CN112157150A

CN112157150A - Bidirectional synchronous bending device for square tubes for mechanical equipment production and assembly

Info

Publication number: CN112157150A
Application number: CN202010912447.1A
Authority: CN
Inventors: 林召怀
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-09-03
Filing date: 2020-09-03
Publication date: 2021-01-01

Abstract

The invention provides a bidirectional synchronous bending device for square tubes for production and assembly of mechanical equipment, which comprises an arc-shaped base plate; the outside of arc backing plate still slidable mounting respectively has L type support frame A, and L type support frame A passes through the cardboard slidable mounting of its bottom in adjustment tank A, the bottom of cardboard still is connected with a screw thread section of thick bamboo, and alternates respectively and has engaged adjusting screw in the screw thread section of thick bamboo, actuating mechanism installs the inboard of processing platform and is connected with the return bend linkage gear drive on the return bend mechanism, the front end of the push rod of unloading is U type structure and is connected with two sets of L type support frames B, passes U type frame and cover after the rear end of the push rod of unloading is connected with the interior baffle and is equipped with reset spring. Drive two sets of L type support frame A synchronous sliding adjustment through adjusting screw to the length that can make square pipe both ends after bending remains unanimous throughout, through promoting outer baffle, the square pipe after pushing to bend through L type support frame B is deviate from, loosens the return under reset spring and interior baffle's effect.

Description

Bidirectional synchronous bending device for square tubes for mechanical equipment production and assembly

Technical Field

The invention belongs to the technical field of machining, and particularly relates to a bidirectional synchronous bending machining device for square tubes for production and assembly of mechanical equipment.

Background

The square tube is a thin-wall steel tube with a hollow square cross section, the steel tube is also called a steel cold-bending section, and the steel tube has excellent mechanical property, acid-base corrosion resistance and weather resistance and excellent welding processing property, so the steel tube has wide application in the fields of production, construction, petrochemical industry, electric power engineering, mechanical manufacturing and the like. The square tube is generally in standard specification when using, so often need carry out secondary operation on the scene, and the processing mode has welding, bending and tailors, meets the condition that needs the bending in present practical application.

If the application number is: in CN 201710558844.1's patent, a multitube bender for machining is disclosed, including first slide rail, fixed case, processing case and fixed mould, be fixed with the rack on the first slide rail, fixed case passes through fixed column and first sliding block interconnect, pneumatic cylinder and tubular product bed plate interconnect, the axis of rotation is installed on the top of fixed case, processing case and first slide rail interconnect, second sliding block and spliced pole interconnect, slip bar hole sets up on the processing case, fixed mould is fixed on the processing case. This multi-tube bending machine for machining, the installation is lower with daily maintenance's cost, and it is more convenient to operate, can bend the operation simultaneously to many tubular products, uses the pneumatic cylinder to carry out providing of power to the process of bending, and the effect of bending is better, uses portable position's mould head, and the use of cooperation fixed mould is laid and is taken out tubular product more convenient, great improvement the whole efficiency that tubular product was bent.

Based on the above, when traditional square pipe is bent and processed, the length of the square pipe is changed, the square pipe needs to be measured and adjusted again, the adjustment is troublesome, the length of the bent square pipe at two ends can not be kept consistent, the square pipe is easy to clamp between a fixed wheel and a bending rotating wheel after the bending processing is finished, the square pipe needs to be taken out by manually knocking two ends of the bent square pipe, and the adjustment is troublesome.

Disclosure of Invention

In order to solve the technical problems, the invention provides a bidirectional synchronous bending device for a square pipe for production and assembly of mechanical equipment, which aims to solve the problems that after the length of the square pipe is changed, the square pipe needs to be measured and adjusted again, the bending length of two ends of the square pipe cannot be kept consistent, and after the bending processing is finished, the square pipe is easily clamped between a fixed wheel and a bending rotating wheel, and the square pipe needs to be taken out by manually knocking the two ends of the bent square pipe.

