CN208483214U - A kind of the iron core copper-clad mold and worm gear of worm gear - Google Patents

Abstract

The utility model provides the iron core copper-clad mold and worm gear of a kind of worm gear, belongs to worm gear mold and worm gear technical field.It solves the problems, such as that the worm-drive precision of existing manufacture and mechanical property be not high.A kind of iron core copper-clad mold of worm gear, including upper die and lower die, upper die and lower die mold to form note copper chamber, the surplus chamber of annular is formed between the outer wall of upper mold and the inner wall of lower die, surplus chamber is located at the top of note copper chamber and surplus chamber is connected to note copper chamber, the casting channel of the copper for injecting molten is provided between upper die and lower die, the bottom for being poured channel is connected to surplus top of chamber.The utility model can be improved the transmission accuracy and mechanical property of the worm gear of manufacture.

Description

A kind of the iron core copper-clad mold and worm gear of worm gear

Technical field

The utility model belongs to worm gear mold and worm gear technical field, is related to iron core copper-clad mold and the snail of a kind of worm gear Wheel.

Background technique

Worm gear is to be used to transmit the movement between two alternating axis and the device of power with worm mechanism cooperation.Worm gear is in industry Application in machine equipments it is very universal, therefore the importance of worm gear also just it is self-evident.

In the existing manufacturing to worm gear, the iron at middle part can be first formed using cast iron or cast aluminium iron material casting and forming Core, and wrap the turntable outer peripheral surface of iron core in the turntable outer peripheral surface of iron core note copper to form a complete worm gear.It is logical It crosses and wraps up copper outside iron core, can be improved the antifriction quality of worm gear, so that worm gear is not easy to wear, improve the worm gear service life.

In the existing manufacture mold for carrying out copper-clad to iron core, frequently with flowering structure: under one upper mold of setting and one Mould, in molding, iron core is between upper die and lower die, and iron core need to infuse copper position and be located at upper die and lower die and mold the note to be formed Copper is intracavitary, the side of upper mold or lower die be provided with the injection hole that is connected to of note copper chamber, by injection hole by the copper of molten Infusing makes iron core copper-clad on iron core.

By existing mold to iron core copper-clad, stomata and loose can be generated at the upper surface of layers of copper, to complete note copper Worm gear afterwards, the upper layer of layers of copper will appear cast structure defect, and be difficult to eliminate, and lead to the mechanical property and transmission of worm gear Precision substantially reduces, influence using.

Summary of the invention

There is the above problem in the utility model, propose iron core copper-clad mold and the snail of a kind of worm gear in view of the prior art Wheel, technical problem to be solved in the utility model is the mechanical property and transmission accuracy for the worm gear how to manufacture.

The utility model is realized by following technical proposal: a kind of iron core copper-clad mold of worm gear, including upper mold is under Mould, the upper die and lower die mold to form note copper chamber, which is characterized in that are formed between the outer wall of the upper mold and the inner wall of lower die Annular surplus chamber, the surplus chamber be located at note copper chamber top and surplus chamber with infuse copper chamber be connected to, the upper die and lower die it Between be provided with the casting channel of copper for injecting molten, the bottom in the casting channel is connected to surplus top of chamber.

The iron core copper-clad mold of this worm gear is by being arranged surplus chamber in the top of note copper chamber, so that being poured when copper copper can be from remaining Amount chamber enters note copper chamber, and in casting process, upper one layer of copper can be compacted next layer of copper, and will note copper chamber note It is intracavitary that Man Houtong can be raised to surplus, and since surplus chamber is higher than note copper chamber, when the worm gear cooling meat of manufacture, surplus chamber has enough Copper carries out complementary contraction to the intracavitary copper of note copper, therefore infuses the intracavitary copper of copper and will not generate stomata and loose, therefore in above-mentioned mould On the basis of having the blank of worm gear produced, the surplus layer of the copper formed in surplus cavity segment is cut off, leaves the note intracavitary formation of copper Layers of copper, it will be able to obtain the layers of copper of dense structure, improve the mechanical property and transmission accuracy of worm gear.And the iron core of this worm gear Copper-clad mold is metal type dies, has thermal conductivity and thermal capacity big, cooling velocity is fast, the advantage of cast structure densification, can Obtain the casting of higher dimensional precision and lower surface roughness value.

