CN215786308U - Automatic leg rest tube forming machine - Google Patents

Abstract

The utility model relates to an automatic leg-rest pipe forming machine, which comprises an automatic pipe bending machine, wherein the automatic pipe bending machine comprises a rotary worktable, a shell of the rotary worktable is fixedly connected with a pressing assembly, a rotating table of the rotary worktable is fixedly connected with a seat plate and a pipe bending wheel die, the automatic pipe bending machine is provided with a rack, the rack is sequentially provided with a stepped feeder, a welding line recognition mechanism, a feeding mechanism and a bilateral punching mechanism from left to right, the seat plate and the pipe bending wheel die are fixedly connected with a rotating shaft of the rotary worktable, the welding line recognition mechanism comprises a rotating motor, a rotating roller, a bracket and a displacement sensor, the rotary worktable is provided with a blanking mechanism and a fixed core penetrating assembly, and the seat plate is provided with a pipe end punching mechanism and a pipe end core penetrating mechanism. The leg rest pipe punching and bending machine can complete punching and bending of the leg rest pipe on one device, improves production efficiency and reduces labor intensity of workers.

Description

Automatic leg rest tube forming machine

Technical Field

The utility model relates to the field of production and processing equipment of leg rest tubes, in particular to an automatic forming machine of the leg rest tubes.

Background

The frame of current sharing bicycle is formed by multiple pipe fitting welding equipment, the leg of frame leans on the pipe also to be one of them pipe fitting, the leg leans on the pipe to need punch a hole and buckle processing to its many places in the production course of working, current production technology need accomplish processing on many equipment, lean on the pipe to arrange the leg in automatic bending machine and buckle to and use the hydro-cylinder to lean on the pipe to punch a hole the processing, whole production process, the process is more, need the workman to transport many times and the pipe is managed in the clamping, production efficiency is lower, workman intensity of labour is great.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is: the utility model provides a leg is by pipe automatic molding machine can accomplish the processing of punching a hole and buckling to the leg is by the pipe on a equipment, improves production efficiency, reduces workman intensity of labour.

In order to achieve the above purpose, the present invention provides the following technical solutions: the automatic leg-leaning pipe forming machine is provided with an automatic pipe bending machine, the automatic pipe bending machine comprises a rotary workbench, a pressing assembly is fixedly connected to a shell of the rotary workbench, a seat plate and a pipe bending wheel die are fixedly connected to a rotating table of the rotary workbench, a rack is provided, a stepped feeder, a welding line recognition mechanism, a feeding mechanism and a bilateral punching mechanism are sequentially arranged on the rack from left to right, the automatic pipe bending machine is positioned on the right side of the bilateral punching mechanism, the pressing assembly is fixedly connected with the rotary workbench, the seat plate and the pipe bending wheel die are fixedly connected with a rotating shaft of the rotary workbench, the welding line recognition mechanism comprises a rotating motor, a rotating wheel set, a bracket and a displacement sensor, a blanking mechanism and a fixed core penetrating assembly are arranged on the rotary workbench, the seat plate is provided with a punching pipe end mechanism and a pipe end core penetrating mechanism, and the feeding mechanism comprises a feeding XY moving module, a feeding mechanism, a pressing assembly and a pressing assembly are arranged on the rotating table, and a pressing assembly is arranged on the base plate, and a pressing assembly is arranged on the base plate, and a pressing assembly is arranged on the base, and a pressing assembly is arranged on the base, and a pressing assembly is arranged on a pressing assembly, and a, A first cylinder, a second cylinder, a first inner support chuck, a second inner support chuck, a mounting plate and a rotary cylinder, the double-side punching mechanism comprises a lifting cylinder, a waste material slide way, a guide material way, a material carrying seat, a side hole core penetrating oil cylinder, a side hole supporting tube, a side hole punching oil cylinder, a side hole cutter, a pressing base, a pressing oil cylinder, a pressing plate, a top punching oil cylinder, a top punching cutter and a lifting plate, the blanking mechanism comprises a blanking XY moving module, a blanking seat and a clamping jaw air cylinder, the pipe end punching mechanism comprises a pipe end punching oil cylinder and an end punching cutter, the pipe end core penetrating mechanism comprises a pipe end core penetrating oil cylinder, a pipe end supporting pipe and a pipe end dislocation oil cylinder, the fixed core penetrating assembly comprises a fixed core penetrating oil cylinder and a fixed supporting pipe, the rotary worktable is characterized in that a fixed punching oil cylinder is fixedly connected to a shell of the rotary worktable, and a fixed punching knife is fixedly connected to a piston rod of the fixed punching oil cylinder.

