CN210967399U

CN210967399U - Self-adaptation pencil squaring welding machine

Info

Publication number: CN210967399U
Application number: CN201921585423.9U
Authority: CN
Inventors: 陈志豪
Original assignee: Gongqiao Intelligent Technology Foshan Co ltd
Current assignee: Gongqiao Intelligent Technology Foshan Co ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-07-10
Anticipated expiration: 2029-09-23

Abstract

The utility model relates to a self-adaptation pencil pressure side welding machine mainly includes intermediate frequency inverter power supply controller, intermediate frequency transformer, pressure side welding head. The square pressing welding head comprises an upper tungsten electrode 17, a lower tungsten electrode 22, an upper high-temperature ceramic 23 and a lower high-temperature ceramic 19. A square space is formed between the electrode and the high-temperature ceramic, and when the tungsten electrode above the electrode is pressed downwards, the middle of the electrode is always kept to be square. The wiring harness placed therein is pressed into a square shape. The power controller is firstly inverted into high-voltage pulse current, and the high-voltage pulse current is converted into low-voltage large current through a transformer. The large current passes through the upper tungsten electrode 17-the wire harness-the lower tungsten electrode 22. The contact part of the electrode and the wire harness has larger resistance, and can generate a large amount of joule heat which is transferred to the wire harness pressed in the middle and is welded together under the action of pressure. The current is concentrated from the tungsten electrode to the tungsten electrode through the wire harness, so that the joule heat is more concentrated.

Description

Self-adaptation pencil squaring welding machine

Technical Field

The utility model belongs to the welding field of pencil, concretely relates to pencil self-adaptation such as enameled wire, copper line is pressed side welded device.

Background

The existing hot-melt wire harness welding equipment presses a wire harness between an upper electrode and a lower electrode, and a large current flows through the wire harness from the upper electrode to the lower electrode. This allows the electrodes to generate a large amount of heat that is transferred to the wire harness and then fused together. The equipment generally needs to use a copper pipe for welding or a special electrode, and the machine head needs to be adjusted or the electrode needs to be replaced each time the specification of the wire harness is changed. Therefore, the specifications of the single wire harness are more and more, and the single wire harness is required to be adjusted frequently and is inconvenient to use.

Disclosure of Invention

The welding head needs to be adjusted and the copper terminal needs to be used when the specification of the wire harness is changed. The utility model provides a can the direct welded device of square of pressing of different pencil specifications of self-adaptation to all will remove to adjust welding head or change the electrode when not needing at every turn the pencil specification to change, improved the efficiency of work. Even the utility model discloses can exempt from to scrape the varnished wire's coat, also need not soldering tin and terminal, twist enameled wire and wire back lug weld together.

The purpose of the utility model is realized like this.

A self-adaptive wiring harness squaring welding machine mainly comprises a medium-frequency inverter welding power supply controller, a medium-frequency transformer and a squaring welding machine head as shown in figure 1.

The square pressing welding head, as shown in fig. 3, includes an upper tungsten electrode 17, a lower tungsten electrode 22, an upper high temperature ceramic 23, and a lower high temperature ceramic 19. Wherein neither the tungsten electrode nor the high temperature ceramic is horizontal or vertical, but is inclined at 45 degrees to the left and right of a vertical line. The tungsten electrode is fixed on the base, and the tail end of the high-temperature ceramic is provided with a spring which can slide up and down relative to the base.

In the square pressing welding head, a square space is formed between the tungsten electrode and the high-temperature ceramic, the wire harness is placed in the square pressing welding head, when the cylinder drives the tungsten electrode above to press down, the high-temperature ceramic can retract a point, and the middle of the high-temperature ceramic is always kept to be square. Thus, regardless of the wire harness size, the upper electrode is pressed down until the wire harness is compacted, and the wire harness is also squared.

In the pressure square welding machine, the intermediate frequency inverter power supply controller is firstly inverted into high-voltage intermediate frequency pulse current, and the high-voltage intermediate frequency pulse current is converted into low-voltage large current through the transformer. The large current comes out from one end of the secondary side of the transformer, passes through the upper tungsten electrode 17, the wiring harness and the lower tungsten electrode 22, and returns to the transformer to form a loop. The resistance of the contact part of the tungsten electrode and the wire harness is relatively high, so that a large amount of Joule heat can be generated at the contact part and transferred to the wire harness pressed in the middle, and the wire harness is welded together under the pressure action of the cylinder. Because the high-temperature ceramic is not conductive, the current can be concentrated from the tungsten electrode, passes through the wire harness and then directly returns to the transformer, so that the shunt is avoided, and the joule heat is more concentrated.

