TWM464558U - Ball screw with adjustable reflow module - Google Patents

Description

Ball screw with adjustable reflow module

This creation is a ball screw, especially an internal circulation ball screw.

According to the linear components (ball screw, linear slide), the transmission components commonly used in the industry are used in a large number of places where linear motion is required in various machines to move workpieces, carry goods or arrange workpieces. . It is not difficult to find that linear components play an important role in the transmission industry in the industry, as well as the characteristics of the work that needs to be moved frequently during work.

Referring to FIG. 10, it is a cross-sectional view showing the assembly of a nut (1) and a reflow sheet (2) of a conventionally known internal circulation type ball screw. The nut (1) has a perforation (11). a spiral rolling groove (111) is disposed on the inner edge surface of the through hole (11), and a mounting hole is formed on the outer edge surface of the nut (1), the mounting hole is through the wall surface of the nut (1) And communicating with the through hole (11) and the rolling groove (111), the reflowing piece (2) is provided with a plurality of return channels (21), and when the reflowing piece (2) is installed in the mounting hole, the return channel ( 21) is engaged with the rolling groove (111) to form a closed path between the two adjacent rolling grooves (111); however, the mounting hole or the reflowing piece (2) may be processed due to slight error or The burrs cause the misalignment between the two ends of the return channel (21) and the rolling groove (111) (as indicated by the symbol G in the figure), and because of the wall surface and installation of the reflow plate (2) Inner wall of the hole For the interference fit, it is impossible to adjust the reflowing piece (2) in any direction in the mounting hole to make the misalignment distance (G) disappear; therefore, the person who assembles the reflowing piece (2) can only use the handle grinding wheel to Grinding method to trim the misalignment spacing (G), but this will lengthen the entire assembly time, which will result in an increase in manufacturing cost, and the quality of the ball screw will not be uniform after trimming (because each assembler grinds out The cross-section of the return channel is not uniform, so sometimes the wall surface of the return flow is thinned due to too much grinding, and the rolling element is broken when it hits the wall surface, and the ball screw is broken, which also causes a large increase in customer complaint rate. Moreover, because of the problem of misalignment between the return passage (21) and the rolling groove (111), when the rolling body (not shown) is circulated, the problem that the rolling element hits the misalignment occurs, and the ball screw is operated relatively. It is quite unsmooth and is more likely to cause the reflowing sheet (2) to be damaged by the impact of the rolling elements, which shortens the service life of the ball screw.

In summary, this kind of conventional technology is still necessary for improvement and improvement.

Based on the problems of the prior art, the author has painstakingly researched and accumulated experience in the industry to develop a ball screw with an adjustable reflow module, which can be used to adjust the return flow and the rolling groove after the reflow module is assembled. The misalignment distance between them is to make the connection between the two better.

In order to achieve the above object, the present invention is a ball screw with an adjustable reflow module, comprising: a long axis extending from a direction into a long strip structure defining the extending direction as an axial direction, the length The shaft is provided with a spiral rolling groove; a nut is provided with a through hole for the long shaft to pass through, the inner edge surface of the hole is provided with a rolling groove opposite to the rolling groove, and the nut is further provided with a mounting a hole, the mounting hole is in communication with the through hole and the rolling groove is cut into a discontinuous shape; a reflow module is disposed in the mounting hole, and the reflow module comprises a return body and a fixing member, the reflow The body is provided with a plurality of return channels, the return channel is engaged with the rolling groove; wherein the fixing member is limited by the mounting hole in any direction, and the reflow system can be oriented in the axial direction relative to the fixing member mobile.

Wherein, the return body and the fixing member are respectively provided with a sliding track, and the two sliding paths are structures with concave and convex fit.

The return body is provided with an adjustment groove.

