Oxygen-acetylene welding multi-angle welding workbench and using method thereof

Abstract

The invention discloses an oxygen-acetylene welding multi-angle welding workbench and a using method thereof, and belongs to the technical field of metal oxygen-acetylene welding.The oxygen-acetylene welding multi-angle welding workbench comprises a bench clamp, a small cover plate and a rotating table, the rotating table is of a hollow structure and used for allowing a long-pipe-shaped welding piece to penetrate and fixing the welding height of the long-pipe-shaped welding piece, a bearing is fixed to the rotating table, and the outer ring of the bearing is fixed to a table; the small cover plate is clamped into the circular groove of the upper table top of the rotating table and rotates synchronously, the smooth face of the small cover plate is used for welding light-weight metal parts, the guide rail on the other face of the small cover plate is matched with the guide rail at the bottom of the bench clamp, and the bench clamp clamps the metal parts and can adjust the welding position. 360-degree free rotation of the workbench can be achieved, and welding angle adjustment is achieved through height adjustment of long-pipe-shaped metal pieces and fastening of parts which are light in weight and have welding angle requirements.

Description

Technical Field

[0001] The invention belongs to the technical field of metal oxy-acetylene welding, and in particular relates to an oxy-acetylene welding multi-angle welding workbench and a use method thereof. Background Art

[0002] Oxy-acetylene welding is a gas welding method that uses the heat generated by the combustion of acetylene gas and oxygen. The core of oxy-acetylene welding is to achieve direct connection between materials and form a weld. This process requires the application of heat to complete. When welding metal parts, they usually need to be placed on a welding workbench for welding operations, so a welding workbench is required.

[0003] At present, the existing oxy-acetylene welding workbench has the following shortcomings: 1. During welding, in order to ensure the weld angle and quality required by the regulations, the welding angle needs to be adjusted by rotating the metal parts. For some long tubular welded parts, the welding height needs to be adjusted and effective clamping needs to be achieved in order to achieve welding. The existing workbench cannot achieve the free rotation of the metal parts during welding and the adjustment of the height of the long tubular welded parts; 2. Due to the light weight, when welding metal parts with welding angle requirements, the metal parts need to be tightened regardless of the size of the welded parts, but the existing workbench cannot achieve the tightening of such parts, making the welding of such parts difficult. Therefore, it is necessary to design a new type of oxy-acetylene welding multi-angle welding workbench to achieve the free rotation of the metal parts during welding, the adjustment of the height of the long tubular welded parts, and the tightening of the light weight metal parts with welding angle requirements. Summary of the invention

[0004] In view of the above-mentioned deficiencies, the present invention provides an oxy-acetylene welding multi-angle welding workbench and a method of using the same, which can effectively solve the problems that metal parts cannot rotate freely during welding and the height of long tubular welding parts cannot be adjusted, as well as the problem that light weight parts with welding angle requirements cannot be fastened, making the welding of such parts difficult.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0006] An oxy-acetylene welding multi-angle welding workbench comprises a bench clamp 1, a small cover plate 2 and a rotating table 3.

[0007] The rotating table 3 includes a bearing 3-1, a limiting bolt 3-2, an upper table 3-3 and a connecting column 3-4; the connecting column 3-4 is a hollow cylinder for the insertion of a long tubular welded part, and a plurality of limiting holes are formed on the column body of the connecting column 3-4 along the length direction, which cooperate with the limiting bolt 3-2 to fix the height of the long tubular welded part, and both ends of the connecting column 3-4 are fixedly connected with an annular table, and the size of the inner hole of the annular table is the same as that of the inner hole of the connecting column 3-4, wherein a coaxial circular groove is formed in the middle of the upper table 3-3 for inserting and fixing the small cover plate 2; the inner ring of the bearing 3-1 is fixed on the lower side of the upper table 3-3 on the upper part of the connecting column 3-4, and the outer ring is fixed on the table, so that the rotating table 3 can rotate freely.

[0008] The small cover plate 2 is a circular cover plate, and its diameter matches the inner diameter of the circular groove of the table surface 3-3 on the rotating table 3. When in use, the small cover plate 2 is inserted into the circular groove so that it can rotate synchronously with the rotating table 3. Two guide rails 2-1 are symmetrically arranged on one side of the small cover plate 2 for sliding cooperation with the bench vise 1. The other side is a smooth platform, which is used when welding light-weight metal parts with welding angle requirements. Two grooves 2-2 are formed relatively at the edge of the surface. When the side with the guide rail 2-1 is inserted into the circular groove upward, the groove 2-2 is used to cooperate with the tool to take out the small cover plate 2.

