A steel bar welding fixture

Abstract

The present invention relates to the technical field of steel bar welding, and specifically discloses a steel bar welding clamp. The steel bar welding clamp of the present invention comprises a clamp part 1 and a clamp part 2. The clamp part 2 is provided with a control rod, and a positioning rod and a linkage part are arranged on the clamp part 2. The control rod is slidably arranged in the positioning rod, and a sliding groove matched with the control rod is provided on the clamp part 1. When the control rod moves into the sliding groove, the positioning rod abuts against the clamp part 1. A pulling member is arranged on the clamp part 1, and the pulling member is connected to the control rod. Baffles are respectively arranged on the clamp part 1 and the clamp part 2. The bent ends of two steel bars are in the same plane after abutting against the baffles. A rotating sleeve is rotatably arranged in the clamp part 2. The rotating sleeve is arranged on the outside of the steel bar and is used to drive the steel bar to rotate until it abuts against the baffle. The linkage part is respectively connected to the control rod and the rotating sleeve. The movement of the control rod drives the rotating sleeve to rotate through the linkage part, which has the effect of improving the welding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of steel bar welding, and in particular to a steel bar welding clamp. Background Art

[0002] Lap welding is a welding method for steel bars. During lap welding, the axes of the two steel bars should be on the same straight line. This ensures the strength and stability of the welded joint and avoids welding defects or structural safety problems caused by misalignment of the steel bars.

[0003] The patent document with announcement number CN115846961B discloses an automatic welding device for overlapping steel bars, including a clamping assembly tool and an automatic welding device, including a base, a clamp and a clamping adjustment mechanism, the clamping adjustment mechanism is respectively located on both sides of the base, and is used to adjustably clamp the steel bars, the clamp is arranged in the middle of the base, and is used to fix the steel bars after the butt joint is completed; the automatic welding equipment includes an automatic welding track and an automatic welding trolley moving on the automatic welding track, the automatic welding track is arranged above the clamping assembly tool, and the automatic welding trolley is used to clamp the welding gun to move above the steel bars to complete the welding of the overlapping steel bars.

[0004] However, the following problems still exist in this scheme. When overlapping the steel bars, it is necessary to pre-bend the overlapping ends of the steel bars first, and then weld the bends of the two steel bars together to ensure that the axes of the two overlapping steel bars are in the same straight line. However, when the bends of the two steel bars are not in the same plane at the casting site, it is necessary to manually rotate the steel bars to adjust the bent ends of the steel bars, and the prior art requires constant adjustment of the fastening screws during positioning. The adjustment process is cumbersome and affects the welding efficiency. In addition, when overlapping the steel bars during construction, the steel bars are usually overlapped to one end of a steel bar that has been fixed. Under this working condition, it is inconvenient to position the steel bars, which also affects the welding efficiency. Summary of the invention

[0005] The invention provides a steel bar welding clamp, aiming to solve the problem in the related art that the adjustment of the bending part of the steel bar is complicated and affects the welding efficiency.

[0006] The steel bar welding clamp of the present invention comprises a clamp part 1 and a clamp part 2. A control rod is provided on the clamp part 2 to slide along the direction of the clamp part 1. A positioning rod and a linkage part are provided on the clamp part 2. The control rod penetrates the positioning rod and is slidably arranged in the positioning rod. A sliding groove cooperating with the control rod is provided on the clamp part 1. When the control rod moves into the sliding groove, the positioning rod abuts against the clamp part 1. A pulling member is provided on the clamp part 1. The pulling member is connected to the control rod to drive the control rod to move. Baffles are respectively provided on the clamp part 1 and the clamp part 2. The bent ends of the two steel bars are in the same plane after abutting against the baffles. A rotating sleeve is rotatably provided in the clamp part 2. The rotating sleeve is arranged on the outside of the steel bar to drive the steel bar to rotate until it abuts against the baffle. The linkage part is respectively connected to the control rod and the rotating sleeve. The movement of the control rod drives the rotating sleeve to rotate through the linkage part.

[0007] The effect is that clamp one clamps the fixed steel bar, and clamp two clamps the movable steel bar. After clamping the steel bar, the positioning rod is abutted against clamp one, and then the pulling member drives the control rod to move into the slide slot to fix the two steel bars in the same straight line. The control rod continues to move and drives the rotating sleeve to rotate through the linkage member. The rotating sleeve drives the bent portion of the steel bar to rotate until it abuts against the baffle, so that the two bent portions on the same plane can be welded, thereby improving the welding efficiency of the steel bars.

