Combined elbow pipe welding tool

Abstract

The utility model relates to welding technical field especially relates to a combined elbow piece welding tool, including machine body and spot welder, traction mechanism includes the guide long hole in the machine body, the guide long hole acts on the sliding installation mobile support, and the limit mechanism rotates and installs the drive pivot on the mobile support, and drive pivot fixedly connected with the middle control block and load support include the mobile support of left and right side position symmetry setting, set up the clamping block and push board that drive slider synchronous traction in the mobile support. The utility model in machine body left and right side position symmetry setting mobile support, utilize traction mechanism to the two mobile supports carry out the traction to each other or reverse, make two groups of mobile supports can drive the limit mechanism and carry out horizontal movement, and set up the curved groove and the arc groove that correspond to the right angle elbow component horizontal section and longitudinal section respectively in the clamping block and push board, make in the process of clamping to each other guarantee the right angle elbow component's limit stability.

Description

Technical Field

[0001] This utility model relates to the field of pipe bending welding technology, and in particular to a combined pipe bending welding fixture. Background Technology

[0002] In the production of composite pipe bends, existing technologies have many pain points that urgently need to be addressed. The unique structure of the pipe bends and their irregular bending shape significantly increase the difficulty of assembly and fixing during the welding process.

[0003] Conventional step-by-step welding methods, such as the combined pipe bending welding fixture disclosed in CN219665539U, which has a vertical pipe fixing structure and a horizontal pipe fixing structure for use on the base, can achieve efficient splicing and welding of various pipe components. However, for right-angle pipe components, only a single type of fixing structure is used. Especially when connecting two right-angle pipe components to be welded, it is easy to have the problem of docking deviation. The process is scattered and lacks precise positioning assistance, which not only consumes a lot of manpower and time costs, but also makes it difficult to effectively control the welding accuracy. Utility Model Content

[0004] The purpose of this invention is to solve the problem of unstable pipe welding fixation in existing technologies for welding combined pipe bends, and to propose a welding fixture for combined pipe bends.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A combined pipe bending welding fixture includes a machine body and a spot welder. The machine body has movable supports symmetrically and movably arranged on its left and right sides, and a traction mechanism is provided on the machine body for pulling the two sets of movable supports to move towards each other. Each set of movable supports is provided with a limiting mechanism for fixing the pipe bending component. A guide rail is provided on the front side of the machine body, and a load-bearing bracket for fixing the spot welder is movably installed on the guide rail.

[0007] Preferably, the traction mechanism includes a guide elongated hole formed in the body, the guide elongated hole being used for slidingly mounting a movable bracket, and a steering rocker arm for moving and traction of the movable bracket being rotatably mounted at the lower end of the body.

[0008] Preferably, a traction link is pin-connected between the end of the steering rocker arm and the movable bracket.

[0009] Preferably, the limiting mechanism includes a drive shaft rotatably mounted on a movable bracket, a central control block and a load-bearing bracket fixedly connected to the drive shaft, a piston tube fixedly disposed between the central control block and the load-bearing bracket, a drive slider slidably mounted in the central control block, a tensioning swing rod movably pulled by the drive slider mounted on the load-bearing bracket by a pin shaft, a clamping block for fixing the transverse section of the bent pipe component integrally connected to the tensioning swing rod, a drive piston slidably fitted in the lower end of the piston tube fixedly connected to the drive slider, and a driven piston slidably fitted in the upper end of the piston tube, and a push plate fixedly pulled by the driven piston and used to fix the longitudinal section of the bent pipe component slidably mounted on the load-bearing bracket.

[0010] Preferably, a traction rod is pin-connected between the driving slider and the opening / closing swing arm, and the clamping block is provided with a curved groove corresponding to the bent pipe component.

[0011] Preferably, the load-bearing bracket is integrally connected with a transverse guide rail for sliding installation of the push plate, and the push plate has an arc groove corresponding to the bent pipe component.

[0012] Compared with the prior art, the present invention has the following advantages:

[0013] 1. This utility model has symmetrically arranged movable supports on the left and right sides of the machine body. The two movable supports are pulled in opposite directions by a traction mechanism, so that the two sets of movable supports can move horizontally through the limiting mechanism, thereby facilitating the precise docking of two right-angle bent pipe components to be welded.

