CN204852245U - Many thin sheet part have long rack of metal level among them - Google Patents

Abstract

The utility model provides a many thin sheet part have long rack of metal level among them, technology is complicated during for solution prior art processing rack, process time is long, the processing degree of difficulty is big, technical defect such as processing cost height, the utility model provides a long rack, especially, relate to be formed by stacking and the rack fill the clearance with the metal level of thin sheet part of taking the tooth that quenches the multi -disc, thin slice rack shape part is the foil who takes the tooth of the rack shape of quenching, multi -disc thin slice rack shape part superposes into the rack body each other, with spot welding fixed connection between each thin slice rack shape part, there is the metal level on between the thin sheet part and the surface of the rack body, reach the low cost, make the technological mesh of high physical properties rack fast.

Description

A kind of many sheet parts have the long tooth bar of metal layer therebetween

Technical field

The utility model relates to the long tooth bar that a kind of many sheet parts have metal layer therebetween, particularly relates to that a kind of toothed sheet parts quenched by multi-disc is formed by stacking and fills the tooth bar in gap with metal layer.

Background technique

Gear refers to, and wheel rim has tooth can engage the mechanical component transmitting motion and power continuously, the initial gear transmission of China was brought into use from the period of Three Kingdoms, started there is gear-driven record at B.C. 300 years abroad, therefore, gear transmission at mechanical field from ancient times with regard to extensive use.

Common gear can be divided into cross section to be circular gear, the non-circular special shape gear of tooth bar and cross section from outward appearance.

Conventional gear working method is generally divided into form copying and generating cutting, such as: gear hobbing machine gear hobbing process, milling machine Gear Milling, slotting machine Gear Shaping, cold forging machine forge the methods such as tooth processing, the processing of gear generator gear-shaping, the processing of accurate casting tooth, the processing of gear grinding machine roll flute, the processing of die casting machine casting tooth, gear shaving machine processing.

Such as: produce common straight toothed spur gear for form copyings such as gear hobbing machine gear hobbing process, milling machine Gear Milling, slotting machine Gear Shaping, the processing of gear generator gear-shaping, the processing of gear grinding machine roll flute, gear shaving machine processing, processing technology must have: → tempering that blanking → material forges (eliminate material fracture and pore) (reduce and cut difficulty) → outer garden profile and interior garden profile cut → line → calibration profiling Gear shape process → keyway processing → quenching → flank of tooth honing fine finishing → inspection → warehouse-in is carried out to each tooth.

Such as: forge the common straight toothed spur gear of tooth processing for cold forging machine, processing technology must have: (technique is loaded down with trivial details, slightly to forge Mould Machining.) → heating materials → forge processing → gear surface roughing → heat treatment → gear surface fine finishing → inspection → warehouse-in; Each mould can only produce the gear of a model.

Such as: for the common straight toothed spur gear of lost wax casting method precision casting tooth processing, processing technology must have: (technique is loaded down with trivial details, slightly for the processing of metal wax-pattern.) → wax-pattern is shaped, and (technique is loaded down with trivial details, slightly.) → sand mo(u)ld shaping → sand mo(u)ld dewaxing → metal melt → cast → the demoulding → sand removal → gear surface fine finishing → inspection → warehouse-in; Cast gear is generally not suitable for heat treatment process, and therefore, the strength of gear of production is little, generally can not heat treatment further, and each mould can only produce the gear of a model.

Such as: the common straight toothed spur gear of metallic dust die casting machine casting tooth processing is example, and processing technology must have: (technique is loaded down with trivial details, slightly for Mould Machining.) → metallic dust die casting machine casting tooth → gear surface fine finishing → inspection → warehouse-in; Cast gear is generally not suitable for heat treatment process, and therefore, the strength of gear of production is little, generally can not heat treatment further, and each mould can only produce the gear of a model.

In order to ensure physical accuracy and the mechanical strength of tooth bar, no matter adopt above arbitrary processing method, all have that actual processing technology complexity, long processing time, difficulty of processing are large, processing cost high-technology defect, these technological deficiencies are more outstanding when the large-scale long tooth bar of production.

Summary of the invention

The technical problem that the utility model solves is: in order to solve, complex process when prior art adds section chief's tooth bar, long processing time, difficulty of processing are large, processing cost high-technology defect, a kind of long tooth bar is provided, particularly relate to that a kind of toothed sheet parts quenched by multi-disc is formed by stacking and with the long tooth bar in metal layer filling gap, reach the technical purpose of low cost, the fast high physical property tooth bar of manufacture.

