CN209830291U - Electric spindle push rod telescopic mechanism in numerical control machining - Google Patents

Abstract

The utility model provides a electrocardio main shaft push rod telescopic machanism in numerical control processing, electricity main shaft axle center has inner chamber and electricity main shaft side end face and is connected with the cylinder body, the inside push rod that has of cylinder body, intracavity and tip are connected with the push rod including the connecting rod cross-under of electricity main shaft, the inner chamber includes path section inner chamber and big footpath section inner chamber, be equipped with the dish spring that a plurality of series connection that the overcoat was on the connecting rod outer peripheral face formed between terminal surface in the big footpath section inner chamber and the push rod, be equipped with at least one between the dish spring that a plurality of series connection formed with the dish spring segmentation, the liner overcoat is in the connecting rod outer peripheral face, and the liner external diameter. The utility model has the advantages of reasonable design, adopt the dish spring to replace original ordinary spring, can effectively improve telescopic machanism's mechanical strength, effectively guarantee the buffer function that resets, and life is longer, effectively prolongs the maintenance interval, guarantees machining center's machining efficiency.

Description

Electric spindle push rod telescopic mechanism in numerical control machining

Technical Field

The utility model relates to a digit control machine tool manufacturing technical field especially relates to a electrocardio main shaft push rod telescopic machanism in numerical control processing.

Background

In designing and manufacturing a machine tool, an electric spindle is an important component, and plays an important role in the overall performance of the machine tool. The axis of the electric spindle is provided with an inner cavity, one end face of one side of the electric spindle is connected with a cylinder body, a push rod is arranged in the cylinder body, a connecting rod of the electric spindle penetrates through the inner cavity, and the end part of the connecting rod is connected with the push rod. In the telescopic motion process of the connecting rod inside the electric spindle, when the push rod drives the connecting rod to perform telescopic motion, the reset and buffer effects of the push rod are generally realized through the spring surrounding the periphery of the connecting rod, one end of the spring is connected with the inner cavity, the other end of the spring is connected with the push rod, but the common spring is low in mechanical strength and short in service life, the maintenance interval of the electric spindle in numerical control machining is frequent, and the machining efficiency is influenced.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to overcome the deficiencies of the prior art, the utility model provides a long service life, the cushioning effect that resets are good, and machining efficiency's numerical control machining center electricity main shaft push rod telescopic machanism is guaranteed to effective extension maintenance interval.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a central spindle push rod telescopic machanism in numerical control processing, electricity main shaft axle center have inner chamber and electricity main shaft side end face and are connected with the cylinder body, the inside push rod that has of cylinder body, including intracavity and tip are connected with the push rod that the connecting rod cross-under of electricity main shaft, the inner chamber includes path section inner chamber and big diameter section inner chamber, and the terminal surface meets with path section inner chamber in the big diameter section inner chamber, outer terminal surface meets with the cylinder body, be equipped with the dish spring that a plurality of series connection that overcoat on the connecting rod outer peripheral face formed between big diameter section inner chamber terminal surface and the push rod, be equipped with at least one between the dish spring that a plurality of series connection formed, the pad overcoat is in the connecting rod outer peripheral face, and the pad external diameter is greater than the biggest external diameter of arbitrary dish spring.

Preferably, two gaskets are sleeved on the outer peripheral surface of the connecting rod, and the two gaskets divide a plurality of serially connected disc springs into three sections in series. The three-section disc springs connected in series can transmit force in a sectional manner, and the reset buffer effect is improved.

In the above scheme design, the disc spring is adopted as the elastic element, when the push rod moves forwards, the disc spring extrudes layer by layer, the buffer effect of the connecting rod in the extending process is realized, when the push rod retracts backwards, the disc spring rebounds, and the buffer and reset effects of the connecting rod in the retracting process are realized. In the process, compared with a common spring, the disc spring is higher in mechanical strength, can be independently replaced when damaged, does not need to be wholly replaced, and is long in service life and low in maintenance cost.

The beneficial effects of the utility model are that, the utility model provides a electrocardio main shaft push rod telescopic machanism in numerical control processing, structural design is reasonable, adopts the dish spring to replace original ordinary spring, can effectively improve telescopic machanism's mechanical strength, effectively guarantees the buffer function that resets, and life is longer, effectively prolongs the maintenance interval, guarantees machining center's machining efficiency.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural diagram of the preferred embodiment of the present invention.

Fig. 2 is an enlarged view at a in fig. 1.

