TWM473459U - Cooling type screw - Google Patents

Description

Cooling screw

This creation is a part of a linear transmission element, especially a cooling screw used for a ball (column) screw.

As shown in the third figure of Japanese Patent Laid-Open No. 2001295909, in order to improve the screw cooling effect of the ball screw, a first-class road pipe is arranged in the perforation of the screw, and it can be clearly seen from the figure that the flow pipe One end is connected to the external cooling system (the figure is displayed but understandable by the flow direction of the cooling water), and the other end is suspended as shown in the figure, so when the screw is driven by the motor, the flow tube is free. The end will be shaken due to the rotation of the screw, so that the abnormal sound is generated and the circulation of the coolant is not smooth, so that the cooling effect is not good, so there is a need for improvement in this part.

In view of the above problems, the main purpose of this creation is to develop a fixed structure that can effectively support the internal circulation pipe of the screw.

In order to achieve the above object, the present invention is a cooling screw comprising: a screw which is elongated in a direction into an elongated structure defining the direction of elongation as an axial direction, the screw system being provided with an axial direction and The through hole in the axial direction is provided with a spiral rolling groove; a circulation pipe is disposed on the through hole, and one end of the through hole is provided with a supporting component to apply an axial direction force to the circulation pipe.

Preferably, the support assembly comprises a plug body, a bearing and a support member, the plug body has an external thread portion at one end and a connecting protrusion at the other end, the external thread portion and the internal thread provided by the through hole are mutually The bearing is sleeved on the connecting protrusion, and the supporting member has a set of holes at one end and an abutting portion at the other end, the sleeve is sleeved on the outer edge of the bearing, so that the supporting member can be The abutting portion is placed at an end of the circulation tube with respect to the rotation of the connecting protrusion.

Preferably, the supporting component comprises a plug body and a rolling body, the plug body has an external threaded portion at one end, and the other end has a connecting convex portion, and the external threaded portion is screwed with the internal thread provided by the through hole. The connecting protrusion is recessed with a limiting slot, the rolling system is accommodated in the limiting slot and can be rotated inwardly, and the rolling system is placed at the end of the circulating tube.

1‧‧‧ screw
11‧‧‧Perforation
111‧‧‧ internal thread
12‧‧‧ rolling groove
2‧‧‧Circulation tube
21‧‧‧through hole
22‧‧‧radial holes
A‧‧‧Support components
3‧‧‧ body
31‧‧‧External thread
32‧‧‧Connecting convex
321‧‧‧ Limit slot
4‧‧‧ bearing
5‧‧‧Support
51‧‧‧Set holes
52‧‧‧Resistance
6‧‧‧ rolling elements

The first figure is a system diagram of a cooling screw of the first preferred embodiment of the present invention.
The second drawing is a combination view of the cooling screw of the first preferred embodiment of the creation.
The third figure is a cross-sectional view of the cooling screw of the first preferred embodiment of the present invention.
The fourth figure is a system diagram of the cooling screw of the second preferred embodiment of the present invention.
The fifth drawing is a combination diagram of the cooling screw of the second preferred embodiment of the present invention.
Figure 6 is a cross-sectional view of the cooling screw of the second preferred embodiment of the present invention.

