Flame cutting anti-deformation device for slender workpiece groove

By designing a anti -deformation device that includes a positioning platform, the positioning device of the X direction, the position positioning device of the X direction, the Y direction positioning device, and the Y direction of the Y direction, the problem of deformation of the slender workpiece in the cutting process is solved. Higher processing quality and production efficiency.

CN222403868UActive Publication Date: 2025-01-28XIAN COAL MINING MACHINERY
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Patent Information

Application Number
CN202420467316.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-03-11
Publication Date
2025-01-28
Estimated Expiration
2034-03-11

AI Technical Summary

Technical Problem

During the bevel flame cutting process, the elongated workpiece is deformed due to heat, resulting in a decrease in processing quality. An anti-deformation device that can reduce the amount of deformation during the workpiece cutting process is needed.

Method used

A slender workpiece is designed with a sloping of the flame cutting anti -deformation device, including the positioning platform, the X direction positioning device, the Y direction positioning device, and the anti -deformation locking device. Through the combination of these devices Cut, control the workpiece, bending and bending deformation.

Benefits of technology

This device can effectively reduce the deformation during the cutting process of the workpiece, improve the quality of the slopes, reduce the number of repair times, and improve the production efficiency.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a slender workpiece groove flame cutting anti-deformation device which comprises a positioning platform, an X-direction positioning device, a Y-direction positioning device and an anti-deformation locking device are arranged on the positioning platform, the X-direction positioning device comprises a fixed positioning plate and a movable positioning block which are arranged at one end of the positioning platform, and the Y-direction positioning device comprises a Y-direction positioning device and an anti-deformation locking device which are arranged at the other end of the positioning platform. The Y-direction positioning device comprises two positioning locking pressing plates, a plurality of adjustable locking pressing plates are arranged between the two positioning locking pressing plates, the positioning locking pressing plates and the adjustable locking pressing plates are connected with the positioning platform through locking screws, and the anti-deformation locking device comprises a plurality of jackscrew screws. According to the utility model, the structural design is reasonable, the X-direction positioning device, the Y-direction positioning device and the anti-deformation locking device are arranged on the positioning platform, so that a workpiece can be accurately positioned, meanwhile, the vertical bending deformation and the flat bending deformation of the workpiece are controlled by adopting a rigid fixed cutting mode, the cutting of the whole groove can be completed at one time, and the working efficiency is improved. And the deformation of the workpiece is reduced.
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Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical processing and manufacturing, and in particular relates to a flame cutting anti-deformation device for a bevel of a slender workpiece. Background Art

[0002] During the bevel flame cutting process, the workpiece length-to-width ratio is above 8:1, and the workpiece length is about 3 meters. Such workpieces are greatly affected by thermal deformation during bevel flame cutting, which seriously affects the bevel processing quality. When bevel flame cutting is performed on slender workpieces with a width of less than 200 mm, the workpiece deformation is about 30 mm. During the cutting process, multiple shaping is required to complete the cutting of a bevel, which has a great impact on production efficiency and workpiece cutting quality, and affects the normal processing and use of the workpiece. Therefore, it is necessary to propose a bevel flame cutting anti-deformation device for slender workpieces that can reduce the deformation during the workpiece cutting process. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a flame cutting anti-deformation device for the groove of a slender workpiece in view of the deficiencies in the above-mentioned prior art. The device has a reasonable structural design and is easy to disassemble and assemble. By arranging an X-direction positioning device, a Y-direction positioning device and an anti-deformation locking device on the positioning platform, the workpiece can be accurately positioned. At the same time, a rigid fixed cutting method is adopted to control the vertical bending deformation and the horizontal bending deformation of the workpiece. The entire groove cutting can be completed at one time, reducing the deformation of the workpiece during the cutting process.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a slender workpiece bevel flame cutting anti-deformation device, characterized in that: it includes a positioning platform, the positioning platform is provided with an X-direction positioning device as a fixed reference of the workpiece in the X direction and a Y-direction positioning device as a fixed reference of the workpiece in the Y direction, the positioning platform is also provided with an anti-deformation locking device to prevent the workpiece from being deformed, the Y-direction positioning device and the anti-deformation locking device are respectively arranged on two sides of the positioning platform that are arranged oppositely;

[0005] The positioning platform is provided with a plurality of T-shaped positioning slots, wherein the T-shaped positioning slots include a circular hole and an elongated hole connected to the circular hole;