Further, support and displacement sensor all with frame threaded connection, it specifically has two to rotate the wheelset, and two rotate the wheelset all with support rotatable coupling, rotate motor and support threaded connection, the output that rotates the motor passes through synchronous belt drive wheelset and two rotate the wheelset and be connected.

Further, pay-off XY removes module and frame threaded connection, pay-off XY removes the mobile station and the mounting panel threaded connection of module, the overcoat of first cylinder and first internal stay chuck all with the right-hand member threaded connection of mounting panel, the piston rod of first cylinder and the dabber threaded connection of first internal stay chuck, second cylinder and revolving cylinder all with the left end threaded connection of mounting panel, the overcoat of second internal stay chuck and revolving cylinder's rotation platform fixed connection, the piston rod of second cylinder passes revolving cylinder middle part through-hole and the dabber threaded connection of second internal stay chuck.

Furthermore, the lifting cylinder, the waste material slide way, the material loading seat, the side hole core penetrating oil cylinder, the side hole punching oil cylinder and the pressing base are all in threaded connection with the frame, the side hole cutter is fixedly connected with a piston rod of the side hole punching oil cylinder, the side hole supporting tube is fixedly connected with a piston rod of the side hole core penetrating oil cylinder, through holes are respectively arranged on the two sides and the upper part of the side hole supporting tube, and an air blowing channel is arranged inside the side hole supporting tube, the guide material channel is fixedly connected with a piston rod of the lifting cylinder, the lifting plate and the pressing base can be connected up and down in a sliding manner, the pressing oil cylinder is in threaded connection with the pressing base, a piston rod of the pressing oil cylinder is in threaded connection with the lifting plate, the top punching oil cylinder and the pressing plate are respectively in threaded connection with the upper side and the lower side of the lifting plate, the top punching cutter and the pressing plate can be connected in a vertical sliding mode, and a piston rod of the top punching oil cylinder is fixedly connected with the top punching cutter.

Further, the blanking seat is in threaded connection with a shell of the rotary workbench, the blanking XY moving module is in threaded connection with the blanking seat, and the clamping jaw cylinder is in threaded connection with a moving platform of the blanking XY moving module.

Further, the pipe end punching oil cylinder is in threaded connection with the seat plate, the end punching cutter is in slidable connection with the pipe bending wheel die, and a piston rod of the pipe end punching oil cylinder is in threaded connection with the end punching cutter.

Further, the pipe end dislocation oil cylinder is in threaded connection with the seat plate, the pipe end core penetrating oil cylinder is in slidable connection with the seat plate, a piston rod of the pipe end core penetrating oil cylinder is in threaded connection with the pipe end supporting pipe, and a piston rod of the pipe end dislocation oil cylinder is fixedly connected with the pipe end core penetrating oil cylinder.

Furthermore, the fixed core-penetrating oil cylinder is in threaded connection with a shell of the rotary workbench, and the fixed supporting tube is fixedly connected with a piston rod of the fixed core-penetrating oil cylinder.

The utility model has the beneficial effects that: the leg rest pipe punching and bending machine has the advantages that the step type feeding machine, the welding line recognition mechanism, the feeding mechanism and the bilateral punching mechanism are matched for use, punching and bending of the leg rest pipe can be completed on one device, production efficiency is improved, and labor intensity of workers is reduced.

Drawings

FIG. 1 is a schematic view of an overall first perspective of an automatic leg rest tube forming machine according to the present invention;

FIG. 2 is a schematic view of an overall second perspective of the automatic leg rest tube forming machine of the present invention;

FIG. 3 is a schematic view of a first perspective of a double-sided punching mechanism of the automatic leg rest tube forming machine of the present invention;

FIG. 4 is a schematic view of a second perspective of the double-sided punching mechanism of the automatic leg rest tube forming machine of the present invention;

FIG. 5 is a schematic view of the compression base of the automatic leg rest tube forming machine of the present invention;

FIG. 6 is a schematic view of the waste chute of the automatic leg rest tube molding machine of the present invention;

FIG. 7 is a schematic view of a first perspective of a blanking mechanism of the automatic leg rest tube forming machine of the present invention;

FIG. 8 is a schematic view of a second perspective of the blanking mechanism of the automatic leg rest tube forming machine of the present invention;

FIG. 9 is a schematic view of an automatic pipe bender for an automatic leg rest pipe forming machine according to the present invention.