[0009] The bench vise 1 comprises a supporting frame 1-1, a bench vise guide rail 1-2, a lead screw 1-5, a jaw 1-3 and a tightening handle 1-4. The supporting frame 1-1 comprises a base at the bottom and a U-shaped frame at the top. The U-shaped frame opens downward, and one end thereof is hinged to the base so that the U-shaped frame and the base form an opening and closing mechanism. The other end is hinged with a tightening handle 1-4. The tightening handle 1-4 is hooked on the base on the same side to lock the U-shaped frame and the base in a closed state. A threaded through hole is formed in the center of the top of the U-shaped frame for the lead screw 1-5 to pass through and be screwed in. The lower jaw of the jaw 1-3 is fixed in the base, and the upper jaw is arranged in the U-shaped frame. The two ends of the upper jaw cooperate with the inner sides of the two arms of the U-shaped frame so that the upper jaw can move up and down. The bottom end of the lead screw 1-5 rotates with the top end of the upper jaw, and the lead screw 1-5 is turned to adjust the position of the upper jaw to achieve clamping of the welded part; there are two vise guide rails 1-2, which are symmetrically fixed at the bottom of the base of the support frame 1-1, and slide with the two guide rails 2-1 on the small cover plate 2 to adjust the welded part to the optimal welding position.

[0010] A method for using the above-mentioned oxy-acetylene welding multi-angle welding workbench includes three usage scenarios: metal parts that need to rotate freely, long tubular welding parts, and light-weight metal parts. The steps of the method for each scenario are as follows:

[0011] Methods used when welding metal parts that need to rotate freely include:

[0012] Step 1: Fix the outer ring of the bearing 3-1 of the oxy-acetylene welding multi-angle welding workbench on the table, so that the lower table surface of the rotating table 3 is a certain distance from the ground, so as to realize the 360° free rotation of the workbench; face the side of the small cover plate 2 with the guide rail 2-1 upward, and fit the vise guide rail 1-2 into the guide rail 2-1 of the small cover plate 2, and then snap the small cover plate 2 into the circular groove of the upper table surface 3-3 of the rotating table 3 to complete the fixation.

[0013] Step 2: Fix the metal part to be welded at the jaws 1-3 of the vise 1, and adjust the angle of the metal part to achieve the optimal welding angle; adjust the position of the vise 1 on the table 3-3 of the rotating table 3 through the guide rail 2-1 to make the position of the metal part the optimal welding position, and adjust the welding angle by adjusting the lower table of the rotating table 3 during the welding process.

[0014] Methods used when welding long tubular weldments include:

[0015] Step 1: Fix the outer ring of the bearing 3-1 of the oxy-acetylene welding multi-angle welding workbench on the table, so that the lower table surface of the rotating table 3 is a certain distance from the ground to achieve 360° free rotation of the workbench; do not install the small cover plate 2, exposing the inner hole of the upper table surface 3-3 of the rotating table 3 and the inner hole of the connecting column 3-4.

[0016] Step 2: Insert the long tubular welding part to be welded into the inner hole of the rotating table 3, adjust the height to the required height, and fix it through the limiting hole on the connecting column 3-4 with the limiting bolt 3-2. During the welding process, the welding angle can be adjusted by adjusting the lower surface of the rotating table 3.

[0017] Methods used when welding lightweight metal parts include:

[0018] Step 1: Fix the outer ring of the bearing 3-1 of the oxy-acetylene welding multi-angle welding workbench on the table, so that the lower table surface of the workbench is a certain distance from the ground to achieve 360° free rotation of the workbench; insert the smooth platform side of the small cover plate 2 with the groove 2-2 facing upward into the circular groove of the upper table surface 3-3 of the rotating table 3.

[0019] Step 2: Place the lightweight metal parts to be welded on the small cover plate 2, adjust the lightweight metal parts to achieve the best welding angle, and adjust the welding angle by adjusting the lower table surface of the rotating table 3 during the welding process.

