TWM583901U - End plug type ball recirculation device - Google Patents

Abstract

The present invention provides an end plug ball reflow device, the main features of which are: a first and a second component which are combined with each other in a three-dimensional block shape, and the first and second end faces of the two components are joined together by the two parts. The first and second combined faces are combined to form a combination of the first and second ball guide grooves into a ball channel, and the ball channel has an axial port and a radial port, and the first and second components are radially arranged Relationship; a pair of dovetail-type card-incorporating members are disposed at the corresponding joints of the first and second combined faces, and the two-tailed male and female fasteners of the double-tailed-type card-incorporating members are disposed on opposite sides of the ball passage, and the unpacking direction corresponds to In the axial line; an extended upper cover portion is disposed at an end of the corresponding radial port of the first component and is of an equal width extension.

Description

End plug ball return

The present invention relates to a ball reflow device, and more particularly to an innovative structural type revealer for an end plug ball recirculator.

At present, the ball reflow type of the ball screw is mainly divided into two types: outer circulation recirculation type and end reflow type; wherein the end reflow type design is through the front and rear circulation paths, and the through hole on the nut is used as the steel ball reflow. The path is such that all the beads on the nut are covered with effective steel balls, so at the same nut length, the end reflow type usually has a higher dynamic load than the outer recirculation type.

However, looking at the conventional structure of the end-return type, there are still some problems and shortcomings in practical applications, and some users are criticized, for example, the local side of the ball reflow device is used as a nut structure. Part of the supporting interface of the steel ball, this type of structure will lead to excessive friction of the steel ball to accelerate wear and improve the operating noise, and must be processed with high precision for the nut itself to form a complete ball reflow together with the reflux device. In this way, in addition to the shortcomings of relatively improved working hours and relatively high costs, the difficulty of assembly is relatively improved. In addition, some conventional ball recirculating components are combined due to lack of proper card positioning mechanism, resulting in component combinations. The problem of poor stability of the state; another known ball reflow system is due to the local structure is too weak, and there are problems such as unsatisfactory structural strength, poor steering stability of the steel ball, and the like; such conventional ball recirculating devices are lacking. The disadvantages are still waiting for the relevant industry to pay more attention to and improve  Important technical issues.  

Therefore, in view of the problems existing in the above-mentioned conventional ball reflow structure, how to develop an innovative structure with more ideal practicability, the relevant industry must further strive to develop the goal and direction of the breakthrough; in view of this, the creator After years of experience in the manufacturing development and design of related products, the design and careful evaluation of the above objectives have resulted in a practical and practical creation.

The main purpose of this creation is to provide an end-plug ball reflow device. The technical problem to be solved is to make an innovative breakthrough in how to develop a new type of ball recirculator structure that is more ideal and practical.

Based on the foregoing objective, the present invention provides the end plug type ball return device, comprising: a first component and a second component combined with each other in a three-dimensional block shape, the first component including the first end face, the first a combined surface and a first ball guide groove in an arc-shaped configuration, the second member comprising a second end face, a second combination face, and a second ball guide groove in an arc-shaped configuration, the first end face and the second The end faces are connected to each other, and the first combination face and the second combination face are combined so that the first ball guide groove and the second ball guide groove are relatively merged into one ball passage of a circular cross section, and the ball passage includes an axial direction. Port and radial port, and the axial port is oriented in the same direction as the axial line, the radial port is oriented in the same direction as the radial line; and the combined configuration of the first component and the second component is along the ball screw The radial direction is an upper and lower arrangement relationship; a pair of dovetail-type card-incorporating members are disposed at a corresponding joint between the first combined surface and the second combined surface, and the double-tailed type of embedded card member comprises a two-tailed male and female fastener, and two Iris-type male and female fasteners are arranged at intervals in the ball channel Different sides, and the split direction of each dovetail male and female fasteners corresponds to an axial line; an extended upper cover portion is disposed at one end of the radial port of the first component, and the extended upper cover portion is of an equal width type Extending a set length, and extending the upper cover portion is provided with an extended guide groove connected to the first ball guide groove, and the two sides of the extended guide groove are oppositely defined to form two retaining edges; and the extended upper cover portion is opposite to the second member. One end of the ball guide groove has a radially convex shape.

