JPH0677975U - Electrode tip holder - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide an electrode tip holder capable of easily attaching and detaching a lightning pole tip and securely holding an electrode tip. [Structure] Mainly consists of electric heating rod, end cap and grip. The end of the heating rod is connected to the grip and the front end is screwed into the threaded sleeve in the end cap. Set at an angle and insert one end of the electrode tip into the threaded sleeve, the wire passes through the grip, enters the heating rod, contacts the heating rod and becomes conductive, and the heating rod axially moves depending on the rotating direction of the grip. Move back and forth to attach and detach the electrode tip.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a type of electrode tip holder, and more particularly to an electrode tip holder that can easily hold and release a chip by moving a grip forward and backward.

[0002]

[Prior art]

 Shown in FIG. 1 is a conventional electrode tip holder. As shown in this figure, the conventional electrode tip holder is mainly provided with the main clamp rod (10) and the auxiliary clamp rod (20) pivotally connected to each other, and the clamp surface (30) is provided with the tension of the spring (40). The electrode tip was sandwiched by the action and used for welding. The main drawback of this main electrode tip holder is that the holding force of the electrode tip is unstable, which adversely affects the welding effect. In addition, when installing the electric wire (50), the spring base (60) must be pulled up and the grip (70) must be pulled out. Further, the covering part (80) using bakelite should be protected by the spring (40) and heating. There were drawbacks such as aging and the possibility of rupture and damage. Therefore, the development of an electrode tip holder that solves these drawbacks has been awaited.

[0003]

[Problems to be solved by the device]

 An object of the present invention is to solve the drawbacks of the prior art, to provide an electrode tip holder which can easily attach and detach the electrode tip and can surely hold the electrode tip.

[0004]

[Means for Solving the Problems]

 The present invention mainly provides an electrode holder comprising a heating rod (1), an end cap (2) and a grip (3), connecting the end of the heating rod (1) and the grip (3), The front end is screwed into the threaded sleeve (21) in the end cap (2) and moved back and forth in the axial direction, and the end cap (2) has several insertion holes (23) at predetermined angles. Insert one end of the welding electrode tip into the insertion hole (23) and insert it into the threaded sleeve (21). Further, the grip (3) allows the electric wire (4) to pass through in the axial direction, and the electric wire (4) enters the electric heating rod (1) and comes into contact with the electric heating rod (1) to conduct electricity.

[0005]

[Action]

 Insert one end of the welding electrode tip into the insertion hole (23) of the end cap (2), insert it into the threaded sleeve (21) insertion hole (24), and rotate the grip (1) to attach the heating rod (1). The electrode tip (5) is held in the axial direction by interlocking movement, and the grip (1) is rotated in the opposite direction to retract the heating rod (1) in the axial direction to release the electrode tip, and the electrode tip is released. Attach and detach.

[0006]

【Example】

 Examples will be described with reference to the drawings. As shown in FIGS. 2 and 3, the present invention is mainly an electrode holder consisting of a heating rod (1), an end cap (2), and a grip (3). The electrode tip holder shown in FIG. 3 is formed by molding into the shape shown and then fitting and screwing.

Next, each component will be described. First, the electric heating rod (1) is made into a shape as shown in FIGS. 2 and 3 by using a material such as copper having good heat and electric conductivity. The end of the electric heating rod (1) (right half of the figure) is a hexagonal joint (11), which is inserted into the insertion hole (31) of the grip (3) to connect the electric heating rod (1) and the grip (3). However, both rotate at the same time. The electric heating rod (1) is provided with a lateral hole (13) which is not penetrated in the axial direction and accommodates the electric wire (4).

On the joint portion (11), a female screw (14) is provided in the radial direction perpendicular to the lateral hole (13), and a headless screw (15) is screwed in to lock the electric wire (4). (4) contacts the heating rod (1) and becomes conductive.

Further, the diameter of the front end portion (left half in the figure) of the electric heating rod (1) is reduced in the axial direction so as to have a different diameter. A male screw (12) is provided in the middle of the electric heating rod (1) and the end cap (2 ) In the threaded sleeve (21). Therefore, when the grip (3) is rotated, the electric heating rod (1) also rotates and moves back and forth in the axial direction to hold and release the electrode tip.

The end cap (2) is, as shown in FIGS. 2 and 3, the end cap (2) using an electrically and heat insulating material such as Bakelite, and the front end part (2). Is molded into a sealed hollow body, and a sleeve (21) made of copper having good conductivity and heat conductivity is fitted into the hollow body. A metal cover (22) is provided on the outside of the end cap (2), and several insertion holes are formed on the circumference of the metal cover (22), the end cap (2) and the threaded sleeve (21). (25), (23) and (24) are provided respectively. In the embodiment of the present invention, three insertion holes (25), (23) and (24) are provided at 90 °, 45 ° and 35 °, respectively, and selected according to the angle required for welding. To do. The angle of this insertion hole belongs to the spirit and scope of the present invention, and the embodiment shown in the drawings is described by way of example, and is not limited to a specific angle.