[0008] Preferably, the pulling member includes a driving member, a winding wheel and a pull rope. The winding wheel is arranged at the output end of the driving member. One end of the pull rope is connected to the winding wheel, and the other end is arranged in a slide groove and connected to the control rod. When the winding wheel rotates and winds the pull rope, it drives the control rod to move.

[0009] The effect is that the driving member drives the winding wheel to rotate, the winding wheel rotates to wind up the pull rope, the pull rope pulls the control rod, and drives the control rod to move.

[0010] Preferably, the second clamp includes a second mounting plate, a slider, a pull frame and a second elastic member. Two sliders and two pull frames are provided. The two sliders slide toward each other in the mounting plate. The rotating sleeve includes two clamping sleeves with semicircular cross-sections. The two clamping sleeves correspond to the two sliders one by one, and the clamping sleeves are rotatably arranged in the slider. The second elastic member is respectively connected to the second mounting plate and the slider. The second elastic member is used to drive the slider to slide in the direction toward the other slider. The pull frame is connected to the slider to adjust the position of the slider.

[0011] The effect is that the slider is moved by pulling the frame to place the steel bar between the two sliders, and then the pull frame is released, and the slider moves to the initial position to clamp the steel bar under the action of the second elastic member.

[0012] Preferably, the linkage part includes an intermediate rod, a guide rod and a gear. The intermediate rod is rotatably arranged on the slider, and is arranged along the sliding direction of the control rod. Tooth grooves are provided on both sleeves, and the gears are engaged with the tooth grooves. The guide rod is connected to the control rod. A guide groove is provided on the side of the intermediate rod along its length direction. The guide groove is arranged in a spiral shape around the intermediate rod, and the guide rod drives the intermediate rod to rotate when sliding in the guide groove.

[0013] The effect is that the control rod drives the guide rod to slide in the guide groove, drives the intermediate rod to rotate, and the rotation of the intermediate rod drives the sleeve to rotate through the gears and tooth grooves, thereby driving the steel bar to rotate.

[0014] Preferably, the slider is slidably matched with the middle rod, a connecting rod is provided at the end of the control rod away from the clamp one, a push rod is provided on the connecting rod, the push rod is arranged in parallel with the control rod, the slider is slidably arranged in the direction of the clamp one in the mounting plate two, the slider is slidably matched with the pull frame, an intermediate groove is opened on the intermediate rod along its length direction, the intermediate groove is connected with the guide groove, the guide rod slides into the intermediate groove through the guide groove, and the push rod abuts against the slider when the guide rod slides into the intermediate groove.

[0015] The effect is that after the bent portion of the steel bar abuts against the baffle, the push rod drives the slider to move, and the slider drives the steel bar to move toward another steel bar, so that the bent portions of the two steel bars are close to each other for subsequent welding.

[0016] Preferably, the gear is rotatably arranged on the intermediate rod, and a torsion spring is arranged between the gear and the intermediate rod for connecting the two.

[0017] The effect is that after the bent portion of the steel bar abuts against the baffle, the gear stops rotating, and at the same time the gear rotates relative to the middle rod to determine whether the bent portion abuts against the baffle, thereby improving the adjustment efficiency.

[0018] Preferably, a spring member three is provided in the mounting plate two, and the spring member three is connected to the slider to drive the slider to slide in a direction away from the clamp member one. The middle groove is connected with both ends of the guide groove, a guide block one is provided at the end of the guide groove close to the clamp member one, and a slope one is provided on the side of the guide block one close to the guide groove, a guide block two is provided at the end of the middle groove away from the clamp member one, and a slope two is provided on the side of the guide block two close to the middle groove, the guide rod passes through the guide block one and enters the guide groove, a spring is provided between the slider and the ferrule to drive the ferrule to rotate to the initial position, and a spring member four is provided on the outside of the control rod, and the spring member four is connected to the mounting plate two to drive the control rod to move in a direction away from the clamp member one.

[0019] The effect is that after welding is completed, the clamping sleeve is separated from the steel bar, the spring member three drives the slider back to the initial position, the spring member four drives the control rod to the initial position, and the spring drives the clamping sleeve to the initial position so as to adjust the position of the steel bar again.