By using this innovative unique structure and technical features, this creation can achieve the following advantages and practical advancement in comparison with the prior art:  First, through the combined configuration of the first and second components, the first and second ball guide grooves are combined to form a circle along the radial configuration of the ball screw. The full-shaped ball return channel structure of the section, which makes the ball completely covered by the ball recirculating structure itself during the reflow process, has the advantages of greatly reducing the friction coefficient and rolling noise, prolonging the service life of the component, and the like; The over-machining of the nut of the ball screw is eliminated, thereby achieving the advantages of greatly reducing the man-hour, cost and assembly difficulty, and practical economic benefits;  Secondly, through the shape characteristics of the double dovetail card-incorporating member, the combined state of the first and second members can achieve an extremely stable positioning state corresponding to the radial direction of the ball screw, and corresponding to the ball screw In terms of the axial direction, the first and second components have the advantages of being more convenient to disassemble and operate in groups;  Thirdly, through the extension of the extension of the upper cover portion, since the extended upper cover portion has the extended guide groove and the second retaining edge, the overall structural strength of the end plug type ball return device can be improved, and the stability of the ball guide can be further improved. And the special practical progress.  

Referring to Figures 1 through 7, there is shown a preferred embodiment of the present invention, but the embodiments are for illustrative purposes only and are not limited by the structure.

The end plug type ball returner A is shown in FIGS. 3 to 7 for assembling an axial end face 63 of a threaded hole 62 provided in a nut 61 of a ball screw 60, the axial end face. The recess 63 is provided with a receiving portion 64 for assembling and positioning the end plug ball recirculating device A, and an axial line L1 and a radial line L2 are virtualized according to the direction of the ball screw 60 (as shown in FIG. 3). Show).

The end plug type ball reflow device A includes a first component 10 and a second component 20 which are combined with each other in a three-dimensional block shape. The first component 10 includes a first end face 11 and a first portion. The combined surface 12 and one of the first ball guiding grooves 13 in an arc-shaped configuration; the second member 20 includes a second end surface 21, a second combined surface 22, and a second ball guide in an arc-shaped configuration a groove 23, wherein the first end face 11 and the second end face 21 abut each other, the first combination face 12 and the second combination face 22 are opposite each other, and the first ball guide groove is made 13 is merged with the second ball guide groove 23 into a ball passage 30 of a circular cross section, and the ball passage 30 includes an axial port 31 and a radial port 32, and the orientation of the axial port 31 is The axial line L1 faces the same direction, and the radial port 32 has the same orientation as the radial line L2; and wherein the combined configuration of the first component 10 and the second component 20 is along the ball The radial direction of the screw 60 is in an upper and lower arrangement relationship (as shown in FIG. 6); a double dovetail-type card member 40 is disposed on the first component 10 A combination face 12 is mated with the second combination face 22 of the second member 20, the double dovetail card member 40 includes a two-tailed male and female fastener 41, and the two-tailed male and female fasteners 41 are Disposed on the opposite sides of the ball passage 30, and wherein the split direction of each of the dovetail male and female fasteners 41 corresponds to the axial line L1; an extended upper cover portion 50 is disposed on the first component 10 corresponds to one end of the radial port 32, the extended upper cover portion 50 extends a set length in an equal width configuration, and the extended upper cover portion 50 is provided with an extended guide groove 51 connected to the first ball guide groove 13 The two sides of the extending guide groove 51 are oppositely defined to form two retaining edges 52; and wherein the extending upper cover portion 50 is radially convex with respect to one end of the second ball guiding groove 23 provided by the second member 20. .

As shown in FIG. 1 , in the first embodiment, the first end surface 11 of the first component 10 is further protruded from a side away from the extending upper cover portion 50 to form a hook-shaped bump 70 . The hook-shaped bump 70 is formed. An inner recess 71 is defined for a protruding hook shape; the hook projection 70 and the inner recess 71 are provided in this example as shown in FIG. 5, and are used as an end plug ball returner. When the A is disposed in the receiving portion 64 of the axial end surface 63 of the nut 61, a retaining ring 90 is further used as a positioning member thereof, and a portion of the retaining ring 90 is embedded in the hook-shaped projection 70. The inner groove 71 serves to position the end plug ball returner A.

As shown in the first and second figures, in this example, the first end facing surface 11 of the first member 10 and the second end facing surface 21 of the second member 20 are further provided with an auxiliary positioning lug 81, 82. Each of the auxiliary positioning lugs 81 and 82 is in a shape protruding toward the radial direction of the ball screw 60, and the auxiliary positioning lug 81 and the second end surface 21 are disposed on the first end surface 11 The auxiliary positioning lugs 82 are arranged to protrude in opposite directions; the auxiliary positioning lugs 81 and 82 disclosed in this example are mainly capable of amplifying the card insertion area for the installation state of the end plug type ball reflow device A. A more stable effect.

