Connecting flange pneumatic assembly welding tool and use method

Abstract

The present application belongs to the technical field of welding tooling, and particularly relates to a connecting flange pneumatic assembly butt welding tooling and a use method, comprising a base, a jacking device arranged in the middle of the base, the jacking device comprising a fixed end and a movable end, the movable end of the jacking device being provided with a supporting plate, the supporting plate being provided with a circular hole, the supporting plate being provided with a positioning pin arranged in a ring around the center of the circular hole, the upper surface of the base being further provided with a lower ring plate pressing device arranged in a ring and a rib plate positioning device arranged in a ring, and the supporting plate located at the center of the circular hole being provided with an upper ring plate pressing device. The tooling utilizes electromagnetic valve control of cylinder action, greatly reduces the labor intensity of workers, and improves the production efficiency; the freedom of each workpiece can be limited and the repeated positioning precision is high, so that the consistency of products can be ensured.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of welding tooling, and particularly relates to a connecting flange pneumatic assembly welding tooling and a use method. BACKGROUND

[0002] Connecting flange workpieces are commonly used in the connecting parts of pipelines or cylindrical structural members and are widely used in various industries. The current production mode is to manually position the parts on a simple tooling and manually spot weld, and after assembly is completed, welding is performed. Due to poor positioning accuracy of the tooling, consistency of the products after welding cannot be guaranteed, and the workers are inconvenient to operate, the labor intensity is large, and the production efficiency is low. SUMMARY

[0003] In order to overcome the deficiencies of the prior art, the present application provides a connecting flange pneumatic assembly welding tooling and a use method, which greatly reduces the labor intensity of workers and improves the production efficiency.

[0004] The present application is achieved by the following technical scheme: a connecting flange pneumatic assembly welding tooling, comprising a base, a jacking device is arranged in the middle of the base, the jacking device comprises a fixed end and a movable end, the movable end of the jacking device is provided with a supporting plate, the supporting plate is provided with a circular hole, a plurality of positioning pins arranged in a ring around the center of the circular hole are arranged on the supporting plate, a lower ring plate pressing device arranged in a ring and a rib plate positioning device arranged in a ring are further arranged on the upper surface of the base, and an upper ring plate pressing device is arranged on the supporting plate at the center of the circular hole.

[0005] Further, the base comprises a bottom plate and a top plate with a circular through hole, the bottom plate and the top plate are fixedly connected through a stand column, and the fixed end of the jacking device is fixedly connected with the bottom plate.

[0006] Further, the lower ring plate pressing device comprises a rotary pressing cylinder and a pressing head, the telescopic part of the rotary pressing cylinder is connected with a pressing arm, and the pressing head is fixed at one end of the pressing arm away from the rotary pressing cylinder.

[0007] Further, the pressing head is threadedly connected with the pressing arm.

[0008] Further, the rib plate positioning device comprises a telescopic cylinder and a connecting block, the connecting block is arranged on the telescopic part of the telescopic cylinder, the connecting block is W-shaped, and a magnet is inserted into the slot on each side of the connecting block.

[0009] Further, the upper ring plate pressing device comprises a stretching cylinder and a pressing block, two pressing blocks are movably hinged to the telescopic part of the stretching cylinder, a connecting seat is fixed to the end of the stretching cylinder on one side of the telescopic part, one connecting rod is hinged to the connecting seat on each side of the telescopic part of the stretching cylinder, and the other end of the connecting rod is hinged to the corresponding pressing block.

[0010] The application also provides a method for using the connecting flange pneumatic assembly and welding tool, which comprises the connecting flange pneumatic assembly, and the connecting flange comprises a lower ring plate, an upper ring plate, a steel plate ring and a rib plate, the lower ring plate and the upper ring plate are respectively welded on the two side end faces of the steel plate ring, and the rib plate is welded and fixed around the steel plate ring and with the lower ring plate and the upper ring plate, and the method for using the tool to weld the connecting flange is as follows.

