TW201418592A - Linear sliding base with holding device and manufacturing method thereof - Google Patents

Abstract

A linear sliding base with a holding device comprises: a sliding rail, a sliding base device and a holding device. The sliding base device includes: a sliding base body, a plurality of rolling balls and two end covers. Each end cover has an outer cover face perpendicular to an axial line and at least a fixation portion arranged at the outer cover face. The holding device includes at least a holding unit with two fixation ends separately connected to the fixation portions, and a limit rod connected to the fixation ends and limiting the rolling balls, wherein the length of the limit rod is slightly shorter than the interval length of the fixation portions. Thus, the limit rod of the holding unit is stretched at the direction of the fixation ends located at two opposite ends during the installation of the sliding base device to avoid the interference caused by deformation and maintain the smoothness of sliding.

Description

Linear slide with holding device and method of manufacturing same

The present invention relates to a linear slide, and more particularly to a linear slide having a retaining device and a method of manufacturing the same.

1 is a conventional linear slide 10, which includes a slide rail 11 having two wire grooves 111, a slider 12 slidably disposed on the slide rail 11, and two are respectively disposed on End caps 13 at opposite ends of the sliders 12, balls 14 respectively disposed in the sliders 12, and two balls respectively disposed in the sliders 12 and attached to the balls 14 and accommodated in the wires The wire 15 in the groove 111.

However, the conventional steel wires 15 have a soft structural strength, and in addition, the length of the wires 15 is different from the length dimension of the slider 12. Generally, the lengths of the wires 15 are slightly different. Longer than the length of the slider 12, when the opposite ends of the wires 15 are clamped by the end caps 13, the middle position of the wires 15 may be deflected outward or flexed inward, as shown in Fig. 2 and 3 is shown. When the outer deflection is generated, the effect of the wires 15 limiting the balls 14 is poor. When the slider 12 is not assembled to the slide rail 11, the balls 14 are easily dropped, and when the slider 12 is When assembled to the slide rail 11, the wire 15 interferes with the wire groove 111 due to the outward deflection phenomenon, thereby affecting the smoothness of sliding of the slider 12. When the steel wire 15 is deflected inwardly, the steel wire 15 will be severely rubbed with the balls 14, which affects the rolling effect of the balls 14, and also reduces the smoothness of the sliding of the slider 12. On the other hand, there are also people who want to improve When the strength of the steel wire 15 is insufficient, the diameter of the steel wires 15 is increased. Therefore, it is necessary to further deepen the depth of the steel wire grooves 111, thereby increasing the manufacturing cost.

Accordingly, it is an object of the present invention to provide a linear slider having a retaining device that can effectively limit the ball and make the retainer less susceptible to deformation and affect the smoothness of the taxi.

Accordingly, it is another object of the present invention to provide a method of manufacturing a linear slider having a retaining device that can effectively limit the balls and prevent the retainer from being easily deformed to affect the smoothness of the taxi.

Thus, the present invention has a linear slide for the holding device, including a slide rail, a slide device, and a retaining device.

The slide rail includes a slide rail body extending along an axis, and at least one guide groove extending along the axis of the slide rail body.

The slide device is slidably disposed on the slide rail, and includes a slide body extending along the axis, a plurality of balls, and two end covers respectively disposed at opposite ends of the slide body, and at least one disposed on the slide The seat body is connected between the end caps and accommodates the ball returners of the balls, each end cap having an outer end surface perpendicular to the axis, and at least one fixing portion disposed on the outer end surface.

The retaining device includes at least one retainer disposed on the slide device, the retainer having two fixed ends respectively connected to the fixed portions, and a connecting to the fixed ends and limiting the balls and located at the guide a limit rod in the slot, wherein the length of the limit rod is slightly smaller than the interval length of the fixed portions .

Thus, the present invention has a method of manufacturing a linear slider for holding a device, comprising the following steps:

(a): preparing the slide rail, the slide device, and the holding device as described above.

(b): the fixed ends of the retainer are slightly extended outward, and then connected to the fixed portions.

The invention has the beneficial effects that the length of the limiting rod is slightly smaller than the interval length of the fixing portions, so that the limiting rod of the retainer mounted on the sliding device is oriented toward the opposite ends. The fixed end directions are pulled, so that the limiting rod can be rendered straight, effectively restraining the balls, and the phenomenon of interference with the sliding rail after the flexural deformation as described in the prior art can be prevented. In turn, the slide device can maintain good smoothness on the slide rail.

The above and other technical features, features, and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.

Before the present invention is described in detail, it is noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to Figures 4 and 5, a linear slider having a retaining device of the present invention, a first preferred embodiment, includes a slide rail 2, a carriage assembly 3, and a retaining device 4.