With the above-mentioned structural composition and technical features, the installation state of the end-mounted ball reflow device A disclosed in the present invention is as shown in FIGS. 5 to 7, and is assembled in the axial direction of the screw hole 62 provided in the nut 61. The end surface 63 is provided in the accommodating portion 64, and the end plug type ball recirculating device A can be arranged in two pairs in the axial direction of the nut 61 as shown in FIG. 7, which is shown in the figure. A connecting passage 65 is defined in the upper side wall of the nut 61 for engaging the axial port 31 provided in the ball passage 30 of the two-end ball type ball returner A, thereby forming a ball circulation guiding path.

A‧‧‧End plug ball return

L1‧‧‧ axial line  L2‧‧‧ radial line

10‧‧‧ first part  11‧‧‧ first end face

12‧‧‧First combination face  13‧‧‧The first ball guide groove

20‧‧‧ second part  21‧‧‧Second end face

22‧‧‧Second combination surface  23‧‧‧Second ball guide groove

30‧‧‧Road Channel  31‧‧‧Axial port

32‧‧‧radial port  40‧‧‧Double-tailed inset components

41‧‧‧End-tail male and female fasteners  50‧‧‧Extension of the upper cover

51‧‧‧Extended guide groove  52‧‧‧ Guardian

60‧‧‧Rolling screw  61‧‧‧ nuts

62‧‧‧Threaded holes  63‧‧‧Axial end face

64‧‧‧ 容 部  65‧‧‧Connected channel

70‧‧‧hook bumps  71‧‧‧ Inside groove

81, 82‧‧‧Auxiliary positioning lugs  90‧‧‧ buckle  

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is an exploded perspective view of a preferred embodiment of the present invention.  Figure 2 is a combined perspective view of a preferred embodiment of the present invention.  Figure 3 is a perspective view of a preferred embodiment of the present invention in which the end plug ball reflow device is assembled to a ball screw.  Solve the stereogram.  Figure 4 is a set of the preferred embodiment of the ball plunger reflow device assembled in the ball screw.  Combined with a stereogram.  Figure 5 is a set of the preferred embodiment of the ball spring reflow device assembled in the ball screw  Axial cross-sectional view.  Figure 6 is a set of the preferred embodiment of the ball plunger reflow device assembled in the ball screw  A radial cross-sectional view.  Figure 7 is a schematic diagram of the state in which the end plug ball returner is used to guide the ball.  

Claims (3)

An end plug ball reflow device for assembling an axial end face of a threaded hole provided in a nut of a ball screw, wherein the axial end face is recessed with a receiving portion for the end plug ball to reflow The device is assembled and positioned, and an axial line and a radial line are virtualized according to the direction of the ball screw; the end plug type ball return device comprises:
Combining one of the first component and the second component in a three-dimensional block shape, the first component includes a first end face, a first combination face, and a first ball guide groove in an arc-shaped configuration; The second component includes a second end face, a second combination face, and a second ball guide groove in an arc-shaped configuration, wherein the first end face and the second end face abut each other, the first a combination surface and the second combination surface system are opposite to each other, and the first ball guide groove and the second ball guide groove are combined to form a ball passage of a circular cross section, and the ball channel comprises an axial port And a radial port, the orientation of the axial port being the same as the direction of the axial line, the orientation of the radial port being the same as the direction of the radial line; and wherein the first component and the second component are The combined configuration type is in an upper and lower arrangement relationship along a radial direction of the ball screw;
a pair of dovetail-type card members, wherein the first combination face of the first component and the second combination face of the second component correspond to each other, the double dovetail card-incorporating component comprises a two-tailed male and female fastener, and The two-tailed male and female fasteners are disposed at different sides of the ball passage, and wherein the splitting direction of each of the dovetail male and female fasteners corresponds to the axial line; and an extended upper cover portion, Provided at one end of the first component corresponding to the radial port, the extended upper cover portion is extended by a set length in an equal width profile, and the extended upper cover portion is provided with an extended guide groove system connected to the first ball guide groove Conducted, and the two sides of the extension guide groove are oppositely defined to form two retaining edges;
And wherein the extended upper cover portion is radially convex with respect to one end of the second ball guide groove provided by the second member. The end plug ball reflow device of claim 1, wherein the first end of the first member is convexly disposed with a hook-shaped protrusion facing away from a side of the extended upper cover portion, the hook shape The bump is defined as a protruding hook shape and defines an inner groove. The end plug ball reflow device of claim 1 or 2, wherein the first end face of the first member and the second end face of the second member are further provided with an auxiliary positioning lug. Each of the auxiliary positioning lugs is in a radial projection shape toward the ball screw, and the auxiliary positioning lugs provided on the first end surface and the auxiliary positioning lugs are disposed on the second end surface The configuration relationship of the opposite direction of the protrusion.