In the figure: 1. a frame; 2. a step-type feeder; 3. a weld joint recognition mechanism; 301. rotating the motor; 302. a rotating wheel set; 303. a support; 304. a displacement sensor; 4. a feeding mechanism; 401. a feeding XY moving module; 402. a first cylinder; 403. a second cylinder; 404. a first inner support collet; 405. a second inner support chuck; 406. mounting a plate; 407. a rotating cylinder; 5. a bilateral punching mechanism; 501. a lifting cylinder; 502. a waste chute; 503. a material guiding channel; 504. a material loading seat; 505. a side hole core penetrating oil cylinder; 506. a side hole supporting tube; 507. punching an oil cylinder at a side hole; 508. a side hole cutter; 509. pressing the base; 510. a pressing oil cylinder; 511. pressing a plate; 512. a top punching oil cylinder; 513. a top punching cutter; 514. a lifting plate; 601. rotating the working table; 602. a compression assembly; 603. a seat plate; 604. bending a pipe wheel die; 7. a blanking mechanism; 701. blanking XY moving module; 702. a blanking seat; 703. a clamping jaw cylinder; 8. a pipe end punching mechanism; 801. a pipe end punching oil cylinder; 802. an end punching knife; 9. a pipe end core penetrating mechanism; 901. the pipe end penetrates through the core oil cylinder; 902. a pipe end supporting pipe; 903. the pipe end is dislocated with the oil cylinder; 10. fixing the core penetrating assembly; 1001. fixing the core-penetrating oil cylinder; 1002. fixing the supporting tube; 11. fixing the punching oil cylinder; 12. and (5) fixing the punching knife.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1-9, the automatic leg-rest tube forming machine comprises an automatic tube bending machine, the automatic tube bending machine comprises a rotary workbench 601, a pressing assembly 602 is fixedly connected to a housing of the rotary workbench 601, a seat plate 603 and a tube bending wheel mold 604 are fixedly connected to a rotary table of the rotary workbench 601, the automatic tube bending machine comprises a frame 1, a step-type feeder 2, a weld recognition mechanism 3, a feeding mechanism 4 and a double-side punching mechanism 5 are sequentially arranged on the frame 1 from left to right, the automatic tube bending machine is located at the right side of the double-side punching mechanism 5, the pressing assembly 602 is fixedly connected to the rotary workbench 601, the seat plate 603 and the tube bending wheel mold 604 are fixedly connected to a rotating shaft of the rotary workbench 601, the weld recognition mechanism 3 comprises a rotating motor 301, a rotating 302, a bracket 303 and a displacement sensor 304, a blanking mechanism 7 and a fixed core-penetrating assembly 10 are arranged on the rotary workbench 601, the pipe end punching mechanism 8 and the pipe end core penetrating mechanism 9 are arranged on the seat plate 603, the feeding mechanism 4 comprises a feeding XY moving module 401, a first air cylinder 402, a second air cylinder 403, a first inner support chuck 404, a second inner support chuck 405, a mounting plate 406 and a rotating air cylinder 407, the double-side punching mechanism 5 comprises a lifting air cylinder 501, a waste material slide 502, a guide material channel 503, a material loading seat 504, a side hole core penetrating oil cylinder 505, a side hole support tube 506, a side hole punching oil cylinder 507, a side hole cutter 508, a pressing base 509, a pressing oil cylinder 510, a pressing plate 511, a top punching oil cylinder 512, a top punching knife 513 and a lifting plate 514, the blanking mechanism 7 comprises a blanking XY moving module 701, a blanking seat 702 and a clamping jaw air cylinder, the pipe end punching mechanism 8 comprises a pipe end punching oil cylinder 801 and an end punching knife 802, the pipe end core penetrating mechanism 9 comprises a pipe end core penetrating oil cylinder 901, a support tube 902 and a pipe end dislocation oil cylinder 903, the fixed core-penetrating assembly 10 comprises a fixed core-penetrating oil cylinder 1001 and a fixed supporting pipe 1002, a fixed punching oil cylinder 11 is fixedly connected to a shell of the rotary workbench 601, and a fixed punching knife 12 is fixedly connected to a piston rod of the fixed punching oil cylinder 11.

