CN216398703U - Tower machine is with cat ladder protective shroud production line - Google Patents

Abstract

The utility model discloses a ladder stand retainer production line for a tower crane, which belongs to the field of tower crane part processing equipment and comprises a stamping workbench, an unpowered steel coil rack, a steel coil straightening wheel set, a punch press and a forming integrated machine, wherein the unpowered steel coil rack, the steel coil straightening wheel set and the punch press are sequentially arranged on the stamping workbench from right to left, and the forming integrated machine is arranged at the left end of the stamping workbench; the forming integrated machine comprises a feeding assembly, a cutting assembly, a vertical moving pneumatic claw assembly, an upper bending assembly, a lower bending assembly and a horizontal moving bending workbench assembly. Through the all-in-one mode, the guard ring straightening, punching, looping and bending processes are executed in an assembly line mode, the forming and processing efficiency and quality of the guard ring are improved, the integrated production line device is suitable for processing guard rings with different bending radiuses, different punching diameters and different thicknesses, integrated production line production is realized, the production efficiency is improved, the number of devices is reduced, the purposes of high production efficiency, wide applicability, simplicity in operation and easiness in parameter adjustment are realized, and the personnel requirements are reduced.

Description

Tower machine is with cat ladder protective shroud production line

Technical Field

The utility model relates to the field of tower crane part processing equipment, in particular to a ladder stand guard ring production line for a tower crane.

Background

The original processing mode is as follows: plate shearing and blanking → punching → bending, which is divided into three different procedures, and the three procedures are respectively processed by using a special bending and forming die matched with a hydraulic plate shearing machine, a punch press and a hydraulic press. The defects of the processing flow of the existing guard ring production equipment are as follows: (1) the distribution positions of blanking and machining equipment are not concentrated, the equipment occupies more land, and the transfer time and cost are increased; (2) a special profiling mold is needed, the structure is complex, and the cost is high; (3) the bending forming size can not be freely adjusted; (4) the large-tonnage hydraulic press is used, so that the energy consumption is high and the equipment cost is high; (5) manual feeding and transferring are needed, and working hours are increased; (6) different stations require different operators, and the technical requirements on the operators are high. Therefore, a special production line for the ladder stand guard ring for the tower crane needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a ladder stand guard ring production line for a tower crane, which solves the technical problems in the background technology. The equipment adopts a production line mode, and achieves the purposes of compact occupied area, high processing efficiency, easy control and adjustment of size and reduction of transfer working hours and manpower requirements.

A ladder stand guard ring production line for a tower crane comprises a stamping workbench, an unpowered steel coil material rack, a steel coil straightening wheel set, a punch press and a forming integrated machine, wherein the unpowered steel coil material rack, the steel coil straightening wheel set and the punch press are sequentially arranged on the stamping workbench from right to left, the forming integrated machine is arranged at the left end of the stamping workbench, and a punching die is arranged on the punch press;

the forming integrated machine comprises a vertical fixing plate, a feeding assembly, a cutting assembly, a vertical moving air claw assembly, an upper bending assembly, a lower bending assembly and a horizontal moving bending workbench assembly, wherein the cutting assembly is arranged at the left end of the upper portion of the vertical fixing plate, the feeding assembly is arranged at the right end of the cutting assembly, the horizontal moving bending workbench assembly is arranged below the feeding assembly, and the vertical moving air claw assembly is arranged at the left end of the horizontal moving bending workbench assembly. The upper bending assembly and the lower bending assembly are arranged on the horizontal moving bending workbench assembly and are arranged at the right end of the vertical moving pneumatic claw assembly.

Further, the steel coil straightening wheel group comprises a horizontal straightening wheel cushion block, a hand screw, a first hexagon nut, a first shaft check ring, a horizontal straightening wheel positioning plate, horizontal straightening wheel two-end positioning blocks, a horizontal straightening wheel sliding seat, an H-groove bearing, a horizontal straightening wheel central positioning block, a vertical straightening wheel upper positioning plate, a vertical straightening wheel central positioning block, a vertical straightening wheel sliding seat, vertical straightening wheel two-end positioning blocks, a vertical straightening wheel bottom positioning block, a rolling bearing, a flat washer and a screw, wherein the horizontal straightening wheel two-end positioning blocks are fixed on the horizontal straightening wheel cushion block, the horizontal straightening wheel positioning plates are fixed at two ends of the horizontal straightening wheel two-end positioning block and the horizontal straightening wheel central positioning block, a sliding groove is arranged between the horizontal straightening wheel two-end positioning blocks and the horizontal straightening wheel central positioning block, and a sliding groove is arranged between the horizontal straightening wheel central positioning block and the horizontal straightening wheel central positioning block, two horizontal straightening wheel slide seats are arranged in the slide grooves and can be arranged in a sliding manner, H-groove bearings are arranged on the horizontal straightening wheel slide seats, hand screws are arranged on the side edges of the horizontal straightening wheel positioning plates and penetrate through the horizontal straightening wheel positioning plates to be in contact with the horizontal straightening wheel slide seats, first hexagonal nuts and first shaft check rings are arranged on the hand screws, vertical straightening wheel two-end positioning blocks and vertical straightening wheel central positioning blocks are arranged at the tops of the vertical straightening wheel bottom positioning blocks, the vertical straightening wheel slide seats are transversely arranged between the vertical straightening wheel two-end positioning blocks and the vertical straightening wheel central positioning blocks, the vertical straightening wheel central positioning blocks and the vertical straightening wheel central positioning blocks, vertical straightening wheel upper positioning plates are fixed at the tops of the vertical straightening wheel two-end positioning blocks and the vertical straightening wheel central positioning blocks, and the hand screws penetrate through the vertical straightening wheel upper positioning plates to be in contact with the vertical straightening wheel slide seats, the vertical straightening wheel bearings are arranged into an upper row and a lower row, the vertical straightening wheel bearing arranged on the upper row is arranged between the two vertical straightening wheel bearings arranged on the lower row, the rolling bearing is arranged on the vertical straightening wheel sliding seat, and the outer end of the rolling bearing is provided with a flat washer and a screw.

