CN107225315B

CN107225315B - Arc net piece screen welding machine

Info

Publication number: CN107225315B
Application number: CN201710545829.3A
Authority: CN
Inventors: 陈振东
Original assignee: TJK Machinery Tianjin Co Ltd
Current assignee: TJK Machinery Tianjin Co Ltd
Priority date: 2017-07-06
Filing date: 2017-07-06
Publication date: 2022-11-25
Anticipated expiration: 2037-07-06
Also published as: CN107225315A

Abstract

The invention belongs to the field of mesh welding machines, and discloses an arc-shaped mesh welding machine which comprises an arc bending device, a welding device, a mesh shearing device and a translation feeding device which are sequentially arranged along a machining direction and are all connected to a control device, wherein an end part bending welding device connected to the control device is arranged on one side of the translation feeding device, straightened longitudinal ribs are bent into an arc shape through the arc bending device and welded with straightened transverse ribs through the welding device to form a mesh, the sheared mesh is conveyed to the end part bending welding device through the translation feeding device after being sheared by the mesh shearing device, and two ends of the mesh are bent and welded through the end part bending welding device to form an arc-shaped mesh. Through the structures, the arc-shaped mesh can be continuously and automatically produced, and the arc-shaped mesh production device has the characteristics of high automation degree, high production efficiency, low labor intensity and high safety performance.

Description

Arc net piece screen welding machine

Technical Field

The invention relates to the technical field of mesh welding machines, in particular to an arc-shaped mesh welding machine.

Background

In the process of constructing the tunnel, after the circular hole is dug out by the shield tunneling machine, a plurality of arc-shaped shield segments are needed to fix the circular hole, so that a firm and safe space is provided for subsequent engineering. The shield segment is an arc shield segment concrete member with different sizes formed by anchoring and combining a shield segment steel cage and concrete. The shield segment steel cage comprises a plurality of arc-shaped shield segments 100.

Fig. 12 is a schematic view of the structure of the arc-shaped mesh sheet 100 for a single shield segment. As shown in fig. 12, in the process of manufacturing the arc-shaped mesh sheet 100 for a shield segment, it is necessary to bend a longitudinal rib 1001 to a predetermined curvature after straightening, weld a transverse rib 1002 of a certain length after straightening to the longitudinal rib 1001 at a predetermined interval, and bend and weld both ends of an inner arc reinforcement and an outer arc reinforcement of the longitudinal rib 1001, respectively.

In the prior art, the arc-shaped net piece 100 for the single shield segment is mostly produced by adopting simple production equipment or directly produced manually, the automation degree is low, the production efficiency is low, and the labor intensity is overlarge and potential safety hazards exist in a manual production mode.

Disclosure of Invention

The invention aims to provide an arc-shaped mesh welding machine which can continuously and automatically produce arc-shaped meshes and has the characteristics of high automation degree, high production efficiency, low labor intensity and high safety performance.

In order to achieve the purpose, the invention adopts the following technical scheme:

an arc mesh welding machine comprises an arc bending device, a welding device, a mesh shearing device and a translation feeding device which are sequentially arranged along a machining direction and are all connected to a control device, wherein an end part bending welding device connected to the control device is arranged on one side of the translation feeding device, straightened longitudinal ribs are bent into an arc shape through the arc bending device and are welded with straightened transverse ribs through the welding device to form a mesh, the mesh is cut through the mesh shearing device and then conveyed to the end part bending welding device through the translation feeding device, and two ends of the mesh are bent and welded through the end part bending welding device to form an arc mesh;

the curved arc device includes the curved arc base, rotate on the curved arc base and install the transmission shaft of a plurality of in bank settings, the curved arc device is still including being located curved arc base and rigid coupling and being in the epaxial gear of transmission, gear engagement has the rack, rack threaded connection has adjusting bolt, adjusting bolt only can the pivoted pass curved arc base sets up, rotates adjusting bolt, the rack removes, every along adjusting bolt equal rigid coupling has the crooked wheel seat that is located curved arc base upper end on the transmission shaft, be equipped with rotatable curved arc bending wheel on the crooked wheel seat, and every rotate on the transmission shaft install with the curved arc fixed pulley that the curved arc bending wheel cooperation was used, the vertical muscle after the aligning by the curved arc bending wheel with the curved arc fixed pulley is crooked into the arc.

