CN218168207U

CN218168207U - Coarse straightening machine

Info

Publication number: CN218168207U
Application number: CN202222852417.3U
Authority: CN
Inventors: 张辰腾; 赵竑; 冯红蝶; 范飞
Original assignee: Shijiazhuang Teneng Electrical & Mechanical Equipment Co ltd
Current assignee: Shijiazhuang Teneng Electrical & Mechanical Equipment Co ltd
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2022-12-30
Anticipated expiration: 2032-10-27

Abstract

The utility model provides a rough straightening machine, which belongs to the technical field of steel pipe forming and comprises a frame, a swing straightening mechanism, a lifting mechanism and a compression roller opening and closing mechanism, wherein the swing straightening mechanism comprises a lifting slide plate, a worm fixedly arranged on the lifting slide plate, a worm wheel meshed with the worm and a straightening turntable rotatably connected with the lifting slide plate, the straightening turntable is connected with the worm wheel, the lifting slide plate is provided with a round hole matched with the straightening turntable, and the straightening turntable and the worm wheel are provided with through holes through which a primary forming square pipe passes; the lifting mechanism is arranged on the rack and comprises a lifting rod, and the lower end of the lifting rod is connected with the lifting sliding plate; the compression roller opening and closing mechanism comprises two sets of compression roller opening and closing assemblies, the two sets of compression roller opening and closing assemblies are distributed up and down by taking the center line of the through hole as a symmetry axis, and the two sets of compression roller opening and closing assemblies are connected to the straightening turntable. The utility model discloses the worm wheel drives the aligning carousel rotatory, and the compression roller mechanism synchronous revolution of opening and shutting that is connected with the aligning carousel drives square pipe and twists reverse, realizes the distortion aligning to square pipe, promotes the shaping precision of square pipe.

Description

Coarse straightening machine

Technical Field

The utility model belongs to the technical field of the steel pipe shaping, concretely relates to thick straightening machine.

Background

The production of the square steel tube is generally formed by directly cold rolling the steel strip, the square steel tube has four included angles, so that the square steel tube has great difference with the production of common round steel, a process window in the production of the sharp-corner square tube is small, one corner is a right angle, and the other three corners are fillets, so that the model adjustment and the control difficulty are high. Compared with the common steel pipe, the falling mass production of the sharp-angled square pipe has higher technical barriers.

The rolling technology of present closed angle square pipe is generally unilateral, namely in the roll bending process, the right-angle side of closed angle square pipe is firstly rolled, the opposite side of the right-angle side is rolled to a certain angle by the right-angle side, the side with two fillets is rolled to a certain angle by the side with two fillets, and a group of oblique insert rollers is adopted to complete the rest rolling process.

After the steel belt is initially formed into the square pipe, a plurality of rough straightening processes and fine straightening processes are needed to finish the final forming of the square pipe. The prior rough straightening mechanism has the following defects: because the unilateral starting angle of square pipe, there is distortion in the square pipe after the preliminary shaping, and current straightening mechanism can't twist the straightening to square pipe, causes the poor problem of fashioned square pipe precision.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a thick straightening machine aims at solving the problem of square pipe production distortion.

In order to achieve the above object, the utility model adopts the following technical scheme: providing a rough straightener comprising:

a frame;

the swing straightening mechanism comprises a lifting sliding plate, a worm fixedly arranged on the lifting sliding plate, a worm wheel meshed with the worm and a straightening rotary table rotationally connected with the lifting sliding plate, wherein the straightening rotary table is connected with the worm wheel, a round hole matched with the straightening rotary table is formed in the lifting sliding plate, and a through hole through which a primary forming square pipe passes is formed in the straightening rotary table and the worm wheel;

the lifting mechanism is arranged on the rack and comprises a lifting rod, and the lower end of the lifting rod is connected with the lifting sliding plate; and

the compression roller opening and closing mechanism comprises two sets of compression roller opening and closing assemblies, the compression roller opening and closing assemblies are distributed up and down by taking the center line of the through hole as a symmetry axis, and the compression roller opening and closing assemblies are connected to the straightening turntable.

