TWI811871B - Waterproof main shaft cover structure - Google Patents

Abstract

A waterproof main shaft cover structure includes a main shaft and a soft elastic cover, and the soft elastic cover has a center cover plate and a side sealed oblique ring. The soft elastic cover is fixed to an end of the main shaft. When the main shaft stops operating, the soft elastic cover is sealed with and covered onto the end of the main shaft to prevent water from entering. When the main shaft is operating, a centrifugal force is exerted on the soft elastic cover to drive the side sealed oblique ring to move outwardly away from the center cover plate, and the gas of the air curtain at the front end of the main shaft will be guided from the inside of the side sealed oblique ring to the end of the main shaft to form an outward divergent air curtain, so as to prevent and blow away the processing chips and achieve the effects of excellent airtightness and structural functionality.

Description

Spindle waterproof cover structure

The present invention relates to a spindle waterproof cover structure, and in particular to a waterproof and dust-expelling cover structure applied to a processing machine spindle, which belongs to the technical field.

According to the currently known waterproof cover structure of a processing machine spindle, as shown in Figure 8, it includes a spindle 30. The spindle 30 is provided with a sleeve body 31, a spindle body 32 and an outer cover body 33. The cover body 33 is made of a metal rigid material, the spindle body 31 is pivotally located in the sleeve body 32, and the outer cover body 33 is located at the end sides of the spindle body 31 and the sleeve body 32, and the outer cover body 33 is The cover body 33 is combined and fixed on the sleeve body 32. The outer cover body 33 is used to waterproof the sleeve body 31 and the spindle body 32. However, it only has a basic waterproof effect and cannot achieve a sealed waterproof effect. The structure is also relatively inconvenient to assemble and use, so improvements are necessary.

In view of the problems of the conventional waterproof cover structure of the spindle of processing machines, such as poor sealing performance and poor structural functionality, the present invention completes the spindle waterproof cover structure of the present invention.

The main purpose of the present invention is to provide a spindle waterproof cover structure, which includes a spindle body and an elastic soft cover body. The spindle body is provided with a shaft sleeve and a spindle spindle. The end side of the shaft sleeve is provided with a clamping ring groove, and the spindle spindle is pivoted in the sleeve, and the spindle spindle is provided with an end head, the end head is fixed with at least one positioning bump, and the elastic soft cover is provided with a central cover plate and one side of the closed inclined ring edge, the center cover plate is provided with a rear clamping ring flange extending backward between the opposite side sealed inclined ring edges on the rear side of the center cover plate, and the center cover plate is provided with a set of fitting holes. The edge of the hole is provided with at least one positioning and fixing notch, The fitting hole set in the center cover of the elastic soft cover is fitted to the spindle mandrel set on the main shaft body. The set position of the fitting hole is a fixed notch, and the positioning is clamped at the end of the spindle mandrel. and the rear clamping ring flange provided on the elastic soft cover body is clamped and fixed to the clamping ring groove provided on the shaft sleeve 11 of the main shaft body.

In a preferred embodiment, a positioning bump is provided on two opposite sides of the end of the spindle mandrel, and a positioning and fixing recess is provided on two opposite sides of the fitting hole of the elastic soft cover, and the two fitting holes The set positioning fixing notches on the side are positioned and locked on the set positioning bumps on both sides of the end head of the spindle mandrel, which increases the stability of positioning and clamping and enhances the multiple variability of the present invention.

In a preferred embodiment, the spindle body is further provided with a locking groove on one side or two opposite sides of the end portion of the spindle spindle, and the positioning protrusions are locked and fixed in the locking groove, thereby increasing the The convenience of assembly and use enhances the multiple variability of the present invention.

In a preferred embodiment, the end portion of the spindle spindle of the spindle body is further provided with several fixing holes. The fixing holes are screw holes, and the elastic soft cover body is provided with several fixing holes around the fitting hole. The fixing hole is provided with a fixing piece, and the fixing piece is a fixing screw, and the fixing holes set in the fitting hole of the elastic soft cover body are opposite to the fixing holes set in the end of the spindle spindle of the spindle body. , and are combined and fixed with fixing pieces provided in the fixing holes to increase the stability of the elastic soft cover body relative to the main shaft body, so as to enhance the multiple variability of the present invention.

