TW201444641A - Positioning mechanism - Google Patents

Abstract

The present disclosure relates to a positioning mechanism, for positioning product positioned on an automated assembly line. The positioning mechanism includes a transmission assembly, a carrying assembly and a positioning assembly. The carrying assembly includes a positioning pin, an elastic member and a mounting plate. The elastic member is coiled around the positioning pin, the mounting plate is movable mounted on the positioning pin through the elastic member, the mounting plate used to carry the product, the positioning pin is disposed on the transmission assembly, the transmission assembly drives the product to move on the automated assembly line. The positioning assembly includes a fixing member, a slide plate, an adjusting member and a stopper. The transmission assembly is disposed to a first side of the fixed member, the adjustment member is disposed to a second side of the fixed member, the slide plate is movable mounted on the adjusting member, the stopper is fixed to the slide plate, the slide plate moves along the adjusting member to allow the stopper to engage/disengage the mounting plate.

Description

Positioning mechanism

The invention relates to a positioning mechanism, in particular to a positioning mechanism applied to an automated assembly line.

In automated production lines, various stations are required to process products moving on the assembly line. The product is fastened to the fixture, and the fixture is mounted on the assembly line to drive the product to move on the assembly line. When the product moves to a station, the line stops, and the positioning mechanism fixed on the line locates the product at the station, and the machining operation begins. However, in the process of moving with the assembly line, it is difficult to accurately position the fixture on the station, resulting in a decrease in production yield.

In view of this, it is necessary to provide a positioning mechanism for accurately positioning the product on the assembly line.

A positioning mechanism for positioning products on an automated assembly line. The positioning mechanism includes a transmission assembly, a carrier assembly, and a positioning assembly. The carrying assembly includes a positioning pin, an elastic member and a mounting plate. The elastic member is sleeved on the positioning pin, and the mounting plate is movably mounted on the positioning pin by the elastic member, and the jig is fixed on the mounting plate. The locating pin is fastened to the transmission assembly, and the transmission assembly drives the product to move on the pipeline. The positioning assembly includes a fixing member, a sliding plate, an adjusting member and a limiting plate. The transmission assembly is fixed on one side of the fixing member, the adjusting member is fixed on the other side of the fixing member, the sliding plate is movably mounted on the adjusting member, and the limiting plate is fixed on the sliding plate, and the sliding plate is adjacent to the sliding plate The adjusting member moves to drive the limiting plate to be engaged and disengaged from the mounting plate.

The mounting plate is movably mounted on the positioning pin, and when the product moves to a station with the transmission component, the carrier assembly can be self-adjustingly fastened to the fixing member, and the limiting plate presses the mounting plate to press the mounting plate The product is accurately positioned to ensure production quality and improve production yield.

100. . . Positioning mechanism

200. . . Fixture

10. . . Transmission component

11. . . Transmission Parts

111. . . Support plate

112. . . Positioning hole

12. . . Substrate

13. . . Positioning column

20. . . Bearer component

twenty one. . . Connection plate

211. . . Stepped hole

twenty two. . . Locating pin

221. . . Resist the edge

222. . . Receiving hole

twenty three. . . Elastic part

twenty four. . . Tablet

25. . . Mounting plate

251. . . Socket hole

252. . . Matching hole

30. . . Positioning component

31. . . Fastener

310. . . Plate body

3101. . . Storage slot

3102. . . Receiving hole

311. . . Connecting arm

3111. . . Mounting slot

312. . . Tab

32. . . Sliding plate

321. . . Groove

322. . . Concave hole

33. . . Adjustment piece

331. . . Locking hole

34. . . Bottom plate

341. . . Through hole

342. . . Connection hole

35. . . Limit plate

351. . . Holder

352. . . Passage

353. . . Fixed part

36. . . Cylinder assembly

361. . . Containing parts

362. . . Telescopic rod

363. . . Resisting board

3631. . . Fixed hole

364. . . Nut

37. . . Guide column

38. . . fastener

381. . . Flange

1 is a schematic view showing the assembly of a positioning mechanism according to a preferred embodiment of the present invention.

2 is an exploded perspective view of the positioning mechanism shown in FIG. 1.