In a possible implementation manner, the straightening rotary table is provided with a rotary table body matched with the round hole of the lifting sliding plate and a blocking disc abutted against the end face of the lifting sliding plate, and the compression roller opening and closing assembly is fixed on the end face of the blocking disc; the worm wheel is axially connected with the turntable body.

In a possible implementation manner, an annular oil groove is formed in the outer circumferential surface of the turntable body, and an oil filling hole communicated with the annular oil groove is further formed in the turntable body.

In a possible implementation manner, the oil filling hole is arranged along the radial direction of the turntable body, and an oil plug is arranged on the oil filling hole.

In a possible implementation manner, the inner ring of the worm wheel is provided with a hub, and the shaft end of the turntable body abuts against the axial end face of the hub and is tightly connected with the hub through a bolt.

In a possible implementation manner, a lifting slideway is arranged on the rack, and the lifting sliding plate lifts along the lifting slideway.

In a possible implementation mode, the upper end of the lifting sliding plate is provided with a connecting block, a T-shaped groove is formed in the connecting block, and the lower end of the lifting rod is provided with a T-shaped connector matched with the T-shaped groove.

In a possible implementation manner, the lifting mechanism further comprises a lifting seat arranged on the rack and a lifting threaded sleeve rotatably connected with the lifting seat, the lifting rod is a lifting screw rod, and the lifting screw rod is in threaded connection with the lifting threaded sleeve.

In a possible implementation manner, a connecting plate is further arranged between the compression roller opening and closing assembly and the straightening rotary table, a straightening hole coaxial with the through hole is formed in the connecting plate, and the aperture of the straightening hole is smaller than that of the through hole.

In a possible implementation mode, the compression roller opening and closing assembly comprises a driving motor, an opening and closing screw rod seat, an opening and closing screw rod, a roller box, an opening and closing screw sleeve and a compression roller, the opening and closing screw rod seat is fixed on the end face of the straightening turntable, the opening and closing screw sleeve is fixed on the roller box, the upper end of the opening and closing screw rod is connected with the driving motor, the lower end of the opening and closing screw rod is in threaded connection with the opening and closing screw sleeve, and the compression roller is connected to the roller box through the rotation of a compression roller shaft.

The utility model provides a thick straightening machine compares with prior art, and beneficial effect lies in: the preliminary shaping side pipe passes the through-hole of aligning carousel to through the centre gripping of compression roller mechanism that opens and shuts, then, the worm drives worm wheel forward or reverse rotation, and the worm wheel drives aligning carousel rotation, and the compression roller mechanism synchronous revolution that opens and shuts that is connected with aligning carousel drives the side pipe and twists reverse, realizes the distortion aligning to the side pipe, promotes the shaping precision of side pipe, provides the guarantee for the precision shaping of follow-up side pipe and final shaping.

Drawings

FIG. 1 is a schematic structural view of a rough straightening machine provided by an embodiment of the present invention;

FIG. 2 is a schematic left side view of the rough straightener provided in the embodiment of FIG. 1;

FIG. 3 is a schematic diagram showing the construction of the rough straightener provided in the embodiment of FIG. 1 in a right view;

FIG. 4 is a schematic view of the structure of FIG. 2 with the connecting plate removed;

FIG. 5 is a schematic structural diagram of the rack provided in the embodiment of FIG. 2;

FIG. 6 is a schematic structural view of the lifting slider provided in the embodiment of FIG. 2;

FIG. 7 is a left side view of the lifting slider shown in FIG. 6;

FIG. 8 is a schematic structural view of a roller box provided in the embodiment of FIG. 2;

FIG. 9 is a schematic structural view of a straightening rotary table provided in the embodiment of FIG. 1;

FIG. 10 is a left side view schematically showing the construction of the straightening rotary table provided in the embodiment of FIG. 9;

description of reference numerals:

1. a frame; 2. a worm gear; 3. a straightening rotary table; 4. a lifting slide plate; 5. a lifting screw sleeve; 6. a dust cover; 7. a nut; 8. a lifting screw rod; 9. a lifting slideway; 10. a worm support; 11. a worm copper sleeve; 12. a worm; 13. a screw rod seat is opened and closed; 14. opening and closing the screw rod; 15. opening and closing the threaded sleeve; 16. a roller box; 17. pressing a plate; 18. a compression roller shaft; 19. a compression roller; 20. a drive motor; 21. a connecting plate; 22. connecting blocks; 23. an annular oil groove; 24. an oil filler hole; 25. and (4) an oil plug.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1 to 4 together, the rough straightening machine of the present invention will now be described. The rough straightening machine comprises a frame 1, a swing straightening mechanism, a lifting mechanism and a compression roller 19 opening and closing mechanism, wherein the swing straightening mechanism comprises a lifting sliding plate 4, a worm 12 fixedly arranged on the lifting sliding plate 4, a worm wheel 2 meshed with the worm 12 and a straightening rotary table 3 rotatably connected with the lifting sliding plate 4, the straightening rotary table 3 is connected with the worm wheel 2, a round hole matched with the straightening rotary table 3 is formed in the lifting sliding plate 4, and a through hole through which a primary-forming square pipe passes is formed in the straightening rotary table 3 and the worm wheel 2; the lifting mechanism is arranged on the frame 1 and comprises a lifting rod, and the lower end of the lifting rod is connected with the lifting sliding plate 4; the compression roller 19 opening and closing mechanism comprises two sets of compression roller opening and closing assemblies, the two sets of compression roller opening and closing assemblies are distributed up and down by taking the center line of the through hole as a symmetry axis, and the two sets of compression roller opening and closing assemblies are connected to the straightening rotary table 3.

The utility model provides a thick straightening machine compares with prior art, and beneficial effect lies in:

first, the preliminary shaping side pipe passes the through-hole of straightening carousel 3 to through the centre gripping of compression roller 19 mechanism that opens and shuts, then, worm 12 drives worm wheel 2 forward or reverse rotation, and worm wheel 2 drives straightening carousel 3 rotatory, and the compression roller 19 mechanism synchronous revolution that opens and shuts of being connected with straightening carousel 3 drives the side pipe and twists reverse, realizes the distortion straightening to the side pipe, promotes the shaping precision of side pipe.

Secondly, the opening and closing mechanism of the compression roller 19 adapts to the straightening of square pipes with different sizes through opening and closing mediation, and meanwhile, the opening and closing mechanism of the compression roller 19 can straighten and level the end face of the square pipe.

Thirdly, the lifting mechanism drives the swing straightening mechanism and the press roll 19 opening and closing mechanism to lift simultaneously so as to adapt to the straightening of square pipes with different sizes and improve the universality of the straightening machine.

Fourthly, the matching mode of the worm wheel 2 and the worm 12 has strong self-locking property and large torsion, and can improve the strength of the twisting and straightening of the opposite pipe.

The swing straightening mechanism drives the compression roller 19 opening and closing mechanism to swing left and right, and the left and right swinging angle is smaller than 20 degrees.

Wherein, be equipped with worm support 10 on the lift slide 4, worm 12 is equipped with worm copper sheathing 11 with the position of worm support 10 complex, reduces the wearing and tearing of worm 12.

In some embodiments, as shown in fig. 1 and 9, the straightening rotary table 3 has a rotary table body matched with the circular hole of the lifting sliding plate 4 and a baffle disc abutted against the end face of the lifting sliding plate 4, and the pressing roller opening and closing assembly is fixed on the end face of the baffle disc; the worm wheel 2 is axially connected with the turntable body. The baffle disc of the straightening rotary disc 3 has the function of axial limiting.

In some embodiments, as shown in fig. 1 and 9, an annular oil groove 23 is formed on the outer circumferential surface of the turntable body, and the turntable body is further provided with an oil filling hole 24 communicating with the annular oil groove 23. Lubricating oil is injected between the circular holes of the turntable body and the lifting sliding plate 4, so that the sliding friction between the turntable body and the lifting sliding plate 4 is reduced, an oil film is formed between the turntable body and the lifting sliding plate 4, and the rotating sensitivity of the straightening turntable 3 is improved.

