CN116371972A

CN116371972A - Pressure straightening machine

Info

Publication number: CN116371972A
Application number: CN202310646651.7A
Authority: CN
Inventors: 常瑜; 左雁冰; 陈�峰; 刘磊; 丛阳阳
Original assignee: China National Heavy Machinery Research Institute Co Ltd
Current assignee: China National Heavy Machinery Research Institute Co Ltd
Priority date: 2023-06-02
Filing date: 2023-06-02
Publication date: 2023-07-04

Abstract

The application discloses a pressure straightener, which comprises a machine body; the first anvil block is arranged on the machine body and is in sliding connection with the machine body; a second anvil block positioned below the first anvil block and at least two of the second anvil blocks are slidably connected with the machine body; a first driving assembly arranged on the machine body and capable of driving the first anvil to move towards and/or away from the second anvil; the second driving assembly is arranged on the machine body and can drive the second anvil to slide on the machine body. The utility model provides a can accomplish the straightening of different work pieces through a first anvil that is used for pushing down and at least two second anvils that are used for the pressure-bearing, can adapt to the metal material's of different sizes and shape straightening demand in a flexible way, improved the commonality of equipment, compared with the hierarchical anvil of multiunit that adopts among the prior art, this application has reduced the subassembly quantity, occupation space is less relatively, can install and transport more conveniently, is applicable to multiple occasion.

Description

Pressure straightening machine

Technical Field

The application relates to the technical field of metal processing, in particular to a pressure straightener.

Background

A press leveler is an apparatus for processing a metal material, and is generally used for press working and leveling a steel plate, a pipe, or the like. The method can realize that the original geometric shape of the bent, twisted or irregularly-shaped metal material is restored by applying pressure, thereby achieving the straightening effect. The pressure straightener mainly utilizes a movable pressure head and two fixed fulcrums which are driven by a press machine, so as to coarsely straighten steel plates, pipes or other rolled materials.

The pressure straightener is used as a straightening mode, is convenient to operate, is multipurpose in occasions of straightening large-specification and special profiles, is used as a roller straightener under the condition that straightening cannot be achieved or poor straightening occurs, and is generally provided with a plurality of groups of grading anvils, and the anvils with proper intervals are selected for straightening according to actual needs.

However, the use of multiple sets of staged anvils results in a bulky, heavy, and costly apparatus.

Disclosure of Invention

In view of the above, it is necessary to provide a pressure straightener for solving the above-mentioned problems.

The pressure straightener includes:

a body;

the first anvil block is arranged on the machine body and is connected with the machine body in a sliding way;

a second anvil block positioned below the first anvil block and at least two of the second anvil blocks are slidably connected with the machine body;

a first driving assembly arranged on the machine body and capable of driving the first anvil to move towards the second anvil and/or driving the first anvil to move away from the second anvil;

the second driving assembly is arranged on the machine body and can drive the second anvil to slide on the machine body.

In some embodiments, the body comprises:

a frame;

the fixing frame is arranged on the frame, a sliding rail is arranged on the fixing frame along the vertical direction, and the first anvil block is in sliding connection with the fixing frame through the sliding rail;

the cross beam is horizontally arranged on the frame, a sliding hole is formed in the second anvil block, and the cross beam is arranged in the sliding hole in a sliding mode.

In some embodiments, a first ram is provided on the first anvil, the first ram being removably connected to the first anvil.

In some embodiments, a dovetail tenon is arranged at the bottom of the first anvil, a dovetail mortice capable of clamping the dovetail tenon is arranged on the first pressing head, and the first anvil is in joggle joint with the first pressing head.

In some embodiments, a second ram is provided on the second anvil, the second ram being removably connected to the second anvil.

In some embodiments, the first drive assembly comprises:

the hydraulic cylinder is positioned above the first anvil block, the cylinder body of the hydraulic cylinder is fixedly connected with the machine body, and the telescopic direction of the piston rod of the hydraulic cylinder is arranged along the vertical direction;

the connector is positioned between the hydraulic cylinder and the first anvil block, and two sides of the connector are detachably connected with a piston rod of the hydraulic cylinder and the first anvil block respectively.

In some embodiments, the second drive assembly comprises:

the worm is arranged on the machine body and is rotationally connected with the machine body, and the arrangement direction of the worm is the same as the arrangement direction of the cross beam.

