Welding positioning tool for frame tie rod support

Abstract

The utility model relates to a welding positioning tool for a frame tie rod support, and effectively solves the problems that the fixing effect of an existing tool clamp on a frame tie rod is not good, inaccurate welding is easily caused, and the production quality of the tie rod support is affected. According to the welding positioning tool for the frame tie rod support, the two radial sides of a tie rod can be clamped through the sliding clamping mechanism, the pressing mechanisms are driven by the electric push rod to press downwards, the pressing mechanisms on the two axial sides of the tie rod can press the tie rod from the upper portion, and therefore the tie rod can be stably fixed to the supporting frame; the distance between a welding workpiece and the end of a tie rod is adjusted through the end adjusting mechanisms on the two sides, and the supporting and fixing mechanism can move transversely and vertically, so that the specific position of the workpiece can be adjusted, the welding workpiece can be accurately positioned at the position needing to be welded conveniently, the welding precision is improved, and the production quality of a frame tie rod support is improved; and meanwhile, the device is also suitable for accurately welding tie rod brackets of different models.

Description

Technical Field

[0001] This utility model belongs to the technical field of vehicle frame welding devices, specifically relating to a welding positioning fixture for a vehicle frame tie rod bracket. Background Technology

[0002] With the development of the times, automobiles have emerged and become an important means of transportation. Automobiles are intricately and complexly composed of countless parts. The tie rod is one of the main components of the automobile's steering system, connecting the left and right steering arms. It serves two purposes: synchronizing the two wheels and adjusting the toe-in. During the manufacturing process, automobile tie rod brackets require welding. To ensure stability during welding, tooling fixtures are typically used to clamp the tie rods for various welding requirements.

[0003] In the existing tooling fixtures, after the cross braces of the frame are fixed, the external force applied to the cross braces can easily cause them to shift or slide, which cannot guarantee that the welding position of the cross brace bracket remains fixed. This will affect the welding of the cross braces of the frame and easily cause inaccurate welding position, thus affecting the production quality of the cross brace bracket. Utility Model Content

[0004] In view of the above situation and to overcome the defects of the prior art, this utility model provides a welding positioning fixture for a vehicle frame tie rod bracket. This welding positioning fixture for a vehicle frame tie rod bracket can adjust the specific position of the workpiece, making it easy to accurately fix the workpiece to the part to be welded, ensuring welding accuracy, thereby improving the production quality of the vehicle frame tie rod bracket. It is also suitable for precise welding of tie rod brackets of different models.

[0005] A welding positioning fixture for a vehicle frame tie rod bracket includes a base plate and a support frame. The support frame is fixedly connected to the middle of the upper surface of the base plate and has a transverse drive mechanism inside. A sliding clamping mechanism is slidably connected to the upper surface of the support frame and is drively connected to the transverse drive mechanism. Side plates are fixedly installed on both sides of the sliding clamping mechanism, and an electric push rod is fixedly installed at the bottom of the side of the side plate. The top of the movable rod of the electric push rod is provided with a vertically sliding pressing mechanism. The two sides of the base plate are slidably connected with end adjustment mechanisms, and the top of the end adjustment mechanisms is provided with a support fixing mechanism for supporting and fixing the welded parts.

[0006] Preferably, the transverse drive mechanism includes a first motor and a bidirectional threaded screw. The bidirectional threaded screw is connected to the output end of the first motor via a spline drive, and the two sides of the middle part of the bidirectional threaded screw have opposite threads. The upper surface of the support frame is provided with a groove, and the bidirectional threaded screw is rotatably connected inside the groove. The first motor is fixedly installed on one side of the top of the support frame.

[0007] Preferably, the sliding clamping mechanism includes a slider and a sliding clamping plate. The slider is fixedly connected to the middle of the lower surface of the sliding clamping plate and is connected to the outside of the bidirectional threaded screw through a threaded drive. The sliding clamping plate is laterally slidably disposed on the upper surface of the support frame. The number of sliding clamping mechanisms is two, and the two sliding clamping mechanisms are symmetrically arranged with the vertical center line of the support frame as the axis of symmetry. Both sliders are connected to both sides of the middle of the bidirectional threaded screw through a threaded drive.

[0008] Preferably, there are four side plates, and the four side plates are respectively fixedly installed at both ends of the two sliding clamps on opposite sides. Each side plate has a vertical slot at both ends, and the clamping mechanism is located inside the two vertical slots. The electric push rod is fixedly connected to the bottom of the two corresponding side plates on opposite sides. The number of electric push rods is equal to the number of vertical slots, and several electric push rods correspond to several vertical slots.

