A quick positioning welding tool

Abstract

The utility model discloses a kind of welding toolings of quick positioning, including bottom plate, positioning device and rely on flat positioning block, the positioning device and rely on flat positioning block are all installed on bottom plate, the positioning device includes mounting seat, synchronous push rod and multiple positioning mechanisms, the mounting seat is fixedly connected with bottom plate, the positioning mechanism includes mounting bracket, support plate, support sleeve, sliding tube, positioning rod, connecting rod and rocker, the synchronous push rod is equipped with multiple connecting sleeves, multiple the connecting sleeve and multiple positioning mechanisms one-to-one correspondence, the connecting sleeve is fixedly connected with driving sleeve, the driving sleeve is sleeved on rocker.The utility model obtains beneficial effect: the movement of synchronous push rod can synchronously drive the positioning rod of multiple positioning mechanisms to move, the positioning action of multiple points is completed once, without operating multiple positioning mechanisms respectively, it is easy to operate, effectively improve production efficiency, reach the advantage that workpiece is positioned conveniently.

Description

Technical Field

[0001] This utility model relates to the technical field of welding fixtures, and specifically to a welding fixture for rapid positioning. Background Technology

[0002] Welding is a processing method that fixes two metal workpieces into a whole. To ensure that the position and size of the two metal parts meet the requirements after welding, welding fixtures are needed to position the metal workpieces.

[0003] Chinese utility model patent with announcement number CN202780338U discloses a welding and positioning fixture for a loader counterweight traction. The counterweight traction is a rectangular frame structure composed of four plate plates welded together. On the outer side of one of the plate plates, there is a connecting part formed by two parallel and aligned triangular plates. The welding and positioning fixture includes a base, a positioning seat on the base, and a horizontal positioning mechanism on the base for positioning the various components of the counterweight traction in the horizontal direction. The horizontal positioning mechanism presses and positions the four plate plates and the connecting part of the counterweight traction on the positioning seat.

[0004] Traditional welding fixtures require the operation of multiple positioning mechanisms to complete the workpiece positioning, which is cumbersome and affects production efficiency. Therefore, existing technologies have the technical problem of inconvenient workpiece positioning. Utility Model Content

[0005] In order to solve the above-mentioned technical problems, the purpose of this utility model is to provide a welding fixture for rapid positioning, which includes a base plate, a positioning device and a flat positioning block. This welding fixture for rapid positioning has the advantage of facilitating the positioning of workpieces.

[0006] To achieve the above-mentioned objectives, the technical solution adopted by this utility model is as follows:

[0007] A rapid positioning welding fixture includes a base plate, a positioning device, and a flat positioning block. Both the positioning device and the flat positioning block are mounted on the base plate. The positioning device includes a mounting base, a synchronous push rod, and multiple positioning mechanisms. The mounting base is fixedly connected to the base plate. Each positioning mechanism includes a mounting frame, a support plate, a support sleeve, a sliding tube, a positioning rod, a connecting rod, and a rocker arm. The mounting frame is mounted on the mounting base. The support plate is fixedly connected to the mounting base. The support sleeve is fixedly mounted on the support plate. The sliding tube is slidably connected to the support sleeve. The positioning rod is mounted on one end of the sliding tube near the flat positioning block. The mounting frame is rotatably connected to a rotating frame. The sliding tube is mounted on a connecting frame. Both ends of the connecting rod are rotatably connected to the rotating frame and the connecting frame, respectively. The rocker arm is fixedly connected to the rotating frame. The synchronous push rod is fitted with multiple connecting sleeves, each corresponding to one of the multiple positioning mechanisms. A drive sleeve is fixedly connected to each connecting sleeve and fitted onto the rocker arm.

[0008] Preferably, the positioning rod is threadedly connected to the sliding tube, and the positioning rod is threadedly connected to a positioning nut that engages with the sliding tube.

[0009] Preferably, the end of the positioning rod away from the sliding tube is fixedly connected to an external hexagonal screw head.

[0010] Preferably, two support plates are provided, and the two ends of the support sleeve are fixedly connected to the two support plates respectively.

[0011] Preferably, the mounting base is provided with a sliding groove, on which multiple sliders are slidably mounted. Each slider corresponds to a positioning mechanism. Each slider is fixedly connected to a screw extending out of the sliding groove. The screw passes through the mounting frame and is fixedly connected to a locking nut that engages with the mounting frame.

[0012] Preferably, each slider is provided with two screws.

[0013] Preferably, two slides are provided.

[0014] Preferably, the rocker arm is threaded with a limiting nut that engages with the drive sleeve.

[0015] Preferably, the connecting sleeve is threaded with a locking screw that abuts against the synchronous push rod.

[0016] Preferably, the connecting frame is fixedly connected to a guide rod, the guide rod is inserted into the sliding tube and slidably connected to the sliding tube, the guide rod is fixedly connected to a limit block, the sliding tube is fixedly connected to a limit ring that engages with the limit block on the side near the connecting frame, and the guide rod is provided with flexible pads at both ends that engage with the sliding tube and the connecting frame respectively.

[0017] Compared with the prior art, this utility model has achieved beneficial technical effects:

[0018] Multiple connecting sleeves correspond one-to-one with multiple positioning mechanisms, enabling the movement of the synchronous push rod to synchronously drive the positioning rods of multiple positioning mechanisms to move, completing the positioning action of multiple points at one time. This eliminates the need to operate multiple positioning mechanisms separately, simplifying operation, effectively improving production efficiency, and achieving the advantage of convenient workpiece positioning. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of a welding fixture for rapid positioning according to an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the positioning device in an embodiment of this utility model;

[0021] Figure 3This is a cross-sectional view of the positioning mechanism in an embodiment of this utility model.

[0022] The technical features referred to by the various reference numerals in the accompanying drawings are as follows:

[0023] 11. Base plate; 12. Flat positioning block; 13. Mounting base; 14. Slide groove; 15. Slider; 16. Screw; 17. Locking nut; 21. Mounting bracket; 22. Support plate; 23. Support sleeve; 24. Sliding tube; 25. Positioning rod; 26. Positioning nut; 27. External hexagonal screw head; 31. Connecting rod; 32. Rocker arm; 33. Rotating frame; 34. Connecting frame; 35. Guide rod; 36. Limiting block; 37. Limiting ring; 38. Flexible pad; 41. Synchronous push rod; 42. Connecting sleeve; 43. Drive sleeve; 44. Limiting nut; 45. Locking screw. Detailed Implementation

[0024] To make the objectives, technical solutions and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the embodiments. However, the scope of protection of this utility model is not limited to the specific embodiments described below.

[0025] refer to Figure 1-3 A welding fixture for rapid positioning includes a base plate 11, a positioning device and a flat positioning block 12, both of which are mounted on the base plate 11.

[0026] The positioning device includes a mounting base 13, a synchronous push rod 41, and multiple positioning mechanisms. The mounting base 13 is fixedly connected to the base plate 11. The positioning mechanism includes a mounting frame 21, a support plate 22, a support sleeve 23, a sliding tube 24, a positioning rod 25, a connecting rod 31, and a rocker arm 32. The mounting frame 21 is mounted on the mounting base 13. The mounting base 13 is provided with a sliding groove 14, on which multiple sliders 15 are slidably mounted. Each slider 15 corresponds one-to-one with a positioning mechanism. Each slider 15 is fixedly connected to a screw 16 extending out of the sliding groove 14. The screw 16 passes through the mounting frame 21 and is fixedly connected to a locking nut 17 that engages with the mounting frame 21. Each slider 15 has two screws 16. There are two sliding grooves 14.

[0027] Support plate 22 is fixedly connected to mounting base 13. Support sleeve 23 is fixedly installed on support plate 22. Two support plates 22 are provided in total, and both ends of support sleeve 23 are fixedly connected to the two support plates 22 respectively. Sliding tube 24 is slidably connected to support sleeve 23. Positioning rod 25 is installed on the end of sliding tube 24 near the flat positioning block 12. Positioning rod 25 is threadedly connected to sliding tube 24, and positioning nut 26 that engages with sliding tube 24 is threadedly connected to positioning rod 25. Hexagonal screw head 27 is fixedly connected to the end of positioning rod 25 away from sliding tube 24.

[0028] Mounting bracket 21 is rotatably connected to rotating bracket 33, sliding tube 24 is mounted with connecting bracket 34, connecting rod 31 is rotatably connected to rotating bracket 33 and connecting bracket 34 at both ends respectively, rocker arm 32 is fixedly connected to rotating bracket 33, synchronous push rod 41 is fitted with multiple connecting sleeves 42, each corresponding to a positioning mechanism, and a drive sleeve 43 is fixedly connected to the connecting sleeve 42, which is fitted onto rocker arm 32. Rocker arm 32 is threadedly connected to a limiting nut 44 that engages with drive sleeve 43. Tightening the limiting nut 44 engages with drive sleeve 43, preventing drive sleeve 43 from slipping off rocker arm 32. Connecting sleeve 42 is threadedly connected to a locking screw 45 that abuts against synchronous push rod 41. Tightening the locking screw 45 abuts against synchronous push rod 41, and the friction between locking screw 45 and synchronous push rod 41 fixes connecting sleeve 42 onto synchronous push rod 41, preventing connecting sleeve 42 from sliding on synchronous push rod 41.

[0029] A guide rod 35 is fixedly connected to the connecting frame 34. The guide rod 35 is inserted into the sliding tube 24 and slidably connected to the sliding tube 24. A limit block 36 is fixedly connected to the guide rod 35. A limit ring 37 is fixedly connected to the sliding tube 24 and engages with the limit block 36 on the side near the connecting frame 34. A flexible pad 38 is inserted through the guide rod 35, with both ends engaging with the sliding tube 24 and the connecting frame 34 respectively. The flexible pad 38 is made of polyurethane material, which is elastic and has a sufficiently large rebound force to ensure that the pressure applied by the connecting frame 34 to the sliding tube 24 and the positioning rod 25 through the elastic element is sufficient to push the workpiece towards the flat positioning block 12.

[0030] In use, the workpiece is placed on the base plate 11 and positioned between the leveling positioning block 12 and the positioning rod 25. Then, the operator pushes the synchronous push rod 41, and the connecting sleeve 42 on the synchronous push rod 41 drives the drive sleeve 43 to move. Since the drive sleeve 43 is fitted onto the rocker arm 32, the rocker arm 32 rotates as the drive sleeve 43 moves, thereby driving the rotating frame 33 to rotate. The rotating frame 33 drives the connecting frame 34 to move through the connecting rod 31. The connecting frame 34 is connected to the sliding tube 24, so that the sliding tube 24 slides within the support sleeve 23. The sliding tube 24 drives the positioning rod 25 to move towards the leveling positioning block 12. During the movement, the positioning rod 25 pushes the workpiece until it engages with the leveling positioning block 12, making the workpiece flat and stable with the leveling positioning block 12. Thus, the workpiece can be clamped by the leveling positioning block 12 and the positioning rod 25, achieving workpiece positioning.

[0031] This embodiment has the following advantages:

[0032] Multiple connecting sleeves 42 correspond one-to-one with multiple positioning mechanisms, so that the movement of the synchronous push rod 41 can synchronously drive the positioning rods 25 of multiple positioning mechanisms to move, completing the positioning action of multiple points at one time. There is no need to operate multiple positioning mechanisms separately, which is simple to operate, effectively improves production efficiency, and achieves the advantage of convenient workpiece positioning.

[0033] By using multiple positioning mechanisms to simultaneously position the workpiece, it is possible to position the workpiece at different locations, ensuring accurate positioning and uniform force distribution, thus guaranteeing the stability of the workpiece during positioning and clamping.

[0034] The positioning rod 25 can be rotated, and its extension length beyond the sliding tube 24 can be adjusted via a threaded connection to accommodate the positioning requirements of workpieces of different sizes. After adjusting the length of the positioning rod 25, tighten the positioning nut 26 to engage with the sliding tube 24, preventing the positioning rod 25 from rotating during use and changing its extension length.

[0035] Using tools such as wrenches, the head 27 of the external hexagonal screw can be easily clamped, which makes it easy to rotate the positioning rod 25 and adjust the length of the positioning rod 25 extending from the sliding tube 24.

[0036] The two ends of the support sleeve 23 are fixedly connected to the two support plates 22 respectively, which enhances the stability of the support sleeve 23 and can better ensure that the sliding tube 24 slides smoothly in the support sleeve 23, thereby ensuring the accuracy and stability of the movement of the positioning rod 25.

[0037] The slider 15 can slide within the groove 14, thereby driving the positioning mechanism to move on the mounting base 13. The positions of each positioning mechanism can be adjusted according to the specific shape of the workpiece and the positioning requirements. After the positions are adjusted, tighten the locking nut 17 on the screw 16 to engage with the mounting bracket 21, pressing the mounting bracket 21 onto the mounting base 13 and fixing the mounting bracket 21 onto the slider 15, thus fixing the position of the positioning mechanism and ensuring that the positioning mechanism will not shift during operation.

[0038] The two screws 16 provide a more stable connection between the slider 15 and the mounting bracket 21, making the connection between the mounting bracket 21 and the slider 15 more robust. During operation of the positioning mechanism, they can better withstand forces from all directions, preventing the mounting bracket 21 from wobbling or shifting, further improving the stability and accuracy of the positioning.

[0039] The sliders 15 on the two slides 14 simultaneously provide support for the mounting bracket 21, making the mounting bracket 21 more stable and further improving the stability and accuracy of positioning.

[0040] During the process of the rotating frame 33 driving the connecting frame 34 towards the flat positioning block 12 via the connecting rod 31, there may be some installation errors in the positions of the multiple positioning rods 25. To prevent some positioning rods 25 from failing to contact the workpiece, the multiple connecting frames 34 provide thrust to the sliding tube 24 and the positioning rods 25 through flexible pads 38. When the positioning rods 25 push the workpiece to fit against the flat positioning block 12, if a positioning rod 25 does not fully contact the workpiece due to installation errors, the flexible pads 38 on the connecting frame 34 will be compressed, using their own elasticity to generate thrust, and causing the positioning rod 25 that has not contacted the workpiece to continue moving towards the workpiece until it contacts the workpiece and applies a certain pressure, ensuring that each positioning rod 25 can effectively position the workpiece. This allows the positioning mechanism to adapt to minor dimensional deviations and installation errors of the workpiece to a certain extent, enhancing the versatility and reliability of the welding fixture. Even when facing workpieces with low precision or slight deformation, accurate and stable positioning can be achieved, further improving production efficiency and product quality.

[0041] Meanwhile, the flexible pad 38 can also act as a buffer, reducing the damage to the workpiece surface caused by the positioning rod 25 during the pushing process, and improving the processing quality of the workpiece.

[0042] When the rotating frame 33 drives the connecting frame 34 to move away from the flat positioning block 12 via the connecting rod 31, the guide rod 35 drives the limiting block 36 to engage with the limiting ring 37, thereby enabling the guide rod 35, the limiting block 36 and the limiting ring 37 to pull the sliding tube 24 to move away from the flat positioning block 12, thus realizing the reset of the mechanism.

[0043] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the utility model should also fall within the protection scope of the claims of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on the utility model.

Claims

1. A welding fixture for rapid positioning, comprising a base plate (11), a positioning device, and a flat positioning block (12), wherein the positioning device and the flat positioning block (12) are both mounted on the base plate (11), characterized in that: The positioning device includes a mounting base (13), a synchronous push rod (41), and multiple positioning mechanisms. The mounting base (13) is fixedly connected to the base plate (11). The positioning mechanism includes a mounting frame (21), a support plate (22), a support sleeve (23), a sliding tube (24), a positioning rod (25), a connecting rod (31), and a rocker arm (32). The mounting frame (21) is mounted on the mounting base (13). The support plate (22) is fixedly connected to the mounting base (13). The support sleeve (23) is fixedly mounted on the support plate (22). The sliding tube (24) is slidably connected to the support sleeve (23). The positioning rod (25) is slidably connected to the support sleeve (23). The mounting bracket (21) is rotatably connected to the rotating bracket (33), and the sliding tube (24) is equipped with a connecting bracket (34). The two ends of the connecting rod (31) are rotatably connected to the rotating bracket (33) and the connecting bracket (34) respectively. The rocker arm (32) is fixedly connected to the rotating bracket (33). The synchronous push rod (41) is fitted with multiple connecting sleeves (42). The multiple connecting sleeves (42) correspond one-to-one with multiple positioning mechanisms. The connecting sleeves (42) are fixedly connected with the drive sleeves (43). The drive sleeves (43) are fitted on the rocker arm (32).

2. The rapid positioning welding fixture according to claim 1, characterized in that: The positioning rod (25) is threadedly connected to the sliding tube (24), and the positioning rod (25) is threadedly connected to a positioning nut (26) that engages with the sliding tube (24).

3. The rapid positioning welding fixture according to claim 2, characterized in that: The end of the positioning rod (25) away from the sliding tube (24) is fixedly connected to an external hexagonal screw head (27).

4. The rapid positioning welding fixture according to claim 1, characterized in that: Two support plates (22) are provided in total, and the two ends of the support sleeve (23) are fixedly connected to the two support plates (22) respectively.

5. The rapid positioning welding fixture according to claim 1, characterized in that: The mounting base (13) is provided with a sliding groove (14), and multiple sliders (15) are slidably mounted on the sliding groove (14). Each slider (15) corresponds to a multiple positioning mechanism. Each slider (15) is fixedly connected to a screw (16) extending out of the sliding groove (14). The screw (16) passes through the mounting frame (21), and the screw (16) is fixedly connected to a locking nut (17) that engages with the mounting frame (21).

6. The rapid positioning welding fixture according to claim 5, characterized in that: Each slider (15) is provided with two screws (16).

7. The rapid positioning welding fixture according to claim 5, characterized in that: Two slides (14) are provided.

8. The rapid positioning welding fixture according to claim 1, characterized in that: The rocker arm (32) is threadedly connected to a limiting nut (44) that engages with the drive sleeve (43).

9. The rapid positioning welding fixture according to claim 1, characterized in that: The connecting sleeve (42) is threadedly connected to a locking screw (45) that abuts against the synchronous push rod (41).

10. The rapid positioning welding fixture according to claim 1, characterized in that: The connecting frame (34) is fixedly connected to a guide rod (35), the guide rod (35) is inserted into the sliding tube (24) and the guide rod (35) is slidably connected to the sliding tube (24), the guide rod (35) is fixedly connected to a limit block (36), the sliding tube (24) is fixedly connected to a limit ring (37) that is engaged with the limit block (36) on the side near the connecting frame (34), and the guide rod (35) is provided with flexible pads (38) at both ends that are engaged with the sliding tube (24) and the connecting frame (34) respectively.

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