The adjusting nuts are sleeved on the worm and are in threaded connection with the worm, and the adjusting nuts are in one-to-one correspondence with the second anvils and are fixedly connected with the second anvils;

the bidirectional motor is arranged on the machine body;

the first chain wheel and the second chain wheel are respectively and fixedly connected with the output shaft of the bidirectional motor and the worm in a coaxial way;

and the chain is sleeved on the first chain wheel and the second chain wheel and meshed with the first chain wheel and the second chain wheel.

In some embodiments, the two adjusting nuts are arranged, the second anvil is provided with two adjusting nuts and is respectively in one-to-one correspondence with and fixedly connected with the two adjusting nuts, the two adjusting nuts are respectively positioned on two sides of the second sprocket, and the screw thread directions of the two adjusting nuts are opposite.

In some embodiments, the pressure straightener further comprises:

the first displacement sensor is arranged on the machine body and can emit an electric signal when the first anvil block moves to a preset position;

a first limit switch; the hydraulic cylinder is electrically connected with the first displacement sensor and the hydraulic cylinder, and can receive the electric signal sent by the first displacement sensor and control the hydraulic cylinder to stop working.

In some embodiments, the pressure straightener further comprises:

the second displacement sensor is arranged on the machine body and can emit an electric signal when the second anvil block moves to a preset position;

a second limit switch; the bidirectional motor is electrically connected with the second displacement sensor and the bidirectional motor, and can receive the electric signal sent by the second displacement sensor and control the bidirectional motor to stop working.

Compared with the prior art, the beneficial effects of this application are:

firstly, the second anvil block in the application can be moved, and the position of the second anvil block can be changed according to different processed workpieces, namely, the application can finish the straightening of different workpieces through a first anvil block for pressing down and at least two second anvil blocks for bearing pressure, can flexibly adapt to the straightening requirements of metal materials with different sizes and shapes, improves the universality of equipment, reduces the number of components compared with the prior art adopting a plurality of groups of grading anvil blocks, occupies relatively small space, can be more conveniently installed and carried, and is suitable for various occasions; secondly, the hydraulic cylinder and the bidirectional motor are adopted to drive and combine, so that high-precision straightening operation can be realized, and the straightening speed is adjustable; controlling the position of the second anvil by adjusting the nut; and moreover, the control components such as the displacement sensor and the limit switch are adopted, so that the problems of overrun, jamming and the like in the straightening process can be effectively avoided, and the operation safety and stability are ensured.

Drawings

Fig. 1 is a schematic view in partial cross-section showing an overall structure in an exemplary embodiment of the present application.

In the figure: 11. a frame; 12. a fixing frame; 13. a cross beam; 21. a first anvil; 22. a first ram; 31. a second anvil; 32. a second ram; 41. a hydraulic cylinder; 42. a connector; 51. a worm; 511. a bearing seat; 52. an adjusting nut; 53. a bi-directional motor; 54. a first sprocket; 55. a second sprocket; 56. a chain; 61. a second displacement sensor.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end", etc., are based on directions or positional relationships shown in the drawings, are merely for convenience of description of the present application and simplification of the description, and do not indicate or imply that the apparatus or element referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," 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 application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "provided," "connected," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

As described in the background art, the pressure straightener is used as a straightening mode, is convenient to operate, is used for straightening large-specification and special profile occasions, is used as a roller straightener under the condition that straightening cannot be achieved or poor straightening occurs, and is generally used for straightening by adopting a plurality of groups of grading anvils, and the anvils with proper intervals are selected for straightening according to actual needs. However, the use of multiple sets of staged anvils results in a bulky, heavy, and costly apparatus.

To improve the above problems, the present application proposes a pressure straightener, referring to fig. 1, which mainly includes: the machine body, the first anvil 21, the second anvil 31, the first driving assembly, the second driving assembly, the first displacement sensor, the second displacement sensor 61, the first limit switch and the second limit switch. Wherein the machine body is used for bearing other parts, and the first anvil 21 and the second anvil 31 are used for straightening the workpiece; the first and second drive assemblies are for driving the first and

second anvils

21 and 31, respectively, to move; the first and second displacement sensors 61 are for detecting positions of the first and

second anvils

21 and 31, respectively, and emitting an electric signal when the first and

second anvils

21 and 31 are moved to the preset positions; the first limit switch and the second limit switch are used for receiving the electric signals and controlling the first driving assembly and the second driving assembly to stop working so as to prevent the problems of overrun, jamming and the like in the straightening process and ensure the operation safety and stability.