The invention relates to a square tube bidirectional synchronous bending device for mechanical equipment production and assembly, which has the purpose and the effect achieved by the following specific technical means:

the bidirectional synchronous bending processing device for the square tube for production and assembly of mechanical equipment comprises a tube bending mechanism, a driving mechanism and a discharging push rod; the pipe bending mechanism is provided with two sets of pipe bending mechanisms and rotates respectively to be installed in the two sides of the processing platform, the bottom sides of the pipe bending mechanisms are provided with arc-shaped base plates, the arc-shaped base plates are symmetrically arranged at the two ends of the processing platform, the outer sides of the arc-shaped base plates are respectively provided with an L-shaped support frame A, the L-shaped support frames A are slidably arranged in the adjusting groove A through clamping plates at the bottoms of the L-shaped support frames A, the bottoms of the clamping plates are further connected with threaded cylinders, adjusting screw rods are respectively inserted and meshed in the threaded cylinders, the driving mechanism is arranged on the inner side of the processing platform and connected with the pipe bending linkage gear on the pipe bending mechanism in a transmission mode, the front end of the discharging push rod is of a U-shaped structure and is connected with two sets of L-shaped support frames B, the rear end.

Further, adjusting screw's outer end still is connected with the operation hand wheel, and one end is forward screw thread on the adjusting screw, and the other end is reverse screw thread, be equipped with forward screw thread in the screw thread section of thick bamboo of a set of L type support frame A bottom side and with adjusting screw on forward thread meshing, be equipped with reverse screw thread in the screw thread section of thick bamboo of another set of L type support frame A bottom side and with adjusting screw on reverse thread meshing, and wherein a set of L type support frame A's outer end passes through bolt fixedly connected with limiting plate, and the limiting plate is established in the one side of keeping away from the operation hand wheel.

Further, the pipe bending mechanism comprises an adjusting frame, a fixed pipe bending wheel, a sliding pipe bending wheel and a pipe bending shaft, the fixed pipe bending wheel is provided with a set of pipe bending wheels and is installed at the front end of the inner side of the adjusting frame in a rotating mode through a rotary drum, the sliding pipe bending wheel is provided with two sets of pipe bending wheels and is installed on the inner side of the adjusting frame in a sliding mode, a rotating shaft of the sliding pipe bending wheel penetrates into an adjusting groove B in a sliding mode respectively and is clamped through bolts, the pipe bending shaft penetrates into the rotary drum in a rotating mode, the upper end and the lower end of the pipe bending shaft are fixedly connected with the adjusting frame through L-shaped connecting rods respectively, and a.

Furthermore, four groups of universal balls are further embedded at the bottom of the rear side of the adjusting frame, and the bottoms of the universal balls are attached to the arc-shaped base plate.

Further, still be connected with the I-shaped link between the slidingtype return bend wheel, and the pivot of two sets of slidingtype return bend wheels still rotates respectively and passes the both sides of I-shaped link, and the outer end of I-shaped link is connected with T type and adjusts the pole, and the cover is equipped with clamping spring and outwards wears out the adjusting frame on the T type regulation pole.

Furthermore, actuating mechanism is including manual operation axle, first drive shaft, second drive shaft, the manual operation axle transversely rotates and installs the inboard at processing platform, and the outer end of manual operation axle still is connected with the operation handle, is connected through bevel gear group transmission between manual operation axle and the first drive shaft, installs first drive gear on the first drive shaft, and is connected through chain drive between first drive shaft and the second drive shaft, installs second drive gear on the second drive shaft.

Furthermore, 1/4 circles of latch teeth are arranged on the first driving gear, when the first driving shaft rotates, the first driving gear is meshed with the reverse driving gear, the transmission ratio between the first driving gear and the reverse driving gear is 4:1, the reverse driving gear is fixedly installed on the transition shaft, the reverse driving gear is also meshed with the bent pipe linkage gears on the group of bent pipe mechanisms, and the transmission ratio between the reverse driving gear and the bent pipe linkage gears is 1: 1.

furthermore, 1/4 circles of clamping teeth are also arranged on the second driving gear, when the second driving shaft rotates, the second driving gear is meshed and connected with the bent pipe linkage gear on the other group of bent pipe mechanisms, and the transmission ratio between the second driving gear and the bent pipe linkage gear is 4: 1.

Furthermore, when the latch on the first driving gear is just meshed with the reverse driving gear, the latch on the second driving gear is also just meshed with the elbow linkage gear.

The invention at least comprises the following beneficial effects:

1. according to the invention, two groups of L-shaped support frames A are arranged, the limiting plates are connected to the outer sides of the L-shaped support frames A, and the two groups of L-shaped support frames A can be driven by the adjusting screw rods to synchronously slide and adjust in the adjusting grooves A, so that when a square pipe is placed on the two groups of L-shaped support frames A, one end of the square pipe is attached to the limiting plate, and the other end of the square pipe is flush with the outer ends of the L-shaped support frames A and is attached to the limiting plate, the lengths of the two ends of the square pipe after.

