CN209906628U

CN209906628U - Multi-station tube bending equipment for producing spiral lamp tube

Info

Publication number: CN209906628U
Application number: CN201920465916.2U
Authority: CN
Inventors: 邵光圣
Original assignee: SANYOU ELECTRONICS CO Ltd JIANGSHAN ZHEJIANG
Current assignee: SANYOU ELECTRONICS CO Ltd JIANGSHAN ZHEJIANG
Priority date: 2019-04-09
Filing date: 2019-04-09
Publication date: 2020-01-07
Anticipated expiration: 2029-04-09

Abstract

The utility model relates to the technical field of lamp processing equipment, in particular to a multi-station tube bending device for producing spiral tubes; the technical scheme of the utility model is realized like this: the utility model provides a multistation return bend equipment for producing spiral lamp, includes the workstation, its characterized in that: a straight pipe heating device, a longitudinal conveying device, a spiral forming device and a pipe bending device are arranged on the workbench; the spiral forming device comprises a first fixed seat, a first rotating table and a plurality of spiral die heads; the pipe bending device comprises a second fixed seat, a second rotating table, a clamping assembly, a preheating device and a residual material bending device; preheating device includes that the outer lane preheats subassembly and inner circle preheats the subassembly, the utility model provides a product percent of pass that equipment produced obtains promoting, the very big improvement of production efficiency.

Description

Multi-station tube bending equipment for producing spiral lamp tube

Technical Field

The utility model belongs to the technical field of lamps and lanterns processing equipment technique and specifically relates to a multistation return bend equipment for producing spiral tube is related to.

Background

The conventional spiral lamp tube has the advantage of small volume, and the advantage of small shielding area among the lamp tubes enables the lamp light to irradiate a larger angle to increase the brightness, so that the lamp is a lighting lamp which is widely applied and popular at present.

The spiral shape production mode of fluorescent tube, traditional processing equipment is that a glass pipe that is in plastic high temperature state is located the spiral mould top through the clamping portion centre gripping that can reciprocate to the rotatory action that rises of cooperation this spiral mould, the tip of centre gripping glass pipe to central point position relative movement, and make this glass pipe can form the spiral pipe shape along this spiral mould periphery, and the shaping is accomplished the back, and clamping portion rebound is mentioned the finished product, then dismantles the finished product through the manual work. However, the pipe bending method can only perform single processing, the processing efficiency is low, the temperature of the pipeline which just completes the processing is high, manual disassembly is inconvenient, and the collection efficiency is low; secondly, in the prior art, the heating box heats the pipe fitting, the pipe fitting needs to go into two steps of shaping and bending, and when the step of bending, because the shaping processing has been carried out, the phenomenon that the heating of the inner cambered surface and the outer cambered surface of the threaded pipeline is uneven can exist, so that the threaded pipe has poor bending effect in the excess material bending processing process, and the product qualification rate is not high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a be not enough to prior art exists, the utility model aims to provide a multistation return bend equipment for producing spiral fluorescent tube.

The technical scheme of the utility model is realized like this: the utility model provides a multistation return bend equipment for producing spiral lamp, includes the workstation, its characterized in that: the workbench is provided with a straight pipe heating device, a longitudinal conveying device for continuously conveying straight pipes, a spiral forming device and a pipe bending device; the spiral forming device comprises a first fixed seat fixedly arranged on the workbench, a first rotating table and a plurality of spiral die heads uniformly arranged along the circumferential direction of the first rotating table; the first rotating platform is rotatably connected with the first fixed seat through a first motor fixedly arranged at the bottom of the workbench; the pipe bending device comprises a second fixed seat fixedly arranged on the workbench, a second rotating table, a clamping assembly which is arranged along the circumferential direction of the second rotating table and used for clamping a workpiece on the spiral forming device, a preheating device which is arranged below the second rotating table and used for secondarily heating the spiral lamp tube and a residual material bending device with a correction function; the second rotating platform is rotatably arranged on the second fixed seat through a second motor fixedly arranged at the bottom of the workbench; the preheating device comprises an outer ring preheating assembly and an inner ring preheating assembly, and the outer ring preheating assembly and the inner ring preheating assembly respectively do longitudinal reciprocating motion on the workbench through a first cylinder and a second cylinder which are fixedly arranged at the bottom of the workbench; and the excess material bending device is rotationally connected with the workbench.

