CN212240274U

CN212240274U - Lead screw female fin

Info

Publication number: CN212240274U
Application number: CN202020630159.2U
Authority: CN
Inventors: 杨志雄
Original assignee: Nanjing Tengyang Machinery Co ltd
Current assignee: Nanjing Tengyang Machinery Co ltd
Priority date: 2020-04-23
Filing date: 2020-04-23
Publication date: 2020-12-29
Anticipated expiration: 2030-04-23

Abstract

The utility model relates to the technical field of machine tool machining, in particular to a screw nut radiating fin, which comprises a screw, a screw nut, a heat exchange fin and a nut seat; the screw nut is arranged on the screw in a sliding manner, and the nut seat is arranged on the screw nut through the heat exchange plate; the heat exchange fins comprise box bodies, coil pipes, side sealing plates and cooling liquid; the coil pipe is arranged in a cavity of the box body, the side sealing plate is arranged at the open position of the box body, and the cavity of the box body is filled with cooling liquid. The utility model discloses the device can reduce the female operating temperature of lead screw, improves the female operational environment of lead screw, effectively alleviates heat altered shape and causes bad phenomenon to improve the machining precision of lathe, prolong the life of the female and lead screw of lead screw, thereby promote the whole quality of lathe.

Description

Lead screw female fin

Technical Field

The utility model relates to a machine tool machining technical field, concretely relates to female fin device of lead screw.

Background

In the prior art, a numerical control machine tool mainly adopts a screw rod structure to complete relative motion in X, Y and Z axial directions. An X-axis (workbench) of a gantry machine tool is taken as an example and is shown in figure 1, an X-axis lead screw is fixed on a base, an X-axis lead screw nut is fixed on a nut seat of a workbench, a motor drives a lead screw to rotate, and the lead screw drives the workbench to reciprocate through the lead screw nut under the matching of a slide rail and a slide block.

Because the machine tool has longer working time, higher reciprocating operation frequency and higher operation speed of the workbench, and the temperature of the screw rod and the screw rod nut is increased due to the load during processing, the processing precision of the machine tool is reduced due to the influence of thermal deformation, and the service life of the screw rod and the screw rod nut is shortened.

SUMMERY OF THE UTILITY MODEL

To the technical problem in the background art, the utility model provides a female heat exchanger fin device of lead screw can be fast accurate place electronic component weld in reflow soldering machine, can reduce the female operating temperature of lead screw, improves the female operational environment of lead screw, effectively alleviates thermal deformation and causes bad phenomenon to improve the machining precision of lathe.

A lead screw nut radiating fin comprises a lead screw, a lead screw nut, a heat exchange fin and a nut seat; the screw nut is arranged on the screw in a sliding manner, and the nut seat is arranged on the screw nut through the heat exchange plate; the heat exchange fins comprise box bodies, coil pipes, side sealing plates and cooling liquid; the coil pipe is arranged in the cavity of the box body, the side sealing plate is arranged at the open position of the box body, and the cavity of the box body is cooled by liquid.

Preferably, the coil pipe comprises a pipe body, a liquid inlet end and a liquid outlet end, the coil pipe is wound in the cavity of the box body, and the liquid inlet end and the liquid outlet end are respectively communicated with the two ends of the pipe body.

Preferably, the side sealing plate is provided with a pipe inlet, a pipe outlet and a liquid adding opening; the inlet pipe mouth with the outlet pipe mouth is located the homonymy and corresponds match in the feed liquor end with go out the liquid end, the filling opening is located side seal board middle part.

Preferably, a valve block is arranged on one side of the nut seat.

Preferably, the valve block includes main inlet tube, main outlet pipe, intake antrum, goes out the water cavity, divides the water pipe and divides the water pipe, main inlet tube passes through the intake antrum communicate in divide the water pipe, main outlet pipe through go out the water cavity communicate in divide the water pipe.

Preferably, the water dividing pipe is communicated with the liquid inlet end, and the water dividing pipe is communicated with the liquid outlet end.

Preferably, the nut seat is configured on the screw nut through two heat exchange sheets in opposite positions, and foam cotton is filled between the heat exchange sheets.