2. According to the invention, by arranging the pipe bending mechanism and the driving mechanism, two groups of adjusting frames can be driven to rotate 90 degrees around the rotary drum respectively by operating the manual operating shaft, the bidirectional bending processing of the square pipe is synchronously completed, and meanwhile, the universal ball is embedded at the rear end of the bottom side of the adjusting frame, so that the adjusting frame is more beneficial to rotating on the arc-shaped base plate.

3. According to the invention, the discharging push rod is arranged, after the square tube is bent in two directions, the outer baffle is pushed, the L-shaped support frame B at the front end of the discharging push rod is driven to push the bent square tube to be separated from the fixed type bent tube wheel and the sliding type bent tube wheel, and the discharging push rod and the L-shaped support frame B can return to the original positions under the action of the reset spring and the inner baffle after the outer baffle is loosened.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of another structure of fig. 1 according to the present invention.

Fig. 3 is a structural schematic diagram of a group of pipe bending mechanisms in fig. 1 after the top end of an adjusting frame is cut.

Fig. 4 is an enlarged schematic view of the structure of fig. 3 a according to the present invention.

FIG. 5 is a schematic structural view of the processing platform shown in FIG. 2 after being cut by the internal cross plate and one end of the processing platform.

Fig. 6 is an enlarged view of the structure of fig. 5B according to the present invention.

Fig. 7 is an enlarged view of the structure of fig. 5 at C according to the present invention.

Fig. 8 is a schematic view of the present invention with one set of elbow mechanisms removed from fig. 1.

Fig. 9 is a schematic structural view of the pipe bending mechanism according to the present invention.

Fig. 10 is a schematic view of the bent square tube of fig. 1 according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a processing platform; 101. an arc-shaped base plate; 102. an adjusting groove A; 103. a U-shaped frame; 2. an L-shaped support frame A; 201. clamping a plate; 2011. a threaded barrel; 202. a limiting plate; 3. adjusting the screw rod; 4. a pipe bending mechanism; 401. an adjusting frame; 4011. an adjusting groove B; 4012. a ball transfer unit; 402. a fixed pipe bending wheel; 4021. a rotating drum; 403. a sliding type pipe bending wheel; 4031. an I-shaped connecting frame; 4032. a T-shaped adjusting rod; 4033. a clamping spring; 404. bending a pipe shaft; 4041. an L-shaped connecting rod; 4042. a bent pipe linkage gear; 5. a drive mechanism; 501. a manually operated shaft; 502. a first drive shaft; 5021. a first drive gear; 503. a transition shaft; 5031. a reverse drive gear; 504. a second drive shaft; 5041. a second drive gear; 6. a discharging push rod; 601. an L-shaped support frame B; 602. an inner baffle; 603. an outer baffle; 604. a return spring.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "coaxial," "bottom," "one end," "top," "middle," "other end," "upper," "side," "top," "inner," "front," "center," "two ends," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing and simplifying the description, and are not intended to indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, and for example, they may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the terms may be directly connected or indirectly connected through an intermediate, and may be communication between two elements or interaction relationship between two elements, unless otherwise specifically limited, and the specific meaning of the terms in the present invention will be understood by those skilled in the art according to specific situations.

Example (b):

as shown in figures 1 to 10:

the invention provides a bidirectional synchronous bending device for square tubes for production and assembly of mechanical equipment, which comprises a tube bending mechanism 4, a driving mechanism 5 and a discharging push rod 6; the pipe bending mechanism 4 is provided with two groups which are respectively and rotatably arranged at two sides of the processing platform 1, the bottom side of the pipe bending mechanism 4 is provided with arc-shaped base plates 101, the arc-shaped base plates 101 are symmetrically arranged at two ends of the processing platform 1, the outer sides of the arc-shaped base plates 101 are respectively and slidably provided with an L-shaped support frame A2, the L-shaped support frame A2 is slidably arranged in the adjusting groove A102 through a clamping plate 201 at the bottom of the L-shaped support frame A, the bottom of the clamping plate 201 is also connected with a thread, and adjusting screw 3 is respectively inserted and engaged in the threaded cylinder 2011, the driving mechanism 5 is installed on the inner side of the processing platform 1 and is in transmission connection with a bent pipe linkage gear 4042 on the bent pipe mechanism 4, the front end of the discharging push rod 6 is of a U-shaped structure and is connected with two groups of L-shaped support frames B601, the rear end of the discharging push rod 6 is connected with an inner baffle 602, then penetrates through the U-shaped frame 103 and is sleeved with a reset spring 604, and the tail end of the discharging push rod 6 is further connected with an outer baffle 603.