Preferably, the welding device comprises a welding support, a lower electrode block and an upper electrode block which is arranged opposite to the lower electrode block are arranged in the welding support, the upper electrode block is driven by a welding cylinder arranged on the welding support to move, the upper electrode block and the lower electrode block are both connected with a transformer, and a longitudinal rib bent by the arc bending device is conveyed between the upper electrode block and the lower electrode block;

still be equipped with horizontal muscle on the welding stent and send a cylinder, horizontal muscle send a cylinder output to be connected with relative and the elastic splint of establishing from top to bottom, horizontal muscle after the aligning is tight through elastic splint clamp to send a cylinder by horizontal muscle to carry supreme electrode block and down between the electrode block, and arrange in the top of indulging the muscle.

Preferably, the welding device further comprises a transverse rib cutting cylinder and a transverse rib material receiving cylinder which are both mounted on the welding support, the output end of the transverse rib cutting cylinder is connected with a cutter, and the straightened transverse rib is clamped by the transverse rib material receiving cylinder and is driven by the transverse rib cutting cylinder to cut off.

Preferably, the net shearing device comprises a net shearing support, a driving motor installed on the net shearing support, and a long shaft which is rotatably arranged on the net shearing support and is driven by the driving motor to rotate, two ends of the long shaft are connected with connecting rods through eccentric structures, the connecting rods are driven by the long shaft to move up and down, a net piece cutter is arranged between the two connecting rods, and a fixed cutter installed on the net shearing support is correspondingly arranged below the net piece cutter.

Preferably, the translational feeding device comprises a first arc-shaped rail, a first translational support movably arranged on the first arc-shaped rail, a first walking driving device installed on the first translational support and driving the first translational support to move, a translational feeding driving device arranged on the first translational support, a second translational support driven by the translational feeding driving device to move, at least one lifting cylinder arranged on the second translational support, a support plate driven by the lifting cylinder, a first clamping cylinder arranged below the support plate and having an output end connected with a clamping block, wherein the clamping block penetrates through the support plate and is driven by the first clamping cylinder to clamp the welded mesh.

Preferably, the end bending welding device comprises a second arc-shaped rail and two bending welding devices, each bending welding device comprises a movable walking support arranged on the second arc-shaped rail, a second walking driving device arranged on the walking support and used for driving the walking support to move, a horizontal cylinder arranged on the walking support, a horizontal frame plate driven by the horizontal cylinder, a bending lifting cylinder arranged below the horizontal frame plate and with an output end penetrating through the horizontal frame plate, a bending device driven by the bending lifting cylinder to lift, a second clamping cylinder corresponding to the bending device, and a welding gun arranged on the walking support and adjustable in position, wherein the two ends of the net piece are bent by the bending devices and are welded by the welding gun.

Preferably, the steel bar bending and straightening machine further comprises a longitudinal bar pay-off device, a longitudinal bar straightening device, a longitudinal bar threading device and a longitudinal bar feeding device which are sequentially arranged along the machining direction, wherein the longitudinal bar feeding device is arranged on one side of the arc bending device, and a longitudinal bar passes through the longitudinal bar pay-off device and is straightened by the longitudinal bar straightening device, threaded by the longitudinal bar threading device and conveyed to the arc bending device by the longitudinal bar feeding device after being paid off by the longitudinal bar pay-off device.

Preferably, the device further comprises a transverse rib pay-off device, a first transverse rib vertical straightening device, a transverse rib feeding device, a second transverse rib vertical straightening device and a transverse rib horizontal straightening device which are sequentially arranged in the transverse rib conveying direction, wherein the transverse rib horizontal straightening device is arranged on one side of the welding device.

According to the invention, through the structures, the straightened longitudinal ribs are bent into an arc shape through the arc bending device and are welded with the straightened transverse ribs into the net piece through the welding device, the net piece is cut by the net cutting device and then is conveyed to the end part bending and welding device through the translation feeding device, and the two ends of the net piece are bent and welded through the end part bending and welding device to form the arc net piece. The invention can continuously and automatically produce the arc-shaped mesh, and has the characteristics of high automation degree, high production efficiency, low labor intensity and high safety performance.

