CN104668861A - Welding clamping rotary working platform - Google Patents

Abstract

The embodiment of the invention discloses a welding and clamping rotary table, which includes a drive unit, a rotary unit, and several clamping and positioning units; the drive unit drives the rotary unit to rotate; the rotary unit includes Rotating rotary table; the clamping and positioning unit includes a clamping frame, a positioning rod, and a spring fixedly arranged on the rotary table, and the first nut, the second nut, and the spring cooperate to lock the positioning rod Tighten to the clamping frame. The invention can clamp square, rectangular, circular, elliptical and irregular-shaped welding parts, and multiple clamping units can be used together to clamp the outer surface or upper surface of the welding part according to the needs, so that the welding The clamping of parts is reliable, and it is not easy to cause unnecessary damage or deformation. It has the advantages of simple structure, wide adaptability, reliable work, low cost, etc., and has a wide range of use values.

Description

A welding clamping rotary table

technical field

The present invention relates to a welding auxiliary device, in particular to a welding clamping rotary table.

Background technique

At present, in the existing technology, the welding clamping device mainly adopts fixed special clamping, and one workpiece adopts one clamping. When the product changes, a new clamping must be designed and processed, which seriously affects the production efficiency, and the cost is high. Solder joints in multiple directions cannot be welded. When multiple solder joints need to be welded, multiple welding tongs need to be added. This method increases welding costs and labor costs, resulting in increased costs and is not conducive to improving competitiveness. On the other hand, the clamping device of the prior art also has the excessive rigidity of the clamping force used for positioning, which will inevitably damage or deform the work of the workers who need to process the outer surface. The positioning device has a complicated structure and is inconvenient to operate. It is also unavoidable that the positioning of the workpiece is not firm, and the processing effect is bad. The welding clamping device of the prior art is not conducive to reducing costs and promoting use.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a welding clamping rotary table. It can effectively clamp various welding parts and complete welding quickly.

In order to solve the above technical problems, an embodiment of the present invention provides a welding and clamping rotary table, including a drive unit, a rotary unit, and several clamping and positioning units;

The drive unit drives the rotary unit to rotate;

The rotary unit includes a rotary table driven to rotate by the drive unit;

The clamping and positioning unit includes a clamping frame fixed on the rotary table, a positioning rod, and a spring. The clamping frame is U-shaped, and two arms of the clamping frame are provided with holes. The front end of the positioning rod is threaded by self-tapping, and a first nut is screwed. The first nut cooperates with the spring to elastically install the positioning rod between the two arms of the clamping frame. The front end of the positioning rod is at the The two arms of the clamping frame are externally rotated with second nuts, and the first nut and the second nut cooperate to lock the positioning rod on the clamping frame.

Further, T-shaped slots arranged at a difference of 90 degrees or 120 degrees are arranged on the rotary table to connect with the clamping and positioning unit.

Furthermore, a plurality of parallel holes are arranged on the two arms of the clamping frame.

Furthermore, fastening holes are provided on the bottom of the clamping frame.

Furthermore, the rotary unit also includes a main shaft, a rolling bearing, a bearing seat, and a positioning ring. The main shaft is mounted on the bearing seat through the rolling bearing, and the positioning ring is fixed on the main shaft with set screws. The main shaft is fixed on the rotary table by screws.

Furthermore, the drive unit includes a motor, a reducer, and a connection plate, the motor drives the reducer to rotate, and is fixedly arranged on the support plate of the welding plate through the connection plate, and the bearing seat and the connection plate Fixed connection.

Furthermore, the connecting plate and the supporting plate are positioned by positioning pins.

Furthermore, the main shaft is connected with the reducer through a key.

Implementing the embodiment of the present invention has the following beneficial effects: the clamping and positioning unit of the present invention can clamp square, rectangular, circular, elliptical and irregularly shaped weldments, and multiple clamping units can be clamped as required With the use of clamping the outer surface or upper surface of the weldment, the weldment is clamped reliably, and it is not easy to cause unnecessary damage or deformation. It has the advantages of simple structure, wide adaptability, reliable operation, low cost, etc., and has a wide range of use values.

Description of drawings

Fig. 1 is the overall structure schematic diagram of the present invention;

Fig. 2 is a schematic structural view showing a section of A-A portion in Fig. 1;

Fig. 3 is a top view structural representation of the present invention;

Fig. 4 is a structural schematic diagram of two clamping and positioning units used together.

Detailed ways

In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

Referring to the schematic diagram of the overall structure of the present invention shown in FIG. 1 .

A welding and clamping rotary table according to an embodiment of the present invention includes a drive unit, a rotary unit, and several clamping and positioning units.

The driving unit is composed of motor 1, reducer 2 and connecting plate 21; the rotary unit is composed of main shaft 4, rolling bearing 9, bearing seat 8, positioning ring 10 and rotary table 22; the positioning and clamping unit is composed of clamping frame 15, positioning rod 12 and spring 13 etc. are formed.

The drive unit includes a motor 1, a reducer 2, and a connecting plate 21. The motor 1 directly drives the reducer 2 to rotate to provide power for the rotation of the workbench. The reducer 2 is fixed on the connecting plate 21 by a screw 5, and the screw 6 will Connecting plate 21 is fixed on the support plate 7 of welding machine, and is positioned with positioning pin 20, is convenient to dismounting.

