Hexagonal steel bar machining and drawing machine tool capable of preventing surface damage

Abstract

The invention relates to the technical field of hexagonal steel bars, and discloses a hexagonal steel bar machining drawing machine tool capable of preventing surface damage, the hexagonal steel bar machining drawing machine tool comprises a sliding lock mechanism, the bottom side of the right end of the sliding lock mechanism is movably connected with a clamping mechanism, and the outer side of the clamping mechanism is sleeved with a sliding plate mechanism and a telescopic mechanism; the top side of the telescopic mechanism is located on the bottom side of the sliding plate mechanism, a scaling mechanism is connected into the telescopic mechanism in a penetrating mode, and a push rod is connected into the scaling mechanism in a penetrating mode. Through cooperative use of the scaling mechanism and the telescopic mechanism, the bottom side of a steel bar is machined, cut and ground by means of pushing of the telescopic mechanism, grinding can be conveniently conducted according to different sizes of the steel bar, after the inner structure of the push-pull assembly rotates in a triangular shape, the part of the push-pull assembly can drive the steel bar to rotate, the balanced side of each time faces downwards, and therefore the steel bar can be conveniently ground. The hexagonal steel bar can be formed by combining the three sides of the push-pull assembly and trapezoid drawing in the telescopic mechanism, and all the faces of the hexagonal steel bar can be kept at the same angle.

Description

Technical Field

[0001] This invention relates to the field of hexagonal steel bar technology, specifically to a drawing machine tool for processing hexagonal steel bars to prevent surface damage. Background Technology

[0002] Stainless steel hexagonal bars have good corrosion resistance and are widely used in the field of machining. In the manufacturing process, the sidewalls of stainless steel hexagonal bars are formed by turning the initial steel bar and then drawing the sidewalls.

[0003] During the processing, different sizes of hexagonal steel bars need to be produced for processing according to the differences in production needs. Each processing requires changing the clamping tool for drawing. Furthermore, due to some clamping and grinding tools with slightly different sizes, the hexagonal steel bar may experience significant wear on its edges or surfaces during the grinding process because of size discrepancies. Additionally, the six edges of the hexagonal steel bar may not be ground symmetrically. Summary of the Invention

[0004] The purpose of this invention is to provide a hexagonal steel bar processing and drawing machine tool that prevents surface damage, thereby addressing the potential problems of wear and asymmetry in the hexagonal steel bar processing and drawing process.

[0005] To achieve the above objectives, the present invention specifically adopts the following technical solution:

[0006] A hexagonal steel bar drawing machine tool for preventing surface damage includes a sliding lock mechanism. A clamping mechanism is movably connected to the bottom right end of the sliding lock mechanism. A sliding plate mechanism and a telescopic mechanism are sleeved on the outer side of the clamping mechanism. The top side of the telescopic mechanism is located on the bottom side of the sliding plate mechanism. A scaling mechanism is connected through the telescopic mechanism, and a push rod is connected through the scaling mechanism. A push-pull assembly is sleeved on the outer right end of the push rod. A support platform is fixedly installed on the bottom left end of the sliding lock mechanism. A main rod is fixedly connected to the lower inner side of the support platform. A movable frame is movably connected to the right end of the main rod. The top of the movable frame is fixedly installed on the bottom side of the push-pull assembly. A sliding mechanism is movably connected to the top end of the movable frame. A pressing assembly is fixedly connected to the left end of the sliding mechanism, and the bottom end of the pressing assembly is slidably connected to the top side of the main rod.

[0007] Furthermore, the sliding lock mechanism includes a clamping frame, a slide, a slide rod, and a pedal. The bottom side of the clamping frame is fixedly connected to the top side of the support platform. The inner sides of the slide rod and the pedal are movably connected to the top outer side of the clamping mechanism. The left end of the slide is fixedly connected to the top end of the clamping frame. The right end of the slide is connected through to the top end of the slide rod. The top side of the pedal is fixedly connected to the bottom end of the slide rod.

[0008] Furthermore, the clamping mechanism includes a limiting plate and a clamping plate. The top of the clamping plate is movably connected to the inner top of the limiting plate, and the top side of the limiting plate is movably connected to the inner bottom side of the sliding lock mechanism. The inner side of the sliding rod slides from left to right along the outer side of the limiting plate. The steel rod is located inside the clamping plate for clamping and then moves backward to press the part of the component.

