TWM578338U - Linear module - Google Patents

Abstract

The present invention is a linear module comprising: a base having a bottom portion and two side portions respectively disposed on two sides of the bottom portion, and the side portions each having an inner side surface and a recess recessed by the inner side surface; The two track strips are respectively disposed in the two grooves, and each has a ball guide groove; two elastic units are respectively disposed between the groove and the track bar; a slider is disposed at the reciprocating displacement a base; and a plurality of balls disposed between the ball guide and the slider. The linear module has a vibration suppression effect by providing an elastic unit between the groove and the track strip. In addition, the elastic unit may be first fixed to the rail strip during assembly, and the rail strip is positioned in the groove together with the elastic unit, thereby effectively reducing the processing cost after assembly of the rail strip.

Description

Linear module

This new type is related to linear modules, especially a linear module with vibration suppression effect.

Referring to FIG. 1, there is shown a diagram of a "linear module" of US Pat. No. 5,755,515. The linear module is mainly provided with a plurality of balls 13 between the base 11 and the slider 12 to lower the slider. 12 with respect to the friction of the base 11, at the same time between the base 11 and the ball 13, and between the slider 12 and the ball 13, a steel rail strip 14 is provided, thereby providing sufficient structural strength to ensure a linear mode The long-term operation of the group is stable, and the base 11 and the slider 12 are changed to light metal such as aluminum alloy to reduce the weight of the linear module.

However, since the track strip 14 is directly disposed on the base 11 and the slider 12, the track strip 14, the base 11, the slider 12 and the balls 13 are all made of a metal material, and the members are mutually There is no buffer structure, so the vibration generated by the reciprocating displacement of the slider 12 during the operation of the linear module is easily transmitted to the base 11 via the ball 13 and the track strip 14, so that the base 11 also vibrates and is highlighted. Defects with poor vibration.

Next, the track strip 14 is prefabricated into a prototype of the ball guide groove 141 before assembly. After the track strip 14 is assembled, the ball guide groove 141 is subjected to a process of material removal processing, grinding, etc., so that the ball 13 can be smoothly performed. The ball guide groove 141 operates. Since the track strip 14 must be firmly positioned on the base 11 and the slider 12, it is a tight fit configuration between each other. On the other hand, the track strip 14, the base 11 and the slider 12 are made of metal. The rail strip 14 is formed in an integrated structure, and the rail strip 14 is easily deformed after being inserted into the base 11 and the slider 12, so that subsequent steps of processing, grinding, and the like are more complicated and prominent. The defect of the subsequent processing cost of the track strip 14 is high.

The purpose of the present invention is to provide a linear module which mainly has a vibration suppression effect.

Another object of the present invention is to provide a linear module that mainly reduces the processing cost after assembly of the track strip.

To achieve the foregoing objective, the present invention is a linear module comprising: a base having a bottom portion and two side portions respectively disposed on two sides of the bottom portion, wherein the side portions each have an inner side surface and a concave portion from the inner side surface a groove; two track strips respectively disposed in the two grooves, each having a ball guide groove; two elastic units respectively disposed between the groove and the track strip; a slider capable of reciprocating Displaceably disposed on the base; and a plurality of balls disposed between the ball guide groove and the slider.

The utility model has the advantages that: by providing an elastic unit between the groove and the rail strip, the vibration generated by the reciprocating displacement of the slider during the operation of the linear module is finally absorbed by the elastic unit. The vibration is transmitted to the base to generate resonance, so that the linear module has a vibration suppression effect. On the other hand, the elastic unit may be fixed to the track strip at the time of assembly, and the track strip is positioned in the groove together with the elastic unit, and the track strip and the groove are lowered by the arrangement of the elastic unit. The need for a tight fit between the dimensions makes the track strip easier to assemble in the groove to avoid substantial deformation of the track strip after assembly, thereby reducing the processing cost of the track strip assembly.

Preferably, the two elastic units are respectively fixed on the two track strips. Thereby, the assembly of the track strip can be more conveniently facilitated, and the processing cost after assembly of the track strip is more effectively reduced.

Preferably, the two grooves have a groove bottom surface and a two groove wall surface, and the track strips each have a first track surface corresponding to the bottom surface of the groove and two second track surfaces respectively corresponding to the groove wall surface. Each of the elastic units has a first elastic portion respectively disposed between the groove wall surface and the second track surface, and a second elastic portion disposed between the groove bottom surface and the first track surface. Thereby, the molding and assembly of the rail strip is simplified. More preferably, the distance between the free end of the first elastic portion and the second elastic portion of each of the elastic units is smaller than the distance between the first track surface of each of the track strips and the free end of the second track surface. Thereby, the structural design of the elastic unit can effectively isolate the rail strip from the base without losing the stability of the combination.

