CN110355707B

CN110355707B - Positioning mechanism

Info

Publication number: CN110355707B
Application number: CN201910517980.5A
Authority: CN
Inventors: 董新营; 席志成; 张文亮; 程旎
Original assignee: Wuhan Marine Machinery Plant Co Ltd
Current assignee: Wuhan Marine Machinery Plant Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2021-08-10
Anticipated expiration: 2039-06-14
Also published as: CN110355707A

Abstract

The invention discloses a positioning mechanism, and belongs to the technical field of positioning. The positioning mechanism comprises a positioning seat, a positioning bolt and a limiting assembly, wherein a groove is formed in the positioning bolt, the limiting assembly comprises a limiting plate and a supporting plate, and a convex block and a limiting block are arranged at two ends of the limiting plate. The positioning mechanism is simple to operate and can be used without the help of other tools.

Description

Positioning mechanism

Technical Field

The invention belongs to the technical field of positioning, and particularly relates to a positioning mechanism.

Background

In the field of mechanical assembly, the most common way of positioning between workpieces is by bolting. The bolt connection is characterized in that a bolt is inserted into a workpiece and then is in threaded connection with the bolt through a nut to lock the workpiece, so that the purpose of positioning the workpiece is achieved.

In the process of implementing the invention, the inventor finds that the prior art has at least the following problems:

in the process of dismounting the bolt, a specific tool, such as a wrench, needs to be used for matching, and the operation difficulty of workers is increased.

Disclosure of Invention

The embodiment of the invention provides a positioning mechanism which is simple to operate and can be used without the help of other tools. The technical scheme is as follows:

the embodiment of the invention provides a positioning mechanism, which comprises a positioning seat, a positioning bolt and a limiting assembly, wherein the positioning seat is arranged on the positioning seat;

the positioning seat is provided with a through hole, the mounting end of the positioning bolt is used for penetrating through the through hole and detachably mounting the positioning bolt with a to-be-connected piece, the limiting end of the positioning bolt is provided with a bolt cap, the bolt cap is used for abutting against one side of the positioning seat, the bolt cap is provided with a groove, and the groove is circumferentially arranged along the outer edge of the bolt cap;

the limiting assembly comprises a limiting plate and a supporting plate, the supporting plate is fixed to the positioning seat, a protruding block is arranged at one end of the limiting plate, a limiting block is arranged at the other end of the limiting plate, the middle of the limiting plate is arranged along the axial direction of the positioning bolt and is rotatably arranged, the supporting plate is far away from one end of the positioning seat, and a space used for containing the protruding block is arranged between the positioning seat and the one end of the positioning seat.

Further, the limiting assembly further comprises two supporting plates, the two supporting plates are arranged on the positioning seat in parallel, and the limiting plate is rotatably arranged between the two supporting plates.

Furthermore, two all set up first through-hole in the backup pad, the limiting plate middle part is provided with the second through-hole, first through-hole with the second through-hole is arranged relatively, first through-hole with equal cartridge has same connecting bolt in the second through-hole.

Further, the limiting assembly further comprises a base plate, the base plate is sleeved on two ends of the connecting bolt, and the base plate is clamped between the connecting bolt and the supporting plates.

Furthermore, the bolt cap comprises a bolt head, a bolt rod and a bolt pad, one end of the bolt rod is connected with the bolt head, the other end of the bolt rod is connected with the bolt pad, the bolt pad is used for abutting against one side of the positioning seat, and the groove is formed among the bolt head, the bolt rod and the bolt pad.

Further, one side of the bump, which is far away from the limiting plate, is of an arc-shaped structure.

Further, set up the mounting groove on the stopper, the mounting groove is provided with the magnet piece.

Furthermore, a buffer block is further arranged on the limiting block, and the buffer block is arranged at one end, contacted with the positioning seat, of the limiting block.

Furthermore, the limiting assembly further comprises a clamping plate, the clamping plate is arranged at one end, deviating from the positioning seat, of the supporting plate, and the clamping plate is located between the protruding block and the limiting block.

Furthermore, a pin hole is formed in the mounting end of the positioning bolt along the radial direction of the positioning bolt, and a pin is inserted into the pin hole.