[0009] Furthermore, the skateboard mechanism includes a movable ring, a support rod, a sliding cover, and a support block. The inner ring of the movable ring is fitted onto the outer side of the clamping mechanism. The bottom ends of the support rod and the support block are movably connected to the top side of the telescopic mechanism. The outer side of the telescopic mechanism is provided with a folded groove. The bottom end of the support block is movably connected to the groove on the outer side of the telescopic mechanism. The left end of the support rod is connected through to the top of the movable ring. The right end of the support rod is slidably connected to the inner side of the support rod. The top end of the support block is fixedly connected to the bottom side of the support rod.

[0010] Furthermore, the telescopic mechanism includes an outer ring and a cover tube. The outer side of the outer ring is movably connected to the inner ring of the telescopic mechanism. The outer left end of the cover tube is connected through to the inner side of the outer ring. The outer side of the cover tube is movably connected to the inner ring of the telescopic mechanism. The left end of the outer ring is movably connected to the right end of the slide mechanism. The side wall of the telescopic frame will bend towards the side wall of the telescopic mechanism. The left and right sliding of the telescopic frame can drive the outer side of the cover tube and the inner side of the outer ring to slide left and right.

[0011] Furthermore, the scaling mechanism includes an adjusting ring, a telescopic frame, a movable rod, and a limiting frame. The inner ring of the adjusting ring is movably connected to the top right side of the telescopic mechanism. The left end of the telescopic frame is connected through to the inner side wall of the right end of the telescopic mechanism. The movable rod is fixedly connected to the right end of the telescopic frame. The inner side of the limiting frame is connected through to the outer side of the movable rod. The movable rod can cause the telescopic frame to retract to the left. The side wall of the telescopic frame will bend towards the side wall of the telescopic mechanism. The left and right sliding of the telescopic frame can cause the outer side of the cover tube and the inner side of the outer ring to slide left and right.

[0012] Furthermore, the push-pull assembly includes a collar, a movable frame, a triangular block, a support base, and a base. The outer ring of the collar is connected to the inner side of the movable frame. The movable frame is triangular in shape. The inner end of the triangular block is fixedly connected to the inner angle of the movable frame and the outer side of the collar. The outer bottom side of the movable frame is movably connected to the top of the support base. The outer bottom side of the support base is movably connected to the top side of the base. When the bottom side of the steel bar is cut, rotating the push-pull assembly, the collar rotates clockwise, which in turn rotates the triangular block.

[0013] Furthermore, the pressing assembly includes a movable plate, a pressure plate, a bracket, and an elastic plate. The inner side of the pressure plate is fixedly connected to the left end of the sliding mechanism. The bottom side of the elastic plate is fixedly connected to the top side of the pressure plate. The bottom side of the movable plate is fixedly connected to the top side of the elastic plate. The outer side of the bottom of the elastic nail is connected through the inner wall of the movable plate. The top sides of the movable plate and the elastic nail are movably connected to the bottom side of the clamping mechanism. When the part of the pressing assembly moves from the rear end to the upper end, it can drive the side wall of the support rod and the side wall of the sliding cone to rotate upward for adjustment.

[0014] Furthermore, the sliding mechanism includes a slider, a slide bar, a conical shell, a sliding cone, and a support rod. The top end of the slider is fixedly connected to the bottom side of the push-pull assembly. The right end of the slide bar is connected through to the left end of the slider. The right end of the conical shell is fixedly connected to the left end of the slide bar. The right end of the sliding cone is slidably connected to the inner side of the conical shell. The right end of the support rod is fixedly connected to the left end of the sliding cone. The left end of the support rod is fixedly connected to the right side of the pressing assembly. When the pressing assembly moves from the rear end to the top end, it can drive the side wall of the support rod and the side wall of the sliding cone to rotate upward for adjustment.

[0015] Compared with the prior art, the present invention provides a drawing machine tool for hexagonal steel bars that prevents surface damage, and has the following beneficial effects:

[0016] 1. This hexagonal steel bar processing and drawing machine, which prevents surface damage, uses a sliding lock mechanism and a clamping mechanism to hold the bottom side of the steel plate. The clamping degree can be adjusted for steel bars of different sizes, resulting in a tighter clamping and easier adjustment.

