translation seat.

[0039] Therefore, the second welding machine can weld and fix the handle base and the rod body from both sides of the handle base.

[0040] Furthermore, the first electric telescopic rod is fixed to the frame.

[0041] In some embodiments, the end plate of the first working position is further connected to a guide column, and a guide sleeve that cooperates with the guide column is installed on the frame.

[0042] Therefore, the translation of the guide rod in the first working position is more stable.

[0043] Furthermore, the end plate of the ring storage unit at the second working position is fixed to the frame.

[0044] Furthermore, the lock feeding unit includes a second lifting mechanism, a second storage box connected to the second lifting mechanism through a second connecting frame, the second storage box has second through holes on both sides, and the second storage box is connected to a second L-shaped plate on both sides, and the second L-shaped plate is connected to a second clamping block through a second telescopic cylinder; the lock positioning unit includes a third lifting mechanism and a positioning seat, and the positioning seat has a positioning groove that cooperates with the lock.

[0045] Furthermore, the welding mechanism includes a fourth electric lifting rod, a first positioning ring welder, a fifth electric lifting rod, a second positioning ring welder, a sixth electric lifting rod and a locking welder; the rotary drive mechanism includes an upper lifting mechanism, a clamping wheel unit driven to lift by the upper lifting mechanism, a lower lifting mechanism and a driving wheel unit driven to lift by the lower lifting mechanism.

[0046] Furthermore, the top and bottom ends of the second storage box are both open.

[0047] Further, the second clamping block is inserted into the second through hole.

[0048] Furthermore, a plurality of locks are accommodated in the second storage box.

[0049] Furthermore, the positioning seat is driven by a third lifting mechanism.

[0050] Furthermore, the first positioning ring welder is driven by the fourth electric lifting rod, the second positioning ring welder is driven by the fifth electric lifting rod, and the locking head welder is driven by the sixth electric lifting rod.

[0051] Furthermore, the abutting wheel unit includes two abutting wheels.

[0052] Furthermore, the driving wheel unit includes two driving wheels and a driving wheel driving mechanism for driving the two driving wheels to rotate.

[0053] Furthermore, the first positioning ring welder, the second positioning ring welder and the locking head welder are all arc welding machines or plasma welding machines.

[0054] Furthermore, the first welder and the second welder are both arc welding machines or plasma welding machines.

[0055] Furthermore, the first lifting mechanism, the second lifting mechanism, the third lifting mechanism, the upper lifting mechanism and the lower lifting mechanism are all installed on the frame.

[0056] Furthermore, the first lifting mechanism, the second lifting mechanism, the third lifting mechanism, the upper lifting mechanism and the lower lifting mechanism are all electric telescopic rods.

[0057] Furthermore, the plurality of handle seats in the first storage box are distributed in a row.

[0058] Furthermore, the multiple lock heads in the second storage box are distributed in a row.

[0059] Furthermore, the second storage box is provided with two vertical limiting protrusions that cooperate with the lock head.

[0060] Thereby, a plurality of handle seats can be lowered in the first storage box under the action of gravity, and materials can be loaded from the top of the first storage box; a plurality of lock heads can be lowered in the second storage box under the action of gravity, and materials can be loaded from the top of the second storage box.

[0061] Furthermore, the outer side of the bearing plate can abut against the first positioning ring, and the outer side of the limiting plate can abut against the second positioning ring.

[0062] Furthermore, the limiting plate includes two arc-shaped plates and a straight plate connecting the two arc-shaped plates.

[0063] Therefore, the arrangement of the arc-shaped plates at both ends makes it easier for the rod body of the locking rod to pass through the limiting plate.

[0064] Furthermore, the first electric push rod is installed on the frame.

[0065] Furthermore, the first translation seat has a first sliding groove, and the upper ring unit also includes a first sliding rail that cooperates with the first sliding groove.

[0066] Furthermore, the second electric push rod is installed on the frame.