[0006] The X-direction positioning device comprises a fixed positioning plate arranged at one end of the positioning platform and a movable positioning block arranged on the positioning platform close to the fixed positioning plate, the fixed positioning plate is fixed to the positioning platform by a positioning pin, and the lower end of the positioning pin is inserted into the circular hole;

[0007] The Y-direction positioning device comprises two positioning locking plates arranged on the positioning platform, a plurality of adjustable locking plates are arranged between the two positioning locking plates, the positioning locking plates and the adjustable locking plates are both connected to the positioning platform via locking screws, and the locking screws are installed in the T-shaped positioning slots;

[0008] The anti-deformation locking device includes a plurality of top screws, each of which is slidably mounted on the positioning platform via a slider, a threaded hole for the top screw to pass through is provided on the slider, and the slider is slidably matched with a T-shaped positioning slot.

[0009] The above-mentioned flame cutting anti-deformation device for the bevel of a slender workpiece is characterized in that: the positioning platform includes two bottom plates arranged opposite to each other up and down, a plurality of vertical plates are connected between the two bottom plates, and the T-shaped positioning slot is opened on the bottom plate.

[0010] The above-mentioned anti-deformation device for flame cutting of the groove of a slender workpiece is characterized in that: a plurality of protrusions are symmetrically arranged on the upper and lower sides of the vertical plate, a plurality of slots matching with the protrusions are arranged on the bottom plate, and the vertical plate and the bottom plate are welded.

[0011] The above-mentioned anti-deformation device for flame cutting of the groove of a slender workpiece is characterized in that the positioning locking pressure plate and the adjustable locking pressure plate are both step-shaped pressure plates with a positioning groove at the bottom of one end, one groove wall of the positioning groove is a positioning surface, and the other groove wall of the positioning groove is provided with multiple anti-slip grooves.

[0012] The above-mentioned anti-deformation device for flame cutting of a slender workpiece groove is characterized in that a circular positioning hole for a locking screw to pass through is provided on the end of the positioning locking plate away from the positioning groove, and a waist-shaped adjustment hole for a locking screw to pass through is provided on the end of the adjustable locking plate away from the positioning groove.

[0013] The above-mentioned anti-deformation device for flame cutting of a slender workpiece groove is characterized in that one end of the workpiece is arranged close to the side of the movable positioning block away from the fixed positioning plate, one side of the workpiece is arranged close to the positioning surface, and the other side of the workpiece is pressed against the end of the top screw.

[0014] The above-mentioned anti-deformation device for flame cutting of the bevel of a slender workpiece is characterized in that a limiting screw head is provided at the lower end of the locking screw, and a locking nut is provided on the locking screw to cooperate with its thread, the limiting screw head is arranged close to the bottom of an upper base plate, and the locking nut is arranged close to the top of an upper base plate.

[0015] The above-mentioned anti-deformation device for flame cutting of a bevel of a slender workpiece is characterized in that the slider is a T-shaped slider composed of an upper slider body and a limit block at the bottom, the limit block is arranged close to the bottom of an upper base plate, and the threaded hole is arranged on the slider body.

[0016] The above-mentioned flame cutting anti-deformation device for the groove of a slender workpiece is characterized in that a cushion block is arranged between the positioning locking pressure plate and the positioning platform and between the adjustable locking pressure plate and the positioning platform.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] 1. The utility model arranges an X-direction positioning device, a Y-direction positioning device and an anti-deformation locking device on the positioning platform, so as to facilitate the use of a rigid fixed cutting method to control the vertical bending deformation and the horizontal bending deformation of the workpiece, effectively ensure the bevel flame cutting quality of the workpiece, and reduce the deformation of the workpiece during the cutting process.

[0019] 2. The utility model provides a plurality of T-shaped positioning slots composed of circular holes and long strip holes on the positioning platform, which facilitates the detachable installation of the X-direction positioning device, the Y-direction positioning device and the anti-deformation locking device, and can effectively improve the positioning accuracy and efficiency of the workpiece. At the same time, it is convenient to flexibly adjust the positions of the positioning locking plate, the adjustable locking plate and the top screw, thereby ensuring the cutting quality of the workpiece.

[0020] To sum up, the utility model has a reasonable structural design and is easy to disassemble and assemble. By arranging an X-direction positioning device, a Y-direction positioning device and an anti-deformation locking device on the positioning platform, the workpiece can be accurately positioned. At the same time, a rigid fixed cutting method is adopted to control the vertical bending deformation and horizontal bending deformation of the workpiece. The entire groove cutting can be completed at one time, reducing the deformation of the workpiece during the cutting process.