Wherein, the outer end of the adjusting screw rod 3 is also connected with an operating hand wheel, one end of the adjusting screw rod 3 is provided with a forward thread, the other end is provided with a reverse thread, a thread cylinder 2011 at the bottom side of one group of L-shaped supporting frames A2 is internally provided with a forward thread and is meshed with the forward thread on the adjusting screw rod 3, a thread cylinder 2011 at the bottom side of the other group of L-shaped supporting frames A2 is internally provided with a reverse thread and is meshed with the reverse thread on the adjusting screw rod 3, and the outer end of one group of L-shaped supporting frames A2 is fixedly connected with a limiting plate 202 through a bolt, the limiting plate 202 is arranged at one side far away from the operating hand wheel, the adjusting screw rod 3 is rotated through the hand wheel according to the length of the square pipe, the two groups of L-shaped supporting frames A2 are driven to slide and adjust in the adjusting groove A102 synchronously, one end of the square pipe is attached to the limiting plate when the square pipe is arranged on the two groups of L-shaped supporting frames A, and the center of the square pipe is always in the center position between the two groups of pipe bending mechanisms 4 when the other end of the square pipe is leveled with the outer end of the L-shaped supporting frame A2.

Wherein, the pipe bending mechanism 4 includes an adjusting frame 401, a fixed pipe bending wheel 402, a sliding pipe bending wheel 403, a pipe bending shaft 404, the fixed pipe bending wheel 402 is provided with a set of pipe bending wheel and is rotatably installed at the front end of the inner side of the adjusting frame 401 through a rotary drum 4021, the sliding pipe bending wheel 403 is provided with two sets of pipe bending wheels and is slidably installed at the inner side of the adjusting frame 401, a rotating shaft of the sliding pipe bending wheel 403 is respectively slidably inserted in an adjusting groove B4011 and is clamped through a bolt, the pipe bending shaft 404 is rotatably inserted in the rotary drum 4021, the upper end and the lower end of the pipe bending shaft 404 are respectively fixedly connected with the adjusting frame 401 through an L-shaped connecting rod 4041, and the bottom of the pipe bending.

Wherein, four groups of universal ball 4012 are still inlayed to the rear side bottom of adjusting frame 401, and universal ball 4012's bottom pastes on arc backing plate 101, and it is more smooth when making adjusting frame 401 rotate on arc backing plate 101.

An i-shaped connecting frame 4031 is further connected between the sliding type elbow wheels 403, rotating shafts of the two groups of sliding type elbow wheels 403 further respectively rotate to penetrate through two sides of the i-shaped connecting frame 4031, the outer end of the i-shaped connecting frame 4031 is connected with a T-shaped adjusting rod 4032, the T-shaped adjusting rod 4032 is sleeved with a clamping spring 4033 and penetrates out of the adjusting frame 401, and therefore the sliding type elbow wheels 403 can clamp square tubes with the fixed type elbow wheels 402 under the action of the clamping spring 4033.