[0020] The beneficial effects of the present invention are as follows: the present invention can realize 360° free rotation of the workbench, height adjustment of long tubular metal parts, and fastening of light-weight parts with welding angle requirements to achieve adjustment of welding angles; in addition, the small cover plate is connected to the bench vise through a guide rail, which increases the portability of the bench vise. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the structure of the rotating table of the present invention;

[0023] Figure 3 It is a schematic diagram of the bearing structure of the present invention;

[0024] Figure 4 It is a schematic diagram of the bench clamp structure of the present invention;

[0025] Figure 5 Schematic diagram of the structure of the small cover plate of the present invention, wherein (a) and (b) are structural diagrams of the two sides of the small cover plate respectively;

[0026] In the figure: 1 vise; 2 small cover plate; 3 rotating table; 1-1 supporting frame; 1-2 vise guide rail; 1-3 jaws; 1-4 tightening handle; 1-5 lead screw; 2-1 guide rail; 2-2 groove; 3-1 bearing; 3-2 limit bolt; 3-3 upper table; 3-4 connecting column. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the specific implementation methods of the present invention will be described in detail below with reference to the technical solution.

[0028] Example 1

[0029] This embodiment provides an oxy-acetylene welding multi-angle welding workbench, the multi-angle welding workbench comprises a bench clamp 1, a small cover plate 2 and a rotating table 3, such as Figure 1 shown.

[0030] like Figure 2 As shown, the rotating table 3 includes a bearing 3-1, a limiting bolt 3-2, an upper table 3-3 and a connecting column 3-4; the connecting column 3-4 is a hollow cylinder for the long tubular welding piece to penetrate, and the column body of the connecting column 3-4 is provided with 6 limiting holes along the length direction, which cooperate with the limiting bolt 3-2 to fix the height of the long tubular welding piece, and both ends of the connecting column 3-4 are fixedly connected with an annular table, and the size of the inner hole of the annular table is the same as that of the inner hole of the connecting column 3-4, wherein a coaxial circular groove is provided in the middle of the upper table 3-3 for inserting and fixing the small cover plate 2; the inner ring of the bearing 3-1 is fixed on the lower side of the upper table 3-3 of the upper part of the connecting column 3-4, and the outer ring is fixed on the table, so that the rotating table 3 can rotate freely, as shown in FIG. Figure 3 shown.

[0031] like Figure 5As shown, the small cover plate 2 is a circular cover plate, and its diameter matches the inner diameter of the circular groove of the table surface 3-3 on the rotating table 3. When in use, the small cover plate 2 is inserted into the circular groove so that it can rotate synchronously with the rotating table 3. Two guide rails 2-1 are symmetrically arranged on one side of the small cover plate 2 for sliding cooperation with the vise 1, and the other side is a smooth platform, which is used for welding light metal parts with welding angle requirements. Two grooves 2-2 are relatively formed at the edge of the surface. When the side with the guide rail 2-1 is inserted into the circular groove upward, the groove 2-2 is used to cooperate with the tool to take out the small cover plate 2.

[0032] like Figure 4 As shown, the bench vise 1 includes a supporting frame 1-1, a bench vise guide rail 1-2, a lead screw 1-5, a jaw 1-3 and a tightening handle 1-4. The supporting frame 1-1 includes a lower base and an upper U-shaped frame. The U-shaped frame opens downward, and one end thereof is hinged to the base so that the U-shaped frame and the base form an opening and closing mechanism. The other end is hinged with a tightening handle 1-4, which is hooked on the base on the same side to lock the U-shaped frame and the base in a closed state. A threaded through hole is formed in the center of the top of the U-shaped frame for the lead screw 1-5 to pass through and Threaded fit; the lower jaw of the jaw 1-3 is fixed in the base, and the upper jaw is arranged in the U-shaped frame. The two ends of the upper jaw cooperate with the inner sides of the two arms of the U-shaped frame so that the upper jaw can move up and down, and the bottom end of the lead screw 1-5 rotates with the top end of the upper jaw. The lead screw 1-5 is turned to adjust the position of the upper jaw to achieve clamping of the welded part; there are two bench vise guide rails 1-2, which are symmetrically fixed at the bottom of the base of the support frame 1-1, and slide with the two guide rails 2-1 on the small cover plate 2 to adjust the welded part to the optimal welding position.

[0033] Example 2

[0034] This embodiment provides a method for using an oxy-acetylene welding multi-angle welding workbench. The oxy-acetylene welding multi-angle welding workbench provided in Embodiment 1 is used to weld metal parts that need to rotate freely. The method includes the following steps:

[0035] Step 1: Fix the outer ring of the bearing 3-1 of the oxy-acetylene welding multi-angle welding workbench on the table, so that the lower table surface of the rotating table 3 is a certain distance from the ground, so as to realize the 360° free rotation of the workbench; face the side of the small cover plate 2 with the guide rail 2-1 upward, and fit the vise guide rail 1-2 into the guide rail 2-1 of the small cover plate 2, and then snap the small cover plate 2 into the circular groove of the upper table surface 3-3 of the rotating table 3 to complete the fixation.