[0014] 2. This utility model provides a clamping block and a push plate that are synchronously pulled by a drive slider on a movable support, and respectively opens curved grooves and arc grooves in the clamping block and the push plate to correspond to the transverse and longitudinal sections of the right-angle bent pipe component, so as to ensure the limiting stability of the right-angle bent pipe component during the clamping process. Attached Figure Description

[0015] Figure 1 This is a structural schematic diagram of a combined pipe bending welding fixture proposed in this utility model;

[0016] Figure 2 This is a bottom view of a combined pipe bending welding fixture proposed in this utility model.

[0017] Figure 3 This is a schematic diagram of the limiting mechanism structure of a combined pipe bending welding fixture proposed in this utility model;

[0018] Figure 4 This is a cross-sectional view of the limiting mechanism structure of a combined welding fixture for bending pipes proposed in this utility model.

[0019] In the diagram: 1. Body; 2. Moving support; 3. Traction mechanism; 31. Steering rocker arm; 32. Guide elongated hole; 33. Traction connecting rod; 4. Limiting mechanism; 41. Drive shaft; 42. Central control block; 43. Load-bearing support; 44. Piston long tube; 45. Drive slider; 46. Opening and closing rocker arm; 47. Traction rod; 48. Clamping block; 49. Curved groove; 410. Drive piston; 411. Driven piston; 412. Transverse guide rail; 413. Push plate; 414. Arc groove; 5. Guide slide rail; 6. Load-bearing support; 7. Spot welder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0021] Reference Figures 1-4 A combined pipe bending welding fixture includes a machine body 1 and a spot welder 7. The machine body 1 is symmetrically and movably equipped with movable supports 2 on the left and right sides. Wear and tear between the machine body 1 and the movable supports 2 is reduced by setting anti-wear pads on the machine body 1 and applying lubricating oil.

[0022] The body 1 is provided with a traction mechanism 3 for pulling two sets of movable supports 2 to move towards each other. The traction mechanism 3 includes a guide elongated hole 32 opened in the body 1. The guide elongated hole 32 is used to slide the movable support 2. The guide elongated hole 32 provides a guiding and limiting function for the movable support 2. A steering rocker arm 31 for moving and pulling the movable support 2 is rotatably installed at the lower end of the body 1. The body 1 is provided with a first drive motor for driving the steering rocker arm 31 to reciprocate. Under the driving action of the first drive motor, the steering rocker arm 31 is made to swing, thereby driving the two movable supports 2 to move towards or in opposite directions along the guide elongated hole 32. During the movement towards each other, the two right-angle bent pipe components are connected by contact.

[0023] Both sets of movable supports 2 are equipped with limiting mechanisms 4 for fixing the bent pipe components. The limiting mechanism 4 includes a drive shaft 41 rotatably mounted on the movable support 2. One of the movable supports 2 is equipped with a second drive motor for driving the drive shaft 41 to rotate. Under its driving action, the bent pipe components to be connected are flipped and adjusted in the front and back direction so that the spot welder can perform 360° all-round welding operation on the bent pipe components. A central control block 42 and a load-bearing bracket 43 are fixedly connected to the drive shaft 41. A piston tube 44 is fixedly installed between the central control block 42 and the load-bearing bracket 43. A drive slider 45 is slidably installed in the central control block 42. A tensioning swing rod 46, which is movably pulled by the drive slider 45, is pin-mounted on the load-bearing bracket 43. A clamping block 48 for fixing the transverse section of the bent pipe component is integrally connected to the tensioning swing rod 46. To be further explained, the clamping block 48 has a curved groove 49 corresponding to the bent pipe component. When the two clamping blocks 48 move towards each other and close, the curved groove 49 fixes the transverse section of the bent pipe component. The drive slider 45 is fixedly connected to a drive piston 410 that is slidably fitted into the lower end of the piston tube 44, and a driven piston 411 is slidably fitted into the upper end of the piston tube 44. A push plate 413, which is fixedly pulled by the driven piston 411 and used to fix the longitudinal section of the bent pipe component, is slidably installed on the load support 43. To further explain, the push plate 413 has an arc groove 414 corresponding to the bent pipe component. By fitting the longitudinal section of the bent pipe component into the arc groove 414, pressure is applied to the bent pipe component from the opposite direction to the clamping block 48 to ensure the stability of the opposing clamping.

[0024] A guide rail 5 is provided on the front side of the machine body 1. A load-bearing bracket 6 for fixing the spot welder 7 is movably installed on the guide rail 5. By driving the load-bearing bracket 6 along the guide rail 5, the spot welder 7 can be moved along the bent pipe component to facilitate welding operations at the contact point between the two bent pipe components.