The technical scheme provided by the embodiment of the invention has the following beneficial effects:

through setting up positioning mechanism, this positioning mechanism includes positioning seat, gim peg and spacing subassembly, is provided with the recess on the gim peg, and spacing subassembly includes limiting plate and backup pad, and the limiting plate both ends are provided with lug and stopper. On the one hand, during positioning mechanism location, place the gim peg in the through-hole top and let it do the free fall, tie the cap and extrude the lug at whereabouts in-process to make the limiting plate use its self middle part to rotate towards a direction as the axle, the lug is rotatory to the space between backup pad and the positioning seat in, make the cap of tie of gim peg can continue the whereabouts, offset until one side with the positioning seat. Then the limiting plate is reversed, so that the convex block is clamped in the groove, and the limiting block is abutted to one side of the positioning seat. Under this state, because the stopper supports against one side of positioning seat. The positioning bolt can not move upwards any more, namely the positioning bolt is locked on the positioning seat, so that the to-be-connected piece can be installed on the installation end of the positioning bolt, and the to-be-connected piece can be installed in a positioning mode. On the other hand, when the positioning mechanism is unlocked, the limiting block is manually rotated towards one direction again, so that the convex block is separated from the groove, the locking between the positioning bolt and the limiting plate can be unlocked, and finally, the positioning bolt can be directly pulled out. The positioning mechanism is simple to operate and can be used without the help of other tools.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a positioning mechanism according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a limiting plate provided by the embodiment of the invention;

FIG. 3 is a schematic structural diagram of an uninstalled state of a positioning mechanism provided in an embodiment of the present invention;

FIG. 4 is a schematic structural diagram illustrating an installation state of a positioning mechanism according to an embodiment of the present invention;

FIG. 5 is a schematic structural diagram illustrating a released state of a positioning mechanism according to an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a support plate provided in an embodiment of the present invention;

fig. 7 is a top view of the positioning socket provided in the embodiment of the present invention.

The symbols in the drawings represent the following meanings:

1. positioning seats; 11. a through hole; 2. positioning bolts; 21. a bolt cap; 211. a groove; 212. a bolt head; 213. a bolt rod; 214. a pad; 22. a pin hole; 3. a limiting component; 31. a limiting plate; 311. a bump; 312. a limiting block; 313. a second through hole; 3121. mounting grooves; 3122. a magnet block; 3123. a buffer block; 32. a support plate; 321. a first through hole; 322. a connecting bolt; 33. a base plate; 34. clamping a plate; 341. a square groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

For a better understanding of the invention, the structure of the positioning mechanism is briefly described below:

fig. 1 is a schematic structural diagram of a positioning mechanism according to an embodiment of the present invention, and as shown in fig. 1, the positioning mechanism includes a positioning seat 1, a positioning bolt 2, and a limiting assembly 3. Be provided with through-hole 11 on the positioning seat 1, the installation end of gim peg 2 is used for passing through-hole 11 and with treat connecting piece demountable installation, and the spacing end of gim peg 2 is provided with cap 21, and cap 21 is used for offseting with one side of positioning seat 1, is provided with recess 211 on the cap 21, and the recess 211 is arranged along the outward flange circumference of cap 21.

The limiting component 3 comprises a limiting plate 31 and a supporting plate 32, and the supporting plate 32 is fixed on the positioning seat 1. Fig. 2 is a schematic structural diagram of a limiting plate according to an embodiment of the present invention, as shown in fig. 2, one end of the limiting plate 31 is provided with a protruding block 311, the other end of the limiting plate 31 is provided with a limiting block 312, the middle portion of the limiting plate 31 is axially and rotatably disposed on one end of the supporting plate 32 away from the positioning seat 1 along the positioning bolt 2, a space for accommodating the protruding block 311 to rotate is disposed between one end of the supporting plate 32 away from the positioning seat 1 and the positioning seat 1, the limiting plate 31, the supporting plate 32 and the nut 21 are all located on the same side of the positioning seat 1, and when the protruding block 311 is clamped in the groove 211 and the nut 21 abuts against the positioning seat 1, the limiting block 312 abuts against one side of the positioning seat 1.