The technological scheme of the utility model technical solution problem is:

In order to reach technical purpose of the present utility model, a kind of many sheet parts that the utility model provides have the long tooth bar of metal layer therebetween, comprise toothed thin slice rack-shaped part, comprise long tooth bar body, it is characterized in that:

Thin slice rack-shaped part is the toothed sheet metal of the rack-shaped of the sheet of quenching;

Thin slice rack-shaped part is the fragment of long tooth bar cross section;

Thin slice rack-shaped part more than a slice is connected to form the sheet parts of long tooth bar cross section shape;

Composite wafer part superposes mutually, and last layer sheet parts and lower one deck sheet parts carry out staggered superposition, form long tooth bar moulding;

After sheet parts superposition, between each sheet parts, be mutually fixedly connected with growth tooth bar body with spot welding, the soldering point at least two of each plate sheet rack-shaped part;

There is metal layer between each sheet parts and the surface of long tooth bar body;

Metal layer is selected from following any one: lead layer, tin layers, layers of copper, aluminium lamination.

Compare with current long tooth bar, the Advantageous Effects that the utility model patent obtains is: by first being quenched by thin slice rack-shaped part, then overall immersion metallic solution after forming long tooth bar, the single individuality of part is little, be convenient to quenching technical, be convenient to produce heavy parts, compared with the overall rack quenching technique of prior art, reduce the volume of hardening furnace, especially the large-scale tooth bar that thickness is large, during prior art quenching, warm-up time is very long just can make whole tooth bar heat to the temperature required for quenching, therefore, thin slice rack-shaped part carries out the technique of quenching, shorten warm-up time, be convenient to control of product quality, reduce the difficulty of quenching technical, between sheet parts and the surface of tooth bar body is all flexible metallic material, after stressed extruding, flexible metal can be extruded from the flank of tooth or simply remove, be convenient to control product design precision, do not affect tooth face hardness and flank of tooth physical parameter, add and adopt vacuum processing technology man-hour, vacuum state can discharge the gas in metallic solution, rapid pressure and fast decompression process hocket, metallic solution produces motion in tooth bar body, accelerate air in tooth bar body to discharge, make in tooth bar body finer and close, improve tooth bar body mechanical property, the utility model patent simplified processing process, shorten process time, reduce difficulty of processing, reach low cost, the technical purpose of the high physical property tooth bar of quick manufacture, complex process when solving prior art manufacturing gear strip, long processing time, difficulty of processing is large, processing cost high-technology defect, and produce the more outstanding above-mentioned technological deficiency of large-scale long tooth bar, practicability is large.

Accompanying drawing explanation

Below in conjunction with drawings and Examples, the utility model is described in further detail.

Fig. 1: be the utility model thin slice rack-shaped part schematic diagram.

Fig. 2: be the utility model thin slice rack-shaped arrangements of components method schematic diagram.

Fig. 3: be that mould that the utility model thin slice rack-shaped part enters rack shapes carries out stacking splicing and forms tooth bar moulding schematic diagram.

Fig. 4: be the utility model long tooth bar body schematic diagram.

1. sheet parts in figure, 1-1. thin slice rack-shaped part, 2. welding position, the 3. mould of long rack shapes, 4. soldering point, 5. long tooth bar body, the long tooth bar of 5-2..

Embodiment

Below in conjunction with specific embodiment, the utility model is described further, but the protection domain required by the utility model is not limited to the scope described by specific embodiment.

Example 1: as shown in Figures 1 to 4, disclosed a kind of many sheet parts have the long tooth bar of metal layer therebetween, comprise toothed thin slice rack-shaped part 1-1, comprise long tooth bar body 5, it is characterized in that:

Thin slice rack-shaped part 1-1 is the toothed sheet metal of the rack-shaped of the sheet of quenching;

Thin slice rack-shaped part 1-1 is the fragment of long tooth bar cross section;

Thin slice rack-shaped part 1-1 more than a slice is connected to form the sheet parts 1 of long tooth bar 5-2 cross section shape;

Composite wafer part 1 superposes mutually, and last layer sheet parts 1 and lower one deck sheet parts 1 carry out staggered superposition, form long tooth bar 5-2 moulding;

Sheet parts 1 is fixedly connected with growth tooth bar body 5 with spot welding between each sheet parts 1, the soldering point 4 at least two of each plate sheet rack-shaped part 1-1 after superposing mutually;

There is metal layer between each sheet parts 1 and surface of long tooth bar body 5;

Metal layer is selected from following any one: lead layer, tin layers, layers of copper, aluminium lamination.

