TWI678486B - Detachable linear module - Google Patents

Abstract

A detachable linear module includes a base unit, a screw rotatably disposed on the base unit, and a linear unit. The linear unit includes a slider movably disposed on the base unit and a nut module disposed on the slider. The slider has a first side and a first side opposite to the first side. Two side surfaces, and forming a slider perforation extending from the first side to the second side, the nut module has a nut, and the nut is detachably disposed in the slider perforation, and is opposite to the screw The rotation direction is fixed, the nut defines an inner hole, the screw is screwed with the nut module, and the inner hole penetrates the slider and perforates.

Description

Detachable linear module

The invention relates to a linear module, in particular to a detachable linear module.

As shown in FIG. 1, a conventional linear module generally includes a base 1, a slider 2 provided on the base 1 and capable of moving forward and backward along the axial direction and having an internal screw hole 201, and a The screw 3 is rotatably disposed on the base 1 and screwed with the inner screw hole 201. In this way, when the screw 3 rotates, the slider 2 can be driven to move forward and backward relative to the base 1 in the axial direction. However, since the internal screw hole 201 is integrally formed inside the slider 2, when the user needs to change the lead during use, the slider 2 can only be replaced by the original manufacturer and used. You cannot replace the slider 2 by yourself. If the original manufacturer cannot provide such a service, you can only replace the entire set of linear modules. Such linear modules are quite inconvenient when changing the lead, and will increase. The cost of replacing the device by the user is not easy to customize.

Therefore, an object of the present invention is to provide a detachable linear module capable of overcoming at least one disadvantage of the prior art.

Therefore, the detachable linear module of the present invention includes a base unit, a screw, and a linear unit.

The screw is rotatably disposed on the base unit. The linear unit includes a slider movably disposed on the base unit and a nut module disposed on the slider. The slider has a first side and a first side opposite to the first side. Two side surfaces, and forming a slider perforation extending from the first side to the second side, the nut module has a nut, and the nut is detachably disposed in the slider perforation, and is opposite to the screw The rotation direction is fixed, the nut defines an inner hole, the screw is screwed with the nut module, and the inner hole penetrates the slider and perforates.

The effect of the present invention is that the design of the slider perforation of the nut detachably provided on the slider allows the user to easily change the nut and the screw by himself when the lead needs to be changed. When manufacturing, the slider and the nut can perform their respective required machining operations to shorten the overall machining time.

10‧‧‧ base unit

20‧‧‧Screw

21‧‧‧ Outer spiral orbit

30‧‧‧ linear unit

31‧‧‧ Slider

311‧‧‧first side

312‧‧‧second side

313‧‧‧ slider perforation

314‧‧‧Screw hole

315‧‧‧Large Aperture Section

316‧‧‧Small Aperture

317‧‧‧Shoulder

32‧‧‧nut module

33‧‧‧Fixed device

331‧‧‧First fixed part

332‧‧‧Second Fixing Section

34‧‧‧stop screw

341‧‧‧Head

35‧‧‧nut

351‧‧‧inner hole

352‧‧‧Recess

353‧‧‧Inner spiral orbit

354‧‧‧First through hole

355‧‧‧second through hole

356‧‧‧first end face

357‧‧‧Second end face

36‧‧‧Reflow cap

361‧‧‧Circulation channel

37‧‧‧ball

40‧‧‧first end cover unit

41‧‧‧first end cap

411‧‧‧first through hole

412‧‧‧The first limit card slot

413‧‧‧Axial stop

42‧‧‧First stop

421‧‧‧Large Trail Section

422‧‧‧footpath

423‧‧‧Card Block

424‧‧‧Hook

425‧‧‧Axial through hole

43‧‧‧The first seal

431‧‧‧second through hole

432‧‧‧Second limit slot

44‧‧‧The first sealing cap

45‧‧‧first locking screw

50‧‧‧Second end cap unit

51‧‧‧Second end cap

52‧‧‧Second stopper

53‧‧‧Second sealing sheet

54‧‧‧Second sealing cover

55‧‧‧Second locking screw

X‧‧‧ axial

1‧‧‧ base

2‧‧‧ slider

201‧‧‧Inner screw hole

3‧‧‧ Screw

Other features and effects of the present invention will be clearly presented in the embodiment with reference to the drawings, in which: FIG. 1 is a combined sectional view of a conventional linear module; 2 is a perspective external view of an embodiment of a detachable linear module of the present invention; FIG. 3 is an incomplete perspective exploded view of the embodiment; FIG. 4 is a partial perspective of a linear unit of the embodiment Exploded view; FIG. 5 is a sectional view taken along line VV in FIG. 2; FIG. 6 is a sectional view taken along line VI-VI in FIG. 5; FIG. 7 is taken along line 7 in FIG. -A cross-sectional view taken along Ⅶ; and FIG. 8 is a cross-sectional view taken along line Ⅷ-Ⅷ in FIG. 5.