In the figure, the cylinder body 1, the cylinder body 2, the push rod 3, the connecting rod 4, the small-diameter section inner cavity 5, the large-diameter section inner cavity 6, the disc spring 7 and the gasket are arranged.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.

An electrocardio main shaft push rod telescopic machanism in numerical control processing as shown in figure 1, is the utility model discloses the best embodiment, electricity main shaft axle center has inner chamber and an electricity main shaft side end face and is connected with cylinder body 1, 1 inside push rod 2 that has of cylinder body, electricity main shaft's connecting rod 3 cross-under is connected with push rod 2 including intracavity and tip, and the inner chamber includes path section inner chamber 4 and path section inner chamber 5, and the end face meets with path section inner chamber 4, outer end face meets with cylinder body 1 in path section inner chamber 5. When the device works, the push rod 2 is also provided with a piston, and the piston pushes the push rod 2 to do telescopic motion.

A plurality of disc springs 6 which are sleeved on the outer peripheral surface of the connecting rod 3 in series are arranged between the inner end surface of the inner cavity 5 of the large-diameter section and the push rod 2. Because the disc spring 6 is serially connected with the outer peripheral surface of the connecting rod 3, when the processing precision of the disc spring 6 is not high, the outer diameter of the disc spring 6 has an error which is divided into a plurality of parts, and the outer peripheral surface of the disc spring 6 with a larger diameter is easy to rub the inner surface of the inner cavity 5 of the large-diameter section. Therefore, two gaskets for segmenting the disc spring 6 can be arranged between the disc springs 6 which are formed by connecting the disc springs in series, and the two gaskets 7 divide the disc springs 6 which are formed by connecting the disc springs in series into three sections which are connected in series. The outer periphery of the connecting rod 3 is sleeved with the gasket 7, and the outer diameter of the gasket 7 is larger than the maximum outer diameter of any one disc spring 6. The diameter of the inner cavity 5 of the large-diameter section is larger than the outer diameter of the gasket 7. The liner 7 is supported between the connecting rod 3 and the inner surface of the inner cavity, so that the disc spring 6 is prevented from rubbing against the inner surface of the inner cavity in the compression and rebound processes to generate unnecessary abrasion. Meanwhile, the three series-connected disc springs 6 can transmit force in a sectional manner, so that the reset buffer effect is improved.

The numerical control machining center electric spindle push rod telescopic mechanism designed in the way is reasonable in structural design, and the disc spring 6 is adopted to replace an original common spring, so that the mechanical strength of the telescopic mechanism can be effectively improved. When push rod 2 moved forward, the 6 extrudees layer upon layer of dish spring, realizes connecting rod 3 at the cushioning effect of stretching out the in-process, when push rod 2 retracted backward, the 6 resilience of dish spring realized connecting rod 3 at the effect that the buffering of the in-process of retracting and reset, effectively guaranteed the buffer function that resets, and life is longer, effectively prolongs the maintenance interval, guarantees machining center's machining efficiency. Meanwhile, when a common spring is used as an elastic element and the disc spring 6 is partially damaged, a damaged disc spring 6 can be replaced independently, the whole disc spring does not need to be replaced, and the maintenance cost is low.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (2)

1. The utility model provides an electricity main shaft push rod telescopic machanism in numerical control processing, electricity main shaft axle center have inner chamber and electricity main shaft one side terminal surface and be connected with cylinder body (1), cylinder body (1) inside has push rod (2), and connecting rod (3) cross-under of electricity main shaft is connected its characterized in that at inner chamber and tip and push rod (2): the inner chamber includes path section inner chamber (4) and path section inner chamber (5), and path section inner chamber (4) meet, outer terminal surface and cylinder body (1) meet in path section inner chamber (5) interior terminal surface, be equipped with between path section inner chamber (5) interior terminal surface and push rod (2) and establish ties disc spring (6) that a plurality of that the overcoat was formed in connecting rod (3) outer peripheral face is established ties, is equipped with at least one between disc spring (6) that a plurality of established ties formed with disc spring (6) segmentation liner (7), liner (7) overcoat is in connecting rod (3) outer peripheral face, and liner (7) external diameter is greater than the maximum external diameter of arbitrary disc spring (6), and path section inner chamber (5) diameter then is greater than liner (7) external diameter.

2. The numerical control machining center electric spindle push rod telescoping mechanism of claim 1, characterized in that: two gaskets (7) are sleeved outside the outer peripheral surface of the connecting rod (3), and the two gaskets (7) divide a plurality of disc springs (6) which are connected in series into three sections which are connected in series.