Auxiliary clamp for pressing steel ingot into steel bar and using method

Abstract

The present invention discloses an auxiliary clamp for pressing steel ingots into steel bars and a method for using the same. The clamp comprises a base and a flip mechanism, wherein the flip mechanism comprises four positioning rods, the four positioning rods being fixedly connected to the top and bottom ends of two positioning bars, the outer walls of the four positioning rods being fixedly sleeved with positioning rings, the outer walls of the four positioning rods being provided with external thread grooves, the tops of the four positioning plates being provided with positioning grooves, wherein the two positioning rods are movably inserted and connected to the interiors of the positioning grooves at corresponding positions, wherein the outer walls of the two external thread grooves and the positions below the positioning plates are both threadedly sleeved with first nuts. The present invention utilizes the arrangement of a rotating shaft, positioning rods, positioning rings, positioning plates, positioning grooves, external thread grooves and first nuts, and drives the positioning bars to rotate through the rotating shaft, so that the positioning rods are inserted into the corresponding positioning grooves. Then, the positioning rods and the positioning plates are fixed by the positioning of the positioning rings and the first nuts, thereby improving the protective effect of the welding clamp on the steel bars.

Description

Technical Field

[0001] The present invention relates to the field of steel bars, and in particular to an auxiliary clamp for pressing a steel ingot into a steel bar and a use method thereof. Background Art

[0002] When welding steel bars, welding fixtures are needed to clamp the steel bars to ensure that the steel bars remain fixed during welding. However, when welding double-sided panels, after welding one side of the double-sided panel, the welding fixture needs to release the clamp on the steel bar, turn the steel bar 180°, and re-clamp it. While clamping, the clamp will squeeze the steel bar again. Such repeated squeezing of the steel bar will cause damage to the steel bar, reducing the protective effect of the welding fixture on the steel bar. Summary of the Invention

[0003] The object of the present invention is to provide an auxiliary clamp for pressing a steel ingot into a steel bar, so as to solve the problems raised in the above background technology.

[0004] To achieve the above object, the present invention provides the following technical solution: an auxiliary clamp for pressing a steel ingot into a steel bar, comprising a base, a fixed plate fixedly connected to the top of the base, a movable plate movably provided on the top of the base, two positioning bars provided above the base, and a clamping mechanism provided on the top of each of the two positioning bars;

[0005] The turning mechanism comprises four positioning rods, the opposite sides of the fixed plate and the movable plate are rotatably connected to the rotating shaft, the back sides of the two positioning bars are respectively fixedly connected to the outer wall of the rotating shaft at the corresponding positions, the four positioning rods are respectively fixedly connected to the top and bottom ends of the two positioning bars, the outer walls of the four positioning rods are fixedly sleeved with positioning rings, the outer walls of the four positioning rods are provided with external thread grooves, the front and back sides of the fixed plate and the movable plate are fixedly connected to the connecting plate, the ends of the four connecting plates are fixedly connected to the positioning plates, and the tops of the four positioning plates are provided with positioning grooves, wherein the two positioning rods are movably inserted and connected to the inside of the positioning grooves at the corresponding positions, wherein the outer walls of the two external thread grooves and the lower positions of the positioning plates are threadedly sleeved with first nuts;

[0006] An adjusting mechanism, wherein the adjusting mechanism is arranged at the bottom end of the movable plate;

[0007] The amplifying mechanism is arranged above the base.

[0008] Preferably, the clamping mechanism includes a first bolt, a slot is provided on one side of the positioning bar, a first rubber pad and a second rubber pad are respectively attached to the bottom end and one side of the inner wall of the slot, two first threaded holes are provided at the top of the inner wall of the slot, the outer wall of the first threaded hole is threadedly connected to the outer wall of the first bolt, and a rubber block is attached to the bottom end of the first bolt.