Wherein, the driving mechanism 5 comprises a manual operating shaft 501, a first driving shaft 502 and a second driving shaft 504, the manual operating shaft 501 is transversely and rotatably installed at the inner side of the processing platform 1, the outer end of the manual operating shaft 501 is further connected with an operating handle, the manual operating shaft 501 is in transmission connection with the first driving shaft 502 through a bevel gear set, a first driving gear 5021 is installed on the first driving shaft 502, the first driving shaft 502 is in transmission connection with the second driving shaft 504 through a chain, a second driving gear 5041 is installed on the second driving shaft 504, 1/4 circles of latch teeth are arranged on the first driving gear 5021, when the first driving shaft 502 rotates, the first driving gear 5021 is in meshing connection with a reverse driving gear 5031, the transmission ratio between the first driving gear 5021 and the reverse driving gear 5031 is 4:1, the reverse driving gear 5031 is fixedly installed on a transition shaft 503, the reverse driving gear 5031 is also in meshing connection with a bent pipe linkage gear 4042 on a group of bent pipe mechanisms, and the transmission ratio between the reverse driving gear 5031 and the elbow linkage gear 4042 is 1: 1, the second driving gear 5041 is also provided with 1/4 circles of latch teeth, when the second driving shaft 504 rotates, the second driving gear 5041 is engaged with the elbow linkage gear 4042 of the other set of elbow mechanism 4, and the transmission ratio between the second driving gear 5041 and the elbow linkage gear 4042 is 4:1, as shown in fig. 6 and 7, when the latch teeth on the first driving gear 5021 are just engaged with the reverse driving gear 5031, the latch teeth on the second driving gear 5041 are also just engaged with the elbow linkage gear 4042, as shown in fig. 1, the manual operating shaft 501 rotates clockwise, the first driving shaft 502 rotates clockwise through the bevel gear set, the reverse driving gear 5031 rotates counterclockwise through the engagement of the first driving gear 5021 and the reverse driving gear 5031, and the elbow linkage gear 4042 is driven to rotate clockwise through the engagement of the reverse driving gear 5031 and the second driving shaft 504 rotates clockwise through the chain, the engagement of the second driving gear 5041 with the other group of elbow linkage gears 4042 drives the other group of elbow linkage gears 4042 to rotate counterclockwise, so as to drive the two groups of adjusting frames 401 to rotate 90 ° around the rotary drum 4021.

The specific use mode and function of the embodiment are as follows:

according to the invention, firstly, two groups of L-shaped support frames A2 are driven by a length adjusting screw rod 3 of a square tube to synchronously slide and adjust in an adjusting groove A102, when the square tube is placed on the two groups of L-shaped support frames A, one end of the square tube is attached to a limiting plate, the other end of the square tube is level with the outer end of an L-shaped support frame A2, so that the center of the square tube is always positioned at the central position between two groups of elbow mechanisms 4, the lengths of the two ends of the square tube after being bent are always kept consistent, as shown in figure 1, a manual operation shaft 501 is rotated clockwise, a first driving shaft 502 of a bevel gear set is rotated clockwise, a reverse driving gear 5031 is rotated anticlockwise through the meshing of the first driving gear 5021 and a reverse driving gear 5031, the elbow linkage gear 4042 is driven to rotate clockwise through the meshing of the reverse driving gear 5031 and the elbow linkage gear 4042, meanwhile, a second driving shaft 504 is driven to rotate clockwise through the meshing of a chain The hour hand rotates to drive the two groups of adjusting frames 401 to rotate 90 degrees around the rotating drum 4021 respectively, bidirectional bending processing of the square tube is synchronously completed, the outer baffle 603 is pushed, the L-shaped support frame B601 at the front end of the discharging push rod 6 is driven to push the bent square tube to be separated from the fixed type bent tube wheel 402 and the sliding type bent tube wheel 403, and the discharging push rod 6 and the L-shaped support frame B601 can return to the original positions under the action of the reset spring 604 and the inner baffle 602 after the outer baffle 603 is loosened.

The invention is not described in detail, but is well known to those skilled in the art.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A two-way synchronous processingequipment that buckles of side pipe for mechanical equipment production equipment, its characterized in that: comprises a pipe bending mechanism (4), a driving mechanism (5) and a discharging push rod (6); the pipe bending mechanism (4) is provided with two groups and is respectively rotatably arranged at two sides of the processing platform (1), the bottom side of the pipe bending mechanism (4) is provided with an arc-shaped base plate (101), the arc-shaped base plate (101) is symmetrically arranged at two ends of the processing platform (1), the outer side of the arc-shaped base plate (101) is further respectively provided with an L-shaped support frame A (2), the L-shaped support frame A (2) is slidably arranged in the adjusting groove A (102) through a clamping plate (201) at the bottom of the L-shaped support frame A, the bottom of the clamping plate (201) is also connected with a threaded cylinder (2011), an adjusting screw rod (3) is respectively inserted and meshed in the threaded cylinder (2011), the driving mechanism (5) is arranged at the inner side of the processing platform (1) and is in transmission connection with a bent pipe linkage gear (4042) on the pipe bending mechanism (4), the front end of the discharging push rod (6) is of a U, the rear end of the discharging push rod (6) is connected with an inner baffle (602), then penetrates through the U-shaped frame (103) and is sleeved with a return spring (604), and the tail end of the discharging push rod (6) is also connected with an outer baffle (603).