Please refer to the first to third figures, which is the first preferred embodiment of the present invention. The cooling screw of the embodiment shown in the drawing comprises: a screw (1) and a circulation tube (2). And a support assembly (A), the screw (1) is elongated in a direction into an elongated structure, the extension direction is defined as an axial direction (X), and the screw (1) is provided with an axial direction (X) and a perforation (11) at both ends of the through-axis direction (X), the end of the perforation (11) is provided with an internal thread (111) for cooperating with the support assembly (A), the screw (1) The outer diameter surface is provided with a spiral rolling groove (12); a circulation pipe (2) is disposed at the perforation (11), and both ends of the circulation pipe (2) are fixed to the axial direction of the perforation (11) (X) at both ends, the circulation pipe (2) is provided with a through hole (21), and at one end is provided with a radial hole (22) connected to the through hole (21); the support assembly (A) comprises a plug a body (3), a bearing (4) and a support member (5), the plug body (3) has an external thread portion (31) at one end and a connecting protrusion at the other end (32), the external thread portion (31) is screwed to the internal thread (111) provided by the through hole (11), and the bearing (4) is sleeved on the connecting protrusion (32), the support member (5) one end has a set of holes (51), and the other end has an abutting portion (52), the sleeve hole (51) is sleeved on the outer edge of the bearing (4), so that the support member (5) Rotating relative to the connecting protrusion (32), the abutting portion (52) is placed at an end of the through hole (21), and the abutting portion (52) is a taper in the embodiment. The amount of interference between the internal thread (111) and the externally threaded portion (31) and the through hole (21) may vary due to the force of the internal thread (111) and the externally threaded portion (31). When the plug body (3) is externally threaded (31) When the internal thread (111) of the perforation (11) is screwed to each other, the support member (5) is applied with an axial direction (X) force at the end of the circulation tube (2), and the circulation tube (2) There are various types of fixing at the other end, and the end is a connection end with an external cooling device (not shown), which is mainly a through hole for supplying coolant into the circulation pipe (2). After (21) (as indicated by the arrow in the third figure), the radial hole (22) flows out into the outer edge surface of the circulation pipe (2) and the perforation (11), and then flows out of the perforation (11). ) enter the external cooling device and complete a cooling cycle.

When the screw is driven to rotate, the circulation tube is fixed by the supporting device, and the support member rotates synchronously with the circulation tube to prevent the circulation tube from being in contact with the perforation due to the rotation of the screw to generate an abnormal sound, or A problem that causes the coolant to circulate unsmoothly.

Please refer to the fourth to sixth figures, which is a second preferred embodiment of the present invention. The difference between this embodiment and the first preferred embodiment is that the support assembly (A) comprises a plug body (3). And a rolling body (6) having an external thread portion (31) at one end and a connecting protrusion (32) at the other end, the external thread portion (31) being perforated with the screw (1) ( 11) The internal thread (111) is screwed to each other, and the connecting protrusion (32) is recessed with a limiting slot (321), and the rolling body (6) is received in the limiting slot (321) The rolling body (6) is placed at the end of the through hole (21) of the circulation pipe (2), and the rolling body (6) is also rotated when the circulation pipe (2) rotates. To support the circulation pipe (2); the structure of the remaining components and the configuration between them are the same as those of the first preferred embodiment, and no further description is made 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‧‧‧ screw

11‧‧‧Perforation

111‧‧‧ internal thread

12‧‧‧ rolling groove

2‧‧‧Circulation tube

21‧‧‧through hole

22‧‧‧radial holes

A‧‧‧Support components

3‧‧‧ body

31‧‧‧External thread

32‧‧‧Connecting convex

4‧‧‧ bearing

5‧‧‧Support

51‧‧‧Set holes

52‧‧‧Resistance

Claims (3)

A cooling screw comprising: a screw extending in a direction into a strip-like structure defining the direction of elongation as an axial direction, the screw being provided with a perforation disposed along the axial direction and extending through both ends of the shaft, the screw The outer diameter surface is provided with a spiral rolling groove; a circulation pipe is disposed at the perforation, and one end of the perforation is provided with a supporting component to apply an axial force to the circulation pipe. The cooling screw according to claim 1, wherein the support assembly comprises a plug body, a bearing and a support member, the plug body has an external thread portion at one end and a connecting protrusion portion at the other end, the external thread portion The inner thread of the perforation is screwed together, and the bearing sleeve is sleeved on the connecting protrusion. The support member has a set of holes at one end and an abutting portion at the other end. The sleeve is sleeved on the bearing. The outer edge is such that the support member is rotatable relative to the connecting protrusion, and the abutting portion is placed at an end of the circulation tube. The cooling screw of claim 1, wherein the support assembly comprises a plug body and a rolling body, the plug body has an external thread portion at one end and a connecting protrusion at the other end, the external thread portion is The internal thread of the perforation is screwed to each other, and the connecting protrusion is recessed with a limiting groove. The rolling system is accommodated in the limiting groove and can be rotated and rotated inside. The rolling system is placed at the end of the circulating pipe. unit.