According to the embodiment of the invention, the positioning mechanism is arranged and comprises the positioning seat, the positioning bolt and the limiting assembly, the positioning bolt is provided with the groove, the limiting assembly comprises the limiting plate and the supporting plate, and the two ends of the limiting plate are provided with the bump and the limiting block. On the one hand, during positioning mechanism location, place the gim peg in the through-hole top and let it do the free fall, the cap of the bolt extrudees the lug at whereabouts in-process to make the limiting plate use its self middle part as the axle and rotate towards a direction, the lug is rotatory to the space between backup pad and the positioning seat in, make the cap of the bolt of gim peg can continue the whereabouts, offset until one side with the positioning seat (see fig. 3). Then the limiting plate is reversely rotated, so that the convex block is clamped in the groove, and the limiting block is abutted against one side of the positioning seat (see fig. 4). Under this state, because the stopper supports against one side of positioning seat. The positioning bolt can not move upwards any more, namely the positioning bolt is locked on the positioning seat, so that the to-be-connected piece can be installed on the installation end of the positioning bolt, and the to-be-connected piece can be installed in a positioning mode. On the other hand, when the positioning mechanism is unlocked, the limiting block is manually rotated towards one direction again, so that the convex block is separated from the groove (see fig. 5), the locking between the positioning bolt and the limiting plate can be unlocked, and finally, the positioning bolt can be directly pulled out. The positioning mechanism is simple to operate and can be used without the help of other tools.

Fig. 6 is a schematic structural diagram of the support plate according to the embodiment of the present invention, and as shown in fig. 6, the limiting assembly 3 further includes two support plates 32, the two support plates 32 are disposed on the positioning seat 1 in parallel, and the limiting plate 31 is rotatably installed between the two support plates 32.

In the above embodiment, supporting the limit plate 31 by the two support plates 32 makes the support of the limit plate 31 by the spud 1 more stable.

Illustratively, the support plate 32 has a planar plate-like configuration, and the upper end of the support plate 32 has an arcuate configuration. The limiting plate 31 is also a planar plate-shaped structure, and the protruding blocks 311 and the limiting blocks 312 at the two ends of the limiting plate 31 are both arc-shaped structures. The arc-shaped structure facilitates the rotation of the components. The stopper plate 31 is interposed between the two support plates 32.

Fig. 7 is a top view of the positioning seat according to the embodiment of the present invention, as shown in fig. 7, two supporting plates 32 are respectively provided with a first through hole 321, the middle portion of the limiting plate 31 is provided with a second through hole 313 (see fig. 2), the first through hole 321 and the second through hole 313 are arranged oppositely, and the same connecting bolt 322 is inserted into both the first through hole 321 and the second through hole 313.

In the above embodiment, the connection bolt 322 not only enables the stopper plate 31 to stably rotate around the connection bolt 322, but also facilitates the detachment and installation of the stopper plate 31.

Illustratively, the connecting bolt 322 passes through the two first and second through

holes

321 and 313, and the connecting bolt 322 clamps the limit plate 31 between the two support plates 32 by being engaged with a nut.

Further, the limiting assembly 3 further comprises a backing plate 33, the backing plate 33 is sleeved on two ends of the connecting bolt 322, and the backing plate 33 is clamped between the connecting bolt 322 and the support plate 32.

In the above embodiment, the shim plate 33 can increase the contact area between the connecting bolt 322 and the support plate 32, and prevent the connecting bolt 322 from damaging the support plate 32.

Illustratively, the backing plates 33 are sleeved on both ends of the connecting bolts 322 through intermediate through holes, and the connecting bolts 322 are engaged with nuts to sandwich the backing plates 33 between the connecting bolts 322 and the support plate 32.

Referring again to fig. 1, the cap 21 comprises a head 212, a rod 213 and a pad 214, wherein one end of the rod 213 is connected to the head 212, the other end of the rod 213 is connected to the pad 214, the pad 214 is used to abut against one side of the positioning socket 1, and a groove 211 is formed among the head 212, the rod 213 and the pad 214.

In the above embodiment, the groove 211 is engaged with the projection 311, so that the axial movement of the positioning pin 2 is restricted.

Illustratively, the diameter of the pin 213 is smaller than the diameter of the pin head 212 and the pin pad 214 to form the recess 211. The pad 214 is used to abut against the upper surface of the positioning socket 1.

Further, a pin hole 22 is formed at the mounting end of the positioning bolt 2 along the radial direction of the positioning bolt 2, and a pin (not shown in the figure) is inserted into the pin hole 22.

