A stiffening ring welding system

Abstract

The present invention provides a stiffening ring welding system comprising: a clamping robot and a stiffening ring petal fixing device; the stiffening ring petal fixing device comprises a mounting bracket, a telescopic device and a fixing block; the mounting bracket is fixed above the stiffening ring petal welding position, the bottom of the mounting bracket is high in the middle and low at both ends; the mounting bracket is provided with a telescopic device, the output ends of the multiple telescopic devices all point to the center position of the stiffening ring, the telescopic device is provided with a fixing block, and the fixing block is provided with a fixing groove. The clamping robot clamps the stiffening ring petal to the stiffening ring welding position, the output end of the telescopic device extends, and the fixing block moves in a direction close to the stiffening ring petal to fix the stiffening ring petal and perform welding. The clamping robot clamps the second stiffening ring petal, thereby improving the clamping efficiency of the clamping robot. This solves the problem that traditional stiffening ring welding equipment is unstable in clamping the stiffening ring petals, which easily leads to poor stiffening ring welding accuracy and low welding efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of stiffening ring welding, and in particular to a stiffening ring welding system. Background Art

[0002] In recent years, water conservancy projects have developed rapidly. High-pressure water supply is an important part of water conservancy projects. Due to the high water head and high internal water pressure in the pressure steel pipe, it is necessary to weld stiffening rings on the outer wall of the steel pipe during the production process to improve the structural strength of the steel pipe.

[0003] The stiffening rings of large-diameter pressure steel pipes are composed of multiple arc-shaped stiffening ring petals. During the welding process of the stiffening ring petals, a clamping robot is required to take the stiffening ring petals from the shelf and clamp them to the pressure steel pipe for welding. Ordinary stiffening ring welding systems usually use clamping robots for clamping and welding. The clamping robots are highly active and the clamping is unstable, which can easily lead to poor stiffening ring welding accuracy and low welding efficiency. Summary of the Invention

[0004] The purpose of the present invention is to provide a stiffening ring welding system to solve the problem that the traditional stiffening ring welding system has unstable clamping of the stiffening ring petals, which easily causes poor stiffening ring welding precision and low welding efficiency.

[0005] The present invention provides a stiffening ring welding system comprising: a clamping robot and a stiffening ring petal fixing device;

[0006] The gripping robot is arranged on one side of the stiffening ring welding position;

[0007] The stiffening ring petal fixing device includes a mounting bracket, a telescopic device and a fixing block. The mounting bracket is fixed above the welding position of the stiffening ring petal. The bottom of the mounting bracket is high in the middle and low at both ends.

[0008] Multiple telescopic devices are evenly arranged on the mounting bracket, and the output ends of the multiple telescopic devices all point to the center position of the stiffening ring. A fixed block is set at the output end of the telescopic device, and a fixed groove is set on the side of the fixed block close to the stiffening ring welding piece connection position.

[0009] Furthermore, the middle and both ends of the bottom of the mounting bracket are equidistant from the center of the stiffening ring, and mounting plates are provided at the middle and both ends of the bottom of the mounting bracket, and the three telescopic devices are respectively fixed on the three mounting plates.

[0010] Furthermore, the telescopic device is a cylinder, the fixed end of the cylinder is fixed on the mounting bracket, and the fixed block is connected to the output end of the cylinder.

[0011] Furthermore, the width of one end of the fixing block away from the telescopic device is greater than the width of one end of the fixing block connected to the output end of the telescopic device, and the fixing groove is provided at the end of the fixing block away from the telescopic device.

[0012] Furthermore, the fixing groove passes through the fixing block along the tangent direction of the stiffening ring, the bottom of the fixing groove is in an arc shape, and the width of the fixing groove is equal to the thickness of the stiffening ring petal.

[0013] Furthermore, it also includes two welding robots, which are respectively arranged on both sides of the stiffening ring petal.

