Manual welding pliers

Abstract

The utility model discloses a pair of manual welding tongs, relates to the technical field of manual welding tongs, and solves the problems that in the using process of the manual welding tongs, an operator needs to hold the welding tongs all the time to keep a fixed clamping state of a welding rod, the difficulty of welding operation of the operator is increased, other operations of the operator are inconvenient, and the working efficiency is high. Use and operation are inconvenient, and certain limitation exists. A pair of manual welding tongs comprises a handle; the handle is of a hollow cylindrical structure, and a rectangular through groove structure is formed in the front end of the handle. A bottom plate with a rectangular plate structure is fixedly arranged at the bottom of the rectangular through groove in the front end of the handle; a rack is fixedly arranged on one side of the top of the bottom plate; a fixing rod of a rectangular rod structure is fixedly arranged on the rear side of the top of the bottom plate, and the outer side of the fixing rod is sleeved with a spring. Connecting blocks are slidably arranged on the outer sides of the fixing rods. An operator does not need to pinch the connecting block all the time, so that the operator can carry out other operations conveniently, and use is more convenient.

Description

Technical Field

[0001] The utility model belongs to the technical field of manual welding tongs, and more specifically, particularly relates to a manual welding tongs. Background Art

[0002] A manual welding tongs (also known as a welding fixture or welding handle) is a tool used to hold an electrode (welding rod) during welding operations. Correct use of the welding tongs can not only improve the welding quality but also ensure the safety of the operator.

[0003] After retrieval, for example, the patent with the patent number CN201543986U discloses a manual electric welding tongs. It includes an insulating handle, upper and lower clamp jaws, and a tension spring arranged between the upper and lower clamp jaws. A control switch for controlling the on / off of the power supply of the electric welding machine is arranged inside the insulating handle, and the control switch is connected in series to the power supply control circuit of the electric welding machine. Since a control switch that can control the on / off of the power supply of the electric welding machine is connected in series to the power supply control circuit of the electric welding machine, it can effectively prevent the misconnection between the welding tongs and the object to be welded when the electric welding machine is not operating, solve the occurrence of misconnection accidents between the welding tongs and the object to be welded, and effectively provide a safe and reliable working environment for the operator. At the same time, the control switch can turn off the power supply of the electric welding machine at any time, thereby effectively reducing the power consumption of the electric welding machine itself and prolonging the service life of the electric welding machine. This welding tongs also has the characteristics of simple overall structure, convenient use, and safe and reliable operation.

[0004] The manual welding tongs in the above patent also have the following deficiencies:

[0005] During the use of the manual welding tongs in the above patent, the operator needs to keep pinching the welding tongs all the time to maintain the fixed clamping state of the welding rod, which increases the difficulty of the operator's welding operation, is not convenient for the operator to perform other operations, is not convenient for use and operation, and has certain limitations. Content of the Utility Model

[0006] In order to solve the above technical problems, the utility model provides a manual welding tongs to solve the problem that during the use of the manual welding tongs mentioned in the above background art, the operator needs to keep pinching the welding tongs all the time to maintain the fixed clamping state of the welding rod, which increases the difficulty of the operator's welding operation, is not convenient for the operator to perform other operations, is not convenient for use and operation, and has certain limitations.

[0007] The purpose and effect of a manual welding tongs of the utility model are achieved by the following specific technical means:

[0008] A manual welding pliers, comprising: a handle; the handle adopts a hollow cylindrical structure, and a rectangular through groove structure is provided at the front end of the handle; a bottom plate with a rectangular plate structure is fixedly arranged at the bottom of the rectangular through groove at the front end of the handle; a rack is fixedly arranged on one side of the top of the bottom plate; a fixing rod with a rectangular rod structure is fixedly arranged at the rear side of the top of the bottom plate, and a spring is sleeved on the outer side of the fixing rod; a connecting block is slidably arranged on the outer side of the fixing rod.

[0009] Further, a lower clamping plate with a circular plate structure is rotatably arranged on the top of the bottom plate, and a semi-circular groove structure is provided on the top of the lower clamping plate; a worm gear is fixedly arranged on the outer side of the rotating shaft of the lower clamping plate; a worm is rotatably arranged at the bottom of the bottom plate, and the worm is meshed with the worm gear.

[0010] Further, an upper clamping plate with a circular plate structure is rotatably connected to the front end of the connecting block, and a semi-circular groove structure is provided at the bottom of the upper clamping plate. A set of arc-shaped groove structures are provided on both sides of the bottom of the upper clamping plate, and a set of screw hole structures are provided on both sides of the top of the upper clamping plate; a set of screws are rotatably arranged in the screw holes on both sides of the top of the upper clamping plate through thread fit; the bottom end of the screw is rotatably connected with a set of limiting blocks with arc-shaped plate structures, and the limiting blocks match the arc-shaped grooves at the bottom of the upper clamping plate in size.