[0009] Preferably, the adjustment mechanism includes a slider, a sliding groove is opened at the top of the base, the slider is slidably connected to the inner wall of the sliding groove, the top of the slider is fixedly connected to the bottom end of the movable plate, the inner wall of the sliding groove is rotatably connected with a first screw, a second threaded hole is opened on one side of the slider, and the inner wall of the second threaded hole is threadedly connected to the inner wall of the first screw.

[0010] Preferably, one end of the first screw rod passes through one side of the inner wall of the slide groove and is fixedly connected to a turntable, and a rotating handle is fixedly connected to the side of one side of the turntable.

[0011] Preferably, the front and back sides of the inner wall of the slide groove are provided with limiting grooves, the front and back sides of the slider are fixedly connected to limiting blocks, and the outer wall of the limiting block is slidably connected to the inner wall of the limiting groove.

[0012] Preferably, the magnifying mechanism includes a magnifying glass, a first rectangular frame is provided above the base, a second screw is fixedly connected to the bottom end of the first rectangular frame, a movable ring is movably sleeved on the outer wall of the second screw, a circular frame is fixedly connected to the outer wall of the movable ring, the magnifying glass is fixedly installed inside the circular frame, and a second nut is threadedly sleeved on the outer wall of the second screw and located below the movable ring.

[0013] Preferably, a first connecting rod is movably inserted into the inner wall of the first rectangular frame, a third threaded hole is formed at the top of the first rectangular frame, and a second bolt is threadedly connected to the inner wall of the third threaded hole.

[0014] Preferably, a second connecting rod is provided on one side of the first connecting rod, a dovetail groove is opened on one side of the second connecting rod, a dovetail block is slidably connected to the inner wall of the dovetail groove, and one side of the dovetail block is fixedly connected to one side of the first connecting rod.

[0015] Preferably, the other side of the second connecting rod is fixedly connected to a second rectangular frame, and the second rectangular frame is movably sleeved on the outer wall of the fixed plate. A socket is provided on one side of the second rectangular frame, and two telescopic cavities are provided on one side of the fixed plate. The inner walls of the two telescopic cavities are slidably connected to a limiting plate, and one side of the two limiting plates is fixedly connected to a spring, one side of the spring is fixedly connected to the inner wall of the telescopic cavity, and the other side of the two limiting plates is fixedly connected to an insert block, and the outer wall of one of the insert blocks is movably inserted and connected to the inner wall of the socket.

[0016] The present invention also provides a method for using an auxiliary clamp for pressing a steel ingot into a steel bar, comprising the following specific steps:

[0017] Step 1: Grab the handle and turn the turntable, so that the turntable drives the first screw to rotate. The rotation of the first screw drives the slider to move in the slide slot until the two positioning bars leave a suitable interval. Stop turning the turntable and insert the steel bar into the two slots until it contacts the back of the inner wall of the slot. Turn the first bolt clockwise in sequence to lower the first bolt until the rubber block contacts the steel bar, completing the clamping of the steel bar.

[0018] Step 2: squeeze the upper plug block so that the plug block squeezes the limit plate, and the limit plate squeezes the spring to compress the spring, so that the plug block moves into the telescopic cavity and separates from the socket, so that the plug block no longer lowers the second rectangular frame, and moves the second rectangular frame downward, while squeezing the lower plug block so that the corresponding spring is compressed and drives the plug block into the corresponding telescopic cavity until the second rectangular frame moves to the corresponding position. Under the elastic action of the spring, the lower plug block is ejected and inserted into the socket. At this time, the second rectangular frame is limited, and the magnifying glass is moved down close to the steel bar. While observing through the magnifying glass, the steel bar is welded by the external welding device;

[0019] Step 3: When the steel bar needs to be flipped, repeat step 2 in reverse, keep the magnifying glass away from the position of the steel bar, and turn the two first nuts counterclockwise until the two first nuts are separated from the corresponding two positioning rods. At this time, rotate the positioning bar so that the positioning bar rotates 180° around the rotating axis. At the same time, insert the other two positioning rods into the corresponding positioning grooves, align the two first nuts with the external thread grooves on the two positioning rods, and tighten the first nuts in the external thread grooves clockwise so that the positioning ring is close to the corresponding positioning plate. Complete the flipping and fixing of the steel bar, and repeat step 2 for welding.