In the iron core copper-clad mold of above-mentioned worm gear, the bottom of the surplus chamber is an annular opening, and it is equal to be open It is connected to note copper chamber.Enable the copper of molten uniform by above-mentioned setting and the gentle note copper that enters is intracavitary, avoids producing Anger bubble.

In the iron core copper-clad mold of above-mentioned worm gear, the top of the surplus chamber is an annular opening, and it is equal to be open It is connected to casting channel.Enable the copper of molten even into, raising note copper effect intracavitary to surplus by above-mentioned setting.

In the iron core copper-clad mold of above-mentioned worm gear, the lower die has the lower mode cavity of upper end opening, the lower mode cavity From top to bottom successively include conical section one, conical section two, surplus section and note copper section, the upper mold penetrates in lower mode cavity, it is described on Above-mentioned note copper chamber is formed between the outer wall of mould and the inner wall for infusing copper section, is formed between the outer wall of the upper mold and the inner wall of surplus section It is logical to form above-mentioned casting for above-mentioned surplus chamber between the outer wall and one inner wall of conical section and the inner wall of conical section two of the upper mold Road, the taper of the conical section one are less than the taper of conical section two.The copper injected by above-mentioned setting is first flowed into from conical section one Conical section two is flowed to again, since the taper of conical section one is less than the taper of conical section two so as to certain to the generation of the copper of injection Buffering effect avoid generate bubble, the copper of injection successively by casting channel, surplus chamber reach note copper it is intracavitary, will note copper chamber note Expire and generate surplus to be located at surplus intracavitary, there is enough copper to add to note copper when thus cooling intracavitary.

In the iron core copper-clad mold of above-mentioned worm gear, the lower die has the lower mode cavity of upper end opening, and lower mode cavity is from upper It down successively include that conical section three, surplus section and note copper section, the upper mold penetrate in lower mode cavity, the outer wall and note copper of the upper mold Above-mentioned note copper chamber is formed between the inner wall of section, forms above-mentioned surplus chamber, institute between the outer wall of the upper mold and the inner wall of surplus section It states and forms above-mentioned casting channel between three inner wall of outer wall and conical section of upper mold.The copper injected by above-mentioned setting is successively by pouring Infuse channel, that surplus chamber reaches note copper is intracavitary, note copper chamber is filled and generates surplus intracavitary, the note copper chamber in injection process that is located at surplus Positioned at bottommost.And conical section three, which is arranged, so that copper is gently fallen, and the copper of injection is avoided to splash.

A kind of worm gear, including iron core and the layers of copper for being wrapped in outer diameter, which is characterized in that the layers of copper is using above-mentioned Die casting, and cut and to be formed.

By above-mentioned mold to iron core carry out package coppersmith make, form blank of worm gear after fabrication, by blank of worm gear by The surplus layer that copper in surplus cavity segment is formed is left the layers of copper of the note intracavitary formation of copper to excision, due to using above-mentioned mold from And stomata and loose will not be generated by infuse the intracavitary layers of copper of copper, that is, obtain the layers of copper of dense structure, therefore this worm gear energy Enough there is good mechanical property and transmission accuracy.

Compared with prior art, the utility model has the advantage that

The utility model is by the way that in the top setting surplus chamber for infusing copper chamber, the worm gear cooling meat of manufacture, surplus chamber has Enough copper carries out complementary contraction to the intracavitary copper of note copper, therefore infuses the intracavitary copper of copper and will not generate stomata and loose, will be remaining The surplus layer excision for measuring the copper that cavity segment is formed, leaves the layers of copper of the note intracavitary formation of copper, it will be able to the layers of copper of dense structure is obtained, Improve the mechanical property and transmission accuracy of worm gear.And the iron core copper-clad mold of this worm gear is metal type dies, has thermal conductivity Rate and thermal capacity are big, and cooling velocity is fast, and the advantage of cast structure densification can obtain higher dimensional precision and lower rough surface The casting of angle value.

Detailed description of the invention

Fig. 1 is the schematic cross-sectional view of the iron core copper-clad mold of worm gear in the utility model embodiment one.

Fig. 2 is the overlooking structure diagram of the blank of the utility model worm gear.

Fig. 3 is the schematic perspective view of the blank of the utility model worm gear.

Fig. 4 is the positive structure diagram of the utility model worm gear.