In the rotary unit, it includes the main shaft 4, the rolling bearing 9, the bearing seat 8, the positioning ring 10, and the rotary table 22. The main shaft 4 is installed on the bearing seat 8 through the rolling bearing 9, and is fixed on the On the shaft, the axial movement of the main shaft 4 is prevented. The upper end of the main shaft 4 is connected with the rotary table 22 through the screw 11, and the lower end is connected with the reducer 2 through the key 3. At the same time, the bearing seat 8 is fixed on the connecting plate 21 through the screw 18 to reduce the speed. The rotation of the device can drive the rotary table 22 to rotate through the main shaft.

The positioning and clamping unit includes a clamping frame 15, a positioning rod 12, and a spring 13. The clamping frame 15 is U-shaped, and the two arms of the clamping frame 15 are U-shaped. A plurality of parallel holes 23 are arranged. The positioning rod 12 is installed between the holes on the clamping frame 15, and one end of the positioning rod 12 is threaded, and the first nut 14 is installed on the threaded end. The positioning and clamping unit has two functions of clamping and positioning. When a spring 13 is installed between one end of the first nut 14 and the clamping frame 15, under the action of the spring 13, the positioning rod 12 will pop out toward the direction of the first nut 14, Play a clamping role; when a second nut is added at the outer end of the positioning rod 12, the positioning rod is locked on the clamping frame 15, and the clamping frame plays a positioning role.

It should be noted that the positioning rod 12 can clamp the workpiece 16 in a more reliable pneumatic manner.

As shown in Figure 2, the bottom of the clamping frame 15 is an I-shaped structure 24, the I-shaped structure 24 cooperates with the T-shaped groove 25 of the rotary table 22, and the screw 19 is used to pass through the fastening hole provided on the bottom of the clamping frame The bottom of the T-shaped groove 25 is reversed, and the assembled shelf is fixed on the rotary table.

It should be noted that the rotary table 22 is provided with T-shaped slots 25 arranged with a difference of 90 degrees or 120 degrees to connect with the I-shaped structure 24 provided at the bottom of the clamping and positioning unit, as shown in FIG. 3 . When it is necessary to clamp square, rectangular and other workpieces, T-slots with a difference of 90 degrees are used. When it is necessary to clamp round and oval workpieces, T-slots with a difference of 120 degrees are used. When clamping, generally one or two of the multiple positioning and clamping combinations play the role of clamping, and the rest play the role of positioning.

It should also be explained that multiple positioning and clamping units are combined so as to fix the upper surface of the workpiece. As shown in the schematic diagram of the structure in FIG. 4 , the bottom of the clamping frame 15 can be installed on the bottom of another clamping frame. The opposite hole on the U-shaped arm makes the clamping direction of the clamping frame vertically downward to clamp the upper surface of the workpiece, and the installation position can be adjusted as required to adjust the high bottom or front and rear positions.

The above disclosure is only a preferred embodiment of the present invention, which certainly cannot limit the scope of rights of the present invention. Therefore, equivalent changes made according to the claims of the present invention still fall within the scope of the present invention.

Claims (8)

1. A welding and clamping rotary table, characterized in that it includes a drive unit, a rotary unit, and several clamping and positioning units; The drive unit drives the rotary unit to rotate; The rotary unit includes a rotary table driven to rotate by the drive unit; The clamping and positioning unit includes a clamping frame fixed on the rotary table, a positioning rod, and a spring. The clamping frame is U-shaped, and two arms of the clamping frame are provided with holes. The front end of the positioning rod is threaded by self-tapping, and a first nut is screwed. The first nut cooperates with the spring to elastically install the positioning rod between the two arms of the clamping frame. The front end of the positioning rod is at the The two arms of the clamping frame are externally rotated with second nuts, and the first nut and the second nut cooperate to lock the positioning rod on the clamping frame. 2. The welding and clamping rotary table according to claim 1, characterized in that, the rotary table is provided with a T-shaped slot with a difference of 90 degrees or 120 degrees and an I-shape arranged at the bottom of the clamping and positioning unit. Type structure connection. 3. The welding and clamping rotary table according to claim 2, wherein a plurality of parallel holes are arranged on the two arms of the clamping frame. 4. The welding and clamping rotary table according to claim 3, characterized in that, fastening holes are provided on the bottom of the clamping frame. 5. The welding and clamping rotary table according to any one of claims 1 to 4, characterized in that, the rotary unit also includes a main shaft, a rolling bearing, a bearing seat, and a positioning ring, and the main shaft is installed on the On the bearing seat, the positioning ring is fixed on the main shaft with set screws, and the main shaft is fixed on the rotary table by screws. 6. The welding and clamping rotary table according to claim 5, characterized in that, the drive unit includes a motor, a reducer, and a connecting plate, the motor drives the reducer to rotate, and is fixedly arranged on the On the supporting plate of the welding plate, the bearing seat is fixedly connected with the connecting plate. 7. The welding and clamping rotary table according to claim 6, characterized in that, the connecting plate and the supporting plate are positioned by positioning pins. 8. The welding and clamping rotary table according to claim 6, wherein the main shaft is connected with the reducer through a key.