[0017] 2. This hexagonal steel bar processing and drawing machine tool, which prevents surface damage, uses the cooperation between the scaling mechanism and the telescopic mechanism. The telescopic mechanism pushes the bottom side of the steel bar to process and grind it, which can facilitate grinding according to different sizes of steel bars and reduce surface damage to steel bars caused by size discrepancies.

[0018] 3. This hexagonal steel bar processing and drawing machine tool, which prevents surface damage, uses a triangular rotating structure inside the push-pull assembly to rotate the steel bar. Each time, the balanced side faces down. The combination of the three sides of the push-pull assembly and the trapezoidal drawing mechanism inside the telescopic mechanism can complete the hexagonal steel bar, ensuring that all faces of the hexagonal steel bar maintain the same angle. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure and connection of the present invention;

[0020] Figure 2 This is a left cross-sectional view of the structural connection between the sliding lock mechanism and the clamping mechanism of the present invention;

[0021] Figure 3 This is a schematic diagram showing the internal structural connections of the telescopic mechanism and the scaling mechanism of the present invention;

[0022] Figure 4 This is a left-side cross-sectional view of the internal structural connections of the push-pull assembly of the present invention;

[0023] Figure 5 This is a detailed schematic diagram of the internal structural connections of the pressing component of the present invention;

[0024] Figure 6 This is a detailed schematic diagram of the internal structural connections of the sliding mechanism of the present invention;

[0025] Figure 7 This diagram illustrates the structural connection between the mobile frame and the main rod of the present invention.

[0026] In the diagram: 1. Slide lock mechanism; 101. Clamping frame; 102. Slide car; 103. Slide rod; 104. Pedal; 2. Clamping mechanism; 201. Limiting plate; 202. Clamping plate; 3. Slide mechanism; 301. Movable ring; 302. Support rod; 303. Slide cover; 304. Support block; 4. Telescopic mechanism; 401. Outer ring; 402. Cover tube; 5. Scaling mechanism; 501. Adjusting ring; 502. Telescopic frame; 503. Movable rod; 504. Limiting frame 6. Push rod; 7. Push-pull assembly; 701. Ring; 702. Movable frame; 703. Triangular block; 704. Support base; 705. Base; 8. Pressing assembly; 801. Movable plate; 802. Pressure plate; 803. Bracket; 804. Elastic plate; 805. Elastic nail; 9. Sliding mechanism; 901. Slider; 902. Sliding bar; 903. Conical shell; 904. Sliding cone; 905. Support rod; 10. Moving frame; 11. Main rod; 12. Support platform. Detailed Implementation

[0027] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] like Figures 1-7As shown, a hexagonal steel bar processing and drawing machine tool to prevent surface damage includes a sliding lock mechanism 1. A clamping mechanism 2 is movably connected to the bottom right end of the sliding lock mechanism 1. A sliding plate mechanism 3 and a telescopic mechanism 4 are sleeved on the outside of the clamping mechanism 2. The top side of the telescopic mechanism 4 is located on the bottom side of the sliding plate mechanism 3. A scaling mechanism 5 is connected through the inside of the telescopic mechanism 4. A push rod 6 is connected through the inside of the scaling mechanism 5. A push-pull assembly 7 is sleeved on the outside right end of the push rod 6. A support platform 12 is fixedly installed on the bottom left end of the sliding lock mechanism 1. A main rod 11 is fixedly connected to the lower inner side of the support platform 12. A movable frame 10 is movably connected to the right end of the main rod 11. The top of the movable frame 10 is fixedly installed on the bottom side of the push-pull assembly 7. A sliding mechanism 9 is movably connected to the top end of the movable frame 10. A pressing assembly 8 is fixedly connected to the left end of the sliding mechanism 9. The bottom end of the pressing assembly 8 is slidably connected to the top side of the main rod 11.

[0029] like Figure 1 and Figure 2 As shown, in some embodiments, the sliding lock mechanism 1 includes a clamping frame 101, a slide 102, a slide rod 103, and a pedal 104. The bottom side of the clamping frame 101 is fixedly connected to the top side of the support platform 12. The inner sides of the slide rod 103 and the pedal 104 are movably connected to the top outer side of the clamping mechanism 2. The left end of the slide 102 is fixedly connected to the top end of the clamping frame 101, and the right end of the slide 102 is connected through to the top end of the slide rod 103. The top side of the pedal 104 is fixedly connected to the bottom end of the slide rod 103.