Above-mentioned square welding machine of pressing, during enameled wire and wire welding, the joule heat of production can let the enamel skin vaporization of enameled wire at first, and joule that produces next can let enameled wire and wire butt fusion be in the same place.

Compared with the prior art, the utility model has the advantages of outstanding and beneficial technical effect.

1. The wire harness welding installation that exists in the market at present, electrode need be changed when the pencil specification changes. Adopt the utility model discloses can need not adjust welding head, can directly press into squarely with the pencil. When the specifications of the wire harnesses are different, only different welding specification numbers need to be called, and preset welding parameters are stored in the specification numbers.

2. The utility model discloses utilize the hot pressing to weld the pencil together, reduced the use of soldering tin, saved the cost while also more environmental protection.

3. The utility model discloses can be less the use of terminal, the cost is reduced.

Drawings

FIG. 1 is a system diagram of an adaptive wire harness squaring welder.

Fig. 2 is an axial view of a squaring welding head.

Fig. 3 is a front view of a squaring welding head.

1-vertical support plate, 2-upper reinforcing plate, 3-upper electrode module base, 4-lower reinforcing plate, 5-front and back adjusting plate, 6-base substrate, 7-lower electrode module base, 8-insulating plate, 9-left and right adjusting plate, 10-lower electrode module cover plate, 11-upper electrode module cover plate, 12-air cylinder floating joint, 13-air cylinder fixing plate, 14-thin air cylinder, 15-upper electrode module cooling water outlet, 16-upper electrode module cooling water inlet, 17-upper tungsten electrode, 18-linear guide rail, 19-lower high temperature ceramic, 20-lower electrode module cooling water inlet, 21-lower electrode module cooling water outlet, 22-lower tungsten electrode, 23-upper high temperature ceramic, and 24-upper electrode module cable connecting plate.

Detailed Description

The invention will be further described in the following with reference to the attached drawings in a specific embodiment,

as shown in fig. 1, the adaptive wiring harness squaring welding machine comprises a medium-frequency inverter power controller, a medium-frequency transformer and a squaring welding head. Wherein the pressure side bonding head is shown in figures 2 and 3.

In the square-pressing welding machine, the voltage of the secondary side of the intermediate frequency transformer is small, the current is very large, so the transformer and the electrode module are connected by using a copper stranded wire cable coated with insulation, and the sectional area of the copper stranded wire cable is 300 mm². For the upper electrode module, the copper strand cable is connected to the upper electrode module cable connection plate 24 and the other copper strand cable is directly connected to the lower electrode module base 7.

The intermediate frequency welding power supply controller can store a plurality of groups of welding specifications and can independently store different welding parameters according to different wire harness specifications. When the wire harnesses with different specifications are welded, the corresponding welding specifications which are set before are called, and welding parameters do not need to be set again.

In the square pressing welding head, in order to take the conductivity and the mechanical property into consideration, the material of the upper electrode module base, the lower electrode module base and the cover plate is H90 brass.

As shown in FIGS. 2 and 3, the electrode module of the square welding head comprises an air cylinder 14, an air cylinder floating joint 12, a frame, a linear guide rail 18,

electrode module bases

3 and 7, electrode

module cover plates

10 and 11,

tungsten electrodes

17 and 22, high-

temperature ceramics

19 and 23 and the like.

The square pressing welding head is shown in figure 3, and the tungsten electrode and the high-temperature ceramic are perpendicular to each other and are inclined by 45 degrees to the left and the right of a vertical line respectively. The tungsten electrode is fixedly connected on the base, and the tail end of the high-temperature ceramic is provided with a compression spring which can slide up and down relative to the base.

The electrode needs to resist high temperature and adopts a pure tungsten electrode.

The lower electrode module is fixed on the left and right adjusting plate 9, and the left and right positions of the lower electrode module can be adjusted, so that the left and right deviation of the upper and lower electrode modules caused during processing and installation can be adjusted.

The left and right adjusting plates 9 are separated from the base plate 6 by insulating plates 8, and insulating gaskets are also used on bolts for fastening the left and right adjusting plates 9. The upper and lower electrode modules are thus non-conductive, which allows current to concentrate through the welding wire bundle during welding.

The upper electrode module base 3, as shown in fig. 2, is connected to the air cylinder 14 by the air cylinder floating joint 12, and the upper electrode module base 3 is also mounted on the slider of the linear guide 18, so that it is restrained that the upper electrode module can only move up and down.

