Clamping device for metal part welding

Abstract

The utility model relates to a clamping device for metal piece welding, which belongs to the field of metal piece welding and comprises a bottom plate, two vertical plates are vertically fixed on the upper surface of the bottom plate, a positioning mechanism is arranged above the bottom plate, and a rotating mechanism is arranged above the bottom plate. According to the clamping device for metal part welding, left and right movable plates can move oppositely by starting left and right electric push rods, left and right hinge rods drive left and right square rods to clamp a metal part, friction force between the clamping device and the metal part can be increased through rubber blocks, and the metal part is clamped more stably; by starting output shafts at the two ends of a double-shaft motor, two second gears start to drive the two clamped metal parts to rotate, welding of other areas of the metal parts is facilitated, and the purpose of improving the welding efficiency is achieved; the welding device has the advantage that the metal part can be fixed and welded conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of metal part welding, in particular to a clamping device for metal part welding. Background Technique

[0002] Metal welding is a manufacturing or sculpting process for connecting metals. During the welding process, the workpiece and the solder melt or do not melt to form a direct connection weld of the materials. With the continuous development of the current welding industry, many metal parts need to be welded to meet the product requirements, especially some circular pipe-shaped metal parts. However, when welding circular pipe-shaped metal parts, they are usually erected on the welding workbench and then welded with a welding torch.

[0003] For example, a metal part welding fixture disclosed in Chinese Patent CN 219189205 U includes a base, a support rod, and a support ring. The support rod is welded to one end of the top of the base, and the support ring is welded to one end of the support rod. Three clamping blocks are movably arranged inside the support ring. Limiting rods are welded to both ends of one side of the three clamping blocks, and all six limiting rods movably penetrate through the support ring.

[0004] The above-mentioned metal part welding fixture still has certain deficiencies. By rotating three bolts, the three bolts push the three clamping blocks closer to each other during rotation, and thus the metal part can be clamped and fixed. In this way, the metal part will not move during welding. However, the method of fixing the metal part by rotating three bolts is not flexible enough, and it is difficult to manually fix the metal part to keep it in the area of the same center point, which affects the welding efficiency. Therefore, this application proposes a clamping device for metal part welding to solve the above problems. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a clamping device for metal part welding, which has the advantage of being convenient for fixing and welding metal parts, and solves the problem that it is difficult to keep the metal part in the area of the same center point, which affects the welding efficiency.

[0006] To achieve the above object, the utility model provides the following technical solution: A clamping device for metal part welding, including a bottom plate, two vertical plates are vertically fixed on the upper surface of the bottom plate, a positioning mechanism is arranged above the bottom plate, and a rotating mechanism is arranged above the bottom plate;

[0007] The positioning mechanism includes a movable column rotatably connected to the right side of the left vertical plate through a bearing. A connecting plate is fixed to the right end of the movable column. An electric push rod is fixed to the right side of the connecting plate and at its center. A movable plate is fixed to the outer side of the output shaft of the electric push rod. Four connecting rods are fixed to the right side of the connecting plate. The right ends of the four connecting rods are fixed to the same positioning frame. Three hinge rods are hinged to the right side of the movable plate through hinge shafts. Three square rods extending to the inside are slidably connected to the outer side of the positioning frame. Arc-shaped plates are fixed to the opposite sides of the three square rods;

[0008] The rotating mechanism includes a double-shaft motor fixed to the upper surface of the bottom plate. Mounting rods are fixed to the outer sides of the output shafts at both ends of the double-shaft motor. The opposite ends of the two mounting rods penetrate through the two vertical plates and the first gears are fixed to the outer sides. The outer sides of the two first gears are both engaged with the second gears.

[0009] Further, four support feet are fixed to the lower surface of the bottom plate. Rubber pads are fixed to the bottoms of the four support feet.

[0010] Further, the three hinge rods are respectively hinged to the left sides of the three square rods through hinge shafts. The movable plate is slidably connected to the outer sides of the four connecting rods.

[0011] Further, the positioning frame is in the shape of a hollow cylinder missing on the left and right sides. Rubber blocks are fixed to the opposite sides of the three arc-shaped plates.

[0012] Further, the number of the positioning mechanisms is two, and the two positioning mechanisms are symmetrically distributed left and right with the central axis of the bottom plate as the symmetry line.

[0013] Further, the two second gears are respectively fixed to the outer sides of the two movable columns, and the outer diameters of the two second gears are respectively larger than the outer diameters of the two first gears.

[0014] Further, two mounting blocks are fixed to the upper surface of the bottom plate. The two mounting rods are respectively rotatably connected to the inside of the two mounting blocks through bearings.