[0011] I. The lower ring plate centering positioning pin is placed on the support plate, and the lower ring plate pressing device is actuated to press the lower ring plate;

[0012] II. The steel plate ring is placed, and then the rib plate positioning device is extended, and the rib plate is placed in the clamping hand of the rib plate positioning device;

[0013] III. After the rib plate is placed, the upper ring plate is placed above the rib plate;

[0014] IV. The components of the connecting flange are spot welded, after the spot welding is completed, the lower ring plate pressing device is loosened, the rib plate positioning device is retracted, the jacking device is actuated to jacking the support plate carrying the connecting flange upward until all the welds of the connecting flange are exposed, so that the connecting flange is full-welded;

[0015] V. After the welding is completed, the upper ring plate pressing device is loosened, the connecting flange is taken away, the jacking device is lowered, and the welding of the next connecting flange is carried out.

[0016] The application has the advantages that the tool utilizes the electromagnetic valve to control the action of the cylinder, greatly reduces the labor intensity of workers, and improves the production efficiency; the freedom of each workpiece can be limited, the repeated positioning accuracy is high, and the consistency of products can be ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the application;

[0018] Figure 2 It is a top view of the application;

[0019] Figure 3 It is a left view of the application;

[0020] Figure 4 It is a perspective view of the application;

[0021] Figure 5 It is a structural schematic view of the connecting flange;

[0022] Figure 6 It is a clamping schematic view when the connecting flange is spot welded;

[0023] Figure 7 It is a structural schematic view when the connecting flange is full-welded;

[0024] Figure 8 Structure diagram of lower ring plate pressing device of the application;

[0025] Figure 9 Structure diagram of muscle plate positioning device of the application;

[0026] Figure 10 Structure diagram of upper ring plate pressing device of the application;

[0027] In the figure, 1, support plate, 1-1, round hole, 2, positioning pin, 3, lower ring plate pressing device, 3-1, rotary pressing cylinder, 3-2, pressing arm, 3-3, pressing head, 4, muscle plate positioning device, 4-1, telescopic cylinder, 4-2, connecting block, 4-3, magnet, 5, upper ring plate pressing device, 5-1, stretching cylinder, 5-2, connecting seat, 5-3, connecting rod, 5-4, pressing block, 6, jacking device, 7, base, 7-1, bottom plate, 7-2, top plate, 7-3, stand, 8-1, lower ring plate, 8-2, steel ring, 8-3, muscle plate, 8-4, upper ring plate, 9, cylinder limiting block. DETAILED DESCRIPTION

[0028] The application is further illustrated below according to the drawings and examples.

[0029] As Figures 1 to 10 shown, a connecting flange pneumatic assembly butt welding tool includes a base 7, the middle part of the base 7 is provided with a jacking device 6, the jacking device 6 includes a fixed end and a movable end, the movable end of the jacking device 6 is provided with a supporting plate, the supporting plate is provided with a round hole 1-1, the supporting plate 1 is provided with a positioning pin 2 arranged in a ring around the center of the round hole 1-1, the base 7 is further provided with a lower ring plate pressing device 3 arranged in a ring on the upper surface and a muscle plate positioning device 4 arranged in a ring, and the supporting plate located at the center of the round hole 1-1 is provided with an upper ring plate pressing device 5.

[0030] Specifically, the base 7 includes a bottom plate 7-1 and a top plate 7-2 with a round through hole, the bottom plate 7-1 and the top plate 7-2 are fixedly connected through a stand 7-3, and the fixed end of the jacking device 6 is fixedly connected with the bottom plate 7-1.

[0031] As Figure 8As shown, the lower ring plate pressing device 3 comprises a rotary pressing cylinder 3-1 and a pressing head 3-3, the telescopic part of the rotary pressing cylinder 3-1 is connected with a pressing arm 3-2, and the pressing head 3-3 is fixed at one end of the pressing arm 3-2 away from the rotary pressing cylinder 3-1. After the lower ring plate 8-1 is placed in position, a button is pressed manually, the electromagnetic valve is controlled by PLC to act, thereby air is supplied to the rotary pressing cylinder 3-1, the pressing arm 3-2 on the rotary pressing cylinder 3-1 is rotated by 90 degrees and moves downward to drive the pressing head 3-3 to press the lower ring plate 8-1. Further, the pressing head 3-3 is threadedly connected with the pressing arm 3-2, and the initial distance of the pressing head 3-3 from the lower ring plate 8-1 is changed by changing the depth of the pressing head 3-3 screwed into the pressing arm 3-2.