[0021] The technical solution of the utility model is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model.

[0023] Figure 2 It is a three-dimensional diagram of the bottom plate of the utility model.

[0024] Figure 3 It is a three-dimensional diagram of the vertical plate of the utility model.

[0025] Figure 4 The utility model is a schematic diagram of the assembly structure of a base plate and a vertical plate.

[0026] Figure 5It is a three-dimensional diagram of the positioning and locking pressure plate of the utility model.

[0027] Figure 6 It is a plan view of the positioning and locking pressure plate of the utility model.

[0028] Figure 7 It is a three-dimensional diagram of the adjustable locking pressure plate of the utility model.

[0029] Figure 8 It is a three-dimensional diagram of the utility model in use state.

[0030] Fig. 9 It is a side view of the utility model in use state.

[0031] Description of reference numerals:

[0032] 1—bottom plate; 1-1—T-shaped positioning slide; 1-2—card slot;

[0033] 2—vertical plate; 2-1—protrusion; 3—fixed positioning plate;

[0034] 4—Location pin; 5—Active positioning block; 6—Location locking plate;

[0035] 7—Adjustable locking plate; 8—Locking screw; 8-1—Limiting screw head;

[0036] 9—locking nut; 10—positioning surface; 11—anti-slip groove;

[0037] 12—circular positioning hole; 13—waist-shaped adjustment hole; 14—cushion block;

[0038] 15—jackscrew; 16—slider; 17—workpiece. DETAILED DESCRIPTION

[0039] like Figures 1 to 9 As shown, the utility model includes a positioning platform, on which an X-direction positioning device serving as a fixed reference in the X direction of the workpiece 17 and a Y-direction positioning device serving as a fixed reference in the Y direction of the workpiece 17 are provided, and an anti-deformation locking device for preventing the workpiece 17 from deforming is also provided on the positioning platform, and the Y-direction positioning device and the anti-deformation locking device are respectively arranged on two opposite sides of the positioning platform;

[0040] The positioning platform is provided with a plurality of T-shaped positioning slots 1-1, wherein the T-shaped positioning slots 1-1 include a circular hole and a long strip hole connected to the circular hole;

[0041] The X-direction positioning device comprises a fixed positioning plate 3 arranged at one end of the positioning platform and a movable positioning block 5 arranged on the positioning platform close to the fixed positioning plate 3, the fixed positioning plate 3 is fixed to the positioning platform by a positioning pin 4, and the lower end of the positioning pin 4 is inserted into the circular hole;

[0042] The Y-direction positioning device includes two positioning locking plates 6 arranged on the positioning platform, and a plurality of adjustable locking plates 7 are arranged between the two positioning locking plates 6. The positioning locking plates 6 and the adjustable locking plates 7 are connected to the positioning platform through locking screws 8, and the locking screws 8 are installed in the T-shaped positioning slots 1-1;

[0043] The anti-deformation locking device includes a plurality of top screws 15, each of which is slidably mounted on the positioning platform via a slider 16, a threaded hole for the top screw 15 to pass through is provided on the slider 16, and the slider 16 is slidably matched with the T-shaped positioning slot 1-1.

[0044] In actual use, by arranging an X-direction positioning device, a Y-direction positioning device and an anti-deformation locking device on the positioning platform, it is convenient to adopt a rigid fixed cutting method to control the vertical bending deformation and horizontal bending deformation of the workpiece 17, which can effectively ensure the quality of the bevel flame cutting of the workpiece 17 and reduce the deformation of the workpiece during the cutting process.

[0045] It should be noted that by arranging a plurality of T-shaped positioning grooves 1-1 composed of circular holes and elongated holes on the positioning platform, the detachable installation of the X-direction positioning device, the Y-direction positioning device and the anti-deformation locking device is facilitated, which can effectively improve the positioning accuracy and efficiency of the workpiece 17. At the same time, it is convenient to flexibly adjust the positions of the positioning locking pressure plate 6, the adjustable locking pressure plate 7 and the top screw 15, thereby ensuring the cutting quality of the workpiece 17.

[0046] In specific implementation, the positioning locking plate 6 and the adjustable locking plate 7 are fixed by installing a locking screw 8 in the T-shaped positioning slot 1-1, which not only allows the positions of the positioning locking plate 6 and the adjustable locking plate 7 to be flexibly adjusted, but also allows the workpiece 17 to be locked.