Support 303 and displacement sensor 304 all with frame 1 threaded connection, it specifically has two to rotate wheelset 302, and two rotate wheelset 302 all with support 303 rotatable coupling, rotate motor 301 and support 303 threaded connection, the output that rotates motor 301 passes through synchronous belt drive wheelset and is connected with two rotation wheelset 302.

The feeding XY moving module 401 is in threaded connection with the rack 1, a moving platform of the feeding XY moving module 401 is in threaded connection with the mounting plate 406, jackets of the first air cylinder 402 and the first inner support chuck 404 are in threaded connection with the right end of the mounting plate 406, a piston rod of the first air cylinder 402 is in threaded connection with a mandrel of the first inner support chuck 404, the second air cylinder 403 and the rotary air cylinder 407 are in threaded connection with the left end of the mounting plate 406, a jacket of the second inner support chuck 405 is fixedly connected with a rotating platform of the rotary air cylinder 407, and a piston rod of the second air cylinder 403 penetrates through a through hole in the middle of the rotary air cylinder 407 and is in threaded connection with the mandrel of the second inner support chuck 405.

Lifting cylinder 501, waste slide 502, carry material seat 504, side opening punching cylinder 505, side opening punching cylinder 507 and compress tightly base 509 all with frame 1 threaded connection, the piston rod fixed connection of side opening cutter 508 and side opening punching cylinder 507, the piston rod fixed connection of side opening supporting tube 506 and side opening punching cylinder 505, both sides and upper portion all opened the through-hole on the side opening supporting tube 506, and inside the opening of side opening supporting tube 506 has the air-blowing way, direction material way 503 and lifting cylinder 501's piston rod fixed connection, but lifter plate 514 and compress tightly base 509 sliding connection from top to bottom, pressing cylinder 510 and compress tightly base 509 threaded connection, the piston rod and lifter plate 514 threaded connection of pressing cylinder 510, top punching cylinder 512 and clamp plate 511 respectively with the upper and lower both sides threaded connection of lifter plate 514, but top punching cutter 513 and clamp plate 511 sliding connection from top to bottom, and a piston rod of the top punching oil cylinder 512 is fixedly connected with a top punching knife 513.

The blanking seat 702 is in threaded connection with a shell of the rotary workbench 601, the blanking XY moving module 701 is in threaded connection with the blanking seat 702, and the clamping jaw air cylinder 703 is in threaded connection with a moving platform of the blanking XY moving module 701.

The pipe end punching oil cylinder 801 is in threaded connection with the seat plate 603, the end punching cutter 802 is in slidable connection with the pipe bending wheel die 604, and a piston rod of the pipe end punching oil cylinder 801 is in threaded connection with the end punching cutter 802.

The pipe end dislocation cylinder 903 is in threaded connection with the seat plate 603, the pipe end core penetrating cylinder 901 is in slidable connection with the seat plate 603, a piston rod of the pipe end core penetrating cylinder 901 is in threaded connection with the pipe end supporting pipe 902, and a piston rod of the pipe end dislocation cylinder 903 is fixedly connected with the pipe end core penetrating cylinder 901.

The fixed core-penetrating oil cylinder 1001 is in threaded connection with a shell of the rotary workbench 601, and the fixed support pipe 1002 is fixedly connected with a piston rod of the fixed core-penetrating oil cylinder 1001.