[0015] Compared with the prior art, the technical solution of the present application has the following beneficial effects:

[0016] 1. For the clamping device for metal part welding, by starting the electric push rods on the left and right sides, the movable plates on the left and right sides can move away from each other. The hinge rods on the left and right sides respectively drive the square rods on the left and right sides to clamp the metal part. The rubber blocks can increase the friction with the metal part, making the clamping of the metal part more stable, achieving the purpose of facilitating the fixed welding of the metal part.

[0017] 2. The clamping device for welding metal parts starts the output shafts at both ends of the biaxial motor, causing the two second gears to drive the two clamped metal parts to rotate, facilitating welding of other areas of the metal parts and achieving the purpose of improving welding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic structural diagram of the present invention;

[0019] Figure 2 is a schematic diagram of the positioning mechanism of the present invention;

[0020] Figure 3 is a perspective view of a partial structure in the positioning mechanism of the present invention;

[0021] Figure 4 is a schematic diagram of the rotating mechanism of the present invention.

[0022] In the figure: 1 base plate, 2 positioning mechanism, 201 movable column, 202 connecting plate, 203 electric push rod, 204 movable plate, 205 connecting rod, 206 positioning frame, 207 hinge rod, 208 square rod, 209 arc plate, 3 vertical plate, 4 rotating mechanism, 401 biaxial motor, 402 mounting rod, 403 first gear, 404 second gear, 5 support feet. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figure 1 , a clamping device for welding metal parts in this embodiment includes a base plate 1. Two vertical plates 3 are vertically fixed on the upper surface of the base plate 1. A positioning mechanism 2 is provided above the base plate 1, and a rotating mechanism 4 is provided above the base plate 1.

[0025] Four support feet 5 are fixed on the lower surface of the base plate 1, and rubber pads are fixed at the bottoms of the four support feet 5.

[0026] Please refer to Figures 2 - 3, in order to facilitate the fixed welding of metal parts, the positioning mechanism 2 in this embodiment includes a movable column 201 rotatably connected to the right side of the left vertical plate 3 through a bearing. A connecting plate 202 is fixed to the right end of the movable column 201. An electric push rod 203 is fixed to the right side of the connecting plate 202 and at its center. A movable plate 204 is fixed to the outside of the output shaft of the electric push rod 203. Four connecting rods 205 are fixed to the right side of the connecting plate 202. The right ends of the four connecting rods 205 are fixed to the same positioning frame 206. Three hinge rods 207 are hinged to the right side of the movable plate 204 through a hinge shaft. Three square rods 208 extending to the inside are slidably connected to the outside of the positioning frame 206. Arc-shaped plates 209 are fixed to the opposite sides of the three square rods 208.

[0027] In this example, the number of the positioning mechanisms 2 is two. The two positioning mechanisms 2 are symmetrically distributed left and right with the central axis of the bottom plate 1 as the symmetry line. The three hinge rods 207 are respectively hinged to the left sides of the three square rods 208. The two metal parts to be welded are respectively placed inside the two positioning frames 206. The movable plate 204 is slidably connected to the outside of the four connecting rods 205. The positioning frame 206 is in the shape of a cylinder with a hollow interior and missing left and right sides. By starting the electric push rods 203 on the left and right sides, the movable plates 204 on the left and right sides can move away from each other. At this time, the hinge rods 207 on the left and right sides respectively drive the square rods 208 on the left and right sides to clamp the metal parts. Rubber blocks are fixed to the opposite sides of the three arc-shaped plates 209. The friction with the metal parts can be increased through the rubber blocks, making the clamping of the metal parts more stable.

[0028] It should be noted that by starting the electric push rods 203 on the left and right sides, the movable plates 204 on the left and right sides can move away from each other. The hinge rods 207 on the left and right sides respectively drive the square rods 208 on the left and right sides to clamp the metal parts. The friction with the metal parts can be increased through the rubber blocks, making the clamping of the metal parts more stable, achieving the purpose of facilitating the fixed welding of metal parts.

[0029] Please refer to Figure 4 , in order to improve the welding efficiency, the rotation mechanism 4 in this embodiment includes a double-shaft motor 401 fixed to the upper surface of the bottom plate 1. Mounting rods 402 are fixed to the outside of the output shafts at both ends of the double-shaft motor 401. The opposite ends of the two mounting rods 402 penetrate through the two vertical plates 3 and the first gears 403 are fixed to the outside. The outside of the two first gears 403 is meshed with the second gears 404.

[0030] In this embodiment, two second gears 404 are respectively fixed on the outer sides of two movable columns 201. The outer diameters of the two second gears 404 are respectively larger than the outer diameters of the two first gears 403. Two mounting blocks are fixed on the upper surface of the base plate 1. Two mounting rods 402 are respectively rotatably connected to the interiors of the two mounting blocks through bearings. By starting the output shafts at both ends of the double-shaft motor 401, the two mounting rods 402 on the left and right sides respectively drive the two first gears 403 to start rotating, so that the two second gears 404 start to drive the two clamped metal parts to start rotating, facilitating welding of other areas of the metal parts, and achieving the purpose of improving the welding efficiency.