Further, the cutting assembly comprises an oil cylinder, a cutter, the cutter is arranged at the lower end of the oil cylinder, the oil cylinder is arranged on a vertical fixing plate, the feeding assembly comprises a lower roller, an upper roller, a vertical groove, a bending wheel and an arc groove, the arc groove and the vertical groove are formed in the vertical fixing plate, the oil cylinder is slidably arranged on the arc groove, the bending wheel is slidably arranged on the vertical groove, the right end of the oil cylinder is arranged, the lower roller is arranged below the upper roller, the lower roller and the upper roller are both fixed on the vertical fixing plate, and the axis of each group of lower roller and upper roller is arranged on the same vertical plane.

Further, the guard ring forming mechanism comprises a vertical moving pneumatic claw assembly, a horizontal moving bending positioning plate assembly and a bending workbench assembly, the bending workbench assembly is fixed on a vertical fixing plate, the vertical moving pneumatic claw assembly is arranged at the left end of the bending workbench assembly, the vertical moving pneumatic claw assembly comprises a pneumatic claw positioning plate, 180-degree opening and closing pneumatic claws, screws, chucks, a connecting block, a floating joint, a sliding block and a cushion block for a linear guide rail, the two 180-degree opening and closing pneumatic claws are arranged at two ends of the pneumatic claw positioning plate, the two chucks are connected with the 180-degree opening and closing pneumatic claws through the screws, the connecting block is arranged at the inner side of the pneumatic claw positioning plate and is fixedly connected through the screws, the floating joint is connected to a threaded hole of the connecting block, the sliding block and the cushion block for the linear guide rail are connected to a counter bore of the pneumatic claw positioning plate through the screws, the bending workbench assembly comprises a bending workbench plate, and a flange linear bearing is arranged on the bending workbench plate, The device comprises a linear guide rail and a cylinder mounting seat, wherein a cylinder is arranged on the cylinder mounting seat, hexagonal pillars are arranged on two sides of the rear end of a bending working table plate, and a multi-position fixing cylinder with adjustable size is arranged in the middle of the rear end of the bending working table plate.

Furthermore, a horizontally moving bending positioning plate component is also arranged on the vertical fixing plate and fixedly connected with a piston rod with adjustable size and multi-position fixation, the horizontally moving bending positioning plate component comprises a bending positioning plate, the bottom of the left end of the bending positioning plate is provided with a lower bending fixture block at the lower end of a large protection ring, an upper bending fixture block at the lower end of the large protection ring is arranged on the upper side of the lower bending fixture block at the lower end of the large protection ring, a grooved pin shaft is arranged on the right side of the upper bending fixture block at the lower end of the large protection ring, a lower bending fixture block at the lower end of a small protection ring is arranged in the middle of the left end of the bending positioning plate, an upper bending fixture block at the lower end of the small protection ring is arranged above the lower bending fixture block at the lower end of the small protection ring, a grooved pin shaft is arranged on the right side of the upper bending fixture block at the lower end of the small protection ring, a lower bending fixture block at the upper end of the large protection ring is arranged above the upper bending fixture block at the upper end of the large protection ring, the right side of fixture block is provided with the trough of belt round pin axle under the big protective shroud upper end bending, and the trough of belt is sold epaxially and all is provided with the retaining ring for the second shaft, and the top, middle part and the below of the locating plate right-hand member of bending all are provided with the cylinder locating piece of bending, are provided with the cylinder free bearing of bending on the cylinder locating piece of bending, and the back of the locating plate of bending is with the screw connection guiding axle.

Furthermore, the upper bending assembly comprises an upper bending pressing block and an upper bending air cylinder, the upper bending pressing block is arranged on the upper bending air cylinder, and the upper bending air cylinder is arranged on the bending air cylinder hinged support.