[0020] Technical effects and advantages of the present invention:

[0021] (1) The present invention utilizes the arrangement of a rotating shaft, a positioning rod, a positioning ring, a positioning plate, a positioning groove, an external thread groove, and a first nut. The rotating shaft drives the positioning bar to rotate, so that the positioning rod is inserted into the corresponding positioning groove. The positioning ring and the first nut are then used to position the positioning rod and the positioning plate, thereby avoiding the need to squeeze the steel bar again when turning over, thereby improving the protective effect of the welding fixture on the steel bar;

[0022] (2) The present invention utilizes the arrangement of the slide groove, the slider and the first screw, and the first screw is rotated to drive the slider to slide in the slide groove, so that the slider drives the movable plate to move, and the movable plate drives the corresponding positioning bar to move, thereby changing the distance between the two positioning bars, and can clamp steel bars of different sizes, thereby improving the applicability of the welding fixture;

[0023] (3) The present invention utilizes a magnifying glass to magnify the steel bar during welding, making it easier for operators to observe the conditions of specific parts and improving the accuracy of steel bar welding. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0025] Figure 2 This is a schematic diagram of the front cross-sectional structure of the positioning rod of the present invention.

[0026] Figure 3 For the present invention Figure 1 Schematic diagram of the local enlarged structure at point A.

[0027] Figure 4 This is a schematic diagram of the front cross-sectional structure of the positioning strip of the present invention.

[0028] Figure 5 This is a schematic diagram of the side sectional structure of the slider of the present invention.

[0029] Figure 6 It is a schematic diagram of the side sectional structure of the magnifying glass of the present invention.

[0030] Figure 7 This is a schematic diagram of the front cross-sectional structure of the second rectangular frame of the present invention.

[0031] Figure: 1, base; 2, fixed plate; 3, movable plate; 4, rotating shaft; 5, positioning bar; 6, positioning rod; 7, positioning ring; 8, connecting plate; 9, positioning plate; 10, positioning groove; 11, external thread groove; 12, first nut; 13, slot; 14, first rubber pad; 15, second rubber pad; 16, first threaded hole; 17, first bolt; 18, rubber block; 19, slide groove; 20, slider; 21, first screw; 22, second threaded hole; 23, rotating shaft Plate; 24. Turning handle; 25. Limiting groove; 26. Limiting block; 27. First rectangular frame; 28. Second screw; 29. ​​Movable ring; 30. Round frame; 31. Magnifying glass; 32. Second nut; 33. First connecting rod; 34. Third threaded hole; 35. Second bolt; 36. Second connecting rod; 37. Dovetail groove; 38. Dovetail block; 39. Second rectangular frame; 40. Insertion hole; 41. Telescopic cavity; 42. Limiting plate; 43. Insertion block; 44. Spring. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] The present invention provides Figure 1-7 The auxiliary fixture shown is used for pressing a steel ingot into a steel bar, comprising a base 1, a fixed plate 2 fixedly connected to the top of the base 1, a movable plate 3 movably provided on the top of the base 1, two positioning bars 5 provided above the base 1, and a clamping mechanism provided on the top of each of the two positioning bars 5;

[0034] The turning mechanism comprises four positioning rods 6, one side of the fixed plate 2 and the movable plate 3 is rotatably connected to the rotating shaft 4, the back sides of the two positioning bars 5 are fixedly connected to the outer wall of the rotating shaft 4 at the corresponding position, the four positioning rods 6 are fixedly connected to the top and bottom ends of the two positioning bars 5, the outer walls of the four positioning rods 6 are fixedly sleeved with positioning rings 7, the outer walls of the four positioning rods 6 are provided with external threaded grooves 11, the front and back sides of the fixed plate 2 and the movable plate 3 are fixedly connected to the connecting plate 8, the ends of the four connecting plates 8 are fixedly connected to the positioning plates 9, the tops of the four positioning plates 9 are provided with positioning grooves 10, wherein the two positioning rods 6 are movably inserted and connected to the inside of the positioning grooves 10 at the corresponding positions, wherein the outer walls of the two external threaded grooves 11 and the lower positions of the positioning plates 9 are threadedly sleeved with first nuts 12, which are tightened on the external threaded grooves 11 by the first nuts 12, so that the positioning rings 7 are tightly against the positioning plates 9, avoiding the need to re-squeeze and clamp the steel bars when turning over the steel bars;