Specifically, in the exemplary embodiment, the machine body includes a frame 11, a mount 12, and a cross beam 13. Wherein, the frame 11 is used as a main body of the application and plays a role of supporting other parts; the fixing frame 12 is formed into a block and is fixed on the frame 11 through bolts, further, a sliding rail is arranged on the fixing frame 12 along the vertical direction, and the first anvil block 21 is in sliding connection with the fixing frame 12 through the sliding rail; the cross beam 13 is horizontally arranged on the frame 11, two ends of the cross beam 13 are fixedly connected with the frame 11, a sliding hole is formed in the second anvil block 31, and the cross beam 13 is arranged in the sliding hole in a sliding mode along the horizontal direction. The body is capable of carrying the first anvil 21 and the second anvil 31 and provides a movable environment for the first anvil 21 and the second anvil 31.

Specifically, in the exemplary embodiment, referring to fig. 1, a first anvil 21 is disposed on the mount 12 and slidably coupled to the mount 12, and a first ram 22 is mounted on the first anvil 21. The first drive assembly is configured to drive the first anvil 21 toward and/or away from the second anvil 31.

Further, in the exemplary embodiment, the first ram 22 is provided at a lower end portion of the first anvil 21, and the first anvil 21 is detachably connected to the first ram 22.

Further, a dovetail tenon is arranged at the bottom of the first anvil block 21, a dovetail mortice capable of clamping the dovetail tenon is arranged on the first pressing head 22, and the first anvil block 21 is in joggle fit with the first pressing head 22.

Further, in other embodiments, the first anvil 21 and the first ram 22 are detachably connected by a number of bolts.

Specifically, in the exemplary embodiment, two second anvils 31 are provided and are positioned below the first anvil 21, and both second anvils 31 are slidably coupled to the body via the cross beam 13. The second anvil 31 can be moved on the machine body as required and can withstand different sizes of metallic materials. A second removable ram 32 is also mounted on the second anvil 31.

Further, in the exemplary embodiment, a second ram 32 is disposed at an upper end of second anvil 31.

Further, a dovetail tenon is arranged at the top of the second anvil block 31, a dovetail mortice capable of clamping the dovetail tenon is arranged on the second pressing head 32, and the second anvil block 31 is in joggle fit with the second pressing head 32.

Further, in other embodiments, the second anvil 31 and the second ram 32 are detachably connected by a number of bolts.

Specifically, in the exemplary embodiment, the first drive assembly is disposed on the machine body and is composed of a hydraulic cylinder 41 and a connector 42. The hydraulic cylinder 41 is positioned above the first anvil block 21, the cylinder body of the hydraulic cylinder 41 is fixedly connected with the machine body through bolts, and the expansion and contraction direction of the piston rod of the hydraulic cylinder 41 is arranged along the vertical direction; the connector 42 is located between the hydraulic cylinder 41 and the first anvil 21, and both sides of the connector 42 are detachably connected with the piston rod of the hydraulic cylinder 41 and the first anvil 21, respectively.

Further, both sides of the connection head 42 are fixedly connected with the piston rod of the hydraulic cylinder 41 and the first anvil 21 by bolts, respectively.

Specifically, in the exemplary embodiment, a second drive assembly is disposed on the machine body and is comprised of a worm 51, an adjustment nut 52, a bi-directional motor 53, a first sprocket 54, a second sprocket 55, and a chain 56. Two bearing seats 511 are fixed on the frame 11 and are respectively sleeved at two ends of the worm 51, the worm 51 is arranged on the machine body and is rotationally connected with the machine body through the two bearing seats 511, and the arrangement direction of the worm 51 is the same as the arrangement direction of the cross beam 13; the adjusting nuts 52 are sleeved on the worm 51 and are in threaded connection with the worm 51, further, the two adjusting nuts 52 are arranged, the two second anvils 31 are respectively in one-to-one correspondence with the two adjusting nuts 52 and are fixedly connected, the two adjusting nuts 52 are respectively positioned at two sides of the middle point of the worm 51, and the thread directions of the two adjusting nuts 52 are opposite, so that when the worm 51 rotates, the two adjusting nuts 52 can be driven to move oppositely or move oppositely, and then the two second anvils 31 are driven to move oppositely or move oppositely, and the distance between the two second anvils 31 can be adjusted according to requirements; the bidirectional motor 53 is arranged on the machine body, and the first chain wheel 54 and the second chain wheel 55 are respectively and fixedly connected with the output shaft of the bidirectional motor 53 and the worm 51 in a coaxial way; the chain 56 is sleeved on the first sprocket 54 and the second sprocket 55 and meshed with the first sprocket 54 and the second sprocket 55. I.e. the position of the second anvil 31 can be adjusted by means of the bi-directional motor 53.