[0032] As shown in the figure, Figure 9 The rib plate positioning device 4 comprises a telescopic cylinder 4-1 and a connecting block 4-2, the connecting block 4-2 is arranged at the telescopic part of the telescopic cylinder 4-1, the connecting block 4-2 is W-shaped, and a magnet 4-3 is inserted into the slot on both sides of the connecting block 4-2. After the lower ring plate 8-1 is pressed into position, the telescopic cylinder 4-1 in the rib plate positioning device 4 is extended until it hits the cylinder limiting block 9 fixed on the bottom plate 7-1 (the cylinder limiting block 9 is arranged in a ring shape on the bottom plate 7-1, and is used to limit the extension position of the telescopic cylinder 4-1, so that the telescopic cylinder 4-1 can be guaranteed to extend to the same position every time, ensuring batch production of products), the front end of the telescopic cylinder 4-1 drives the magnet 4-3 to the specified position through the connecting block 4-2, and then the rib plate is placed manually at the magnet 4-2, which can ensure that the rib plate will not fall off at the specified position.

[0033] As shown in the figure, Figure 10 The upper ring plate pressing device 5 comprises a telescopic cylinder 5-1 and a pressing block 5-4, the telescopic part of the telescopic cylinder 5-1 is movably hinged with two pressing blocks 5-4, the end of the telescopic cylinder 5-1 on one side of the telescopic part is fixed with a connecting seat 5-2, and one connecting rod 5-3 is hinged to each of the connecting seats 5-2 on both sides of the telescopic part of the telescopic cylinder 5-1, and the other end of the connecting rod 5-3 is hinged with the corresponding pressing block 5-4. After the upper ring plate 8-4 is placed manually, the button is pressed, the telescopic cylinder 5-1 is extended, the pressing block 5-4 is driven to act, and the upper ring plate 8-4 is pressed.

[0034] The application also provides a use method of the connecting flange pneumatic assembly welding tool, which comprises the connecting flange pneumatic assembly welding tool in any one of the above aspects, and the use method comprises the following steps: Figure 5As shown, the connecting flange includes a lower ring plate 8-1, an upper ring plate 8-4, a steel plate ring 8-2, and a web plate 8-3, the lower ring plate 8-1 and the upper ring plate 8-4 are respectively welded on both side end faces of the steel plate ring 8-2, the web plate 8-3 is around the steel plate ring 8-2 and is welded and fixed with the lower ring plate 8-1, the upper ring plate 8-4 and the steel plate ring 8-2, and the use method of the connecting flange welding by using the above tooling is as follows:

[0035] I. The lower ring plate 8-1 is placed on the supporting plate 1 by the centering positioning pin 2, and the lower ring plate pressing device 3 is actuated to press the lower ring plate 8-1;

[0036] II. The steel plate ring 8-2 is placed, and then the web plate positioning device 4 is extended, and the web plate 8-3 is placed in the clamping hand of the web plate positioning device 4;

[0037] III. After the web plate 8-3 is placed, the upper ring plate 8-4 is placed above the web plate 8-3;

[0038] IV. The point welding is performed on each component of the connecting flange, after the point welding is completed, the lower ring plate pressing device 3 is loosened, the web plate positioning device 4 is retracted, the jacking device 6 is actuated to jacking the supporting plate 1 with the connecting flange upwards until all the welding seams of the connecting flange are exposed, so as to perform the full welding on the connecting flange;

[0039] V. After the welding is completed, the upper ring plate pressing device 5 is loosened, the connecting flange is taken away, the jacking device 6 is lowered, and the above welding steps are repeated to perform the welding of the next connecting flange.

