An anti-fooling automatic fixture for laser welding of water valves

Abstract

The present invention discloses an anti-fool laser water valve welding automatic fixture, which includes a base. The left side of the top of the base is fixedly connected by bolts to a gearbox. The right side of the gearbox is rotatably connected to a rotating seat, and the right side of the rotating seat is fixedly connected by a connecting rod to a rotating disk. The right side of the rotating disk is fixedly connected to a mounting seat, and brackets are fixedly connected by bolts on both the front and rear sides of the mounting seat. The present invention relates to the technical field of fixtures. This anti-fool laser water valve welding automatic fixture can connect the valve to be welded with the pipeline through the cooperation of the mounting seat, brackets and positioning frames. Then, with the cooperation of the clamping plate and the positioning shaft for positioning and clamping, fixation can be achieved quickly and conveniently. Moreover, the part between the rotating seat and the positioning shaft can rotate, thereby driving the workpiece to rotate 360°, realizing all-round welding. The repeat accuracy of the rotating platform is reliable. In cooperation with the laser welding method, the welding speed for complex shapes is fast and the accuracy is high.

Description

Technical Field

[0001] The present invention relates to the technical field of jigs, and specifically to an anti-fooling automatic jig for laser water valve welding. Background Art

[0002] A jig refers to a device used in the mechanical manufacturing process to fix the processing object, making it occupy the correct position to receive construction or inspection, also known as a fixture. Broadly speaking, any device used in any process of the technological process to quickly, conveniently, and safely install the workpiece can be called a jig. A jig usually consists of positioning elements (to determine the correct position of the workpiece in the jig), a clamping device, a tool alignment and guiding element (to determine the relative position between the tool and the workpiece or guide the tool direction), a indexing device (to enable the workpiece to complete the processing of several workstations in one installation, including two categories: rotary indexing devices and linear moving indexing devices), connecting elements, and a jig body (the jig base), etc.

[0003] Most of the existing welding of plastic products still uses traditional plastic welding methods. Traditional plastic welding refers to a connection method that uses heat to simultaneously melt the contact surfaces of two plastic parts, so as to combine them into a whole. It is only applicable to the connection of thermoplastic plastics, with low welding efficiency. For workpieces with complex shapes such as three-way and four-way water valves, there are requirements for welding angles and welding airtightness. It is very difficult to achieve precise welding with traditional welding methods and manual operations. Moreover, the existing welding auxiliary jigs are troublesome to operate and only fix the workpiece. For the circumferential welding of pipe-like parts, traditional plastic welding methods are generally still used, with low efficiency and poor welding quality. Summary of the Invention

[0004] (1) Technical Problems to be Solved

[0005] Aiming at the deficiencies of the prior art, the present invention provides an anti-fooling automatic jig for laser water valve welding, which solves the problems that most of the existing welding of plastic products still uses traditional plastic welding methods, which are only applicable to the connection of thermoplastic plastics, with low welding efficiency. For workpieces with complex shapes such as three-way and four-way water valves, there are requirements for welding angles and welding airtightness. It is very difficult to achieve precise welding with traditional welding methods and manual operations. Moreover, the existing welding auxiliary jigs are troublesome to operate and only fix the workpiece. For the circumferential welding of pipe-like parts, traditional plastic welding methods are generally still used, with low efficiency and poor welding quality.

[0006] (2) Technical Solutions

[0007] To achieve the above object, the present invention is realized through the following technical solutions: An anti-fooling automatic fixture for laser water valve welding, comprising a base, on the left side of the top of the base, a gearbox is fixedly connected by bolts, on the right side of the gearbox, a rotating seat is rotatably connected, and on the right side of the rotating seat, a rotating disk is fixedly connected by a connecting rod, on the right side of the rotating disk, a mounting seat is fixedly connected, and on the front and rear sides of the mounting seat, brackets are fixedly connected by bolts, on the front and rear sides of the middle of the top of the base, side frames are fixedly connected, and between the tops of the two side frames, a support plate is fixedly connected, on the top of the support plate, a sliding frame is slidably connected, and on the left side of the sliding frame, a positioning frame is fixedly connected by bolts, and a four-way water valve is movably connected between the positioning frame, the bracket and the mounting seat, on the right side of the top of the base, a clamping plate is slidably connected, and on the top of the left side of the clamping plate, a positioning shaft is rotatably connected.

[0008] Preferably, in the middle of the top of the support plate, a first slide rail is fixedly connected, at the bottom of the sliding frame, a first slide sleeve is fixedly connected, and the inner surface of the first slide sleeve is slidably connected with the outer surface of the first slide rail.