Preferably, the two grooves have a groove bottom surface and two groove wall surfaces, and the track strips each have a first track surface corresponding to the bottom surface of the groove and two second track surfaces respectively corresponding to the groove wall surface. The elastic units each include two first elastic sheets, and the first elastic sheets are respectively disposed between the two groove wall surfaces and the second rail surfaces. Thereby, the structure of the elastic unit is simplified, and the molding is easy and the manufacturing cost is reduced. More preferably, the two elastic units each further comprise a second elastic sheet body, and the second elastic sheet body is disposed between the bottom surface of the groove and the first track surface. Thereby, in addition to making the elastic unit easy to shape and reducing the manufacturing cost, the rail strip can be effectively insulated from the base without losing the stability of the combination.

Preferably, the two grooves have a groove bottom surface and a two groove wall surface, and the track strips each have a first track surface corresponding to the bottom surface of the groove and two second track surfaces respectively corresponding to the groove wall surface. Each of the elastic units includes a plurality of first elastic round strips and a plurality of second elastic round strips, and the plurality of first elastic round strips and the plurality of second elastic round strips are respectively disposed on the wall surface of the groove and the second Between the second track surfaces. Thereby, the structure of the elastic unit is simplified, and the molding is easy and the manufacturing cost is reduced. More preferably, the two elastic units each further comprise a plurality of third elastic circular strips, and the plurality of third circular strips are disposed between the bottom surface of the groove and the first track surface. Thereby, in addition to making the elastic unit easy to shape and reducing the manufacturing cost, the rail strip can be effectively insulated from the base without losing the stability of the combination.

Referring to FIG. 2 to FIG. 4 , a linear module according to the first embodiment of the present invention is mainly composed of a base 20 , two track strips 30 , two elastic units 40 , a slider 50 , and a plurality of balls 60 . composition. among them:

The base 20 is formed along a displacement direction X and has a bottom portion 21 formed along the displacement direction X and two side portions 22 formed along the displacement direction X and respectively disposed at two sides of the bottom portion 21, so that the base 20 is The side portions 22 are generally U-shaped; the side portions 22 each have an inner side surface 221 and a recess 222 recessed by the inner side surface 221, wherein the inner side surfaces 221 face each other, and the recesses 222 also face each other. In this embodiment, the base 20 is made of a metal material, and of course, it can also be made of a metal material that is lighter than steel. The groove 222 has a groove bottom surface 2221 and two groove wall surfaces 2222 connected to the two sides of the groove bottom surface 2221. The groove 222 has a U-shaped cross section, but is not limited thereto. Curved, V-shaped and other shapes.

The track strips 30 are respectively disposed in the two grooves 222 and each have a ball guide groove 31. In this embodiment, each of the track strips 30 further has a first track surface 32 corresponding to the groove bottom surface 2221 and two second track surfaces 33 corresponding to the groove wall surface 2222. In addition, each of the track strips 30 is made of steel.

The elastic unit 40 is respectively disposed between the groove 222 and the track strip 30. In this embodiment, the elastic units 40 are respectively disposed on the two groove wall surfaces 2222 and the second track surface. a first elastic portion 41 between the 33, and a second elastic portion 42 disposed between the bottom surface 2221 of the groove and the first track surface 32, wherein the first elastic portions 41 are respectively disposed on the second elastic portion The sides of the portion 42 are such that each of the elastic units 40 has a U-shaped cross section. It should be noted that the track strip 30 is assembled in front of the groove 222, and the elastic unit 40 is fixed on the outer surface of the track strip 30 before being assembled in the groove 222. At the same time, each of the elastic units 40 is made of a single material such as a soft material such as rubber or resin. Of course, it can also be combined with a multi-layer composite material.

The slider 50 is provided on the base 20 so as to be reciprocally displaceable in the displacement direction X by a screw 70. Since the structure and the reciprocating displacement mode of the slider 50 are the same as those of the prior art, they will not be described again.

The plurality of balls 60 are disposed between the ball guide groove 31 and the slider 50 to smoothly reciprocate the slider 50.

The above description is the configuration description of each main component of the first embodiment of the creation. As for the mode of operation and efficacy of this creation, the following description is given.

First, the linear module has a vibration suppression effect. During the operation of the linear module, when the vibration generated by the reciprocating displacement of the slider 50 is transmitted to the base 20 by the ball 60 and the track strip 30, the groove 222 and the track of the base 20 are created. The elastic unit 40 is disposed between the strips 30, so that the vibration generated by the slider 50 is finally absorbed by the elastic unit 40, so that the creation reduces the vibration transmitted to the base 20 to cause resonance, and the linear mode is generated. The group has a vibration suppression effect.