Drawings

FIG. 1 is a front view of an arc mesh welding machine of the present invention;

FIG. 2 is a top view of the arc net welding machine of the present invention;

FIG. 3 is a front view of the arc bending apparatus of the present invention;

FIG. 4 is a top view of the arc bending apparatus of the present invention;

FIG. 5 isbase:Sub>A cross-sectional view A-A of FIG. 4 of the present invention;

FIG. 6 is a front view of the welding apparatus of the present invention;

FIG. 7 is an enlarged view taken at I of FIG. 2 according to the present invention;

fig. 8 is a front view of the net cutting device of the present invention;

FIG. 9 is a front view of the translatory feed device of the present invention;

FIG. 10 is an enlarged view of the invention at point II of FIG. 2;

FIG. 11 is a front view of the end bend welding apparatus of the present invention;

FIG. 12 is a schematic view of a prior art curved mesh of the present invention.

In the figure:

1. a longitudinal bar paying-off device; 2. a longitudinal bar straightening device; 3. a longitudinal bar threading device; 4. a longitudinal bar feeding device; 5. an arc bending device; 6. a welding device; 7. a net shearing device; 8. a translation feeding device; 9. an end portion bending welding device; 10. a transverse bar paying-off device; 11. a first transverse bar vertical straightening device; 12. a transverse bar feeding device; 13. a second transverse bar vertical straightening device; 14. a horizontal rib straightening device;

51. a curved base; 52. a drive shaft; 53. a bending wheel seat; 54. a curved bending wheel; 55. a curved arc fixed wheel; 56. a gear; 57. a rack; 58. adjusting the bolt; 59. a nut; 50. a cylindrical pin;

61. welding a bracket; 62. an upper electrode block; 63. a lower electrode block; 64. a transformer; 65. welding the cylinder; 66. a transverse rib wire feeding cylinder; 67. a transverse rib cutting cylinder; 68. the transverse bar receiving cylinder; 69. a cutter; 60. an elastic splint;

71. cutting a net support; 72. a drive motor; 73. a long axis; 74. a connecting rod; 75. a mesh cutter; 76. fixing a knife;

81. a first arcuate track; 82. a first translating carriage; 83. a first travel drive device; 84. a translation feeding device; 85. a second translating carriage; 86. a lifting cylinder; 87. a support plate; 88. a first clamping cylinder; 89. a clamping block;

91. a second arcuate track; 92. a traveling bracket; 93. a second travel drive; 94. a horizontal cylinder; 95. a horizontal shelf plate; 96. a bending lifting cylinder; 97. a bending device; 98. a second clamping cylinder; 99. a welding gun; 90. a welding gun adjusting device; 971. bending the frame body; 972. a bending motor; 973. a bending wheel; 974. a fixed wheel;

100. an arc-shaped net sheet; 1001. longitudinal ribs; 1002. and transverse ribs.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

The invention provides an arc-shaped mesh welding machine, which comprises a longitudinal rib pay-off device 1, a longitudinal rib straightening device 2, a longitudinal rib wire passing device 3, a longitudinal rib feeding device 4, an arc bending device 5, a welding device 6, a mesh cutting device 7 and a translation feeding device 8 which are sequentially arranged along a processing direction, a transverse rib pay-off device 10, a first transverse rib vertical straightening device 11, a transverse rib feeding device 12, a second transverse rib vertical straightening device 13 and a transverse rib horizontal straightening device 14 which are sequentially arranged at one side of the welding device 6 along a transverse rib conveying direction, wherein the transverse rib horizontal straightening device 14 is arranged at one side of the welding device 6, as shown in figures 1-11. An end bending welding device 9 connected to the control device is arranged on one side of the translation feeding device 8.

In this embodiment, the longitudinal rib straightening device 2, the longitudinal rib threading device 3, the longitudinal rib feeding device 4, the arc bending device 5, the welding device 6, the net cutting device 7, the translation feeding device 8, the end bending welding device 9, and the transverse rib feeding device 12 are all connected to a control device (not shown in the figure).