Referring to FIGS. 2, 3 and 4, an embodiment of a detachable linear module according to the present invention includes a base unit 10, a screw 20, a linear unit 30, and a first end cover. The unit 40 and a second end cover unit 50.

The screw 20 is rotatably disposed on the base unit 10 and extends in an axial direction X. In this embodiment, an outer spiral track 21 is formed on the outer peripheral surface of the screw 20.

As shown in FIGS. 4, 5 and 6, the linear unit 30 includes a slider 31 movably disposed on the base unit 10 along the axial direction X, a nut module 32 disposed on the slider 31, A fixing device 33 is disposed between the slider 31 and the nut module 32, and a stop screw 34 is disposed on the slider 31.

The slider 31 has a first side surface 311 and a second side surface 312 opposite to the first side surface 311, and forms a slider hole 313 extending from the first side surface 311 to the second side surface 312. An outer peripheral surface of the block 31 is formed with a screwing hole 314 extending to communicate with the through hole 313 of the slider. In this embodiment, the slider perforation 313 has a large-aperture portion 315 adjacent to the first side surface 311, a small-aperture portion 316 adjacent to the second side surface 312 and having a smaller aperture than the large-aperture portion 315, and a A shoulder 317 is defined between the large and small aperture portions 315, 316.

As shown in FIGS. 4, 6 and 7, the nut module 32 includes a nut 35, a return cover 36 disposed on the nut 35, and a plurality of balls 37.

The nut 35 is detachably disposed in the slider hole 313 and is fixed relative to the rotation direction of the screw 20. The nut 35 defines an inner hole 351. In this embodiment, the nut 35 is disposed in the nut 35. In the large-aperture portion 315, an outer groove 352 is formed on the outer peripheral surface of the nut 35, and an inner spiral track 353 corresponding to the outer spiral track 21 is formed on the inner peripheral surface of the nut 35, and a first A through hole 354 and a second through hole 355 communicating with the inner spiral track 353. The nut 35 has a first end surface 356 facing the first side surface 311 and a second end surface 312 facing the second side surface 312 and The second end surface 357 of the shoulder portion 317 abuts each other. The outer diameter of the nut 35 is larger than the diameter of the small-aperture portion 316.

The return cover 36 is installed in the inserting groove 352 and forms a circulation channel 361. Both ends of the circulation channel 361 communicate with the inner spiral track 353 through the first and second through holes 354 and 355.

The screw 20 is screwed with the nut module 32 and penetrates the inner hole 351 and the slider hole 313 along the axial direction X. In this embodiment, the outer spiral orbit 21 of the screw 20 and the inner spiral orbit 353 of the nut 35 via the balls 37 generate a screw connection. When the screw 20 rotates, the balls 37 can be driven through The circulation passage 361 rolls cyclically in the inner spiral track 353 and the outer spiral track 21, so that the nut 35 drives the slider 31 to move along the axial direction X relative to the screw 20.

The fixing device 33 is disposed between the slider 31 and the nut 35, and has a first fixing portion 331 provided on the slider 31 and a second fixing portion 332 provided on the nut 35. The first and second fixing portions 331 and 332 cooperate with each other to restrict the nut 35 from rotating and moving relative to the slider hole 313. In this embodiment, the first fixing portion 331 is a stop screw, the second fixing portion 332 is a fixing groove formed on the outer peripheral surface of the nut 35, and the first fixing portion 331 is a detachable lock. Connected to the screw connection hole 314 and extending inwardly into the second fixing portion 332, so that the nut 35 is fixed relative to the rotation direction of the screw 20, the first fixing portion 331 abuts the nut 35, It is also possible to restrict the nut 35 from moving forward with respect to the slider hole 313.

As shown in FIGS. 5 and 8, the stop screw 34 is removably locked to the first side surface 311 of the slider 31 and has a head portion that abuts the first end surface 356 of the nut 35. 341. The stop screw 34 can limit the nut 35 from moving outward relative to the slider hole 313.

As shown in FIGS. 4, 6 and 8, the first end cover unit 40 is detachably disposed on the first side surface 311 of the slider 31 and includes a first end cover 41 abutting on the first side surface 311, A first stopper 42, a first sealing gasket 43 abutting on the outer side surface of the first end cover 41, and a first sealing cap 44 abutting on the outer side surface of the first sealing cover 43, And two first locking screws 45.