[0020] Preferably, a clamping bolt and a pressure plate are provided on the clamping sleeve, the clamping bolt and the clamping sleeve are threadedly matched, the pressure plate and the clamping bolt are connected close to one end of the steel bar, and the pressure plate abuts against the side of the steel bar.

[0021] The effect is that rotating the tightening bolt drives the pressure plate to move and separate from the steel bar, releasing the restriction on the steel bar so that the slider returns to the initial position. At the same time, the initial position of the pressure plate can be adjusted to weld steel bars of different specifications.

[0022] Preferably, the clamping member 1 includes a mounting plate 1, a pull rod, a clamping block and an elastic member 1, a slide groove is provided in the mounting plate, two clamping blocks and two pull rods are provided, the two pull rods are arranged in a one-to-one correspondence with the two clamping blocks, the pull rod is connected to the clamping blocks, the two clamping blocks slide in directions toward each other on the mounting plate 1 for clamping the steel bars, the elastic member 1 is respectively connected to the clamping block and the mounting plate 1, and the elastic member 1 is used to drive the clamping block to move in a direction toward the steel bars.

[0023] The effect is that the clamping block is moved by the pull rod and the elastic member 1 is compressed at the same time, the two clamping blocks are placed outside the steel bar, the pull rod is loosened, and the clamping block moves under the action of the elastic member 1 to abut against the steel bar to clamp the steel bar.

[0024] Preferably, one end of the guide rod close to the guide groove is clamped in the guide groove, and the guide rod passes through the control rod and is slidably arranged in the control rod.

[0025] The effect is that when the two sliders slide away from each other to place the steel bars, the guide rod slides on the control rod, reducing the phenomenon of the guide rod interfering with the movement of the sliders.

[0026] Beneficial effects:

[0027] The present invention adjusts the position of the control rod, and after the control rod cooperates with the slide groove, the two steel bars are fixed on the same straight line. The control rod continues to move to drive the steel bars to rotate, and the clamping sleeve is driven to rotate through the guide rod, the middle rod and the gear. The rotation of the clamping sleeve drives the steel bars to rotate until the bent portion of the steel bar rotates to abut against the baffle. At this time, the bent portions of the two steel bars are in the same plane, so that the steel bars can be quickly adjusted and positioned, thereby improving the welding efficiency of the steel bars. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a partial exploded schematic diagram of the clamp 1 and the steel bar in the present invention.

[0029] Figure 2 It is a partial exploded schematic diagram of the mounting plate 1 and the clamping block in the present invention.

[0030] Figure 3 It is a structural schematic diagram of the pulling member in the present invention.

[0031] Figure 4 It is a structural schematic diagram of the transfer sleeve in the present invention.

[0032] Figure 5 It is a partial exploded schematic diagram of the slider in the present invention.

[0033] Figure 6 It is a structural schematic diagram of the control rod in the present invention.

[0034] Figure 7 It is a partial exploded schematic diagram of the guide rod and the control rod in the present invention.

[0035] Figure 8 It is a partially cutaway schematic diagram of the ferrule in the present invention.

[0036] Reference numerals:

[0037] 01. Steel bar; 02. Bending part; 1. Clamp one; 11. Mounting plate one; 111. Slide; 112. Baffle; 12. Pull rod; 13. Clamp block; 14. Elastic part one; 2. Clamp two; 21. Mounting plate two; 22. Sliding block; 221. Elastic part three; 23. Pull frame; 24. Elastic part two; 3. Positioning rod; 4. Control rod; 41. Elastic part four; 5. Rotating sleeve; 51. Card sleeve; 511. Tooth groove; 512. Tightening bolt; 513. Pressing plate; 6. Pulling member; 61. Driving member; 62. Winding wheel; 63. Pull rope; 7. Linkage member; 71. Middle rod; 711. Guide groove; 712. Middle groove; 72. Guide rod; 73. Gear; 8. Connecting rod; 81. Push rod; 9. Guide block one; 91. Guide block two. DETAILED DESCRIPTION

[0038] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0039] like Figures 1 to 8 As shown, the steel bar 01 welding clamp of the present invention includes a clamp 1 and a clamp 2, wherein the clamp 1 and the clamp 2 are respectively used to clamp two steel bars 01 to be welded, and a positioning rod 3 is provided on the side of the clamp 2 close to the clamp 1, and the positioning rod 3 is arranged toward the direction of the clamp 1, and a control rod 4 is provided on the clamp 2, and the control rod 4 penetrates the positioning rod 3 and is slidably arranged in the positioning rod 3, and a slide groove 111 is opened on the clamp 1, and when the control rod 4 slides into the slide groove 111, the end of the positioning rod 3 abuts against the side of the clamp 1, and at the same time, the two steel bars 01 are in the same straight line, and the bending portions 02 of the two steel bars 01 are between the clamp 1 and the clamp 2, and then the bending portions 02 of the two steel bars 01 are welded.

