CN220179135U - Positioning device - Google Patents

Abstract

The utility model provides a self-adaptive positioning device, and relates to the technical field of product positioning and processing. Wherein, this positioner includes mounting bracket and positioning mechanism, positioning mechanism including sliding connection in first baffle and second baffle on the mounting bracket, and the drive first baffle and second baffle are close to each other/drive assembly who keeps away from still includes: and one end of the buffer component is connected with the first baffle plate/the second baffle plate, the other end of the buffer component is connected with the driving component, and the compression deformation direction of the buffer component is the same as the movement direction of the first baffle plate/the second baffle plate. The utility model is convenient for clamping workpieces with different sizes by arranging the compressible buffer components.

Description

Positioning device

Technical Field

The utility model relates to the technical field of product positioning processing, in particular to a self-adaptive positioning device.

Background

In the production and manufacturing process of various products, in order to ensure the quality of finished products, each workpiece needs to be positioned and then processed. The positioning device is a device for positioning and clamping workpieces, and different parameters are required to be set for the existing positioning device aiming at workpieces with different models and different sizes. When each time the production line changes different work pieces, need the manual work to debug positioner at first, waste a large amount of manpowers and time, increased manufacturing cost.

By taking the production process of the linear motor as an example, parts such as a stator bottom plate, a protective cover plate on the stator, a load platform on a rotor and the like are required to be centered and positioned in the assembly process, so that each time the incoming material can be located at a preset position, and accurate material taking and assembly can be realized by matching with subsequent procedures such as a mechanical arm and the like.

The common centering and positioning device in the prior art adopts a pair of clamping plate structures, and the material is pushed to the middle position under the drive of the driving structure, and the stroke of the pair of clamping plates is fixed, so that the effect of positioning the incoming material can be achieved.

However, in practical assembly production of linear motors, it is often necessary to design the linear motors matched with power according to the requirements of customers, which also results in frequent changes in the specifications of the assembled materials of the linear motors, particularly in the length and width dimensions. If the centering and positioning device in the prior art is used, the stroke of a pair of clamping plates is synchronously adjusted according to the size of the incoming material every time the specification of the incoming material changes, so that manpower and time are wasted, otherwise, if the distance between the pair of clamping plates is too large, accurate centering cannot be realized, and if the distance between the pair of clamping plates is too small, the incoming material is easily damaged.

Disclosure of Invention

Aiming at the technical problems, the utility model provides a positioning device which is convenient for clamping workpieces with different sizes by arranging a compressible buffer assembly. The technical scheme is as follows:

the utility model specifically provides a positioning device, which comprises a mounting frame and a positioning mechanism, wherein the positioning mechanism comprises a first baffle plate and a second baffle plate which are connected to the mounting frame in a sliding way, a driving assembly for driving the first baffle plate and the second baffle plate to be close to/far away from each other, and the positioning mechanism further comprises: and one end of the buffer component is connected with the first baffle plate/the second baffle plate, the other end of the buffer component is connected with the driving component, and the compression deformation direction of the buffer component is the same as the movement direction of the first baffle plate/the second baffle plate.

Further, the positioning mechanism further comprises a mounting seat, the driving assembly is in driving connection with the mounting seat, the first baffle plate/the second baffle plate which are fixedly connected with the buffer assembly are in sliding connection with the mounting seat, one end of the buffer assembly is connected with the first baffle plate/the second baffle plate, and the other end of the buffer assembly is connected with the mounting seat.

Further, the positioning mechanism comprises two buffer components, one ends of the two buffer components are respectively connected with the first baffle and the second baffle, and the other ends of the two buffer components are respectively connected with the driving component.

Further, the buffer component is made of elastic materials, and the extending and contracting direction of the buffer component is the same as the moving direction of the first baffle plate/the second baffle plate.

Further, the positioning mechanism further comprises a start-stop assembly connected with the driving assembly through a signal, the start-stop assembly comprises a first detection unit, and when the first detection unit detects that the buffer assembly is subjected to compression deformation, the start-stop assembly sends out a stop instruction to the driving assembly.

