Orientation rail device

Positioning rail device

The present invention relates to a positioning rail device, and more particularly to a positioning rail device that utilizes surface contact sliding.

Please refer to FIG. 1 , which is a cross-sectional view showing a conventional linear slide device that uses a ball to slide. The rail device uses a U-shaped guide outer rail 600 made of steel material, and a groove 650 is provided on the inner walls of both sides of the U-shaped guide outer rail 600. The carrying platform 800 is slidably disposed on the guiding outer rail 600 with balls 700 disposed therebetween. The ball 700 is received in the groove 650 to slide the carrier platform 800 along the guide 650 of the guide outer rail 600 via the guide of the ball 700.

Since the ball 700 slides in a point contact manner, it has a lower coefficient of friction (about 0.01). In addition, the ball 700 performs an infinite rolling cycle between the carrier platform 800 and the groove 650, so that the bearing platform 800 can The trench 650 is used for high precision and reversible linear motion. Therefore, most of the conventional linear slide rail devices use a ball contact type in a point contact manner to perform contact sliding.

However, due to the complicated procedures for manufacturing and assembling the balls, the processing cost is relatively high. In addition, the molding dimensions of the balls are designed according to the weight of the load. Therefore, the volume occupied by the balls applied to the large-scale machine is relatively increased, not only It is not possible to effectively reduce the volume occupied by the machine, and it also increases the material cost of making the ball.

Even though the positioning of the slide rail device by means of the ball has high precision, it is not necessary to use such a precise and expensive linear slide rail system in various application fields, such as simple article transmission.

Therefore, another set of positioning rail device with lower processing cost and material cost is developed, which has a lightweight structure and a small occupied volume under the same load specification as the existing linear rail device using the ball. The necessity of its development.

Therefore, the purpose of the novel is to provide a positioning slide device, which utilizes a friction-resistant material that is simple in processing and low in cost to make a contact moving interface, thereby achieving a large bearing capacity and a cost reduction effect.

According to the above object of the present invention, a positioning rail device is proposed, comprising a guide rail, a slider, an actuating device and a wear-resistant device.

The guide rail has a body, and the body is provided with two corresponding sliding grooves on the inner walls of the two sides.

The slider is coupled to and driven by the actuator to slide over the rail whereby the slider is slidably disposed on the rail.

The slider has two protrusions respectively fitted to the two corresponding sliding grooves. The sliders are slidably disposed on the rails, and the bumps are slidably disposed in the two sliding slots to form a surface contact between the corresponding bumps and the sliding slots. Each of the bumps has a first side and a second side, and the first side and the second side form an angle less than 180 degrees. A plurality of oil filling holes are arranged on the outer side of the slider, and an oil passage is arranged in the slider, and the oil passage is connected with the oil injection hole.

The wear-resistant device comprises a plurality of wear-resistant pieces, and is disposed on the first surface and the second surface of the bump to reduce wear between the sliding block and the sliding groove, and the wear-resistant piece can be Turcite B wear-resistant piece, SKC-3 resistant Grinding sheet, PTFE wear sheet or ceramic wear sheet. The oil-resistant groove is formed by the processing on the wear-resistant piece, and a plurality of oil-discharging holes are formed in the oil groove. The oil outlet is connected to the oil passage. By the oil filling hole and the oil passage provided on the slider, the lubricating oil enters the oil passage from the oil filling hole and flows out through the oil outlet hole on the oil groove. The oil passage is used for diversion and the oil outlet hole on the oil groove flows out to achieve lubrication between the wear-resistant device and the chute.

Therefore, compared with the conventional slide rail device which uses the ball for contact sliding, the positioning rail device of the present invention has the following effects: 1. The positioning rail device of the present invention is lubricated by the friction plate provided on the bump. The oil discharge of the device is designed to reduce the frictional block between the friction plate and the slide rail.

2. The positioning rail device of the present invention is changed from the existing ball type point contact moving device to the surface contact movement, thereby improving the bearing capacity.

3. The positioning rail device of the present invention can reduce the weight of the structure and reduce the occupied volume under the same load specification according to the angle of the bump designed by the bearing force.

Please refer to FIG. 2, which is a perspective exploded view of the positioning rail device of the present invention. The positioning slide device of the present invention comprises a guide rail 100, a slider 200, an actuating device and a wear-resistant device. In the present embodiment, the actuating device is a screw 120 that includes a plurality of wear plates 300.

The guide rail 100 has a body and a support plate 400. The body has a U-shaped cross section, and a support plate 400 is disposed at two ends thereof, and two corresponding sliding grooves 115 are disposed on the inner walls 110 of the two sides.

The slider 200 is bored by the screw 120 and is provided with a thread that meshes with the screw 120. The screw 120 can be a ball screw, and its main function is to convert the rotational motion of the screw 120 into the linear motion of the slider 200. Thereby, the slider 200 is slidably disposed on the guide rail 100.