[0009] Preferably, on the right side of the top of the support plate, a first air cylinder is fixedly connected, and the left end of the first air cylinder is fixedly connected with the right side of the sliding frame.

[0010] Preferably, on the top of the support plate and on the front and rear sides of the first slide rail and on the left and right sides of the sliding frame, T-shaped limit blocks are fixedly connected, inside the positioning frame, an arc-shaped groove adapted to the bolt is opened, and the center of the arc-shaped groove is coaxial with the output shaft of the gearbox.

[0011] Preferably, in the middle of the right side of the top of the base, a second slide rail is fixedly connected, and at the bottom of the clamping plate, a second slide sleeve slidably connected with the second slide rail is fixedly connected.

[0012] Preferably, in the middle of the top of the base and below the support plate, a second air cylinder is fixedly connected, and the right end of the second air cylinder is fixedly connected with the bottom of the left side of the clamping plate.

[0013] Preferably, on the top of the mounting seat, a right-angle pressing plate is fixedly connected by bolts, and on the bottom of the right-angle pressing plate, a semi-circular bayonet adapted to the four-way water valve pipeline is opened.

[0014] Preferably, on the top of the left side of the gearbox, a servo motor is fixedly connected, and the left end of the output shaft of the servo motor is fixedly connected with the center of the driving gear inside the gearbox.

[0015] (III) Beneficial effects

[0016] The present invention provides an anti-fooling automatic fixture for laser water valve welding. Compared with the prior art, it has the following beneficial effects:

[0017] (1) The anti-fooling automatic fixture for laser welding of water valves is provided with a rotating seat rotatably connected to the right side of the gearbox. A rotating disc is fixedly connected to the right side of the rotating seat through a connecting rod. An installation seat is fixedly connected to the right side of the rotating disc. Brackets are fixedly connected to the front and rear sides of the installation seat through bolts. Side frames are fixedly connected to the front and rear sides of the middle of the top of the base. A support plate is fixedly connected between the tops of the two side frames. A sliding frame is slidably connected to the top of the support plate. A positioning frame is fixedly connected to the left side of the sliding frame through bolts. A four-way water valve is movably connected between the positioning frame, the brackets and the installation seat. A clamping plate is slidably connected to the right side of the top of the base. A positioning shaft is rotatably connected to the top of the left side of the clamping plate. By setting the cooperation of the installation seat, the brackets and the positioning frame, the valve to be welded can be connected to the pipeline. Then, with the cooperation of the clamping plate and the positioning shaft for positioning and clamping, fixation can be achieved quickly and conveniently. Moreover, the part between the rotating seat and the positioning shaft can rotate, so that the workpiece can be driven to rotate 360°, realizing all-round welding. The repeated precision of the rotating platform is reliable. Combined with the laser welding method, the welding speed for complex shapes is fast and the precision is high.

[0018] (2) The anti-fooling automatic fixture for laser welding of water valves is provided with a first slide rail fixedly connected to the middle of the top of the support plate. A first sliding sleeve is fixedly connected to the bottom of the sliding frame. The inner surface of the first sliding sleeve is slidably connected to the outer surface of the first slide rail. A first cylinder is fixedly connected to the right side of the top of the support plate. The left end of the first cylinder is fixedly connected to the right side of the sliding frame. A second slide rail is fixedly connected to the middle of the right side of the top of the base. A second sliding sleeve slidably connected to the second slide rail is fixedly connected to the bottom of the clamping plate. A second cylinder is fixedly connected to the middle of the top of the base and below the support plate. The right end of the second cylinder is fixedly connected to the bottom of the left side of the clamping plate. With the precise cooperation of the slide rails, the accuracy and reliability of positioning are ensured, and it has anti-fooling performance. Moreover, during fixation, the first cylinder and the second cylinder can be used to achieve automatic fixation, and the automated operation greatly improves the work efficiency.

[0019] (3) The anti-fooling automatic fixture for laser welding of water valves is provided with an arc-shaped groove adapted to the bolt inside the positioning frame, and the center of the arc-shaped groove is coaxial with the output shaft of the gearbox. By setting the arc-shaped groove, the positioning frame can be adjusted and fixed after moving to an angle, so that the rotation angle of the pipeline to be welded engaged therein can be adjusted, and then the pipeline can be welded to the valve at a specified angle. The operation is simple and can be adjusted flexibly. Description of the Drawings

[0020] Figure 1 is the front view of the structure of the present invention;

[0021] Figure 2 is the three-dimensional view of the top structure of the support plate of the present invention;

[0022] Figure 3It is the right view of the positioning frame structure of the present invention;

[0023] Figure 4 It is the three-dimensional view of the right-angle pressing plate of the present invention.

