CN102363249A

CN102363249A - Metal workpiece

Info

Publication number: CN102363249A
Application number: CN201110174392XA
Authority: CN
Inventors: 张志忠
Original assignee: Huzhou Iron Force Metal Products Co Ltd
Current assignee: Huzhou Iron Force Metal Products Co Ltd
Priority date: 2011-06-27
Filing date: 2011-06-27
Publication date: 2012-02-29

Abstract

The invention discloses a metal workpiece, comprising two workpiece faces and a plurality of projections which are at least disposed on one workpiece face in a projecting manner. During spot welding, the metal workpiece reduces energy consumption of spot welding, prevents easy deformation of the appearance, and enables smooth progress of spot welding of multilayered stack.

Description

Metal works

Technical field

The present invention especially applies to the metal works of spot welding about a kind of metal works.

Background technology

Existing metal works is as shown in Figure 1, comprises a metal works 9 and two surface of the works 91.This is counted in the process that metal works 9 mutually combines; Under the mode of not adding other scolder; The general action of using spot welding to accomplish welding, the technology of this spot welding can welding repeatedly force together this count metal works 9, make this count metal works 9 and meet application miscellaneous and design.

For this metal works 9; In order to keep the flatness and the intensity of repeatedly pressing continuously, two surface of the works more than 91 of this metal works 9 are flush face, yet; Two surface of the works 91 of this metal works 9 are too concordant may to be caused producing some problems in the process of spot welding; Before enumerating these problems, below introduce the principle of spot welding earlier, be beneficial to understand the reason that these problems take place.

Existing mash welder structure comprises two electrode tips, and what see through that this two electrode tip will change pressures continuously counts metal works clamping about in the of 9, and in the transmission of this two electrode tips generation, one big electric current; And should big electric current pass this and count metal works 9, because metal is during with Metal Contact, the surface can the generation contact resistance; Flow through this when counting the contact resistance of 9 of metal works when this big electric current, and the higher position of current density can generate heat and then melt, and forms a molten bath; After this two electrode tip stops transmission of electricity; The metal at this fusing position can cool off and condense in together, sees through the effect of the hot melt condensation of 9 of number metal works, makes the 9 mutual weldings of total metal works and combines.

The surface of the work 91 of this metal works 9 is because outward appearance is concordant, and under the situation of mutual storehouse, it is excessive to cause this to count 91 contacts of surface of the work area; Make the sectional area of contact resistance also promote, under identical current condition, the sectional area of this contact resistance is big more thereupon; Current density is just more little, and current density is more little, and this metal works 9 just is not easy the heating fusing more; Cause in the process of electric welding, must applying more powerful electric current.

In addition, this metal works 9 is in the process of spot welding, except the conveying that relies on big electric current makes these metal works 9 fusings; This mash welder also must be exerted pressure to this metal works 9 simultaneously, lets this count the welding that metal works 9 can be more sturdy, increases the firm of these metal works 9 weldings; To big and concordant contact-making surface; In order to prevent number metal works 9 that the uneven situation of welding is arranged, this mash welder must apply bigger pressure, however excessive pressurization; Possibly cause the surface of the work 91 of this metal works 9 to produce depression, or even the shortcoming that warpage etc. is destroyed structure occur.

Except above-mentioned binomial shortcoming; This metal works 9 is when facing the situation of multi-disc storehouse welding; Excessive and concordant surface of the work 91; It is uneven to cause this to count metal works 9 welding degree each other, and making after the welding this count metal works 9 has and come off or the doubt of undercapacity the difficulty of increase multi-disc storehouse spot welding.

Summary of the invention

In order to solve above-mentioned technical problem, the purpose of this invention is to provide a kind of metal works, when this metal works itself carries out spot welding, can reduce the energy consumption of spot welding.

The present invention's secondary objective system provides a kind of metal works, when this metal works itself carries out spot welding, is difficult for having the distortion of outward appearance.

The present invention's the system of a purpose again provides a kind of metal works, when this metal works itself carries out spot welding, can make the spot welding of multilayer storehouse more smooth.

In order to reach above-mentioned purpose, the technical scheme below the present invention has adopted:

A kind of metal works comprises: two surface of the works; And some protuberances, be based in the one of which surface of the work at least.

As preferably, this protuberance and metal works are one-body molded.

As preferably, the edge of this surface of the work is provided with the location division.

As preferably, this two surface of the work is equipped with at least one protuberance respectively.

The present invention when this metal works itself carries out spot welding, can reduce the energy consumption of spot welding owing to adopted above technical scheme, is difficult for having the distortion of outward appearance, can make the spot welding of multilayer storehouse more smooth.

Description of drawings

Fig. 1 is existing metal works structure chart.

Fig. 2 is the present invention's metal works figure.

Fig. 3 is that sketch map is used in the present invention's metal works spot welding.

Part description among the figure:

1 metal works; 1a first metal works; 1b second metal works 11 surface of the works; The 11a first surface; The 11b second surface; 12 protuberances; 13 depressed parts; 14 fixing holes; 15 location divisions;

2 mash welders; 21 top electrodes; 22 bottom electrodes; 23 fixed bars;

9 metal works; 91 surface of the works.

The specific embodiment

Do a detailed explanation below in conjunction with the accompanying drawing specific embodiments of the invention.

Embodiment 1:

As shown in Figure 2; It is the preferred embodiment of metal works of the present invention; This metal works 1 is to process for the various metal materials that weld; This metal works 1 cording has two surface of the works 11 and number protuberance 12, and this surface of the work 11 can be a first surface 11a and a second surface 11b, and this counts protuberance 12 is to be positioned at one of which surface of the work 11 at least.