Preferably: the straight pipe heating device comprises a left box body, a right box body matched with the left box body and a third air cylinder for controlling the left box body to transversely reciprocate; fixing grooves for placing straight pipes are formed in the contact surfaces of the left box body and the right box body; the third cylinder passes through support frame fixed mounting on the workstation, and the output and the left box fixed connection of the output shaft of this third cylinder.

Preferably: the longitudinal conveying device comprises a first transmission belt, a transverse moving assembly and a clamping part, wherein the first transmission belt is used for placing straight pipes to be processed and is uniformly distributed, the transverse moving assembly is used for receiving the straight pipes to be processed on the transmission belt, and the clamping part is used for clamping the heated straight pipes; the base of the first transmission belt is fixedly arranged on the support frame, and the surface of the first transmission belt is provided with a plurality of straight pipe placing grooves which are uniformly distributed; the transverse moving assembly comprises supporting seats fixedly arranged on two sides of the workbench, a transverse driving cylinder I fixedly arranged on the supporting seats and a supporting die matched with the fixing grooves on the left box body and the right box body, and the output end of a gas rod I of the transverse driving cylinder I is fixedly connected with the supporting die; the clamping part comprises a second longitudinal driving cylinder and a clamping arm; and the output end of the second air rod of the second longitudinal driving air cylinder is fixedly connected with the clamping arm.

Preferably: the top of the spiral forming device is provided with a piece taking device, and the piece taking device comprises an installation plate fixedly installed on a first rotating table through a second support rod, a sliding seat connected with the installation plate in a sliding mode and a piece taking part; the mounting plate is provided with a fourth cylinder for driving the sliding seat to slide transversely, and the output end of a gas rod IV of the fourth cylinder is fixedly connected with the sliding seat; and the bottom surface of the mounting plate is fixedly provided with a third longitudinal driving cylinder, and the output end of the third cylinder shaft of the third longitudinal driving cylinder is fixedly connected with the workpiece taking part.

Preferably: the clamping assembly comprises a fixed clamping arm and a movable clamping arm which are mutually matched, and a third rotating table and a fourth air cylinder are fixedly connected with the second rotating table through a vertical rod; the fixed clamping arm is fixedly arranged at the bottom of the third rotating platform, and the movable clamping arm is transversely connected with the third rotating platform in a sliding manner; an open slot is formed in the movable clamping arm; the fourth cylinder is fixedly arranged on the third rotating platform, the output end of the air rod IV of the fourth cylinder is used for pushing and pulling the pushing block of the movable clamping arm, and the pushing block is matched with the opening groove.

Preferably: the outer ring preheating assembly and the inner ring preheating assembly respectively comprise an igniter, a lifting base and a longitudinal driving cylinder IV for controlling the lifting base to longitudinally reciprocate; the longitudinal driving cylinder IV is fixedly arranged at the bottom of the workbench, and the output end of a longitudinal air rod of the longitudinal driving cylinder IV penetrates through the workbench to be fixedly connected with the lifting base; the igniter is fixedly arranged on the lifting base.

Preferably: the outer ring preheating assembly further comprises a first ignition cover, a first cavity is formed in the first ignition cover, the ignition cover is arranged in the first cavity, and a plurality of first fire outlet holes which are uniformly distributed are formed in the inner side wall of the first ignition cover; the inner diameter R of the first ignition cover is larger than the outer diameter R1 of the spiral pipe, and R-R1 is larger than 8 mm; the inner ring preheating assembly further comprises a second ignition cover, a second cavity is formed in the second ignition cover, the ignition cover is arranged in the second cavity, and a plurality of uniformly distributed second fire outlets are formed in the outer side wall of the second ignition cover; the outer diameter R2 of the second ignition cover is smaller than the inner diameter R3 of the spiral pipe, and R3-R2 are more than 8 mm.

Preferably: the excess material bending device comprises a spiral base and a spiral driving motor for driving the spiral base; the output end of the spiral driving motor penetrates through the bottom fixed connection of the workbench and the rotary base, a correction frame for correcting the spiral pipe is arranged on the rotary base, a vertical driving cylinder five is arranged on the lower bottom surface of the spiral base, and the vertical driving cylinder five is fixedly installed on the workbench and vertically drives one end, away from the workbench, of a gas rod five of the cylinder five and is fixedly connected with the spiral base.