In the above embodiment, the pin hole 22 and the pin and cap 21 cooperate to limit the axial movement of the positioning bolt 2 in the non-working state, so as to prevent the positioning bolt 2 from being disengaged from the through hole 11 and lost.

Illustratively, the pin may be a cotter pin.

Further, one side of the bump 311 departing from the limiting plate 31 is of an arc-shaped structure.

In the above embodiment, the protrusion 311 has an arc structure to facilitate the compression of the positioning bolt 2, so that no external force is required during the installation of the positioning bolt 2.

Further, the limiting component 3 further comprises a clamping plate 34, the clamping plate 34 is arranged on one end of the supporting plate 32, which is far away from the positioning seat 1, and the clamping plate 34 is located between the protruding block 311 and the limiting block 312.

In the above embodiment, when the limiting plate 31 rotates to contact with the clamping plate 34, the clamping plate 34 can limit the rotation of the limiting block 312, so as to cooperate with the positioning seat 1 to enable the limiting block 312 to rotate within the included angle formed between the positioning seat 1 and the clamping plate 34.

Illustratively, the card 34 is a planar plate-shaped structure, the lower end of the card 34 is fixed on the two support plates 32, and the lower end of the card 34 is further provided with a square groove 341, and the square groove 341 can increase the rotation range of the limit plate 31.

Referring to fig. 2 again, the limiting block 312 is provided with a mounting groove 3121, and the mounting groove 3121 is provided with a magnet block 3122.

In the above embodiment, when the positioning bolt 2 is positioned, the magnet 3122 can increase the contact strength between the limiting block 312 and the positioning seat 1, so as to prevent the limiting block 312 from rotating and finally causing the positioning bolt 2 to loosen.

Exemplarily, when the limiting block 312 and the protrusion 311 are provided, the mass of the limiting block 312 is greater than that of the protrusion 311, so that the limiting plate 31 is not easily rotated counterclockwise around the second through hole 313 under the non-external force, and the positioning bolt 2 can be prevented from being loosened.

Exemplarily, the magnet block 3122 is fixed in the mounting groove 3121 by means of adhesion, which facilitates the mounting and dismounting of the magnet block 3122.

Further, a buffer block 3123 is further disposed on the limiting block 312, and the buffer block 3123 is disposed on one end of the limiting block 312, which is in contact with the positioning seat 1.

In the above embodiment, the buffer block 3123 plays a role of buffering when the limiting block 312 contacts the positioning seat 1, so as to prevent the structural member in the positioning mechanism from being damaged by contact.

Preferably, the buffer block 3123 is a nylon block.

Illustratively, the buffer block 3123 is fixed to the lower end of the limiting block 312 by means of adhesion.

The working process of the positioning mechanism is as follows: fig. 3 is a schematic structural diagram of an uninstalled state of the positioning mechanism according to an embodiment of the present invention, as shown in fig. 3, when the positioning mechanism needs to be positioned, the positioning bolt 2 is placed above the through hole 11 and is allowed to freely fall, and the bolt cap 21 presses the arc structure on the left side of the protrusion 311 in the falling process, so that the limiting plate 31 rotates counterclockwise, and the bolt cap 21 of the positioning bolt 2 can continue to fall until abutting against the upper surface of the positioning seat 1. Fig. 4 is a schematic structural diagram of an installation state of the positioning mechanism provided in the embodiment of the present invention, as shown in fig. 4, when the limiting block 312 rotates to be just lower than the limiting block 34, the limiting block 34 forces the limiting block 312 to rotate clockwise, when the limiting block 312 rotates to abut against the positioning seat 1, the limiting block 312 is buffered by the buffering block 3123, at this time, the protrusion 311 at the other end of the limiting block 31 is just clamped with the groove 211, then the magnet block 3122 is fixed in the mounting groove 3121 of the limiting block 312, in this state, the positioning bolt 2 cannot move upward, that is, the positioning bolt 2 is locked on the positioning seat 1, that is, the installation and the fixation of the positioning bolt 2 are completed without external force, and finally, the to-be-connected component is connected at the installation end of the positioning bolt 2, that is, and the to-be-connected component is positioned. Fig. 5 is a schematic structural diagram of a release state of the positioning mechanism according to an embodiment of the present invention, as shown in fig. 5, when the positioning of the positioning mechanism needs to be released, the connection of the to-be-connected component is released at the mounting end of the positioning bolt 2, the limiting plate 31 is rotated counterclockwise, the magnet block 3122 can be removed if necessary, and the positioning bolt 2 can be pulled out when the limiting block 312 is rotated counterclockwise until the recess 211 is separated from the protrusion 311.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The positioning mechanism is characterized by comprising a positioning seat (1), a positioning bolt (2) and a limiting assembly (3);