[0040] Reference Figure 1 and Figure 2The clamp 1 includes a mounting plate 11, a pull rod 12, a clamp block 13 and an elastic member 14. The slide groove 111 is provided in the mounting plate. Two clamp blocks 13 and two pull rods 12 are provided on both sides of the steel bar 01. The two pull rods 12 are provided in a one-to-one correspondence with the two clamp blocks 13. The pull rods 12 are connected to the clamp blocks 13. The two clamp blocks 13 slide toward each other on the mounting plate 11. The elastic member 14 can be provided as a spring. The spring is respectively connected to the mounting plate 11 and the clamp block 13. The elastic member 14 is used to drive the clamp block 13 to move in the direction toward the steel bar 01. The clamp block 13 is pulled by the pull rod 12 to move, so that the two clamp blocks 13 are separated, and the elastic member 14 is compressed at the same time, and the steel bar 01 is placed between the two clamp blocks 13. Then the pull rod 12 is released, and the clamp block 13 moves to the initial position under the action of the elastic member 14, and the steel bar 01 is clamped at the same time.

[0041] Reference Figure 1 and Figure 2 A baffle 112 is provided on both the clamp 1 and the clamp 2, and the baffle 112 is provided between the clamp 1 and the clamp 2. The two baffles 112 are in the same plane. When the steel bar 01 is rotated to drive the bent portion 02 of the steel bar 01 to abut against the baffle 112, the bent portions 02 of the two steel bars 01 are in the same plane, that is, the bent portions 02 of the two steel bars 01 correspond to each other at this time, so as to weld the bent portions 02 of the steel bars 01.

[0042] Reference Figures 1 to 4 A rotating sleeve 5 is rotatably arranged in the clamp 2, and the rotating sleeve 5 is sleeved on the outside of the steel bar 01. The rotating sleeve 5 rotates to drive the steel bar 01 to rotate accordingly. A pulling member 6 is arranged on the clamp 1, and the pulling member 6 is connected to the control rod 4. A linkage member 7 is arranged on the clamp 2, and the linkage member 7 is connected to the rotating sleeve 5. Before welding, clamp the clamp 1 on one of the steel bars 01, and at the same time, the bent portion 02 of the steel bar 01 is abutted against the baffle 112, and then clamp the clamp 2 on the other steel bar 01, and then abut the positioning rod 3 against the side of the clamp 1, and the pulling member 6 drives the control rod 4 to move into the slide groove 111. After the control rod 4 cooperates with the slide groove 111, the two steel bars 01 are fixed on the same straight line, and then the pulling member 6 drives the control rod 4 to continue to move, and the control rod 4 moves through the linkage member 7 to drive the rotating sleeve 5 to rotate until the rotating sleeve 5 drives the bent portion 02 of the steel bar 01 to rotate and abut against the baffle 112. At this time, the bent portions 02 of the two steel bars 01 correspond to each other, so as to carry out subsequent welding and improve welding efficiency.

[0043] Reference Figure 1 and Figure 3The pulling member 6 includes a driving member 61, a reel 62 and a pull rope 63. The driving member 61 can be set as a motor. The reel 62 is connected to the output end of the driving member 61. One end of the pull rope 63 is connected to the reel 62, and the other end passes through the slide slot 111 and is connected to the control rod 4. The driving member 61 drives the reel 62 to rotate, and the reel 62 rotates to reel the pull rope 63. At the same time, the pull rope 63 pulls the control rod 4 to drive the control rod 4 to move, and the position of the control rod 4 is adjusted.