[0047] During specific implementation, the top screw 15 is arranged along the width direction of the positioning platform, and the long strip hole is opened along the length direction of the positioning platform.

[0048] In specific implementation, the X direction refers to the length direction of the workpiece 17, and the Y direction refers to the width direction of the workpiece 17. The length direction of the workpiece 17 is consistent with the length direction of the positioning platform, and the width direction of the workpiece 17 is consistent with the width direction of the positioning platform.

[0049] During specific implementation, the diameter of the circular hole in the T-shaped positioning slot 1 - 1 is greater than the width of the elongated hole, the positioning pin 4 matches the circular hole, and the diameter of the positioning pin 4 is greater than the width of the elongated hole.

[0050] During specific implementation, the fixed positioning plate 3 and the movable positioning block 5 are both in the shape of long strips and are arranged along the width direction of the positioning platform.

[0051] like Figures 1 to 4 As shown, in this embodiment, the positioning platform includes two bottom plates 1 arranged opposite to each other up and down, a plurality of vertical plates 2 are connected between the two bottom plates 1, and the T-shaped positioning slot 1 - 1 is opened on the bottom plate 1.

[0052] In actual use, the positioning platform is formed by connecting a plurality of vertical plates 2 between two bottom plates 1, so that the front and back sides of the positioning platform can be interchanged and used at will.

[0053] In specific implementation, the length of a single positioning platform is 2150 mm, the width is 950 mm, and the height is 90 mm. According to the size of the workpiece 17, multiple positioning platforms can be combined and used in the length and width directions, and the application range is wide.

[0054] In specific implementation, each base plate 1 is provided with four rows of T-shaped positioning grooves 1-1 along its length direction, each row includes five T-shaped positioning grooves 1-1, and the five T-shaped positioning grooves 1-1 in each row are arranged in sequence along the width direction of the base plate 1, the circular holes of the two rows of T-shaped positioning grooves 1-1 located at both ends of the base plate 1 are arranged far away from each other, and the circular holes of the two rows of T-shaped positioning grooves 1-1 located in the middle of the base plate 1 are close to and overlap with each other.

[0055] like Figure 3 As shown, in this embodiment, a plurality of protrusions 2-1 are symmetrically provided on the upper and lower sides of the vertical plate 2, a plurality of slots 1-2 matching with the protrusions are provided on the bottom plate 1, and the vertical plate 2 and the bottom plate 1 are welded.

[0056] In actual use, the design of the protrusion 2-1 and the slot makes the positioning platform designed as a mortise and tenon structure, with a small amount of welding, no need for mechanical processing after welding, low processing cost, and no need for daily maintenance in the later stage.

[0057] During specific implementation, the length of the vertical plate 2 is the same as that of the bottom plate 1 , and two ends of the vertical plate 2 are flush with two ends of the bottom plate 1 .

[0058] like Figures 5 to 7 As shown, in this embodiment, the positioning locking pressure plate 6 and the adjustable locking pressure plate 7 are both step-shaped pressure plates with a positioning groove at the bottom of one end, one groove wall of the positioning groove is a positioning surface 10, and the other groove wall of the positioning groove is provided with multiple anti-slip grooves 11.

[0059] In actual use, the provision of the anti-skid groove 11 can effectively reduce the contact area between the positioning locking plate 6 or the adjustable locking plate 7 and the workpiece 17, thereby increasing the anti-skid and locking force.

[0060] like Figures 5 to 7 As shown, in this embodiment, a circular positioning hole 12 for the locking screw 8 to pass through is provided on the end of the positioning locking pressure plate 6 away from the positioning groove, and a waist-shaped adjustment hole 13 for the locking screw 8 to pass through is provided on the end of the adjustable locking pressure plate 7 away from the positioning groove.

[0061] In actual use, by providing a waist-shaped adjustment hole 13 for the locking screw 8 to pass through on the adjustable locking plate 7, the locking screw 8 can be adjusted to a certain position relative to the adjustable locking plate 7, thereby taking into account the influence of the straightness of the workpiece being cut, which is convenient for installation and adjustment.

[0062] In specific implementation, the locking screw 8, the positioning locking pressure plate 6 and the adjustable locking pressure plate 7 can control the cutting deformation (flat bending) and partial deformation (vertical bending) of the workpiece 17 in the Z direction, and the top screw 15 and the slider 16 cooperate to control the deformation of the workpiece 17 in the Y direction.