the positioning seat (1) is provided with a through hole (11), the mounting end of the positioning bolt (2) is used for penetrating through the through hole (11) and detachably mounting the positioning bolt with a to-be-connected piece, the limiting end of the positioning bolt (2) is provided with a bolt cap (21), the bolt cap (21) is used for abutting against one side of the positioning seat (1), the bolt cap (21) is provided with a groove (211), the groove (211) is circumferentially arranged along the outer edge of the bolt cap (21), the bolt cap (21) comprises a bolt head (212), a bolt rod (213) and a bolt pad (214), one end of the bolt rod (213) is connected with the bolt head (212), the other end of the bolt rod (213) is connected with the bolt pad (214), the bolt pad (214) is used for abutting against one side of the positioning seat (1), and the diameter of the bolt rod (213) is smaller than the diameters of the bolt head (212) and the bolt pad (214), the groove (211) is formed among the bolt head (212), the bolt rod (213) and the bolt pad (214), a pin hole (22) is formed in the mounting end of the positioning bolt (2) along the radial direction of the positioning bolt (2), and a pin is inserted into the pin hole (22);

the limiting assembly (3) comprises a limiting plate (31) and a supporting plate (32), the supporting plate (32) is fixed on the positioning seat (1), a convex block (311) is arranged at one end of the limiting plate (31), a limiting block (312) is arranged at the other end of the limiting plate (31), the middle part of the limiting plate (31) is rotatably arranged at one end of the supporting plate (32) far away from the positioning seat (1) along the axial direction of the positioning bolt (2), a space for containing the convex block (311) to rotate is arranged between one end of the supporting plate (32) far away from the positioning seat (1) and the positioning seat (1), the limiting plate (31), the supporting plate (32) and the bolt cap (21) are all positioned at the same side of the positioning seat, and the convex block (311) is used for freely falling in the through hole (11) when the positioning bolt (2), the limiting plate (31) is driven to rotate under the extrusion of the bolt cap (21), when the convex block (311) is clamped in the groove (211) and the bolt cap (21) abuts against the positioning seat (1), the limiting block (312) abuts against one side of the positioning seat (1), an installation groove (3121) is arranged on the limiting block (312), a magnet block (3122) is arranged on the installation groove (3121),

the limiting block (312) is further provided with a buffer block (3123), and the buffer block (3123) is arranged at one end, contacted with the positioning seat (1), of the limiting block (312).

2. The positioning mechanism according to claim 1, characterized in that the limiting assembly (3) comprises two supporting plates (32), the two supporting plates (32) are arranged in parallel on the positioning socket (1), and the limiting plate (31) is rotatably mounted between the two supporting plates (32).

3. The positioning mechanism according to claim 2, wherein a first through hole (321) is formed in each of the two supporting plates (32), a second through hole (313) is formed in the middle of the limiting plate (31), the first through hole (321) and the second through hole (313) are arranged oppositely, and the same connecting bolt (322) is inserted into each of the first through hole (321) and the second through hole (313).

4. The positioning mechanism according to claim 3, wherein the limiting assembly (3) further comprises a backing plate (33), the backing plate (33) is sleeved on two ends of the connecting bolt (322), and the backing plate (33) is clamped between the connecting bolt (322) and the support plate (32).

5. The positioning mechanism according to any one of claims 1 to 4, wherein the side of the projection (311) facing away from the limiting plate (31) is of an arc-shaped structure.

6. The positioning mechanism according to any of claims 1-4, wherein the stop assembly (3) further comprises a catch plate (34), the catch plate (34) being arranged on an end of the support plate (32) facing away from the positioning socket (1), the catch plate (34) being located between the projection (311) and the stop block (312).