The first end cover 41 defines a first through hole 411 extending from the outer side to the inner side, and a first limiting slot 412 extending from the outer side to the inner side and communicating with the first through hole 411. The first end cover 41 has two axial stops 413 opposite to each other and located on both sides of the first through hole 411.

The first stopper 42 has a large-diameter section 421 installed in the first through-hole 411 and abutting against the first end surface 356 of the nut 35, and is connected to the large-diameter section 421 and extends along the axial direction X. A small diameter section 422 extending outside the first end cover 41, a clamping block 423 extending outward from the large diameter section 421 in a radial direction to the first limit card slot 412, and two On the contrary, the barbs 424 provided on the large-diameter section 421 and abutting the inner sides of the axial stoppers 413 respectively. The outer diameter of the large-diameter section 421 is larger than the outer diameter of the small-diameter section 422. The stopper 42 also defines an axial through hole 425 through which the screw 20 passes. The bottom of the axial through hole 425 is open.

The first sealing gasket 43 has a second through-hole 431 corresponding to the first through-hole 411 of the first end cover 41, and a second through-hole communicating with the second through-hole 431 and corresponding to the first end cover 41. The second limit slot 432 of the first limit latch slot 412. In this embodiment, the large-diameter section 421 of the first stopper 42 passes through the first through hole 411 and faces outward in the axial direction X. Extending into the second through hole 431, the clamping block 423 of the first stopper 42 and the second limit card slot 432 engage with each other. It can be understood that the clamping block 423 of the first stopper 42 Embedding the card in the first and second limit card slots 412 and 432 can restrict the first stopper 42 from rotating relative to the screw 20.

The first locking screws 45 pass through the first sealing cover 44, the first sealing gasket 43, and the first end cover 41 from the outside to the inside to lock the slider 31 to seal the first seal. The cover 44, the first gasket 43, the first end cover 41 and the first stopper 42 are fixed to the first side 311 of the slider 31. In this embodiment, the first stopper 42 The small-diameter section 422 further extends outward along the axial direction X beyond the first sealing gasket 43 and the first sealing cover 44.

The second end cover unit 50 is disposed on the second side surface 312 of the slider 31, and the screw 20 penetrates the second end cover unit 50. In this embodiment, the second end cover unit 50 is detachably disposed on the second side surface 312 of the slider 31 and includes a second end cover 51 and a second stopper abutting on the second side surface 312. A stopper 52, a second sealing gasket 53 abutting on the outer side surface of the second end cap 51, and a second sealing gasket 53 abutting on the second sealing gasket 53 The second sealing cover 54 and two second locking screws 55 on the outer side. The element structure of the second end cover unit 50 is similar to the first end cover unit 40, which will not be described in detail here.

Thereby, when the screw 20 is rotated, the linear unit 30 can be driven to move the first and second end cover units 40 and 50 along the axial direction X relative to the base unit 10 forward and backward.

Through the above description, the advantages of the present invention can be summarized as follows:

1. After removing the first end cover unit 40 in the present invention, simply loosening the first fixing portion 331 and the stop screw 34, the nut can be retained while the slider 31 is retained. 35 and the screw 20 are removed from the slider 31, and another set of the nuts 35 and the screw 20 with different leads are replaced. Compared with the conventional technology, the present invention can facilitate users when they need to change the lead It is convenient to replace the nut 35 and the screw 20 by oneself, and can reduce the cost of replacing the equipment by the user, and it is convenient for the manufacturer to customize according to the lead requirements of the nut 35 and the screw 20 by different customers. Design.

2. Compared with the conventional technology, during the manufacturing process of the present invention, the slider 31 and the nut 35 can perform respective required processing operations, so the processing time can be effectively reduced.

3. The small-diameter section 422 of the first stopper 42 of the first end cover unit 40 of the present invention protrudes from the first end cover 41, the first sealing gasket 43 and the first sealing cover. Besides 44, when the slider 31 is transferred, the small-diameter section 422 can have a cushioning effect to prevent impact.

4. The present invention can utilize the mutual cooperation of the first and second fixing portions 331 and 332 of the fixing device 33 to limit the rotation and movement of the nut 35 relative to the through hole 313 of the slider. The stop screw 34 restricts the nut 35 from moving outward relative to the slider hole 313, and uses the large diameter section 421 of the first stopper 42 mounted on the first end cover 41 to assist against the The nut 35, so the present invention can stably locate the nut 35 in the slider hole 313 of the slider 31 and be combined with the slider 31.

