TW201425754A - Radial load reinforced roller type linear guideway - Google Patents

Abstract

A radial load reinforced roller type linear guideway, which can improve the radial pressing rigidity, radial pulling rigidity, anti-impactive capacity and life of the guideway without increasing the production cost only by changing an upper rolling surface angle and a lower rolling surface angle, so as to improve the displacement precision. Moreover, such a guideway is applicable to high precision devices.

Description

Radial load reinforced roller linear slide

The present invention provides a radial load reinforced roller type linear slide that is associated with a linear actuator.

The linear slide rail is a high-precision linear transmission device, and mainly includes a slider which is slidably disposed on a slide rail, and a plurality of rolling members are arranged between the slide rail and the slider to bear the load and assist the sliding The rolling element can be divided into a ball type and a roller type, and the load capacity of the roller type linear slide rail is superior to that of the ball type, so the roller type linear slide rail is often used for the heavy load and high precision demand. For the use of equipment, in the field of engineering applications, the demand for radial (down-pressing and pull-up) load capacity is usually much higher than the rest, such as heavy-duty processing machines, gantry-type processing machines, heavy-duty handling equipment and other industrial equipment. Therefore, designing a linear slide with high radial load capacity is a necessary trend; while a general radial (down-press, pull-up) load-reinforced roller linear slide is shown in Figure 1, the linear slide 10 A plurality of rollers 13 are disposed between the side surface 111 of the slide rail 11 and the top surface 112 and the slider 12, and the displacement of the roller 13 is mainly caused by the position and the number of the rollers 13 to increase the overall radial (downward, pull-up) load. Ability; however, due to slider 12 and slip The rails 11 must be provided with rolling grooves on the top surface 112 and the side surface 111 of the roller 13. The rolling grooves of the top surface 112 and the side surface 111 cannot be processed by the same set of tools, which will increase the mechanism complexity of the processing machine; Increase manufacturing Another radial (lower, pull up) load-enhanced roller linear slide 20 is shown in FIG. 2, which is similar to the side 211 and the top surface 212 of the slide rail 21 The roller 23 is disposed between the sliders 22, and of course, the same missing as the above-mentioned linear slide 20 is generated. In view of this, the inventors have studied and studied more deeply, and after a lot of research and development, finally invented a path. Load-enhanced roller type linear slides.

The invention provides a radial load-reinforced roller type linear slide rail, and the main purpose thereof is to solve the problem that the conventional linear slide rail increases the production cost by increasing the radial pressing rigidity and the radial pulling rigidity.

To achieve the foregoing objective, the present invention provides a radial load-reinforced roller type linear slide rail comprising: a slide rail having an opposite top surface and a bottom surface, and defining a level parallel to the top surface and the bottom surface The guide rails have a slide rail slot on each side of the slide rail, and each of the slide rail slides has a slide rail upper raceway surface and a slide rail lower raceway surface, and the upper raceway upper raceway surface defines an upper rail The raceway surface normal, the upper raceway normal and the horizontal reference have an upper raceway surface angle; the vertical raceway lower raceway surface defines a raceway face normal, the lower raceway face normal and horizontal The reference zone has an angle of the lower raceway surface; and the angle of the upper raceway surface is 度49 degrees at 46 degrees; and the angle of the lower raceway surface is 度56 degrees at 46 degrees; a slider can slide with a slider chute Inserting the slide rail, the opposite side of the slider chute of the slider is respectively formed with a slider upper raceway surface and a slider lower raceway surface, respectively The upper raceway surface of the slider is parallel to the upper raceway surface of the slide rail and constitutes an upper load path, and the lower raceway surface of each slider is parallel to the lower raceway surface of the slide rail and constitutes a load path, and the slider is on the slider Further, a first flow channel and a second flow channel are disposed; the two end caps are disposed at two ends of the slider and are respectively provided with two first return channels and two second return channels, and the first return channel of the end caps is The first flow path of the slider and the upper load path are in communication; and the second return flow path of the end cover is in communication with the second flow path and the lower load path; and the plurality of rollers are respectively accommodated in the upper load a path, the lower load path, the first return flow, and the second return flow.

