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

Abstract

The auxiliary clamp comprises a base and a turnover mechanism, the turnover mechanism comprises four positioning rods, the four positioning rods are fixedly connected to the top ends and the bottom ends of the two positioning strips respectively, the outer walls of the four positioning rods are fixedly sleeved with positioning rings, and the positioning rings are fixedly connected to the top ends and the bottom ends of the positioning strips respectively. External thread grooves are formed in the outer walls of the four positioning rods, positioning grooves are formed in the top ends of the four positioning plates, the two positioning rods are movably connected to the interiors of the positioning grooves in the corresponding positions in a penetrating and inserting mode, and first nuts are connected to the positions, located below the positioning plates, of the outer walls of the two external thread grooves in a threaded and sleeving mode. According to the welding fixture, the rotating shafts, the positioning rods, the positioning rings, the positioning plates, the positioning grooves, the external thread grooves and the first nuts are arranged, the positioning strips are driven by the rotating shafts to rotate, the positioning rods are inserted into the corresponding positioning grooves, then the positioning rods and the positioning plates are kept fixed through positioning of the positioning rings and the first nuts, and the protection effect of the welding fixture on steel bars is improved.

Description

Technical Field

[0001] The 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 boards, after welding one side of the double-sided boards, the welding fixture needs to release the clamp on the steel bars, flip the steel bars 180°, and clamp them again. While clamping, the clamps will squeeze the steel bars again. Multiple squeezing of the steel bars will cause damage to the steel bars, reducing the protective effect of the welding fixture on the steel bars. 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-mentioned 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 arranged on the top of the base, two positioning bars arranged above the base, and a clamping mechanism arranged on the top 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 with a rotating shaft, the back sides of the two positioning bars are respectively fixedly connected with the outer walls of the rotating shaft at the corresponding positions, the four positioning rods are respectively fixedly connected with 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 with connecting plates, the ends of the four connecting plates are fixedly connected with the positioning plates, 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 strip, a first rubber pad and a second rubber pad are respectively attached to the bottom and one side of the inner wall of the slot, two first threaded holes are provided on 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 of the movable plate, the inner wall of the sliding groove is rotatably connected to 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 sliding block 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 arranged 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 with a second rectangular frame, the second rectangular frame is movably mounted on the outer wall of the fixed plate, a socket is provided on one side of the second rectangular frame, two telescopic cavities are provided on one side of the fixed plate, the inner walls of the two telescopic cavities are slidably connected with a limiting plate, one side of the two limiting plates are fixedly connected with a spring sheet, one side of the spring sheet is fixedly connected to the inner wall of the telescopic cavity, the other side of the two limiting plates are fixedly connected with 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: Grasp the rotating handle and rotate the turntable, so that the turntable drives the first screw to rotate, and 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 rotating the turntable, insert the steel bar into the two slots until it contacts the back of the inner wall of the slot, and turn the first bolt clockwise in sequence to make the first bolt go down until the rubber block contacts the steel bar, thus 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 sheet so that the spring sheet is compressed, 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, and at the same time squeezes the lower plug block so that the corresponding spring sheet is compressed and drives the plug block into the corresponding telescopic cavity, until the second rectangular frame moves to the corresponding position, and under the elastic action of the spring sheet, the lower plug block is ejected and inserted into the socket, at this time, the second rectangular frame is limited, and at the same time drives the magnifying glass to move down close to the steel bar, and the steel bar is welded by an external welding device while observing through the magnifying glass;

[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 shaft. 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 on the external thread grooves clockwise so that the positioning ring is close to the corresponding positioning plate. The steel bar is flipped and fixed, and then 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, and drives the positioning bar to rotate through the rotating shaft, so that the positioning rod is inserted into the corresponding positioning groove, and then the positioning ring and the first nut are positioned to keep the positioning rod and the positioning plate fixed, 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 rod, and the first screw rod is rotated to drive the slider to slide in the slide groove, so that the slider drives the moving plate to move, and the moving 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 It is a front cross-sectional structural schematic diagram 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 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 It 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 cross-sectional structure of the magnifying glass of the present invention.