Preferably: the working table is provided with a collecting device for automatically collecting the processed spiral tube, and the collecting device comprises a conveying ladder and a large motor for driving the conveying ladder; the conveying ladder is fixedly arranged on the workbench, and baffles for preventing finished products from rolling off the conveying ladder are arranged on two sides of the conveying ladder; the included angle formed by the conveying ladder and the workbench is more than 35 degrees and more than 20 degrees; the large motor is fixedly connected with the workbench.

Compared with the prior art, the beneficial effects of the utility model are that: by arranging a plurality of spiral die heads which are uniformly distributed and can freely rotate, when the device is used, the rotary die heads rotate on the first rotary table and are matched according to the conveying speed of an unprocessed straight pipe, the streamlined production mode is realized, and the processing efficiency is improved; the preheating device is arranged, and the spiral pipe is ensured to be uniformly heated in the correction process in a mode of preheating the inner ring and the outer ring in the preheating device, so that the bending and correction accuracy of the product excess material is improved, and the processing quality of the product is improved;

1. the heating device is arranged and consists of the left box body and the right box body, a plurality of fixing grooves which are uniformly distributed are formed in the connecting surface of the left box body and the right box body, the straight pipes are heated in the fixing grooves, and the left heating box and the right heating box are arranged in a timing opening and closing mode, so that the interior of the heating box can be periodically supplemented; a longitudinal moving assembly and a clamping part are arranged between the left heating box and the right heating box, and each straight pipe can move downwards step by step in the fixing groove by the longitudinal moving assembly in the heating process, so that the heating degree of each straight pipe is the same, and the qualification rate of products is improved; each group of motion tracks of the clamping parts are the same, so that the positions of pipe taking and pipe placing can be the same, and the processing quality of products is further improved;

2. the piece taking device is arranged on a first rotating table of the spiral forming device, so that the piece taking device and the spiral forming device run synchronously, the piece taking device controls the piece taking part to move up and down through a longitudinal driving cylinder, when the piece taking part moves downwards, a clamping jaw of the piece taking part opens, when the piece taking part reaches the lowest point, the clamping jaw closes to clamp the spiral pipe, and at the moment, a rotating die head at the bottom of the spiral pipe reversely rotates to enable the piece taking part to move upwards, so that the spiral pipe is lifted; after the spiral pipe is lifted, the four-drive sliding seat of the air cylinder is driven, the sliding seat and the part taking part fixedly installed at the bottom of the sliding seat are conveyed to the bending device together, and therefore the process is circulated, the complex steps of manual disassembly are avoided, the processing efficiency is improved, and the processing quality is improved.

3. The first ignition cover is arranged on the outer ring preheating device, the inner side wall of the first ignition cover is provided with a plurality of first fire outlet holes which are uniformly distributed, and the inner diameter R of the first ignition cover is larger than the outer diameter R of the spiral pipe, so that flame can be sprayed on the outer side wall of the spiral pipe and the outer side wall can be uniformly heated; a second ignition cover is arranged on the inner ring preheating device, and a plurality of second fire outlet holes which are uniformly distributed are formed in the outer side wall of the second ignition cover; the outer diameter R2 of the second ignition cover is smaller than the inner diameter R3 of the spiral pipe, so that the flame can be uniformly sprayed on the inner side wall of the spiral pipe; the two are combined to realize uniform heating of the threaded pipe, so that the bending and correcting effects of the next step are improved;

4. through being provided with the unscrambler, when carrying out the clout and bend man-hour, the unscrambler can bend the processing clout of spiral pipe through seting up two correction grooves that are located same straight line to carry out the clout cutting to it, simultaneously because two correction grooves are located same straight line at the kneck of the spiral pipe that same straight line can be further, improve the processingquality of product.

5. By arranging the collecting device, after the spiral pipe is machined, the clamping assembly runs to the collecting device along with the second rotating platform, the movable clamping arm moves outwards to expand the opening, the machined spiral pipe on the clamping assembly falls onto the collecting device, and the conveying belt is arranged on the collecting device and is flexible, so that the spiral pipe cannot be damaged when falling onto the conveying belt and can be conveyed downwards along with the conveying belt; meanwhile, the included angle formed by the conveying ladder and the workbench is more than 35 degrees and more than 20 degrees, and the conveying efficiency of the spiral pipe is highest on the premise of stable conveying in the range.