Second, the processing cost of the track strip 30 after assembly is reduced. Since the present invention is mainly composed of the base 20, the rail strip 30, the elastic unit 40, the slider 50, and the ball 60, when the rail strip 30 is assembled in the recess 222 of the base 20, the elastic unit 40 can be first used. The rail strip 30 is fixed on the outer surface of the rail strip 30, and the rail strip 30 is positioned in the recess 222 together with the elastic unit 40 by the fixture. The rail unit 30 and the recess 222 are lowered by the arrangement of the elastic unit 40. The need for a tight fit dimension, that is, having a proper gap between the track strip 30 and the recess 222, makes the rail strip 30 easier to assemble in the recess 222 to avoid assembly of the track strip 30. The deformation range is too large, and the purpose of reducing the processing cost after assembly of the rail strip 30 is achieved.

Third, improve shipping efficiency. Since the present invention is assembled, the formed elastic unit 40 can be fixed to the outer surface of the rail strip 30 by adhesive bonding, and the rail strip 30 and the elastic unit 40 are positioned in the groove along with the fixture. 222, the deformation and compression of the elastic unit 40 during assembly are fixed, so that the rail strip 30 can be firmly fixed to the recess 222, so the rail strip 30 is not required during assembly. Waiting for the hardening time of the elastic unit 40, thereby saving the time for on-site assembly waiting, and effectively improving the shipping efficiency.

It should be noted that the grooves 222 each have a groove bottom surface 2221 and two groove wall surfaces 2222. The track strips 30 each have a first track surface 32 corresponding to the groove bottom surface 2221 and corresponding to the groove wall surface 2222. And the second elastic portion 40 has a first elastic portion 41 respectively disposed between the two groove wall surfaces 2222 and the second track surface 33, and is disposed on the groove bottom surface 2221 and the A second resilient portion 42 between the first track surfaces 32. Thereby, the molding and assembly of the rail strip 30 is simplified. In addition, the distance H1 between the free end of the first elastic portion 41 and the second elastic portion 42 of each of the elastic units 40 is smaller than the free ends of the first track surface 32 and the second track surface 33 of each of the track strips 30. The distance between them. Thereby, the structural design of the elastic unit 40 can effectively isolate the rail strip 30 from the base 20 without losing the stability of the combination.

Referring to FIG. 5, a second embodiment of the present invention provides a linear module, which is different from the first embodiment in that:

The groove 222 has a groove bottom surface 2221 and a two groove wall surface 2222. The track strips 30 each have a first track surface 32 corresponding to the groove bottom surface 2221 and two second track surfaces corresponding to the groove wall surface 2222 respectively. 33. The elastic unit 40A includes two first elastic sheets 41A, and the first elastic sheets 41A are respectively disposed between the two groove wall surfaces 2222 and the second track surfaces 33. Therefore, since the elastic unit 40A is composed of the two first elastic sheets 41A, the structure of the elastic unit 40A is simple, and it is easy to form and reduce the manufacturing cost, and the first elastic sheet 41A in the form of a sheet can be easily obtained. The ground is pre-adhered to the two second track surfaces 33 of the track strip 30 to improve the ease of assembly. Meanwhile, in FIG. 5, the first elastic sheet body 41A can absorb the generation of the longitudinal vibration, and the linear module can have the vibration damping effect with a minimum of components, contributing to the reduction of the material cost.

Referring to FIG. 6, a third embodiment of the present invention provides a linear module, which is different from the second embodiment in that:

The elastic units 40A further include a second elastic piece 42A disposed between the groove bottom surface 2221 and the first track surface 32. Thereby, in addition to making the elastic unit 40A easy to shape and reducing the manufacturing cost, the rail strip 30 can be effectively insulated from the base 20 without losing the stability of the combination. Meanwhile, in FIG. 6, the first elastic sheet body 41A can absorb the generation of the longitudinal vibration, and the second elastic sheet body 42A can absorb the lateral vibration, thereby ensuring that the linear module has the vibration suppression in all directions. effect.

Referring to FIG. 7, a fourth embodiment of the present invention provides a linear module, which is different from the first embodiment in that:

The groove 222 has a groove bottom surface 2221 and a two groove wall surface 2222. The track strips 30 each have a first track surface 32 corresponding to the groove bottom surface 2221 and two second track surfaces corresponding to the groove wall surface 2222 respectively. 33, the elastic unit 40B includes three first elastic round bodies 41B and three second elastic round bodies 42B, and each of the first elastic round bodies 41B and each of the second elastic round bodies 42B are respectively assembled. Between the groove wall surface 2222 and the second track surface 33. Thereby, the structure of the elastic unit 40B is simplified, and it is easy to form and reduce the manufacturing cost. Meanwhile, in FIG. 7, each of the first and second elastic circular strip bodies 41B, 42B can absorb the generation of longitudinal vibration, and the linear module can have a vibration suppression effect with a minimum of components, contributing to the material. The cost is reduced.

