CN115703214A - Positioning jig - Google Patents

Abstract

The invention relates to a positioning jig, comprising: a support platform adapted to move in a vertical direction and used to support at least one object; the bottom of the support platform is provided with rollers; a push seat is located under the support platform and is suitable for For reciprocating movement along a preset path, the pushing seat has a pushing surface that cooperates with the roller, wherein, when the pushing seat performs the reciprocating movement, the roller can be pushed by the pushing surface The surface is pushed to rise or fall under the action of gravity, so that the support platform can move up and down in the vertical direction; at least one set of lateral clamping parts is installed outside the support platform and is suitable for laterally clamping For at least one of said items, said at least one set of lateral clamping portions is provided with a holding portion for limiting the raised position of said at least one item.

Description

Positioning fixture

technical field

The invention relates to the field of mechanical processing, and more specifically, to a positioning jig.

Background technique

When processing plastic products on the production line, the plastic products are generally placed in the positioning mechanism on the workbench, and then the pressure head is used to press the plastic products from top to bottom to position the plastic products. When the pressure head presses down on the plastic product, the plastic product tends to swing from side to side, which easily causes unstable positioning of the plastic product and affects the processing accuracy of the plastic product.

Contents of the invention

The present invention aims to provide a positioning jig, which can effectively prevent deflection of objects during the positioning process and improve the positioning accuracy of the objects.

The positioning jig provided by the present invention includes: a support platform, adapted to move in the vertical direction and used to support at least one object; the bottom of the support platform is provided with rollers; Moving back and forth along a preset path, the pushing seat has a pushing surface that cooperates with the roller, wherein, when the pushing seat is doing the reciprocating movement, the roller can be pushed by the pushing surface and rise or fall under the action of gravity, so that the support table can move up and down in the vertical direction; at least one set of lateral clamping parts is suitable for clamping at least one of the items in the lateral direction, and the at least one set of The lateral clamping portion is provided with a holding portion for limiting the raised position of the at least one item.

Further, the support platform is provided with a positioning mechanism, and the positioning mechanism is used for positioning the article.

Further, the positioning mechanism is detachably connected to the support platform.

Further, the positioning jig also includes a vertical guide mechanism for keeping the supporting platform up and down in the vertical direction.

Further, the at least one set of lateral clamping parts is provided with a clamping block adapted to be in contact with the at least one item and capable of slidingly engaging with the at least one item.

Further, the pressing part is provided with a pressing block.

Further, the preset path extends linearly on the horizontal plane, and the pushing surface includes at least one slope.

Further, the pushing surface is provided with guide grooves that cooperate with the rollers.

Further, the pushing surface includes two inclined surfaces arranged symmetrically, so that the pushing surface has a shape with a high center and low ends.

Further, the pushing surface further includes a first platform located at the high end of the slope, and/or, the pushing surface further includes a second platform located at the low end of the slope.

Further, the positioning jig also includes: a workbench, the workbench is provided with a first slideway, and the first slideway defines the preset path; the bottom of the pushing seat and the first The slideway is slidingly matched; the first power drive mechanism is drivingly connected with the pushing seat so that the pushing seat can reciprocate along the first slideway.

Further, the workbench is also provided with a second slideway, and each set of the lateral clamping parts is slidably matched with the second slideway to clamp the article laterally; the positioning jig also includes At least one second power drive mechanism, each set of the lateral clamping parts is respectively driven by the corresponding second power drive mechanism to move along the second slideway, so as to clamp or release the thing.

Further, each set of the lateral clamping parts includes at least two side plates slidingly fitted with the second slideway.

Further, the preset path extends obliquely, and the pushing surface is a plane.

When the positioning jig provided by the present invention is used to position the article, the article can be placed on the support table and rise under the clamping of the lateral clamping part. When the article rises to the position held by the holding part, the article is immediately stable positioning. Under the clamping action of the lateral clamping part, the object will not deflect during the positioning process, thereby ensuring the accuracy of positioning.

Description of drawings

Fig. 1 schematically shows a perspective view of a positioning jig according to an embodiment of the present invention, wherein an item is placed on a support table;

Fig. 2 schematically shows a perspective view of a positioning jig according to an embodiment of the present invention, wherein an item is clamped by a lateral clamping portion;

Fig. 3 schematically shows a perspective view of a positioning jig according to an embodiment of the present invention, wherein the item is in a positioning state;

Fig. 4 schematically shows a side view of a pushing seat of a positioning jig according to an embodiment of the present invention;

Fig. 5 schematically shows another side view of the pushing seat of the positioning jig according to the embodiment of the present invention.

Detailed ways

1 to 3 show a positioning jig provided according to an embodiment of the present invention, which includes a supporting platform 1 , a pushing seat 2 and at least one set of lateral clamping parts 3 .