Further, the start-stop assembly further comprises a second detection unit, and when the second detection unit detects that a workpiece is placed between the first baffle and the second baffle, the start-stop assembly sends out a start-working instruction to the driving assembly.

Further, the device further comprises a supporting seat which is arranged on the mounting frame and used for bearing the workpiece, the first baffle plate and the second baffle plate are arranged at two opposite ends of the supporting seat, and the driving assembly drives the first baffle plate and the second baffle plate to be close to or far away from each other by taking the supporting seat as the center.

Further, on the motion path of the first baffle and the second baffle, through holes are formed in the supporting seat perpendicular to the surfaces of the supporting seat, and the first baffle and the second baffle penetrate through the through holes.

Further, the device comprises at least two positioning mechanisms which are arranged at different positions of the supporting seat.

Further, structures matched with the side walls of the workpieces are respectively arranged at one ends, close to each other, of the first baffle plate and the second baffle plate.

The utility model has the beneficial effects that:

firstly, positioner can be applicable to the work piece of different models, different sizes, when changing into the work piece of great size, need not artifical debugging positioner in advance, set up different parameters, after first baffle and second baffle are in the position centre gripping new work piece of the size of corresponding new work piece, drive assembly utilized compression set to offset by buffer assembly to the excessive driving force of first baffle and second baffle, reduced because of the too little possibility that leads to the crushing work piece in interval between first baffle and the second baffle, the work piece can realize accurate centering location, the purpose of the different size work piece of positioner self-adaptation has been realized, manpower and time have been saved, manufacturing cost has been practiced thrift.

Secondly, the positioning device utilizes the elastic force of the buffer assembly to firmly clamp the workpiece between the first baffle and the second baffle, so that the probability of deviation of the workpiece processing position caused by changing the position of the workpiece by external force in subsequent processing is reduced, and the final yield is improved.

Finally, the positioning device utilizes the monitoring of the start-stop assembly and the signal transmission to timely drive the driving assembly to stop working, so that the buffer assembly is prevented from generating larger compression deformation, and further, larger elastic force is generated on the second baffle, the probability that the workpiece is crushed by the overlarge elastic force is reduced, and the reliability of the positioning device is improved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings that are required to be used in the description of the embodiments of the present utility model will be briefly described below.

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is a schematic view of the workpiece of FIG. 1 after placement;

FIG. 3 is a schematic diagram of another embodiment;

FIG. 4 is a schematic structural view of the positioning mechanism;

fig. 5 is a partial schematic view of the positioning mechanism.

The same reference numbers will be used throughout the drawings to refer to identical or similar parts or components.

10. A mounting frame;

20. a positioning mechanism; 21. a first baffle; 22. a second baffle; 23. a drive assembly; 24. a buffer assembly; 25. a mounting base; 261. a first detection unit; 262. a second detection unit;

30. a support base; 31. a through hole;

40. a workpiece.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings. Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout, or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present specification, the terms "embodiment," "present embodiment," "in one embodiment," and the like, if used, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples; furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present specification, the terms "connected," "mounted," "secured," "disposed," "having," and the like are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of this specification, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In one embodiment, as shown in fig. 1, a positioning device comprises a mounting frame 10 and a positioning mechanism 20, wherein the positioning mechanism 20 comprises a first baffle 21, a second baffle 22, a driving assembly 23 and a buffer assembly 24, the first baffle 21 and the second baffle 22 are slidably connected to the mounting frame 10, and the driving assembly 23 is used for driving the first baffle 21 and the second baffle 22 to be close to each other or far away from each other. One end of the buffer assembly 24 is connected with the second baffle 22, the other end of the buffer assembly 24 is connected with the driving assembly 23, the first baffle 21 is connected with the driving assembly 23 through the buffer assembly 24, and the driving assembly 23 provides driving force to the second baffle 22 through the buffer assembly 24. The direction of compression deformation of the damper assembly 24 is the same as the direction of movement of the second barrier 22.