[0035] An adjusting mechanism is provided at the bottom end of the movable plate 3;

[0036] Amplifying mechanism, the amplifying mechanism is arranged above the base 1;

[0037] The clamping mechanism includes a first bolt 17, a slot 13 is provided on one side of the positioning bar 5, and a first rubber pad 14 and a second rubber pad 15 are respectively attached to the bottom end and one side of the inner wall of the slot 13. The first rubber pad 14 and the second rubber pad 15 can protect the steel bar inserted into the slot 13. The top of the inner wall of the slot 13 is provided with two first threaded holes 16. The outer wall of the first threaded hole 16 is threadedly connected to the outer wall of the first bolt 17. A rubber block 18 is attached to the bottom end of the first bolt 17. By tightening the first bolt 17, the rubber block 18 is pressed against the steel bar. During the welding process, only this one squeeze and clamping is required, and no squeezing and clamping is required again when flipping;

[0038] The adjustment mechanism includes a slider 20. A slide groove 19 is provided at the top of the base 1. The slider 20 is slidably connected to the inner wall of the slide groove 19. The top of the slider 20 is fixedly connected to the bottom end of the movable plate 3. The inner wall of the slide groove 19 is rotatably connected to a first screw 21. A second threaded hole 22 is provided on one side of the slider 20. The inner wall of the second threaded hole 22 is threadedly connected to the inner wall of the first screw 21. The slider 20 is moved by rotating the first screw 21, and the movement of the slider 20 drives the movable plate 3 to move, thereby changing the distance between the two positioning bars 5, and can clamp steel bars of different sizes;

[0039] One end of the first screw 21 passes through one side of the inner wall of the chute 19 and is fixedly connected to a turntable 23. A rotating handle 24 is fixedly connected to the side of one side of the turntable 23. By rotating the handle 24, the turntable 23 is rotated to rotate the first screw 21, thereby increasing the rotation arm and making the rotation of the first screw 21 more labor-saving.

[0040] Limiting grooves 25 are provided on the front and back sides of the inner wall of the slide 19. The front and back sides of the slider 20 are fixedly connected to limiting blocks 26. The outer wall of the limiting block 26 is slidably connected to the inner wall of the limiting groove 25. The limiting groove 25 limits the limiting block 26 to prevent the lateral force generated by the rotation of the first screw 21 on the slider 20 from causing the slider 20 to rotate, thereby improving the stability of the movement of the slider 20.

[0041] The magnifying mechanism includes a magnifying glass 31, through which the steel bar can be magnified, making it easier for the operator to align the pins of the electronic components with the welding points. A first rectangular frame 27 is provided above the base 1, and a second screw 28 is fixedly connected to the bottom end of the first rectangular frame 27. A movable ring 29 is movably sleeved on the outer wall of the second screw 28, and a circular frame 30 is fixedly connected to the outer wall of the movable ring 29. The magnifying glass 31 is fixedly installed inside the circular frame 30, and a second nut 32 is threadedly sleeved on the outer wall of the second screw 28 and located below the movable ring 29. By loosening the second nut 32, the movable ring 29 can be rotated on the second screw 28, thereby changing the position of the magnifying glass 31, facilitating the position adjustment of the magnifying glass 31, and increasing the magnification range.

