Limiting tool for welding of cable metal sleeve

Abstract

The utility model discloses a cable metal sleeve welding limiting tool which comprises an installation part and a limiting part, a first through hole is formed in the installation part, the limiting part is arranged at one end of the installation part, a second through hole coaxial with the first through hole is formed in the limiting part, a limiting notch is formed in the top of the installation part, and the limiting notch is used for a welding gun to conduct welding. According to the limiting tool for welding of the cable metal sleeve, the limiting opening in the top of the limiting part can facilitate welding of a welding gun on a joint of a metal layer, the limiting part plays a supporting role on the lower portion, and a cable core wrapping the metal layer passes through the first through hole and the second through hole of the mounting part and the limiting part; the first through hole and the second through hole can play a role in limiting the cable core, so that the shaking of the cable core during welding is reduced, the welding is convenient, and the welding yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cable processing, in particular to a position limiting tool for welding a cable metal sleeve. Background Art

[0002] Cables are usually rope-like cables made of several or several groups of wires twisted together. Each group of wires is insulated from each other and often twisted around a center. The entire outer layer is covered with a highly insulating covering. The cable has the characteristics of being powered inside and insulated outside. Fireproof cable is a branch of the cable. Fireproof cable refers to a cable that can maintain safe operation for a certain period of time under the condition of flames. Fireproof cable is widely used in high-rise buildings, subways, underground streets, large power stations and important industrial and mining enterprises and other places related to fire safety and firefighting lifesaving.

[0003] During the production process of cables, a metal layer is usually sheathed on the outside of the cable core. It is usually made of aluminum or copper. The metal layer needs to be cut into a suitable width before being sheathed on the cable core, and then it is shaped and sheathed on the outer surface of the cable core. Finally, it is welded at the seam to fix the metal layer. When welding the metal layer, the limit seat is selected according to the outer diameter of the metal layer, and the position of the welding gun is adjusted. However, when the cable passes through the existing limit seat for welding, the welding point is prone to jitter, which leads to welding failure, and then leads to a decrease in the yield rate of cable production. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a position limiting tool for welding a cable metal sleeve.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] The utility model discloses a limiting tool for welding a cable metal sleeve, comprising a mounting part and a limiting part, wherein the mounting part is provided with a first through hole, the limiting part is arranged at one end of the mounting part, the limiting part is provided with a second through hole coaxial with the first through hole, and a limiting notch is formed on the top of the mounting part, and the limiting notch is used for welding with a welding gun.

[0007] As a preferred technical solution of the utility model, a connecting portion is provided at one end of the limiting portion close to the mounting portion, and a third through hole coaxial with the second through hole is provided on the connecting portion. The outer diameter of the connecting portion is adapted to the inner diameter of the first through hole and can be inserted into the first through hole.

[0008] As a preferred technical solution of the utility model, it also includes a nut, an external thread is provided on the end of the outer periphery of the connecting part away from the limiting part, the nut is located at the end of the mounting part away from the limiting part, and is threadedly connected with the external thread to fix the limiting part on the mounting part.

[0009] As a preferred technical solution of the utility model, the outer circumference of the connecting portion is provided with an external thread, the first through hole is provided with an internal thread matched with the external thread, and the limiting portion is installed on the mounting portion through the threaded connection between the external thread and the internal thread.

[0010] As a preferred technical solution of the utility model, it also includes a mounting frame, one end of which is provided with a mounting groove matched with the mounting part, and the mounting part is installed in the mounting groove.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The limiting opening at the top of the limiting part can facilitate the welding of the joint of the metal layer by the welding gun, and the limiting part plays a supporting role at the bottom. The cable core coated with the metal layer passes through the first through hole and the second through hole of the mounting part and the limiting part. The first through hole and the second through hole can both play a limiting role on the cable core, reduce the jitter of the cable core during welding, facilitate welding, and improve the welding yield rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the utility model;

[0016] Figure 3 It is one of the cross-sectional structural schematic diagrams of the utility model;

[0017] Figure 4 This is the second schematic diagram of the cross-sectional structure of the utility model;

[0018] In the figure: 1. mounting portion; 2. limiting portion; 3. first through hole; 4. second through hole; 5. limiting notch; 6. connecting portion; 7. third through hole; 8. external thread; 9. nut; 10. internal thread; 11. mounting bracket; 12. mounting groove. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0020] In the drawings, the same reference numerals all refer to the same components.

[0021] like Figure 1-4 As shown, the utility model provides a limiting tool for cable metal sleeve welding, including a mounting portion 1 and a limiting portion 2, the mounting portion 1 is provided with a first through hole 3, the limiting portion 2 is arranged at one end of the mounting portion 1, the limiting portion 2 is provided with a second through hole 4 coaxial with the first through hole 3, and a limiting notch 5 is opened on the top of the mounting portion 1, and the limiting notch 5 is used for welding with a welding gun.

[0022] In this embodiment, the metal coil is cut and then covered on the outer surface of the cable core to form a metal layer, and the seam of the metal layer is directed upwards to facilitate welding of the seam with a welding gun, so that the metal layer is completely covered and fixed on the outer surface of the cable core;

[0023] During welding, first adjust the welding gun to a suitable height and place the welding gun above the limiting notch 5. The cable core and its metal layer pass through the first through hole 3 and the second through hole 4 and keep moving continuously. The mounting portion 1 and the limiting portion 2 support and limit the cable core and its metal layer to prevent the metal layer from shaking during welding. The seam of the metal layer is exposed to the outside through the limiting notch 5, so that the welding gun can weld the seam of the metal layer at the limiting notch 5. During welding, the limiting portion 2 supports and limits the bottom of the cable core.