In use, the stroke of the drive assembly 23 to drive the movement of the first and second baffles 21, 22 is preset to match the minimum size of the workpiece 40. When the workpiece 40 is replaced with a workpiece 40 of a larger size, the workpiece 40 is placed between the first barrier 21 and the second barrier 22, the driving assembly 23 starts to operate, and the driving assembly 23 drives the first barrier 21 and the second barrier 22 to approach each other. When the first baffle 21 and the second baffle 22 respectively abut against opposite ends of the workpiece 40, the second baffle 22 cannot move continuously, the driving assembly 23 continues to apply driving force to the buffer assembly 24, and the buffer assembly 24 deforms in a compression manner until the output end of the driving assembly 23 reaches a preset position. At this time, the distance between the first baffle 21 and the second baffle 22 is matched with the size of the workpiece 40, the workpiece 40 can be accurately centered, and meanwhile, the excessive driving force of the driving assembly 23 to the first baffle 21 and the second baffle 22 is counteracted by the buffer assembly 24 through compression deformation, so that the possibility of crushing the workpiece 40 due to the fact that the distance between the first baffle 21 and the second baffle 22 is too small is reduced.

The positioning device in this embodiment is provided with the buffer assembly 24 between the second baffle 22 and the driving assembly 23, so that the positioning device can be suitable for workpieces 40 with different models and sizes, and the positioning device does not need to be manually debugged and set different parameters before the workpieces 40 are replaced each time, so that the purpose of self-adapting the positioning device to the workpieces 40 with different sizes is achieved, the labor and time are saved, and the production cost is saved.

In other embodiments, one end of the buffer assembly 24 may be connected to the first baffle 21, and the other end of the buffer assembly 24 may be connected to the driving assembly 23, and the same may be applied to workpieces 40 of different sizes. In other embodiments, the positioning mechanism 20 includes two buffer assemblies 24, one ends of the two buffer assemblies 24 are respectively connected to the first baffle 21 and the second baffle 22, and the other ends of the two buffer assemblies 24 are respectively connected to the driving assembly 23. The excessive driving forces of the driving assembly 23 to the first baffle 21 and the second baffle 22 are counteracted by the compression deformation of the two buffer assemblies 24, and the deformation range of the two buffer assemblies 24 is larger, so that the device is applicable to the workpiece 40 with larger size variation, and the application range is wider.

In one embodiment, the positioning mechanism 20 further includes a mounting seat 25, the driving assembly 23 is connected to the mounting seat 25 in a driving manner, the second baffle 22 is slidably connected to the mounting seat 25, and one end of the buffer assembly 24 is connected to the second baffle 22, and the other end is connected to the mounting seat 25. Before the second baffle 22 abuts against the workpiece 40, the driving assembly 23 drives the mounting seat 25 to move, and the mounting seat 25 drives the second baffle 22 and the buffer assembly 24 to move together; when the first baffle 21 and the second baffle 22 are respectively abutted against two ends of the workpiece 40, the driving assembly 23 drives the mounting seat 25 to move continuously, the buffer assembly 24 deforms in a compression mode, and the second baffle 22 slides on the mounting seat 25.

In one embodiment, the buffer assembly 24 is made of elastic material, such as a telescopic spring, and the telescopic direction of the buffer assembly 24 is the same as the moving direction of the second baffle 22. Therefore, after the buffer assembly 24 is compressed and deformed under the driving of the driving assembly 23, the elastic force of the buffer assembly 24 drives the second baffle 22 to approach the first baffle 21, so that the workpiece 40 can be stably clamped between the first baffle 21 and the second baffle 22 under the action of the elastic force, the probability that the position of the workpiece 40 is changed by external force in subsequent processing, and the deviation occurs in the processing position of the workpiece 40 is reduced, and the final yield is improved.

In one embodiment, the positioning mechanism 20 further includes a start-stop component connected to the driving component 23 by a signal, where the start-stop component includes a first detection unit 261, and when the first detection unit 261 detects that the buffer component 24 is compressively deformed, the start-stop component sends an instruction to stop working to the driving component 23.