[0042] A first connecting rod 33 is movably connected to the inner wall of the first rectangular frame 27. A third threaded hole 34 is formed at the top of the first rectangular frame 27. A second bolt 35 is threadedly connected to the inner wall of the third threaded hole 34. The first rectangular frame 27 slides on the first connecting rod 33 and is then squeezed into place by the second bolt 35, allowing the magnifying glass 31 to move laterally, further increasing the magnification range.

[0043] A second connecting rod 36 is provided on one side of the first connecting rod 33. A dovetail groove 37 is formed on one side of the second connecting rod 36. A dovetail block 38 is slidably connected to the inner wall of the dovetail groove 37. One side of the dovetail block 38 is fixedly connected to one side of the first connecting rod 33. The first connecting rod 33 slides in the dovetail groove 37 via the dovetail block 38 to adjust the position of the magnifying glass 31 longitudinally, further increasing the magnification range of the magnifying glass 31.

[0044] The other side of the second connecting rod 36 is fixedly connected to a second rectangular frame 39, which is movably sleeved on the outer wall of the fixed plate 2. A socket 40 is provided on one side of the second rectangular frame 39, and two telescopic cavities 41 are provided on one side of the fixed plate 2. The inner walls of the two telescopic cavities 41 are slidably connected to limit plates 42. One side of the two limit plates 42 is fixedly connected to a spring 44, and one side of the spring 44 is fixedly connected to the inner wall of the telescopic cavity 41. The other side of the two limit plates 42 is fixedly connected to an insert block 43, and the outer wall of one of the insert blocks 43 is movably inserted and connected with the inner wall of the socket 40. Through the elastic action of the spring 44, the insert block 43 can be inserted into the socket 40 to position the second rectangular frame 39. When the lower insert block 43 is inserted into the socket 40, the magnifying glass 31 is close to the position of the steel bar and can be magnified through the magnifying glass 31. When the upper insert block 43 is inserted into the socket 40, the magnifying glass 31 is away from the steel bar, so that the steel bar is not blocked when it is flipped.