The utility model discloses a concrete theory of operation: the straight pipes to be processed are conveyed to the longitudinal moving assembly through a first conveying belt in the conveying device and conveyed into the heating box through the longitudinal moving assembly, each straight pipe can move downwards in the fixed groove step by the longitudinal moving assembly in the heating process, the heating degree of each straight pipe is the same, each group of motion trails of the clamping parts are the same, the pipe taking and placing positions are the same, the straight pipes softened in the heating box are conveyed downwards through a second driving support arm of a longitudinal driving cylinder in the clamping parts and conveyed onto the spiral forming device, the softened straight pipes are spirally formed through a spiral die head on the spiral forming device, after the spiral forming, the spiral pipes are clamped through the taking device, the taking device is arranged on a first rotating platform of the spiral forming device, and the taking device and the spiral forming device run synchronously, the piece taking device controls the piece taking part to move up and down through the longitudinal driving cylinder III, when the piece taking part moves downwards, the clamping jaws of the piece taking part are opened, when the piece taking part reaches the lowest point, the clamping jaws are closed to clamp the spiral pipe, and at the moment, the rotating die head at the bottom of the spiral pipe reverses the piece taking part to move upwards, so that the spiral pipe is lifted; after the spiral pipe is lifted, the air cylinder is driven to drive the four sliding seats, the sliding seats and the part taking part fixedly installed at the bottom of the sliding seats are conveyed to the bending device together, the bending device is provided with the straightener, and when the remainders are bent, the straightener can bend the processing remainders of the spiral pipe through two straightening grooves which are arranged on the same straight line, so that the process is circulated.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a schematic structural view of an embodiment of the present invention;

FIG. 2 is a schematic structural view of a straight tube heating apparatus;

FIG. 3 is a schematic view of the longitudinal transport device;

FIG. 4 is a schematic view of the clamping assembly and the preheating device;

FIG. 5 is a schematic view of the preheating device;

FIG. 6 is a schematic structural diagram of the excess material bending device;

fig. 7 is a schematic structural view of the collecting device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Example (b):

as shown in fig. 1-7, the utility model discloses a multi-station tube bending device for producing spiral tubes, which comprises a workbench 1, wherein in the embodiment of the utility model, a straight tube heating device 2, a longitudinal transportation device 3 for continuously transporting straight tubes, a spiral forming device 4 and a tube bending device 5 are arranged on the workbench 1; the spiral forming device 4 comprises a first fixed seat 41 fixedly arranged on the workbench 1, a first rotating table 42 and a plurality of spiral die heads 43 uniformly arranged along the circumferential direction of the first rotating table 42; the first rotating platform 42 is rotatably connected with the first fixed seat 41 through a first motor 44 fixedly arranged at the bottom of the workbench 1; the tube bending device 5 comprises a second fixed seat 51 fixedly arranged on the workbench 1, a second rotating table 52, a clamping assembly 53 which is arranged along the circumferential direction of the second rotating table 52 and used for clamping a workpiece on the spiral forming device 4, a preheating device 54 which is arranged below the second rotating table 52 and used for secondarily heating the spiral lamp tube, and a residual material bending device 55 with a correction function; the second rotating platform 52 is rotatably arranged on the second fixed seat 51 through a second motor 56 fixedly arranged at the bottom of the workbench 1; the preheating device 54 comprises an outer ring preheating assembly 541 and an inner ring preheating assembly 542, wherein the outer ring preheating assembly 541 and the inner ring preheating assembly 542 respectively make longitudinal reciprocating motion on the workbench 1 through a first cylinder 543 and a second cylinder 544 which are fixedly installed at the bottom of the workbench 1; the excess material bending device 55 is rotatably connected with the workbench 1.

In the embodiment of the present invention, the straight pipe heating device 2 includes a left box 21, a right box 22 adapted to the left box 21, and a third cylinder 23 for controlling the left box 21 to reciprocate horizontally; the contact surfaces of the left box body 21 and the right box body 22 are provided with fixing grooves 24 for placing straight pipes; the third cylinder 23 is fixedly mounted on the workbench 1 through a support frame 25, and an output end of an output shaft 26 of the third cylinder 23 is fixedly connected with the left box 21.

