CN214392371U - Lengthened shaft type mechanical main shaft - Google Patents

Abstract

The utility model discloses an extended spindle type mechanical main shaft, which comprises a spindle sleeve, a rotating shaft, a pull rod and a driving wheel, the shaft sleeve is arranged on a rotating shaft, a pull rod is arranged in the rotating shaft in a hollow structure in a matching way, the driving wheel is arranged at one end of the rotating shaft, the rotating shaft is provided with a cooling structure which comprises a cooling fixing sleeve with a hollow inner part, the cooling fixing sleeve is arranged on the periphery of the rotating shaft, a cooling space is formed between the rotating shaft and the cooling fixing sleeve, the cooling fixing sleeve is provided with a first through groove and a second through groove which are communicated with the cooling space, so that cooling liquid enters the cooling space from the first through groove to cool the rotating shaft, then the cooling liquid is discharged from the second through groove and circulates in the way, and by arranging a cooling structure on the rotating shaft, can effectively cool off the pivot, prevent that the pivot from taking place the deformation because of the production of heat is too big, leading to influencing the machining precision.

Description

Lengthened shaft type mechanical main shaft

Technical Field

The utility model belongs to the machining field specifically is an add shaft type mechanical main shaft that adds.

Background

The mechanical main shaft can be used in a machining center, and because the diameter of the mechanical main shaft is larger and is difficult to machine to the deep part, a research and development team develops a telescopic mechanical main shaft, the output end of the mechanical main shaft can extend out of an extension shaft with smaller diameter, so that the problem that the mechanical main shaft cannot extend into the deep part for machining is effectively solved, but the main shaft needs to be imported, is high in price and is not beneficial to production, therefore, the lengthened mechanical main shaft is designed, the diameter of the output end of the lengthened mechanical main shaft is smaller, the mechanical main shaft can extend into the deep part for machining, can achieve the same length as the telescopic mechanical main shaft after being completely extended out, and is lower in price,

however, because the length of the lengthened mechanical spindle is much longer than that of a common spindle, the heat generated by the bearing on the lengthened mechanical spindle and the cutting of the cutter is added in the process of processing a workpiece, so that the rotating shaft is slightly deformed, and the error of the processed part is large.

Disclosure of Invention

An object of the utility model is to provide an add shaft type mechanical main shaft to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a lengthened shaft type mechanical spindle, includes axle sleeve, pivot, pull rod and drive wheel, the axle sleeve is installed in the pivot, install the pull rod for the hollow structure cooperation in the pivot, the drive wheel is installed in pivot one end, be equipped with cooling structure in the pivot, cooling structure includes the fixed cover of inside hollow cooling, the fixed cover of cooling is installed in the pivot periphery, form the cooling space between pivot and the fixed cover of cooling, the fixed cover of cooling is equipped with logical groove one and logical groove two with the cooling space intercommunication, makes the coolant liquid get into the cooling space from logical groove one and cools off the countershaft, then the coolant liquid is discharged from logical groove two, so circulation.

According to a further technical scheme, an oil seal used for preventing cooling liquid from leaking is arranged between the cooling fixing sleeve and the rotating shaft.

According to the technical scheme, one side, close to the output end of the rotating shaft, of the cooling fixing sleeve is provided with a plurality of universal nozzles, the cooling fixing sleeve is provided with a plurality of through grooves III communicated with the cooling space, and the other ends of the through grooves III correspond to the universal nozzles.

According to a further technical scheme, end covers used for fixing the shaft sleeve are installed at two ends of the rotating shaft.

According to the technical scheme, an extension rod is further installed in the rotating shaft, one end of the extension rod is connected with the pull rod, and the other end of the extension rod extends towards the output end of the rotating shaft.

According to the further technical scheme, the other end of the rotating shaft is provided with a positioning block used for clamping the cutter handle, and the positioning block and the rotating shaft are of an integrated structure.

The utility model has the advantages that:

the utility model provides an add shaft type mechanical main shaft with extension through set up cooling structure in the pivot, can effectively cool off the pivot, prevents that the pivot from taking place deformation because of the production of heat is too big, leads to influencing the machining precision.

Drawings

FIG. 1: the utility model discloses a perspective view.

FIG. 2: the utility model discloses a section view.

FIG. 3: the utility model discloses a part A enlarger.

Detailed Description

The technical solution of the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings,

referring to fig. 1-3 of the drawings,

the utility model provides a shaft type mechanical spindle adds extension, includes axle sleeve 1, pivot 2, pull rod 3 and drive wheel 4, axle sleeve 1 is installed in pivot 2, install pull rod 3 for the hollow structure cooperation in the pivot 2, drive wheel 4 is installed in 2 one ends of pivot, be equipped with cooling structure 5 in the pivot 2, cooling structure 5 includes the fixed cover 51 of inside hollow cooling, the fixed cover 51 of cooling is installed in 2 peripheries of pivot, form cooling space 52 between pivot 2 and the fixed cover 51 of cooling, be equipped with logical groove one 53 and logical groove two 54 with the cooling space 52 intercommunication on the fixed cover 51 of cooling, make the coolant liquid get into cooling space 52 from leading to groove one 53 and cool off spindle 2, then the coolant liquid is discharged from leading to groove two 54, so circulate.

In the embodiment of the utility model, the water-soluble,

the lengthened shaft type mechanical spindle designed by the scheme is applied to large-scale equipment, and the lengthened mechanical spindle is much longer than a common spindle, so that the rotating shaft is slightly deformed by heat generated by jointly cutting a bearing on the lengthened mechanical spindle and a cutter in the process of processing a workpiece, and the error of a processed part is larger.