[0014] Furthermore, it also includes a stiffening ring petal placement device, which is arranged on one side of the clamping robot, and the stiffening ring placement device includes: a stiffening ring petal placement frame and a support frame;

[0015] The support frame is vertically arranged, a base is arranged at the bottom of the support frame, a stiffening ring petal placement frame is arranged on the top of the support frame, and a plurality of stiffening ring petal support structures are arranged on the stiffening ring petal placement frame.

[0016] Furthermore, the stiffening ring petal support structure is in a mountain shape, and a plurality of mountain-shaped stiffening ring petal support structures are evenly arranged.

[0017] Furthermore, stiffening ring petal slots are provided on both sides of the mountain-shaped stiffening ring petal support structure, and multiple fixing pins are provided in the middle of the stiffening ring. The multiple fixing pins are divided into two rows, and the distance between the two rows of fixing pins is equal to the thickness of the stiffening ring petal.

[0018] Furthermore, it also includes a lifting device, the stiffening ring petal placement frame is a lifting bracket, the stiffening ring petal placement frame is connected to the support frame for up and down sliding, the lifting device is arranged on the support frame, and the stiffening ring petal placement frame is connected to the output end of the lifting device.

[0019] By adopting the above technical solution, compared with the prior art, the beneficial effects of the present invention are:

[0020] The stiffening ring welding system provided by the present invention comprises: a clamping robot and a stiffening ring petal fixing device;

[0021] The gripping robot is arranged on one side of the stiffening ring welding position;

[0022] The stiffening ring petal fixing device includes a mounting bracket, a telescopic device and a fixing block. The mounting bracket is fixed above the welding position of the stiffening ring petal. The bottom of the mounting bracket is high in the middle and low at both ends.

[0023] Multiple telescopic devices are evenly arranged on the mounting bracket, and the output ends of the multiple telescopic devices all point to the center position of the stiffening ring. A fixed block is set at the output end of the telescopic device, and a fixed groove is set on the side of the fixed block close to the stiffening ring welding piece connection position.

[0024] When the above specific scheme is implemented, the clamping robot clamps the stiffening ring petal to be welded to the stiffening ring welding position of the steel pipe, the mounting bracket is fixed above the stiffening ring welding position, the output end of the telescopic device extends, and the fixed block moves along the output end of the telescopic device toward the direction close to the stiffening ring petal, fixing the stiffening ring petal at the stiffening ring welding position, and welding the stiffening ring petal.

[0025] The gripping robot loosens the welded stiffening ring petal piece and grips the second stiffening ring petal piece, thereby improving the gripping efficiency of the gripping robot.

[0026] The invention solves the problem that the traditional stiffening ring welding equipment has unstable clamping of the stiffening ring petals, which easily causes poor stiffening ring welding accuracy and low welding efficiency.

[0027] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments of the present invention are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of the overall structure of the stiffening ring welding system provided by the present invention;

[0030] Figure 2 This is a front view of the stiffening ring welding system provided by the present invention;

[0031] Figure 3 This is a structural schematic diagram of a stiffening ring petal fixing device of a stiffening ring welding system provided by the present invention;

[0032] Figure 4 This is a structural schematic diagram from another angle of the stiffening ring petal fixing device of the stiffening ring welding system provided by the present invention;

[0033] Figure 5 This is a structural schematic diagram of a stiffening ring petal placement device of a stiffening ring welding system provided by the present invention;

[0034] Figure 6 for Figure 5 A partial enlarged view of point A.

[0035] In the figure: 1-gripping robot, 2-stiffening ring petal fixing device, 21-mounting bracket, 22-telescopic device, 23-fixing block, 231-fixing slot, 3-welding robot, 4-stiffening ring petal placement device, 41-stiffening ring petal placement frame, 411-stiffening ring petal support structure, 412-stiffening ring petal slot, 413-fixing pin, 42-support frame, 43-lifting device, 431-lifting motor, 432-chain. DETAILED DESCRIPTION

[0036] The technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0037] In the description of the present invention, it should be noted that the terms "center", "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0039] An embodiment of the present application provides a stiffening ring welding system for high-precision and high-efficiency welding of stiffening ring petals.