The diameter of the insertion hole (25) on the metal cover (22) is the same as the insertion hole (23) of the end cap (2) and the insertion hole (24) of the threaded sleeve (21). The diameter is set larger than the diameter to prevent contact between the electrode tip (5) and the metal cover (22).

The metal cover (22) protects the end cap (2) and prevents the end cap (2) from being aged due to electricity and heat and from being dropped and cracked.

Next, the grip (3) will be described. As shown in FIGS. 2 and 3, the grip (3) is a hollow body that is molded of electrically and thermally insulating material and can be gripped with one hand. The grip (3) is provided with an insertion hole (31) in the axial direction that widens the joint (11) of the electric heating rod (1), and the joint (11) is inserted and both are fixed. And integrate.

The inner diameter of the insertion hole (31) is set to be slightly larger than the outer diameter of the joint portion (11) so that when the joint portion (11) is inserted into the insertion hole (31), it is tightly fixed and There is no need to connect by parts. This connection technology is well known and will not be described in detail here. Further, the insertion hole (31) allows the electric wire (4) to penetrate therethrough into which the joint portion (11) is inserted, and the electric wire (4) enters the lateral hole (13) of the heating rod (1) and conducts electricity.

Finally, a method of using the present invention will be described with reference to FIG. At the time of use, one end of the electrode tip (5) is inserted into the threaded sleeve (21) via the aforementioned insertion holes (23) to (25), and then the grip (3) is rotated to rotate the heating rod ( 1) is moved axially forward, and the end portion (16) of the heating rod (1) supports the electrode tip (5). Thus, the electrode tip (5) is held by the electrode tip holder. Furthermore, when removing or replacing the electrode tip (5), the grip (3) is rotated in the opposite direction, the electric heating rod (1) is axially retracted, and the electrode tip (5) is released. It is possible to remove the electrode tip (5).

[0016]

[Effect of device]

 As described above, the electrode tip holder of the present invention is convenient for use because it can hold and release the electrode tip with a simple operation of simply rotating the grip and releasing it. Is useful in.

[Brief description of drawings]

FIG. 1 is an axial cross-sectional view of a conventional electrode tip holder.

FIG. 2 is an exploded perspective view of the present invention.

FIG. 3 is an axial cross-sectional view of the electrode tip holder of the present invention sandwiching the electrode tip.

[Explanation of symbols]

10 ... Main clamp rod 20 ... Sub clamp rod 30 ... Clamping surface 40 ... Spring 50 ... Electric wire 60 ... Spring base 70 ... Grip 80 ... Coating 1.・ Electric heating rod 2 ... End cap 3
・ ・ ・ Handle 4 ・ ・ ・ Wire 5 ・ ・ ・ Electrode tip 11
・ ・ ・ Joined part 12 ・ ・ ・ Male thread 13 ・ ・ ・ Side hole 1
4 ... Female screw 15 ... Headless screw 16 ... End part 2
1 ... Threaded sleeve 22 ... Metal cover 23, 24, 25 ... Insert hole 31 ... Insert hole

Claims (2)

[Scope of utility model registration request] (A) An electrode holder mainly comprising an electric heating rod (1), an end cap (2) and a grip (3). (B) The electric heating rod (1) is made of a material having good electrical conductivity and thermal conductivity, and the end portion is the joint portion (11), and the joint portion (11) is provided with the lateral hole (13) in the axial direction. Electric wire (4)
To accommodate the female screw (1
4) is provided, the screw is inserted to lock the electric wire, the diameter of the front end portion is smaller than that of the joint portion (11), and the male screw (12) is provided at the middle portion. (C) The end cap (2) is a hollow body whose front end is sealed by using an insulating material against electricity and heat. Inside, a threaded sleeve (21) made of a good conductor is provided, and the threaded sleeve (21 ) The male thread (12) of the electric heating rod (1) is screwed into the threaded portion of (1), a metal cover (22) is provided on the outside, and the metal cover (22), the end cap (2) and the threaded sleeve ( 21) Insertion holes (25) (2) for adjusting the angle of the electrode to be inserted
3) Provide (24) respectively. (D) The grip (3) is made of an insulating material against electricity and heat so that it can be easily gripped by hand, and an insertion hole (31) having a shape corresponding to the joint (11) is provided along the axial direction, Insert the joint (11), connect the grip (3) and the body, pass the electric wire (4) through the grip (3), and then heat the heating rod (1).
Through the side hole (13). (E) With the above configuration, one end of the welding electrode tip (5) is inserted into the insertion hole (24) of the threaded sleeve (21), and the grip (1) is rotated to attach the heating rod (1). The electrode tip (5) is moved back and forth in the axial direction in conjunction with each other.
Electrode tip holder that holds and enjoys 2. An insertion hole (25) (24) according to claim 1.
Three pieces of (23) are provided at angles of 90 °, 45 °, and 35 °, respectively, and the insertion holes (2) of the metal cover (22) are provided.
5. The electrode tip holder according to claim 1, characterized in that the diameter of 5) is smaller than the diameter of the holes of the end caps (2) and the insertion holes (24) (23) of the threaded sleeve (21).