[0044] Reference Figures 3 to 7 The second clamp 2 includes a second mounting plate 21, a slider 22, a pull frame 23 and a second elastic member 24. Two sliders 22 and two pull frames 23 are provided. The two sliders 22 slide in the second mounting plate 21 along the directions of each other. The pull frame 23 is connected to the slider 22. The second elastic member 24 can be set as a spring. One end of the spring is connected to the second mounting plate 21, and the other end is connected to the slider 22. The second elastic member 24 is used to drive the slider 22 to slide in the direction of the other slider 22. The rotating sleeve 5 includes two ferrules 51. The cross section of the ferrule 51 is a semicircular ring. The two ferrules 51 are respectively arranged on the two sliders 22, and the ferrules 51 are rotatably arranged in the slider 22. When clamping the steel bar 01, the two sliders 22 are driven to move by the pull frame 23, and the slider 22 drives the clamping sleeve 51 to move, so that the steel bar 01 is placed between the two clamping sleeves 51, and then the pull frame 23 is released, and the elastic member 24 drives the clamping sleeve 51 to move to abut against the steel bar 01 through the slider 22, and the two clamping sleeves 51 are surrounded to form a complete circular ring shape, so that the rotating sleeve 5 can rotate to drive the steel bar 01 to rotate.

[0045] Reference Figures 3 to 7 The linkage member 7 includes an intermediate rod 71, a guide rod 72 and a gear 73. The intermediate rod 71 is rotatably arranged on the slider 22, and the intermediate rod 71 is arranged along the sliding direction of the control rod 4. Tooth grooves 511 are provided on both sleeves 51, and the tooth grooves 511 are arranged on the outer side of the sleeve 51. The gear 73 meshes with the tooth grooves 511. The guide rod 72 is connected to the control rod 4, and the guide rod 72 is arranged perpendicular to the control rod 4. A guide groove 711 is provided on the side of the intermediate rod 71, and the guide groove 711 is arranged along the length direction of the intermediate rod 71, and the guide groove 711 is arranged in a spiral shape around the intermediate rod 71, and the guide rod 72 is slidably arranged in the guide groove 711.

[0046] Reference Figures 3 to 7 The gear 73 is rotatably arranged on the intermediate rod 71, and a torsion spring is arranged between the gear 73 and the intermediate rod 71, and the two ends of the torsion spring are respectively connected to the gear 73 and the intermediate rod 71. The intermediate rod 71 drives the gear 73 to rotate through the torsion spring, and drives the steel bar 01 to rotate. After the bending portion 02 of the steel bar 01 rotates to abut against the baffle 112, the gear 73 stops rotating, and the intermediate rod 71 stops rotating relative to the gear 73 and twists the torsion spring. By setting the torsion spring, the deformation of the bending portion 02 of the steel bar 01 is reduced, and it is convenient to judge whether the steel bar 01 is rotated to the specified position.

[0047] The control rod 4 moves to drive the guide rod 72 to move, and the guide rod 72 moves to cooperate with different positions in the guide groove 711 and drives the intermediate rod 71 to rotate, and the rotation of the intermediate rod 71 drives the clamping sleeve 51 to rotate, and then drives the steel bar 01 to rotate. In this embodiment, when the clamping sleeve 51 rotates, the two clamping sleeves 51 surround and form a complete ring, so that the clamping sleeve 51 can rotate stably.

[0048] Reference Figures 3 to 7 The end of the guide rod 72 close to the guide groove 711 is stuck in the guide groove 711 to prevent the guide rod 72 from being separated from the guide groove 711. The guide rod 72 penetrates the control rod 4 and is slidably arranged in the control rod 4. When the slider 22 is moved by the pull frame 23, the intermediate rod 71 and the guide rod 72 move accordingly, and the guide rod 72 moves relative to the control rod 4, thereby reducing the interference of the guide rod 72 with the two sliders 22 sliding in directions away from each other.

[0049] Reference Figures 3 to 7 The slider 22 is slidably matched with the middle rod 71, and the slider 22 slides on the middle rod 71 along its length direction. The end of the control rod 4 away from the clamping piece 1 is provided with a connecting rod 8, and the connecting rod 8 is provided with a push rod 81, and the push rod 81 is parallel to the control rod 4. The slider 22 is slidably arranged in the mounting plate 21 toward the direction of the clamping piece 1, that is, the slider 22 is slidably matched with the pull frame 23, and the slider 22 can move relative to the pull frame 23. The middle rod 71 is provided with a middle groove 712, which is arranged along the length direction of the middle rod 71, and the middle groove 712 is connected with the guide groove 711.

[0050] Reference Figures 3 to 7 After driving the steel bar 01 to rotate, the guide rod 72 continues to move into the middle groove 712. At this time, the push rod 81 abuts against the slider 22, the control rod 4 continues to move, the guide rod 72 moves in the middle groove 712, the push rod 81 pushes the slider 22 to move, and the movement of the slider 22 drives the steel bar 01 to move toward the other steel bar 01, so that the bent portions 02 of the two steel bars 01 are close to each other after rotating to a plane, so as to facilitate subsequent welding.