[0024] The cable core and its metal layer pass through the first through hole 3 and the second through hole 4 , or first pass through the second through hole 4 and then pass through the first through hole 3 , as long as the welding gun is located above the limiting notch 5 .

[0025] Furthermore, a connecting portion 6 is provided at one end of the limiting portion 2 close to the mounting portion 1 , and a third through hole 7 coaxial with the second through hole 4 is provided on the connecting portion 6 . The outer diameter of the connecting portion 6 is adapted to the inner diameter of the first through hole 3 and can be inserted into the first through hole 3 .

[0026] In this embodiment, since the outer diameter of the cable core is different, the outer diameter of the coated metal layer will also change, so it is necessary to replace the limiting tooling corresponding to the outer diameter;

[0027] The outer diameter of the connecting portion 6 is matched with the inner diameter of the first through hole, and the limiting portion 2 can be inserted into the first through hole 3 of the mounting portion 1 through the connecting portion 6 to achieve connection with the mounting portion 1;

[0028] The apertures of the second through hole 5 and the third through hole 7 are the same. By setting the apertures of the second through hole 5 and the third through hole 7, the limiting portion 2 and the connecting portion 6 can limit cable cores with different outer diameters without replacing the mounting portion 1. This detachable design reduces the processing cost of the limiting tooling and improves adaptability.

[0029] Furthermore, it also includes a nut 9. An external thread 8 is provided on the end of the outer periphery of the connecting part 6 away from the limiting part 2. The nut 9 is located at the end of the mounting part 1 away from the limiting part 2 and is threadedly connected to the external thread 8 to fix the limiting part 2 on the mounting part 1.

[0030] In this embodiment, the nut 9 is threadedly connected to the external thread 8 on the outer periphery of the connecting portion 6, so that the limiting portion 2 and the connecting portion 6 are fixed on the mounting portion 1, so as to increase the stability of the limiting portion 2 and the connecting portion 6 installed on the mounting portion 1;

[0031] At this time, the first through hole 3 plays a role in installation, and the cable core and its metal layer are supported and limited through the second through hole 4 and the third through hole 7.

[0032] Furthermore, an external thread 8 is provided on the outer periphery of the connecting portion 6 , an internal thread 10 matching the external thread 8 is provided in the first through hole 3 , and the limiting portion 2 is installed on the mounting portion 1 through threaded connection between the external thread 8 and the internal thread 10 .

[0033] In this embodiment, the external thread 8 of the connecting portion 6 is threadedly connected with the internal thread 10 in the first through hole 3, so that the limiting portion 2 and the connecting portion 6 are fixed on the mounting portion 1 to increase the stability of the limiting portion 2 and the connecting portion 6 installed on the mounting portion 1;

[0034] At this time, the first through hole 3 plays a role in installation, and the cable core and its metal layer are supported and limited through the second through hole 4 and the third through hole 7.

[0035] Furthermore, it also includes a mounting frame 11 , one end of which is provided with a mounting groove 12 adapted to the mounting portion 1 , and the mounting portion 1 is installed in the mounting groove 12 .

[0036] In this embodiment, the mounting groove 12 of the mounting frame 11 is used to mount and fix the mounting portion 1 , and a fastening mechanism using the prior art is provided on the top of the mounting frame 11 , which can fix the mounting plate 1 in the mounting groove 12 .

[0037] The utility model discloses a limiting tool for welding a cable metal sleeve. The limiting opening at the top of the limiting part can facilitate the welding of the joint of the metal layer by the welding gun, and the limiting part plays a supporting role below. The cable core coated with the metal layer passes through the first through hole and the second through hole of the installation part and the limiting part. The first through hole and the second through hole can both play a limiting role on the cable core, reduce the shaking of the cable core during welding, facilitate welding, and improve the welding yield rate.

[0038] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A position limiting tool for welding a cable metal sleeve, characterized in that: The invention comprises a mounting portion (1) and a limiting portion (2), wherein the mounting portion (1) is provided with a first through hole (3), the limiting portion (2) is arranged at one end of the mounting portion (1), the limiting portion (2) is provided with a second through hole (4) coaxial with the first through hole (3), and a limiting notch (5) is provided at the top of the mounting portion (1), wherein the limiting notch (5) is used for welding with a welding gun.

2. A position limiting tool for cable metal sleeve welding according to claim 1, characterized in that: A connecting portion (6) is provided at one end of the limiting portion (2) close to the mounting portion (1); a third through hole (7) coaxial with the second through hole (4) is provided on the connecting portion (6); the outer diameter of the connecting portion (6) matches the inner diameter of the first through hole (3) and can be inserted into the first through hole (3).

3. A position limiting tool for cable metal sleeve welding according to claim 2, characterized in that: It also comprises a nut (9); an external thread (8) is provided on the outer circumference of the connecting portion (6) at one end away from the limiting portion (2); the nut (9) is located at the end of the mounting portion (1) away from the limiting portion (2) and is threadedly connected to the external thread (8) to fix the limiting portion (2) on the mounting portion (1).

4. A position limiting tool for cable metal sleeve welding according to claim 2, characterized in that: An external thread (8) is provided on the outer periphery of the connecting portion (6), an internal thread (10) matching the external thread (8) is provided in the first through hole (3), and the limiting portion (2) is mounted on the mounting portion (1) via threaded connection between the external thread (8) and the internal thread (10).

5. A position limiting tool for cable metal sleeve welding according to any one of claims 1 to 4, characterized in that: It also comprises a mounting frame (11), one end of the mounting frame (11) is provided with a mounting groove (12) adapted to the mounting portion (1), and the mounting portion (1) is mounted in the mounting groove (12).

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