[0067] Furthermore, the second translation seat has a second sliding groove, and the handle seat welding unit also includes a second sliding rail that cooperates with the second sliding groove.

[0068] Furthermore, the first slide rail is installed on the rack; the second slide rail is installed on the rack.

[0069] Furthermore, each arc-shaped groove has a mounting blind hole, and a pressure sensing mechanism is installed at the mounting blind hole. The pressure sensing mechanism includes a second pressure sensor, a pressure plate capable of pressing the second pressure sensor, and a movable block connected to the pressure plate through a spring, and the end of the movable block is hemispherical.

[0070] Furthermore, the end of the movable block can be pressed by the rod body of the locking rod.

[0071] Thereby, the arc-shaped groove can sense whether there is a locking rod at the arc-shaped groove.

[0072] Furthermore, the multiple arc-shaped grooves of the carrying plate at the material storage position are distributed in a row with equal intervals.

[0073] Furthermore, the spot welding units of the first working position and the second working position are both located above the worked locking rod, and the spot welding unit of the third working position is located below the worked locking rod.

[0074] Beneficial effects:

[0075] 1. The welding device of the present application can realize the automatic welding of the lock rod with less manual participation, greatly improving the production efficiency, and is suitable for the automated production of large-scale container lock rods.

[0076] 2. The welding device of the present application realizes the smooth movement of the rod body of the locking rod through the bar rail and the rod driving mechanism, and a pressure sensing mechanism is provided at the arc groove, which can detect the rod body in real time, thereby ensuring the welding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0077] Figure 1 This is a schematic diagram of the welding device from the first perspective;

[0078] Figure 2 This is an enlarged view of area A;

[0079] Figure 3 This is an enlarged view of area B;

[0080] Figure 4 This is an enlarged view of area C;

[0081] Figure 5 This is an enlarged view of area D;

[0082] Figure 6 This is an enlarged view of area E;

[0083] Figure 7 is a schematic diagram of the welding device from a second perspective;

[0084] Figure 8 This is an enlarged view of area F;

[0085] Figure 9 This is an enlarged view of area G;

[0086] Figure 10 A schematic diagram of the welding device from a third perspective;

[0087] Figure 11 This is an enlarged view of the H region;

[0088] Figure 12 This is an enlarged view of area I;

[0089] Figure 13 This is an enlarged view of the J region;

[0090] Figure 14 This is an enlarged view of the K region;

[0091] Figure 15 This is an enlarged view of the L area;

[0092] For the convenience of illustration, the position of one of the arc-shaped grooves of the supporting plate is cut out in section in the figure.

[0093] Explanation of the reference numerals: supporting plate 1; arc-shaped groove 1.1; mounting blind hole 1.2; bar rail 2; moving mechanism 3.1; first electric lifting rod 3.2; inverted U-shaped frame 3.3; end plate 4.1; guide rod 4.2; first positioning ring 4.3; second positioning ring 4.4; first electric telescopic rod 4.5; first electric push rod 5.1; first translation seat 5.2; finger cylinder 5.3; second electric lifting rod 5.4; lifting plate 5.5; abutment plate 5.6; first slide rail 5.7; third electric lifting rod 6.1; first welding machine 6.2; first lifting mechanism 7.1; first connecting frame 7.2; first material storage box 7.3; first L-shaped plate 7.4; first telescopic cylinder 7.5; first clamping block 7.6; second translation seat 8.1; second electric push rod 8.2; second electric Telescopic rod 8.3; second welder 8.4; second slide rail 8.5; limit plate 9; second lifting mechanism 10.1; second connecting frame 10.2; second material storage box 10.3; second L-shaped plate 10.4; second telescopic cylinder 10.5; third lifting mechanism 11.1; positioning seat 11.2; fourth electric lifting rod 12.1; first positioning ring welder 12.2; fifth electric lifting rod 12.3; second positioning ring welder 12.4; sixth electric lifting rod 12.5; locking welder 12.6; upper lifting mechanism 13.1; pressing wheel unit 13.2; lower lifting mechanism 13.3; driving wheel unit 13.4; rod body 14; handle base 15; locking head 16; second pressure sensor 17.1; pressure plate 17.2; spring 17.3; movable block 17.4. DETAILED DESCRIPTION