Fig. 3 is an enlarged schematic view showing the positioning pin, the elastic member and the pressing piece of the positioning mechanism shown in Fig. 2.

Referring to FIGS. 1 and 2, the positioning mechanism 100 of the preferred embodiment of the present invention includes a transmission assembly 10, a carrier assembly 20, and a positioning assembly 30. The jig 200 is fixed to the carrier assembly 20, and the product is fastened to the jig 200. The carrier assembly 20 is mounted to the transmission assembly 10, and the positioning assembly 30 positions the fixture 200 as the transmission assembly 10 moves the fixture 200 to a station.

The transmission assembly 10 includes a transmission member 11, a substrate 12, and a positioning post 13. The transmission member 11 is disposed on the substrate 12, and the transmission member 11 is removably movable on the substrate 12. In the present embodiment, the transmission member 11 is a chain. A plurality of support plates 111 are disposed on opposite sides of the transmission member 11 , and a positioning hole 112 is defined in each of the support plates 111 , and the positioning post 13 is locked in the positioning hole 112 . The positioning post 13 can be installed in different positioning holes 112 according to the product size.

Referring to FIG. 3, the carrier assembly 20 includes a connecting plate 21, a positioning pin 22, an elastic member 23, a pressing piece 24, and a mounting plate 25. The connecting plate 21 is a rectangular plate body, and a plurality of stepped holes 211 are defined therein, and the plurality of stepped holes 211 are evenly spaced. The positioning pin 22 is a cylindrical body, and a receiving hole 222 is defined in one end surface thereof. An annular abutting edge 221 is disposed on the positioning pin 22 adjacent to the end surface. The elastic member 23 is sleeved on the positioning pin 22 , and the elastic member 23 abuts the resisting edge 221 . The pressing piece 24 abuts against one end of the positioning pin 22 away from the abutting edge 221 . A plurality of receiving holes 251 and two matching holes 252 are defined in the mounting plate 25, and the plurality of receiving holes 251 correspond to the plurality of stepped holes 211. The two matching holes 252 are oppositely disposed.

The positioning assembly 30 includes a fixing member 31, a sliding plate 32, an adjusting member 33, a bottom plate 34, a limiting plate 35, a cylinder member 36, a guide post 37, and a fastener 38. The fixing member 31 is substantially concave and includes a plate body 310 and two connecting arms 311. The two connecting arms 311 are vertically spaced and fixed on the edge of the plate body 310. A receiving slot 3101 is defined in the middle of the plate body 310. The base plate 12 is fixed in the receiving slot 3101. A plurality of receiving holes 3102 are defined in the two sides of the receiving slot 3101. A mounting groove 3111 is defined in a side of each connecting arm 311, and the receiving holes 3102 are exposed in the mounting groove 3111. A protrusion 312 is protruded from an end surface of each connecting arm 311, and the two protrusions 312 are diagonally disposed. Two sliding holes 321 are defined in the sliding plate 32. The two recesses 322 are located between the two recesses 321 and adjacent to the edge of the sliding plate 32.

The adjusting member 33 has a rectangular block shape, and a plurality of locking holes 331 are defined in the fixing member 33, and the adjusting member 33 is locked on the fixing member 31 through the plurality of locking holes 331 and the plurality of receiving holes 3102. The adjusting member 33 is partially received in the recess 321 , and the free end of the adjusting member 33 is fixed on the bottom plate 34 . A through hole 341 is defined in a middle portion of the bottom plate 34, and a connecting hole 342 is defined in each of the two sides of the through hole 341.

In this embodiment, the number of the limiting plates 35 is two, and the two limiting plates 35 are vertically fixed to the outer sides of the two grooves 321 respectively. Each of the limiting plates 35 includes a latching portion 351 and a fixing portion 353. The latching portion 351 is vertically fixed to the free end of the limiting plate 35, and the limiting plate 35 defines a through slot 352. The fixing portion 353 has a substantially right-angled triangular plate shape, and the fixing portion 353 is vertically fixed at a joint between the sliding plate 32 and the limiting plate 35. The number of the fixing portions 353 is four, and the four fixing portions 353 are respectively located at two ends of the through groove 352 and adjacent to the edge of the limiting plate 35.