[0030] like Figure 1 and Figure 2 As shown, in some embodiments, the clamping mechanism 2 includes a limiting plate 201 and a clamping plate 202. The top of the clamping plate 202 is movably connected to the inner top of the limiting plate 201, and the top side of the limiting plate 201 is movably connected to the inner bottom side of the sliding lock mechanism 1. The part of the sliding lock mechanism 1 slides from left to right along the outer side of the clamping mechanism 2, and the inner side of the slide rod 103 slides from left to right along the outer side of the limiting plate 201. The steel rod is clamped on the inner side of the clamping plate 202, and then the part of the pressing component 8 moves backward. The top of the movable plate 801 slides to the rear end, and the bottom side of the movable plate 801 slides upward along the side wall of the elastic nail 805. It can be placed on the bottom side of the clamping mechanism 2 to push the steel rod located at the inner bottom of the clamping plate 202 upward, and the parallel position of the steel rod can be held to prevent it from falling.

[0031] like Figure 1As shown, in some embodiments, the sliding plate mechanism 3 includes a movable ring 301, a support rod 302, a sliding cover 303, and a support block 304. The inner ring of the movable ring 301 is sleeved on the outer side of the clamping mechanism 2. The bottom ends of the support rod 302 and the support block 304 are movably connected to the top side of the telescopic mechanism 4. The outer side of the telescopic mechanism 4 is provided with a folded groove. The bottom end of the support block 304 is movably connected to the groove on the outer side of the telescopic mechanism 4. The left end of the support rod 302 is connected through to the top end of the movable ring 301, and the right end of the support rod 302 is slidably connected to the inner side of the support rod 302. The top end of the support block 304 is fixedly connected to the bottom side of the support rod 302.

[0032] like Figure 1 and Figure 3 As shown, in some embodiments, the telescopic mechanism 4 includes an outer ring 401 and a cover tube 402. The outer side of the outer ring 401 is movably connected to the inner ring of the scaling mechanism 5. The outer left end of the cover tube 402 is connected through to the inner side of the outer ring 401. The outer side of the cover tube 402 is movably connected to the inner ring of the scaling mechanism 5. The left end of the outer ring 401 is movably connected to the right end of the sliding plate mechanism 3. The scaling mechanism 5 includes an adjusting ring 501, a telescopic frame 502, a movable rod 503, and a limiting frame 504. The inner ring of the adjusting ring 501 is movably connected to the top right side of the telescopic mechanism 4. The left end of the telescopic frame 502 is connected through to the inner wall of the right end of the telescopic mechanism 4. The movable rod 503 is fixedly connected to the right end of the telescopic frame 502. The inner side of the limiting frame 504 is connected through to the movable rod 503. On the outside, the push-pull assembly 7 drives the push rod 6 to slide from the right end to the left end. The left end of the push rod 6 slides from the inside of the scaling mechanism 5 to the inside of the telescopic mechanism 4, which can push the telescopic frame 502 to the left end. The movable rod 503 can drive the telescopic frame 502 to retract to the left end. The side wall of the telescopic frame 502 will bend towards the side wall of the telescopic mechanism 4. The left and right sliding of the telescopic frame 502 can drive the outside of the cover tube 402 and the inside of the outer ring 401 to slide left and right. The side walls of the cover tube 402 and the outer ring 401 slide inward and outward. The inner end of the cover tube 402 can be pushed from the right end to the left end along the bottom side of the clamping mechanism 2. The bottom end of the inner side of the cover tube 402 is inverted trapezoidal. The bottom end of the inner side of the cover tube 402 can be processed and ground along the bottom side of the clamping mechanism 2.