When the arc-shaped net piece is processed, four longitudinal bars on the longitudinal bar pay-off device 1 are straightened by the longitudinal bar straightening device 2, are passed by the longitudinal bar thread passing device 3, are conveyed to the arc bending device 5 by the longitudinal bar feeding device 4, are bent into an arc shape by the arc bending device 5 and are conveyed to the welding device 6 by hand;

meanwhile, one transverse bar on the transverse bar pay-off device 10 is manually and sequentially subjected to primary straightening by a first transverse bar vertical straightening device 11, forward feeding by a transverse bar feeding device 12, secondary straightening by a second transverse bar vertical straightening device 13 and secondary straightening by a transverse bar horizontal straightening device 14, and then conveyed to the welding device 6;

then, the arc-shaped longitudinal ribs and the arc-shaped transverse ribs are welded by the welding device 6, are cut by the net cutting device 7 and then are conveyed to the end part bending welding device 9 by the translation feeding device 8, and the two end heads of the net piece inner arc reinforcing steel bars and the net piece outer arc reinforcing steel bars are bent and welded by the end part bending welding device 9 to form the arc-shaped net piece.

Through the mode, the arc-shaped mesh welding machine disclosed by the invention can be used for continuously and automatically producing arc-shaped meshes and has the characteristics of high automation degree, high production efficiency, low labor intensity and high safety performance.

In this embodiment, the longitudinal bar paying-off device 1, the longitudinal bar straightening device 2, the longitudinal bar threading device 3, the longitudinal bar feeding device 4, the transverse bar paying-off device 10, the first transverse bar vertical straightening device 11, the transverse bar feeding device 12, the second transverse bar vertical straightening device 13, and the transverse bar horizontal straightening device 14 are all devices used in the prior art, and therefore the structures thereof are not described again.

In this embodiment, as shown in fig. 3 to 5, the arc bending apparatus 5 includes an arc bending base 51, a plurality of transmission shafts 52 arranged in a row are rotatably mounted on the arc bending base 51, a bending wheel seat 53 located at an upper end of the arc bending base 51 is fixedly connected to each transmission shaft 52, an arc bending wheel 54 capable of rotating around its axis is disposed on the bending wheel seat 53, and an axis of the arc bending wheel 54 is parallel to an axis of the transmission shaft 52. A fixed curved wheel 55 is also coaxially and rotatably mounted on each transmission shaft 52, and the fixed curved wheel 55 is positioned above the curved wheel seat 53 and is used with the curved wheel 54. The straightened longitudinal bar conveyed by the longitudinal bar feeding device 4 passes through a gap between the curved bending wheel 54 and the curved fixing wheel 55 and is bent into an arc-shaped structure.

Further, in order to bend the longitudinal bar into different arc shapes to meet the requirements of different arc structures, in this embodiment, a gear 56 disposed in the curved base 51 is fixedly connected to each transmission shaft 52, the gear 56 is engaged with a rack 57 movable in the curved base 51, the rack 57 is in threaded connection with an adjusting bolt 58, the adjusting bolt 58 is rotatably disposed through the curved base 51, specifically, a through hole is disposed in the curved base 51, the adjusting bolt 58 passes through the through hole and is rotatable, one side of the through hole located in the curved base is connected to the adjusting bolt 58, a nut 59 is connected to the adjusting bolt 58, and the nut 59 and the adjusting bolt 58 are fixedly connected through a cylindrical pin 50, that is, the nut 59 and the nut of the adjusting bolt 58 can limit the axial movement of the adjusting bolt 58, so that the adjusting bolt 58 can only rotate. Through screwing and rotating the adjusting bolt 58, the rack 57 can move along the adjusting bolt 58, and then the rack 57 drives the gear 56 to rotate, the gear 56 drives the transmission shaft 52 to rotate, the transmission shaft 52 drives the bending wheel seat 53 and the bending wheel 54 to rotate for a certain angle, through the rotation of the plurality of transmission shafts 52, the bending wheel seats 53 and the bending wheel 54 driven by the plurality of transmission shafts 52 can rotate for the same or different angles, so that the bending wheels 54 reach the optimal working positions, and the adjustment of the bending radian of the longitudinal ribs is realized.

In this embodiment, the gears 56 on two adjacent transmission shafts 52 are staggered up and down, so as to reserve a moving space for the racks 57 and avoid interference between adjacent racks 57 during moving.

In this embodiment, referring to fig. 6 and 7, the welding device 6 includes a welding support 61, a lower electrode block 62 and an upper electrode block 63 disposed opposite to the lower electrode block 62 are disposed in the welding support 61, the upper electrode block 63 and the lower electrode block 62 are both connected to a transformer 64, the upper electrode block 63 is driven by a welding cylinder 65 mounted on the welding support 61 to move, and a longitudinal rib bent by the arc bending device 5 is conveyed between the upper electrode block 63 and the lower electrode block 62.