Fig. 5 is the overlooking structure diagram of the utility model worm gear.

In figure, 1, upper mold；2, lower die；2a, lower mode cavity；2a1, conical section one；2a2, conical section two；2a3, surplus section； 2a4, note copper section；3, copper chamber is infused；4, surplus chamber；5, it is poured channel；6, iron core；7, layers of copper；8, surplus layer.

Specific embodiment

It is specific embodiment of the utility model and in conjunction with attached drawing below, the technical solution of the utility model is made further Description, but the utility model is not limited to these examples.

Embodiment one:

As shown in Figure 1, a kind of iron core copper-clad mold of worm gear, including upper mold 1 and lower die 2.Upper mold 1 and lower die 2 mold shape At note copper chamber 3.The surplus chamber 4 of annular is formed between the outer wall of upper mold 1 and the inner wall of lower die 2.Surplus chamber 4 is located at note copper chamber 3 Top and surplus chamber 4 are connected to note copper chamber 3, and the casting channel of the copper for injecting molten is provided between upper mold 1 and lower die 2 5, it is poured at the top of the bottom and surplus chamber 4 in channel 5 and is connected to.

Lower die 2 has the lower mode cavity 2a of upper end opening.Lower mode cavity 2a successively includes one 2a1 of conical section, taper from top to bottom Two 2a2 of section, surplus section 2a3 and note copper section 2a4.Upper mold 1 penetrates in lower mode cavity 2a, the outer wall of upper mold 1 and the inner wall of note copper section 2a4 Between form above-mentioned note copper chamber 3, form above-mentioned surplus chamber 4 between the outer wall of upper mold 1 and the inner wall of surplus section 2a3, upper mold 1 it is outer Above-mentioned casting channel 5 is formed between wall and one 2a1 inner wall of conical section and the inner wall of two 2a2 of conical section.The cone of one 2a1 of conical section Degree is less than the taper of two 2a2 of conical section

The bottom of surplus chamber 4 is an annular opening, and is open and is connected to note copper chamber 3.The top of surplus chamber 4 is one Annular opening, and be open and be connected to casting channel 5.

Upper mold 1 penetrates in lower mode cavity 2a when molding, forms casting channel 5, surplus chamber 4 and note copper chamber 3, and need to wrap up For the iron core 6 of layers of copper 7 between upper mold 1 and lower die 2, iron core 6 need to infuse the note that copper position is located at upper mold 1 and the molding of lower die 2 is formed In copper chamber 3.The copper of molten is poured from casting channel 5, the copper of injection first flows to conical section two from one 2a1 of conical section inflow again 2a2, since the taper of one 2a1 of conical section is certain slow so as to generate to the copper of injection less than the taper of two 2a2 of conical section It rushes effect to avoid generating bubble, the copper of injection successively reaches in note copper chamber 3 by casting channel 5, surplus chamber 4.In casting process In, upper one layer of copper can be compacted next layer of copper, and note copper chamber 3, which is filled rear copper, can be raised in surplus chamber 4, due to surplus Chamber 4 is higher than note copper chamber 3, and when the worm gear cooling meat of manufacture, surplus chamber 4 has enough copper to supplement the copper in note copper chamber 3 It shrinks, therefore infuse the copper in copper chamber 3 to generate stomata and loose, therefore on the blank of worm gear basis that above-mentioned mold is produced On, the surplus layer 8 of the copper formed in 4 part of surplus chamber is cut off, leaves the layers of copper 7 formed in note copper chamber 3, it will be able to obtain group Fine and close layers of copper 7 is knitted, to improve the mechanical property and transmission accuracy of worm gear.

Embodiment two:

Embodiment two and the structure and principle of embodiment one are essentially identical, the difference is that: lower die 2 is opened with upper end The lower mode cavity 2a of mouth, lower mode cavity 2a successively include that conical section three, surplus section 2a3 and note copper section 2a4, upper mold 1 penetrate from top to bottom In lower mode cavity 2a, above-mentioned note copper chamber 3, the outer wall and surplus of upper mold 1 are formed between the outer wall of upper mold 1 and the inner wall for infusing copper section 2a4 Above-mentioned surplus chamber 4 is formed between the inner wall of section 2a3, forms above-mentioned casting channel between three inner wall of outer wall and conical section of upper mold 1 5.The copper injected by above-mentioned setting successively reaches in note copper chamber 3 by casting channel 5, surplus chamber 4, and note copper chamber 3 is filled simultaneously It generates surplus to be located in surplus chamber 4, copper chamber 3 is infused in injection process and is located at bottommost.And conical section three, which is arranged, can make copper flat It is slow to fall, avoid the copper of injection from splashing.