In some embodiments, as shown in FIG. 1, the oil hole 24 is disposed along a radial direction of the turntable body, and the oil plug is disposed on the oil hole 24. 25

In some embodiments, as shown in fig. 1, the inner ring of the worm wheel 2 has a hub, and the shaft end of the turntable body abuts against the axial end face of the hub and is fastened and connected by a bolt. The hub of the worm wheel 2 plays a role in axial limiting on the straightening rotary table 3.

In some embodiments, as shown in fig. 2 to 5, the frame 1 is provided with a lifting slide 9, and the lifting slide plate 4 is lifted along the lifting slide 9.

In some embodiments, as shown in fig. 1, 6 and 7, the upper end of the lifting sliding plate 4 is provided with a connecting block 22, the connecting block 22 is provided with a T-shaped groove, and the lower end of the lifting rod is provided with a T-shaped connector matched with the T-shaped groove. Wherein, connecting

block

22 and 4 welding of lift slide or bolted connection, through T-slot and T shape connector complex connected mode, the lower extreme of lifter from the one end in T-slot insert can, the assembly is simple and convenient.

In some embodiments, as shown in fig. 1 to 4, the lifting mechanism further includes a lifting base disposed on the frame 1 and a lifting screw 5 rotatably connected to the lifting base, the lifting rod is a lifting screw 8, and the lifting screw 8 is screwed with the lifting screw 5. The lifting screw rod 8 can be driven to lift by rotating the lifting screw sleeve 5, and the lifting slide plate 4, the straightening rotary table 3 and the compression roller 19 opening and closing mechanism are driven to lift synchronously. The lifting seat is welded or bolted on the frame 1, and a bearing is arranged between the lifting seat and the lifting screw sleeve 5, so that the rotation sensitivity of the lifting screw sleeve 5 is improved; and a locking nut is further arranged on the lifting screw sleeve 5 to axially compress the bearing.

The lifting mechanism further comprises a dust cover 6, the lifting threaded sleeve 5 penetrates through the dust cover 6, and the dust cover 6 is protected outside the locking nut and the bearing; the upper end of the lifting screw rod 8 is also provided with a nut 7, the nut 7 is in threaded connection with the upper end of the lifting screw rod 8, a gap between the lifting screw rod 8 and the lifting screw sleeve 5 is protected, and dust is prevented from falling into the gap to influence the rotating effect.

The lifting mechanism can also be linearly driven by an electric push rod, an air cylinder, a hydraulic cylinder and the like.

In some embodiments, as shown in fig. 1 to 4 and fig. 8 to 10, a connecting plate 21 is further disposed between the roller opening and closing assembly and the straightening rotary table 3, a straightening hole coaxial with the through hole is disposed on the connecting plate 21, and the diameter of the straightening hole is smaller than that of the through hole.

In some embodiments, as shown in fig. 1 to 4, the pressing roller opening and closing assembly includes a driving motor 20, an opening and closing screw rod seat 13, an opening and closing screw rod 14, a roller box 16, an opening and closing screw sleeve 15 and a pressing roller 19, the opening and closing screw rod seat 13 is fixed on the end surface of the straightening turntable 3, the opening and closing screw sleeve 15 is fixed on the roller box 16, the upper end of the opening and closing screw rod 14 is connected with the driving motor 20, the lower end of the opening and closing screw rod 14 is in threaded connection with the opening and closing screw sleeve 15, and the pressing roller 19 is rotatably connected on the roller box 16 through a pressing roller shaft 18. Wherein, the two sides of the roller box 16 are provided with press plates 17 which play a role of limiting the axial direction of a press roller shaft 18; the roller box 16 axially limits the roller shaft 18.

The driving motor 20 drives the respective opening and closing screw rods 14 to rotate, the opening and closing screw sleeves 15 are driven to ascend and descend by the rotation of the opening and closing screw rods 14, the roller boxes 16 and the pressing rollers 19 are driven to ascend and descend by the opening and closing screw sleeves 15, the two pressing rollers 19 which are opposite up and down move oppositely, the opening and closing adjustment of the pressing rollers 19 is achieved, and the square tubes with different sizes are pressed tightly.