[0036] Step 2: Fix the metal part to be welded at the jaws 1-3 of the vise 1, and adjust the angle of the metal part to achieve the optimal welding angle; adjust the position of the vise 1 on the table 3-3 of the rotating table 3 through the guide rail 2-1 to make the position of the metal part the optimal welding position, and adjust the welding angle by adjusting the lower table of the rotating table 3 during the welding process.

[0037] Example 3

[0038] This embodiment provides a method for using an oxy-acetylene welding multi-angle welding workbench. The oxy-acetylene welding multi-angle welding workbench provided in Embodiment 1 is used to weld a long tubular weldment. The method includes:

[0039] Step 1: Fix the outer ring of the bearing 3-1 of the oxy-acetylene welding multi-angle welding workbench on the table, so that the lower table surface of the rotating table 3 is a certain distance from the ground to achieve 360° free rotation of the workbench; do not install the small cover plate 2, exposing the inner hole of the upper table surface 3-3 of the rotating table 3 and the inner hole of the connecting column 3-4.

[0040] Step 2: Insert the long tubular welding part to be welded into the inner hole of the rotating table 3, adjust the height to the required height, and fix it through the limiting hole on the connecting column 3-4 with the limiting bolt 3-2. During the welding process, the welding angle can be adjusted by adjusting the lower surface of the rotating table 3.

[0041] Example 4

[0042] This embodiment provides a method for using an oxy-acetylene welding multi-angle welding workbench. The oxy-acetylene welding multi-angle welding workbench provided in Embodiment 1 is used to weld light-weight metal parts. The method includes:

[0043] Step 1: Fix the outer ring of the bearing 3-1 of the oxy-acetylene welding multi-angle welding workbench on the table, so that the lower table surface of the workbench is a certain distance from the ground to achieve 360° free rotation of the workbench; insert the smooth platform side of the small cover plate 2 with the groove 2-2 facing upward into the circular groove of the upper table surface 3-3 of the rotating table 3.

[0044] Step 2: Place the lightweight metal parts to be welded on the small cover plate 2, adjust the lightweight metal parts to achieve the best welding angle, and adjust the welding angle by adjusting the lower table surface of the rotating table 3 during the welding process.

Claims

1. An oxy-acetylene welding multi-angle welding workbench, characterized in that: The multi-angle welding workbench comprises a rotating table (3), and the rotating table (3) comprises a bearing (3-1), a limiting bolt (3-2), an upper table surface (3-3) and a connecting column (3-4); the connecting column (3-4) is a hollow cylinder for the long tubular welding piece to pass through, and the column body of the connecting column (3-4) is provided with a plurality of limiting holes along the length direction, which cooperate with the limiting bolt (3-2) to fix the height of the long tubular welding piece, and both ends of the connecting column (3-4) are fixedly connected with an annular table surface, and the size of the inner hole of the annular table surface is the same as the inner hole of the connecting column (3-4); the inner ring of the bearing (3-1) is fixed on the lower side of the upper table surface (3-3) of the upper part of the connecting column (3-4), and the outer ring is fixed on the table, so that the rotating table (3) can rotate freely.

2. The oxy-acetylene welding multi-angle welding workbench according to claim 1, characterized in that: The multi-angle welding workbench also includes a small cover plate (2), which is a circular cover plate with one side being a smooth platform for placing metal parts; a coaxial circular groove is formed in the middle of the upper table surface (3-3) of the rotating table (3), the inner diameter of the circular groove matches the diameter of the small cover plate (2), and is used to clamp the small cover plate (2) so that it can rotate synchronously with the rotating table (3).

3. The oxy-acetylene welding multi-angle welding workbench according to claim 1, characterized in that: Two guide rails (2-1) are symmetrically arranged on the other side of the smooth platform of the small cover plate (2); The multi-angle welding workbench also includes a bench vise (1). The bench vise (1) is provided with a jaw (1-3) for clamping a welded part. Two bench vise guide rails (1-2) are symmetrically provided at the bottom thereof and are slidably matched with two guide rails (2-1) on a small cover plate (2) for adjusting the welded part to a welding position.

4. The oxy-acetylene welding multi-angle welding workbench according to claim 3, characterized in that: Two grooves (2-2) are formed on the edge of one side of the smooth platform of the small cover plate (2). When the side with the guide rail (2-1) is inserted upward into the circular groove of the upper table surface (3-3) of the rotating table (3), the grooves (2-2) are used to cooperate with tools to remove the small cover plate (2).