[0040] This embodiment provides a stiffening ring welding system, such as Figure 1-3 As shown, the stiffening ring welding system includes: a clamping robot 1 and a stiffening ring petal fixing device 2;

[0041] The gripping robot 1 is arranged on one side of the stiffening ring welding position;

[0042] The stiffening ring petal fixing device 2 includes a mounting bracket 21, a telescopic device 22 and a fixing block 23. The mounting bracket 21 is fixed above the welding position of the stiffening ring petal. The bottom of the mounting bracket 21 is high in the middle and low at both ends.

[0043] A plurality of telescopic devices 22 are evenly arranged on the mounting bracket 21, and the output ends of the plurality of telescopic devices 22 all point to the center position of the stiffening ring. A fixing block 23 is provided at the output end of the telescopic device 22, and a fixing groove 231 is provided on the side of the fixing block 23 close to the welding position of the stiffening ring petal.

[0044] In actual application, the clamping robot 1 clamps the stiffening ring petal to be welded to the stiffening ring welding position of the steel pipe, the mounting bracket 21 is fixed above the stiffening ring welding position, the output end of the telescopic device 22 is extended, and the fixed block 23 moves along the output end of the telescopic device 22 toward the direction close to the stiffening ring petal, fixing the stiffening ring petal at the stiffening ring welding position, and welding the stiffening ring petal.

[0045] The stiffening ring petal fixing device 2 replaces the clamping robot 1 to fix the stiffening ring petal. The clamping robot 1 loosens the fixed stiffening ring petal and clamps the second stiffening ring petal, thereby improving the clamping efficiency and the welding efficiency of the stiffening ring welding equipment.

[0046] In the specific technical solution of the embodiment of the present invention, the distance from the middle and both ends of the bottom of the mounting bracket 21 to the center of the stiffening ring is equal, and mounting plates are provided in the middle and both ends of the bottom of the mounting bracket 21, and the three telescopic devices 22 are respectively fixed on the three mounting plates.

[0047] Specifically, the distances from the three mounting plates to the circular position of the stiffening ring are equal, that is, the distances from the three mounting plates to the stiffening ring petals are equal, which facilitates the three telescopic devices 22 to fix the two ends and the middle of the stiffening ring petals at the same time, making the stiffening ring petals more firmly fixed and the welding accuracy higher.

[0048] In the specific technical solution of the embodiment of the present invention, the telescopic device 22 is a cylinder, the fixed end of the cylinder is fixed to the mounting bracket 21, and the fixing block 23 is connected to the output end of the cylinder.

[0049] Specifically, three shafts are provided at the output end of the cylinder, and the fixed block 23 is connected to the three shafts at the same time to prevent the cylinder shaft from rotating, which causes the fixed block 23 to shift. The three cylinders are connected to the same air source assembly, which can realize the synchronous extension and contraction of the three cylinders, facilitating the fixation of the clamping ring petals.

[0050] In the specific technical solution of the embodiment of the present invention, the width of the end of the fixed block 23 away from the telescopic device 22 is greater than the width of the end of the fixed block 23 connected to the output end of the telescopic device 22, and the fixing groove 231 is provided at the end of the fixed block 23 away from the telescopic device 22.

[0051] The side of the fixing block 23 that contacts the clamping ring petal piece is wider, and the fixing groove 231 is longer, so that the stiffening ring petal piece is fixed more firmly.

[0052] In the specific technical solution of the embodiment of the present invention, Figure 4 As shown, the fixing groove 231 passes through the fixing block 23 along the tangent direction of the stiffening ring. The bottom of the fixing groove 231 is arc-shaped, and the width of the fixing groove 231 is equal to the thickness of the stiffening ring petal.

[0053] Specifically, the fixing grooves 231 on the fixing blocks 23 at both ends pass through the fixing blocks 23 and can be simultaneously clamped on the stiffening ring petals to be welded and the stiffening ring petals welded on both sides. The arc shape of the bottom of the fixing groove 231 is equal to the arc radius of the stiffening ring petals, so that the bottom of the fixing groove 231 is completely fitted with the stiffening ring petals, and the width of the fixing groove 231 is equal to the thickness of the stiffening ring petals, preventing the stiffening ring petals from shaking in the fixing groove 231 and affecting the welding height of the stiffening ring petals.