Preferably, a pressure plate is fixed at the bottom of the nut seat.

The utility model provides a female fin device of lead screw, beneficial effect lies in: the utility model discloses the device can reduce the female operating temperature of lead screw, improves the female operational environment of lead screw, effectively alleviates heat altered shape and causes bad phenomenon to improve the machining precision of lathe, prolong the life of the female and lead screw of lead screw, thereby promote the whole quality of lathe.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic structural diagram of X-axis motion of a gantry machine in the background art;

FIG. 2 is a schematic structural diagram of the device of the present invention;

FIG. 3 is a schematic structural view of a heat exchange fin of the apparatus of the present invention;

FIG. 4 is a schematic structural view of a case in the device of the present invention;

FIG. 5 is a schematic view of the structure of the coil pipe in the device of the present invention;

fig. 6 is a schematic structural view of a side sealing plate in the device of the present invention;

fig. 7 is a schematic structural diagram of a valve block in the device of the present invention, (a), a front view; (b) a rear view; (c) a side view;

in the fig. 1 notation: 11. a work table; 12. a screw rod; 13. a lead screw nut; 14. a nut seat; 15. a base;

labeled in fig. 2 to 6: 21. a lead screw; 22. a lead screw nut; 23. a heat exchanger fin; 231. a box body; 232. a coil pipe; 2321. a pipe body; 2322. a liquid inlet end; 2323 discharging liquid; 233. a side sealing plate; 2331. an inlet pipe orifice; 2332. an outlet pipe orifice; 2333. a liquid filling port; 234. cooling liquid; 24. a nut seat; 25. foaming cotton; 26. pressing a plate; 27. a valve block; 271. a main water inlet pipe; 272. a main water outlet pipe; 273. a water inlet cavity; 274. a water outlet cavity; 275. a water inlet pipe; 276. and a water outlet pipe.

Detailed Description

The conception, specific structure and technical effects of the present invention will be described clearly and completely with reference to the accompanying drawings and embodiments, so as to fully understand the objects, aspects and effects of the present invention. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. It should be noted that, unless otherwise specified, when a feature is referred to as being "fixed" or "connected" to another feature, it may be directly fixed or connected to the other feature or indirectly fixed or connected to the other feature. Furthermore, the description of the upper, lower, left, right, etc. used in the present invention is only relative to the mutual positional relationship of the components of the present invention in the drawings.

The following describes preferred embodiments of the present invention in detail with reference to the accompanying drawings.

As shown in fig. 2 to 6, a heat sink for a lead screw nut includes a lead screw 21, a lead screw nut 22, a heat exchanger plate 23, and a nut seat 24. The screw nut 22 is slidably disposed on the screw 21, the nut seat 24 is disposed on the screw nut 22 through two heat exchanging plates 23 at opposite positions, and foam 25 is filled between the heat exchanging plates 23 to fill the installation gap between the heat exchanging plates 23. The heat exchanging fin 23 includes a box 231, a coil 232, a side sealing plate 233 and a cooling liquid 234, the box 231 is a semi-circular hollow structure made of aluminum, one side of the box is closed, the other side of the box is open, and the open position is used for assembling the coil 232. The coil 232 is disposed in the cavity of the box 231, the side sealing plate 233 is disposed at the opening of the box 231, and the cavity of the box 231 is filled with 80% of the cooling liquid 234. The cooling liquid 234 is in a liquid state and may be replaced by a low freezing point resistant liquid or glycerin. The bottom of the nut seat 24 is fixed with a pressure plate 26, and the heat exchange plate 23 is pressed tightly by the pressure plate 26 and cannot be separated.

The coil 232 includes a pipe body 2321, a liquid inlet end 2322 and a liquid outlet end 2323, the coil 232 is wound in the cavity of the box body 231, and the liquid inlet end 2331 and the liquid outlet end 2323 are respectively communicated with two ends of the pipe body 2321. The cooling water enters the pipe 2321 from the inlet 2331 and exchanges heat with the cooling liquid 234 in the cartridge 231, and then carries heat out from the outlet 2323.