[0051] Reference Figures 3 to 7A spring member 3 221 is provided in the second mounting plate 21. The spring member 3 221 can be provided as a spring. The spring member 3 221 is connected to the second mounting plate 21 and the slider 22 respectively. The spring member 24 is used to drive the slider 22 to slide in a direction away from the clamp 1. The guide groove 711 is provided around the middle rod 71 for one circle, that is, the two ends of the guide groove 711 are provided in the same direction along the length direction of the middle rod 71. The middle groove 712 is connected to the two ends of the guide groove 711. The guide groove 711 is close to the clamp. A guide block 9 is provided at one end of the clamp 1, and a slope is provided on the side of the guide block 9 close to the guide groove 711. A guide block 2 91 is provided at the end of the middle groove 712 away from the clamp 1, and a slope is provided on the side of the guide block 2 91 close to the middle groove 712. A spring is provided between the slider 22 and the sleeve 51 to drive the sleeve 51 to rotate to the initial position. An elastic member 41 is provided on the outside of the control rod 4. The elastic member 41 can be set as a spring, and the elastic member 41 is connected to the mounting plate 21.

[0052] Reference Figures 3 to 8 , guide block 1 9 and guide block 2 91 are provided, so that the guide rod 72 slides in the guide groove 711 and the middle groove 712 in a predetermined direction, that is, the guide rod 72 can enter the middle groove 712 through the inclined surface, and when the slider 22 moves in the direction of the clamp 1, the elastic member 3 221 and the elastic member 4 41 are both subjected to force and deformed accordingly. After the welding is completed, the rotating sleeve 5 is separated from the steel bar 01, and the slider 22 and the control rod 4 move to the initial position under the action of the elastic member 3 221 and the elastic member 4 41, and the clamping sleeve 51 is rotated to the initial position under the action of the spring, so as to position and weld the steel bar 01 again. A tightening bolt 512 and a pressing plate 513 are provided on the clamping sleeve 51, and the tightening bolt 512 and the clamping sleeve 51 are threadedly matched, and the pressing plate 513 is provided at one end of the tightening bolt 512 close to the inside of the clamping sleeve 51. After the welding is completed, the tightening bolt 512 is rotated to drive the pressing plate 513 to separate from the steel bar 01, and the restriction on the steel bar 01 is released, so that the slider 22 slides to the initial position. At the same time, in the initial state, the initial position of the pressing plate 513 can be adjusted so as to clamp and position the steel bars 01 of different specifications.

[0053] The implementation principle of the present invention is as follows: the clamp 1 is clamped on the fixed steel bar 01, and the baffle 112 on the clamp 1 is placed against the bent portion 02 of the steel bar 01, and the clamp 2 is clamped on the movable steel bar 01 to be overlapped, and the winding wheel 62 winds up the pull rope 63 to drive the control rod 4 to move, and the control rod 4 moves to cooperate with the slide groove 111 to fix the two steel bars 01 on the same straight line, and at the same time, the guide rod 72 is driven to slide in the guide groove 711, thereby driving the sleeve 51 to rotate until the bent portion 02 of the steel bar 01 is driven to abut against the baffle 112, and at this time, the bent portions 02 of the two steel bars 01 are in the same plane. In the process, it is only necessary to adjust the position of the control rod 4, so that after the two steel bars 01 are fixed on the same straight line, the steel bars 01 can be driven to rotate, and the bent portion 02 of the steel bars 01 can be adjusted to facilitate welding and improve welding efficiency.