[0011] Further, a side plate with an L-shaped block structure is fixedly arranged on one side of the connecting block, and a through circular through groove structure is provided on one side of the side plate; a sliding rod with a cylindrical structure is slidably arranged in the circular through groove on one side of the side plate, and a spring is sleeved on the outer side of the sliding rod; one end of the sliding rod is fixedly connected with a clamping block with a wedge-shaped block structure.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In this application, the upper clamping plate and the lower clamping plate can be kept in a clamping state for the welding rod. At this time, it is not necessary for the operator to always hold the connecting block, which is convenient for the operator to perform other operations and is more convenient to use. When it is necessary to loosen the welding rod, the sliding rod is pulled outward along the side plate, so that the clamping block loses the clamping state with the rack, and then the connecting block and the upper clamping plate can be lifted, so as to lose the clamping state for the welding rod, which is convenient for the operator to operate and use.

[0014] The orientation of the welding rod can be adjusted, so that when processing from different angles, the angle of the welding rod can be directly adjusted, and it is not necessary for the staff to adjust the holding direction, which further facilitates the operation during the welding process and is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an overall axonometric structural schematic diagram of the utility model.

[0016] Figure 2It is a schematic top view structure diagram of the present utility model.

[0017] Figure 3 It is a schematic bottom view structure diagram of the present utility model.

[0018] Figure 4 It is a schematic structure diagram of the connection relationship between the connecting block and the upper clamping plate of the present utility model.

[0019] Figure 5 It is a schematic structure diagram of the disassembly of the upper clamping plate and the screw rod of the present utility model.

[0020] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:

[0021] 1. Handle; 101. Base plate; 102. Lower clamping plate; 103. Worm gear; 104. Worm; 105. Rack; 106. Fixed rod; 107. Connecting block; 108. Upper clamping plate; 109. Screw rod; 110. Limiting block; 111. Side plate; 112. Slide rod; 113. Clamping block. Specific embodiments

[0022] The following further describes the embodiments of the present utility model in detail with reference to the drawings and examples.

[0023] Embodiment 1:

[0024] As shown in Figure 1 to Figure 5 shown:

[0025] The present utility model provides a manual welding clamp, including: a handle 1; the handle 1 adopts a cylindrical structure with a hollow interior, and a rectangular through groove structure is provided at the front end of the handle 1; a base plate 101 in the form of a rectangular plate structure is fixedly provided at the bottom of the rectangular through groove at the front end of the handle 1; a rack 105 is fixedly provided on one side of the top of the base plate 101; a fixed rod 106 in the form of a rectangular rod structure is fixedly provided at the rear side of the top of the base plate 101, and a spring is sleeved outside the fixed rod 106; a connecting block 107 is slidably provided outside the fixed rod 106.

[0026] Among them, a circular plate-shaped upper clamping plate 108 is rotatably connected to the front end of the connecting block 107, a semi-circular groove structure is provided at the bottom of the upper clamping plate 108, a group of arc-shaped groove structures are provided on both sides of the bottom of the upper clamping plate 108, and a group of screw hole structures are provided on both sides of the top of the upper clamping plate 108; a group of screw rods 109 are rotatably arranged in the screw holes on both sides of the top of the upper clamping plate 108 through thread fit; an arc-shaped plate-shaped limiting block 110 is rotatably connected to the bottom end of the screw rod 109, and the limiting block 110 matches the size of the arc-shaped groove at the bottom of the upper clamping plate 108.

[0027] Among them, one side of the connecting block 107 is fixedly provided with a side plate 111 of an L-shaped block structure, and a through circular through groove structure is provided on one side of the side plate 111; a sliding rod 112 of a cylindrical structure is slidably arranged in the circular through groove on one side of the side plate 111, and a spring is sleeved outside the sliding rod 112; one end of the sliding rod 112 is fixedly connected with a clamping block 113 of a wedge-shaped block structure.

[0028] Specific usage method and function of this embodiment:

[0029] During use, hold the handle 1, place the welding rod in the arc-shaped groove on the lower clamping plate 102, and then adjust the positions of the two groups of limiting blocks 110 according to the thickness of the welding rod. Rotate the screw rod 109 to drive the limiting blocks 110 to extend out from the arc-shaped groove at the bottom of the upper clamping plate 108. After extending to an appropriate distance, stop rotating the screw rod 109 to limit the limiting blocks 110. Then, press the connecting block 107, so that the connecting block 107 can slide downward along the fixed rod 106, thereby synchronously driving the upper clamping plate 108 to move downward, so that the upper clamping plate 108 and the lower clamping plate 102 are combined and connected. At this time, the two groups of limiting blocks 110 at the bottom of the upper clamping plate 108 can contact the welding rod, and cooperate with the lower clamping plate 102 to fix and clamp the welding rod. During the downward movement of the connecting block 107, the side plate 111 and the clamping block 113 are synchronously driven to move downward. When the clamping block 113 contacts the inclined surface of the rack 105, the clamping block 113 and the sliding rod 112 can be retracted along the side plate 111 to one side, so that during the downward sliding process, the connecting block 107 will not be limited. When the fixing and clamping of the welding rod are completed, the flat structure of the clamping block 113 is engaged with the flat structure of the rack 105, and the clamping block 113 will be limited, so that the connecting block 107 cannot slide upward by itself, so that the upper clamping plate 108 and the lower clamping plate 102 can maintain the clamping state of the welding rod. At this time, it is not necessary for the operator to always hold the connecting block 107, which is convenient for the operator to perform other operations and is more convenient to use. When it is necessary to loosen the welding rod, pull the sliding rod 112 outward along the side plate 111, so that the clamping block 113 loses the engagement state with the rack 105, and the connecting block 107 and the upper clamping plate 108 can be lifted, so as to lose the clamping state of the welding rod.

[0030] Embodiment 2:

[0031] On the basis of Embodiment 1, as shown in Appendix Figure 1 to Appendix Figure 5 shown:

[0032] Among them, a lower clamping plate 102 with a circular plate-shaped structure is rotatably arranged on the top of the bottom plate 101, and a semi-circular groove structure is formed on the top of the lower clamping plate 102; a worm gear 103 is fixedly arranged on the outer side of the rotating shaft of the lower clamping plate 102; a worm 104 is rotatably arranged on the bottom of the bottom plate 101, and the worm 104 is meshed with the worm gear 103.

[0033] Specific usage method and function of this embodiment:

[0034] In the present utility model, when welding operations need to be carried out from different angles, the worm 104 can be rotated to drive the worm gear 103 to rotate, thereby synchronously driving the lower clamping plate 102 to rotate, and the welding rod and the upper clamping plate 108 are synchronously driven to rotate through the semi-circular groove on the lower clamping plate 102, so that the orientation of the welding rod can be adjusted. When processing from different angles, the angle of the welding rod can be directly adjusted, without the need for the operator to adjust the holding direction, which further facilitates the operation during the welding process and is more convenient to use.

Claims

1. A manual welding tongs, characterized in that Including: A handle (1); the handle (1) adopts a hollow cylindrical structure, and a rectangular through groove structure is provided at the front end of the handle (1); a bottom plate (101) with a rectangular plate structure is fixedly arranged at the bottom of the rectangular through groove at the front end of the handle (1); a rack (105) is fixedly arranged on one side of the top of the bottom plate (101); a fixing rod (106) with a rectangular rod structure is fixedly arranged at the rear side of the top of the bottom plate (101), and a spring is sleeved on the outer side of the fixing rod (106); a connecting block (107) is slidably arranged on the outer side of the fixing rod (106).

2. The manual welding tongs according to claim 1, wherein: A lower clamping plate (102) with a circular plate structure is rotatably arranged on the top of the bottom plate (101), and a semi-circular groove structure is provided at the top of the lower clamping plate (102); a worm gear (103) is fixedly arranged on the outer side of the rotating shaft of the lower clamping plate (102).

3. The manual welding tongs according to claim 1, characterized in that: A worm (104) is rotatably arranged at the bottom of the bottom plate (101), and the worm (104) is meshed with the worm gear (103).

4. The manual welding tongs according to claim 1, characterized in that: The front end of the connecting block (107) is rotatably connected with an upper clamping plate (108) with a circular plate structure, and a semi-circular groove structure is provided at the bottom of the upper clamping plate (108), a group of arc-shaped groove structures are provided on both sides of the bottom of the upper clamping plate (108), and a group of screw hole structures are provided on both sides of the top of the upper clamping plate (108).

5. The manual welding tongs according to claim 4, characterized in that: A group of screws (109) are rotatably arranged in the screw holes on both sides of the top of the upper clamping plate (108) through thread fit; the bottom ends of the screws (109) are rotatably connected with a group of limiting blocks (110) with arc-shaped plate structures, and the limiting blocks (110) match the arc-shaped grooves at the bottom of the upper clamping plate (108) in size.

6. The manual welding tongs according to claim 1, characterized in that: A side plate (111) with an L-shaped block structure is fixedly arranged on one side of the connecting block (107), and a through circular through groove structure is provided on one side of the side plate (111).

7. The manual welding tongs according to claim 6, characterized in that: A sliding rod (112) with a cylindrical structure is slidably arranged in the circular through groove on one side of the side plate (111), and a spring is sleeved on the outer side of the sliding rod (112); one end of the sliding rod (112) is fixedly connected with a clamping block (113) with a wedge-shaped block structure.

Images