Rotatable friction welding device

Abstract

The utility model discloses a rotatable friction welding device. The rotatable friction welding device comprises a fixed plate, a quick-change part, a rotary welding part and a welding guide assembly, the quick-change component is connected to one side of the fixing plate and used for being externally connected with a robot, the welding guide assembly is connected to the other side, opposite to the side connected with the quick-change component, of the fixing plate, the rotary welding component is connected to the welding guide assembly, and the welding guide assembly is used for driving the rotary welding component to move. The rotary welding part is used for clamping a workpiece and welding the clamped workpiece to another workpiece in a friction welding mode under the cooperation of the welding guide assembly. The welding device is connected with the robot through the quick-change part, the multidirectional working capacity, universality, flexibility and utilization rate of the welding device can be higher, the workpiece is directly driven to rotate through the rotary welding part to be welded with another workpiece in a friction welding mode, the time occupied by replacing a welding head is saved, and the machining efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding, in particular to a rotatable friction welding device. Background Art

[0002] Plastic welding is widely used in various processing fields, especially in the processing of automotive plastic parts. In the existing technology, the welding device is basically fixedly installed on a multi-axis motion mechanism, which drives the welding device to achieve multi-axis motion. When welding complex products, each welding device is only responsible for welding the product in one position or one orientation. For products with small batches and complex welding positions and multiple orientations, the existing welding method requires a large number of welding devices, has low utilization rate, and its versatility and flexibility need to be improved.

[0003] On the other hand, the existing welding device requires the use of a welding head, and the replacement process of the welding head is also relatively troublesome, which further reduces the processing efficiency.

[0004] Therefore, the existing technology has defects and needs to be improved. Utility Model Content

[0005] In view of more than one problem existing in the prior art, the present invention provides a rotatable friction welding device, which is assembled on a robot when in use and is used to complete the welding work of plastic products.

[0006] The technical solution of the present utility model is as follows: A rotatable friction welding device comprises a fixed plate, a quick-change component, a rotary welding component and a welding guide assembly; the quick-change component is connected to one side of the fixed plate and is used for an external robot, and the quick-change component enables the fixed plate to achieve multi-directional movement under the drive of the external robot; the welding guide assembly is connected to the other side of the fixed plate opposite to the side connected to the quick-change component, the rotary welding component is connected to the welding guide assembly, and the welding guide assembly is used to drive the rotary welding component to achieve reciprocating motion along a preset path, the rotary welding component is used to clamp the workpiece and to weld the clamped workpiece to another workpiece by friction welding with the cooperation of the welding guide assembly, thereby realizing the welding work of plastic products.

[0007] Furthermore, the rotary welding component includes a drive motor, a transmission spindle and a workpiece fixture; the drive motor is connected to the rotary welding component, one end of the transmission spindle is connected to the output shaft of the drive motor, and the other end of the transmission spindle is connected to the workpiece fixture, the workpiece fixture is used to clamp the workpiece, and the transmission spindle is used to rotate the workpiece fixture under the drive of the drive motor;

[0008] The driving motor is a servo motor;

[0009] The transmission main shaft is also surrounded by a protective cover, which protects the transmission main shaft.

[0010] Furthermore, the quick-change component includes a quick-change disc; the quick-change disc is connected to one side of the fixed plate and is used to be externally connected to the end output part of the robot.

[0011] Furthermore, the welding guide assembly includes a driving cylinder, a guide rail and a guide base; the guide rail is connected to the other side of the fixed plate opposite to the side connected to the quick-change component, the guide base is slidably connected to the guide rail, the driving cylinder is connected to the fixed plate on one side of the guide base, and its output shaft is fixedly connected to the guide base. The driving cylinder drives the guide base to reciprocate along the guide rail, and the rotating welding component is connected to the guide base and can move in the same direction as the guide base.