[0094] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0095] The present invention provides an automatic welding device for container lock rods as shown in the figure, comprising a control unit, a frame, two load-bearing plates 1 and two bar rails 2, wherein the bar rails 2 are provided with a plurality of rod driving mechanisms, wherein the rod driving mechanisms include a moving mechanism 3.1 capable of translating along the bar rails 2 and an inverted U-shaped frame 3.3 connected to the moving mechanism 3.1 via a first electric lifting rod 3.2; the welding device has a storage position, a first working position, a second working position, a third working position and a fourth working position, each load-bearing plate 1 has a plurality of arc grooves 1.1 at the storage position, and each load-bearing plate 1 has a plurality of arc grooves 1.1 at the storage position. The first working position, the second working position, the third working position and the fourth working position respectively have an arc-shaped groove 1.1; the first working position has two ring storage units, two upper ring units and two spot welding units; the second working position has a handle seat feeding unit, two handle seat welding units, two ring storage units, two upper ring units, two spot welding units and two limit plates 9, and the limit plates 9 have arc grooves; the third working position has two lock feeding units, two lock positioning units and two spot welding units; the fourth working position includes two sets of welding mechanisms and two rotary drive mechanisms. The ring storage unit includes an end plate 4.1 and a guide rod 4.2 fixed to the end plate 4.1, and the end plate 4.1 has a first pressure sensor; the guide rod 4.2 of the ring storage unit at the first working position is sleeved with a plurality of first positioning rings 4.3, and the guide rod 4.2 of the ring storage unit at the second working position is sleeved with a plurality of second positioning rings 4.4, and the end plate 4.1 of the ring storage unit at the first working position is also connected to a first electric telescopic rod 4.5; the upper ring unit includes a first electric push rod 5.1, a first translation seat 5.2 driven by the first electric push rod 5.1, a finger cylinder 5.3 installed at the first translation seat 5.2, a lifting plate 5.5 connected to the first translation seat 5.2 through a second electric lifting rod 5.4, and two abutment plates 5.6 fixed to the lifting plate 5.5, and the spot welding unit includes a third electric push rod 5.1, a first translation seat 5.2 driven by the first electric push rod 5.1, a finger cylinder 5.3 installed at the first translation seat 5.2, a lifting plate 5.5 connected to the first translation seat 5.2 through a second electric lifting rod 5.4, and two abutment plates 5.6 fixed to the lifting plate 5.5. The electric lifting rod 6.1 and the first welder 6.2 driven by the third electric lifting rod 6.1; the handle seat feeding unit includes a first lifting mechanism 7.1 and a first storage box 7.3 with open top and bottom ends connected to the first lifting mechanism 7.1 through a first connecting frame 7.2, and the first storage box 7.3 has first through holes on both sides, and the first storage box 7.3 is connected to both sides with a first L-shaped plate 7.4, the first L-shaped plate 7.4 is connected to the first clamping block 7.6 inserted into the first through hole through a first telescopic cylinder 7.5, and the first storage box 7.3 contains a plurality of handle seats 15; the handle seat welding unit includes a second translation seat 8.1, a second electric push rod 8.2 that drives the second translation seat 8.1, and a second welder 8.4 connected to the second translation seat 8.1 through a second electric telescopic rod 8.3.The lock feeding unit includes a second lifting mechanism 10.1, a second storage box 10.3 with open top and bottom ends connected to the second lifting mechanism 10.1 via a second connecting frame 10.2, the second storage box 10.3 having second through holes on both sides, a second L-shaped plate 10.4 connected to both sides of the second storage box 10.3, the second L-shaped plate 10.4 being connected to a second clamping block inserted into the second through holes via a second telescopic cylinder 10.5, and the second storage box 10.3 containing a plurality of locks 16; the lock positioning unit includes a third lifting mechanism 11.1 and a positioning seat 11.2 driven by the third lifting mechanism 11.1, the positioning seat 11. 2 has a positioning groove that cooperates with the lock head 16; the welding mechanism includes a fourth electric lifting rod 12.1, a first positioning ring welder 12.2 driven by the fourth electric lifting rod 12.1, a fifth electric lifting rod 12.3, a second positioning ring welder 12.4 driven by the fifth electric lifting rod 12.3, a sixth electric lifting rod 12.5, and a locking head welder 12.6 driven by the sixth electric lifting rod 12.5; the rotation drive mechanism includes an upper lifting mechanism 13.1, a pressing wheel unit 13.2 driven to rise and fall by the upper lifting mechanism 13.1, a lower lifting mechanism 13.3, and a driving wheel unit 13.4 driven to rise and fall by the lower lifting mechanism 13.3.