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

[0031] In the 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 rod; 22, second threaded hole; 23, rotating shaft Plate; 24, rotating handle; 25, limiting groove; 26, limiting block; 27, first rectangular frame; 28, second screw; 29, movable ring; 30, circular 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, jack; 41, telescopic cavity; 42, limiting plate; 43, plug block; 44, spring. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0033] The present invention provides Figure 1-7 An auxiliary clamp for pressing a steel ingot into a steel bar is shown, comprising a base 1, a fixed plate 2 is fixedly connected to the top of the base 1, a movable plate 3 is movably arranged on the top of the base 1, two positioning bars 5 are arranged above the base 1, and a clamping mechanism is arranged on the top 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 with the rotating shaft 4, the back sides of the two positioning strips 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 strips 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 thread grooves 11, the front and back sides of the fixed plate 2 and the movable plate 3 are fixedly connected with connecting plates 8, the ends of the four connecting plates 8 are fixedly connected with positioning plates 9, and 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 thread grooves 11 and the lower positions of the positioning plates 9 are threadedly sleeved with first nuts 12, and the first nuts 12 are tightened on the external thread grooves 11, so that the positioning rings 7 are tightly against the positioning plates 9, so as to avoid the need to re-squeeze and clamp the steel bars when turning over the steel bars;

[0035] An adjusting mechanism, the adjusting mechanism is arranged at the bottom end of the moving plate 3;

[0036] 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 strip 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, the first rubber pad 14 and the second rubber pad 15 can protect the steel bar inserted into 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 with the outer wall of the first bolt 17, a rubber block 18 is attached to the bottom end of the first bolt 17, and the rubber block 18 is pressed against the steel bar by tightening the first bolt 17. During the welding process, only this one extrusion and clamping is required, and no extrusion and clamping is required again when flipping;

[0038] 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 a first screw 21. A second threaded hole 22 is provided at 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 driven to move by the rotation of the first screw 21. 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 slide groove 19 and is fixedly connected to a rotating disk 23. A rotating handle 24 is fixedly connected to the side of one side of the rotating disk 23. The rotating handle 24 drives the rotating disk 23 to rotate so that the first screw 21 rotates, thereby increasing the rotation force arm and making the first screw 21 more labor-saving to rotate.

[0040] The front and back sides of the inner wall of the slide groove 19 are provided with limiting grooves 25, and the front and back sides of the slider 20 are fixedly connected with limiting blocks 26, and the outer wall of the limiting block 26 is slidably connected with the inner wall of the limiting groove 25. The limiting groove 25 limits the limiting block 26 to prevent the slider 20 from rotating due to the lateral force generated by the rotation of the first screw rod 21, 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, so that the operator can align the pins of the electronic components with the welding position. A first rectangular frame 27 is arranged 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. 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] The inner wall of the first rectangular frame 27 is movably connected with a first connecting rod 33, and 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 and positioned by the second bolt 35, so that the magnifying glass 31 moves horizontally, 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 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, one side of the dovetail block 38 is fixedly connected to one side of the first connecting rod 33, and the first connecting rod 33 slides in the dovetail groove 37 through the dovetail block 38 to adjust the position of the magnifying glass 31 longitudinally, thereby further increasing the magnification range of the magnifying glass 31;