Still be equipped with horizontal muscle on welding stent 61 and send a cylinder 66, horizontal muscle to cut off cylinder 67 and horizontal muscle to connect material cylinder 68, wherein above-mentioned horizontal muscle connects material cylinder 68 to be die clamping cylinder, and it sets up on welding stent 61 and corresponds horizontal muscle transport position for clamp operation is carried out to horizontal muscle that horizontal muscle horizontal straightening device 14 straightened was carried, promptly after horizontal muscle reachs the material receiving position, horizontal muscle connects material cylinder 68 to press from both sides the horizontal muscle tightly.

The transverse rib cutting cylinder 67 is arranged on one side of the welding bracket 61 close to the transverse rib horizontal straightening device 14, the output end of the transverse rib cutting cylinder is connected with the cutter 69, and after the transverse rib conveyed by the transverse rib horizontal straightening device 14 in a straightening mode is clamped by the transverse rib receiving cylinder 68, the transverse rib cutting cylinder 67 can drive the cutter 69 to move to cut the transverse rib.

The transverse rib wire feeding cylinder 66 is arranged on the welding support 61, the output end of the transverse rib wire feeding cylinder 66 is connected with the elastic clamping plate 60 which is arranged up and down relatively, after the transverse rib is cut off by the cutter 69, the transverse rib wire feeding cylinder 66 drives the elastic clamping plate 60 to clamp the transverse rib tightly, the transverse rib material receiving cylinder 68 loosens the transverse rib, the transverse rib wire feeding cylinder 66 drives the elastic clamping plate 60 to convey the transverse rib to the upper electrode block 63 and the lower electrode block 62, and the transverse rib wire feeding cylinder is arranged above the longitudinal rib.

After the horizontal rib is sent to the upper part of the vertical rib, the welding cylinder 65 drives the upper electrode block 63 to move downwards and compress the vertical rib and the horizontal rib together with the lower electrode block 62, and then the upper electrode block 63 and the lower electrode block 62 are electrified to weld the horizontal rib on the arc-shaped vertical rib. And then the welding device 6 circulates the operation to weld the next transverse rib to form the arc-shaped mesh.

After the arc-shaped mesh reaches the set length, the arc-shaped mesh needs to be cut by the mesh cutting device 7, specifically, as shown in fig. 8, the mesh cutting device 7 includes a mesh cutting support 71, a driving motor 72 is installed on the mesh cutting support 71, the driving motor 72 is connected with a long shaft 73 through a transmission mechanism (such as a belt or a chain), the long shaft 73 is arranged on the mesh cutting support 71 and is driven to rotate by the driving motor 72, two ends of the long shaft 73 are connected with connecting rods 74 through eccentric structures (not shown in the figure), a mesh cutter 75 moving up and down along with the connecting rods 74 is fixed between the two connecting rods 74, a fixed cutter 76 installed on the mesh cutting support 71 is correspondingly arranged below the mesh cutter 75, and the position to be cut of the arc-shaped mesh is placed between the cutter mesh 75 and the fixed cutter 76. Due to the eccentric structure, when the long shaft 73 rotates, the connecting rod 74 can be driven to move up and down, the mesh cutting knife 75 is further driven to be far away from or close to the fixed knife 76, and the arc mesh is cut into the arc mesh with the set length through the matching of the mesh cutting knife 75 and the fixed knife 76.

In this embodiment, as shown in fig. 9 and 10, the translational feeding device 8 includes a first arc-shaped rail 81, a first translational support 82, a first travel driving device 83, a translational feeding driving device 84, a second translational support 85, a lifting cylinder 86, a support plate 87, a first clamping cylinder 88, and a clamping block 89, wherein:

the first translating bracket 82 is movably arranged on the first arc-shaped track 81, the first translating bracket 82 is provided with a first traveling driving device 83 for driving the first translating bracket 82 to move, specifically, the first traveling driving device 83 can be a motor and a gear-rack structure, that is, the first arc-shaped track 81 is provided with an arc-shaped rack, the output end of the motor is connected with a gear meshed with the rack, and the first translating bracket 82 can be driven to travel along the arc-shaped rack by the rotation of the motor.