In the embodiment of the present invention, the longitudinal transportation device 3 includes a first transmission belt 31 for placing and uniformly distributing the straight pipe to be processed, a lateral movement assembly 32 for receiving the straight pipe to be processed on the transmission belt 31, and a clamping portion 33 for clamping the heated straight pipe; the base of the first transmission belt 31 is fixedly 34 arranged on the support frame 25, and the surface of the first transmission belt 31 is provided with a plurality of straight pipe placing grooves 35 which are uniformly distributed; the transverse moving assembly 32 comprises a supporting seat 321 fixedly arranged at two sides of the workbench 1, a transverse driving cylinder I322 fixedly arranged on the supporting seat 321, and a supporting mold 323 matched with the fixing groove 24 on the left box body 21 and the right box body 22, wherein the output end of an air rod I224 of the transverse driving cylinder I322 is fixedly connected with the supporting mold 323; the clamping part 33 comprises a second longitudinal driving cylinder 331 and a clamping arm 332 which are fixedly arranged on the supporting frame 25; the output end of the air rod II 333 of the longitudinal driving air cylinder II 331 is fixedly connected with the clamping arm 332.

In the embodiment of the present invention, a pickup device 6 is disposed on the top of the spiral forming device 4, and the pickup device 6 includes a mounting plate 62 fixedly mounted on the first rotating table 42 through a second support rod 61, a sliding seat 63 slidably connected to the mounting plate 62, and a pickup portion 64; a fourth cylinder 65 for driving the sliding seat 63 to slide transversely is arranged on the mounting plate 62, and the output end of a gas rod four 66 of the fourth cylinder 65 is fixedly connected with the sliding seat 63; the bottom surface of the mounting plate 62 is fixedly provided with a vertical driving cylinder III 67, and the output end of a cylinder shaft III 68 of the vertical cylinder III 653 is fixedly connected with the part taking part 64.

In the embodiment of the present invention, the clamping assembly 53 comprises a fixed clamping arm 531 and a movable clamping arm 532 which are adapted to each other, a third rotating platform 534 fixedly connected to the second rotating platform through a vertical rod 533, and a fourth cylinder 535; the fixed clamping arm 531 is fixedly arranged at the bottom of the third rotating platform 534, and the movable clamping arm 532 is transversely connected with the third rotating platform 534 in a sliding manner; an open slot 536 is formed on the movable clamping arm 532; the fourth cylinder 535 is fixedly installed on the third rotating platform 534, the output end of the air rod four 537 of the fourth cylinder 535 is used for pushing and pulling the pushing block 538 of the movable clamping arm 532, and the pushing block 538 is matched with the open slot 536.

In the specific embodiment of the present invention, the outer ring preheating assembly 541 and the inner ring preheating assembly 542 include an igniter 5401, a lifting base 5402, and a longitudinal driving cylinder four 5403 for controlling the longitudinal reciprocating motion of the lifting base 5402; the longitudinal driving cylinder IV 5403 is fixedly arranged at the bottom of the workbench 1, and the output end of a longitudinal air rod 5404 of the longitudinal driving cylinder IV 5403 penetrates through the workbench 1 and is fixedly connected with the lifting base 5402; the igniter 5401 is fixedly installed on the lifting base.

In a specific embodiment of the present invention, the outer ring preheating assembly 541 further includes a first ignition cover 5405, a first cavity 5406 is formed inside the first ignition cover 5405, the igniter 5401 is placed in the first cavity, and a plurality of first fire outlet holes 5407 which are equally distributed are formed in an inner side wall of the first ignition cover 5405; the inner diameter R of the first ignition cover 5405 is larger than the outer diameter R1 of the spiral pipe, and R-R1 is larger than 8 mm; the inner ring preheating assembly further comprises a second ignition cover 5408, a second cavity 5409 is formed in the second ignition cover 5408, the igniter 5401 is covered in the second cavity, and a plurality of second fire outlet holes 5410 which are uniformly distributed are formed in the outer side wall of the second ignition cover 5408; the outer diameter R2 of the second ignition cover 8408 is smaller than the inner diameter R3 of the spiral pipe, and R3-R2 are larger than 8 mm.