[0054] In the specific technical solution of the embodiment of the present invention, Figure 1 、 Figure 2 As shown, the stiffening ring welding system further includes two welding robots 3 , which are respectively arranged on both sides of the stiffening ring petals.

[0055] Two welding robots 3 simultaneously weld both sides of the fixed stiffening ring petals, which makes the stiffening ring petals welded more firmly and improves the welding efficiency of the stiffening ring.

[0056] In the specific technical solution of the embodiment of the present invention, Figure 5 As shown, the stiffening ring welding system further includes a stiffening ring petal placement device 4, which is disposed on one side of the clamping robot 1. The stiffening ring placement device includes: a stiffening ring petal placement frame 41 and a support frame 42;

[0057] The support frame 42 is vertically arranged, a base is provided at the bottom of the support frame 42 , a stiffening ring petal placement frame 41 is arranged on the top of the support frame 42 , and a plurality of stiffening ring petal support structures 411 are provided on the stiffening ring petal placement frame 41 .

[0058] A stiffening ring petal is placed on each stiffening ring petal support structure 411, and the stiffening ring petal placement rack 41 on which multiple stiffening ring petals are placed is located on the top of the support rack 42, which facilitates the clamping robot 1 to clamp the stiffening ring petals, shortens the distance that the clamping robot 1 moves from clamping the stiffening ring petals to the stiffening ring welding position, and further improves the welding efficiency of the stiffening ring welding system.

[0059] Specifically, a mounting hole is provided on the base, which is fixed to the bottom surface by expansion bolts, so that the vertically arranged support frame 42 is more stable.

[0060] In a specific technical solution of an embodiment of the present invention, the stiffening ring petal support structure 411 is in a mountain shape, and a plurality of mountain-shaped stiffening ring petal support structures 411 are evenly arranged.

[0061] The mountain-shaped structure is high in the middle and low at both ends, and at the same time supports the middle and both ends of the arc-shaped stiffening ring petals, so that the stiffening ring petals are placed vertically, making it convenient for the clamping robot 1 to quickly clamp to the appropriate position of the stiffening ring petals, further improving the clamping speed of the clamping robot 1.

[0062] In the specific technical solution of the embodiment of the present invention, Figure 6 As shown, stiffening ring petal slots 412 are provided on both sides of the U-shaped stiffening ring petal support structure 411, and multiple fixing pins 413 are provided in the middle of the stiffening ring. The multiple fixing pins 413 are divided into two rows, and the distance between the two rows of fixing pins 413 is equal to the thickness of the stiffening ring petal.

[0063] Specifically, four fixing pins 413 are provided, and the stiffening ring petal slots 412 clamp the two ends of the stiffening ring petal. The four fixing pins 413 are clamped on both sides of the middle position of the stiffening ring petal to prevent the stiffening ring petal from tilting in the stiffening ring petal support structure 411, thereby reducing the clamping speed of the clamping robot 1.

[0064] In the specific technical solution of the embodiment of the present invention, Figure 5 As shown, it also includes a lifting device 43, the stiffening ring petal placement frame 41 is a lifting bracket, the stiffening ring petal placement frame 41 is connected to the support frame 42 for up and down sliding, the lifting device 43 is arranged on the support frame 42, and the stiffening ring petal placement frame 41 is connected to the output end of the lifting device 43.

[0065] Specifically, the lifting device 43 includes a lifting motor 431 and a chain 432. The lifting motor 431 drives the chain 432 to control the up and down movement of the stiffening ring petal placement frame 41 on the support frame 42. When the staff places the stiffening ring petal on the stiffening ring petal placement frame 41, the height of the stiffening ring petal placement frame 41 is lowered to improve the placement efficiency of the stiffening ring petal. After the placement is completed, the stiffening ring petal placement frame 41 is raised to the top of the support frame 42 to facilitate the clamping robot 1 to clamp the stiffening ring petal.