Referring to Figures 4 and 9, the slide rail 2 includes a slide extending along an axis L. The rail body 21, and the two guiding grooves 22 respectively located on opposite sides of the rail body 21 and extending along the axis L.

Each of the guiding grooves 22 has a retainer groove 221 located slightly at the top of the guiding groove 22 and extending along the axis L.

Referring to FIG. 5, FIG. 6, FIG. 7, and FIG. 8, the sliding device 3 is slidably disposed on the sliding rail 2, and includes a sliding seat body 31 extending along the axis L. And the end caps 33 of the opposite ends of the slide body 31 are respectively detachably disposed on the slide bases 31, two opposite sides of the ball returning device 34 connected between the end caps 33 for receiving the balls 32, and two sealing members 35 respectively detachably disposed outside the end caps 33, and the respective numbers The screws 36 are screwed to the seals 35, the end caps 33 and the screws 36 of the carriage body 31.

Each of the end caps 33 has an outer end surface 331 perpendicular to the axis L, two fixing portions 332 respectively spaced apart from the outer end surface 331 , and two fastening portions 333 respectively formed on the outer end surface 331 to fasten the holding device 4 . And a pressing groove 334 formed on the outer end surface 331 and connected to the fixing portions 332, and two insertion grooves respectively spaced apart on the opposite side of the outer end surface 331 and corresponding to the ball returners 34 335. In the first preferred embodiment, the fixing portions 332 of each end cover 33 are respectively engaging grooves that are recessed by the outer end surface 331. Moreover, each fixing portion 332 has a convex portion 336 adjacent to the sliding rail 2 and spaced apart from one of the fastening portions 333 to abut the holding device 4, and is connected to the side of the protruding portion 336 and away from A smooth section 337 extending in the direction of the slide rail 2.

Each of the ball reflowers 34 is integrally formed of a plastic material, and has a return pipe 341 connected to the outside of the slide body 31, and two are respectively disposed at opposite ends of the return pipe 341 and are inserted in the inserts. The bent pipe 342 of the groove 335. The return duct 341 and the bent duct 342 define a ball passage 343 that communicates with the guide groove 22 and is accommodated by the balls 32. The balls 32 are allowed to circulate in the ball passage 343 and the guide groove 22, respectively.

Each of the sealing members 35 has two press buttons 351 extending toward the outer end surface 331 and removably inserted into the pressing grooves 334.

Referring to FIG. 10 and FIG. 11 , the holding device 4 includes two retainers 41 respectively disposed opposite to the slider device 3 . Each of the retainers 41 has two fixed ends 411 respectively connected to the fixing portions 332 , and A limiting rod 412 is connected to the fixed ends 411 and limits the balls 32 and is located in the retainer groove 221 of the guiding groove 22. The length H1 of each of the limiting rods 412 is slightly smaller than the interval length of the fixing portions 332. That is, the length H1 of each of the limiting rods 412 is smaller than the interval length H2 of the smoothing sections 337 and the convexities. The interval length H2 of the segments 336 is smaller than the interval length H3 of the equal segments 336. In addition, the cross-sectional shape of each of the limiting rods 412 is a lack of a circle (see FIG. 12), and each of the retainers 41 has a U-shape, and the fixed ends 411 are slightly bent toward each other, and each The fixed ends 411 of a holder 41 respectively have a slightly curved shape to hook the hook end portion 413 on the side of the smooth segments 337. In addition, before the sliding device 3 is assembled in the sliding rail 2, the limiting rods 412 can limit the balls 32 to prevent the balls 32 from falling off. As shown in Figure 6.

In the first preferred embodiment, since the fixing portions 332 are the engaging grooves, the fixed ends 411 of each of the retainers 41 are locked in the engaging grooves, and The receiving rods 412 can be subjected to the pressing action of the engaging portions 333 and the engaging portions 333, respectively, by the action of the engaging portions 336 and the engaging portions 333. The force is applied to the opposite ends of the outer support so that the limiting rod 412 can be more straight, without interfering with the deflection of the retainer groove 221, or facing the same. The ball 32 is deflected and deformed in the direction of the ball 32, which affects the smoothness of the rolling of the balls 32. On the other hand, the pressing action of the press-fit button 351 against the outer side of the fixed ends 411 can further ensure the The fixed end 411 can be restrained without being disengaged. In addition, it is worth mentioning that, by the above design, the cross-sectional dimensions of the limiting rods 412 of each retainer 41 need not be large, and the mechanical strength can be maintained to prevent deformation, so that the corresponding The cross-sectional dimension of the retainer groove 221 of the limiting rod 412 can also be reduced to reduce the cost of processing.