[0009] Preferably, the clamping mechanism includes a vertical movable block, clamping toothed plates, a second motor, and a spur gear. The vertical movable block is vertically slidably connected inside the vertical slot, and its lower surface is fixedly connected to the top of the movable rod of the electric push rod. There are two clamping toothed plates, and both clamping toothed plates are horizontally inserted inside the vertical movable block. The spur gear is connected to the output end of the second motor via a spline and is rotatably connected to the top of the vertical movable block. The second motor is fixedly installed on the top of the side of the vertical movable block. The spur gear meshes with the two clamping toothed plates, and clamping mechanisms are provided on the sides of all four side plates.

[0010] Preferably, the end adjustment mechanism includes an adjustment plate, a pull-out plate, and a top plate. The pull-out plate is fixedly connected to the side of the adjustment plate near the bottom plate and passes through the inside of the bottom plate. The top plate is fixedly connected to the upper surface of the adjustment plate, and the supporting and fixing mechanism is disposed inside the top plate.

[0011] Preferably, the supporting and fixing mechanism includes a sliding sleeve, a lifting rod, a support plate, a movable plate, and a lower pressure plate. The sliding sleeve is laterally slidably connected to the inside of the top plate, and the lifting rod is vertically inserted through the inside of the sliding sleeve. The support plate is fixedly connected to the top of the lifting rod, and the movable plate is vertically inserted through one side of the upper surface of the support plate. The lower pressure plate is fixedly connected to the top of the movable plate and is vertically corresponding to the support plate. The number of supporting and fixing mechanisms is two, and the two supporting and fixing mechanisms are symmetrically arranged with the vertical center line of the bottom plate as the axis of symmetry.

[0012] The beneficial effects of the above technical solution are as follows:

[0013] This welding positioning fixture for vehicle frame tie rod supports, through the configuration of a sliding clamping mechanism, a pressing mechanism, an end adjustment mechanism, and a support fixing mechanism, allows the middle part of the tie rod to be placed on a support frame. The lateral drive mechanism drives the sliding clamping mechanism to clamp the tie rod radially on both sides. Then, an electric push rod drives the pressing mechanism to press down, allowing the pressing mechanisms on both sides of the tie rod axially to press it from above, thus firmly fixing the tie rod on the support frame. The workpiece to be welded can be fixed in the support fixing mechanism. The distance between the workpiece and the end of the tie rod can be adjusted by the end adjustment mechanisms on both sides. The support fixing mechanism itself can move laterally and vertically, thereby adjusting the specific position of the workpiece, facilitating precise positioning of the workpiece at the welding location, ensuring welding accuracy, and thus improving the production quality of vehicle frame tie rod supports. It is also suitable for precise welding of tie rod supports of different models. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the base plate structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the end adjustment mechanism of this utility model;

[0017] Figure 4 This is a schematic diagram of the transverse driving mechanism and the sliding clamping mechanism of this utility model;

[0018] Figure 5 This utility model Figure 4 A diagram illustrating the split state;

[0019] Figure 6 This is a schematic diagram of the disassembled clamping mechanism of this utility model;

[0020] Figure 7 This is a schematic diagram of the disassembled support and fixing mechanism of this utility model.

[0021] In the diagram: 1. Base plate; 2. Support frame; 3. Side plate; 4. Electric push rod; 5. First motor; 6. Bidirectional threaded screw; 7. Slide groove; 8. Slider; 9. Sliding clamp; 10. Vertical slot; 11. Vertical movable block; 12. Pressing tooth plate; 13. Second motor; 14. Spur gear rod; 15. Adjusting plate; 16. Pull-out plate; 17. Top plate; 18. Sliding sleeve; 19. Lifting rod; 20. Support plate; 21. Movable plate; 22. Lower pressure plate. Detailed Implementation

[0022] The foregoing and other technical contents, features and effects of this utility model are described in conjunction with the appendix below. Figures 1 to 7The embodiments are described in detail below.