The process step of long tooth bar is as follows:

Step 1): sheet metal is machined into toothed thin slice rack-shaped part 1-1;

Step 2): Quenching Treatment is carried out to the thin slice rack-shaped part 1-1 after shaping;

Step 3): the sheet parts 1 thin slice rack-shaped part 1-1 more than a slice being connected to form long tooth bar 5-2 cross section shape;

Step 4): the mould 3 then composite wafer part 1 being entered rack shapes carries out stacking splicing, last layer sheet parts 1 and lower one deck sheet parts 1 carry out staggered superposition, at mould 3 bottom placing sheets part 1, form orlop sheet parts 1, then on orlop sheet parts 1, last layer sheet parts 1 is placed in dislocation, then connect between orlop sheet parts 1 and last layer sheet parts 1 with spot welding, then on above-mentioned last layer sheet parts 1, sheet parts 1 is put in dislocation again, connect between the sheet parts 1 of the superiors with the sheet parts 1 of relative lower one deck with spot welding again, cyclic process reaches tooth bar design thickness, form long tooth bar body 5,

Step 5): carry out the inspection of semifinished product to described long tooth bar body 5, qualified long tooth bar body 5 enters next step, and defective long tooth bar body 5 is checked after entering mould 3 squeezing shaping of rack-shaped again, enters next step after qualified;

Step 5): then by the surperficial prefluxing of above-mentioned long tooth bar body 5;

Step 6): the long tooth bar body 5 then surface being coated with fluxing agent immerses metallic solution, and metallic solution is: plumbous liquid, tin liquor, copper liquid, copper alloy liquid, terne metal liquid or other soft aluminium alloys;

Step 7): then long tooth bar body 5 is taken out from metallic solution, carry out process for cooling;

Step 8): then carry out Checking of finished products by above-mentioned through cooled long tooth bar 5-2, the long tooth bar 5-2 of qualified finished product puts in storage, again checks after defective long tooth bar 5-2 carries out the process of tooth bar outer contour surface, and the long tooth bar 5-2 of the finished product after qualified puts in storage.

Add man-hour above-mentioned, in vacuum box, complete the effect that long tooth bar body 5 immerses metallic solution technique better;

In vacuum box, long tooth bar body 5 immerses metallic solution technique, close vacuum pump, open suction valve fast, make air inlet fast in vacuum box, by the time when vacuum box internal pressure and normal-pressure balance, cut out suction valve reopens vacuum pump and carries out negative-pressure ward, above-mentioned rapid pressure and fast decompression process hocket once, and metallic solution produces motion in long tooth bar body 5, accelerate air in long tooth bar body 5 and discharge, make in long tooth bar body 5 finer and close, improve long tooth bar body 5 mechanical property.

Below by reference to the accompanying drawings mode of execution of the present utility model is explained in detail; but the utility model is not limited thereto; in the ken that person of ordinary skill in the field possesses; can also make a variety of changes under the prerequisite not departing from the utility model aim; person of ordinary skill in the field is from above-mentioned design; without performing creative labour, done all conversion, all drop within protection domain of the present utility model.

Claims (1)

1. sheet parts more than has a long tooth bar for metal layer therebetween, comprises toothed thin slice rack-shaped part (1-1), comprises long tooth bar body (5), it is characterized in that:

Thin slice rack-shaped part (1-1) is the toothed sheet metal of the rack-shaped of the sheet of quenching;

Thin slice rack-shaped part (1-1) is the fragment of long tooth bar cross section;

Thin slice rack-shaped part (1-1) more than a slice is connected to form the sheet parts (1) of long tooth bar (5-2) cross section shape;

Composite wafer part (1) superposes mutually, and last layer sheet parts (1) and lower one deck sheet parts (1) carry out staggered superposition, form long tooth bar (5-2) moulding;

After sheet parts (1) superposition, be mutually fixedly connected with growth tooth bar body (5) with spot welding between each sheet parts (1), the soldering point of each plate sheet rack-shaped part (1-1) (4) at least two;

There is metal layer between each sheet parts (1) and the surface of long tooth bar body (5);

Metal layer is selected from following any one: lead layer, tin layers, layers of copper, aluminium lamination.