In the embodiment of the present invention, the remainder bending device 55 includes a screw base 551 and a screw driving motor 552 for driving the screw base 551; the output end of the screw driving motor 552 penetrates through the workbench 1 to be fixedly connected with the bottom of the rotating base 551, the rotating base 551 is provided with a correction frame 553 for correcting a spiral pipe, the lower bottom surface of the rotating base 551 is provided with a longitudinal driving cylinder five 554, the longitudinal driving cylinder five 554 is fixedly installed on the workbench 1, and one end, away from the workbench 1, of an air rod five 555 of the longitudinal driving cylinder five 554 is fixedly connected with the rotating base 551.

In the embodiment of the present invention, a collecting device 7 for automatically collecting the processed spiral tube is disposed on the working table 1, and the collecting device 7 includes a conveying ladder 71 and a large motor 72 for driving the conveying ladder 71; the conveying ladder 71 is fixedly arranged on the workbench 1, and baffles 73 for preventing finished products from rolling off the conveying ladder are arranged at two sides of the conveying ladder 71; the included angle formed by the conveying ladder 71 and the workbench 1 is more than 35 degrees and more than 20 degrees; the large motor 72 is fixedly connected with the workbench 1.

5. By arranging the collecting device, after the spiral pipe is machined, the clamping assembly runs to the collecting device along with the second rotating platform, the movable clamping arm moves outwards to expand the opening, the machined spiral pipe on the clamping assembly falls onto the collecting device, and the conveying belt is arranged on the collecting device and is flexible, so that the spiral pipe cannot be damaged when falling onto the conveying belt and can be conveyed downwards along with the conveying belt; meanwhile, an included angle A formed by the conveying ladder and the workbench is 25 degrees, and the conveying efficiency of the spiral pipe in the range is highest on the premise of stable conveying.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a multistation return bend equipment for producing spiral lamp, includes the workstation, its characterized in that: the workbench is provided with a straight pipe heating device, a longitudinal conveying device for continuously conveying straight pipes, a spiral forming device and a pipe bending device; the spiral forming device comprises a first fixed seat fixedly arranged on the workbench, a first rotating table and a plurality of spiral die heads uniformly arranged along the circumferential direction of the first rotating table; the first rotating platform is rotatably connected with the first fixed seat through a first motor fixedly arranged at the bottom of the workbench; the pipe bending device comprises a second fixed seat fixedly arranged on the workbench, a second rotating table, a clamping assembly which is arranged along the circumferential direction of the second rotating table and used for clamping a workpiece on the spiral forming device, a preheating device which is arranged below the second rotating table and used for secondarily heating the spiral lamp tube and a residual material bending device with a correction function; the second rotating platform is rotatably arranged on the second fixed seat through a second motor fixedly arranged at the bottom of the workbench; the preheating device comprises an outer ring preheating assembly and an inner ring preheating assembly, and the outer ring preheating assembly and the inner ring preheating assembly respectively do longitudinal reciprocating motion on the workbench through a first cylinder and a second cylinder which are fixedly arranged at the bottom of the workbench; and the excess material bending device is rotationally connected with the workbench.

2. The multi-station tube bending equipment for producing the spiral lamp tube according to claim 1, wherein: the straight pipe heating device comprises a left box body, a right box body matched with the left box body and a third air cylinder for controlling the left box body to transversely reciprocate; fixing grooves for placing straight pipes are formed in the contact surfaces of the left box body and the right box body; the third cylinder passes through support frame fixed mounting on the workstation, and the output and the left box fixed connection of the output shaft of this third cylinder.

3. The multi-station tube bending equipment for producing the spiral lamp tube according to claim 1, wherein: the longitudinal conveying device comprises a first transmission belt, a transverse moving assembly and a clamping part, wherein the first transmission belt is used for placing straight pipes to be processed and is uniformly distributed, the transverse moving assembly is used for receiving the straight pipes to be processed on the transmission belt, and the clamping part is used for clamping the heated straight pipes; the base of the first transmission belt is fixedly arranged on the support frame, and the surface of the first transmission belt is provided with a plurality of straight pipe placing grooves which are uniformly distributed; the transverse moving assembly comprises supporting seats fixedly arranged on two sides of the workbench, a transverse driving cylinder I fixedly arranged on the supporting seats and a supporting die matched with the fixing grooves on the left box body and the right box body, and the output end of a gas rod I of the transverse driving cylinder I is fixedly connected with the supporting die; the clamping part comprises a second longitudinal driving cylinder and a clamping arm; and the output end of the second air rod of the second longitudinal driving air cylinder is fixedly connected with the clamping arm.

