CN202032497U

CN202032497U - Lamp arm

Info

Publication number: CN202032497U
Application number: CN2011200620877U
Authority: CN
Inventors: 袁仕强
Original assignee: Zhongshan Kinglong Lighting Factory Co Ltd
Current assignee: Zhongshan Kinglong Lighting Factory Co Ltd
Priority date: 2011-03-07
Filing date: 2011-03-07
Publication date: 2011-11-09
Anticipated expiration: 2021-03-07

Abstract

The utility model discloses a lamp arm, which is characterized by comprising an upper housing (1) and a lower housing (2) which are made of metal materials, wherein the upper housing (1) and the lower housing (2) are spliced to form a chamber (3) therebetween for penetrating wires; the joints between the upper housing (1) and the lower housing (2) are connected by welding to form a first welding joint (9); and the upper housing (1) and the lower housing (2) are made of red copper alloys. When the lamp arm is manufactured, electrolytic copper is directly deposited on two halves of silicon rubber moulds to form the upper housing and the lower housing without wax moulds, so that the production process is simplified; the process of recycling wax and casting the wax moulds is saved; the production efficiency is greatly improved; the labor, the cost and the production cost are reduced; the health of workers are ensured after the pollution is reduced; and the lamp arm is very environment-friendly.

Description

A kind of arm of light fixture

Technical field:

The utility model relates to a kind of arm of light fixture.

Background technology:

The structure of the arm of existing light fixture has multiple, but has open defect more:

(1) first kind is with the thin copper of electroplating surface one deck outside behind the allumen die cast, thickness is probably at several microns to tens microns, with anticorrosion, though the arm cost of this structure is low, but owing to must be provided with wire hole at the arm both ends, be provided with at the middle part of arm and be used for the pipeline of electric wire, therefore be easy to be corroded in the pipeline the inside of crossing electric wire and get rusty, the whole work-piece outside forms rough cellular in addition, and resistance to corrosion is not high, the easy breakage of electrodeposited coating is peeled off, and general 2-3 just plays spot, and the entire product aesthetic property is had a greatly reduced quality, of poor quality, the price of product is lower.

(2) second kinds is to press copper casting, and as the improvement to first kind of arm structure, its advantage is: resistance to corrosion is significantly improved, and outward appearance and quality are all better, and class is higher; But also there is distinct disadvantage: utilize hollow metal tube as core rod, the metal tube the inside forms hollow passage, at the threaded wire hole of the two ends of pipeline tapping, so that be connected with other part, go out the arm that brass is made in the die casting of the outside of metal tube then, the shape of arm can be varied, size length also differs, and considers the design of die casting runner, and the thickness of arm is all greater than 4mm, therefore, the arm that casting is come out is heavier, and cost is higher, and die casting surface flatness and poor flatness, the reflecting effect of light is poor, metal-like is poor, and hollow metallic conduit majority is that metals such as iron are pushed down part, still gets rusty easily, still can discharge the lime-ash that gets rusty and form at wire hole, influence decorative effect.In addition, adopt extrusion process, molten metal is filled die cavity under pressure, and under higher pressure crystallization and freezing, if workpiece is long, understands some molten metal and solidify obstruction earlier, cause metal liquid stream less than far-end, so its length of die casting arm can be very restricted, general length is no more than 60mm, and extrusion process also can form rough cellular in the workpiece outside, rough surface, and need drive metal pattern, cost is expensive, and the time of production is slow.

In order to solve above-mentioned technical problem, the applicant has passed through the arm of the electroforming process formation of cathode copper at present, solves all technological deficiencies that above-mentioned two kinds of technologies are made arm, and electroforming has under same volume in light weight from the copper alloy arm, cost is low, the surface is Paint Gloss smooth, and the metal sense is strong, and resistance to corrosion is higher, decorative effect is better, length can be made longlyer, meets customer need the production efficiency height.Its technical process is as follows:

(1) size, the shape according to the lamp decoration fittings that designs produces plaster mold A, as shown in Figure 1;

(2) utilize plaster mold A to produce the silica gel mould B of two halves;

(3) to the wax of the inside of silica gel mould B altogether pouring liquid, the cooling back forms wax-pattern C down;

(4) coat conductive material at wax-pattern C, then wax-pattern C is put into electrolytic solution cell and carry out the electroforming deposition, at the outside deposition formation lamp decoration fittings D of wax-pattern C.

(5) the heating lamp decorating fittings are with wax-pattern C heat fused, and liquid wax is from the lamp decoration fittings eliminating and formed the line cavity;

(6) manual recovery wax.