Wherein, the part that the screw rod 14 that opens and shuts cooperates with the screw rod seat 13 of opening and shutting also is equipped with the bearing, and is equipped with the oil filler point 24 with bearing intercommunication on the screw rod seat 13 that opens and shuts, is equipped with the oil plug on the oil filler point 24. 25 the oil holes 24 are in this case located differently from the oil holes 24 in the straightening swivel 3, but they have the same function, so that the oil holes 24 in the two positions are not marked differently.

In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A rough straightener, comprising:

a frame (1);

the swing straightening mechanism comprises a lifting sliding plate (4), a worm (12) fixedly arranged on the lifting sliding plate (4), a worm wheel (2) meshed with the worm (12) and a straightening rotary table (3) rotatably connected with the lifting sliding plate (4), wherein the straightening rotary table (3) is connected with the worm wheel (2), a round hole matched with the straightening rotary table (3) is formed in the lifting sliding plate (4), and a through hole through which a primary-formed square pipe passes is formed in the straightening rotary table (3) and the worm wheel (2);

the lifting mechanism is arranged on the rack (1) and comprises a lifting rod, and the lower end of the lifting rod is connected with the lifting sliding plate (4); and

and the compression roller (19) opening and closing mechanism comprises two sets of compression roller opening and closing components, the two sets of compression roller opening and closing components are distributed up and down by taking the central line of the through hole as a symmetry axis, and the two sets of compression roller opening and closing components are connected to the straightening turntable (3).

2. The rough straightening machine according to claim 1, wherein the straightening rotary table (3) is provided with a rotary table body matched with the round hole of the lifting sliding plate (4) and a baffle disc abutted against the end face of the lifting sliding plate (4), and the press roll opening and closing assembly is fixed on the end face of the baffle disc; the worm wheel (2) is axially connected with the turntable body.

3. The rough straightening machine according to claim 2, characterized in that an annular oil groove (23) is formed in the outer circumferential surface of the rotating disk body, and the rotating disk body is further provided with an oil filling hole (24) communicated with the annular oil groove (23).

4. Coarse straightening machine according to claim 3, characterized in that the oil filler hole (24) is arranged in the radial direction of the body of the turntable, and an oil plug is arranged on the oil filler hole (24).

5. The rough straightener according to claim 2, characterized in that the inner ring of the worm wheel (2) has a hub, and the shaft end of the rotary disk body abuts against the axial end face of the hub and is fastened and connected by a bolt.

6. Rough straightener according to claim 1, characterized in that a lifting slide (9) is provided on the frame (1), along which lifting slide (9) the lifting slide (4) is lifted.

7. The rough straightener of claim 1, characterized in that the upper end of the lifting slide plate (4) is provided with a connecting block (22), the connecting block (22) is provided with a T-shaped groove, and the lower end of the lifting rod is provided with a T-shaped connector matched with the T-shaped groove.

8. The rough straightening machine according to claim 1, characterized in that the lifting mechanism further comprises a lifting seat arranged on the machine frame (1) and a lifting screw sleeve (5) rotatably connected with the lifting seat, the lifting rod is a lifting screw rod (8), and the lifting screw rod (8) is in threaded connection with the lifting screw sleeve (5).

9. The rough straightening machine according to claim 1, characterized in that a connecting plate (21) is further arranged between the press roll opening and closing assembly and the straightening rotary table (3), a straightening hole coaxial with the through hole is formed in the connecting plate (21), and the diameter of the straightening hole is smaller than that of the through hole.

10. The rough straightening machine according to claim 1, characterized in that the compression roller opening and closing assembly comprises a driving motor (20), an opening and closing screw rod seat (13), an opening and closing screw rod (14), a roller box (16), an opening and closing screw sleeve (15) and a compression roller (19), the opening and closing screw rod seat (13) is fixed on the end surface of the straightening turntable (3), the opening and closing screw sleeve (15) is fixed on the roller box (16), the upper end of the opening and closing screw rod (14) is connected with the driving motor (20), the lower end of the opening and closing screw rod (14) is in threaded connection with the opening and closing screw sleeve (15), and the compression roller (19) is rotatably connected on the roller box (16) through a compression roller shaft (18).