By changing the angle between the upper raceway surface and the angle of the lower raceway surface, the radial down-rigidity, the radial pull-up rigidity, the impact resistance and the service life can be surely increased without increasing the manufacturing cost, and can be directly improved. Displacement accuracy, and can be used in conjunction with devices with high precision requirements.

In order to enable your review committee to have a better understanding and understanding of the purpose, features and effects of the present invention, please refer to the following [detailed description of the drawings] as follows: The radial load-reinforced roller type linear slide of the present invention A preferred embodiment, as shown in Figures 3 through 10, includes a slide rail 30 extending along an axial direction X and having an opposite top surface 32 and a bottom surface 33, the axis X defining a radial direction A horizontal reference P is defined in parallel with the top surface 32 and the bottom surface 33. The two sides of the sliding rail 30 define a sliding rail sliding slot 31 along the axial direction X. Each of the sliding rail sliding slots 31 has a sliding rail. Upper raceway surface 311 and a slide rail The lower raceway surface 312, the vertical rail upper raceway surface 311 defines an upper raceway surface normal N1, the upper raceway surface normal N1 and the horizontal reference P have an upper raceway surface angle θ; The lower track surface 312 defines a raceway surface normal N2, the lower raceway surface normal N2 and the horizontal reference P have an angle of the lower raceway surface; and the angle of the upper raceway surface is 46 degrees; And the angle of the lower raceway surface is ≦56 degrees; wherein, in the embodiment, the upper raceway surface angle θ is optimally 49 degrees; and the lower raceway surface angle ψ is preferably 56 degrees; a slider 40, a slider chute 41 is opened along the axial direction X, and the slide rail 30 is slidably worn by the slider chute 41, and the opposite sides of the slider chute 41 of the slider 40 are respectively formed into a slippery The block upper raceway surface 411 and the slider lower raceway surface 412, each slider upper raceway surface 411 and the slide rail upper raceway surface 311 are parallel to each other and constitute an upper load path L1, and each slider lower raceway surface The 412 is parallel to the slide lower raceway surface 312 and constitutes a lower load path L2, and the slider 40 is further provided with a first flow passage 42 and a second flow passage 43. In addition, the slider 40 is adjacent to each other. Block upper raceway surface 411 And a stop portion 44 is further protruded from each of the slider lower raceway surfaces 412; two end caps 50 are disposed at two ends of the slider 40 and are respectively provided with two first return passages 51 and two second return flows. The second return passage 51 of the end cover 50 communicates with the first flow passage 42 of the slider and the upper load path L1; and the second return passage 52 of the end cover 50 and the second flow passage 43 and the lower load path L2 are connected; and the plurality of rollers 60 are respectively accommodated in the upper load path L1, the lower load path L2, the first return path 51, and the second return path 52, and each roller 60 is abutted against each stop portion 44 to limit the position.