[0045] The working principle of the present invention is as follows: grab the rotating handle 24 and rotate the rotary disk 23, so that the rotary disk 23 drives the first screw 21 to rotate, and the rotation of the first screw 21 drives the slider 20 to move in the slide groove 19 until the two positioning bars 5 leave a suitable interval, stop rotating the rotary disk 23, insert the steel bar into the two slots 13, until it contacts the back of the inner wall of the slot 13, and turn the first bolt 17 clockwise in sequence to make the first bolt 17 descend until the rubber block 18 presses against the steel bar, completing the clamping of the steel bar, squeezing the upper plug block 43, so that the plug block 43 squeezes the limit plate 42, and the limit plate 42 squeezes the spring 44 so that the spring 44 is compressed, so that the plug block 43 moves into the telescopic cavity 41 and separates from the socket 40, so that the plug block 43 no longer lowers the second rectangular frame 39, moves the second rectangular frame 39 downward, and squeezes the lower plug block 43 at the same time, so that the corresponding spring 44 is compressed and drives the plug block 43 into the corresponding telescopic cavity 41 until the second rectangular frame 39 moves to the corresponding position, and under the elastic action of the spring 44, the lower plug 43 is popped out and inserted into the socket 40. At this time, the second rectangular frame 39 is limited, and at the same time, the magnifying glass 31 is driven down to close to the steel bar. While observing through the magnifying glass 31, the steel bar is welded by the external welding device. When the steel bar needs to be flipped, repeat step 2 in reverse, move the magnifying glass 31 away from the steel bar position, and screw the two first nuts 12 counterclockwise until the two first nuts 12 are separated from the corresponding two positioning rods 6. At this time, rotate the positioning bar 5 so that the positioning bar 5 rotates 180° around the rotating shaft 4. At the same time, the other two positioning rods 6 are inserted into the corresponding positioning grooves 10, align the two first nuts 12 with the external thread grooves 11 on the two positioning rods 6, and tighten the first nut 12 clockwise in the external thread groove 11 so that the positioning ring 7 is close to the corresponding positioning plate 9, completing the flipping and fixing of the steel bar, and repeating step 2 for welding.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. An auxiliary fixture for pressing a steel ingot into a steel bar, characterized in that: include: A base (1), wherein the top of the base (1) is fixedly connected to a fixed plate (2), the top of the base (1) is movably provided with a movable plate (3), two positioning bars (5) are provided above the base (1), and the tops of the two positioning bars (5) are both provided with a clamping mechanism; A flip mechanism, the flip mechanism comprising four positioning rods (6), the opposite sides of the fixed plate (2) and the movable plate (3) are rotatably connected to the rotating shaft (4), the back sides of the two positioning bars (5) are respectively fixedly connected to the outer wall of the rotating shaft (4) at the corresponding position, the four positioning rods (6) are respectively fixedly connected to the top and bottom ends of the two positioning bars (5), the outer walls of the four positioning rods (6) are fixedly sleeved with positioning rings (7), the outer walls of the four positioning rods (6) are each provided with an external thread groove (11), the front and back sides of the fixed plate (2) and the movable plate (3) are each fixedly connected to the connecting plate (8), the ends of the four connecting plates (8) are each fixedly connected to the positioning plate (9), the top ends of the four positioning plates (9) are each provided with a positioning groove (10), wherein the two positioning rods (6) are movably inserted and connected to the inside of the positioning groove (10) at the corresponding position, wherein the outer walls of the two external thread grooves (11) and the position below the positioning plate (9) are threadedly sleeved with a first nut (12); An adjusting mechanism, the adjusting mechanism being arranged at the bottom end of the movable plate (3); An amplifying mechanism, the amplifying mechanism being arranged above the base (1); The clamping mechanism includes a first bolt (17), a slot (13) is provided on one side of the positioning bar (5), a first rubber pad (14) and a second rubber pad (15) are respectively attached to the bottom and one side of the inner wall of the slot (13), two first threaded holes (16) are provided on the top of the inner wall of the slot (13), the outer wall of the first threaded hole (16) is threadedly connected to the outer wall of the first bolt (17), and a rubber block (18) is attached to the bottom end of the first bolt (17); When the steel bar needs to be turned over, the two first nuts (12) are screwed counterclockwise until the two first nuts (12) are separated from the corresponding two positioning rods (6). At this time, the positioning bar (5) is rotated so that the positioning bar (5) rotates 180° around the rotating shaft (4). At the same time, the other two positioning rods (6) are inserted into the corresponding positioning grooves (10). The two first nuts (12) are aligned with the external thread grooves (11) on the two positioning rods (6), and the first nuts (12) are tightened clockwise in the external thread grooves (11) so that the positioning ring (7) is tightly attached to the corresponding positioning plate (9), completing the turning and fixing of the steel bar.

2. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 1, characterized in that: The adjusting mechanism includes a slider (20), a slide groove (19) is provided at the top of the base (1), the slider (20) is slidably connected to the inner wall of the slide groove (19), the top of the slider (20) is fixedly connected to the bottom of the movable plate (3), the inner wall of the slide groove (19) is rotatably connected to the first screw (21), a second threaded hole (22) is provided on one side of the slider (20), and the inner wall of the second threaded hole (22) is threadedly connected to the inner wall of the first screw (21).

3. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 2, characterized in that: One end of the first screw rod (21) passes through one side of the inner wall of the slide groove (19) and is fixedly connected to a turntable (23), and a rotating handle (24) is fixedly connected to the side of one side of the turntable (23).

4. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 2, characterized in that: The front and back sides of the inner wall of the slide groove (19) are both provided with limiting grooves (25), the front and back sides of the slider (20) are both fixedly connected to limiting blocks (26), and the outer wall of the limiting block (26) is slidably connected to the inner wall of the limiting groove (25).

5. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 1, characterized in that: The magnifying mechanism comprises a magnifying glass (31), a first rectangular frame (27) is provided above the base (1), a second screw (28) is fixedly connected to the bottom end of the first rectangular frame (27), a movable ring (29) is movably sleeved on the outer wall of the second screw (28), a circular frame (30) is fixedly connected to the outer wall of the movable ring (29), the magnifying glass (31) is fixedly installed inside the circular frame (30), and a second nut (32) is threadedly sleeved on the outer wall of the second screw (28) and located below the movable ring (29).

6. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 5, characterized in that: A first connecting rod (33) is movably connected to the inner wall of the first rectangular frame (27), a third threaded hole (34) is provided at the top of the first rectangular frame (27), and a second bolt (35) is threadedly connected to the inner wall of the third threaded hole (34).

7. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 6, characterized in that: A second connecting rod (36) is provided on one side of the first connecting rod (33), a dovetail groove (37) is provided on one side of the second connecting rod (36), a dovetail block (38) is slidably connected to the inner wall of the dovetail groove (37), and one side of the dovetail block (38) is fixedly connected to one side of the first connecting rod (33).

8. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 7, characterized in that: The other side of the second connecting rod (36) is fixedly connected to a second rectangular frame (39), the second rectangular frame (39) is movably sleeved on the outer wall of the fixed plate (2), a socket (40) is provided on one side of the second rectangular frame (39), and two telescopic cavities (41) are provided on one side of the fixed plate (2), the inner walls of the two telescopic cavities (41) are slidably connected to the limiting plate (42), one side of the two limiting plates (42) are fixedly connected to a spring (44), one side of the spring (44) is fixedly connected to the inner wall of the telescopic cavity (41), and the other side of the two limiting plates (42) are fixedly connected to an insert (43), the outer wall of one of the inserts (43) is movably connected to the inner wall of the socket (40).

9. A method for using the auxiliary clamp for pressing a steel ingot into a steel bar according to any one of claims 1 to 8, characterized in that: The specific steps are as follows: Step 1: Grab the rotating handle (24) and rotate the turntable (23), so that the turntable (23) drives the first screw (21) to rotate, and the rotation of the first screw (21) drives the slider (20) to move in the slide groove (19) until the two positioning bars (5) leave a suitable interval, stop rotating the turntable (23), insert the steel bar into the two slots (13) until it contacts the back of the inner wall of the slot (13), and turn the first bolt (17) clockwise in sequence to make the first bolt (17) descend until the rubber block (18) presses against the steel bar, completing the clamping of the steel bar; Step 2: squeeze the upper plug (43) so that the plug (43) squeezes the limit plate (42), and the limit plate (42) squeezes the spring (44) so ​​that the spring (44) is compressed, so that the plug (43) moves into the telescopic cavity (41) and separates from the socket (40), so that the plug (43) no longer lowers the second rectangular frame (39), and moves the second rectangular frame (39) downward. At the same time, squeeze the lower plug (43) so that the corresponding spring (44) compresses and drives the plug (43) into the corresponding telescopic cavity (41) until the second rectangular frame (39) moves to the corresponding position. Under the elastic action of the spring (44), the lower plug (43) is ejected and inserted into the socket (40). At this time, the second rectangular frame (39) is limited, and the magnifying glass (31) is driven to move down close to the steel bar. While observing through the magnifying glass (31), the steel bar is welded by the external welding device; Step 3: When the steel bar needs to be turned over, repeat step 2 in reverse, keep the magnifying glass (31) away from the position of the steel bar, and screw the two first nuts (12) counterclockwise until the two first nuts (12) are separated from the corresponding two positioning rods (6). At this time, rotate the positioning bar (5) so that the positioning bar (5) rotates 180° around the rotating shaft (4). At the same time, the other two positioning rods (6) are inserted into the corresponding positioning grooves (10). Align the two first nuts (12) with the external thread grooves (11) on the two positioning rods (6), and tighten the first nuts (12) clockwise in the external thread grooves (11) so that the positioning ring (7) is close to the corresponding positioning plate (9). The steel bar is turned over and fixed, and then repeat step 2 for welding.

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