5. An oxy-acetylene welding multi-angle welding workbench according to claim 3 or 4, characterized in that: The bench vise (1) also includes a supporting frame (1-1), a lead screw (1-5) and a tightening handle (1-4); the supporting frame (1-1) includes a base at the bottom and a U-shaped frame at the top, the U-shaped frame opens downward, one end of the U-shaped frame is hinged to the base, so that the U-shaped frame and the base form an opening and closing mechanism, and the other end is hinged to a tightening handle (1-4), the tightening handle (1-4) is hooked on the base on the same side, and the U-shaped frame and the base are locked in a closed state, and a threaded through hole is formed in the center of the top of the U-shaped frame for the lead screw (1-5) to pass through and threadedly engage; the lower jaw of the jaw (1-3) is fixed in the base, and the upper jaw is arranged in the U-shaped frame, and the two ends of the upper jaw are engaged with the inner sides of the two arms of the U-shaped frame so that the upper jaw can move up and down, the bottom end of the lead screw (1-5) is rotatably engaged with the top end of the upper jaw, and the lead screw (1-5) is turned to adjust the position of the upper jaw to achieve clamping of the welded part.

6. A method for using the oxy-acetylene welding multi-angle welding workbench according to claim 1, characterized in that: The method of use comprises the following steps: Step 1: Fix the outer ring of the bearing (3-1) of the oxy-acetylene welding multi-angle welding workbench on the table, so that the lower table surface of the rotating table (3) is off the ground, and the workbench can rotate freely; Step 2: Insert the long tubular welding piece to be welded into the inner hole of the rotating table (3), adjust the height to the required height, and fix it through the limiting hole on the connecting column (3-4) with the limiting bolt (3-2). During the welding process, the welding angle can be adjusted by adjusting the lower table surface of the rotating table (3).

7. A method for using the oxy-acetylene welding multi-angle welding workbench according to claim 2, characterized in that: The method of use comprises the following steps: Step 1: Fix the outer ring of the bearing (3-1) of the oxy-acetylene welding multi-angle welding workbench on the table, so that the lower table surface of the workbench is off the ground, and the workbench can rotate freely; insert the small cover plate (2) into the circular groove of the upper table surface (3-3) of the rotating table (3) with the smooth platform side facing upward; Step 2: Place the lightweight metal piece to be welded on the small cover plate (2), adjust the lightweight metal piece to achieve a welding angle, and adjust the welding angle by adjusting the lower table surface of the rotating table (3) during the welding process.

8. A method for using the oxy-acetylene welding multi-angle welding workbench according to claim 3 or 4, characterized in that: The method of use comprises the following steps: Step 1: Fix the outer ring of the bearing (3-1) of the oxy-acetylene welding multi-angle welding workbench on the table, so that the lower table surface of the rotating table (3) is off the ground, and the workbench can rotate freely; place the side of the small cover plate (2) with the guide rail (2-1) facing upward, and fit the vise guide rail (1-2) into the guide rail (2-1) of the small cover plate (2), and then insert the small cover plate (2) into the circular groove of the upper table surface (3-3) of the rotating table (3) to complete the fixation; Step 2: Fix the metal piece to be welded at the jaws (1-3) of the bench vise (1), and adjust the angle of the metal piece to achieve an optimal welding angle; adjust the position of the bench vise (1) on the upper table (3-3) of the rotating table (3) through the guide rail (2-1), and adjust the welding angle by adjusting the lower table of the rotating table (3) during the welding process.

9. A method for using the oxy-acetylene welding multi-angle welding workbench according to claim 5, characterized in that: The method of use comprises the following steps: Step 1: Fix the outer ring of the bearing (3-1) of the oxy-acetylene welding multi-angle welding workbench on the table, so that the lower table surface of the rotating table (3) is off the ground, and the workbench can rotate freely; place the side of the small cover plate (2) with the guide rail (2-1) facing upward, and fit the vise guide rail (1-2) into the guide rail (2-1) of the small cover plate (2), and then insert the small cover plate (2) into the circular groove of the upper table surface (3-3) of the rotating table (3) to complete the fixation; Step 2: Fix the metal piece to be welded at the jaws (1-3) of the bench vise (1), and adjust the angle of the metal piece to achieve an optimal welding angle; adjust the position of the bench vise (1) on the upper table (3-3) of the rotating table (3) through the guide rail (2-1), and adjust the welding angle by adjusting the lower table of the rotating table (3) during the welding process.

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