Further, the lower bending assembly comprises a lower bending pressing block and a lower bending air cylinder, the lower bending pressing block is arranged on the lower bending air cylinder, and the lower bending air cylinder is arranged on the bending air cylinder hinged support.

By adopting the technical scheme, the utility model has the following technical effects:

the utility model realizes the production line type execution of the straightening, punching, looping and bending processes of the protective ring by an all-in-one machine mode, improves the forming and processing efficiency and quality of the protective ring, is suitable for the processing of the protective rings with different bending radiuses, different punching diameters and different thicknesses, realizes the integrated production line production, improves the production efficiency, reduces the equipment quantity, realizes the purposes of high production rate, wide applicability, simple operation, easy parameter adjustment and personnel demand reduction.

Drawings

FIG. 1 is a front view of a production line of the present invention.

FIG. 2 is a schematic structural view of the production line of the present invention, which is transferred to a bending position after being cut.

FIG. 3 is a left side view of the production line of the present invention.

FIG. 4 is a schematic structural view of a steel coil straightening wheel set of the production line of the present invention.

FIG. 5 is a front view of the feeding and cutting assembly of the manufacturing line of the present invention.

FIG. 6 is a right side view of the feed assembly of the manufacturing line of the present invention.

FIG. 7 is a front view of a bending station assembly of the manufacturing line of the present invention.

FIG. 8 is a left side view of a bending station assembly of the manufacturing line of the present invention.

Fig. 9 is a schematic structural view of a piston rod assembly of a bending workbench cylinder in the production line of the utility model.

FIG. 10 is a schematic view of the structure of the vertically movable air gripper assembly of the production line of the present invention.

Figure 11 is a left side view of the vertically moving gas jaw assembly of the production line of the present invention.

FIG. 12 is a front view of a horizontally moving bend locator plate assembly of the manufacturing line of the present invention.

FIG. 13 is a left side view of a horizontally moving bend positioning plate assembly of the manufacturing line of the present invention.

Fig. 14 is a schematic structural view of a piston rod assembly of a bending cylinder in the production line of the present invention.

Reference numbers in the figures: 1-a stamping waste collection frame; 2-a stamping workbench; 3-unpowered steel coil material rack and steel coil; 4-a steel coil straightening wheel set; 5-punching machine; 6-punching a die; 7-forming an integrated machine; 8-oil cylinder; 9-cutting knife; 10-a steel belt; 11-vertically moving gas claw assembly; 12-bending and pressing blocks upwards; 13-upward bending cylinder; 14-bending and pressing the block downwards; 15-lower bending cylinder; 16-horizontally moving the bending positioning plate assembly; 17-bending the worktable assembly;

111-pneumatic pawl positioning plate; 112-degree 180-degree opening and closing air claws; 113-a screw; 114-a collet; 115-connecting blocks; 116-a floating joint; 117-linear guide slide; 118-a backing plate;

1601-bending the positioning plate; 1602-bending a lower fixture block at the lower end of the large guard ring; 1603-bending an upper clamping block at the lower end of the large retainer; 1604-pin with groove; 1605-second shaft retainer ring; 1606-bending the lower end of the small guard ring to form a lower clamping block; 1607-bending the upper fixture block at the lower end of the small guard ring; 1608-bending the upper end of the big guard ring to form a lower fixture block; 1609-bending the upper end of the large guard ring to form a fixture block; 1610-bending a cylinder hinged support; 1611-bending the cylinder positioning block; 1612-guide shaft;

1701-flange linear bearing; 1702-bending the platen; 1703-linear guide; 1704-cylinder mount; 1705-cylinder; 1706-an adjustable size multi-position stationary cylinder; 1707-hexagonal pillars; 1708-internal thread hexagonal column; 1709-a second hex nut; 1710-an adjustable nut;

181-C shaped connecting block; 182-grooved pin shaft; 183-retainer ring for shaft; 184-external thread cylinder piston rod;

401-horizontal straightening wheel spacer blocks; 402-socket head cap screw; 403-hand screw; 404-a first hex nut; 405-a flat washer; 406-horizontal straightener roll positioning plate; 407-positioning blocks at two ends of the horizontal straightening wheel; 408-a horizontal straightening wheel slide; 409-H groove bearing; 410-a central positioning block of the horizontal straightening wheels; 411-first axial circlip; 412-positioning plate on vertical straightening wheel; 413-a central positioning block of the vertical straightening wheel; 414-vertical straightening wheel slide; 415-positioning blocks at two ends of the vertical straightening wheels; 416-a vertical straightening wheel bottom positioning block; 417 — rolling bearing; 418-big washer;

71-lower rollers; 72-a steel belt; 73-upper roller; 74-vertical slots; 75-a press bending wheel; 76-arc groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, preferred embodiments are given and the present invention is described in further detail. It should be noted, however, that the numerous details set forth in the description are merely for the purpose of providing the reader with a thorough understanding of one or more aspects of the present invention, which may be practiced without these specific details.