A translational feed driving device 84 is mounted on the first translational support 82, the translational feed driving device 84 is in driving connection with a second translational support 85, and specifically, the translational feed driving device 84 may be a structure in which a motor drives a lead screw, the second translational support 85 is in threaded connection with the lead screw, then the motor drives the lead screw, and finally the second translational support 85 is driven to move on the first translational support 82. In this embodiment, the moving direction of the second translational support 85 coincides with the radial direction of the arc track along which the first translational support 82 moves.

At least one lifting cylinder 86 is arranged on the second translation bracket 85, two lifting cylinders 86 are arranged in the embodiment, the output ends of the two lifting cylinders 86 are connected to a support plate 87, four first clamping cylinders 88 are arranged below the support plate 87, a clamping block 89 is connected to the output end of each first clamping cylinder 88, the clamping block 89 penetrates through the support plate 87, and the welded mesh is driven to be clamped by the first clamping cylinders 88.

In this embodiment, when the arc-shaped mesh sheet reaches the set length and needs to be cut by the mesh cutting device 7, the first travel driving device 83 drives each component thereon to move along the first arc-shaped track 81, and the support plate 87 is placed at the middle position of the arc-shaped mesh sheet, then the lifting cylinder 86 raises the support plate 87 until the arc-shaped mesh sheet is placed between the clamping blocks 89, then the first clamping cylinder 88 retracts to drive the clamping blocks 89 to clamp the longitudinal ribs of the arc-shaped mesh sheet, so as to position the arc-shaped mesh sheet, and then the mesh cutting device 7 cuts the arc-shaped mesh sheet. After the cutting is finished, the translational feeding device 8 moves the cut arc-shaped mesh sheet to the front of the end bending and welding device 9, then the translational feeding driving device 84 drives the second translational bracket 85, the parts on the second translational bracket 85 and the cut arc-shaped mesh sheet to move to the end bending and welding device 9, and the end bending and welding device 9 bends and welds the end.

As shown in fig. 10 and 11, the end portion bending and welding device 9 includes a second arc-shaped rail 91 and two bending and welding devices, each of which includes a traveling bracket 92, a second traveling driving device 93, a horizontal cylinder 94, a horizontal frame plate 95, a bending and lifting cylinder 96, a bending device 97, a second clamping cylinder 98, and a welding gun 99, wherein:

the second arc-shaped track 91 is movably provided with a traveling support 92, the traveling support 92 is provided with a second traveling driving device 93 for driving the traveling support 92 to move, the second traveling driving device 93 can be a motor and a gear-rack structure, namely, the second arc-shaped track 91 is provided with an arc-shaped rack, the output end of the motor is connected with a gear meshed with the arc-shaped rack, and the traveling support 92 can be driven to travel along the arc-shaped rack through the rotation of the motor.

A horizontal cylinder 94 is mounted on the walking bracket 92, the horizontal cylinder 94 is in driving connection with a horizontal frame plate 95, a bending lifting cylinder 96 with an output end penetrating through the horizontal frame plate 95 is arranged below the horizontal frame plate 95, the output end of the bending lifting cylinder 96 is connected with a bending device 97, the bending device 97 is used for bending the inner arc steel bars and the outer arc steel bars of the arc-shaped mesh sheet, and then the inner arc steel bars and the outer arc steel bars are welded by a welding gun 99 on the walking bracket 92 to form the finally formed arc-shaped mesh sheet.

In this embodiment, the bending apparatus 97 includes a bending frame body 971 connected to the bending lifting cylinder 96, a bending motor 972 installed in the bending frame body 971, a rotating bending wheel 973 driven by the bending motor 972 and a fixing wheel 974 fixed on the bending frame body 971, and both the inner arc steel bar and the outer arc steel bar of the arc mesh sheet can be placed on the fixing wheel 974 and are bent by the bending wheel 973. In this embodiment, before bending the inner arc steel bars and the outer arc steel bars, the arc mesh needs to be clamped by the second clamping cylinder 98, so that the inner arc steel bars and the outer arc steel bars are more stably bent, and the second clamping cylinder 98 is arranged on the bending frame body 971.

After the inner arc reinforcing steel bars and the outer arc reinforcing steel bars of the arc-shaped mesh are bent, the welding torch 99 is used for welding the arc-shaped mesh, in this embodiment, the welding torch 99 is installed on the traveling bracket 92, specifically, the welding torch adjusting device 90 is installed on the traveling bracket 92, and the welding torch 99 is installed on the welding torch adjusting device 90. In this embodiment, the welding gun adjusting device 90 is a common three-axis driving structure in the prior art, and is mainly used for driving the welding gun 99 to move in three directions of X, Y, and Z, so as to adjust the position of the welding gun 99.