[0063] like Figure 8 and Fig. 9 As shown, in this embodiment, one end of the workpiece 17 is arranged close to the side of the movable positioning block 5 away from the fixed positioning plate 3, one side of the workpiece 17 is arranged close to the positioning surface 10, and the other side of the workpiece 17 is pressed against the end of the top screw 15.

[0064] like Fig. 9 As shown, in this embodiment, a limiting screw head 8-1 is provided at the lower end of the locking screw 8, and a locking nut 9 is provided on the locking screw 8 to cooperate with its thread. The limiting screw head 8-1 is arranged close to the bottom of an upper base plate 1, and the locking nut 9 is arranged close to the top of an upper base plate 1.

[0065] In actual use, the size of the limiting screw head 8-1 is not larger than the size of the circular hole in the T-shaped positioning slot 1-1, so that the limiting screw head 8-1 can pass through the circular hole and will not come out of the long strip hole.

[0066] In specific implementation, when installing the locking screw 8, first make the limiting screw head 8-1 at the bottom of the locking screw 8 pass through the circular hole of the T-shaped positioning slot 1-1 and extend between the two base plates 1, and then slide the locking screw 8 along the long strip hole of the T-shaped positioning slot 1-1 to the corresponding position.

[0067] like Fig. 9As shown, in this embodiment, the slider 16 is a T-shaped slider composed of an upper slider body and a limit block at the bottom. The limit block is arranged close to the bottom of an upper base plate 1, and the threaded hole is arranged on the slider body.

[0068] In actual use, the size of the limit block at the bottom of the slider 16 is not larger than the size of the circular hole in the T-shaped positioning slot 1-1, so that the limit block at the bottom of the slider 16 can pass through the circular hole and will not come out of the long strip hole.

[0069] In specific implementation, when installing the slider 16, first make the limit block at the bottom of the slider 16 pass through the circular hole of the T-shaped positioning slot 1-1 and extend between the two base plates 1, and then slide the slider body at the top of the slider 16 along the long strip hole of the T-shaped positioning slot 1-1 to the corresponding position.

[0070] In this embodiment, cushion blocks 14 are provided between the positioning locking pressure plate 6 and the positioning platform, and between the adjustable locking pressure plate 7 and the positioning platform.

[0071] In actual use, the thickness of the pad 14 can be flexibly changed according to the thickness of the workpiece 17, so that when the workpiece 17 is locked, the pad 14 is located between the bottom of the end of the positioning locking plate 6 or the adjustable locking plate 7 where the positioning groove is not set and the positioning platform, and the workpiece 17 is located between the positioning groove of the positioning locking plate 6 or the adjustable locking plate 7 and the positioning platform.

[0072] When the utility model is actually used, Figure 8 and Fig. 9 As shown, firstly, the fixed positioning plate 3 and the positioning pin 4 are connected together and fixed by spot welding, and then the positioning pin 4 is inserted into the circular hole of the T-shaped positioning slot 1-1 on the leftmost side of the positioning platform to complete the installation of the fixed positioning plate 3 as the X-direction fixed reference, and then the movable positioning block 5 is placed on the positioning platform close to the fixed positioning plate 3, and considering the width of the workpiece 17 to be cut, the locking screws 8 are sequentially placed into the corresponding T-shaped positioning slots 1-1, and then the positioning locking pressure plate 6 is preliminarily installed on the two locking screws 8 at both ends of the positioning platform through the locking nuts 9, and a plurality of top screws 15 are installed on the positioning platform through the slider 16;

[0073] Place the workpiece 17 flat on the positioning platform, and make the long side of one side of the workpiece 17 close to the positioning surface 10 of the positioning locking plate 6, make the upper surface of the workpiece 17 close to the positioning groove of the positioning locking plate 6, and set a cushion block 14 under the positioning locking plate 6, then make one end of the workpiece 17 close to the movable positioning block 5, adjust the position of the workpiece 17, and tighten the locking nut 9; then install multiple adjustable locking plates 7, and adjust the position of the slider 16 and the elongation of the top screw 15, so that the top screw 15 can tighten the workpiece 17;

[0074] The movable positioning block 5 is removed, and in order to reduce cutting deformation, a cutting process of starting the gun in the middle and symmetrical cutting is adopted to flame cut one side of the workpiece 17 to form a groove.

[0075] The above is only a preferred embodiment of the present invention and does not constitute any limitation to the present invention. Any simple modification, change and equivalent structural change made to the above embodiments according to the technical essence of the present invention shall still fall within the protection scope of the technical solution of the present invention.