[0044] A second rectangular frame 39 is fixedly connected to the other side of the second connecting rod 36, and 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 chambers 41 are provided on one side of the fixed plate 2. The inner walls of the two telescopic chambers 41 are slidably connected to the limiting plates 42. One side of the two limiting plates 42 is fixedly connected with a spring 44, one side of the spring 44 is fixedly connected to the inner wall of the telescopic chamber 41, and the other side of the two limiting plates 42 is fixedly connected with an insert block 43. The outer wall of one insert block 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 by 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 rotating disk 23, so that the rotating disk 23 drives the first screw rod 21 to rotate, and the rotation of the first screw rod 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 rotating disk 23, insert the steel bar into the two slots 13, until it contacts the back of the inner wall of the slot 13, turn the first bolt 17 clockwise in sequence, so that the first bolt 17 descends until the rubber block 18 presses against the steel bar to complete the clamping of the steel bar, squeeze the upper plug block 43, so that the plug block 43 squeezes the limit plate 42, and the limit plate 42 squeezes the spring leaf 44 so that the spring leaf 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 leaf 44 is compressed to drive 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 sheet 44, the lower plug block 43 is ejected 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 to move down close to the steel bar. The steel bar is welded by an external welding device while observing through the magnifying glass 31. When the steel bar needs to be flipped, step two is repeated in reverse, the magnifying glass 31 is kept away from the position of the steel bar, and the two first nuts 12 are turned 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 180° around the rotating shaft 4, and 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 close to the corresponding positioning plate 9, the steel bar is flipped and fixed, and then step two is repeated 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, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to 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 protection scope 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), the top of the base (1) being fixedly connected to a fixed plate (2), the top of the base (1) being movably provided with a movable plate (3), two positioning bars (5) being provided above the base (1), and the tops of the two positioning bars (5) being provided with clamping mechanisms; The flip mechanism comprises four positioning rods (6), the opposite sides of the fixed plate (2) and the movable plate (3) are rotatably connected with a rotating shaft (4), the back sides of the two positioning strips (5) are respectively fixedly connected with 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 strips (5), the outer walls of the four positioning rods (6) are fixedly sleeved with positioning rings (7), and the outer walls of the four positioning rods (6) are provided with external thread grooves (11 ), the front and back sides of the fixed plate (2) and the movable plate (3) are fixedly connected with connecting plates (8), the ends of the four connecting plates (8) are fixedly connected with positioning plates (9), the tops of the four positioning plates (9) are provided with positioning grooves (10), wherein two positioning rods (6) are movably inserted and connected to the inside of the positioning grooves (10) at corresponding positions, wherein the outer walls of the two external thread grooves (11) and the positions below the positioning plates (9) are threadedly sleeved with first nuts (12); An adjusting mechanism, wherein the adjusting mechanism is arranged at the bottom end of the movable plate (3); An amplifying mechanism is arranged above the base (1).

2. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 1, characterized in that: The clamping mechanism comprises a first bolt (17), a slot (13) is provided on one side of the positioning strip (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).

3. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 1, characterized in that: The adjusting mechanism comprises 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 a first screw rod (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 rod (21).

4. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 3, 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 rotating disk (23); a rotating handle (24) is fixedly connected to the side of one side of the rotating disk (23).

5. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 3, characterized in that: The front and back sides of the inner wall of the slide groove (19) are provided with limiting grooves (25), the front and back sides of the slide block (20) are 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).

6. 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 arranged above the base (1), a second screw rod (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 rod (28), a circular frame (30) is fixedly connected on 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 rod (28) and located below the movable ring (29).

7. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 6, characterized in that: A first connecting rod (33) is movably inserted into 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).

8. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 7, 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).

9. The auxiliary fixture for pressing a steel ingot into a steel bar according to claim 8, 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), 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 a limiting plate (42), one side of the two limiting plates (42) are fixedly connected to a spring leaf (44), one side of the spring leaf (44) is fixedly connected to the inner wall of the telescopic cavity (41), the other side of the two limiting plates (42) are fixedly connected to an insert block (43), the outer wall of one of the insert blocks (43) is movably connected to the inner wall of the socket (40).

10. A method for using an auxiliary clamp for pressing a steel ingot into a steel bar, characterized in that: The specific usage steps are as follows: Step 1: Grasp the rotating handle (24) and rotate the rotating disk (23), so that the rotating disk (23) drives the first screw rod (21) to rotate, and the rotation of the first screw rod (21) drives the slider (20) to move in the sliding groove (19) until the two positioning strips (5) leave a suitable interval, stop rotating the rotating 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) abuts against the steel bar, thereby completing the clamping of the steel bar; Step 2: squeeze the upper plug block (43) so that the plug block (43) squeezes the limiting plate (42), and the limiting plate (42) squeezes the spring sheet (44) so ​​that the spring sheet (44) is compressed, so that the plug block (43) moves into the telescopic cavity (41) and separates from the insertion hole (40), so that the plug block (43) no longer lowers the second rectangular frame (39), and moves the second rectangular frame (39) downward, and at the same time squeezes the lower plug block (43) so that the corresponding spring sheet (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, under the elastic action of the spring sheet (44), the lower plug block (43) is ejected and inserted into the insertion hole (40), at this time, the second rectangular frame (39) is limited, and at the same time drives the magnifying glass (31) to move down to the vicinity of the steel bar, and the steel bar is welded by an external welding device while observing through the magnifying glass (31); Step 3: When the steel bar needs to be flipped, repeat step 2 in reverse, keep the magnifying glass (31) away from the position of the steel bar, and turn 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). 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 close to the corresponding positioning plate (9). The steel bar is flipped and fixed, and then repeat step 2 for welding.

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