[0033] like Figure 1 and Figure 4As shown, in some embodiments, the push-pull assembly 7 includes a collar 701, a movable frame 702, a triangular block 703, a support base 704, and a base 705. The outer ring of the collar 701 is connected to the inner side of the movable frame 702. The movable frame 702 is triangular in shape. The inner end of the triangular block 703 is fixedly connected to the inner angle of the movable frame 702 and the outer side of the collar 701. The outer bottom side of the movable frame 702 is movably connected to the top of the support base 704. The outer bottom side of the support base 704 is movably connected to... On the top side of the base 705, when the bottom side of the steel bar is cut, at the part of the rotating push-pull assembly 7, after the part of the collar 701 rotates clockwise, it can drive the part of the triangular block 703 to rotate. The part of the triangular block 703 rotates clockwise, which can drive the part of the movable frame 702 to rotate clockwise. When the right side of the movable frame 702 rotates to the bottom side, the unprocessed part of the steel bar is rotated to the bottom side to continue to be pulled. The three trapezoidal sides of the movable frame 702 can assist the telescopic mechanism 4 in completing the shape of the hexagonal side.

[0034] like Figure 1 and Figure 5 As shown, in some embodiments, the pressing assembly 8 includes a movable plate 801, a pressure plate 802, a bracket 803, and an elastic plate 804. The inner side of the pressure plate 802 is fixedly connected to the left end of the sliding mechanism 9. The bottom side of the elastic plate 804 is fixedly connected to the top side of the pressure plate 802. The bottom side of the movable plate 801 is fixedly connected to the top side of the elastic plate 804. The outer side of the bottom side of the elastic nail 805 is connected through the inner wall of the movable plate 801. The top sides of the movable plate 801 and the elastic nail 805 are movably connected to the bottom side of the clamping mechanism 2.

[0035] like Figure 1 and Figure 6 As shown, in some embodiments, the sliding mechanism 9 includes a slider 901, a slider 902, a conical shell 903, a sliding cone 904, and a support rod 905. The top end of the slider 901 is fixedly connected to the bottom side of the push-pull assembly 7. The right end of the slider 902 is connected through to the left end of the slider 901. The right end of the conical shell 903 is fixedly connected to the left end of the slider 902. The right end of the sliding cone 904 is slidably connected to the inner side of the conical shell 903. The right end of the support rod 905 is fixedly connected to the left end of the sliding cone 904. The left end of the support rod 905 is fixedly connected to the push-pull assembly 7. On the right side of the pressing component 8, when the sliding plate mechanism 3, the scaling mechanism 5, and the push-pull component 7 are tightened together, the outer side of the sliding cone 904 can slide into the cone shell 903. The right end of the sliding cone 904 can slide inward and outward from the inside of the slide bar 902. When the pressing component 8 moves from the rear end to the top, it can rotate the side wall of the support rod 905 and the side wall of the sliding cone 904 upward to support the hexagonal steel rod. At the same time, the bottom end of the pressing component 8 is supported on the main rod 11 and can be adjusted left and right.

[0036] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A hexagonal steel bar machining and drawing machine tool for preventing the occurrence of surface damage, comprising a slide lock mechanism (1), characterized in that: The right bottom side of the sliding lock mechanism (1) is movably connected to a clamping mechanism (2). A sliding plate mechanism (3) and a telescopic mechanism (4) are sleeved on the outside of the clamping mechanism (2). The top side of the telescopic mechanism (4) is located on the bottom side of the sliding plate mechanism (3). A scaling mechanism (5) is connected through the inside of the telescopic mechanism (4). A push rod (6) is connected through the inside of the scaling mechanism (5). A push-pull assembly (7) is sleeved on the right outer side of the push rod (6). The left bottom side of the sliding lock mechanism (1)... A support platform (12) is fixedly installed. A main rod (11) is fixedly connected to the lower inner side of the support platform (12). A movable frame (10) is movably connected to the right end of the main rod (11). The top of the movable frame (10) is fixedly installed on the bottom side of the push-pull assembly (7). A sliding mechanism (9) is movably connected to the top end of the movable frame (10). A pressing assembly (8) is fixedly connected to the left end of the sliding mechanism (9). The bottom end of the pressing assembly (8) is slidably connected to the top side of the main rod (11).

2. A machine for drawing hexagonal steel bars, according to claim 1, characterized in that: The sliding lock mechanism (1) includes a clamping frame (101), a slide (102), a slide rod (103), and a pedal (104). The bottom side of the clamping frame (101) is fixedly connected to the top side of the support platform (12). The inner sides of the slide rod (103) and the pedal (104) are movably connected to the top outer side of the clamping mechanism (2). The left end of the slide (102) is fixedly connected to the top end of the clamping frame (101). The right end of the slide (102) is connected through to the top end of the slide rod (103). The top side of the pedal (104) is fixedly connected to the bottom end of the slide rod (103).