The cylinder assembly 36 includes a receiving member 361, a telescopic rod 362, a resisting plate 363, and a nut 364. One end of the telescopic rod 362 is movably received in the receiving member 361. The bottom of the resisting plate 363 defines a fixing hole 3631. The holding plate 363 is fixed under the bottom plate 34. The fixing hole 3631 is located at the bottom of the bottom plate 341. On the same straight line, the free end of the telescopic rod 362 passes through the fixing hole 3631, and the nut 364 passes through the through hole 341 to lock the telescopic rod 362 on the bottom plate 34. The number of the guiding posts 37 is two, and one end of each guiding post 37 is locked in a recess 322 in the sliding plate 32. The fastener 38 has a hollow cylindrical shape, and an annular flange 381 protrudes from an outer peripheral wall thereof. The free end of the guide post 37 passes through the connecting hole 342, and the fastener 38 is sleeved at the free end of the guiding post 37. The flange 381 abuts against the bottom plate 34, and the flange 381 is locked to the bottom plate 34 by screws (not shown).

The assembly process and working process of the positioning mechanism 100 are further described below. The positioning pin 22 is locked in the stepped hole 211 of the connecting plate 21, and the elastic member 23 is sleeved on the positioning pin 22. The pressing piece 24 is received in the receiving hole 251 and resists Positioning pin 22. The mounting plate 25 is elastically mounted on the positioning pin 22. The jig 200 is locked to the mounting plate 25 by a plurality of screws (not shown). The substrate 12 is fixed in the receiving groove 3101 of the fixing member 31. The adjusting member 33 is locked on the fixing member 31 through the locking hole 331 and the plurality of receiving holes 3102. The adjusting member 33 is movably received in the recess 321 , and the free end of the adjusting member 33 is fixed on the bottom plate 34 . The sliding plate 32 is slidable along the adjusting member 33. The two limiting plates 35 are respectively locked to the opposite ends of the sliding plate 32 by a plurality of screws, and the through slots 352 facilitate the locking and dismounting of the two limiting plates 35. The cylinder element 36 is locked to the bottom plate 34 through the through hole 341. One end of the guiding post 37 is locked in the recessed hole 322 of the sliding plate 32, and the other end is received in the connecting hole 342. The cylinder assembly 36 urges the slide plate 32 to move along the guide post 37.

When the positioning mechanism 100 is in operation, the product is fastened to the jig 200. The positioning post 13 is locked in the receiving hole 222 of the positioning pin 22, and the jig 200 is connected to the transmission member 11. The transmission member 11 moves to drive the product to move. When the product moves to a station, the transmission member 11 stops moving, and the cylinder assembly 36 moves in a direction away from the transmission member 11, thereby driving the sliding plate 32 to move in a direction away from the transmission member 11, due to the limit. The position plate 35 is fixed to the slide plate 32 such that the holding portion 351 holds the edge of the mounting plate 25. At this time, the stud 312 is received in the fitting hole 252. Since the transmission member 11 is movable, the stud 312 is difficult to align with the fitting hole 252 when it is suddenly stopped. The diameter of the receiving hole 251 is slightly larger than the diameter of the elastic member 23. When the protruding post 312 interferes with the engaging hole 252, the mounting plate 25 can movably insert the engaging hole 252 into the protruding post 312. In this embodiment, the movable gap of the elastic member 23 in the receiving hole 251 is 1 mm. After the processing operation of the product is completed, the cylinder member 36 moves in a direction close to the transmission member 11, the holding portion 351 is disengaged from the mounting plate 25, and the product moves with the transmission member 11 to the next station.

When the transmission member 11 is suddenly stopped, the protrusion 312 is difficult to be accurately inserted into the matching hole 252. However, when the elastic member 23 is in the movable gap of the receiving hole 251, when the protrusion 312 interferes with the matching hole 252, The active gap ensures that the stud 312 is accurately inserted into the mating hole 252. The above process is called product self-adjustment positioning.

The mounting plate 25 is movably mounted on the positioning pin 22. When the product is moved to a station, the mounting plate 25 can be self-adjusting so that the protruding post 312 is received in the matching hole 252, thereby ensuring the positioning component. 30 accurately locate the product to the station. The positioning mechanism 100 of the present invention improves the accuracy of product positioning, ensures production quality, and improves production yield.

