Pincer type cap dismounting wrench

Abstract

The utility model discloses a pincer type cap dismounting wrench, which belongs to the technical field of dismounting tools and comprises an upper jaw and a lower jaw, the upper jaw is fixedly connected with an upper pincer handle, the lower jaw is fixedly connected with a lower pincer handle, and the upper jaw and the lower jaw are hinged through a rotating shaft. U-shaped protrusions with the same size and shape are arranged in the U-shaped jaw of the upper jaw and the U-shaped jaw of the lower jaw, and the thickness after the U-shaped protrusions of the upper jaw and the U-shaped protrusions of the lower jaw are overlapped is smaller than the height of an annular seam between an electrode cap and an electrode rod. By using the wrench, the upper jaw and the lower jaw are separated, so that the electrode cap is detached from the electrode stem and falls off, the wrench is simple to use, high in detaching speed and high in efficiency, and the cap detaching and replacing speed is increased. And a pure manual mechanical structure is easy to carry, low in manufacturing cost, easy to popularize in a production workshop and capable of being directly operated and replaced on site.

Description

Technical Field

[0001] The utility model relates to the technical field of resistance welding, and more particularly to a pliers-type cap removal wrench. Background Art

[0002] Resistance welding is the most widely used welding method among pressure welding methods. It uses the resistance heat generated by an electric current passing through the weldment and the contact points as a heat source to locally melt or plasticize the weldment. Simultaneously, pressure is applied to the heated area to form a strong weld joint. The welding process requires no filler metal, offers high productivity, minimizes weld deformation, and is easily automated.

[0003] Resistance spot welding is primarily suitable for joining thin plate overlaps less than 4 mm thick, metal mesh, and cross-reinforced steel. It is primarily suitable for welding mild steel, stainless steel, copper, aluminum, nickel, titanium, and their alloys, as well as composite and electroplated mesh. It is widely used in the manufacture of aviation, aerospace, high-speed rail, automobiles, reinforced components, furniture, and other products.

[0004] During the welding production process, the electrode cap is a consumable and easy to wear. The welding life of electrode caps of different working conditions, different welding processes and different specifications is different. Therefore, replacing the electrode cap is an indispensable process in welding production. During the welding process, the electrode cap and the electrode rod (arm) contact surface of the welding clamp will be tightly connected together. Professional tools and equipment are required to assist in disassembly.

[0005] Currently, the existing equipment and tools for removing electrode caps cannot meet the removal needs of all welding clamp electrode caps, and have poor practicality and compatibility. The equipment of the present invention can meet the current needs of removing all welding clamp electrode caps, and has better practicality and compatibility. Utility Model Content

[0006] In response to the problems existing in the prior art, the utility model adopts the following technical solutions: a pliers-type cap removal wrench, comprising an upper jaw and a lower jaw, the upper jaw being fixedly connected to the upper jaw handle, and the lower jaw being fixedly connected to the lower jaw handle, the upper jaw and the lower jaw being hinged by a rotating shaft, and U-shaped protrusions of the same size and shape being provided in the U-shaped jaws of the upper jaw and the lower jaw, the thickness of the U-shaped protrusions of the upper jaw and the U-shaped protrusions of the lower jaw after superposition is less than the height of the annular gap between the electrode cap and the electrode rod.

[0007] Furthermore, the hinged connection is in the form of up-and-down hinged connection or X-shaped hinged connection.

[0008] Furthermore, the articulation method is up and down articulation.

[0009] Furthermore, the upper and lower jaw handles are long round rods, and one end of the long round rod is provided with a cylindrical notch which is nested and assembled with the cylindrical pin of the upper jaw or the lower jaw.

[0010] Furthermore, a spring assembly in a compressed state is provided between the upper pliers handle and the lower pliers handle.

[0011] Compared with the prior art, the advantages of the present invention are:

[0012] It is easy to carry, has low manufacturing cost, is easy to popularize, and is simple to use and operate.

[0013] By inserting the U-shaped protrusions of the upper and lower jaws into the joint between the electrode cap and the electrode rod, the wrench is used to separate the upper and lower jaws to remove the electrode cap from the electrode rod. This simple operation, fast removal, and high efficiency increase the speed of cap removal and replacement. Furthermore, the purely manual mechanical structure is easy to carry, low in cost, and easily popularized in production workshops. Replacement can be performed directly on-site, without the need to disassemble the electrode arm and then move the entire assembly to a fixed large-scale cap removal device for disassembly. This greatly reduces disassembly time and downtime, improving work efficiency and increasing enterprise production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention and the electrode cap and electrode rod in working state;

[0015] Figure 2 Schematic diagram of the three-dimensional structure of the upper jaw and the lower jaw;

[0016] Figure 3 It is a three-dimensional structural diagram of the utility model and the electrode rod in working state.