Prior art 1‧‧‧ Nuts 11.‧‧ Perforated 111‧‧ ‧ Rolling groove 2‧‧ ‧ Reflow film 21‧‧ ‧ Return path G‧‧‧ Misplaced spacing This creation 1‧‧ long axis 11‧‧ Ditch 2‧‧‧ Nuts 21‧‧‧Perforated 211‧‧‧ Rolling groove 22‧‧‧ Mounting hole 221‧‧‧Limited section 222‧‧‧Wall 223‧‧‧ Screw hole 3‧‧‧Rolling parts 4‧ ‧‧Reflow module 41‧‧‧Return body 411‧‧Reflow part 4111‧‧Return path 4121‧‧‧First slide 4122‧‧‧Adjustment slot 421‧‧‧ Body part 4211‧‧‧through hole 422‧‧‧Second slipway 5‧‧‧Adjustment G‧‧‧Displacement spacing A‧‧‧ Screw X‧‧‧Axis direction Y‧‧‧Direction H‧‧‧ clearance

The first figure is a system diagram of the ball screw with the adjustable reflow module of the first embodiment of the present invention.
The second figure is a combination diagram of the ball screw with the adjustable reflow module according to the first embodiment of the present invention, and is matched with the adjusting member.
The third figure is a combination diagram of the ball screw with the adjustable reflow module according to the first embodiment of the present invention, and is combined with the adjusting member.
The fourth figure is a cross-sectional view of the ball screw with the adjustable reflow module of the first embodiment of the present invention.
The fifth to sixth figures are the process diagrams for adjusting the reflowing sheet of the first embodiment of the creation.
The seventh drawing is a system diagram of the ball screw with the adjustable reflow module of the second embodiment of the present invention.
The eighth figure is a combination diagram of the ball screw with the adjustable reflow module according to the second embodiment of the present invention, and is matched with the adjusting member.
The ninth drawing is a combination diagram of the ball screw with the adjustable reflow module according to the second embodiment of the present invention, and is combined with the adjusting member.
The tenth figure is a schematic diagram of the misalignment between the return channel and the rolling groove after the combination of the reflow plate and the nut of the prior art.

Please refer to the first to sixth figures, which is a drawing of the first embodiment of the present invention. The present invention is a ball screw with an adjustable reflow module, comprising: a long axis (1), a nut (2), a plurality of rolling elements (3) and a reflow module (4), the long axis (1) extending from a direction into a strip-like structure, the extension direction being defined as an axial direction (X), The long shaft (1) is provided with a spiral rolling groove (11); the nut (2) is provided with a through hole (21) through which the long shaft (1) is pierced, and the inner edge of the through hole (21) The surface is provided with a rolling groove (211) opposite to the rolling groove (11), and the nut (2) is further provided with a mounting hole (22), the mounting hole (22) is in communication with the through hole (21), and The rolling groove (211) is cut into a discontinuous shape; the reflow module (4) is disposed in the mounting hole (22), and the reflow module (4) comprises a reflow body (41) and a fixing member (42), in the embodiment, the fixing member (42) is two, and the two are fixed. (42) comprising a main body portion (421) and a second sliding path (422) provided at one end of the main body portion (421), the recirculation body (41) being composed of a reflow portion (411) and a slip portion (412) The reflow portion (411) is provided with a plurality of return passages (4111), and the return passage (4111) is engaged with the rolling groove (211), and the two sides of the sliding portion (412) are respectively disposed There are two first sliding paths (4121) of the second sliding track (422). In the embodiment, the fixing members (42) are respectively disposed on two sides of the sliding portion (412), and the two The second sliding track (422) is respectively engaged with the two first sliding paths (4121) of the sliding portion (412), so that the returning body (41) can slide relative to the two fixing members (42), The first sliding path (4121) and the second sliding path (422) are structures with concave-convex fit, for example, a fit of the dovetail groove and the dovetail block;

Referring to the fourth figure, the reflow module (4) is inserted into the mounting hole (22) by a through hole (21), and the mounting method is called an inner plug type, so that the fixing member (42) is The mounting hole (22) limits the degree of freedom in any direction. As can be seen from the figure, the mounting hole (22) is provided with a limiting portion (221) to prevent the reflowing module (4) from falling out of the radial direction (Y). And surrounding the wall surface (222) of the body portion (421) of the fixing member (42) to achieve the effect of limiting the degree of freedom; and both ends of the axial direction (X) of the returning body (41) and the mounting hole (22) The wall surface (222) maintains a gap (H) so that the return body (41) can be moved in the axial direction (X) relative to the fixing member (42) after being mounted to the mounting hole (22).