In a preferred embodiment, a latching convex portion is provided on the end side of the positioning convex portion of the end portion of the spindle spindle of the spindle body. The latching convex portion of the positioning convex portion is locked and fixed on the elastic soft material. The positioning and fixing recess of the fitting hole provided in the central cover plate of the cover body increases the stability of the elastic soft cover body relative to the main shaft body, thereby enhancing the multiple variability of the present invention.

Through the cooperation of the main shaft body and the elastic soft cover body, when the main shaft body stops running, the elastic soft cover body is relatively tightly connected to the shaft sleeve of the main shaft body and the end side of the spindle spindle to prevent the shaft sleeve of the main shaft body and the main shaft from slipping. Water enters the spindle. When the spindle body is running, the elastic soft cover is affected by the centrifugal force of the rotation of the spindle body, causing the side sealing inclined ring edge to swing outward relative to the central cover plate, and the spindle body is exposed to the gas of the air curtain at the front end of the processing. , will be guided from the inside of the side sealing bevel ring to the bushing of the spindle body and the end side of the spindle spindle, forming an outward diverging air curtain to prevent and blow away machining chips, so as to achieve the effects of tightness in use and good structural functionality.

10:Spindle body

11: Shaft sleeve

110: Snap ring groove

12:Spindle mandrel

120: terminal head

121: Positioning bump

121A: Locking convex part

122: Clamping groove

123:Fixing hole

20: Elastic soft cover

21: Center cover

210: Fitting hole

211: Positioning and fixing notch

212:Fixing hole

212A: Fixing parts

22: Side sealed inclined ring edge

23: Rear clamping ring flange

30:Spindle

31: Shaft sleeve body

32: mandrel body

33:Outer cover

[Figure 1] is a schematic diagram of the three-dimensional assembled state of the spindle waterproof cover structure of the present invention.

[Fig. 2] is a three-dimensional partially exploded schematic diagram of the spindle waterproof cover structure of the present invention.

[Fig. 3] is a reference view of a partial cross-sectional side view of the spindle waterproof cover structure of the present invention.

[Figure 4] is a partially enlarged side cross-section of the spindle waterproof cover structure of the present invention. The elastic soft cover body is in a sealed state relative to the tight-fitting cover on the end side of the spindle body.

[Fig. 5] is a partially enlarged side cross-section of the main shaft waterproof cover structure of the present invention. The elastic soft cover body is subjected to centrifugal force to cause the side sealing inclined ring edge to be thrown outward relative to the central cover plate.

[Figure 6] is a reference diagram of an exploded state of an example of the main shaft body and the elastic soft cover body combined and fixed structure of the first embodiment of the spindle waterproof cover structure of the present invention.

[Figure 7] An example of a fixed structure of a combination of a locking convex portion and an elastic soft cover body on the end side of the positioning convex portion of the end portion of the spindle spindle of the spindle body of the spindle waterproof cover structure according to the second embodiment of the present invention. Exploded state reference diagram.

[Fig. 8] is a side cross-sectional reference view of the waterproof cover structure of a conventional processing machine spindle according to the present invention.

In order to enable you, the review committee, to further understand the structure, characteristics and other purposes of the present invention, the following preferred embodiments are described in detail with drawings. However, the embodiments illustrated in the illustrations are for illustrative purposes only. It is not the only limitation on patent applications.

Please refer to Figures 1 to 3, which are reference drawings of the main shaft waterproof cover structure of the present invention in a three-dimensional assembled state, a three-dimensional partially exploded state, and a partial cross-sectional side view. They include:

A spindle body 10. The spindle body 10 is provided with a sleeve 11 and a spindle mandrel 12. The sleeve 11 is provided with a snap ring groove 110 on its end side, and the spindle mandrel 12 is pivoted on the sleeve 11. inside, and the spindle mandrel 12 is provided with an end portion 120, and the end portion 120 is fixed with at least one positioning bump 121; and

An elastic soft cover body 20. The elastic soft cover body 20 is provided with a central cover plate 21 and a sealed inclined ring edge 22 on one side. The rear side of the central cover plate 21 and the sealed inclined ring edge 22 on the opposite side have a rearward extending protrusion. There is a rear snap ring flange 23, and the center cover 21 is provided with a fitting hole 210. The edge of the fitting hole 210 is provided with at least one positioning and fixing notch 211. The center cover 21 is provided with a fitting hole 210. Fitted with the spindle mandrel 12 provided on the spindle body 10, the fitting hole 210 is set with a fixed notch 211, which is positioned and clamped with the set positioning bump 121 of the end head 120 of the spindle mandrel 12, and is then locked The ring flange 23 is clamped and fixed to the clamping ring groove 110 provided in the shaft sleeve 11 of the spindle body 10 .