The utility model provides a cat ladder protective shroud production line for tower machine, as shown in fig. 1-3, including stamping workbench 2, unpowered coil of strip work or material rest 3, coil of strip aligning wheelset 4, punch press 5 and shaping all-in-one 7, unpowered coil of strip work or material rest 3, coil of strip aligning wheelset 4 and punch press 5 are in proper order from the right side to left side setting on stamping workbench 2, and shaping all-in-one 7 sets up at stamping workbench 2's left end, is provided with cut-out press 6 on punch press 5. The bottom of the punch 5 is provided with a punching waste collecting frame 1.

The forming integrated machine 7 comprises a vertical fixing plate, a cutting assembly, a feeding assembly, an upper bending assembly and a lower bending assembly, wherein the cutting assembly is arranged at the left end of the upper portion of the vertical fixing plate, the feeding assembly is arranged at the right end of the cutting assembly, the horizontal moving bending workbench assembly is arranged below the feeding assembly, and the vertical moving air claw assembly is arranged at the left end of the horizontal moving bending workbench assembly. The upper bending assembly and the lower bending assembly are arranged on the horizontal moving bending workbench assembly and are arranged at the right end of the vertical moving pneumatic claw assembly. The upper bending assembly comprises an upper bending pressing block 12 and an upper bending air cylinder 13, the upper bending pressing block 12 is arranged on the upper bending air cylinder 13, and the upper bending air cylinder 13 is arranged on the bending air cylinder hinged support 1610. The lower bending assembly comprises a lower bending pressing block 14 and a lower bending air cylinder 15, the lower bending pressing block 14 is arranged on the lower bending air cylinder 15, and the lower bending air cylinder 15 is arranged on the bending air cylinder hinged support 1610.

In the embodiment of the present invention, as shown in fig. 4, the steel coil straightening wheel group 4 includes a horizontal straightening wheel spacer 401, an inner hexagon screw 402, a hand screw 403, a first hexagon nut 404, a flat washer 405, a horizontal straightening wheel positioning plate 406, two end positioning blocks 407 of the horizontal straightening wheel, a horizontal straightening wheel slide seat 408, an H-groove bearing 409, a central positioning block 410 of the horizontal straightening wheel, a first shaft retainer 411, an upper positioning plate 412 of the vertical straightening wheel, a central positioning block 413 of the vertical straightening wheel, a slide seat 414 of the vertical straightening wheel, two end positioning blocks 415 of the vertical straightening wheel, a bottom positioning block 416 of the vertical straightening wheel, a rolling bearing 417 and a large washer 418, wherein the two end positioning blocks 407 of the horizontal straightening wheel are fixed on the horizontal straightening wheel spacer 401, the positioning blocks 406 of the horizontal straightening wheel are fixed at two ends of the horizontal straightening wheel spacer 407 and the central positioning block 410 of the horizontal straightening wheel, and a space between the two end positioning blocks 407 of the horizontal straightening wheel and the central positioning block 410 of the horizontal straightening wheel is provided, A sliding groove is arranged between a central positioning block 410 of the horizontal straightening wheel and the central positioning block 410 of the horizontal straightening wheel, two horizontal straightening wheel slide seats 408 are arranged in the sliding groove and can be arranged in a sliding way, an H-groove bearing 409 is arranged on the horizontal straightening wheel slide seats 408, a hand screw 403 is arranged on the side of the horizontal straightening wheel positioning plate 406 and passes through the horizontal straightening wheel positioning plate 406 to be in contact with the horizontal straightening wheel slide seats 408, a first hexagon nut 404 and a flat washer 405 are arranged on the hand screw 403, positioning blocks 415 at two ends of the vertical straightening wheel and a central positioning block 413 of the vertical straightening wheel are arranged on the top of a bottom positioning block 416 of the vertical straightening wheel, the vertical straightening wheel slide seats 414 are transversely arranged between the positioning blocks 415 at two ends of the vertical straightening wheel and the central positioning block 413 of the vertical straightening wheel and between the central positioning block 413 of the vertical straightening wheel and the central positioning block 413 of the vertical straightening wheel, an upper positioning block 412 of the vertical straightening wheel is fixed on the top of the positioning blocks 415 at two ends of the vertical straightening wheel and the central positioning block 413 of the vertical straightening wheel, the hand-screwed screw 403 penetrates through the vertical straightening wheel upper positioning plate 412 to be in contact with the vertical straightening wheel sliding seat 414, the rolling bearings are arranged in an upper row and a lower row, the vertical straightening wheel sliding seat 414 in the upper row is arranged between the two groups of rolling bearings 417 and the large washer 418 in the lower row, the rolling bearings 417 are arranged on the vertical straightening wheel sliding seat 414, the large washers 418 are arranged at the outer ends of the rolling bearings 417, and the rolling bearings 417 and the large washers 418 in the lower row are arranged on the vertical straightening wheel bottom positioning block 416.