There is following shortcoming in the arm of this integral electroforming moulding: 1) complex procedures, and production efficiency is low; 2) casting wax core reclaims trouble, and various industrial chemicals pollute big, influence workers ' health; When 3) producing in batches, each arm is all wanted a wax-pattern (core), and production efficiency is low, and it is many to take up room during the electroforming deposition, and production efficiency is low; 4) cathode copper is to be deposited on the wax-pattern outside from the peripheral parcel of wax-pattern (core), the arm wall unevenness of deposition is even, influences mechanical performance of products and profile, and the wax-pattern outside is protruding with floral designs, but along with deposit thickness increases, the decorative pattern of the arm of deposition modeling is just more and more fuzzyyer; 5) production cost height.

Summary of the invention:

The purpose of this utility model provides a kind of arm of light fixture, and its production technology is simple, and production cost is low, produces the efficient height in batches, the production compliance with environmental protection requirements, and it is little to take up room during production, and wall thickness is even, good mechanical property, surface detail is more clear.

Arm of the present utility model adopts following technical scheme to realize:

A kind of arm of light fixture comprises upper shell and the lower house made by metal material, forms the cavity of line in the middle of upper shell and lower house are stitched together, and the joint of upper shell and lower house gets up by the volume of being welded to connect and forms first weld seam.

Above-mentioned described upper shell and lower house are the manufacturings of red copper alloy.

Above-mentioned described upper shell and lower house are the electroforming parts, and wall thickness is between 0.3mm-5mm.

The above-mentioned described first weld seam coated outside has decorative layer, and decorative layer is the red copper layer.

Above-mentioned described two ends at upper shell or lower house are provided with wire hole, and line-entering hole is communicated with cavity.

The above-mentioned described connector that is provided with internal thread hole in the wire hole position, connector are to be welded on upper shell or the lower house and to form second weld seam.

Above-mentioned described coated outside decorative layer at second weld seam.

Above-mentioned described decorative layer forms by electroforming or electroplating technology.

Above-mentioned described pattern pattern at upper shell or lower house outer surface formation decoration.

Arm of the present utility model has following advantage: 1) arm is by upper shell and lower house, upper shell and lower house are red copper electroforming parts, in the middle of being stitched together, upper shell and lower house formed the cavity of line, the joint of upper shell and lower house gets up by the volume of being welded to connect and forms first weld seam, cathode copper directly is deposited on forms upper shell and lower house on the two halves silica gel mould, need not to use wax-pattern, simplify production technology, also need not to carry out wax reclaims and the casting wax pattern operation, enhance productivity greatly, reduce the manpower expense, reduce production costs, and comparatively environmental protection reduces the pollution back and ensures that the workman is healthy; When 2) electroforming deposited, it is little that the two halves silica gel mould of corresponding upper shell and lower house takies volume, can produce in enormous quantities, and production efficiency is higher; 3) silica gel mould depression decorative pattern, during electroforming, electrolytic copper depostion is in the die cavity the inside of silica gel mould, and the decorative pattern of arm does not influence wall thickness, so the wall thickness of arm is even, good mechanical property, and decorative pattern is clear is not subjected to influence of wall thickness.

Description of drawings:

Fig. 1 is the schematic flow sheet that existing arm electroforming is made.

Fig. 2 is the schematic flow sheet that the electroforming of the utility model arm is made.

Fig. 3 is the exploded view of the utility model arm.

Fig. 4 is the stereogram after the welding of the utility model arm.

Fig. 5 is the front view of decorative layer in the electroforming after the welding of the utility model arm.

Fig. 6 is the A-A cutaway view of Fig. 5.

Fig. 7 is the B-B cutaway view of Fig. 5.

The specific embodiment:

Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.

Extremely shown in Figure 7 as Fig. 2, the electroforming deposition process of arm of the present utility model, it comprises the steps:

A kind of electroforming deposition process of making lamp decoration fittings, it comprises the steps:

(step1) size, the shape according to the lamp decoration fittings that designs produces plaster mold A;

(step2) utilize plaster mold A to produce the silica gel mould B of two halves;

(step3) the die cavity F at silica gel mould B coats conductive material, then the silica gel mould B of two halves is put into electrolytic solution cell E and carry out the electroforming deposition, deposition forms upper shell 1 and lower house 2 in the die cavity F of two silica gel mould B, formed the cavity 3 of line in the middle of upper shell 1 and lower house 2 be stitched together, the joint of upper shell 1 and lower house 2 forms lamp decoration fittings D by being welded to connect and forming first weld seam 9.