In summary, the detachable linear module of the present invention not only allows the user to easily replace the nut and the screw by himself when the lead needs to be changed, but also reduces the overall processing time required during manufacturing. Therefore, the purpose of the invention can be achieved.

However, the above are only examples of the present invention. When the scope of implementation of the present invention cannot be limited in this way, any simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the patent specification of the present invention are still Within the scope of the invention patent.

Claims (7)

A detachable linear module includes: a base unit; a screw rotatably disposed on the base unit; a linear unit including a slider movably disposed on the base unit; and a setting In the nut module of the slider, the slider has a first side and a second side opposite to the first side, and forms a slider perforation extending from the first side to the second side. The nut module has a nut, the nut is detachably provided in the slider perforation, and is fixed relative to the rotation direction of the screw. The nut defines an inner hole, and the screw and the nut mold And a first end cover unit detachably disposed on a first side of the slider and including a first abutting on the first side An end cover, and a first stopper, the first end cover forming a first through hole extending from the outer side to the inner side, and a first through hole extending from the outer side to the inner side and communicating with the first through hole A limiting card slot, the first end cover has two oppositely disposed and located on both sides of the first through hole Toward the stopper, the first stopper defines an axial through hole for the screw to pass out, and the first stopper has a large portion mounted on the first through hole and abutting the first end face of the nut. A diameter section, a small diameter section connected to the large diameter section and extending outwardly outside the first end cover along an axial direction, and a large diameter section extending radially outward from the large diameter section to the first limit position The card slots engage the card blocks with each other, and two barbs which are oppositely disposed on the large diameter section and abut on the inner sides of the axial stops, respectively, and the outer diameter of the large diameter section is larger than that of the small diameter section. path. The detachable linear module according to claim 1, wherein the linear unit further includes a fixing device provided between the slider and the nut, and the fixing device has a first device provided on the slider The fixing portion and a second fixing portion provided on the nut. The first and second fixing portions cooperate with each other to restrict the nut from rotating and moving relative to the perforation of the slider. The detachable linear module according to claim 2, wherein the outer peripheral surface of the slider is formed with a screw hole extending to the through hole of the slider, the first fixing portion is a stop screw, and the first The two fixing portions are fixing grooves formed on the outer peripheral surface of the nut. The first fixing portion is removably locked to the screw connection hole and extends inwardly into the second fixing portion. The detachable linear module according to claim 3, wherein the linear unit further includes a stop screw, and the slider perforation of the slider has a large hole portion adjacent to the first side, and a portion adjacent to the first hole. A small aperture portion on the second side with an aperture smaller than the large aperture portion, and a shoulder portion defined between the large and small aperture portions, the nut is disposed on the large aperture portion and has a A first end surface, and a second end surface facing the second side surface and abutting against the shoulder portion, an outer diameter of the nut is larger than that of the small hole portion, and the stop screw is removably locked to the The first side of the slider has a head part against the first end surface of the nut, and the stop screw restricts the nut from moving relative to the perforation of the slider. The detachable linear module according to claim 4, wherein the first end cover unit further includes a first sealing gasket abutting on an outer side surface of the first end cover, and a first abutting portion on the first end cover. A first sealing cover on the outer side of the gasket and two first locking screws, the first gasket having a second through hole corresponding to the first through hole of the first end cover, and a first through hole The second through hole communicates with the second limit groove corresponding to the first limit catch groove of the first end cover, and the large diameter section of the first stopper extends outward along the axial direction to the second through hole. Inside, the clamping block of the first stopper and the second limiting card slot are engaged with each other, and the first locking screws pass through the first sealing cover, the first sealing gasket and the The first end cover is locked to the slider, and the first sealing cover, the first sealing gasket, the first end cover, and the first stopper are fixed to the first side of the slider. The small diameter section of the first stopper extends outward along the axial direction to the outside of the first sealing gasket and the first sealing cover. The detachable linear module according to claim 5, further comprising a second end cover unit, the second end cover unit is disposed on a second side of the slider, and the screw penetrates the second end cover unit. The detachable linear module according to claim 1, wherein an outer spiral track is formed on an outer peripheral surface of the screw, the nut module further has a return cover provided on the nut, and a number of balls, the screw An outer groove is formed on the outer peripheral surface of the cap. The return cover is mounted on the inner groove and forms a circulation channel. The inner peripheral surface of the nut is formed with an inner spiral track corresponding to the outer spiral track. It communicates with the inner spiral orbit. When the screw rotates, the balls circulate in the inner spiral orbit and the outer spiral orbit.