The cylinder 14, the cylinder floating joint 12, the cylinder fixing plate 13, the upper reinforcing plate 2, the lower reinforcing plate 4, the upper electrode module, the guide rail 8 and the vertical support plate 1 are connected with each other to form a whole fixed on the front and rear adjusting plates. Therefore, the front and back positions of the electrode modules on the plate can be adjusted, and the front and back deviations of the upper and lower electrode modules caused by machining and installation are adjusted.

The upper (lower) electrode module base 3 (7) is drilled with a cooling water passage, and cooling water enters from the upper (lower) electrode module cooling water inlet 16 (20) and exits from the upper (lower) electrode module cooling water outlet 15 (21), so that heat accumulated in the upper electrode module during welding can be taken away. The condition that the temperature of the upper (lower) electrode module is overhigh in the continuous welding process is avoided.

Claims

1. A self-adaptive wiring harness squaring welding machine comprises an intermediate frequency inverter power supply controller, an intermediate frequency transformer and a squaring welding machine head;

a lower electrode module in the square pressing welding head is fixed on a left adjusting plate and a right adjusting plate (9), an upper electrode module is connected with a thin cylinder (14) through a cylinder floating joint (12), and the upper electrode module can move up and down under the driving of the cylinder;

the welding system is characterized in that the intermediate frequency inverter power controller can independently store a plurality of groups of welding parameters; a square space is formed between the tungsten electrode and the high-temperature ceramic, when the tungsten electrode above the cylinder is pressed down, the high-temperature ceramic can retract a little, and the middle is always square; the upper electrode is pressed down until the wire harness is compacted regardless of the specification of the wire harness, and the wire harness is also pressed into a square shape; the intermediate frequency inverter power supply controller is firstly inverted into high-voltage intermediate frequency pulse current, the high-voltage intermediate frequency pulse current is converted into low-voltage large current through a transformer, the large current comes out from one end of the secondary side of the transformer, passes through an upper tungsten electrode (17), a wire harness and a lower tungsten electrode (22), and returns to the transformer to form a loop; the resistance of the contact part of the electrode and the wire harness is higher, so that a large amount of Joule heat can be generated at the contact part and transferred to the wire harness pressed in the middle, and the wire harness are welded together under the pressure action of the cylinder; the end of the high-temperature ceramic is provided with a compression spring which can slide relative to the electrode module base.

2. The adaptive wire harness squaring welder of claim 1, wherein the upper and lower electrode modules and the intermediate frequency transformer are connected using insulated copper stranded wire cables.

3. The adaptive wire harness squaring welder of claim 1 wherein the tungsten electrode and high temperature ceramic are mounted perpendicular to each other on the electrode module and are inclined 45 ° to the left and right of vertical and are included in the opposite direction.

4. The adaptive wire harness squaring welder of claim 1, wherein the high temperature ceramic is non-conductive, current can be concentrated from the tungsten electrode through the wire harness to the tungsten electrode and directly back to the transformer, shunting is avoided, and joule heating is more concentrated.

5. The adaptive wire harness squaring welding machine of claim 1, wherein the upper and lower electrode module bases and the cover plate in the squaring welding head are made of brass or red copper.

6. The adaptive wire harness squaring welding machine according to claim 1, wherein when the enamel wire is welded to the wire, joule heat is generated to first vaporize a coating of the enamel wire, and then the generated joule heat fuses the enamel wire and the wire together.

7. The adaptive wire harness squaring welder of claim 1, wherein the upper and lower electrode materials are tungsten metal.

8. The adaptive wire harness squaring welder of claim 1, wherein the insulating material in the upper and lower electrode modules is a high temperature ceramic.

9. The adaptive wire harness squaring welding machine according to claim 1, characterized in that the lower electrode module is fixed on a left and right adjusting plate (9) and left and right deviations of the lower electrode module can be adjusted left and right.

10. The adaptive wire harness squaring welding machine according to claim 1, characterized in that the left and right adjusting plates (9) are separated from the base plate (6) by insulating plates, and insulating gaskets are used on bolts for fastening the left and right adjusting plates (9).

11. The adaptive wire harness squaring welder of claim 1 characterized in that the upper electrode module bases (3) are connected with cylinder floating joints (12) while the upper electrode module bases (3) are mounted on slides of linear guides (18) constraining the upper electrode module to move only up and down.

12. The adaptive wire harness squaring welder of claim 1 characterized in that the upper electrode module front to back deflection can be adjusted by front to back adjustment plates (5).

13. The adaptive wire harness squaring welding machine of claim 1, wherein the upper and lower electrode module bases are drilled with cooling water passages through which excess heat during welding can be removed.