The working principle of the utility model is as follows: when the utility model is used, a pipe fitting raw material is fed to a welding seam recognition mechanism 3 by a stepped feeder 2, then a rotating wheel set 302 is driven to rotate by a rotating motor 301 to enable the pipe fitting to rotate until a displacement sensor 304 senses the welding seam of the pipe fitting raw material, at the moment, the rotating motor 301 stops rotating, then a second air cylinder 403 and a feeding XY moving module 401 of a feeding mechanism 4 feed the pipe fitting raw material to a double-side punching mechanism 5, after the pipe fitting raw material is fed to a material loading seat 504, a pressing oil cylinder 510 drives a lifting plate 514 to descend, a pressing plate 511 presses the pipe fitting raw material onto the material loading seat 504, then a side hole core penetrating oil cylinder 505 drives a side hole supporting pipe 506 to be inserted into the pipe fitting raw material, then a top punching oil cylinder 512 and a side hole core penetrating oil cylinder 505 sequentially punch the two sides and the top of the pipe fitting raw material, after the double-side punching mechanism 5 finishes punching, a piston rod of the lifting air cylinder 501 extends out, the air inflation channel of the side hole supporting tube 506 blows punched waste materials into the guiding material channel 503 to be discharged through the waste material slide channel 502, after the waste materials are removed, the piston rod of the lifting air cylinder 501 is retracted, then the second air cylinder 403 of the feeding mechanism 4 drives the second inner supporting chuck 405 to clamp the pipe fitting raw materials, the outer sleeve of the second inner supporting chuck 405 is driven by the rotating air cylinder 407 to rotate for 90 degrees for reversing, and the pipe fitting raw materials are conveyed to the automatic pipe bending machine through the feeding XY moving module 401, at the moment, the pressing assembly 602 of the automatic pipe bending machine presses the pipe fitting raw materials, then the piston rods of the pipe end core penetrating oil cylinder 901 and the fixed core penetrating oil cylinder 801 extend out, the pipe fitting raw materials are punched by the pipe end punching oil cylinder and the fixed punching oil cylinder 11, the fixed supporting tube 1002 and the pipe end supporting tube 902 are respectively provided with a position yielding hole corresponding to the fixed punching knife 12 and the end punching knife 802, and after the punching is completed, the pipe fitting is bent by the automatic pipe bending machine, after bending is finished, the blanking XY moving module 701 drives the clamping jaw air cylinder 703 to unload the bent pipe fitting.

The above examples are intended to further illustrate the present invention, but are not intended to limit the utility model to these specific embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be understood to be within the protection scope of the present invention.

Claims (8)

1. Leg leans on a tub automatic molding machine, has automatic bending machine, automatic bending machine includes swivel work head (601), and fixedly connected with compresses tightly subassembly (602) on the casing of swivel work head (601), fixedly connected with bedplate (603) and return bend wheel mould (604) on the rotation bench of swivel work head (601), its characterized in that: the automatic pipe bending machine is characterized by comprising a rack (1), wherein a stepped feeder (2), a welding seam recognition mechanism (3), a feeding mechanism (4) and a double-side punching mechanism (5) are sequentially arranged on the rack (1) from left to right, the automatic pipe bending machine is positioned on the right side of the double-side punching mechanism (5), a pressing assembly (602) is fixedly connected with a rotary workbench (601), a seat plate (603) and a pipe bending wheel die (604) are fixedly connected with a rotating shaft of the rotary workbench (601), the welding seam recognition mechanism (3) comprises a rotating motor (301), a rotating wheel set (302), a support (303) and a displacement sensor (304), a blanking mechanism (7) and a fixed core penetrating assembly (10) are arranged on the rotary workbench (601), a pipe end punching mechanism (8) and a pipe end core penetrating mechanism (9) are arranged on the seat plate (603), and the feeding mechanism (4) comprises a feeding XY moving module (401), The automatic pipe end punching device comprises a first air cylinder (402), a second air cylinder (403), a first inner supporting chuck (404), a second inner supporting chuck (405), a mounting plate (406) and a rotating air cylinder (407), wherein the double-side punching mechanism (5) comprises a lifting air cylinder (501), a waste material slide way (502), a guide material channel (503), a material carrying seat (504), a side hole core punching oil cylinder (505), a side hole supporting pipe (506), a side hole punching oil cylinder (507), a side hole cutter (508), a pressing base (509), a pressing oil cylinder (510), a pressing plate (511), a top punching oil cylinder (512), a top punching cutter (513) and a lifting plate (514), the blanking mechanism (7) comprises a blanking XY moving module (701), a blanking seat (702) and a clamping jaw air cylinder (703), the pipe end punching mechanism (8) comprises a pipe end punching oil cylinder (801) and an end punching cutter (802), and the pipe end core punching mechanism (9) comprises a pipe end core punching oil cylinder (901), The pipe end support pipe (902) and pipe end dislocation hydro-cylinder (903), fixed core penetrating subassembly (10) is including fixed core penetrating hydro-cylinder (1001) and fixed support pipe (1002), fixedly connected with fixes the hydro-cylinder (11) that punches a hole on the casing of swivel work head (601), fixedly connected with fixes the punching cutter (12) on the piston rod of fixed hydro-cylinder (11) that punches a hole.