[0066] In summary, the clamping robot 1 clamps the stiffening ring petal to be welded to the stiffening ring welding position of the steel pipe, the mounting bracket 21 is fixed above the stiffening ring welding position, the output end of the telescopic device 22 extends, and the fixed block 23 moves along the output end of the telescopic device 22 toward the direction close to the stiffening ring petal, fixing the stiffening ring petal at the stiffening ring welding position, and welding the stiffening ring petal.

[0067] The stiffening ring petal fixing device 2 replaces the clamping robot 1 to fix the stiffening ring petal. The clamping robot 1 loosens the fixed stiffening ring petal and clamps the second stiffening ring petal, thereby improving the clamping efficiency and the welding efficiency of the stiffening ring welding equipment.

[0068] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to in conjunction with each other; the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents; in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. However, these modifications, replacements, or combinations do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A stiffening ring welding system, characterized in that: include: Gripping robot and stiffening ring flap fixture; The clamping robot is arranged on one side of the stiffening ring welding position, and the clamping robot is used to clamp the stiffening ring petals to be welded to the stiffening ring welding position; The stiffening ring petal fixing device includes a mounting bracket, a telescopic device and a fixing block. The mounting bracket is fixed above the welding position of the stiffening ring petal. The bottom of the mounting bracket is high in the middle and low at both ends. A plurality of the telescopic devices are evenly arranged on the mounting bracket, and the output ends of the plurality of the telescopic devices are all directed to the center of the stiffening ring. The output end of the telescopic device is provided with the fixed block, and a fixing groove is provided on the side of the fixed block close to the stiffening ring welding piece connection position, and the fixing groove is used to constrain the stiffening ring petals; It also includes a stiffening ring petal placement device, which is arranged on one side of the clamping robot, and the stiffening ring petal placement device includes: a stiffening ring petal placement frame and a support frame; The support frame is vertically arranged, a base is provided at the bottom of the support frame, the stiffening ring petal placement frame is arranged on the top of the support frame, and a plurality of stiffening ring petal support structures are provided on the stiffening ring petal placement frame; It also includes a lifting device, the stiffening ring petal placement frame is a lifting bracket, the stiffening ring petal placement frame is connected to the support frame for up and down sliding, the lifting device is arranged on the support frame, and the stiffening ring petal placement frame is connected to the output end of the lifting device.

2. The stiffening ring welding system according to claim 1, characterized in that: The middle and both ends of the bottom of the mounting bracket are equidistant from the center of the stiffening ring. Mounting plates are provided in the middle and both ends of the bottom of the mounting bracket, and the three telescopic devices are respectively fixed on the three mounting plates.

3. The stiffening ring welding system according to claim 1, characterized in that: The telescopic device is a cylinder, the fixed end of the cylinder is fixed on the mounting bracket, and the fixing block is connected to the output end of the cylinder.

4. The stiffening ring welding system according to claim 1, characterized in that: The width of one end of the fixing block away from the telescopic device is greater than the width of one end of the fixing block connected to the output end of the telescopic device, and the fixing groove is provided at the end of the fixing block away from the telescopic device.

5. The stiffening ring welding system according to claim 4, characterized in that: The fixing groove passes through the fixing block along the tangent direction of the stiffening ring. The bottom of the fixing groove is in an arc shape. The width of the fixing groove is equal to the thickness of the stiffening ring petal.

6. The stiffening ring welding system according to claim 1, characterized in that: It also includes two welding robots, which are respectively arranged on both sides of the stiffening ring petal.

7. The stiffening ring welding system according to claim 1, characterized in that: The reinforcing ring petal support structure is in a mountain shape, and a plurality of the mountain-shaped reinforcing ring petal support structures are evenly arranged.

8. The stiffening ring welding system according to claim 7, characterized in that: Stiffening ring petal slots are provided on both sides of the mountain-shaped stiffening ring petal support structure, and multiple fixing pins are provided in the middle of the stiffening ring. The multiple fixing pins are divided into two rows, and the distance between the two rows of fixing pins is equal to the thickness of the stiffening ring petal.

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