[0012] By adopting the above solution, the utility model has the following beneficial effects:

[0013] 1. The welding device is connected to the robot through quick-change components, which can realize the multi-directional working ability of the welding device, reduce the number of welding devices required for welding complex products, and improve the versatility, flexibility and utilization rate of the welding device;

[0014] 2. The workpiece is directly driven to rotate by the rotating welding component and welded to another workpiece by friction welding, which saves the time taken to replace the welding head, improves time utilization, improves processing efficiency, and helps to break through production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a rotatable friction welding device provided in one embodiment of the present invention;

[0016] Figure 2 This is a schematic structural diagram of a rotatable friction welding device provided by an embodiment of the present invention from another angle. DETAILED DESCRIPTION

[0017] In order to reduce the number of welding devices used in the process of plastic parts welding, improve the versatility, utilization and flexibility of welding devices, and improve the processing efficiency of plastic welding, the utility model provides a rotatable friction welding device, which is assembled on a robot when used to complete the welding of plastic products. The implementation method is referenced Figure 1 and Figure 2In one embodiment, the rotatable friction welding device includes a fixed plate 1, a quick-change component 2, a rotating welding component 3 and a welding guide assembly 4; the quick-change component 2 is connected to one side of the fixed plate 1 and is used to connect to the terminal output portion of the external robot (i.e., the output end of the robot). The quick-change component 2 can enable the fixed plate 1 to achieve multi-dimensional movement (or multi-directional movement) under the drive of the external robot, and the quick-change component 2 can realize the rapid connection and disassembly of the rotatable friction welding device and the robot, which makes the assembly and disassembly simpler and more convenient, shortens the installation and disassembly time, and can improve the processing efficiency; the welding guide assembly 4 is connected to the fixed plate 1 and is connected to the quick-change component 2. On the other side opposite to one side, the rotary welding component 3 is connected to the welding guide assembly 4. The rotary welding component 3 can move under the drive of the welding guide assembly 4 and perform reciprocating motion according to usage requirements. Its motion trajectory is a straight line. The rotary welding component 3 can drive the workpiece clamped thereon to rotate so that the workpiece can be friction welded with another workpiece. That is to say, the welding guide assembly 4 is used to drive the rotary welding component 3 to achieve reciprocating motion along a preset path. The rotary welding component 3 is used to clamp the workpiece and to weld the clamped workpiece to another workpiece by friction welding with the cooperation of the welding guide assembly 4, thereby realizing the welding work of the plastic product.

[0018] like Figure 1 and Figure 2 As shown, a specific structure of the quick-change component 2 includes a quick-change disk 21, which is connected to one side of the fixed plate 1 and is used to externally connect the end output part of the robot. In actual application, the rotatable friction welding device can be quickly connected and disassembled with the robot through the quick-change disk 21, which can realize the multi-directional working ability of the rotatable friction welding device and improve the versatility of the welding device.

[0019] The quick-change disk 21 is provided with an air circuit interface and an electric circuit interface for connecting the air circuit and electric circuit of the robot.

[0020] The quick-change disc 21 of this example of the present invention can be fixedly mounted on the fixed plate 1 by welding, riveting, etc. during assembly, and can also be detachably mounted on the fixed plate 1 by connecting parts such as screws. The assembly method in which the quick-change disc 21 is detachably mounted on the fixed plate 1 makes it easier to disassemble if the quick-change disc 21 fails during use and needs to be repaired or replaced, which can improve maintenance efficiency. Therefore, detachably connecting the quick-change disc 21 to one side of the fixed plate 1 is a preferred embodiment.

[0021] like Figure 1 and Figure 2As shown, a specific structure of the welding guide assembly 4 includes a driving cylinder 41, a guide rail 42 and a guide base 43; the guide rail 42 is connected to the fixed plate 1 on the other side opposite to the side connected to the quick-change component 2, and the guide base 43 is slidably connected to the guide rail 42. In fact, the guide base 43 is slidably connected to the guide rail 42 by at least one slider, so that it can reciprocate along the guide rail 42 under the action of external force. The driving cylinder 41 is connected to the fixed plate 1 on one side of the guide base 43, and its output shaft is fixedly connected to the guide base 43. The driving cylinder 41 drives the guide base 43 to reciprocate along the guide rail 42. The rotary welding component 3 is connected to the guide base 43 and can move in the same direction as the guide base 43. It reciprocates along a preset path according to usage requirements, so that the rotary welding component 3 can weld the clamped workpiece to another workpiece by friction welding.

[0022] In other embodiments, the welding guide assembly 4 may also use a linear motor, a screw motor transmission mechanism or other structures to drive the rotating welding component 3 to perform reciprocating motion along a preset path, thereby achieving the same function. Therefore, the structure of the welding guide assembly 4 is not limited to one. The present invention only shows a preferred embodiment, and the remaining embodiments are not described in detail.