When the translational feeding device 8 moves the cut arc-shaped mesh sheet to the position right above the second arc-shaped track 91, namely the working position of the end bending welding device 9, the first clamping cylinder 88 of the translational feeding device 8 extends out and drives the clamping block 89 to loosen the arc-shaped mesh sheet, and then the translational feeding device 8 drives the second translation bracket 85 and the components thereon to return to the initial position.

Then, the bending lifting cylinders 96 of the two bending welding devices drive the bending devices 97 and the second clamping cylinders 98 to ascend, the inner arc steel bars of the arc-shaped net piece are placed on the fixing wheels 974 of the bending devices 97, then the second clamping cylinders 98 clamp the two ends of the arc-shaped net piece, and the bending motors 972 are started and drive the bending wheels 973 to bend the inner arc steel bars.

When the bending of the inner arc steel bars is finished, the second clamping cylinder 98 retracts, and the bending lifting cylinder 96 retracts, and drives the bending device 97 and the second clamping cylinder 98 to return to the original position. Horizontal cylinder 94 stretches out this moment and drives above-mentioned crooked lift cylinder 96, bending apparatus 97 and second die clamping cylinder 98 remove to the outer arc reinforcing bar position department of arc net piece, and make bending motor 972 and drive bending wheel 973 and be located the initial position department of crooked outer arc reinforcing bar, crooked lift cylinder 96 drives bending apparatus 97 and second die clamping cylinder 98 and rises, and the outer arc reinforcing bar of arc net piece is placed in on bending apparatus 97's fixed pulley 974, second die clamping cylinder 98 presss from both sides the both ends of arc net piece tightly afterwards, start bending motor 972 and drive bending wheel 973 and carry out the bending to the outer arc reinforcing bar.

After the inner-arc steel bars and the outer-arc steel bars are bent, the position of the welding gun 99 is adjusted to the welding position of the arc-shaped mesh through the welding gun adjusting device 90, and welding is performed. After welding, the second clamping cylinder 98 retracts, the bending lifting cylinder 96 retracts and drives the bending device 97 and the second clamping cylinder 98 to return to the original position, production of a single arc-shaped net piece is completed, the arc-shaped net piece is taken away, and production of the next arc-shaped net piece is continued.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The arc-shaped mesh welding machine is characterized by comprising an arc bending device (5), a welding device (6), a mesh shearing device (7) and a translation feeding device (8) which are sequentially arranged along a machining direction and are all connected to a control device, wherein an end part bending welding device (9) connected to the control device is arranged on one side of the translation feeding device (8), straightened longitudinal ribs are bent into an arc shape through the arc bending device (5) and welded with straightened transverse ribs through the welding device (6) to form a mesh, the sheared mesh is conveyed to the end part bending welding device (9) through the translation feeding device (8) after being sheared through the mesh shearing device (7), and two ends of the mesh are bent and welded through the end part bending welding device (9) to form the arc-shaped mesh;

the bending device (5) comprises a bending base (51), a plurality of transmission shafts (52) arranged in rows are rotatably mounted on the bending base (51), the bending device (5) further comprises gears (56) which are located in the bending base (51) and fixedly connected to the transmission shafts (52), the gears (56) are meshed with racks (57), the racks (57) are in threaded connection with adjusting bolts (58), the adjusting bolts (58) only can rotatably penetrate through the bending base (51) and rotate the adjusting bolts (58), the racks (57) move along the adjusting bolts (58), each transmission shaft (52) is fixedly connected with a bending wheel seat (53) located at the upper end of the bending base (51), rotatable bending wheels (54) are arranged on the bending wheel seats (53), each transmission shaft (52) is rotatably mounted with a bending fixed wheel (55) matched with the corresponding bending wheel (54), and longitudinal ribs after being straightened are bent into arc-shaped bending wheels (54) and arc-shaped fixed wheels (55);

the translational feeding device (8) comprises a first arc-shaped rail (81), a first translational support (82) movably arranged on the first arc-shaped rail (81), a first walking driving device (83) installed on the first translational support (82) and driving the first translational support (82) to move, a translational feeding driving device (84) arranged on the first translational support (82), a second translational support (85) driven by the translational feeding driving device (84) to move, at least one lifting cylinder (86) arranged on the second translational support (85), a support plate (87) driven by the lifting cylinder (86), a first clamping cylinder (88) arranged below the support plate (87) and connected with a clamping block (89) at the output end, wherein the clamping block (89) penetrates through the support plate (87) and is driven by the first clamping cylinder (88) to clamp a welded mesh.