The side sealing plate 233 is provided with a tube inlet 2331, a tube outlet 2332, and a liquid inlet 2333. The pipe inlet 2331 and the pipe outlet 2332 are positioned on the same side and are correspondingly matched with the liquid inlet 2322 and the liquid outlet 2323, so that the installation is convenient, the liquid adding port 2333 is positioned in the middle of the side sealing plate 233, cooling liquid is injected into the cavity of the box body 231 through the liquid adding port 2333, and finally the liquid adding port 2333 is welded and ground.

One side of the nut seat 24 is provided with a valve block 27 for dividing cooling water. The valve block 27 comprises a main water inlet pipe 271, a main water outlet pipe 272, a water inlet cavity 273, a water outlet cavity 274, a water dividing pipe 275 and a water dividing pipe 276, wherein the main water inlet pipe 271 is communicated with the two water dividing pipes 275 through the water inlet cavity 273, and the main water outlet pipe 272 is communicated with the two water dividing pipes 276 through the water outlet cavity 274. The two branch water inlet pipes 275 are respectively and correspondingly communicated with the liquid inlet ends 2322 of the upper and lower heat exchange fins 23, and the two branch water outlet pipes 276 are respectively and correspondingly communicated with the liquid outlet ends 2323 of the upper and lower heat exchange fins 23. The main water inlet pipe 271 is communicated with the water pump through a plastic hose, and the main water outlet pipe 272 is communicated with the water tank through a plastic hose.

The utility model discloses the theory of operation of device does:

when the screw nut 22 slides along the screw 21, a large amount of heat is generated due to friction, the cooling liquid 234 in the heat exchange fins 23 absorbs the heat, on the other hand, the water pump conveys cooling water into the main water inlet pipe 271, then the cooling water flows into the water inlet cavity 273 from the main water inlet pipe 271, then the cooling water flows into the coil pipes 232 corresponding to the two branch water pipes 275 from the water inlet cavity 273 respectively and exchanges heat with the cooling liquid 234, and then the cooling water flows out of the water outlet cavity 274 from the corresponding branch water pipes 276 and flows into the box body through the main water outlet pipe 276.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A lead screw nut radiating fin is characterized by comprising a lead screw, a lead screw nut, a heat exchange fin and a nut seat; the screw nut is arranged on the screw in a sliding manner, and the nut seat is arranged on the screw nut through the heat exchange plate; the heat exchange fins comprise box bodies, coil pipes, side sealing plates and cooling liquid; the coil pipe is arranged in a cavity of the box body, the side sealing plate is arranged at the open position of the box body, and the cavity of the box body is filled with cooling liquid.

2. The screw nut cooling fin as recited in claim 1, wherein the coil comprises a tube body, a liquid inlet end and a liquid outlet end, the coil is wound in the cavity of the box body, and the liquid inlet end and the liquid outlet end are respectively communicated with two ends of the tube body.

3. The screw nut cooling fin as claimed in claim 2, wherein the side sealing plate is provided with an inlet, an outlet and a filling opening; the inlet pipe mouth with the outlet pipe mouth is located the homonymy and corresponds match in the feed liquor end with go out the liquid end, the filling opening is located side seal board middle part.

4. The screw nut cooling fin as recited in claim 3, wherein a valve block is disposed on one side of the nut seat.

5. The screw nut cooling fin as claimed in claim 4, wherein the valve block includes a main water inlet pipe, a main water outlet pipe, a water inlet chamber, a water outlet chamber, a water dividing pipe and a water dividing pipe, the main water inlet pipe is communicated with the water dividing pipe through the water inlet chamber, and the main water outlet pipe is communicated with the water dividing pipe through the water outlet chamber.

6. The screw nut cooling fin as claimed in claim 5, wherein the water inlet pipe is communicated with the liquid inlet end, and the water outlet pipe is communicated with the liquid outlet end.

7. The screw nut cooling fin as claimed in claim 1, wherein the nut base is disposed on the screw nut via two heat exchanging fins at opposite positions, and foam is filled between the heat exchanging fins.

8. The screw nut cooling fin as claimed in claim 1, wherein a pressure plate is fixed to the bottom of the nut seat.