Referring to the fifth and sixth figures, when the reflow module (4) is assembled, the ends of the return channel (4111) may be caused by a slight error or a burr factor as described in the prior art. There is a misalignment at the junction of the rolling groove (211) (such as the misalignment spacing of the component symbol G), as shown in the fourth figure, so that the displacement of the fixing body (42) can be performed by the returning body (41). The offset spacing (G) is eliminated, and the adjusting portion (5) (eg, a word driver) can be inserted into the sliding portion by using an adjusting member (5) as shown in the second and third figures. After the adjustment groove (4122) is set, the force of the adjusting member (5) is applied to displace the return body (41); and after the adjustment, as shown in the sixth figure, even the return path (4111) and the rolling The groove (211) can be smoothly connected to avoid the problem of the prior art; and the adjusted reflow module (4) fixes the fixing member (42) and the return body (41) to each other by adhesive means, and the ball is fixed. screw The fixing member (42) and the return body (41) are no longer in relative displacement during the sense of operation.

Furthermore, please refer to the seventh to ninth drawings, which is a diagram of the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that the reflow module (4) is composed of a nut ( 2) The external mounting hole (22) is installed in the outer plug type, and the mounting hole (22) is further provided with a plurality of screw holes (223), and the fixing member of the reflow module (4) ( 42) further having a through hole (4211) opposite to the screw hole (223). After the assembly, the fixing member (42) is first combined with the return body (42), and the nut (2) is externally The reflow module (4) is placed in the mounting hole (22), and the through hole (4211) and the screw hole (223) are oppositely disposed, and then the plurality of screws (A) are inserted through the through hole (4211). The screw hole (223) is screwed to fix the fixing member (42) to the nut (2) for the purpose of fixing the reflow module, and the rest of the structure and function are the same as the first embodiment. I will not repeat them here.

In view of the above, the "industry availability" of this creation should be unquestionable. In addition, the characteristic techniques revealed in the examples in this case have not been seen in publications before, and have not been disclosed. The use, not only has the fact that the effect is improved as described above, but also has additional functions that cannot be neglected. Therefore, the "novelty" and "progressiveness" of the creation have been in compliance with the patent regulations, and the application for creating a patent is proposed according to law. Please give us a review and grant a patent as soon as possible.

The above description of the embodiments is intended to illustrate the present invention and is not intended to limit the present invention. Therefore, variations of numerical values and substitution of equivalent elements are still within the scope of the present invention.

1‧‧‧ long axis

11‧‧‧ rolling groove

2‧‧‧ nuts

21‧‧‧Perforation

22‧‧‧Installation holes

3‧‧‧Rolling parts

4‧‧‧Reflow module

41‧‧‧Return to the body

411‧‧‧Return Department

4111‧‧‧Return

412‧‧‧Slide

4121‧‧‧First slipway

4122‧‧‧Adjustment slot

42‧‧‧Fixed parts

421‧‧‧ Body Department

422‧‧‧Second slipway

X‧‧‧axis direction

Claims (3)

A ball screw with an adjustable reflow module, comprising: a long shaft extending from a direction into a strip-shaped structure, wherein the extending direction is an axial direction, and the long shaft is provided with a spiral rolling groove; a nut is provided with a through hole for the long shaft, the inner edge surface of the through hole is provided with a rolling groove opposite to the rolling groove, and the nut is further provided with a mounting hole, and the mounting hole is connected with the through hole And the rolling groove is cut into a discontinuous shape; a reflow module is disposed in the mounting hole, the reflow module comprises a reflow body and a fixing member, and the reflow body is provided with a plurality of return channels, the reflow The trajectory is engaged with the rolling groove; wherein the fixing member is restricted by the mounting hole in any direction, and the recirculating system is movable in the axial direction relative to the fixing member. The ball screw with an adjustable reflow module according to claim 1, wherein the return body and the fixing member are respectively provided with a sliding track, and the two sliding paths are structures with concave and convex fit. The ball screw with an adjustable reflow module according to claim 1, wherein the return body is provided with an adjustment groove.