[0096] The abutting wheel unit 13.2 includes two abutting wheels; the driving wheel unit 13.4 includes two driving wheels and a driving wheel driving mechanism for driving the two driving wheels to rotate. The first lifting mechanism 7.1, the second lifting mechanism 10.1, the third lifting mechanism 11.1, the upper lifting mechanism 13.1, and the lower lifting mechanism 13.3 are all mounted on the frame; the first lifting mechanism 7.1, the second lifting mechanism 10.1, the third lifting mechanism 11.1, the upper lifting mechanism 13.1, and the lower lifting mechanism 13.3 are all electric telescopic rods. The multiple handle seats 15 in the first storage box 7.3 are arranged in a row; the multiple locks 16 in the second storage box 10.3 are arranged in a row; the second storage box 10.3 has two vertical limiting protrusions that cooperate with the locks 16. The outer side of the load plate 1 can abut the first positioning ring 4.3, and the outer side of the limiting plate 9 can abut the second positioning ring 4.4; the limiting plate 9 includes two curved plates and a straight plate connecting the two curved plates. The first electric push rod 5.1 is mounted on the frame; the first translation seat 5.2 has a first slide groove, and the upper ring unit also includes a first slide rail 5.7 that cooperates with the first slide groove; the second electric push rod 8.2 is mounted on the frame; the second translation seat 8.1 has a second slide groove, and the handle seat welding unit also includes a second slide rail 8.5 that cooperates with the second slide groove. Each arc-shaped groove 1.1 has a mounting blind hole 1.2, and a pressure sensing mechanism is installed in the mounting blind hole. The pressure sensing mechanism includes a second pressure sensor 17.1, a pressure plate 17.2 capable of pressing the second pressure sensor 17.1, and a movable block 17.4 connected to the pressure plate 17.2 via a spring 17.3, and the end of the movable block 17.4 is hemispherical. The multiple arc-shaped grooves 1.1 of the support plate 1 are arranged in a row with equal spacing at the storage position; the spot welding units of the first and second working positions are both located above the working lock rod, and the spot welding unit of the third working position is located below the working lock rod.