Embodiment three:

As shown in Figures 2 to 5, a kind of worm gear, including iron core 6 and the layers of copper 7 for being wrapped in 6 periphery of iron core, layers of copper 7 is using upper The die casting stated simultaneously cuts to be formed.Package coppersmith is carried out to iron core 6 by above-mentioned mold to make, and forms worm gear hair after fabrication Base is left the layers of copper formed in note copper chamber 3 by the surplus layer 8 formed in blank of worm gear by the copper in 4 part of surplus chamber to excision 7, since using above-mentioned mold, so that the layers of copper 7 in note copper chamber 3 will not generate stomata and loose, this worm gear can have There are good transmission accuracy and mechanical property, is easy to use.

The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute Belonging to those skilled in the art can make various modifications or additions to the described embodiments or using similar Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.

Although upper mold 1, lower die 2, lower mode cavity 2a, one 2a1 of conical section, two 2a2 of conical section, surplus is used more herein The terms such as section 2a3, note copper section 2a4, note copper chamber 3, surplus chamber 4, casting channel 5, iron core 6, layers of copper 7, surplus layer 8, but do not arrange A possibility that except other terms are used.The use of these items is only for be more convenient to describe and explain the sheet of the utility model Matter；It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.

Claims (6)

1. a kind of iron core copper-clad mold of worm gear, including upper mold (1) and lower die (2), the upper mold (1) and lower die (2) mold shape At note copper chamber (3), which is characterized in that form the surplus chamber of annular between the outer wall of the upper mold (1) and the inner wall of lower die (2) (4), the surplus chamber (4) be located at note copper chamber (3) top and surplus chamber (4) with infuse copper chamber (3) be connected to, the upper mold (1) and The casting channel (5) of the copper for injecting molten, the bottom of casting channel (5) and surplus are provided between lower die (2) Connection at the top of chamber (4).

2. the iron core copper-clad mold of worm gear according to claim 1, which is characterized in that the bottom of the surplus chamber (4) is One annular opening, and be open and be connected to note copper chamber (3).

3. the iron core copper-clad mold of worm gear according to claim 2, which is characterized in that the top of the surplus chamber (4) is One annular opening, and be open and be connected to casting channel (5).

4. the iron core copper-clad mold of worm gear according to claim 1 or 2 or 3, which is characterized in that the lower die (2) has The lower mode cavity (2a) of upper end opening, the lower mode cavity (2a) successively include conical section one (2a1), conical section two from top to bottom (2a2), surplus section (2a3) and note copper section (2a4), the upper mold (1) penetrate in lower mode cavity (2a), the outer wall of the upper mold (1) Above-mentioned note copper chamber (3), the outer wall of the upper mold (1) and the inner wall of surplus section (2a3) are formed between the inner wall of note copper section (2a4) Between form above-mentioned surplus chamber (4), the outer wall and (2a1) inner wall of conical section one of the upper mold (1) and conical section two (2a2) Above-mentioned casting channel (5) is formed between inner wall, the taper of the conical section one (2a1) is less than the taper of conical section two (2a2).

5. the iron core copper-clad mold of worm gear according to claim 1 or 2 or 3, which is characterized in that the lower die (2) has The lower mode cavity (2a) of upper end opening, lower mode cavity (2a) successively include conical section three, surplus section (2a3) and note copper section from top to bottom (2a4), the upper mold (1) penetrate in lower mode cavity (2a), shape between the outer wall of the upper mold (1) and the inner wall for infusing copper section (2a4) At above-mentioned note copper chamber (3), above-mentioned surplus chamber (4), institute are formed between the outer wall of the upper mold (1) and the inner wall of surplus section (2a3) It states and forms above-mentioned casting channel (5) between three inner wall of outer wall and conical section of upper mold (1).

6. a kind of worm gear, including iron core (6) and it is wrapped in the layers of copper (7) of iron core (6) periphery, which is characterized in that the layers of copper (7) Using the die casting of any one of claim 1 to 5, and cuts and to be formed.