[0023] This embodiment provides a welding positioning fixture for a vehicle frame tie rod bracket, as shown in the attached figure. Figure 1-7 As shown, the device includes a base plate 1 and a support frame 2. The support frame 2 is fixedly connected to the middle of the upper surface of the base plate 1 and has a transverse drive mechanism inside. The transverse drive mechanism includes a first motor 5 and a bidirectional threaded screw 6. The bidirectional threaded screw 6 is connected to the output end of the first motor 5 through a spline drive, and the two sides of the middle of the bidirectional threaded screw 6 have opposite threads. The upper surface of the support frame 2 has a sliding groove 7, and the bidirectional threaded screw 6 is rotatably connected inside the sliding groove 7. The first motor 5 is fixedly installed on one side of the top of the support frame 2. The operation of the first motor 5 can drive the bidirectional threaded screw 6 to rotate, thereby driving the external sliding clamping mechanism to move relative to each other through the opposite threads at both ends.

[0024] The upper surface of the support frame 2 is laterally slidably connected to a sliding clamping mechanism, which is also connected to the transverse drive mechanism. The sliding clamping mechanism includes a slider 8 and a sliding clamping plate 9. The slider 8 is fixedly connected to the middle of the lower surface of the sliding clamping plate 9 and is connected to the outside of the double-threaded screw 6 through a threaded drive. The sliding clamping plate 9 is laterally slidably arranged on the upper surface of the support frame 2. There are two sliding clamping mechanisms, and the two sliding clamping mechanisms are symmetrically arranged with the vertical center line of the support frame 2 as the axis of symmetry. Both sliders 8 are connected to the two sides of the middle of the double-threaded screw 6 through a threaded drive. The rotation of the double-threaded screw 6 can drive the sliders 8 on both sides to move closer or further away from each other, so that the sliding clamping plates 9 on both sides can clamp and release. The operator can place the horizontal tie rod to be welded on the support frame 2, and then drive the sliding clamping plates 9 on both sides through the transverse drive mechanism to clamp and fix the horizontal tie rod on the support frame 2.

[0025] Side plates 3 are fixedly installed on both sides of the sliding clamping mechanism, and electric push rods 4 are fixedly installed on the bottom of the side of the side plate 3. There are four side plates 3, and the four side plates 3 are respectively fixedly installed at the two ends of the two sliding clamping plates 9 on opposite sides. Vertical slots 10 are opened at both ends of the side of the side plate 3, and the clamping mechanism is set inside the two vertical slots 10. The clamping mechanism is vertically slidably connected inside the two vertical slots 10 and can move up and down inside them. The electric push rods 4 are fixedly connected to the bottom of the two corresponding side plates 3 on opposite sides. The number of electric push rods 4 is equal to the number of vertical slots 10, and several electric push rods 4 correspond to several vertical slots 10 respectively. The clamping mechanism is fixedly installed at the top of the movable rod of the electric push rod 4. The electric push rod 4 can drive the clamping mechanism to move up and down in the vertical slots 10.

[0026] The top of the movable rod of the electric push rod 4 is equipped with a vertically sliding clamping mechanism. The clamping mechanism includes a vertical movable block 11, clamping toothed plates 12, a second motor 13, and a spur gear rod 14. The vertical movable block 11 is vertically slidably connected inside the vertical slot 10, and its lower surface is fixedly connected to the top of the movable rod of the electric push rod 4. There are two clamping toothed plates 12, and both clamping toothed plates 12 are horizontally inserted inside the vertical movable block 11. The spur gear rod 14 is connected to the output end of the second motor 13 via a spline and is rotatably connected to the top of the vertical movable block 11. The second motor 13 is fixedly installed on the side of the vertical movable block 11. At the top, the spur gear rod 14 meshes with two clamping tooth plates 12. The second motor 13 drives the spur gear rod 14 to rotate, which drives the clamping tooth plates 12 to move laterally, thereby bringing the clamping tooth plates 12 on both sides of the support frame 2 closer to each other. The electric push rod 4 drives the vertical movable block 11 to move downward, so that the clamping tooth plates 12 extending from both sides can press against the top of the horizontal tie rod, thereby pressing it from above and further improving the firmness of the horizontal tie rod. The sides of the four side plates 3 are all provided with clamping mechanisms. Multiple clamping mechanisms can press the parts of the horizontal tie rod close to both ends of the support frame 2 respectively, making the fixing effect of the horizontal tie rod better.