2. The arc-shaped mesh welding machine according to claim 1, characterized in that the welding device (6) comprises a welding support (61), a lower electrode block (62) and an upper electrode block (63) opposite to the lower electrode block (62) are arranged in the welding support (61), the upper electrode block (63) is driven to move by a welding cylinder (65) arranged on the welding support (61), the upper electrode block (63) and the lower electrode block (62) are both connected with a transformer (64), and a longitudinal rib bent by the arc bending device (5) is conveyed between the upper electrode block (63) and the lower electrode block (62);

still be equipped with horizontal muscle on welding stent (61) and send a cylinder (66), horizontal muscle send a cylinder (66) output to be connected with relative about and elastic splint (60) of establishing, horizontal muscle after the aligning is tight through elastic splint (60) clamp to send a cylinder (66) to carry to supreme electrode piece (63) and down between electrode piece (62) by horizontal muscle, and arrange in the top of indulging the muscle.

3. The arc-shaped mesh welding machine according to claim 2, characterized in that the welding device (6) further comprises a transverse rib cutting cylinder (67) and a transverse rib receiving cylinder (68) which are both arranged on the welding bracket (61), the output end of the transverse rib cutting cylinder (67) is connected with a cutter (69), and the cutter (69) is driven by the transverse rib cutting cylinder (67) to cut off the straightened transverse rib after the straightened transverse rib is clamped by the transverse rib receiving cylinder (68).

4. The arc-shaped mesh welding machine according to claim 1, characterized in that the mesh cutting device (7) comprises a mesh cutting support (71), a driving motor (72) installed on the mesh cutting support (71), and a long shaft (73) rotatably installed on the mesh cutting support (71) and driven by the driving motor (72) to rotate, wherein two ends of the long shaft (73) are connected with connecting rods (74) through eccentric structures, the connecting rods (74) are driven by the long shaft (73) to move up and down, a mesh cutter (75) is arranged between the two connecting rods (74), and a fixed cutter (76) installed on the mesh cutting support (71) is correspondingly arranged below the mesh cutter (75).

5. The arc-shaped mesh welding machine according to claim 1, wherein the end portion bending welding device (9) comprises a second arc-shaped rail (91) and two bending welding devices, the bending welding devices comprise two traveling supports (92) movably disposed on the second arc-shaped rail (91), a second traveling driving device (93) mounted on the traveling supports (92) and driving the traveling supports (92) to move, a horizontal cylinder (94) mounted on the traveling supports (92), a horizontal frame plate (95) driven by the horizontal cylinder (94), a bending lift cylinder (96) disposed below the horizontal frame plate (95) and having an output end penetrating through the horizontal frame plate (95), a bending device (97) driven to lift by the bending lift cylinder (96), a second clamping cylinder (98) disposed corresponding to the bending device (97), and a welding gun (99) mounted on the traveling supports (92) and having an adjustable position, and both ends of the mesh are bent by the bending device (97) and are welded by the welding gun (99).

6. The arc-shaped mesh welding machine according to claim 1, further comprising a longitudinal rib pay-off device (1), a longitudinal rib straightening device (2), a longitudinal rib wire passing device (3) and a longitudinal rib feeding device (4) which are sequentially arranged along the machining direction, wherein the longitudinal rib feeding device (4) is arranged on one side of the arc bending device (5), and after being paid off by the longitudinal rib pay-off device (1), longitudinal ribs are straightened by the longitudinal rib straightening device (2), passed through the longitudinal rib wire passing device (3) and conveyed to the arc bending device (5) by the longitudinal rib feeding device (4).

7. The arc-shaped mesh welding machine according to claim 1, further comprising a transverse rib pay-off device (10), a first transverse rib vertical straightening device (11), a transverse rib feeding device (12), a second transverse rib vertical straightening device (13) and a transverse rib horizontal straightening device (14) which are sequentially arranged in the transverse rib conveying direction, wherein the transverse rib horizontal straightening device (14) is arranged on one side of the welding device (6).