Through the cooperation of the above structures, the spindle waterproof cover structure of the present invention is completed.

Please refer to Figures 1 to 5, which are the three-dimensional assembled state, three-dimensional partially exploded state, side view partial cross-section state, and side view cross-section partial enlargement of the spindle waterproof cover structure of the present invention. The elastic soft cover body is relatively tightly connected to the spindle body. The end side is in a sealed state and the side section is partially enlarged. The elastic soft cover body is subject to centrifugal force so that the side sealing inclined ring flangs outward relative to the center cover plate. Reference picture, the center cover plate 21 of the elastic soft cover body 20 is set to fit The hole 210 is adapted to the spindle mandrel 12 provided on the spindle body 10. The fixed recess 211 set in the fitting hole 210 is positioned and clamped on the set position bump 121 of the end head 120 of the spindle mandrel 12, and The rear clamping ring flange 23 provided on the elastic soft cover 20 is clamped and fixed to the clamping ring groove 110 provided on the sleeve 11 of the main shaft body 10. Through the cooperation of the main shaft body 10 and the elastic soft cover 20, When the spindle body 10 stops When the operation is stopped, the elastic soft cover body 20 is in close contact with the end side of the sleeve 11 and the spindle spindle 12 of the spindle body 10 to prevent water from entering the sleeve 11 and the spindle spindle 12 of the spindle body 10. During operation, the elastic soft cover body 20 is affected by the centrifugal force of the rotation of the spindle body 10, causing the side sealing inclined ring edge 22 to swing outward relative to the center cover plate 21, and the gas in the air curtain at the front end of the spindle body 10 will flow from the side. The inner side of the sealed inclined ring 22 guides the sleeve 11 of the spindle body 10 and the end side of the spindle mandrel 12 to form an air curtain that radiates outward to prevent and blow away machining chips, so as to achieve the effects of tightness in use and good structural functionality.

Please refer to Figure 2, which is a three-dimensional partially exploded schematic diagram of the spindle waterproof cover structure of the present invention. The end portion 120 of the spindle mandrel 12 is provided with a positioning bump 121 on both sides of the end portion 120, and the elastic soft cover 20 is A positioning and fixing notch 210 is provided on both sides of the fitting hole 21 opposite to each other. The positioning and fixing notches 211 set on both sides of the fitting hole 210 are positioned and clamped by positioning bumps set on both sides of the end head 120 of the spindle mandrel 12 121. Increase the stability of positioning and clamping to enhance the multiple variability of the present invention.

Please refer to Figure 2, which is a three-dimensional partially exploded schematic diagram of the spindle waterproof cover structure of the present invention. The end portion 120 of the spindle mandrel 12 of the spindle body 10 is further provided with a locking groove on one side or two opposite sides. 122, its positioning protrusions 121 are locked and fixed in the locking groove 122, which increases the convenience of assembly and use and enhances the multiple variability of the present invention.

Please refer to FIG. 6 , which is an exploded reference view of an example of a fixed structure in which the main shaft body and the elastic soft cover body are combined with the main shaft waterproof cover structure according to the first embodiment of the present invention. The end of the main shaft spindle 12 of the main shaft body 10 is provided. The portion 120 is further provided with a plurality of fixing holes 123, which are screw holes, and a plurality of fixing holes 212 are provided around the fitting hole 21 of the elastic soft cover 20. The fixing holes 212 are respectively provided with a fixing piece 212A, and the fixing hole 212 is provided with a fixing piece 212A. Part 212A is a fixing screw. The fitting hole 21 of the elastic soft cover 20 is provided with a number of fixing holes 212, which is opposite to the number of fixing holes 123 of the end portion 120 of the spindle mandrel 12 of the spindle body 10, and is fixed with a fixing hole 212. The fixing piece 212A provided in the fixed hole 212 is combined and fixed to increase the stability of the elastic soft cover 20 relative to the main shaft body 10 to enhance the multiple variability of the present invention.