Please refer to FIG. 3 , which is a cross-sectional view of the slider in the positioning slide device of the present invention. The slider 200 has two protrusions 210 slidably fitted to the two corresponding sliding grooves 115 to form a contact therebetween. Each of the bumps 210 has a first surface 211 and a second surface 216, and the first surface 211 and the second surface 216 form an angle A. The angle A is less than 180 degrees, and in this embodiment, it is represented only by a schematic angle, and the optimum angle is about 120 degrees. A plurality of oil filling holes 225 are disposed on the outer side of the slider 200, and the lubricating oil passage 250 is disposed in the sliding block 200, and the oil lubrication passage 250 communicates with the oil filling hole 225.

Please refer to Figure 2 and Figure 3. The wear preventing device is disposed on the first surface 211 and the second surface 216 of the bump 210. In the embodiment, the first surface 211 and the second surface 216 of the bump 210 are provided with a wear-resistant sheet 300 for reducing wear between the slider 200 and the sliding groove 115. The wear-resistant sheet 300 may be a sheet made of Teflon or polytetrafluoroethylene (PTFE), mixed with 60% bronze (such as Turcite B wear-resistant sheet), and epoxy resin (Exposy). a sheet-like body (such as SKC-3 wear-resistant sheet) in which a main body is mixed with a plurality of fillers, a sheet-like body (such as a polytetrafluoroethylene wear-resistant sheet) mainly composed of a fluorine-based resin, or a main material is trioxide A sheet of aluminum, such as a ceramic wear sheet.

An oil groove 310 is disposed on the wear plate 300, and a plurality of oil holes 315 are defined in the oil groove 310. The oil hole 225 on the outer side 220 of the slider 200 communicates with the oil outlet hole 315 on the oil groove 310 through the oil passage 250. Therefore, the lubricating oil can enter the oil passage 250 from the oil injection hole 225 on the opposite outer side faces 220 of the slider 200, and then be diverted from the oil passage 250 and then flow out from the oil hole 315 on the oil groove 310. Lubrication between the wear plate 300 and the chute 115.

In addition, the slider 200 has a mounting surface 230 on which a plurality of mounting holes 235 are provided for assembling the loaded objects. The support plate 400 has a plurality of locking holes 410 and an opening 460. The support plate 400 is locked to the main body of the guide rail 100 by the locking hole 410, and the screw 120 is opened by the opening 460. A power source (such as a motor) is coupled to drive the screw 120 to drive the slider 200.

Please refer to FIGS. 4A-4E, which are schematic diagrams showing different embodiments of various oil grooves. The oil groove 310 is shaped to include a plurality of continuous openings with oppositely intersecting meandering grooves (as shown in FIG. 4A); and may include a plurality of Z-shaped grooves continuously connected in series (as shown in FIG. 4B). ; may comprise a plurality of consecutive S-shaped grooves of continuous staggered communication (as shown in FIG. 4C); may include a plurality of circular grooves that are connected in a straight line and arranged in a straight line (as shown in FIG. 4D); or may include A plurality of square grooves that are connected in a straight line and arranged in a straight line (as shown in Fig. 4E). The shape design of the oil groove 310 disclosed above is merely illustrative and is not intended to limit the present invention.

The positioning rail device of the present invention has the following functions and advantages: 1. The positioning rail device of the present invention is matched with the lubricating device (the oil groove 310 and the oil outlet hole 315) by the friction plate 300 disposed on the bump 210. The oil is designed to reduce the frictional block between the friction plate 300 and the slide rail 115.

2. The positioning rail device of the present invention is changed from the existing ball type point contact moving device to the surface contact movement, thereby improving the bearing capacity.

3. The positioning rail device of the present invention can reduce the weight of the structure and reduce the occupied volume under the same load specification according to the angle A of the bump designed by the bearing force.

Although the present invention has been disclosed in an embodiment of the present invention, it is not intended to limit the present invention. Any one skilled in the art can make various changes and retouchings without departing from the spirit and scope of the present invention. The scope of protection is subject to the definition of the scope of the patent application attached.

<p>100. . . guide</p><p>110. . . Inner wall</p><p>115. . . Chute</p><p>120. . . Screw</p><p>200. . . Slider</p><p>210. . . Bump</p><p>211. . . First side</p><p>216. . . Second side</p><p>220. . . Outer side</p><p>225. . . Oil filling hole</p><p>230. . . Assembly surface</p><p>235. . . Assembly hole</p><p>250. . . Oil passage</p><p>300. . . Wear-resistant piece</p><p>310. . . Oil groove</p><p>315. . . Oil hole</p><p>400. . . Support plate</p><p>410. . . keyhole</p><p>460. . . Opening</p><p>600. . . Guiding structure</p><p>650. . . Trench</p><p>700. . . Ball</p><p>800. . . Carrier platform</p><p>A. . . Angle</p>

The above and other objects, features, advantages and embodiments of the present invention will become more apparent and understood.

2 is an exploded perspective view of a positioning rail device according to an embodiment of the present invention.

3 is a schematic cross-sectional view of a slider in a positioning slide device according to an embodiment of the present invention.

4A through 4E are schematic views of different embodiments of oil grooves.