The above is the structural configuration and features of the radial load-reinforced roller type linear slide rail of the present invention, and in use, the slider 40 can be linearly displaced on the slide rail 30 through the cyclic rotation of each of the rollers 60. Please refer to the data shown in Figures 6 to 7 for the implementation of the present invention, and the radial Y stress condition as shown in Fig. 4 is subjected to the radial pull-up load F1 or the radial downward pressure applied in the radial direction Y. Load F2, Fig. 6 is a data line diagram of the tensile deformation amount δ 1 when the same radial pull-up load F1 is applied to the slider 40 having different upper raceway surface angles θ, from Fig. 6 It can be seen that when the upper raceway surface angle θ is increased, the slider 40 generates a tensile deformation amount δ 1 which can be continuously lowered; and the seventh diagram shows that the same radial pull-up load F1 is applied to have different upper raceway surfaces. When the slider 40 is at an angle θ, the data of the maximum stress value of the slider 40 is changed. As can be seen from FIG. 7, when the angle θ of the upper raceway surface increases, the maximum stress value of the slider 40 is micro. The tendency of the web to fall; as can be seen from the above, the present invention can actually reduce the slip by increasing the angle θ of the upper raceway surface. The amount of deformation of 40, of course, also means that the radial tensile rigidity, impact resistance and service life of the present invention are indeed improved. Next, please refer to Figures 8 to 9 for the data of the implementation of the present invention, and Figure 8 is When the same radial downward pressing load F2 is applied to the slider 40 having different lower raceway surface angles, the slider 40 generates a data line diagram of the change of the downward pressure deformation amount δ 2 , which can be seen from FIG. 8 When the angle ψ of the raceway surface is increased, the amount of downward deformation δ 2 of the slider 40 can be continuously reduced; and the ninth diagram is shown by the same radial pull-down load F2 applied to the slip with different lower raceway faces. At block 40, the data of the change of the maximum stress value of the slider 40, as shown in Fig. 9, it can be seen that when the angle ψ of the lower raceway surface increases, the maximum stress value of the slider 40 tends to decrease; It can be seen that The present invention can reduce the amount of depression of the slider 40 by increasing the angle ψ of the lower raceway surface, and of course, it can improve the radial compression rigidity, impact resistance and service life of the present invention; Considering the lateral force rigidity of the present invention, as shown in FIG. 10, when the upper raceway surface angle θ is 49 degrees and the lower raceway surface angle ψ is 56 degrees, the present invention is subjected to the lateral load F3. The lateral deformation amount δ 3 of the slider 40 can maintain the same rigidity as the steel ball type linear slide rail. Thus, the angular arrangement of the upper raceway surface angle θ and the lower raceway surface angle ψ of the present invention can surely improve the present invention. The radial pressing rigidity, the radial pull-up rigidity, the impact resistance and the service life, and more directly, can also improve the displacement accuracy, and can be more suitable for the device with high precision requirements.

In summary, the present invention can improve the overall radial downward pressing rigidity, the radial tensile rigidity, the impact resistance and the service life by changing the angle θ of the upper raceway surface and the angle ψ of the lower raceway surface, more directly. The displacement accuracy can be surely improved, and only one slide rail 31 is provided on both sides of the slide rail 30, which can be formed by a set of tools, and the two sets of tools are not separately processed, so the processing machine is not added. The complexity and manufacturing cost of the station can reduce production processes and production costs and improve economic efficiency.

"Knowledge Technology"

10‧‧‧Linear slides

11‧‧‧Slide rails

111‧‧‧ side

112‧‧‧ top surface

12‧‧‧ Slider

13‧‧‧ Roller

20‧‧‧Linear slides

21‧‧‧Slide rails

211‧‧‧ side

212‧‧‧ top surface

22‧‧‧ Slider

23‧‧‧roller

"this invention"

30‧‧‧Slide rails

31‧‧‧Sliding rail chute

311‧‧‧Slide rail upper raceway

312‧‧‧Sliding track lower raceway

32‧‧‧ top surface

33‧‧‧ bottom

40‧‧‧ Slider

41‧‧‧ slider chute

411‧‧‧Slider upper raceway

412‧‧‧ Slider lower raceway

42‧‧‧First runner

43‧‧‧Second runner

44‧‧‧stop

50‧‧‧End cover

51‧‧‧First return channel

52‧‧‧Second return channel

60‧‧‧roller

X‧‧‧ axial

P‧‧‧ horizontal benchmark

N1‧‧‧Upper raceway normal

N2‧‧‧ lower raceway normal

Θ‧‧‧ upper raceway angle

ψ‧‧‧The angle of the lower raceway

L1‧‧‧Upload path

L2‧‧‧Load path

F1‧‧‧ Pull-up load

F2‧‧‧down load

F3‧‧‧ lateral load

δ 1‧‧‧Uplift deformation

δ 2‧‧‧Deformation deformation

δ 3‧‧‧ lateral deformation

Figure 1 is a schematic view of a conventional radial (down-press, pull-up) load-reinforced roller linear slide.

Figure 2 is a schematic view of another conventional radial (lower, pull up) load-reinforced roller linear slide.

Fig. 3 is a partial perspective cross-sectional view showing a radial load-reinforced roller type linear slide of the present invention.