Please refer to FIG. 7 , which is a second embodiment of the spindle waterproof cover structure of the present invention. The positioning convex portion of the end portion of the spindle body of the spindle body is provided with a clamping convex portion on the end side and a combination of the elastic soft cover body. Referring to the exploded state diagram of the fixed structure example, the positioning protrusion 121 of the end portion 120 of the spindle body 10 is provided with a locking protrusion 121A on the end side of the positioning protrusion 121. , the positioning and fixing notch 211 provided in the fitting hole 210 of the central cover 21 of the elastic soft cover 20 is locked and fixed to increase the stability of the combination of the elastic soft cover 20 with respect to the main shaft body 10, so as to enhance the multi-functionality of the present invention. variability.

To sum up, the present invention can indeed achieve the above-mentioned functions and purposes. Therefore, the present invention should meet the requirements for patent application and the application should be filed in accordance with the law.

10:Spindle body

11: Shaft sleeve

12:Spindle mandrel

120: terminal head

121: Positioning bump

122: Clamping groove

20: Elastic soft cover

21: Center cover

210: Fitting hole

Claims (6)

A spindle waterproof cover structure, which includes: a spindle body, the spindle body is provided with a sleeve and a spindle mandrel, the end side of the sleeve is provided with a retaining ring groove, and the spindle mandrel is pivoted on Inside the shaft sleeve, the spindle spindle is provided with an end head, which is fixed with at least one positioning bump; an elastic soft cover body, the elastic soft cover body is provided with a central cover plate and a sealing slope on one side Ring edge, the back side of the center cover plate is provided with a rear clamping ring flange between the closed oblique ring edges on the opposite side, and the center cover plate is provided with a fitting hole, and the edge of the fitting hole is provided with at least one The positioning and fixing recess is set with a fitting hole in the center cover, which is fitted with the spindle mandrel set on the spindle body. The positioning and fixing recess is set in the fitting hole, and the positioning and fixing recess is set at the end of the spindle mandrel. and the rear clamping ring flange is clamped and fixed to the clamping ring groove provided on the shaft sleeve of the main shaft body; and wherein, the main shaft body and the elastic soft cover cooperate, and when the main shaft body stops running, the elastic The soft cover is relatively tightly connected to the sleeve of the spindle body and the end side of the spindle spindle to prevent water from entering the sleeve of the spindle body and the spindle spindle. When the spindle body is running, the elastic soft cover is affected by the centrifugal force of the rotation of the spindle body. The action makes the side sealing inclined ring flang outward relative to the center cover, and the gas in the air curtain at the front end of the spindle body will be guided from the inside of the side sealing inclined ring to the shaft sleeve of the spindle body and the end side of the spindle spindle, forming The outward diverging air curtain prevents and blows away machining chips. The spindle waterproof cover structure as described in claim 1, wherein the end of the spindle spindle of the spindle body is further provided with a plurality of fixing holes, and the elastic soft cover body is provided with a plurality of fixing holes around the fitting hole. Each hole is provided with a fixing piece, and the fixing holes set in the fitting hole of the elastic soft cover body are opposite to the fixing holes set in the end of the spindle spindle of the spindle body, and are combined with the fixing pieces set in the fixing holes. fixed. The spindle waterproof cover structure as described in claim 2, wherein the fixing hole at the end of the spindle spindle of the spindle body is a screw hole, and the fixing holes set around the fitting hole of the elastic soft cover body are The fixing part is a fixing screw, and the fixing holes set in the fitting hole of the elastic soft cover are opposite to the fixing holes set in the end of the spindle spindle of the spindle body, and are locked with the fixing parts set in the fixing holes. Fixed together. The spindle waterproof cover structure as described in any one of claims 1 to 3, wherein a locking convex portion is provided on the end side of the positioning convex portion of the end portion of the spindle arbor of the spindle body, and the positioning convex portion of the spindle body is The latching convex portion is latched and fixed on the edge of the latching groove provided at the end of the spindle mandrel. The spindle waterproof cover structure as described in any one of claims 1 to 3, wherein a positioning bump is provided on two opposite sides of the end of the spindle mandrel, and the fitting hole of the elastic soft cover is arranged on two opposite sides. There is a positioning and fixing recess, the positioning and fixing recesses are set on both sides of the fitting hole, and the positioning and fixing notches are set on two sides of the end head of the spindle mandrel. The spindle waterproof cover structure as described in any one of claims 1 to 3, wherein the spindle body is further provided with a locking groove on one side or two opposite sides of the end where the spindle mandrel is located, and the positioning protrusion thereof The clamp is fixedly arranged in the clamp groove.