Before processing, a liquid inlet pipe is connected with a first through groove 53, a liquid outlet pipe is connected with a second through groove 54, the liquid inlet pipe and the liquid outlet pipe are respectively connected with external liquid supply equipment, then a driving wheel 4 is driven to rotate by starting a driving device, namely, a rotating shaft 2 is driven to rotate to process parts, when the parts are processed, the rotating shaft 2 generates huge heat, meanwhile, the liquid supply equipment is started, cooling liquid is output from the liquid inlet pipe and flows into a cooling space 52 through the first through groove 53, the cooling liquid in the first through groove adopts liquid with larger specific heat capacity, such as water or oil, the cooling liquid is contacted with the rotating shaft 2 in the cooling space 52, the heat on the rotating shaft 2 is absorbed to achieve the purposes of cooling, then the cooling liquid is discharged from the second through groove 54, enters the liquid outlet pipe to flow into the equipment for cooling and heat dissipation, and then is output through the liquid inlet pipe again to enter a cooling circulation of the rotating shaft 2,

the utility model discloses a cooling structure 5, simple and practical can effectively cool off pivot 2, prevents that pivot 2 from taking place deformation because of the production of heat is too big, leads to influencing the machining precision.

In a further technical scheme, an oil seal 55 for preventing cooling liquid from leaking is arranged between the cooling fixing sleeve 51 and the rotating shaft 2.

According to the further technical scheme, one side, close to the output end of the rotating shaft 2, of the cooling fixing sleeve 51 is provided with a plurality of universal nozzles 56, a plurality of through grooves three 57 communicated with the cooling space 52 are formed in the cooling fixing sleeve 51, and the other ends of the through grooves three 57 correspond to the universal nozzles 56.

Under the general condition, the confession liquid equipment exports a large amount of coolant liquid, make cooling space 52 full of fast, then flow out from the drain pipe and accomplish the cooling process, in the cooling process, have great pressure in the cooling space 52, through setting up logical groove three 57 with cooling space 52 intercommunication, make partial coolant liquid flow in logical groove three 57, then spout the coolant liquid through universal nozzle 56, because universal nozzle sets up in being close to 2 output sides of pivot, spun coolant liquid can cool off output and processing cutter, the life of extension cutter, in addition, when logical groove two 54 or drain pipe are blocked up, can reduce the pressure of cooling space 52 through logical groove three 57, prevent to damage.

According to a further technical scheme, end covers 6 used for fixing the shaft sleeve 1 are installed at two ends of the rotating shaft 2.

According to the further technical scheme, an extension bar 7 is further installed in the rotating shaft 2, one end of the extension bar 7 is connected with the pull rod 3, and the other end of the extension bar 7 extends towards the output end of the rotating shaft 2.

Because the length of extension shaft type mechanical main shaft is long relatively ordinary mechanical main shaft, so pull rod 3 that its used also than general will be long, but the length of production pull rod 3 is longer more, just difficult its straightness of guaranteeing more, if the scuffing of taking place the bending, can influence the tight fixed of clamp to the cutter, can influence the machining precision to the spare part equally, consequently the utility model discloses a two segmentation structures, through increasing extension bar 7, be connected with pull rod 3 again, can realize the same effect, and pull rod 3 and extension bar 7 separately process, have shortened the length of processing, can guarantee its straightness.

According to a further technical scheme, the other end of the rotating shaft 2 is provided with a positioning block 8 used for clamping the tool shank, and the positioning block 8 and the rotating shaft 2 are of an integrated structure.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be appropriately combined to form other embodiments as will be apparent to those skilled in the art.

Claims (6)

1. The utility model provides a shaft type mechanical spindle adds extension, includes axle sleeve (1), pivot (2), pull rod (3) and drive wheel (4), install on pivot (2) axle sleeve (1), install pull rod (3) for the hollow structure cooperation in pivot (2), install in pivot (2) one end, its characterized in that in drive wheel (4): be equipped with cooling structure (5) on pivot (2), cooling structure (5) are including the fixed cover of inside hollow cooling (51), the fixed cover of cooling (51) is installed in pivot (2) periphery, form cooling space (52) between pivot (2) and the fixed cover of cooling (51), be equipped with logical groove one (53) and logical groove two (54) with cooling space (52) intercommunication on the fixed cover of cooling (51), make the coolant liquid get into cooling space (52) from leading to groove one (53) and cool off pivot (2), then the coolant liquid is discharged from leading to groove two (54), so circulate.

2. The extended spindle machine spindle of claim 1, wherein: and an oil seal (55) for preventing cooling liquid from leaking is arranged between the cooling fixing sleeve (51) and the rotating shaft (2).

3. An extended spindle machine spindle according to claim 2 wherein: the cooling fixing sleeve (51) is provided with a plurality of universal nozzles (56) close to one side of the output end of the rotating shaft (2), the cooling fixing sleeve (51) is provided with a plurality of through grooves III (57) communicated with the cooling space (52), and the other ends of the through grooves III (57) correspond to the universal nozzles (56).

4. The extended spindle machine spindle of claim 1, wherein: and end covers (6) used for fixing the shaft sleeve (1) are installed at the two ends of the rotating shaft (2).

5. The extended spindle machine spindle of claim 1, wherein: still install extension bar (7) in pivot (2), extension bar (7) one end is connected with pull rod (3), extension bar (7) other end extends toward pivot (2) output end direction.

6. The extended spindle machine spindle of claim 1, wherein: the other end of the rotating shaft (2) is provided with a positioning block (8) used for clamping the tool shank, and the positioning block (8) and the rotating shaft (2) are of an integrated structure.

Images