[0023] like Figure 1 and Figure 2As shown, a specific structure of the rotary welding component 3 includes a driving motor 31, a transmission spindle 32 and a workpiece clamp 33; the driving motor 31 is connected to the rotary welding component 3, and specifically, the driving motor 31 is preferably a servo motor. In fact, the driving motor 31 is connected to the guide base 43 of the rotary welding component 3, and moves in the same direction as the guide base 43 moves. One end of the transmission spindle 32 is connected to the output shaft of the driving motor 31. In fact, one end of the transmission spindle 32 is connected to the output shaft of the driving motor 31 through a coupling, and the other end of the transmission spindle 32 is connected to the workpiece clamp 33. The workpiece clamp 33 is used to clamp the workpiece. The transmission spindle 32 can rotate the workpiece clamp 33 under the drive of the driving motor 31. When a workpiece is clamped on the workpiece clamp 33, the workpiece clamp 33 can be made to rotate under the action of the driving cylinder 41. The workpiece clamped on the workpiece clamp 33 is fitted with another workpiece, and under the action of the drive motor 31, the workpiece clamped on the workpiece clamp 33 can be welded to the other workpiece by friction welding to complete the welding work of the plastic product. That is to say, in actual application, a workpiece is first clamped on the workpiece clamp 33, and then the workpiece on the workpiece clamp 33 is moved to the processing area and fitted with another workpiece through the action of the driving cylinder 41, and then the workpiece on the workpiece clamp 33 is rotated through the action of the driving motor 31, so that the workpiece is welded to the other workpiece by friction welding, thereby completing the welding work of the plastic product by friction welding. There is no need to replace the welding head during the welding process, which saves the time occupied by replacing the welding head, has higher time utilization, improves processing efficiency, and helps to break through production capacity.

[0024] A protective cover 34 is provided around the transmission main shaft 32 , and the protective cover 34 is rotatably connected to the transmission main shaft 32 , so that the protective cover 34 protects the transmission main shaft 32 .

[0025] In other embodiments, the rotary welding component 3 can also use a structure composed of a drive motor 31, a reducer, a transmission rod, and a workpiece clamp 33 connected in sequence to clamp the workpiece and drive the clamped workpiece to rotate, so that the clamped workpiece can be welded to another workpiece by friction welding, and the same function can be achieved. Therefore, the structure of the rotary welding component 3 is not limited to one. The present utility model only shows a preferred embodiment, and the other embodiments are not repeated.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotatable friction welding device, characterized in that: It includes a fixed plate, a quick-change component, a rotary welding component and a welding guide assembly; the quick-change component is connected to one side of the fixed plate and is used for an external robot, and the quick-change component enables the fixed plate to achieve multi-directional movement under the drive of the external robot; the welding guide assembly is connected to the other side of the fixed plate opposite to the side connected to the quick-change component, the rotary welding component is connected to the welding guide assembly, and the welding guide assembly is used to drive the rotary welding component to achieve reciprocating motion along a preset path, the rotary welding component is used to clamp the workpiece and to weld the clamped workpiece to another workpiece by friction welding with the cooperation of the welding guide assembly, thereby realizing the welding work of plastic products.

2. A rotatable friction welding device according to claim 1, characterized in that: The rotary welding component includes a driving motor, a transmission spindle and a workpiece fixture; the driving motor is connected to the rotary welding component, one end of the transmission spindle is connected to the output shaft of the driving motor, and the other end of the transmission spindle is connected to the workpiece fixture, the workpiece fixture is used to clamp the workpiece, and the transmission spindle is used to rotate the workpiece fixture under the drive of the driving motor.

3. The rotatable friction welding device according to claim 1, characterized in that: The quick-change component includes a quick-change disc; the quick-change disc is connected to one side of the fixed plate and is used for externally connecting to the end output part of the robot.

4. The rotatable friction welding device according to claim 1, characterized in that: The welding guide assembly includes a driving cylinder, a guide rail and a guide base; the guide rail is connected to the other side of the fixed plate opposite to the side connected to the quick-change component, and the guide base is slidably connected to the guide rail. The driving cylinder is connected to the fixed plate on one side of the guide base, and its output shaft is fixedly connected to the guide base. The driving cylinder drives the guide base to reciprocate along the guide rail, and the rotating welding component is connected to the guide base and can move in the same direction as the guide base.

5. The rotatable friction welding device according to claim 2, characterized in that: The driving motor is a servo motor.

6. The rotatable friction welding device according to claim 2, characterized in that: The transmission main shaft is also surrounded by a protective cover, which protects the transmission main shaft.

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