When the first detecting unit 261 detects that the second baffle 22 and the mounting seat 25 slide relatively, the start-stop assembly sends out a stop working instruction to the driving assembly 23, the driving assembly 23 stops working, and the buffer assembly 24 is prevented from being subjected to larger compression deformation, so that larger elastic force is generated on the second baffle 22, the probability that the workpiece 40 is crushed by the excessive elastic force is reduced, and the reliability of the positioning device is improved.

Specifically, the first detection unit 261 can learn whether the cushion assembly 24 is compressively deformed by detecting the relative sliding between the second barrier 22 and the mount 25. A blocking piece is provided on the mounting seat 25 at an end close to the first blocking plate 21. When the spring is in a free state, the second baffle 22 covers the baffle on the mounting seat 25, and the first detection unit 261 cannot detect the baffle; after the second baffle 22 slides relative to the mounting seat 25 in a direction away from the first baffle 21, the baffle slides out of the coverage area of the first baffle, and the first detection unit 261 detects the baffle.

In one embodiment, the start-stop assembly further includes a second detection unit 262, and when the second detection unit 262 detects that the workpiece 40 is placed between the first baffle 21 and the second baffle 22, the start-stop assembly issues a start instruction to the driving assembly 23. The second detection unit 262 can improve the automation degree of the positioning device, and the first detection unit 261 is matched to realize automatic starting and stopping of the positioning device, so that labor and time are further saved, the efficiency is improved, and the cost is saved. The first detecting unit 261 and the second detecting unit 262 may be a mechanical in-place sensor, a photoelectric in-place sensor, or the like.

In one embodiment, as shown in fig. 1 and 2, the positioning device further includes a support base 30 disposed on the mounting frame 10 and used for carrying the workpiece 40, and the first baffle 21 and the second baffle 22 are disposed at opposite ends of the support base 30, and the driving assembly 23 drives the first baffle 21 and the second baffle 22 to approach or separate from each other centering on the support base 30. The upstream production line can place the workpiece 40 on the supporting seat 30, and the positioning device clamps and positions the workpiece 40 without other auxiliary devices for supporting the workpiece 40, so that the structure is simple.

In one embodiment, on the moving path of the first and second shutters 21 and 22, through holes 31 are formed in the support base 30 perpendicularly to the surface thereof, and the first and second shutters 21 and 22 pass upward through the through holes 31 and are used to clamp the workpiece 40 on the fixed support plate. The length of the supporting seat 30 in this embodiment may be equal to or greater than the sum of the movement paths of the first and second baffles 21 and 22, the supporting seat 30 may be larger in size, and the workpiece 40 may be supported on a larger area of the upper surface, so that when the workpiece 40 is larger in size or regular in shape, the workpiece 40 is not easily dropped or damaged due to unstable center of gravity.

In one embodiment, as shown in FIGS. 1 and 2, the positioning device includes at least two positioning mechanisms 20 disposed in different orientations of the support base 30. The two positioning mechanisms 20 can respectively position and clamp the workpiece 40 in different directions, so that the stability of the workpiece 40 in different directions is ensured. Specifically, the two positioning mechanisms 20 may be respectively located in two mutually perpendicular orientations of the supporting seat 30, and this arrangement may limit the position of the workpiece 40 to a greater extent, so as to save more cost. In other embodiments, the number and location of positioning mechanisms 20 may be set according to the particular shape of workpiece 40.

In one embodiment, the ends of the first baffle 21 and the second baffle 22 that are adjacent to each other are each provided with a structure that fits the side wall of the workpiece 40. For example, when the workpiece 40 is a rectangular cover plate, a pair of side edges of the cover plate are provided with turned edges, the first baffle 21 and the second baffle 22 for clamping the side edges can be vertical flat plates, the first baffle 21 and the second baffle 22 for clamping the other pair of side edges of the cover plate can be inverted L-shaped plates, and the positioning effect on the rectangular cover plate is better.

In one embodiment, the protection pads are respectively installed at the ends of the first baffles 21 and the second baffles 22, which are close to each other, and the protection pads are made of rubber or sponge, so that on one hand, the friction force between the baffles and the workpiece 40 can be increased, the workpiece 40 is clamped more firmly by the baffles, and on the other hand, the protection pads have certain elasticity, so that the probability of damage to the workpiece 40 due to overlarge clamping force of the baffles can be reduced.