[0097] Working principle: The locking rod welding device of the present application, as shown in the figure, the locking rod of the container door includes a rod body, two first positioning rings, two second positioning rings and two lock heads. When in use, workers only need to place the rod body in each arc-shaped groove of the storage position, and place the handle seat in the first storage box and the lock head in the second storage box. Under the action of the rod driving mechanism, the inverted U-shaped frame can be lowered, so that the rod body is located in the two inverted U-shaped frames, and under the drive of the moving mechanism, the rod body can be driven to move along the supporting plate, and when the rod body moves from one arc-shaped groove to the next arc-shaped groove, since the arc-shaped groove has a second pressure sensor, the position of the rod body can be accurately sensed. When the rod body moves from the storage position to the first working position, there will be a deviation in the position of the rod body in the direction perpendicular to the supporting plate. However, at this time, since the first electric telescopic rods corresponding to the two guide rods are in a shortened state, the ends of the two guide rods in the first working position are far apart (greater than the length of the rod body, ensuring that the rod body is located between the two guide rods). Then the two first electric telescopic rods are extended, and the two guide rods support the rod body from both ends, so that the rod body is accurately positioned in the direction perpendicular to the supporting plate, and the upper ring unit can move toward the end plate when the abutment plate is in an elevated state until the pressure value of the first pressure sensor reaches the set threshold (indicating that all the first positioning rings at the guide rods are abutting each other and the first positioning ring at the end abuts the end plate). At this time, the finger cylinder clamps a first positioning ring (the second electric lifting rod descends) and puts it on the rod body. Due to the limitation of the supporting plate, the first positioning ring is loaded to the corresponding position abutting the rod body, and is spot welded using the spot welding unit to fix the first positioning ring to the rod body, and then the first translation seat retracts.

[0098] Afterwards, driven by the rod driving mechanism, the rod body moves to the second working position. At this time, due to the limitation between the two first positioning rings and the supporting plate, the distance between the rod body and the supporting plate in the vertical direction is accurate. Using the same principle, the second positioning ring is sleeved on the rod body and spot welded to fix it. At this time, the first material storage box descends, and the first clamping block at the first material storage box is loosened, so that the handle seat at the bottom end falls and abuts the rod body (and a part of the top of the handle seat at the bottom end is still located in the first material storage box, so the position of the handle seat is fixed; the first clamping block is clamped again, and at this time the first clamping block just clamps the second-to-last handle seat). The handle seat welding unit is used to complete the welding between the handle seat and the rod body. After welding is completed, the second material storage box rises.

[0099] Next, driven by the rod drive mechanism, the rod body moves to the third working position. At this point, using a similar principle to the first material storage box, the second material storage box descends, the second clamping block releases (after release, it is then clamped again, so that the next clamping clamps the second-to-last lock head). The lock head just falls into the positioning seat, and the spot welding unit is used to spot weld the lock head and the end of the rod body. After the spot welding is completed, the positioning seat descends and the second material storage box rises.

[0100] Next, driven by the rod driving mechanism, the rod body moves to the fourth working position. At this time, under the action of the upper and lower lifting mechanisms, the rod body rises and separates from the supporting plate. The clamping wheel unit and the driving wheel unit can drive the rod body to rotate. At this time, since the first positioning ring, the second positioning ring and the lock head are all spot-welded and fixed, they will rotate synchronously with the rod body. The first positioning ring, the second positioning ring and the lock head are annularly welded using the welding mechanism. After welding is completed, the rod body descends and remains in the arc-shaped groove of the supporting plate.

[0101] Then, under the driving of the rod driving mechanism, the rod body can fall from the carrying plate and fall into the material receiving container.

[0102] Although the present invention has been illustrated and described with respect to the preferred embodiments, it will be understood by those skilled in the art that various changes and modifications may be made to the present invention without departing from the scope of the present invention as defined by the claims.