The above-mentioned step (step4) that increases in step (step3) back: wire hole 6 welding at the two ends of upper shell 1 or lower house 2 have the connector 4 of internal thread hole 41 and form second weld seam 7.

The above-mentioned step (step5) that increases in step (step4) back: lamp decoration fittings D is put into electrolytic solution cell E plate one deck decorative layer 5 to cover first weld seam 9 and second weld seam 7.

As Fig. 3, Fig. 4, Fig. 5, Fig. 6 and shown in Figure 7, electroforming deposition process of the present utility model is made the arm of light fixture, it comprises upper shell 1 and the lower house of being made by metal material 2, in the middle of being stitched together, upper shell 1 and lower house 2 formed the cavity 3 of line, the joint of upper shell 1 and lower house 2 gets up by the volume of being welded to connect and forms first weld seam 9, upper shell 1 and lower house 2 are red copper alloy electroforming parts, the wall thickness of upper shell 1 and lower house 2 is between 0.3mm-5mm, first weld seam, 9 coated outside have decorative layer 5, decorative layer 5 is red copper layers, two ends at upper shell 1 or lower house 2 are provided with wire hole 6, line-entering hole 6 is communicated with cavity 3, be provided with the connector 4 of internal thread hole 41 in wire hole 6 positions, connector 4 is to be welded on upper shell 1 or the lower house 2 and to form second weld seam 7, decorative layer 5 is wrapped in the outside of second weld seam 7, and decorative layer 5 forms by electroforming or electroplating technology, forms the pattern pattern of decorating 8 at upper shell 1 or lower house 2 outer surfaces.

The electroforming deposition process that the utility model is made lamp decoration fittings utilizes among the die cavity F of silica gel mould B of two halves and coats conductive material, then the silica gel mould B of two halves is put into electrolytic solution cell E and carry out the electroforming deposition, deposition forms upper shell 1 and lower house 2 in the die cavity F of two silica gel mould B, upper shell 1 and lower house 2 are welded to connect and form first weld seam formation lamp decoration fittings D, cathode copper directly is deposited on forms upper shell and lower house on the two halves silica gel mould, need not to use wax-pattern, simplify production technology, also need not to carry out wax reclaims and the casting wax pattern operation, enhance productivity greatly, reduce the manpower expense, reduce production costs, and comparatively environmental protection reduces the pollution back and ensures that the workman is healthy; During the electroforming deposition, it is little that the two halves silica gel mould of corresponding upper shell 1 and lower house 2 takies volume, can produce in enormous quantities, and production efficiency is higher; Silica gel mould depression decorative pattern, during electroforming, electrolytic copper depostion is in the die cavity the inside of silica gel mould, and the decorative pattern of arm does not influence wall thickness, so the wall thickness of arm is even, good mechanical property, and decorative pattern is clear is not subjected to influence of wall thickness.

Claims

1. the arm of a light fixture, it is characterized in that: it comprises upper shell (1) and the lower house (2) that metal material is made, formed the cavity (3) of line in the middle of upper shell (1) and lower house (2) are stitched together, the joint of upper shell (1) and lower house (2) is by being welded to connect and forming first weld seam (9).

2. the arm of a kind of light fixture according to claim 1, it is characterized in that: upper shell (1) and lower house (2) are the manufacturings of red copper alloy.

3. the arm of a kind of light fixture according to claim 2, it is characterized in that: upper shell (1) and lower house (2) are the electroforming parts, and wall thickness is between 0.3mm-5mm.

4. according to the arm of claim 1 or 2 or 3 described a kind of light fixtures, it is characterized in that: first weld seam (9) coated outside has decorative layer (5).

5. the arm of a kind of light fixture according to claim 4, it is characterized in that: decorative layer (5) is the red copper layer.

6. according to the arm of claim 1 or 2 or 3 described a kind of light fixtures, it is characterized in that: the two ends at upper shell (1) or lower house (2) are provided with wire hole (6), and line-entering hole (6) is communicated with cavity (3).

7. the arm of a kind of light fixture according to claim 6, it is characterized in that: be provided with the connector (4) of internal thread hole (41) in wire hole (6) position, connector (4) is to be welded on upper shell (1) or lower house (2) to go up and form second weld seam (7).

8. the arm of a kind of light fixture according to claim 7 is characterized in that: at the coated outside decorative layer (5) of second weld seam (7).

9. the arm of a kind of light fixture according to claim 8 is characterized in that: decorative layer (5) forms by electroforming or electroplating technology.

10. the arm of a kind of light fixture according to claim 9 is characterized in that: form the pattern pattern of decorating (8) at upper shell (1) or lower house (2) outer surface.