The support table 1 is movable in the vertical direction H1 and serves to support one or more objects 9 . The support platform 1 is for example cooperated with a vertical guide mechanism, and maintains its translational movement in the vertical direction by means of the vertical guide mechanism. The vertical guide mechanism can adopt any suitable structure. For example, in some embodiments, the vertical guide mechanism can include a vertical slide rail 18 and a guide hole 50. The vertical slide rail 18 is, for example, fixed together with the support platform 1. Below the support platform 1, the A workbench 5 is provided, and a guide hole 50 is provided on the workbench 5. The sliding cooperation between the vertical slide rail 18 and the guide hole 50 limits the movement of the support platform 1 in the vertical direction. The bottom of the support table 1 is provided with rollers 11, and the number of rollers 11 can be set as required.

The pushing seat 2 is located under the support platform 1 and is suitable for reciprocating movement along a preset path. The pushing seat 2 has a pushing surface 21 that cooperates with the rollers 11 . By reasonably setting the preset path of the push seat 2 and the shape of the push seat 2, when the push seat 2 is driven by the first power drive mechanism (not shown in the figure) to reciprocate along the preset path, the rollers 11 can roll on the pushing surface 21, while the roller 11 can be pushed up by the pushing surface 21 or descend under the action of gravity, so that the supporting platform 1 can move up and down in the vertical direction. In this way, the objects 9 placed on the support platform 1 can rise or fall along with the support platform 1 .

In some embodiments, the support table 1 can also be provided with a positioning mechanism 4 for positioning the object 9 so that the object 9 can be quickly placed in place on the support table 1 . In some embodiments, the positioning mechanism 4 is detachably connected to the support table 1 , for example. Referring to FIG. 1 , the positioning mechanism 4 may be provided with, for example, an installation hole 41 , through which bolts or screws may pass through the installation hole 41 to connect with the supporting platform 1 .

The preferred embodiment of the preset path of the pushing seat 2 and the shape of the pushing seat 2 is provided in this embodiment. For example, the workbench 5 is provided with a first slideway 51 defining a preset path, and the first slideway 51 extends linearly in the horizontal direction H2, for example. The bottom of the push seat 2 is slidably matched with the first slideway 51 and the push seat 2 can be driven by the first power drive mechanism, and the first power drive mechanism provides the force to make the push seat 2 reciprocate along the first slideway 51. power. The first power drive mechanism can take any suitable form, such as various linear drive mechanisms, such as telescopic cylinders. In some embodiments, the pushing surface 21 of the pushing seat 2 includes an inclined surface 210 , and when the pushing seat 2 reciprocates, the roller 11 can roll along the inclined surface 210 and move up and down vertically. In some embodiments, a plurality of buffer springs 56 may be provided between the supporting table 1 and the working table 5 .

Fig. 4 schematically shows an embodiment of the pushing surface 21, and the pushing surface 21 may include an inclined surface 210 located in the middle, a first platform 211 located at the high end of the inclined surface 210, and a second platform 211 located at the low end of the inclined surface 210. Platform 212. In this way, when the roller 11 rises to the position along the inclined plane 210, it can stay on the first platform 211 (at this moment, the article 9 is in a stably positioned position, and the article 9 can be processed). Finally, it can stay on the second platform 212 (at this time, the clamping of the positioning jig to the article 9 can be released, and the processed article 9 can be taken away from the positioning jig).

Fig. 5 schematically shows yet another embodiment of the pushing surface 21, the pushing surface 21 may include two symmetrically arranged inclined surfaces 2101 and 2102, the high ends of the two inclined surfaces 2101 and 2102 transition through the first platform 211, and the two inclined surfaces The lower ends of the two slopes 2101 and 2102 are respectively provided with second platforms 212, so that the pushing surface 21 is in the shape of high in the middle and low at both ends. In this way, the roller 11 can rise to a position along the slope 2101 and stay on the first platform 211 , and then descend to a position along the slope 2102 and stay on the second platform 212 on the right side. On the contrary, the roller 11 can be raised to a position along the slope 2102 to reach the first platform 211 , and then descended to a position along the slope 2101 to reach the second platform 212 on the left.

It should be noted that although in the above embodiment, the first platform 211 and the second platform 212 are respectively provided at the high end and the low end of each slope, in practical applications, the pushing surface 21 may not be provided with the first platform 211 and/or the second platform 212 .

It should be noted that, in order to guide the rolling of the roller 11 , a guide groove (not shown in the figure) cooperating with the roller 11 may be provided on the pushing surface 21 .

It should be noted that, in some other embodiments, the first slideway 51 used to define the preset path can extend obliquely, the push seat 2 is slidably fitted with the first slideway 51 and the push seat 2 can Driven by a power drive mechanism, it moves up or down along the first slide 51. At this time, the pushing surface 21 can be a plane. In this way, when the pushing seat 2 reciprocates along the first slideway 51 , the roller 11 can roll on the pushing surface 21 while rising or falling along with the pushing surface 21 .