Claims

1. A tooling for pneumatic assembly welding of connecting flanges, characterized in that: The base (7) is provided with a jacking device (6) in the middle, the jacking device (6) comprises a fixed end and a movable end, the movable end of the jacking device (6) is provided with a supporting plate, the supporting plate is provided with a supporting plate (1), the supporting plate (1) is provided with a circular hole (1-1), the supporting plate (1) is provided with a positioning pin (2) arranged in a ring around the center of the circular hole (1-1), the upper surface of the base (7) is further provided with a lower ring plate pressing device (3) and a rib plate positioning device (4) arranged in a ring, the supporting plate located in the center of the circular hole (1-1) is provided with an upper ring plate pressing device (5); The rib plate positioning device (4) comprises a telescopic air cylinder (4-1) and a connecting block (4-2), the connecting block (4-2) is arranged on the telescopic part of the telescopic air cylinder (4-1), the connecting block (4-2) is W-shaped, and the two side notches of the connecting block (4-2) are inserted with magnets (4-3).

2. The connecting flange pneumatic assembly welding tooling of claim 1, wherein: The base (7) comprises a bottom plate (7-1) and a top plate (7-2) provided with a circular through hole, the bottom plate (7-1) and the top plate (7-2) are fixedly connected through a stand column (7-3), and the fixed end of the jacking device (6) is fixedly connected with the bottom plate (7-1).

3. The connecting flange pneumatic assembly welding tooling of claim 1, wherein: The lower ring plate pressing device (3) comprises a rotary pressing air cylinder (3-1) and a pressing head (3-3), the telescopic part of the rotary pressing air cylinder (3-1) is connected with a pressing arm (3-2), and the pressing head (3-3) is fixed to one end of the pressing arm (3-2) away from the rotary pressing air cylinder (3-1).

4. The connecting flange pneumatic group-welding tool according to claim 3, characterized in that: The pressing head (3-3) is threadedly connected with the pressing arm (3-2).

5. The connecting flange pneumatic group-welding tool according to claim 1, characterized in that: The upper ring plate pressing device (5) comprises a stretching air cylinder (5-1) and a pressing block (5-4), two pressing blocks (5-4) are movably hinged to the telescopic part of the stretching air cylinder (5-1), the end of the stretching air cylinder (5-1) on one side of the telescopic part is fixedly connected with a connecting seat (5-2), one connecting rod (5-3) is hinged to each of the connecting seats (5-2) on the two sides of the telescopic part of the stretching air cylinder (5-1), and the other end of the connecting rod (5-3) is hinged to the corresponding pressing block (5-4).

6. A method of using a flange pneumatic gang weld tooling, characterized by: The connecting flange pneumatic assembly welding tool comprises the connecting flange, the lower ring plate (8-1), the upper ring plate (8-4), the steel plate ring (8-2) and the rib plate (8-3), the lower ring plate (8-1) and the upper ring plate (8-4) are welded on the two side end faces of the steel plate ring (8-2) respectively, and the rib plate (8-3) is arranged around the steel plate ring (8-2) and is welded and fixed with the lower ring plate (8-1), the upper ring plate (8-4) and the steel plate ring (8-2). I. The lower ring plate (8-1) is placed on the supporting plate (1) through the center positioning pin (2), and the lower ring plate pressing device (3) is actuated to press the lower ring plate (8-1); II. The steel plate ring (8-2) is placed, then the rib plate positioning device (4) is extended, and the rib plate (8-3) is placed in the clamping hand of the rib plate positioning device (4); III. After the rib plate (8-3) is placed, the upper ring plate (8-4) is placed above the rib plate (8-3). Four, each component of the connecting flange is spot-welded, after the spot-welding is completed, the lower ring plate pressing device (3) is loosened, the rib plate positioning device (4) is retracted, the jacking device (6) is actuated to jacking the support plate (1) bearing the connecting flange upward until all the welding seams of the connecting flange are exposed, so that the connecting flange is full-welded; Five, after the welding is completed, the upper ring plate pressing device (5) is loosened, the connecting flange is removed, the jacking device (6) is lowered, and the welding of the next connecting flange is carried out.

Images