The horizontal straightening wheel slide 408 can move horizontally under the clamping of the positioning blocks 407 at the two ends of the horizontal straightening wheel and the central positioning block 410 of the horizontal straightening wheel, so as to adapt to different steel strip widths. Similarly, the vertical straightening wheel slide 414 can move vertically under the clamping of the central positioning block 413 of the vertical straightening wheel and the positioning blocks 415 at the two ends of the vertical straightening wheel, so as to adapt to different steel strip thicknesses. The horizontal straightening wheel cushion block 401 and the vertical straightening wheel bottom positioning block 416 are provided with pin holes and screw holes at the bottoms and are fixed on the stamping working table 2 by pins and screws. The steel belt is firstly straightened in the width direction through the horizontal straightening wheel set and then straightened in the thickness direction through the vertical straightening wheel set.

In the embodiment of the utility model, as shown in fig. 1, 5-6, the cutting assembly comprises an oil cylinder 8 and a cutter 9, the cutter 9 is arranged at one end of the oil cylinder 8, the oil cylinder 8 is arranged on a vertical fixing plate, the feeding assembly comprises a lower roller 71, an upper roller 73, a vertical groove 74, a bending roller 75 and an arc groove 76, the arc groove 76 and the vertical groove 74 are arranged on the vertical fixing plate, the oil cylinder 8 is slidably arranged on the arc groove 76, the bending roller 75 is slidably arranged on the vertical groove 74 and is arranged at the right end of the oil cylinder 8, the lower roller 71 is arranged below the upper roller 73, the lower roller 71 and the upper roller 73 are both fixed on the vertical fixing plate, and the axes of each group of the lower roller 71 and the upper roller 73 are arranged on the same vertical plane.

The upper roller set 73 can be adjusted to move vertically by bolts (not shown in the figure) to adapt to different steel strip thicknesses. The upper and lower rollers clamp the steel belt, one of the upper or lower rollers is a driving wheel, and the feeding is driven by a motor (the feeding direction is from right to left in the drawing). The press wheel 75 is movable up and down in the vertical slot 74 and contacts the steel strip to produce different bend radii in the steel strip. The oil cylinder 8 can move along the arc groove 76 and axially swing for a certain angle along the width direction of the steel strip, so that the incision position of the cutter is adapted to the thickness of the bent steel strip. The lower roller 71 or the upper roller 73 may have a rib to restrict the displacement of the steel belt 72 in the width direction.

In the embodiment of the utility model, as shown in fig. 7-11, the retainer ring forming mechanism comprises a vertical moving air claw assembly 11, a horizontal moving bending positioning plate assembly 16 and a bending worktable assembly 17, the bending worktable assembly 17 is fixed on a vertical plate of the forming integrated machine 7, the vertical moving air claw assembly 11 is arranged at the left end of the bending worktable assembly 17, the vertical moving air claw assembly 11 comprises an air claw positioning plate 111, 180-degree opening and closing air claws 112, screws 113, clamping heads 114, connecting blocks 115, floating joints 116, sliders 117 for linear guide rails and cushion blocks 118, the two 180-degree opening and closing air claws 112 are arranged at two ends of the air claw positioning plate 111, the two clamping heads 114 are connected with the 180-degree opening and closing air claws 112 through the screws 113, the connecting blocks 115 are arranged at the inner side of the air claw positioning plate 111, the sliders 117 for linear guide rails and the cushion blocks 118 are arranged at the back of the air claw positioning plate 111, the bending worktable assembly 17 comprises a bending worktable 1702, the bending working table plate 1702 is provided with a flange linear bearing 1701, a linear guide rail 1703 and a cylinder mounting seat 1704, a cylinder 1705 is arranged on the cylinder mounting seat 1704, hexagonal pillars 1707 are arranged on two sides of the rear end of the bending working table plate 1702, a multi-position fixing cylinder 1706 with adjustable size is arranged in the middle of the rear end of the bending working table plate 1702, and an internal thread hexagonal pillar 1708 is arranged at the piston rod end of the cylinder.

Through holes are arranged at two ends of the connecting block 115 and are connected with threaded holes at the corresponding positions of the pneumatic claw positioning plates by screws 113. The external thread end of the floating joint 116 is connected to the threaded hole on the connecting block 115, and the internal thread end is connected with the external thread end of the piston rod of the bending cylinder 13 or 15. The backing plate 118 is provided with a through hole corresponding to the threaded hole of the slider 117. The pneumatic claw positioning plate 111 is provided with a counter bore, and is connected with a slide block 117 for a linear guide rail and a backing plate 118 by screws.

The cylinder 1705 is used to drive the gas claw assembly. Externally threaded on one end and internally threaded on the other end of hex boss 1707 are attached to threaded holes in bending platen 1702. One end of an internal thread hexagonal column 1708 is connected with the end part of an external thread piston rod of the adjustable-size multi-position fixing air cylinder 1706, the other end of the internal thread hexagonal column is connected with a screw through a through hole corresponding to 1601, and the horizontal moving position of the bending positioning plate component 16 can be adjusted through an adjusting nut 1710.