[0027] Both sides of the base plate 1 are slidably connected to end adjustment mechanisms. The end adjustment mechanisms include an adjustment plate 15, a pull-out plate 16, and a top plate 17. The pull-out plate 16 is fixedly connected to the side of the adjustment plate 15 near the base plate 1 and passes through the interior of the base plate 1. A limit block is fixedly connected to the end of the upper surface of the pull-out plate 16 away from the adjustment plate 15. A limit groove is opened on the upper surface of the base plate 1 at the part corresponding to the limit block. The limit block can move in the limit groove and can limit the range of motion of the adjustment plate 15. The distance between the adjustment plate 15 and the base plate 1 can be adjusted by the pull-out plate 16, so as to facilitate the adjustment of the distance between the welded workpiece at the top of the support and fixing mechanism and the end of the horizontal tie rod. The top plate 17 is fixedly connected to the upper surface of the adjustment plate 15 and the support and fixing mechanism is located inside the top plate 17.

[0028] The end adjustment mechanism is equipped with a support and fixing mechanism at its top for supporting and fixing the welded parts. The support and fixing mechanism includes a sliding sleeve 18, a lifting rod 19, a support plate 20, a movable plate 21, and a lower pressure plate 22. The sliding sleeve is laterally slidably connected to the inside of the top plate 17, and the lifting rod 19 is vertically inserted through the inside of the sliding sleeve 18. A fixing bolt for fixing the lifting rod 19 is threaded through the top of the side of the sliding sleeve 18. Threaded holes are equidistantly opened on the side of the lifting rod 19. One end of the fixing bolt, which passes through the side of the sliding sleeve 18, is threaded through the corresponding threaded hole on the side of the lifting rod 19, thereby fixing the height of the lifting rod 19. The support plate 20 is fixedly connected to the top of the lifting rod 19, and the movable plate 21 is vertically inserted through the support plate 21. On one side of the upper surface of the support plate 20, the lower pressure plate 22 is fixedly connected to the top of the movable plate 21 and is vertically corresponding to the support plate 20. The support plate 20 is threaded with a fixing bolt on the side near the movable plate 21. The movable plate 21 has threaded holes vertically spaced at equal intervals. The fixing bolts on the side of the support plate 20 can be threadedly connected to the corresponding threaded holes on the movable plate 21, which can fix the height of the lower pressure plate 22, thereby facilitating the pressing and fixing of welding workpieces of different sizes onto the support plate 20. There are two support and fixing mechanisms, and the two support and fixing mechanisms are symmetrically arranged with the vertical center line of the base plate 1 as the axis of symmetry. The two support and fixing mechanisms can fix the welding workpieces at both ends of the horizontal tie rod and accurately fix them to the ends of both sides of the horizontal tie rod.

[0029] The electric push rod 4, the first motor 5, and the second motor 13 are all electrically connected to an external circuit via wires.

[0030] In summary, the welding positioning fixture for the cross brace bracket of the vehicle frame is used in the following steps:

[0031] 1. Place the middle part of the horizontal tie rod on the support frame 2, and then control the bidirectional threaded screw 6 to rotate through the first motor 5 to drive the sliding clamps 9 on both sides to move closer to each other until the horizontal tie rod is clamped and then stop.

[0032] 2. Then, control the second motors 13 on both sides to drive the spur gear rod 14 to rotate, and move the clamping tooth plates 12 on both sides towards the center until the clamping tooth plates 12 on both sides abut against each other. Then, drive the vertical movable block 11 to move down through the electric push rod 4, so that the clamping tooth plates 12 are pressed against the top of the horizontal tie rod, thereby further improving the firmness of the horizontal tie rod fixation.

[0033] 3. Place the workpieces to be welded on the support plates 20 on both sides respectively, fix the workpieces by pressing down plate 22, and then adjust the height and lateral position of the workpieces to be welded by lifting rod 19 and sliding sleeve 18 so that the workpieces to be welded are aligned with the welding part at the end of the horizontal tie rod. Then adjust the adjusting plate 15 to move towards the base plate 1 so that the workpieces to be welded are accurately aligned with the welding part of the horizontal tie rod and then welded.

[0034] The above description is only for illustrating the present utility model. It should be understood that the present utility model is not limited to the above embodiments, and various modifications that conform to the concept of the present utility model are within the protection scope of the present utility model.

Claims

1. A welding positioning tool for a cross rod support of a vehicle frame, comprising a base plate (1) and a support frame (2), characterized in that: The support frame (2) is fixedly connected to the middle of the upper surface of the bottom plate (1), and a transverse driving mechanism is arranged in the support frame (2); the upper surface of the support frame (2) is transversely slidably connected with a sliding clamping mechanism, and the sliding clamping mechanism is in transmission connection with the transverse driving mechanism; both sides of the sliding clamping mechanism are fixedly provided with side plates (3), and the bottom of the side surface of each side plate (3) is fixedly provided with an electric push rod (4); the top end of the movable rod body of the electric push rod (4) is provided with a pressure mechanism which can vertically slide; both sides of the bottom plate (1) are slidably connected with end adjusting mechanisms, and the top end of each end adjusting mechanism is provided with a support fixing mechanism which can support and fix the welding piece.

2. The welding positioning tool for the cross tie bracket of the vehicle frame according to claim 1, characterized in that: The transverse driving mechanism comprises a first motor (5) and a bidirectional screw rod (6); the bidirectional screw rod (6) is in transmission connection with the output end of the first motor (5) through a spline, and the two sides of the middle portion of the bidirectional screw rod (6) are oppositely threaded; the upper surface of the support frame (2) is provided with a sliding groove (7), and the bidirectional screw rod (6) is rotatably connected in the sliding groove (7); and the first motor (5) is fixedly arranged on one side of the top of the support frame (2).

3. A welding fixture for a vehicle frame control arm bracket as defined in claim 2 wherein: The sliding clamping mechanism comprises a sliding block (8) and a sliding clamping plate (9); the sliding block (8) is fixedly connected to the middle of the lower surface of the sliding clamping plate (9) and is in threaded transmission connection with the outside of the bidirectional screw rod (6); the sliding clamping plate (9) is transversely slidably arranged on the upper surface of the support frame (2); the number of the sliding clamping mechanisms is two, and the two sliding clamping mechanisms are symmetrically arranged with the vertical center line of the support frame (2) as the axis of symmetry; and the two sliding blocks (8) are in threaded transmission connection with the two sides of the middle portion of the bidirectional screw rod (6).

4. The welding fixture for a cross shaft support of a vehicle frame according to claim 1, characterized in that: The number of the side plates (3) is four, and each side plate (3) is fixedly arranged on the two ends of the side away from each other of the two sliding clamping plates (9); the two ends of the side surface of each side plate (3) are provided with vertical clamping grooves (10), and the pressure mechanism is arranged in the vertical clamping grooves (10); the electric push rod (4) is fixedly connected to the bottom of the side away from each other of the two corresponding side plates (3); the number of the electric push rods (4) is equal to the number of the vertical clamping grooves (10), and each electric push rod (4) corresponds to each vertical clamping groove (10).

5. A welding fixture for a vehicle frame control arm bracket according to claim 4, wherein: The pressure mechanism comprises a vertical movable block (11), a pressure tooth plate (12), a second motor (13) and a straight gear rod (14); the vertical movable block (11) is vertically slidably connected in the vertical clamping groove (10), and the lower surface is fixedly connected with the top end of the movable rod body of the electric push rod (4); the number of the pressure tooth plates (12) is two, and each pressure tooth plate (12) is transversely arranged in the vertical movable block (11); the straight gear rod (14) is in transmission connection with the output end of the second motor (13) through a spline, and is rotatably connected with the top of the vertical movable block (11); the second motor (13) is fixedly arranged on the top of the side surface of the vertical movable block (11); the straight gear rod (14) is in meshing connection with the two pressure tooth plates (12); and the side surface of each side plate (3) is provided with the pressure mechanism.

6. The welding fixture for a cross shaft support of a vehicle frame according to claim 1, characterized in that: The end adjusting mechanism comprises an adjusting plate (15), a pulling plate (16) and a top plate (17), the pulling plate (16) is fixedly connected to one side of the adjusting plate (15) close to the bottom plate (1) and is arranged in the inside of the bottom plate (1), and the top plate (17) is fixedly connected to the upper surface of the adjusting plate (15) and supports the fixing mechanism arranged in the inside of the top plate (17).

7. A welding fixture for a vehicle frame control arm bracket according to claim 6, wherein: The supporting fixing mechanism comprises a sliding sleeve (18), a lifting rod (19), a supporting plate (20), a movable plate (21) and a pressing plate (22), the sliding sleeve (18) is transversely and slidingly connected in the inside of the top plate (17), the lifting rod (19) is vertically arranged in the inside of the sliding sleeve (18), the supporting plate (20) is fixedly connected to the top end of the lifting rod (19), the movable plate (21) is vertically arranged in one side of the upper surface of the supporting plate (20), and the pressing plate (22) is fixedly connected to the top end of the movable plate (21) and vertically corresponds to the supporting plate (20), the number of the supporting fixing mechanism is two, and the two supporting fixing mechanisms are symmetrically arranged with the vertical center line of the bottom plate (1) as the symmetric axis.

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