[0024] In the figure, 1 - base, 2 - gearbox, 3 - rotating seat, 4 - rotating disc, 5 - mounting seat, 6 - bracket, 7 - side frame, 8 - support plate, 9 - sliding frame, 10 - positioning frame, 11 - servo motor, 12 - clamping plate, 13 - positioning shaft, 14 - first slide rail, 15 - first sliding sleeve, 16 - first cylinder, 17 - T-shaped limit block, 18 - arc groove, 19 - second slide rail, 20 - second sliding sleeve, 21 - second cylinder, 22 - right-angle pressing plate, 23 - semi-circular bayonet. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0026] Please refer to Figures 1-4, an embodiment of the present invention provides a technical solution: an anti-fooling automatic fixture for laser water valve welding, including a base 1. In the middle of the right side of the top of the base 1, a second slide rail 19 is fixedly connected. And the bottom of the clamping plate 12 is fixedly connected with a second sliding sleeve 20 slidably connected to the second slide rail 19. In the middle of the top of the base 1 and below the support plate 8, a second cylinder 21 is fixedly connected. And the right end of the second cylinder 21 is fixedly connected to the bottom left side of the clamping plate 12. By using the precise cooperation of the slide rail and the slide rail, the accuracy and reliability of positioning are ensured, with anti-fooling performance. And when fixing, the first cylinder 16 can be used in cooperation with the second cylinder 21 to achieve automatic fixing. The automatic operation greatly improves the work efficiency. On the left side of the top of the base 1, a gearbox 2 is fixedly connected by bolts. On the top left side of the gearbox 2, a servo motor 11 is fixedly connected. And the left end of the output shaft of the servo motor 11 is fixedly connected to the axis of the driving gear in the gearbox 2. On the right side of the gearbox 2, a rotating seat 3 is rotatably connected. And the right side of the rotating seat 3 is fixedly connected with a rotating disc 4 through a connecting rod. On the right side of the rotating disc 4, a mounting seat 5 is fixedly connected. A longitudinal positioning groove adapted to the pipeline is opened on the right side of the mounting seat 5, and the bottom of the positioning groove is a semi-circular arc surface. On the front and rear sides of the mounting seat 5, brackets 6 are fixedly connected by bolts. On the top of the bracket 6, a semi-circular arc surface adapted to the pipeline is opened. On the top of the mounting seat 5, a right-angle pressing plate 22 is fixedly connected by bolts. On the bottom of the right-angle pressing plate 22, a semi-circular bayonet 23 adapted to the four-way water valve pipeline is opened. On the front and rear sides of the middle of the top of the base 1, side frames 7 are fixedly connected. And between the tops of the two side frames 7, a support plate 8 is fixedly connected. In the middle of the top of the support plate 8, a first slide rail 14 is fixedly connected. The bottom of the sliding frame 9 is fixedly connected with a first sliding sleeve 15, and the inner surface of the first sliding sleeve 15 is slidably connected to the outer surface of the first slide rail 14. On the right side of the top of the support plate 8, a first cylinder 16 is fixedly connected. And the left end of the first cylinder 16 is fixedly connected to the right side of the sliding frame 9. On the top of the support plate 8 and on the front and rear sides of the first slide rail 14 and on the left and right sides of the sliding frame 9, T-shaped limit blocks 17 are fixedly connected. The T-shaped limit blocks 17 are used to limit the moving range of the sliding frame 9. An arc-shaped groove 18 adapted to the bolt is opened inside the positioning frame 10, and the center of the arc-shaped groove 18 is coaxial with the output shaft of the gearbox 2. By setting the arc-shaped groove 18, the positioning frame 10 can be adjusted to a moving angle and then fixed, so as to adjust the rotation angle of the pipeline to be welded clamped therein. Furthermore, the pipeline can be welded to the valve at a specified angle. The operation is simple and can be adjusted flexibly. The sliding frame 9 is slidably connected to the top of the support plate 8, and the left side of the sliding frame 9 is fixedly connected with a positioning frame 10 by bolts. On the side surface of the inner wall of the positioning frame 10, a positioning groove adapted to the surface of the pipeline to be welded is opened. And a four-way water valve is movably connected between the positioning frame 10, the bracket 6 and the mounting seat 11. On the right side of the top of the base 1, a clamping plate 12 is slidably connected. And the top left side of the clamping plate 12 is rotatably connected with a positioning shaft 13. By setting the cooperation of the mounting seat 5, the bracket 6 and the positioning frame 10,The valve to be welded can be connected to the pipeline, and then clamped and positioned quickly and conveniently by using the clamping plate 12 and the positioning shaft 13. The part between the rotating seat 3 and the positioning shaft 13 can rotate, so as to drive the workpiece to rotate 360°, realizing all-round welding. The positioning is accurate and reliable, the repeatability accuracy of the rotating platform is reliable. Combined with the laser welding method, the welding speed of complex shapes is fast and the accuracy is high.