The connection of the piston rods in the upper bending cylinder 13 and the lower bending cylinder 15 is as shown in fig. 14, and the grooved pin shaft 182 passes through the through hole of the C-shaped connecting block 181 and is positioned by the shaft retainer 183. The threaded outer piston rod 184 is connected to a corresponding threaded hole of the C-shaped connecting block 181.

The upper bending pressing block 12 or 14 and the lower bending pressing block are connected in a manner shown in fig. 1, wherein one end of the upper bending pressing block is connected with the grooved pin shaft 182 through a through hole, and the other end of the upper bending pressing block is connected with the grooved pin shaft 1604 through a through hole.

In the implementation of the utility model, as shown in fig. 12, a horizontally moving bending positioning plate assembly 16 is arranged on a bending worktable assembly 17, the horizontally moving bending positioning plate assembly 16 is fixedly connected with a piston rod of an adjustable-size multi-position fixing cylinder 1706, the horizontally moving bending positioning plate assembly 16 comprises a bending positioning plate 1601, a large guard ring lower end bending lower fixture block 1602 is arranged at the bottom of the left end of the bending positioning plate 1601, a large guard ring lower end bending upper fixture block 1603 is arranged on the upper side of the large guard ring lower end bending lower fixture block 1602, a large guard ring lower end bending upper fixture block 1603 is arranged on the upper side of the large guard ring lower end bending lower fixture block 1603, a grooved pin 1604 is arranged on the right side of the large guard ring lower end bending upper fixture block 1603, a small guard ring lower end bending upper fixture block 1607 is arranged above the small guard ring lower end bending lower fixture block 1606, a grooved pin 1604 is arranged on the right side of the small guard ring bending upper fixture block 1607, a large guard ring upper end bending lower fixture block 1608 is arranged above the left end of the bending positioning plate 1601, fixture block 1609 is bent to big protective shroud upper end below fixture block 1608 top of bending, fixture block 1608's right side is provided with grooved pin axle 1604 under big protective shroud upper end bending, all be provided with retaining ring 1605 for the second shaft on the grooved pin axle 1604 of many places, the top of locating plate 1601 right-hand member of bending, middle part and below all are provided with bending cylinder locating piece 1611, be provided with bending cylinder hinged-seat 1610 on bending cylinder locating piece 1611, the back of locating plate 1601 of bending is with screw connection guiding axle 1612, guiding axle 1612 passes flange linear bearing 1701.

In order to adapt to bending positioning of guard rings with different sizes, a lower bent clamping block 1606 at the lower end of the small guard ring and an upper bent clamping block 1607 at the lower end of the small guard ring can be selectively installed. 1602. The bottom of each clamping block 1603, 1606, 1607, 1608 and 1609 is provided with at least two threaded holes, and the 1601 bent positioning plate is correspondingly provided with a back counter bore which is connected with the clamping block through a screw. The bending cylinder positioning block 1611 is provided with a threaded hole, the bending positioning plate 1601 is provided with a through hole corresponding to the 1611, and the bending cylinder positioning block 1611 is connected with the bending positioning plate 1601 and the cylinder hinged support 1610 respectively through screws. One end of the guide shaft 1702 is provided with a flat position, and the other end of the guide shaft 1702 is provided with an internal thread which is connected with a corresponding through hole on the bending positioning plate 1601 by a screw.

The forming process of the guard ring comprises the following steps in sequence: steel belt straightening → punching → looping → air claw clamping steel belt → oil cylinder piston rod stretches out to drive the cutter to cut off the steel belt → oil cylinder piston rod resets, the air claw clamping steel belt moves down → bending mechanism horizontally pushes out → bending cylinder action, steel belt two-end bending → bending cylinder resetting → air claw opening → steel belt falling, through guide plate to collection frame (not shown in the figure) → air claw moving upwards → roller feeding → looping process circulation.

The control system is provided with a touch screen to set the feeding length and the steel strip bending length corresponding to the hole pitch of the protective ring, or different program schemes are pre-programmed for selective execution.

And in the punching process, the motor drives the roller to feed to a punching station during operation. If the hole diameters are different, a plurality of punching machines (not shown in the figure) are arranged along the length direction of the steel strip, the system controls the punching machines to act, and the looping process is executed after all punching is finished in sequence.

An integrated machine is adopted to replace a hydraulic machine, a hydraulic die, a bending machine and a punching machine in a single process; punching, steel belt transferring and bending stations are added to the structure of the ring rolling machine in the market, so that the equipment is compact and has high automation degree. The requirements of punching, looping and bending of the tower crane guard ring part are met. Through the mode of the integrated machine, the production line execution of the straightening, punching, looping and bending processes of the guard ring is realized, the forming and processing efficiency and quality of the guard ring are improved, and the method is suitable for processing the guard rings with different bending radiuses, different punching diameters and different thicknesses.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.