[0054] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. A steel bar welding fixture, comprising a first clamp and a second clamp, characterized in that: A control rod is provided on the clamp member 2 to slide in the direction of the clamp member 1, a positioning rod and a linkage member are provided on the clamp member 2, the control rod penetrates the positioning rod and is slidably provided in the positioning rod, a sliding groove cooperating with the control rod is provided on the clamp member 1, when the control rod moves into the sliding groove, the positioning rod abuts against the clamp member 1, a pulling member is provided on the clamp member 1, the pulling member is connected with the control rod to drive the control rod to move, baffles are provided on the clamp member 1 and the clamp member 2 respectively, the bent ends of the two steel bars are in the same plane after abutting against the baffles, a rotating sleeve is rotatably provided in the clamp member 2, the rotating sleeve is provided on the outside of the steel bar to drive the steel bar to rotate until it abuts against the baffles, the linkage members are respectively connected with the control rod and the rotating sleeve, and the movement of the control rod drives the rotating sleeve to rotate through the linkage member; The second clamping member includes a second mounting plate, a slider, a pull frame and a second elastic member. Two sliders and two pull frames are provided. The two sliders slide toward each other in the mounting plate. The rotating sleeve includes two clamping sleeves with semicircular cross-sections. The two clamping sleeves correspond to the two sliders one by one. The clamping sleeves are rotatably arranged in the slider. The second elastic member is respectively connected to the second mounting plate and the slider. The second elastic member is used to drive the slider to slide in the direction toward the other slider. The pull frame is connected to the slider to adjust the position of the slider. The linkage part includes an intermediate rod, a guide rod and a gear. The intermediate rod is rotatably arranged on the slider. The intermediate rod is arranged along the sliding direction of the control rod. Tooth grooves are provided on both sleeves. The gears are meshed with the tooth grooves. The guide rod is connected to the control rod. A guide groove is provided on the side of the intermediate rod along its length direction. The guide groove is arranged in a spiral shape around the intermediate rod. When the guide rod slides in the guide groove, it drives the intermediate rod to rotate.

2. The steel bar welding fixture according to claim 1, characterized in that: The pulling member includes a driving member, a winding wheel and a pull rope. The winding wheel is arranged at the output end of the driving member. One end of the pull rope is connected to the winding wheel, and the other end is arranged in a slide groove and connected to the control rod. The winding wheel rotates to wind the pull rope to drive the control rod to move.

3. The steel bar welding fixture according to claim 1, characterized in that: The slider is slidably matched with the middle rod, a connecting rod is provided at the end of the control rod away from the clamp one, a push rod is provided on the connecting rod, the push rod is arranged in parallel with the control rod, the slider is slidably arranged in the direction of the clamp one in the mounting plate two, the slider is slidably matched with the pull frame, an intermediate groove is opened on the middle rod along its length direction, the intermediate groove is connected with the guide groove, the guide rod slides into the intermediate groove through the guide groove, and the push rod abuts against the slider when the guide rod slides into the intermediate groove.

4. The steel bar welding fixture according to claim 3, characterized in that: The gear is rotatably arranged on the intermediate rod, and a torsion spring for connecting the gear and the intermediate rod is arranged between the gear and the intermediate rod.

5. The steel bar welding fixture according to claim 3, characterized in that: A spring member three is arranged in the mounting plate two, and the spring member three is connected to the slider to drive the slider to slide in a direction away from the clamp member one. The middle groove is connected with both ends of the guide groove, a guide block one is arranged at the end of the guide groove close to the clamp member one, and a slope is provided on the side of the guide block one close to the guide groove, a guide block two is arranged at the end of the middle groove away from the clamp member one, and a slope is provided on the side of the guide block two close to the middle groove, the guide rod passes through the guide block one and enters the guide groove, a spring is arranged between the slider and the ferrule to drive the ferrule to rotate to the initial position, and a spring member four is arranged on the outside of the control rod, and the spring member four is connected to the mounting plate two to drive the control rod to move in a direction away from the clamp member one.

6. The steel bar welding fixture according to claim 5, characterized in that: A clamping bolt and a pressing plate are arranged on the clamping sleeve, the clamping bolt and the clamping sleeve are threadedly matched, the pressing plate and the clamping bolt are connected close to one end of the steel bar, and the pressing plate is in contact with the side of the steel bar.

7. The steel bar welding fixture according to claim 1, characterized in that: The clamping member 1 includes a mounting plate 1, a pull rod, a clamping block and an elastic member 1. A slide groove is provided in the mounting plate. Two clamping blocks and two pull rods are provided. The two pull rods are provided in a one-to-one correspondence with the two clamping blocks. The pull rod is connected to the clamping blocks. The two clamping blocks slide along each other's directions on the mounting plate 1 to clamp the steel bars. The elastic member 1 is respectively connected to the clamping block and the mounting plate 1. The elastic member 1 is used to drive the clamping block to move in the direction toward the steel bars.

8. The steel bar welding fixture according to claim 1, characterized in that: One end of the guide rod close to the guide groove is clamped in the guide groove, and the guide rod penetrates the control rod and is slidably arranged in the control rod.

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