Referring to FIG. 8, a fifth embodiment of the present invention provides a linear module, which is different from the fourth embodiment in that:

The elastic units 40B further include five third elastic round strips 43B, and each of the third round strips 43B is disposed between the bottom surface 2221 of the groove and the first track surface 32. Thereby, in addition to making the elastic unit 40B easy to shape and reducing the manufacturing cost, the rail strip 30 can be effectively insulated from the base 20 without losing the stability of the combination. Meanwhile, in FIG. 8, each of the first and second elastic circular strip bodies 41B, 42B can absorb the generation of longitudinal vibration, and each of the third elastic round strip bodies 43B can absorb the generation of the lateral vibration to ensure the linear mode. The group has a vibration suppression effect in all directions.

[Prior technology]  11‧‧‧Base  12‧‧‧ Slider  13‧‧‧ balls  14‧‧‧ Track strips  141‧‧‧Ball guides  [This creation]  20‧‧‧Base  X‧‧‧ Displacement direction  21‧‧‧ bottom  22‧‧‧ side  221‧‧‧ inside  222‧‧‧ Groove  2221‧‧‧Slot bottom  2222‧‧‧ slot wall  30‧‧‧ Track strips  31‧‧‧Ball guides  32‧‧‧First track surface  33‧‧‧Second track surface  40, 40A, 40B‧‧‧ elastic unit  41‧‧‧First elastic part  42‧‧‧Second elastic part  41A‧‧‧First elastic sheet  42A‧‧‧Second elastic sheet  41B‧‧‧First elastic round bar  42B‧‧‧Second elastic round bar  43B‧‧‧ Third elastic round bar  50‧‧‧ Slider  60‧‧‧ balls  70‧‧‧ screw  H1, H2‧‧‧ distance  

Figure 1 is a diagram of one of the "linear modules" of U.S. Patent No. 5,755,515;  Figure 2 is a perspective sectional view showing the combination of the first embodiment of the present invention;  Figure 3 is a cross-sectional view of line 3-3 of Figure 2;  Figure 4 is a partial enlarged view of Figure 3;  Figure 5 is a partial enlarged view of the second embodiment of the present creation;  Figure 6 is a partial enlarged view of a third embodiment of the present creation;  Figure 7 is a partial enlarged view of a fourth embodiment of the present creation;  Figure 8 is a partially enlarged view of a fifth embodiment of the present creation.  

Claims (7)

A linear module that includes:  a base having a bottom portion and two side portions respectively disposed on both sides of the bottom portion, and the side portions each have an inner side surface and a recess recessed by the inner side surface;  Two track strips respectively disposed in the two grooves and each having a ball guide groove;  Two elastic units respectively disposed between the groove and the track strip;  a slider that is reciprocally displaceably disposed on the base;  A plurality of balls are disposed between the ball guide groove and the slider.   The linear module of claim 1, wherein the two grooves have a groove bottom surface and a two groove wall surface, and the track strips each have a first track surface corresponding to the bottom surface of the groove and corresponding to the groove wall surface respectively. a second track surface, wherein the elastic units each have a first elastic portion respectively disposed between the groove wall surface and the second track surface, and are disposed between the groove bottom surface and the first track surface. The second elastic portion. The linear module of claim 2, wherein a distance between the free end of the first elastic portion and the second elastic portion of each of the elastic units is less than a distance between the first track surface and the second track surface of each of the track strips The distance between the ends. The linear module of claim 1, wherein the two grooves have a groove bottom surface and a two groove wall surface, and the track strips each have a first track surface corresponding to the bottom surface of the groove and corresponding to the groove wall surface respectively. Two second track surfaces, wherein the elastic units each comprise two first elastic sheets, and the first elastic sheets are respectively disposed between the two groove wall surfaces and the second track surfaces. The linear module of claim 4, wherein each of the elastic units further comprises a second elastic sheet body, the second elastic sheet body being disposed between the bottom surface of the groove and the first track surface. The linear module of claim 1, wherein the two grooves have a groove bottom surface and a two groove wall surface, and the track strips each have a first track surface corresponding to the bottom surface of the groove and corresponding to the groove wall surface respectively. The second track surface, the elastic unit each includes a plurality of first elastic round strips and a plurality of second elastic round strips, and the plurality of first elastic round strips and the plurality of second elastic round strips are respectively set in Two between the groove wall surface and the second second track surface. The linear module of claim 6, wherein the two elastic units each further comprise a plurality of third elastic circular strips, and the plurality of third circular strips are disposed between the bottom surface of the groove and the first track surface.