4. The multi-station tube bending equipment for producing the spiral lamp tube according to claim 1, wherein: the top of the spiral forming device is provided with a piece taking device, and the piece taking device comprises an installation plate fixedly installed on a first rotating table through a second support rod, a sliding seat connected with the installation plate in a sliding mode and a piece taking part; the mounting plate is provided with a fourth cylinder for driving the sliding seat to slide transversely, and the output end of a gas rod IV of the fourth cylinder is fixedly connected with the sliding seat; and the bottom surface of the mounting plate is fixedly provided with a third longitudinal driving cylinder, and the output end of the third cylinder shaft of the third longitudinal driving cylinder is fixedly connected with the workpiece taking part.

5. The multi-station tube bending equipment for producing the spiral lamp tube according to claim 1, wherein: the clamping assembly comprises a fixed clamping arm and a movable clamping arm which are mutually matched, and a third rotating table and a fourth air cylinder are fixedly connected with the second rotating table through a vertical rod; the fixed clamping arm is fixedly arranged at the bottom of the third rotating platform, and the movable clamping arm is transversely connected with the third rotating platform in a sliding manner; an open slot is formed in the movable clamping arm; the fourth cylinder is fixedly arranged on the third rotating platform, the output end of the air rod IV of the fourth cylinder is used for pushing and pulling the pushing block of the movable clamping arm, and the pushing block is matched with the opening groove.

6. The multi-station tube bending equipment for producing the spiral lamp tube according to claim 1, wherein: the outer ring preheating assembly and the inner ring preheating assembly respectively comprise an igniter, a lifting base and a longitudinal driving cylinder IV for controlling the lifting base to longitudinally reciprocate; the longitudinal driving cylinder IV is fixedly arranged at the bottom of the workbench, and the output end of a longitudinal air rod of the longitudinal driving cylinder IV penetrates through the workbench to be fixedly connected with the lifting base; the igniter is fixedly arranged on the lifting base.

7. The multi-station tube bending equipment for producing the spiral lamp tube according to claim 6, wherein: the outer ring preheating assembly further comprises a first ignition cover, a first cavity is formed in the first ignition cover, the ignition cover is arranged in the first cavity, and a plurality of first fire outlet holes which are uniformly distributed are formed in the inner side wall of the first ignition cover; the inner diameter R of the first ignition cover is larger than the outer diameter R1 of the spiral pipe, and R-R1 is larger than 8 mm; the inner ring preheating assembly further comprises a second ignition cover, a second cavity is formed in the second ignition cover, the ignition cover is arranged in the second cavity, and a plurality of uniformly distributed second fire outlets are formed in the outer side wall of the second ignition cover; the outer diameter R2 of the second ignition cover is smaller than the inner diameter R3 of the spiral pipe, and R3-R2 are more than 8 mm.

8. The multi-station tube bending equipment for producing the spiral lamp tube according to claim 1, wherein: the excess material bending device comprises a spiral base and a spiral driving motor for driving the spiral base; the output end of the spiral driving motor penetrates through the bottom fixed connection of the workbench and the rotary base, a correction frame for correcting the spiral pipe is arranged on the rotary base, a vertical driving cylinder five is arranged on the lower bottom surface of the spiral base, and the vertical driving cylinder five is fixedly installed on the workbench and vertically drives one end, away from the workbench, of a gas rod five of the cylinder five and is fixedly connected with the spiral base.

9. The multi-station tube bending apparatus for producing helical tubes according to claim 8, wherein: the working table is provided with a collecting device for automatically collecting the processed spiral tube, and the collecting device comprises a conveying ladder and a large motor for driving the conveying ladder; the conveying ladder is fixedly arranged on the workbench, and baffles for preventing finished products from rolling off the conveying ladder are arranged on two sides of the conveying ladder; the included angle formed by the conveying ladder and the workbench is more than 35 degrees and more than 20 degrees; the large motor is fixedly connected with the workbench.