In one embodiment, as shown in fig. 3, 4 and 5, the drive assembly 23 includes a drive member, a belt, and a pair of pulleys, the belt being tensioned against the pair of pulleys, the drive member driving one of the pair of pulleys in rotation, the pulley driving the belt and the other pulley in rotation. The first baffle 21 and the mounting seat 25 are respectively connected to two sides of a connecting line of the belt corresponding to the pair of belt wheels in a driving manner, specifically, the first baffle 21 and the mounting seat 25 are respectively fixedly connected to the belt, the belt is redirected after passing through the belt wheels, and accordingly the belt wheels drive the first sliding block and the second sliding block to be close to or far away from each other through the belt.

The embodiments have been described so as to facilitate a person of ordinary skill in the art in order to understand and apply the present technology, it will be apparent to those skilled in the art that various modifications may be made to these examples and that the general principles described herein may be applied to other embodiments without undue burden. Therefore, the present application is not limited to the above embodiments, and modifications to the following cases should be within the scope of protection of the present application: (1) the technical scheme of the utility model is taken as the basis and combined with the new technical scheme implemented by the prior common general knowledge, and the technical effect produced by the new technical scheme is not beyond that of the utility model; (2) equivalent replacement of part of the characteristics of the technical scheme of the utility model by adopting the known technology produces the technical effect the same as that of the utility model; (3) the technical scheme of the utility model is taken as a basis for expanding, and the essence of the expanded technical scheme is not beyond the technical scheme of the utility model; (4) equivalent transformation made by the content of the specification and the drawings of the utility model is directly or indirectly applied to other related technical fields.

Claims (10)

1. The utility model provides a positioner, includes mounting bracket and positioning mechanism, positioning mechanism include sliding connection in first baffle and second baffle on the mounting bracket, and drive first baffle and second baffle are close to each other/drive assembly who keeps away from, its characterized in that still includes:

and one end of the buffer component is connected with the first baffle plate/the second baffle plate, the other end of the buffer component is connected with the driving component, and the compression deformation direction of the buffer component is the same as the movement direction of the first baffle plate/the second baffle plate.

2. The positioning device of claim 1 wherein said positioning mechanism further comprises a mounting base, said drive assembly drivingly connected to said mounting base, said first/second baffle fixedly connected to said cushioning assembly being slidably connected to said mounting base, one end of said cushioning assembly being connected to said first/second baffle and the other end being connected to said mounting base.

3. The positioning device of claim 1, wherein the positioning mechanism comprises two buffer assemblies, one ends of the two buffer assemblies are respectively connected with the first baffle plate and the second baffle plate, and the other ends of the two buffer assemblies are respectively connected with the driving assembly.

4. The positioning device as set forth in claim 1, wherein said buffer member is made of elastic material and has a telescoping direction identical to a moving direction of said first/second shutters.

5. The positioning device of any of claims 1-4, wherein the positioning mechanism further comprises a start-stop assembly signally connected to the drive assembly, the start-stop assembly comprising a first detection unit, the start-stop assembly issuing a stop command to the drive assembly when the first detection unit detects compression set of the buffer assembly.

6. The positioning device of claim 5 wherein said start-stop assembly further comprises a second detection unit, said start-stop assembly issuing a start-up command to said drive assembly when said second detection unit detects a workpiece disposed between said first and second baffles.

7. The positioning device of any of claims 1-4 further comprising a support base disposed on said mounting frame for carrying a workpiece, said first and second baffles being disposed at opposite ends of said support base, said drive assembly driving said first and second baffles toward or away from each other about said support base.

8. The positioning device of claim 7 wherein said support base defines a through hole perpendicular to a surface thereof in a path of movement of said first and second baffles, said first and second baffles passing through said through hole.

9. The positioning device of claim 7 including at least two positioning mechanisms disposed in different orientations of said support base.

10. Positioning device according to any of the claims 6 or 8-9, wherein the ends of the first and second baffles, which are close to each other, are provided with a structure adapted to the side wall of the work piece, respectively.