Claims

1. An automatic welding device for container lock rods, characterized in that: It includes a control unit, a frame, two carrying plates and two bar rails, and a plurality of rod driving mechanisms are installed on the bar rails, and the rod driving mechanism includes a moving mechanism and an inverted U-shaped frame connected to the moving mechanism through a first electric lifting rod; the welding device has a storage position, a first working position, a second working position, a third working position and a fourth working position, each carrying plate has a plurality of arc grooves at the storage position, and has an arc groove in the first working position, the second working position, the third working position and the fourth working position respectively; the first working position has two ring storage units, two upper ring units and two spot welding units; the second working position has a handle seat feeding unit, two handle seat welding units, two ring storage units, two upper ring units, two spot welding units and two limit plates, and the limit plates have arc grooves; the third working position has two lock feeding units, two lock positioning units and two spot welding units; the fourth working position includes two sets of welding mechanisms and two rotary driving mechanisms; The storage ring unit includes an end plate and a guide rod, and the end plate has a first pressure sensor; the guide rod of the first working position is sleeved with multiple first positioning rings, and the guide rod of the second working position is sleeved with multiple second positioning rings, and the end plate at the first working position is also connected to the first electric telescopic rod; the upper ring unit includes a first electric push rod, a first translation seat, a finger cylinder, a lifting plate connected to the first translation seat through a second electric lifting rod, and two abutment plates, the spot welding unit includes a third electric lifting rod and a first welding machine; the handle seat feeding unit includes a first lifting mechanism and a first storage box connected to the first lifting mechanism through a first connecting frame, the first storage box has first through holes on both sides, and the first storage box is connected to both sides of the first L-shaped plate, and the first L-shaped plate is connected to the first clamping block through the first telescopic cylinder; the handle seat welding unit includes a second translation seat, a second electric push rod and a second welding machine connected to the second translation seat through the second electric telescopic rod; The lock feeding unit includes a second lifting mechanism, a second material storage box connected to the second lifting mechanism through a second connecting frame, the second material storage box has second through holes on both sides, and the second material storage box is connected to a second L-shaped plate on both sides, and the second L-shaped plate is connected to a second clamping block through a second telescopic cylinder; the lock positioning unit includes a third lifting mechanism and a positioning seat, and the positioning seat has a positioning groove that cooperates with the lock; the welding mechanism includes a fourth electric lifting rod, a first positioning ring welder, a fifth electric lifting rod, a second positioning ring welder, a sixth electric lifting rod and a lock welder; the rotary drive mechanism includes an upper lifting mechanism, a pressing wheel unit driven to rise and fall by the upper lifting mechanism, a lower lifting mechanism, and a driving wheel unit driven to rise and fall by the lower lifting mechanism; The plurality of handle seats in the first storage box are arranged in a row; the plurality of lock heads in the second storage box are arranged in a row; the second storage box is provided with two vertical limit protrusions that cooperate with the lock heads; The outer side of the bearing plate can abut against the first positioning ring, and the outer side of the limiting plate can abut against the second positioning ring; the limiting plate includes two arc-shaped plates and a straight plate connecting the two arc-shaped plates; The first electric push rod is mounted on the frame; the first translation seat has a first slide groove, and the upper ring unit further includes a first slide rail that cooperates with the first slide groove; the second electric push rod is mounted on the frame; the second translation seat has a second slide groove, and the handle seat welding unit further includes a second slide rail that cooperates with the second slide groove; Each arc-shaped groove has a mounting blind hole, and a pressure sensing mechanism is installed at the mounting blind hole. The pressure sensing mechanism includes a second pressure sensor, a pressure plate capable of pressing the second pressure sensor, and a movable block connected to the pressure plate through a spring, and the end of the movable block is hemispherical.

2. The container lock rod automatic welding device according to claim 1, characterized in that: The clamping wheel unit includes two clamping wheels; the driving wheel unit includes two driving wheels and a driving wheel driving mechanism for driving the two driving wheels to rotate; the first positioning ring welder, the second positioning ring welder and the locking head welder are all arc welding machines or plasma welding machines; the first welder and the second welder are both arc welding machines or plasma welding machines.

3. The container lock rod automatic welding device according to claim 1, characterized in that: The first lifting mechanism, the second lifting mechanism, the third lifting mechanism, the upper lifting mechanism and the lower lifting mechanism are all installed on the frame; the first lifting mechanism, the second lifting mechanism, the third lifting mechanism, the upper lifting mechanism and the lower lifting mechanism are all electric telescopic rods.

4. The container lock rod automatic welding device according to claim 1, characterized in that: The multiple arc grooves of the carrying plate at the storage position are distributed in a row with equal intervals; the spot welding units of the first working position and the second working position are both located above the working lock rod, and the spot welding unit of the third working position is located below the working lock rod.

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