In other embodiments, the second drive assembly may include a rail, a slider, a worm 51, and a motor, among other components. Wherein the guide rail is fixed with the machine body, and the sliding block is fixedly connected with one of the second anvils 31 and can move up and down along the guide rail; the worm 51 is coaxially fixed with the motor output shaft, is connected with the slide block through an adjusting nut 52, and realizes the adjustment of the position of the slide block by rotating the worm 51. This form of second drive assembly also enables the position of the second anvil 31 to be changed, thus achieving an accurate straightening operation of the metallic material.

Specifically, in the exemplary embodiment, a first displacement sensor is disposed on the frame 11 and is capable of sending out an electrical signal when the first anvil 21 moves to a preset position, and a first limit switch is electrically connected to the first displacement sensor and the hydraulic cylinder 41 and is capable of receiving the electrical signal sent out by the first displacement sensor and controlling the hydraulic cylinder 41 to stop working; a second displacement sensor 61 is provided on the frame 11, capable of emitting an electrical signal when the second anvil 31 is moved to a preset position; the second limit switch is electrically connected to the second displacement sensor 61 and the bidirectional motor 53, and is capable of receiving an electrical signal sent by the second displacement sensor 61 and controlling the bidirectional motor 53 to stop working.

In summary, first, the second anvil 31 in the present application is movable, and the position of the second anvil 31 can be changed according to the difference of workpieces to be processed, that is, the present application can complete the straightening of different workpieces through one first anvil 21 for pressing down and at least two second anvils 31 for bearing pressure, can flexibly adapt to the straightening requirements of metal materials with different sizes and shapes, improves the universality of the equipment, reduces the number of components, occupies relatively smaller space, can be more conveniently installed and carried, and is suitable for various occasions compared with the prior art adopting multiple groups of graded anvils; secondly, the hydraulic cylinder 41 and the bidirectional motor 53 are adopted for driving and combining, so that high-precision straightening operation can be realized, and the straightening speed is adjustable; the position of the second anvil 31 is controlled by adjusting the nut 52; and moreover, the control components such as the displacement sensor and the limit switch are adopted, so that the problems of overrun, jamming and the like in the straightening process can be effectively avoided, and the operation safety and stability are ensured.

Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present application, and is not intended to limit the present application, but although the present application has been described in detail with reference to the foregoing embodiment, it will be apparent to those skilled in the art that modifications may be made to the technical solutions described in the foregoing embodiments, or that equivalents may be substituted for part of the technical features thereof. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A pressure straightener, comprising:

a body;

a first drive assembly disposed on the body and configured to drive the first anvil toward the second anvil and/or drive the first anvil away from the second anvil;

2. The pressure straightener of claim 1, characterized in that the machine body comprises:

a frame;

3. The pressure straightener of claim 1, characterized in that the first anvil is provided with a first ram, which is detachably connected to the first anvil.

4. The pressure straightener of claim 3, wherein a dovetail is provided at the bottom of the first anvil, a dovetail hole capable of clamping the dovetail is provided on the first ram, and the first anvil and the first ram are in joggle fit.

5. The pressure straightener of claim 1, characterized in that a second ram is provided on the second anvil, the second ram being detachably connected to the second anvil.

6. The pressure straightener of claim 1, characterized in that the first drive assembly comprises:

7. The pressure straightener of claim 2, characterized in that the second drive assembly comprises:

the worm is arranged on the machine body and is rotationally connected with the machine body, and the arrangement direction of the worm is the same as the arrangement direction of the cross beam;

the bidirectional motor is arranged on the machine body;

8. The pressure straightener of claim 7, wherein two adjusting nuts are provided, the second anvil is provided with two adjusting nuts and is fixedly connected with the two adjusting nuts in a one-to-one correspondence, the two adjusting nuts are respectively located on two sides of the second sprocket, and the thread directions of the two adjusting nuts are opposite.

9. The pressure straightener of claim 6, further comprising:

10. The pressure straightener of claim 7, further comprising: