Numerical control rotary welding platform

Abstract

The utility model discloses a numerical control rotary welding platform which comprises a working table, a driving part and a rotary platform are arranged at the bottom of the working table, the driving part comprises a driving motor and a transmission box, the transmission box is provided with the rotary platform through a transmission shaft, and a synchronous structure and a plurality of clamps are installed at the top of the rotary platform. The synchronous structure drives the clamp to clamp the workpiece in the middle; the clamp comprises a clamping jaw and a lead screw, the clamping jaw is slidably mounted at the top of the rotating platform, the rotatable lead screw is mounted at the top of the workbench through a bearing seat, and the clamping jaw is in threaded connection with the lead screw. According to the numerical control rotary welding platform, the multiple clamps are driven by the synchronous structure to synchronously move towards the center of the circle center of the rotary platform, when tubular, shafts and cylinders are clamped, the high coaxiality can be kept, the phenomenon that welding spots deviate due to eccentric rotation is avoided, the stepping motor is adopted as the driving motor, and the rotating angle of the rotary platform can be accurately controlled.

Description

Technical Field

[0001] The utility model relates to the technical field of a welding workbench, in particular to a numerically controlled rotary welding platform. Background Art

[0002] How to use the welding platform. As the name suggests, the welding work is carried out on the platform, and it is inevitable to knock. The force of the knocking makes it impossible to use a panel that is too thin. The method of casting welding platform castings: The wall thickness of the welding platform casting is too thin. When producing castings, defects such as insufficient casting and cold shut will occur. This is because the excessively thin wall thickness cannot ensure that the casting alloy liquid has sufficient capacity to fill the mold.

[0003] The welding equipment performs welding processing on the workpiece through the robot arm, but due to the obstruction of the workpiece volume and the limited operating range of the robot arm, the welding processing on the side of the workpiece far away from the robot arm cannot be completed, and it is necessary to purchase an additional welding equipment, or the workpiece needs to be re-clamped. The processing efficiency of tubular, shaft, and cylindrical workpieces is very low, so a rotating workpiece welding platform is required. Utility Model Content

[0004] The purpose of the utility model is to provide a numerically controlled rotary welding platform to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] The CNC rotary welding platform comprises a workbench, a driving part and a rotary platform are arranged at the bottom of the workbench, the driving part comprises a driving motor and a transmission box, the transmission box is provided with the rotary platform through a transmission shaft, a synchronous structure and a plurality of clamps are arranged on the top of the rotary platform, and the synchronous structure drives the clamps to clamp the workpiece in the center;

[0007] The clamp includes a clamping jaw and a screw rod. The clamping jaw is slidably installed on the top of the rotating platform. The rotatable screw rod is installed on the top of the workbench through the bearing seat. The clamping jaw and the screw rod are threadedly connected.

[0008] The synchronous structure includes a synchronous bracket, an annular structure, gears and a gear ring. The top of the rotating platform is equipped with an annular structure through the synchronous bracket, the end of the screw rod is equipped with a gear, and the annular structure is equipped with a gear ring meshing with the gear.

[0009] As a further solution of the utility model: the workbench is rotatably connected to the transmission shaft through a bearing, and the top of the transmission shaft is fixed to the rotating platform through bolts.

[0010] As a further solution of the utility model: a slide groove with an annular portion is provided on the top of the rotating platform, and the clamping claw is slidably installed inside the slide groove, and the clamping claw slides toward the center of the circle along the opening direction of the slide groove.

[0011] As a further solution of the utility model: the top of the rotating platform fixes the synchronous bracket above the screw rod through supporting feet, an annular groove is opened on the outer side of the synchronous bracket, and the annular structure is rotatably installed in the annular groove of the synchronous bracket through a plane bearing.

[0012] As a further solution of the utility model: the gear ring is installed at the bottom of the annular structure, and the meshing teeth of the gear ring are installed downward to mesh with the gears installed by the multiple screw rods.

[0013] As a further solution of the utility model: a driving member is installed at the end of the screw rod, and a jaw engaged with the chuck wrench is provided in the driving member.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The CNC rotary welding platform drives multiple clamps to move synchronously toward the center of the rotating platform through a synchronous structure. When clamping tubular, shaft, or cylindrical objects, it can maintain high coaxiality to avoid welding point displacement due to eccentric rotation. The driving motor uses a stepper motor, which enables it to accurately control the rotation angle of the rotating platform. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of a CNC rotary welding platform;

[0017] Figure 2 It is a structural exploded view of a synchronous structure in a CNC rotary welding platform;

[0018] Figure 3 It is a structural front view of a CNC rotary welding platform.

[0019] In the figure: 1. workbench; 2. driving part; 3. rotating platform; 4. slide; 5. gear; 6. screw; 7. driving part; 8. clamping claw; 9. synchronous bracket; 10. annular structure; 11. annular groove; 12. support foot; 13. gear ring; 14. bearing seat; 15. bearing; 16. transmission shaft. DETAILED DESCRIPTION

[0020] See also Figures 1 to 3In the embodiment of the utility model, the CNC rotary welding platform includes a workbench 1, a driving part 2 and a rotating platform 3 are arranged at the bottom of the workbench 1, the driving part 2 includes a driving motor and a transmission box, the transmission box is installed with the rotating platform 3 through a transmission shaft 16, and a synchronous structure and a plurality of clamps are installed on the top of the rotating platform 3. The synchronous structure drives the clamp to clamp the workpiece in the center. The clamping of tubular, shaft, and cylindrical workpieces needs to keep the coaxiality of the workpiece and the workbench as much as possible to avoid large deviations during the rotation process, resulting in the offset of the welding point and affecting the welding quality;

[0021] The clamp includes a clamping jaw 8 and a screw rod 6. The clamping jaw 8 is slidably installed on the top of the rotating platform 3. The rotatable screw rod 6 is installed on the top of the workbench 1 through the bearing seat 14. The clamping jaw 8 is threadedly connected with the screw rod 6. The screw rod 6 rotates and pushes the clamping jaw 8 to slide on the top of the rotating platform 3 through the thread, which results in the displacement clamping action of the time clamping jaw.

[0022] The synchronous structure includes a synchronous bracket 9, an annular structure 10, a gear 5 and a gear ring 13. The annular structure 10 is installed on the top of the rotating platform 3 through the synchronous bracket 9, and the gear 5 is installed at the end of the screw rod 6. The annular structure 10 is installed with a gear ring 13 meshing with the gear 5. A slide groove 4 with an annular portion is opened on the top of the rotating platform 3. The clamping jaw 8 is slidably installed inside the slide groove 4. The clamping jaw 8 slides toward the center of the circle along the opening direction of the slide groove 4. When one of the screw rod 6 or the annular structure 10 is driven to rotate, the gear 5 drives the clamping jaw 8 to move through the screw rod 6 to achieve a clamping action. The annular structure 10 plays a key linkage role. When clamping tubular, shaft, or cylinder, the clamping jaw 8 can be moved synchronously, thereby fixing the tubular, shaft, or cylinder in a central position, meeting the key requirement of coaxiality with the rotating platform 3, and improving the welding quality. The driving motor is a stepping motor. By controlling the precise rotation angle, the number of swings of the robot arm can be reduced, thereby reducing the programming amount of the robot arm.

[0023] In a preferred embodiment, the workbench 1 is rotatably connected to the transmission shaft 16 through a bearing 15, and the top of the transmission shaft 16 is fixed to the rotating platform 3 by bolts. The transmission shaft 16 serves as the main supporting component of the rotating platform 3. Under the fixing action of the bearing 15, the transmission shaft 16 and the rotating platform 3 can be kept stable during rotation.

[0024] In a preferred embodiment, the top of the rotating platform 3 fixes the synchronous bracket 9 above the screw 6 through the support feet 12, and an annular groove 11 is opened on the outer side of the synchronous bracket 9. The annular structure 10 is rotatably installed in the annular groove 11 of the synchronous bracket 9 through a plane bearing, and the gear ring 13 is installed at the bottom of the annular structure 10. The meshing teeth of the gear ring 13 are installed downward and mesh with the gears 5 installed by multiple screws. The meshing teeth of the gear ring 13 are downward and can effectively prevent welding sparks or residues from falling, resulting in jamming or deformation of the equipment during the meshing process. In order to meet the installation requirements of the annular structure 10, the synchronous bracket 9 is installed and a plane bearing is configured to meet the installation height and rotation function of the annular structure 10.

[0025] In a preferred embodiment, a driving member 7 is installed at the end of the screw rod, and a jaw that engages with the chuck wrench is opened in the driving member 7. Due to the rotation requirement of the rotating platform 3, the driving of the clamp installed on the top of the rotating platform 3 cannot be achieved by the air cylinder and the oil cylinder. Inserting the chuck wrench into the jaws and rotating it is the simplest and lowest-cost operation method. The purpose of providing kinetic energy for the moving and static electrical connection can also be achieved by adding a brush ring. It is necessary to install a stepper motor that can rotate the driving member 7 on the rotating platform 3 to realize CNC drive.

[0026] It should be noted that the above embodiments all belong to the same utility model concept, and the description of each embodiment has its own focus. For matters that are not described in detail in some embodiments, reference can be made to the description in other embodiments.

[0027] The above-mentioned embodiments only express the implementation methods of the utility model, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A numerically controlled rotary welding platform, comprising a workbench (1), wherein a driving part (2) and a rotary platform (3) are arranged at the bottom of the workbench (1), wherein the driving part (2) comprises a driving motor and a transmission box, and the transmission box is mounted on the rotary platform (3) via a transmission shaft (16), wherein: A synchronous structure and a plurality of clamps are installed on the top of the rotating platform (3), and the synchronous structure drives the clamps to clamp the workpiece in the center; The clamp comprises a clamping jaw (8) and a screw rod (6); the clamping jaw (8) is slidably mounted on the top of the rotating platform (3); the screw rod (6) is rotatably mounted on the top of the working platform (1) through a bearing seat (14); and the clamping jaw (8) and the screw rod (6) are threadedly connected; The synchronous structure comprises a synchronous bracket (9), an annular structure (10), a gear (5) and a gear ring (13); the top of the rotating platform (3) is mounted with the annular structure (10) via the synchronous bracket (9); the gear (5) is mounted at the end of the screw rod (6); and the annular structure (10) is mounted with a gear ring (13) meshing with the gear (5).

2. The CNC rotary welding platform according to claim 1, characterized in that: The workbench (1) is rotatably connected to a transmission shaft (16) via a bearing (15), and the top of the transmission shaft (16) is fixed to the rotating platform (3) via bolts.

3. The CNC rotary welding platform according to claim 1, characterized in that: A slide groove (4) in the form of an annular portion is provided on the top of the rotating platform (3), and a clamping claw (8) is slidably installed inside the slide groove (4), and the clamping claw (8) slides toward the center of the circle along the opening direction of the slide groove (4).

4. The CNC rotary welding platform according to claim 1, characterized in that: The top of the rotating platform (3) fixes the synchronous bracket (9) above the screw rod (6) via a support foot (12); an annular groove (11) is provided on the outer side of the synchronous bracket (9); and the annular structure (10) is rotatably mounted in the annular groove (11) of the synchronous bracket (9) via a plane bearing.

5. The CNC rotary welding platform according to claim 1 or 4, characterized in that: The gear ring (13) is installed at the bottom of the annular structure (10), and the meshing teeth of the gear ring (13) are installed downwards and mesh with the gears (5) installed with the plurality of screw rods.

6. The numerical control rotary welding platform according to claim 5, characterized in that: A driving member (7) is mounted on the end of the screw rod, and a jaw that engages with a chuck wrench is provided in the driving member (7).

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