Fig. 4 is a cross-sectional view showing a radial load-reinforced roller type linear slide of the present invention.

Fig. 5 is a schematic view showing the structure of an end cover of a radial load-reinforced roller type linear slide according to the present invention.

Fig. 6 is a data line diagram showing the tensile deformation amount of the slider of the radial load-reinforced roller type linear slide rail at different angles of the upper raceway surface.

Fig. 7 is a data line diagram showing the stress value change of the slider of the radial load-reinforced roller type linear slide rail at different angles of the upper raceway surface.

Fig. 8 is a data line diagram showing the pressure deformation amount of the slider of the radial load-reinforced roller type linear slide rail under the angle of the different lower raceway surfaces.

Fig. 9 is a data line diagram showing the change of the stress value generated by the slider of the radial load-reinforced roller type linear slide rail at different angles of the lower raceway surface.

Fig. 10 is a comparison diagram of the specific angle of the radial load-enhanced roller type linear slide rail and the lateral deformation amount of the ball type linear slide rail according to the present invention.

30‧‧‧Slide rails

31‧‧‧Sliding rail chute

311‧‧‧Slide rail upper raceway

312‧‧‧Sliding track lower raceway

32‧‧‧ top surface

33‧‧‧ bottom

40‧‧‧ Slider

41‧‧‧ slider chute

411‧‧‧Slider upper raceway

412‧‧‧ Slider lower raceway

42‧‧‧First runner

43‧‧‧Second runner

44‧‧‧stop

60‧‧‧roller

P‧‧‧ horizontal benchmark

N1‧‧‧Upper raceway normal

N2‧‧‧ lower raceway normal

Θ‧‧‧ upper raceway angle

ψ‧‧‧The angle of the lower raceway

L1‧‧‧Upload path

L2‧‧‧Load path

F1‧‧‧ Pull-up load

F2‧‧‧down load

F3‧‧‧ lateral load

δ 1‧‧‧Uplift deformation

δ 2‧‧‧Deformation deformation

δ 3‧‧‧ lateral deformation

Y‧‧‧ radial

Claims (4)

A radial load-reinforced roller type linear slide rail comprises: a slide rail having a top surface and a bottom surface, and a horizontal reference is defined parallel to the top surface and the bottom surface, and both sides of the slide rail A slide rail slot is defined, each of the slide rails has a slide upper raceway surface and a slide rail lower raceway surface, and the vertical raceway upper raceway defines an upper raceway surface normal. The raceway surface normal line and the horizontal reference have an upper raceway surface angle; the vertical raceway lower raceway surface defines a raceway surface normal, and the lower raceway surface normal and the horizontal reference have an angle of the lower raceway surface And 46 degrees ≦ the upper raceway surface angle ≦ 49 degrees; and 46 degrees ≦ the lower raceway surface angle ≦ 56 degrees; a slider, a slider slide can be slipped through the slide rail, the slider A slider upper raceway surface and a slider lower raceway surface are respectively formed on opposite sides of the slider sliding groove of the slider, and the upper raceway surface of each slider is parallel with the upper raceway surface of the slide rail and constitutes an upper load a path, and the lower raceway surface of each slider is parallel to the lower raceway surface of the slide rail and constitutes a load path, and a first flow passage is further disposed on the slider a second flow path; two end caps are disposed at two ends of the slider and respectively provided two first return channels and two second return channels, and the first return flow of the end cover and the first flow path of the slider And the upper load path is connected; and the second return flow of the end cover is in communication with the second flow path and the lower load path; and the plurality of rollers are respectively accommodated in the upper load path, the lower load path, The first return channel and the second return channel. The radial load-reinforced roller type linear slide rail according to claim 1, wherein the slider is on the adjacent raceway surface and each slider lower raceway. A stop portion is further protruded from the surface, and each roller abuts against the stop position of each stop portion. The radial load-reinforced roller type linear slide rail according to claim 1, wherein the upper raceway surface has an angle of 49 degrees. The radial load-reinforced roller type linear slide rail according to claim 1, wherein the lower raceway surface has an angle of 56 degrees.