This first surface 11a and second surface 11b be preferable to can be concordant or the little plane of curvature, when being beneficial to use the continuous storehouse spot welding of this metal works 1, and these adjacent workpieces surface 11 driving fits more each other.

This is counted on the surface of the work of one of which at least 11 that protuberance 12 is based in this metal works 1 (first surface 11a or second surface 11b); Do not limit at this in this size and position of counting protuberance 12; Preferable can appearing like the little protuberance with a dimpling in the present embodiment, and all be provided with several protuberances 12 at this first surface 11a and second surface 11b, during in order to the spot welding operation; This first surface 11a and second surface 11b all have several protuberances 12, can contact with other adjacent workpiece.The prominent mode of establishing of this protuberance 12 can be setting or one-body molded with this metal works 1 in addition; In present embodiment, lie in some pressurization of this first surface 11a, make second surface 11b produce the protuberance 12 of a dimpling; And in this metal works surface 11a produces a depressed part 13; Only whether the existence of this depressed part 13, looks the method to set up of this protuberance 12 and decide, and do not limit at this.

This metal works 1 can be provided with several fixing holes 14 and a location division 15 in addition; This counts fixing hole 14 is that fixed bar with mash welder cooperatively interacts; This metal works 1 can be fixed when spot welding more accurately; This location division 15 is that edge and contiguous this of being located at this surface of the work 11 are counted protuberance 12 places, in order to point out the orientation of this protuberance 12.Only whether this counts the aspect of fixing hole 14 and this location division 15 and is provided with, and can freely dispose according to the demand of this metal works 1, does not limit at this.

As shown in Figure 3, it is the present invention's the use-case that makes, and originally makes in the use-case, is that the spot welding that the metal works 1 with 2 pairs five continuous settings of a mash welder carries out vertical direction is explained.This metal works 1 can be two first metal works 1a and three second metal works 1b, and wherein, this first metal works 1a is provided with several protuberances 12, and this second metal works 1b has flush face.Mash welder 2 comprises a top electrode 21, bottom electrode 22 and two fixed bars 23.

The configuration mode of this first metal works 1a and the second metal works 1b can be as shown in Figure 3; Two the first metal works 1a that will be provided with several protuberances 12 are configured in respectively between three the second metal works 1b; And when this second metal works 1b all disposes one first metal works 1a up and down; The configuration mode of this first metal works 1a, preferable shown in the 3rd figure, the protuberance 12 of two first metal works 1a respectively is connected to this second adjacent metal works 1b; And the protuberance 12 of these two first metal works 1a; Preferablely be positioned at same projected position, and see through this fixed bar 23 the several first metal works 1a and the second metal works 1b are fixed, carry out the operation of spot welding.

When this mash welder 2 carries out spot welding; One big electric current is by this top electrode 21 flow through this first metal works 1a and the second metal works 1b; Flow into bottom electrode 22 again, this big electric current can be in contact with one another owing to only rely on this to count protuberance 12 between this first metal works 1a and the second metal works 1b via this first metal works 1a and second metal works 1b contact point transmission to each other; So the sectional area of contact resistance is less relatively; It is big that current density just becomes relatively, makes the protuberance 12 of this first metal works 1a more be prone to the fusing that heats up, and need not use bigger electric current.When this second metal works 1b all disposes one first metal works 1a up and down; Because the protuberance 12 of these two first metal works 1a respectively is connected to this second adjacent metal works 1b; And the protuberance 12 of these two first metal works 1a is positioned at same projected position, and big electric current can be flow through via the upright projection section of this two protuberance 12 with this second metal works 1b, makes this place more be prone to fusing; And make these two the first metal works 1a and the second metal works 1b that preferable as-welded can be arranged; This moment, 2 of this mash welders need be exerted pressure slightly, just can accomplish the welding at this place, and need not use of a specified duration the exerting pressure of serious offense.Because the first metal works 1a and the second metal works 1b are arranged in a crossed manner, so each joint face all exists the protuberance 12 can heat fusing, when guaranteeing the multilayer connection, each joint face can both have the effect of welding, keeps the reliability of multilayer connection.

The present invention's metal works owing to have the design of protuberance, so, can reduce the sectional area of contact resistance, under the same current condition, can add high current density, makes metal works more be prone to fusing, and the present invention has the effect of energy saving.

The present invention's metal works because the position of protuberance can cooperatively interact, makes the welding effect of contiguous protuberance better, and the present invention's metal works need not apply bigger pressure and cause the deformation of workpiece outward appearance, and the present invention has the effect of the workpiece of keeping outward appearance.

The present invention's metal works, because each joint face all has the protuberance design, in the time of can guaranteeing that multilayer workpiece connects, each layer all has weld, the present invention has the effect that reaches the multilayer welding easily.

Though the present invention has utilized above-mentioned preferred embodiment to disclose; Right its is not in order to limit the present invention; Those skilled in the art are within spirit that does not break away from the present invention and scope; Relatively the foregoing description carries out various changes and revises the technological category that still belongs to the present invention and protected, so the present invention's protection domain ought be looked the claim person of defining and is as the criterion.

Claims

1. a metal works is characterized in that, comprises:

Two surface of the works; And

Some protuberances are based in the one of which surface of the work at least.

2. a kind of metal works according to claim 1 is characterized in that this protuberance and metal works are one-body molded.

3. a kind of metal works according to claim 1 is characterized in that the edge of this surface of the work is provided with the location division.

4. a kind of metal works according to claim 1 is characterized in that, this two surface of the work is equipped with at least one protuberance respectively.