Claims (7)

1. The utility model provides a cat ladder protective shroud production line for tower machine which characterized in that: the steel coil straightening machine comprises a stamping workbench (2), an unpowered steel coil rack (3), a steel coil straightening wheel set (4), a punch (5) and a forming integrated machine (7), wherein the unpowered steel coil rack (3), the steel coil straightening wheel set (4) and the punch (5) are sequentially arranged on the stamping workbench (2) from right to left, the forming integrated machine (7) is arranged at the left end of the stamping workbench (2), and a punching die (6) is arranged on the punch (5);

the forming integrated machine (7) comprises a feeding assembly, a cutting assembly, a vertical moving gas claw assembly, an upper bending assembly, a lower bending assembly, a horizontal moving bending workbench assembly, the cutting assembly is arranged at the left end of the upper portion of a vertical fixing plate, the feeding assembly is arranged at the right end of the cutting assembly, the horizontal moving bending workbench assembly is arranged below the feeding assembly, the vertical moving gas claw assembly is arranged at the left end of the horizontal moving bending workbench assembly, the upper bending assembly and the lower bending assembly are arranged on the horizontal moving bending workbench assembly, and the right end of the vertical moving gas claw assembly is arranged.

2. The ladder guard ring production line for the tower crane as claimed in claim 1, wherein: the steel coil straightening wheel set (4) comprises a horizontal straightening wheel cushion block (401), an inner hexagon screw (402), a hand screw (403), a first hexagon nut (404), a flat washer (405), a horizontal straightening wheel positioning plate (406), horizontal straightening wheel two-end positioning blocks (407), a horizontal straightening wheel sliding seat (408), an H-groove bearing (409), a horizontal straightening wheel central positioning block (410), a first shaft retainer ring (411), a vertical straightening wheel upper positioning plate (412), a vertical straightening wheel central positioning block (413), a vertical straightening wheel sliding seat (414), vertical straightening wheel two-end positioning blocks (415), a vertical straightening wheel bottom positioning block (416), a rolling bearing (417) and a large washer (418), wherein the horizontal straightening wheel two-end positioning blocks (407) are fixed on the horizontal straightening wheel cushion block (401), and the horizontal straightening wheel positioning plates (406) are fixed at the horizontal straightening wheel two-end positioning blocks (407) and the two ends of the horizontal straightening wheel central positioning block (410), the horizontal straightening wheel two-end positioning blocks (407) and the horizontal straightening wheel central positioning blocks (410) are arranged between the horizontal straightening wheel two-end positioning blocks (407) and the horizontal straightening wheel central positioning blocks (410), sliding grooves are formed between the horizontal straightening wheel central positioning blocks (410) and the horizontal straightening wheel central positioning blocks (410), two horizontal straightening wheel sliding seats (408) are arranged in the sliding grooves and can be arranged in a sliding mode, H-groove bearings (409) are arranged on the horizontal straightening wheel sliding seats (408), hand screws (403) are arranged on the side edges of the horizontal straightening wheel positioning blocks (406) and penetrate through the horizontal straightening wheel positioning blocks (406) to be in contact with the horizontal straightening wheel sliding seats (408), first hexagonal nuts (404) and flat washers (405) are arranged on the hand screws (403), vertical straightening wheel two-end positioning blocks (415) and vertical straightening wheel central positioning blocks (413) are arranged on the tops of vertical straightening wheel bottom positioning blocks (416), and the vertical straightening wheel sliding seats (414) are transversely arranged between the vertical straightening wheel two-end positioning blocks (415) and the vertical straightening wheel central positioning blocks (413) and between the vertical straightening wheels The vertical straightening wheel central positioning block (413) and the vertical straightening wheel central positioning block (413) are arranged between the straightening wheel central positioning block (413), the vertical straightening wheel upper positioning plate (412) is fixed at the tops of the vertical straightening wheel two-end positioning blocks (415) and the vertical straightening wheel central positioning block (413), a hand-screwed screw (403) penetrates through the vertical straightening wheel upper positioning plate (412) to be in contact with the vertical straightening wheel sliding seat (414), a plurality of rolling bearings are arranged into an upper row and a lower row of structures, the upper row of vertical straightening wheel sliding seat (414) is arranged between the lower row of two groups of rolling bearings (417) and a large gasket (418), a rolling bearing (417) is arranged on the vertical straightening wheel sliding seat (414), the outer end of the rolling bearing (417) is provided with the large gasket (418), and the lower row of rolling bearings (417) and the large gasket (418) are arranged on the vertical straightening wheel bottom positioning block (416).