[0027] Meanwhile, the content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0028] During use, connect the first cylinder 16 and the second cylinder 21 to the air pump respectively, connect the servo motor 11 to the air pump control device, then place the valve body on the mounting seat 5 and the bracket 6, insert the pipeline to be welded into the positioning frame 10, and connect the left end of the pipeline to the right side of the valve body. According to the angle of the pipeline to be welded, loosen the bolt on the positioning frame 10, and then rotate the positioning frame 10 to rotate the pipeline to an appropriate angle. Then start the air pump of the second cylinder 21 to make the second cylinder 21 pull the clamping plate 12 to the left, insert the positioning shaft 13 into the pipeline, and the disc on the surface of the positioning shaft 13 presses on the right end of the pipeline. Then start the air pump of the first cylinder 16 to make the first cylinder 16 push the sliding frame 9 and the positioning frame 10 to the left, so that the part of the positioning frame 10 that is engaged and positioned with the pipeline to be welded disengages and moves to the smooth part of the pipeline. Then start the laser welding assembly to weld the connection between the pipeline and the valve, and at the same time start the servo motor 11 to rotate slowly. After being speed-changed by the gearbox 2, it drives the rotating seat 3, the rotating disc 4, the mounting seat 5, the bracket 6, and the overall structure of the valve and the pipeline to rotate slowly, realizing 360° welding of the welded part.

[0029] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0030] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An anti-fooling automatic fixture for laser water valve welding, comprising a base (1), wherein the left side of the top of the base (1) is fixedly connected by bolts to a gearbox (2). Characterized in that: The right side of the gearbox (2) is rotatably connected to a rotating seat (3), and the right side of the rotating seat (3) is fixedly connected by a connecting rod to a rotating disc (4). The right side of the rotating disc (4) is fixedly connected to a mounting seat (5), and brackets (6) are fixedly connected by bolts on both the front and rear sides of the mounting seat (5). On both the front and rear sides of the middle of the top of the base (1), side frames (7) are fixedly connected, and a support plate (8) is fixedly connected between the tops of the two side frames (7). A sliding frame (9) is slidably connected to the top of the support plate (8), and a positioning frame (10) is fixedly connected by bolts to the left side of the sliding frame (9). A four-way water valve is movably connected between the positioning frame (10), the bracket (6) and the mounting seat (11). A clamping plate (12) is slidably connected to the right side of the top of the base (1), and a positioning shaft (13) is rotatably connected to the top of the left side of the clamping plate (12). In the middle of the top of the support plate (8), a first sliding rail (14) is fixedly connected. A first sliding sleeve (15) is fixedly connected to the bottom of the sliding frame (9), and the inner surface of the first sliding sleeve (15) is slidably connected to the outer surface of the first sliding rail (14). On the right side of the top of the support plate (8), a first air cylinder (16) is fixedly connected, and the left end of the first air cylinder (16) is fixedly connected to the right side of the sliding frame (9). On the top of the support plate (8) and on both the front and rear sides of the first sliding rail (14) and on both the left and right sides of the sliding frame (9), T-shaped limit blocks (17) are fixedly connected. An arc-shaped groove (18) adapted to the bolt is formed inside the positioning frame (10), and the center of the arc-shaped groove (18) is coaxial with the output shaft of the gearbox (2). In the middle of the right side of the top of the base (1), a second sliding rail (19) is fixedly connected, and a second sliding sleeve (20) slidably connected to the second sliding rail (19) is fixedly connected to the bottom of the clamping plate (12). In the middle of the top of the base (1) and below the support plate (8), a second air cylinder (21) is fixedly connected, and the right end of the second air cylinder (21) is fixedly connected to the bottom of the left side of the clamping plate (12).

2. The anti-fooling automatic fixture for laser water valve welding according to claim 1, Characterized in that: A right-angle pressing plate (22) is fixedly connected by bolts to the top of the mounting seat (5), and a semi-circular bayonet (23) adapted to the four-way water valve pipeline is formed at the bottom of the right-angle pressing plate (22).

3. The anti-fooling automatic fixture for laser water valve welding according to claim 1, Characterized in that: A servo motor (11) is fixedly connected to the top of the left side of the gearbox (2), and the left end of the output shaft of the servo motor (11) is fixedly connected to the axis of the driving gear inside the gearbox (2).

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