Claims

1. A flame cutting anti-deformation device for bevel of slender workpiece, characterized in that: The invention comprises a positioning platform, wherein the positioning platform is provided with an X-direction positioning device serving as a fixed reference in the X direction of the workpiece (17) and a Y-direction positioning device serving as a fixed reference in the Y direction of the workpiece (17), and the positioning platform is also provided with an anti-deformation locking device for preventing the workpiece (17) from deforming, wherein the Y-direction positioning device and the anti-deformation locking device are respectively arranged on two opposite sides of the positioning platform; The positioning platform is provided with a plurality of T-shaped positioning slots (1-1), wherein the T-shaped positioning slots (1-1) comprise a circular hole and an elongated hole connected to the circular hole; The X-direction positioning device comprises a fixed positioning plate (3) arranged at one end of the positioning platform and a movable positioning block (5) arranged on the positioning platform in close contact with the fixed positioning plate (3); the fixed positioning plate (3) is fixed to the positioning platform via a positioning pin (4); the lower end of the positioning pin (4) is inserted into the circular hole; The Y-direction positioning device comprises two positioning locking plates (6) arranged on the positioning platform, a plurality of adjustable locking plates (7) are arranged between the two positioning locking plates (6), the positioning locking plates (6) and the adjustable locking plates (7) are both connected to the positioning platform via locking screws (8), and the locking screws (8) are installed in the T-shaped positioning slots (1-1); The anti-deformation locking device comprises a plurality of top screws (15), each of the top screws (15) being slidably mounted on the positioning platform via a slider (16), the slider (16) being provided with a threaded hole for the top screw (15) to pass through, and the slider (16) being slidably matched with a T-shaped positioning slot (1-1).

2. A flame cutting anti-deformation device for bevel of a slender workpiece according to claim 1, characterized in that: The positioning platform comprises two bottom plates (1) arranged opposite to each other up and down, a plurality of vertical plates (2) are connected between the two bottom plates (1), and the T-shaped positioning slot (1-1) is provided on the bottom plates (1).

3. A flame cutting anti-deformation device for bevel of a slender workpiece according to claim 2, characterized in that: The upper and lower sides of the vertical plate (2) are symmetrically provided with a plurality of protrusions (2-1); the bottom plate (1) is provided with a plurality of slots (1-2) matching the protrusions; the vertical plate (2) and the bottom plate (1) are welded.

4. A flame cutting anti-deformation device for bevel of a slender workpiece according to claim 1, characterized in that: The positioning locking pressure plate (6) and the adjustable locking pressure plate (7) are both step-shaped pressure plates with a positioning groove at the bottom of one end, one groove wall of the positioning groove is a positioning surface (10), and the other groove wall of the positioning groove is provided with a plurality of anti-slip grooves (11).

5. A flame cutting anti-deformation device for bevel of a slender workpiece according to claim 4, characterized in that: A circular positioning hole (12) for the locking screw (8) to pass through is provided on the end of the positioning locking pressure plate (6) away from the positioning groove, and a waist-shaped adjustment hole (13) for the locking screw (8) to pass through is provided on the end of the adjustable locking pressure plate (7) away from the positioning groove.

6. A flame cutting anti-deformation device for bevel of a slender workpiece according to claim 4, characterized in that: One end of the workpiece (17) is arranged closely against a side of the movable positioning block (5) away from the fixed positioning plate (3), one side of the workpiece (17) is arranged closely against the positioning surface (10), and the other side of the workpiece (17) is tightly pressed against the end of the top screw (15).

7. A flame cutting anti-deformation device for bevel of a slender workpiece according to claim 2, characterized in that: A limiting screw head (8-1) is arranged at the lower end of the locking screw (8), and a locking nut (9) threadably matched with the limiting screw head (8) is arranged on the locking screw (8), the limiting screw head (8-1) is arranged closely to the bottom of an upper base plate (1), and the locking nut (9) is arranged closely to the top of an upper base plate (1).

8. The flame cutting anti-deformation device for bevel of a slender workpiece according to claim 2, characterized in that: The slider (16) is a T-shaped slider consisting of an upper slider body and a limit block at the bottom. The limit block is arranged close to the bottom of an upper base plate (1), and the threaded hole is arranged on the slider body.

9. The flame cutting anti-deformation device for bevel of a slender workpiece according to claim 1, characterized in that: Pads (14) are provided between the positioning locking pressure plate (6) and the positioning platform, and between the adjustable locking pressure plate (7) and the positioning platform.