Referring to FIG. 13 , a second preferred embodiment of the linear slider with the holding device of the present invention is substantially the same as the first preferred embodiment, except that the sectional shape of the limiting rod 412 is The first preferred embodiment has a smaller cross-sectional area lacking a circle.

Referring to FIG. 14, a third preferred embodiment of the linear slider with the holding device of the present invention is substantially the same as the first embodiment, and the difference is as follows: The limiting rod 412 has a triangular cross section.

Referring to FIG. 5 and FIG. 15, a preferred embodiment of the method for manufacturing a linear slider of the present invention comprises the following steps: Step 20: preparing the slide rail 2 as described above, the slide device 3, and The holding device 4.

Step 30: After the fixed ends 411 of the retainers 41 are slightly extended outward, the fixed ends 411 are respectively connected to the fixing portions 332, and the fastening portions 333 are respectively fastened to the fastening portions 333. The side of the fixed end 411 is such that the fixed ends 411 can be fastened to the fixing portions 332. Finally, the sealing members 35 are respectively screwed to the outside of the end caps 33, so that the sealing members are respectively The press-fit buckles 351 of the 35 are respectively inserted into the press-fit recesses 334 to press the press-fit buckles 351 against the fixed ends 411, respectively, so as to complete the assembly.

According to the above description, the linear slider with the holding device of the present invention and the manufacturing method thereof have the following advantages and effects:

1. The length H1 of each of the limiting rods 412 is slightly smaller than the interval length of the fixing portions 332, so that the limiting rod 412 of each of the holders 41 mounted on the slider device 3 is oriented toward The opposite ends of the fixed ends 411 are pulled in the direction, so that the limiting rods 412 can be straight and effectively confined to the balls 32 to prevent the balls 32 from falling off, and can be prevented as in the prior art. The phenomenon of the flexural deformation interfering with the retainer grooves 221 of the slide rail 2 allows the slide device 3 to maintain good smoothness on the slide rail 2.

Second, by the design of the convex segments 336 and the fastening portions 333, The fixed ends 411 of each of the retainers 41 are pressed against the engaging portions 333 by the protruding portions 336, so that the limiting rods 412 can be pulled by the opposite ends of the retaining rods, so that The limiting rod 412 can be more straight, and avoids the deformation of the retainer groove 221 to cause interference.

3. The balls 32 are integrally formed of the plastic material by the return passages of the balls 32, so that the ball passages 343 for the balls 32 to flow are defined to be smoother, so that the balls 32 can be smoothly rolled.

4. By reducing the cross-sectional size of the retaining rod 412 of each retainer 41, the size of the retainer groove 221 can also be reduced, so that the processing cost can be greatly reduced.

The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.

20~30‧‧‧Steps

2‧‧‧Slide rails

21‧‧‧Slide rail body

22‧‧‧ guiding slot

221‧‧‧keeper groove

3‧‧‧Sliding device

31‧‧‧Slide body

32‧‧‧ balls

33‧‧‧End cover

331‧‧‧Outer end face

332‧‧‧ fixed department

333‧‧‧Deduction Department

334‧‧‧Compression groove

335‧‧‧ inserted slots

336‧‧‧bump

337‧‧‧ Smooth section

34‧‧‧Ball return

341‧‧‧Return pipeline

342‧‧‧Bending pipe

343‧‧‧Road access

35‧‧‧Seal

351‧‧‧ Pressing buckle

36‧‧‧ screws

4‧‧‧ Keeping device

41‧‧‧ Keeper

411‧‧‧ fixed end

412‧‧‧Limited rod

413‧‧‧ hook end

L‧‧‧ axis

H1‧‧‧ length

H2‧‧‧ interval length

H3‧‧‧ interval length

1 is a partial perspective cross-sectional view of a conventional linear slide; FIG. 2 is a schematic view showing a state in which a wire of the linear slide is flexed outwardly; FIG. 3 is a schematic view showing the linearity. FIG. 4 is a perspective assembled view of the linear slider of the present invention with a retaining device; FIG. 5 is a perspective view of the first preferred embodiment of the present invention; FIG. Three-dimensional exploded view; Figure 6 is a partial perspective view of the first preferred embodiment, a slide rail and a seal of a slide device are not shown; Figure 7 is a partial perspective view of the first preferred embodiment, The slide rail, the seal member and the plurality of balls of the slide device, and a retaining device are not shown; FIG. 8 is a cross-sectional view taken from line VIII-VIII of FIG. 4; and FIG. 9 is taken from line IX of FIG. - Figure 1 is a cross-sectional view taken from line XX of Figure 8; Figure 11 is a partially enlarged view showing the state of a retainer of the holding device; Figure 12 is the first preferred embodiment 1 is a partial cross-sectional view illustrating a cross-sectional shape of a retaining rod of the retaining device; FIG. 13 is a partial cross-sectional view of a second preferred embodiment of the linear slider having a retaining device of the present invention, illustrating a limit of a retaining device Figure 14 is a partial cross-sectional view of a third preferred embodiment of the linear slider of the present invention having a retaining device, illustrating a cross-sectional shape of a retaining rod of a retaining device; and Figure 15 is a retaining device of the present invention Flow chart of a preferred embodiment of a linear slider