100. . . Positioning mechanism

200. . . Fixture

10. . . Transmission component

11. . . Transmission Parts

111. . . Support plate

112. . . Positioning hole

12. . . Substrate

30. . . Positioning component

31. . . Fastener

32. . . Sliding plate

33. . . Adjustment piece

34. . . Bottom plate

35. . . Limit plate

36. . . Cylinder assembly

37. . . Guide column

Claims (10)

A positioning mechanism for positioning a product on an automated assembly line, wherein the positioning mechanism comprises: a transmission assembly, a carrier assembly and a positioning assembly; the carrier assembly comprises a positioning pin, an elastic member and a mounting plate, wherein the elastic member is sleeved a locating pin, the mounting plate is movably mounted on the locating pin by the elastic member, the mounting plate is for carrying a product, the locating pin is fastened on the transmission component, and the transmission component drives the product to move on the pipeline The positioning assembly includes a fixing member, a sliding plate, an adjusting member and a limiting plate fixed to one side of the fixing member, the adjusting member is fixed on the other side of the fixing member, and the adjusting member is movably placed In the sliding plate, the limiting plate is fixed on the sliding plate, and the sliding plate moves along the adjusting member to drive the limiting plate to be engaged and disengaged from the mounting plate. The positioning mechanism of claim 1, wherein the transmission component comprises a transmission member, a substrate and a positioning post, the transmission member is disposed on the substrate, and the transmission member moves on the substrate, the transmission member A plurality of support plates are disposed on opposite sides of the support plate, and a positioning hole is defined in each of the support plates, and the positioning post is locked in the positioning hole. The positioning mechanism of claim 2, wherein the carrier assembly further comprises a connecting plate, the connecting plate is provided with a plurality of stepped holes, the plurality of stepped holes are evenly spaced, and the positioning pin is fixed in the stepped hole Inside. The positioning mechanism of claim 3, wherein the positioning pin is a cylinder, and one end surface defines a receiving hole, and the positioning pin is provided with an annular abutting edge adjacent to the end surface, and the elastic member abuts against the The carrier assembly further includes a pressing piece that abuts against one end of the positioning pin away from the abutting edge. The positioning mechanism of claim 4, wherein the mounting plate defines a plurality of receiving holes, and the plurality of receiving holes correspond to the plurality of stepped holes, and each of the receiving holes is configured to place the pressing piece. The positioning mechanism of claim 5, wherein the fixing member comprises a plate body and two connecting arms fixed vertically on the edge of the plate body, wherein the middle portion of the plate body defines a receiving groove, and the two sides of the receiving groove respectively A plurality of receiving holes are defined, and the substrate is fixed in the receiving slot, and each of the connecting arms protrudes from a protruding post, and the mounting plate defines a matching hole corresponding to the position of the protruding post. The positioning mechanism of claim 6, wherein the positioning component comprises a bottom plate, a groove is formed in the sliding plate, the adjusting member is received in the groove, and a plurality of locking holes are formed in the adjusting member. The adjusting member is locked to the fixing member by the plurality of locking holes and the plurality of receiving holes, and the free end of the adjusting member is fixed on the bottom plate. The positioning mechanism of claim 7, wherein the positioning component comprises a cylinder element, a guiding column and a fastener, wherein a through hole is defined in a middle portion of the bottom plate, and a connecting hole is respectively formed on both sides of the through hole, and the cylinder element passes through the hole A through hole is fixedly connected to the bottom plate, a concave hole is defined in the sliding plate, and one end of the guiding post is locked in the concave hole, and a free end of the guiding post passes through the connecting hole, and the fastener is sleeved on the guiding column At the free end, the cylinder assembly pushes the sliding plate to move along the guide post. The positioning mechanism of claim 8, wherein the number of the limiting plates is two and is disposed outside the groove, each limiting plate comprises a holding portion and a fixing portion, and the holding portion is vertically fixed At the free end of the limiting plate, the fixing portion is vertically fixed at a joint of the sliding plate and the limiting plate. The positioning mechanism of claim 6, wherein the diameter of the receiving hole is larger than the diameter of the elastic member, and the mounting plate is movable on the positioning pin when the protruding post is interfered with the matching hole. The matching hole is further configured to accurately receive the protruding post.