3. The hexagonal steel bar processing and drawing machine according to claim 1, characterized in that: The clamping mechanism (2) includes a limiting plate (201) and a clamping plate (202). The top end of the clamping plate (202) is movably connected to the inner top end of the limiting plate (201), and the top side of the limiting plate (201) is movably connected to the inner bottom side of the sliding lock mechanism (1).

4. The hexagonal steel bar processing and drawing machine according to claim 1, characterized in that: The skateboard mechanism (3) includes a movable ring (301), a support rod (302), a sliding cover (303), and a support block (304). The inner ring of the movable ring (301) is fitted onto the outer side of the clamping mechanism (2). The bottom ends of the support rod (302) and the support block (304) are movably connected to the top side of the telescopic mechanism (4). The outer side of the telescopic mechanism (4) is provided with a folded groove. The bottom end of the support block (304) is movably connected to the groove on the outer side of the telescopic mechanism (4). The left end of the support rod (302) is connected through to the top end of the movable ring (301). The right end of the support rod (302) is slidably connected to the inner side of the support rod (302). The top end of the support block (304) is fixedly connected to the bottom side of the support rod (302).

5. The machine for drawing and processing hexagonal steel bars, according to claim 1, characterized in that: The telescopic mechanism (4) includes an outer ring (401) and a cover tube (402). The outer side of the outer ring (401) is movably connected to the inner ring of the scaling mechanism (5). The outer left end of the cover tube (402) is connected through to the inner side of the outer ring (401). The outer side of the cover tube (402) is movably connected to the inner ring of the scaling mechanism (5). The left end of the outer ring (401) is movably connected to the right end of the sliding plate mechanism (3).

6. A hexagonal steel bar drawing machine tool for preventing surface damage according to claim 1, characterized in that: The scaling mechanism (5) includes an adjusting ring (501), a telescopic frame (502), a movable rod (503), and a limiting frame (504). The inner ring of the adjusting ring (501) is movably connected to the top right side of the telescopic mechanism (4). The left end of the telescopic frame (502) is connected through to the inner wall of the right end of the telescopic mechanism (4). The movable rod (503) is fixedly connected to the right end of the telescopic frame (502). The inner side of the limiting frame (504) is connected through to the outer side of the movable rod (503).

7. A hexagonal steel bar drawing machine tool for preventing surface damage according to claim 1, characterized in that: The push-pull assembly (7) includes a collar (701), a movable frame (702), a triangular block (703), a support base (704), and a base (705). The outer ring of the collar (701) is connected to the inner side of the movable frame (702). The movable frame (702) is triangular in shape. The inner end of the triangular block (703) is fixedly connected to the inner angle of the movable frame (702) and the outer side of the collar (701). The outer bottom side of the movable frame (702) is movably connected to the top of the support base (704). The outer bottom side of the support base (704) is movably connected to the top of the base (705).

8. A hexagonal steel bar drawing machine tool for preventing surface damage according to claim 1, characterized in that: The pressing assembly (8) includes a movable plate (801), a pressure plate (802), a bracket (803), and an elastic plate (804). The inner side of the pressure plate (802) is fixedly connected to the left end of the sliding mechanism (9). The bottom side of the elastic plate (804) is fixedly connected to the top side of the pressure plate (802). The bottom side of the movable plate (801) is fixedly connected to the top side of the elastic plate (804). The outer side of the bottom side of the elastic nail (805) is connected through the inner wall of the movable plate (801). The top sides of the movable plate (801) and the elastic nail (805) are movably connected to the bottom side of the clamping mechanism (2).

9. A hexagonal steel bar drawing machine tool for preventing surface damage according to claim 1, characterized in that: The sliding mechanism (9) includes a slider (901), a slider (902), a conical shell (903), a sliding cone (904), and a support rod (905). The top end of the slider (901) is fixedly connected to the bottom side of the push-pull assembly (7). The right end of the slider (902) is connected through to the left end of the slider (901). The right end of the conical shell (903) is fixedly connected to the left end of the slider (902). The right end of the sliding cone (904) is slidably connected to the inner side of the conical shell (903). The right end of the support rod (905) is fixedly connected to the left end of the sliding cone (904). The left end of the support rod (905) is fixedly connected to the right side of the pressing assembly (8).

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