2‧‧‧Slide rails

21‧‧‧Slide rail body

22‧‧‧ guiding slot

221‧‧‧keeper groove

3‧‧‧Sliding device

31‧‧‧Slide body

32‧‧‧ balls

33‧‧‧End cover

331‧‧‧Outer end face

332‧‧‧ fixed department

333‧‧‧Deduction Department

334‧‧‧Compression groove

335‧‧‧ inserted slots

336‧‧‧bump

337‧‧‧ Smooth section

34‧‧‧Ball return

341‧‧‧Return pipeline

342‧‧‧Bending pipe

343‧‧‧Road access

35‧‧‧Seal

351‧‧‧ Pressing buckle

4‧‧‧ Keeping device

41‧‧‧ Keeper

411‧‧‧ fixed end

412‧‧‧Limited rod

413‧‧‧ hook end

L‧‧‧ axis

Claims (12)

The utility model relates to a linear sliding seat with a holding device, comprising: a sliding rail comprising: a sliding rail body extending along an axis; and at least one guiding groove extending along the axis of the sliding rail body; a sliding seat device Slidably disposed on the slide rail, and includes a slide body extending along the axis, a plurality of balls, and two end covers respectively disposed at opposite ends of the slide body, and at least one disposed on the slide body and connected to Between the end caps, a ball recirculating device for accommodating the balls, each end cap having an outer end surface perpendicular to the axis, and at least one fixing portion disposed on the outer end surface; and a retaining device including at least a holder disposed on the slider device, the holder having two fixed ends respectively connected to the fixing portions, and a limit connected to the fixed ends and limiting the balls and located in the guiding grooves a rod, wherein the length of the limiting rod is slightly smaller than the length of the interval of the fixing portions. A linear slider having a retaining device according to the first aspect of the invention, wherein the retainer has a slightly U-shaped outer shape, and the fixed ends are slightly bent toward each other inwardly. A linear slider having a retaining device according to claim 1, wherein each of the fixing portions has a convex portion adjacent to the sliding rail, and a side connected to the convex portion and away from the sliding rail The extended smoothing section has a length smaller than an interval length of the smoothing segments and an interval length of the convex segments, and the interval length of the smoothing segments is also smaller than the interval length of the convex segments. A linear slider having a retaining device according to claim 3, wherein each end cap further has at least one engaging portion formed on the outer end surface and spaced apart from the protruding portion, the engaging portion being used for Limit the fixed end. A linear slide having a retaining device according to claim 1, wherein the slide device further comprises two seals respectively detachably disposed outside the end caps, each seal having at least one Each of the end caps has at least one press-fit recess formed on the outer end surface and connected to the fixing portion and inserted into the press-fit buckle. A linear slider having a retaining device according to the invention of claim 1 or 3 or 5, wherein the fixing portion of each end cap is an engaging groove recessed by the outer end surface, the retainer The fixed ends of the fixed ends are respectively locked in the engaging grooves. A linear slider having a retaining device according to claim 1, wherein each end cap further has at least one insertion groove corresponding to the ball recirculating device, the ball reflow device being integrally formed and having a return pipe connected to the outside of the slide body, and two bent pipes respectively disposed at opposite ends of the return pipe and inserted in the insertion grooves, the return pipe defining a connection with the bent pipes a ball passage for the guide groove and for the balls. A linear slide having a retaining device according to claim 1, wherein the guide groove has a retainer groove extending along the axis for receiving the retaining rod. A linear slider having a retaining device according to the first aspect of the invention, wherein the fixed ends of the retainer each have a slightly curved shape The end of the hook. A linear slider having a retaining device according to claim 1, wherein the retaining rod has a cross-sectional shape that is vacant. A linear slider having a retaining device according to claim 1, wherein the retaining rod has a triangular cross-sectional shape. A manufacturing method of a linear slider having a holding device, comprising the steps of: (a) preparing the slide rail according to claim 1 of the patent application, the slide device, and the holding device; and (b): The fixed ends of the holder are slightly extended outward and then connected to the fixing portions.