[0025] A traction link 33 is pin-connected between the end of the steering rocker arm 31 and the movable bracket 2.

[0026] A traction rod 47 is connected to the drive slider 45 and the opening and closing swing rod 46 by a pin.

[0027] The load-bearing bracket 43 is integrally connected with a transverse guide rail 412 for sliding installation of the push plate 413, so as to guide and limit the linearly moving push plate 413.

[0028] It should be noted that the specific models and specifications of the first and second drive motors need to be selected and determined based on the actual specifications of the device. The specific selection and calculation methods use existing technology in this field, so they will not be elaborated here.

[0029] The functional principle of this utility model can be explained through the following operation methods:

[0030] The right-angle bend component is placed in the limiting mechanism 4, and the drive slider 45 is controlled to move horizontally along the central control block 42:

[0031] On the one hand, the drive slider 45 drives the opening and closing swing rod 46 to deflect through the traction rod 47, so that the clamping block 48 is fitted onto the transverse section of the right-angle bent pipe component through the curved groove 49;

[0032] On the other hand, the drive slider 45 drives the drive piston 410 to extend into the piston tube 44 to drive the driven piston 411, so that the push plate 413 moves horizontally along the transverse guide rail 412, so as to use the arc groove 414 to abut and limit the longitudinal section of the right-angle bent pipe component.

[0033] The steering lever 31 is deflected, and the two movable supports 2 are moved toward each other through the traction link 33 until the two right-angle bent pipe components are horizontally connected.

[0034] The control drive shaft 41 is rotated, and the limit mechanism 4 is used to drive the right-angle bent pipe component to flip.

[0035] The load-bearing bracket 6 is moved on the guide slide rail 5, and the spot welder 7 is operated on the load-bearing bracket 6 to perform spot welding on the right-angle bent pipe components.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A combined welding fixture for pipe bending, comprising a machine body (1) and a spot welder (7), characterized in that, The machine body (1) is symmetrically and movably provided with movable brackets (2) on the left and right sides, and the machine body (1) is provided with a traction mechanism (3) for pulling the two sets of movable brackets (2) to move towards each other. Both sets of movable brackets (2) are provided with a limiting mechanism (4) for fixing the bent pipe component. The front side of the machine body (1) is provided with a guide slide rail (5), and a load-bearing bracket (6) for fixing the spot welder (7) is movably installed on the guide slide rail (5).

2. The combined pipe bending welding fixture according to claim 1, characterized in that, The traction mechanism (3) includes a guide elongated hole (32) opened in the body (1), the guide elongated hole (32) is used to slide the movable bracket (2), and the lower end of the body (1) is rotatably mounted with a steering rocker (31) for moving the movable bracket (2).

3. The combined pipe bending welding fixture according to claim 2, characterized in that, The steering rocker arm (31) is connected to the movable support (2) by a pin shaft via a traction link (33).

4. The combined pipe bending welding fixture according to claim 1, characterized in that, The limiting mechanism (4) includes a drive shaft (41) rotatably mounted on a movable bracket (2). A central control block (42) and a load-bearing bracket (43) are fixedly connected to the drive shaft (41). A piston tube (44) is fixedly arranged between the central control block (42) and the load-bearing bracket (43). A drive slider (45) is slidably mounted in the central control block (42). A tensioning swing rod (45) is mounted on the load-bearing bracket (43) by a pin and is movably pulled by the drive slider (45). 46), the opening and closing swing rod (46) is integrally connected with a clamping block (48) for fixing the transverse section of the bent pipe component, the driving slider (45) is fixedly connected with a driving piston (410) which is slidably fitted in the lower end of the piston tube (44), and a driven piston (411) is slidably fitted in the upper end of the piston tube (44). The load-bearing bracket (43) is slidably installed with a push plate (413) which is fixedly pulled by the driven piston (411) and used to fix the longitudinal section of the bent pipe component.

5. The combined pipe bending welding fixture according to claim 4, characterized in that, The drive slider (45) and the opening and closing swing rod (46) are connected by a traction rod (47) by a pin, and the clamping block (48) is provided with a curved groove (49) corresponding to the bent pipe component.

6. The combined pipe bending welding fixture according to claim 4, characterized in that, The load-bearing bracket (43) is integrally connected with a transverse guide rail (412) for sliding installation of the push plate (413), and the push plate (413) is provided with an arc groove (414) corresponding to the bent pipe component.

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