3. The crawling ladder guard ring production line for the tower crane as claimed in claim 2, wherein: the cutting assembly comprises an oil cylinder (8), a cutter (9), the cutter (9) is arranged at one end of the oil cylinder (8), the oil cylinder (8) is arranged on a vertical fixing plate, the feeding assembly comprises a lower roller (71), an upper roller (73), a vertical groove (74), a bending wheel (75) and an arc groove (76), the vertical groove (74) is formed in the vertical fixing plate, the oil cylinder (8) is slidably arranged on the arc groove (76), the bending wheel (75) is slidably arranged on the vertical groove (74), the cutting assembly is arranged at the right end of the oil cylinder (8), the lower roller (71) is arranged below the upper roller (73), the lower roller (71) and the upper roller (73) are both fixed on the vertical fixing plate, and the axis of each group of lower roller (71) and upper roller (73) is arranged on the same vertical plane.

4. The ladder stand guard ring production line for the tower crane as claimed in claim 3, wherein: the guard ring forming mechanism comprises a vertical moving air claw component (11), a horizontal moving bending positioning plate component (16) and a bending workbench component (17), the bending workbench component (17) is fixed on a vertical plate of the forming integrated machine (7), the vertical moving air claw component (11) is arranged at the left end of the bending workbench component (17), the vertical moving air claw component (11) comprises an air claw positioning plate (111), 180-degree opening and closing air claws (112), screws (113), clamping heads (114), connecting blocks (115), floating joints (116), sliding blocks (117) for linear guide rails and cushion blocks (118), the two 180-degree opening and closing air claws (112) are arranged at two ends of the air claw positioning plate (111), the two clamping heads (114) are connected with the 180-degree opening and closing air claws (112) through the screws (113), the connecting blocks (115) are arranged at the inner side of the air claw positioning plate (111) and are connected and fixed through the screws (113), the floating joint (116) is connected to a threaded hole of the connecting block (115), a sliding block (117) for a linear guide rail and a cushion block (118) are connected to a counter bore of the pneumatic claw positioning plate (111) through screws, the bending workbench assembly (17) comprises a bending workbench plate (1702), a flange linear bearing (1701) is arranged on the bending workbench plate (1702), a linear guide rail (1703) and a cylinder mounting seat (1704) are arranged, a cylinder (1705) is arranged on the cylinder mounting seat (1704), hexagonal pillars (1707) are arranged on two sides of the rear end of the bending workbench plate (1702), a multi-position fixing cylinder (1706) with adjustable size and capable of fixing and adjusting size in multiple positions is arranged in the middle of the rear end of the bending workbench plate (1702), an internal hexagonal pillar (1708) and a second hexagonal nut (1709) are arranged at the external thread end of a piston rod of the cylinder, and an adjustable nut (1710) is arranged at the tail of the cylinder.

5. The ladder stand guard ring production line for the tower crane as claimed in claim 4, wherein: a horizontal moving bending positioning plate component (16) is arranged on the bending workbench component (17), the horizontal moving bending positioning plate component (16) is fixedly connected with a piston rod of a multi-position fixing cylinder (1706) with adjustable size, the horizontal moving bending positioning plate component (16) comprises a bending positioning plate (1601), a large guard ring lower end bending lower fixture block (1602) is arranged at the bottom of the left end of the bending positioning plate (1601), a large guard ring lower end bending upper fixture block (1603) is arranged on the upper side of the large guard ring lower end bending lower fixture block (1602), a small guard ring lower end bending upper fixture block (1607) is arranged on the right side of the large guard ring lower end bending upper fixture block (1603), a small guard ring lower end bending lower fixture block (1607) is arranged in the middle of the left end of the bending positioning plate (1601), a small guard ring lower end bending upper fixture block (1607) is arranged above the small guard ring lower end bending lower fixture block (1606), and a belt groove pin (1604) is arranged on the right side of the small guard ring lower end bending upper fixture block (1607), a large guard ring upper end bending lower clamping block (1608) is arranged above the left end of the bending positioning plate (1601), a large guard ring upper end bending upper clamping block (1609) is arranged above the large guard ring upper end bending lower clamping block (1608), a grooved pin (1604) is arranged on the right side of the large guard ring upper end bending lower clamping block (1608), a plurality of second shaft retaining rings (1605) are arranged on the grooved pin (1604), bending cylinder positioning blocks (1611) are arranged above, in the middle and below of the right end of the bending positioning plate (1601), a bending cylinder hinged support (1610) is arranged on the bending cylinder positioning block (1611), and the back of the bending positioning plate (1601) is connected with a guide shaft (1612) through screws.

6. The crawling ladder guard ring production line for the tower crane as claimed in claim 5, wherein: the upper bending assembly comprises an upper bending pressing block (12) and an upper bending air cylinder (13), the upper bending pressing block (12) is arranged on the upper bending air cylinder (13), and the upper bending air cylinder (13) is arranged on the bending air cylinder hinged support (1610).

7. The crawling ladder guard ring production line for the tower crane as claimed in claim 6, wherein: the lower bending assembly comprises a lower bending pressing block (14) and a lower bending air cylinder (15), the lower bending pressing block (14) is arranged on the lower bending air cylinder (15), and the lower bending air cylinder (15) is arranged on the bending air cylinder hinged support (1610).

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