[0031] It should be noted that by starting the output shafts at both ends of the double-shaft motor 401, the two second gears 404 start to drive the two clamped metal parts to start rotating, facilitating welding of other areas of the metal parts, and achieving the purpose of improving the welding efficiency.

[0032] It can be understood that the electrical components mentioned in the text are all electrically connected to the main controller and the power supply, and the electrical components mentioned in the text are all conventional known devices. This application will not go into too much detail. The main controller can be a conventional known device such as a computer for control. The control circuit of the main controller can be realized by simple programming by those skilled in the art. The provision of the power supply also belongs to the common knowledge in the art. And this utility model is mainly used to protect mechanical devices, so this utility model will not explain the control method and circuit connection in detail. At the same time, for the parts not described in detail in this utility model, they are all well-known technologies to those skilled in the art.

[0033] In the description of this utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood through specific situations.

[0034] The working principle of the above embodiment is as follows:

[0035] (1) When the clamping device for metal part welding needs to be used, the two metal parts to be welded are respectively placed inside the two positioning frames 206. By starting the electric push rods 203 on the left and right sides, the movable plates 204 on the left and right sides can move away from each other. At this time, the hinge rods 207 on the left and right sides respectively drive the square rods 208 on the left and right sides to clamp the metal parts. The rubber blocks can increase the friction with the metal parts, making the clamping of the metal parts more stable.

[0036] (2) After partially welding the metal parts, in order to facilitate welding of other areas of the metal parts, the output shafts at both ends of the biaxial motor 401 can be started at this time, so that the left and right mounting rods 402 drive the two first gears 403 to rotate respectively, causing the two second gears 404 to drive the two clamped metal parts to rotate, facilitating welding of other areas of the metal parts, and achieving the purpose of improving welding efficiency.

[0037] It should be noted that in this text, 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 order 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 also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0038] Although the embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A clamping device for welding metal parts, comprising a base plate (1), characterized in that: Two vertical plates (3) are vertically fixed on the upper surface of the bottom plate (1); a positioning mechanism (2) is provided above the bottom plate (1); and a rotating mechanism (4) is provided above the bottom plate (1); The positioning mechanism (2) comprises a movable column (201) rotatably connected to the right side of the left vertical plate (3) through a bearing, a connecting plate (202) is fixed to the right end of the movable column (201), an electric push rod (203) is fixed to the right side of the connecting plate (202) and located at the center thereof, a movable plate (204) is fixed to the outer side of the output shaft of the electric push rod (203), four connecting rods (205) are fixed to the right side of the connecting plate (202), the right ends of the four connecting rods (205) are fixed to the same positioning frame (206), the right side of the movable plate (204) is hinged with three hinged rods (207) through a hinge shaft, the outer side of the positioning frame (206) is slidably connected to three square rods (208) extending to the inner side thereof, and the three square rods (208) are fixed to the opposite sides thereof. An arc plate (209) is fixed; The rotating mechanism (4) comprises a double-axis motor (401) fixed on the upper surface of the bottom plate (1), the outer sides of the output shafts at both ends of the double-axis motor (401) are fixed with mounting rods (402), the opposite ends of the two mounting rods (402) penetrate the two vertical plates (3) and the outer sides are fixed with first gears (403), and the outer sides of the two first gears (403) are meshed with second gears (404).

2. A clamping device for metal welding according to claim 1, characterized in that: Four supporting feet (5) are fixed to the lower surface of the base plate (1), and rubber pads are fixed to the bottoms of the four supporting feet (5).

3. A clamping device for metal welding according to claim 1, characterized in that: The three hinged rods (207) are respectively hinged to the left sides of the three square rods (208) through hinge shafts, and the movable plate (204) is slidably connected to the outer sides of the four connecting rods (205).

4. A clamping device for metal welding according to claim 1, characterized in that: The positioning frame (206) is in the shape of a cylinder with a hollow interior and missing left and right sides, and rubber blocks are fixed on opposite sides of the three arc-shaped plates (209).

5. The clamping device for metal welding according to claim 1, characterized in that: The number of the positioning mechanisms (2) is two, and the two positioning mechanisms (2) are symmetrically distributed with respect to each other on the left and right sides with the central axis of the bottom plate (1) as the symmetry line.

6. A clamping device for metal welding according to claim 1, characterized in that: The two second gears (404) are respectively fixed on the outsides of the two movable columns (201), and the outer diameters of the two second gears (404) are respectively larger than the outer diameters of the two first gears (403).

7. A clamping device for metal welding according to claim 1, characterized in that: Two mounting blocks are fixed on the upper surface of the base plate (1), and the two mounting rods (402) are rotatably connected to the inside of the two mounting blocks via bearings.

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