2. The square tube bidirectional synchronous bending device for mechanical equipment production and assembly according to claim 1, wherein: the outer end of adjusting screw (3) still is connected with the operation hand wheel, adjusting screw (3) are gone up one end and are forward screw thread, the other end is reverse screw thread, be equipped with forward screw thread in screw thread section of thick bamboo (2011) of a set of L type support frame A (2) bottom side and with adjusting screw (3) go up forward thread engagement, be equipped with reverse screw thread in screw thread section of thick bamboo (2011) of another set of L type support frame A (2) bottom side and with adjusting screw (3) go up reverse thread engagement, and bolt fixedly connected with limiting plate (202) is passed through to the outer end of one of them set of L type support frame A (2), establish in one side of keeping away from the operation hand wheel limiting plate (202.

3. The square tube bidirectional synchronous bending device for mechanical equipment production and assembly according to claim 1, wherein: elbow mechanism (4) are including adjusting frame (401), fixed return bend wheel (402), slidingtype return bend wheel (403), return bend axle (404), fixed return bend wheel (402) are equipped with a set ofly and rotate through rotary drum (4021) and install the inboard front end in adjusting frame (401), slidingtype return bend wheel (403) are equipped with two sets ofly and slidable mounting in the inboard of adjusting frame (401), and the pivot of slidingtype return bend wheel (403) slides respectively and alternates in adjustment tank B (4011) and through the bolt screens, return bend axle (404) rotate and alternate in rotary drum (4021), and the upper and lower both ends of return bend axle (404) are respectively through L type connecting rod (4041) and adjusting frame (401) fixed connection, and the bottom of return bend axle (404) still fixedly connected with return bend linkage gear (4042).

4. The square tube bidirectional synchronous bending device for mechanical equipment production and assembly according to claim 3, wherein: four groups of universal balls (4012) are further inlaid at the bottom of the rear side of the adjusting frame (401), and the bottoms of the universal balls (4012) are attached to the arc-shaped base plate (101).

5. The square tube bidirectional synchronous bending device for mechanical equipment production and assembly according to claim 3, wherein: the pipe bending machine is characterized in that an I-shaped connecting frame (4031) is further connected between the sliding type pipe bending wheels (403), rotating shafts of the two groups of sliding type pipe bending wheels (403) further respectively rotate to penetrate through two sides of the I-shaped connecting frame (4031), the outer end of the I-shaped connecting frame (4031) is connected with a T-shaped adjusting rod (4032), and the T-shaped adjusting rod (4032) is sleeved with a clamping spring (4033) and penetrates out of the adjusting frame (401).

6. The square tube bidirectional synchronous bending device for mechanical equipment production and assembly according to claim 1, wherein: actuating mechanism (5) is including manual operation axle (501), first drive shaft (502), second drive shaft (504), the inboard at processing platform (1) is installed in manual operation axle (501) horizontal rotation, and the outer end of manual operation axle (501) still is connected with the operating handle, through bevel gear group transmission connection between manual operation axle (501) and first drive shaft (502), install first drive gear (5021) on first drive shaft (502), and be connected through chain drive between first drive shaft (502) and second drive shaft (504), install second drive gear (5041) on second drive shaft (504).

7. The square tube bidirectional synchronous bending device for mechanical equipment production and assembly according to claim 6, wherein: 1/4 circles of latch teeth are arranged on the first driving gear (5021), when the first driving shaft (502) rotates, the first driving gear (5021) is in meshed connection with the reverse driving gear (5031), the transmission ratio between the first driving gear (5021) and the reverse driving gear (5031) is 4:1, the reverse driving gear (5031) is fixedly installed on the transition shaft (503), the reverse driving gear (5031) is also in meshed connection with the elbow linkage gears (4042) on the group of elbow mechanisms (4), and the transmission ratio between the reverse driving gear (5031) and the elbow linkage gears (4042) is 1: 1.

8. the square tube bidirectional synchronous bending device for mechanical equipment production and assembly according to claim 6, wherein: 1/4 circles of clamping teeth are also arranged on the second driving gear (5041), when the second driving shaft (504) rotates, the second driving gear (5041) is meshed with a bent pipe linkage gear (4042) on the other group of bent pipe mechanisms (4), and the transmission ratio between the second driving gear (5041) and the bent pipe linkage gear (4042) is 4: 1.

9. The square tube bidirectional synchronous bending device for mechanical equipment production and assembly according to claim 7, wherein: when the latch on the first driving gear (5021) is just meshed with the reverse driving gear (5031), the latch on the second driving gear (5041) is also just meshed with the elbow linkage gear (4042).