[0017] Description of the numbers in the figure:

[0018] 1. Upper jaw, 2. Lower jaw, 3. Rotating shaft, 4. U-shaped protrusion, 5. Electrode cap, 6. Electrode rod, 11. Upper jaw handle, 21. Lower jaw handle. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention; Example

[0020] like Figure 1-3As shown, a pliers-type cap removal wrench comprises an upper jaw 1 and a lower jaw 2, the upper jaw 1 is fixedly connected to an upper jaw handle 11, and the lower jaw 2 is fixedly connected to a lower jaw handle 21, the upper jaw 1 and the lower jaw 2 are hinged by a rotating shaft 3, and U-shaped jaws of the upper jaw 1 and the lower jaw 2 are provided with U-shaped protrusions 4 of the same size and shape, the thickness of the U-shaped protrusion 4 of the upper jaw 1 and the U-shaped protrusion 4 of the lower jaw 2 after superposition is less than the height of the annular gap 7 between the electrode cap 5 and the electrode rod 6, the hinging method is upper and lower hinging, the upper jaw handle 11 and the lower jaw handle 21 are long round rods, and one end of the long round rod is provided with a cylindrical notch which is nested and assembled with the cylindrical pin of the upper jaw 1 or the lower jaw 2.

[0021] The jaws are hinged up and down, and the jaws open when the upper and lower jaw handles are closed; the upper jaw 1 and the lower jaw 2 can also be hinged in an X-shape, and the jaws open when the upper and lower jaw handles are separated.

[0022] When the upper jaw 1 and the lower jaw 2 can be hinged in an X-shaped manner, a spring assembly in a compressed state can be provided between the upper jaw handle 11 and the lower jaw handle 21. The spring can provide auxiliary elastic force when the lower jaw handle is separated, thereby facilitating force application and providing force assistance.

[0023] Compared with the prior art, the advantages of the present invention are:

[0024] (1) Easy to carry, low manufacturing cost, easy to popularize, and simple to use.

[0025] By inserting the U-shaped protrusions of the upper and lower jaws into the joint between the electrode cap and the electrode rod, the wrench is used to separate the upper and lower jaws to remove the electrode cap from the electrode rod. This simple operation, fast removal, and high efficiency increase the speed of cap removal and replacement. Furthermore, the purely manual mechanical structure is easy to carry, low in cost, and easily popularized in production workshops. Replacement can be performed directly on-site, without the need to disassemble the electrode arm and then move the entire assembly to a fixed large-scale cap removal device for disassembly. This greatly reduces disassembly time and downtime, improving work efficiency and increasing enterprise production capacity.

[0026] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any person skilled in the art who, within the technical scope disclosed in the present invention, makes equivalent substitutions or modifications based on the technical solutions and improved concepts of the present invention shall be covered by the scope of protection of the present invention.

Claims

1. A pliers-type cap removal wrench, characterized in that: It includes an upper jaw and a lower jaw, the upper jaw is fixedly connected to the upper jaw handle, and the lower jaw is fixedly connected to the lower jaw handle. The upper jaw and the lower jaw are hinged by a rotating shaft, and U-shaped jaws of the upper jaw and the lower jaw are provided with U-shaped protrusions of the same size and shape. The thickness of the U-shaped protrusion of the upper jaw and the U-shaped protrusion of the lower jaw after superposition is less than the height of the annular gap between the electrode cap and the electrode rod.

2. The pliers-type cap removal wrench according to claim 1, characterized in that: The hinged connection is in the form of up-and-down hinge or X-shaped hinge.

3. The pliers-type cap removal wrench according to claim 2, characterized in that: The hinge mode is upper and lower hinge.

4. The pliers-type cap removal wrench according to claim 1, characterized in that: The upper and lower jaw handles are long round rods, one end of which is provided with a cylindrical notch which is nested and assembled with the cylindrical latch of the upper jaw or the lower jaw.

5. The pliers-type cap removal wrench according to claim 1, characterized in that: A spring assembly in a compressed state is provided between the upper pliers handle and the lower pliers handle.

Images