2. The automatic leg rest tube forming machine of claim 1, wherein: support (303) and displacement sensor (304) all with frame (1) threaded connection, it specifically has two to rotate wheelset (302), and two rotate wheelset (302) all with support (303) rotatable coupling, rotate motor (301) and support (303) threaded connection, the output that rotates motor (301) passes through synchronous belt drive wheelset and two rotate wheelset (302) and be connected.

3. The automatic leg rest tube forming machine of claim 1, wherein: the feeding XY moving module (401) is in threaded connection with the rack (1), a moving platform of the feeding XY moving module (401) is in threaded connection with the mounting plate (406), jackets of the first air cylinder (402) and the first inner support chuck (404) are in threaded connection with the right end of the mounting plate (406), a piston rod of the first air cylinder (402) is in threaded connection with a mandrel of the first inner support chuck (404), the second air cylinder (403) and the rotary air cylinder (407) are in threaded connection with the left end of the mounting plate (406), a jacket of the second inner support chuck (405) is fixedly connected with a rotating platform of the rotary air cylinder (407), and a piston rod of the second air cylinder (403) penetrates through a middle through hole of the rotary air cylinder (407) and is in threaded connection with the mandrel of the second inner support chuck (405).

4. The automatic leg rest tube forming machine of claim 1, wherein: the utility model discloses a pneumatic cutting machine, including lift cylinder (501), waste material slide (502), year material seat (504), side opening punch cylinder (505), side opening punch cylinder (507) and compress tightly base (509) all with frame (1) threaded connection, the piston rod fixed connection of side opening cutter (508) and side opening punch cylinder (507), the piston rod fixed connection of side opening stay tube (506) and side opening punch cylinder (505), the through-hole has all been opened on both sides and upper portion on side opening stay tube (506), and inside the opening of side opening stay tube (506) has the air blowing way, piston rod fixed connection of direction material way (503) and lift cylinder (501), but lifter plate (514) and compress tightly base (509) sliding connection from top to bottom, compress tightly cylinder (510) and compress tightly base (509) threaded connection, the piston rod and lifter plate (514) threaded connection of compressing tightly cylinder (510), the top punching oil cylinder (512) and the pressing plate (511) are in threaded connection with the upper side and the lower side of the lifting plate (514) respectively, the top punching knife (513) is in sliding connection with the pressing plate (511) up and down, and a piston rod of the top punching oil cylinder (512) is fixedly connected with the top punching knife (513).

5. The automatic leg rest tube forming machine of claim 1, wherein: the blanking seat (702) is in threaded connection with a shell of the rotary workbench (601), the blanking XY moving module (701) is in threaded connection with the blanking seat (702), and the clamping jaw air cylinder (703) is in threaded connection with a moving platform of the blanking XY moving module (701).

6. The automatic leg rest tube forming machine of claim 1, wherein: the pipe end punching oil cylinder (801) is in threaded connection with the seat plate (603), the end punching cutter (802) is in slidable connection with the pipe bending wheel die (604), and a piston rod of the pipe end punching oil cylinder (801) is in threaded connection with the end punching cutter (802).

7. The automatic leg rest tube forming machine of claim 1, wherein: the pipe end dislocation oil cylinder (903) is in threaded connection with the seat plate (603), the pipe end core penetrating oil cylinder (901) is in slidable connection with the seat plate (603), a piston rod of the pipe end core penetrating oil cylinder (901) is in threaded connection with the pipe end supporting pipe (902), and a piston rod of the pipe end dislocation oil cylinder (903) is fixedly connected with the pipe end core penetrating oil cylinder (901).

8. The automatic leg rest tube forming machine of claim 1, wherein: the fixed core-penetrating oil cylinder (1001) is in threaded connection with a shell of the rotary workbench (601), and the fixed supporting tube (1002) is fixedly connected with a piston rod of the fixed core-penetrating oil cylinder (1001).

Images