The lateral clamping part 3 can be installed on the working platform 5 , for example, and the support table 1 can be raised and lowered relative to the lateral clamping part 3 . Each set of lateral clamping parts 3, for example, can be slidably matched with the second slideway 52 provided on the workbench 5, and driven by a second power drive mechanism (not shown in the figure) to be able to move along the second slideway 52 , so that the article 9 is clamped or released laterally. It can be understood that under the clamping action of the lateral clamping portion 3 , the item 9 will not deflect during the positioning process, thereby ensuring the positioning accuracy of the item 9 . It can be understood that the lateral clamping part 3 can contact the article 9 but not clamp it during the ascension and descent of the article 9 , so as to allow the article 9 to ascend and descend with the support platform 1 . After the item 9 is raised to the position, the lateral clamping part 3 can clamp the item 9 so that the position of the item 9 in the horizontal direction is locked.

The lateral clamping part 3 can have various implementations, for example, it includes jaws or side plates that can move in the horizontal direction along the second slideway 52, and these jaws or side plates play a role in the second power drive mechanism. The bottom can be closed or separated, so that the article 9 can be clamped or released laterally. In some embodiments, each set of side clamping parts 3 may include a first side plate 31 and a second side plate 32 oppositely disposed, and the article 9 is located between them. The second power driving mechanism can be, for example, a screw screw mechanism or other suitable driving mechanism, which drives the first side plate 31 and the second side plate 32 to approach or separate along the vertical second slideway 52 to clamp or Release item 9. In some embodiments, the second slideway 52 may be perpendicular to the first slideway 51 . In other embodiments, each set of lateral clamping parts 3 may include, for example, more side plates, which are arranged laterally around the article 9 and can be driven by the second power drive mechanism along the corresponding first Two slideways 52 slide. It can be understood that, according to different items 9 , the structure of the lateral clamping portion 3 may be different, and the form of the second slideway 52 may also change.

The lateral clamping part 3 can be provided with a holding part 33 for limiting the rising position of the article 9 , and when the article 9 is raised to a position, the holding part 33 is pressed against the article 9 . The support table 1 cooperates with the holding part 33 so that the position of the article 9 in the vertical direction is locked. Referring to FIG. 3 , in some embodiments, the pressing part 33 is provided with a plurality of pressing plates 331 , and each pressing plate 331 is used to apply pressure from top to bottom on different positions of the object 9 . Preferably, the pressing plate 331 may be made of wear-resistant and cushioning materials, for example. In addition, the pressing plate 331 may be detachable for easy replacement.

In some embodiments, the lateral clamping part 3 may be provided with a clamping block 34 through which the lateral clamping part 3 contacts the article 9 . The clamping block 34 is, for example, detachable for easy replacement. The clamping block 34 can be made of wear-resistant and cushioning material, for example.

In some embodiments, the same support platform 1 can be equipped with multiple sets of lateral clamping parts 3, so that one lift of the support platform 1 can drive multiple items 9 to be lifted and lowered in place at the same time, so that multiple items 9 can be simultaneously processing.

The working process of the positioning jig provided in this embodiment will be described in detail below in conjunction with FIGS. 1 to 3:

Referring to Fig. 1, the push seat 2 is at the first end of the first slideway 51, the roller 11 is at the second platform 212, and the first side plate 31 and the second side plate 32 of the lateral clamping part 3 are in the initial state of opening , the item 9 can be easily placed on the support table 1.

Referring to FIG. 2 , the second power driving mechanism drives the first side plate 31 and the second side plate of the lateral clamping portion 3 to approach each other, and the clamping block 34 clamps the article 9 in the lateral direction.

Referring to Fig. 3, the first power drive mechanism drives the push seat 2 to move to the second end of the first slideway 51, the roller 11 moves to the first platform 211 along the inclined plane 210, the support table 1 rises to the position, and the article 9 and the pressing Part 33 abuts against. Afterwards, the lateral clamping part 3 can be controlled to clamp the article 9, and the article 9 is reliably positioned, and the article 9 can be processed at this time.

After the article 9 has been processed, the clamping of the article 9 by the lateral clamping portion 3 can be appropriately loosened, and the first power drive mechanism drives the push seat 2 to move to the first end of the first slideway 51. , the rollers 11 return to the second platform 212 along the inclined plane 210, and the article 9 falls into place along with the support platform 1, and then, the lateral clamping part 3 can be controlled to return to the initial state, that is, the article 9 can be easily moved from the support platform 1 Take it out.

In the positioning jig provided by the embodiment of the present invention, the article 9 is supported by the support platform 1 and can be raised and lowered along with the support platform 1. During the lifting process, the lateral clamping part 3 guides the vertical movement of the article 9 to prevent the article 9 from moving vertically. Deflection occurs during ascent/decline. When the article 9 is raised to the position, the holding part 33 and the support table 1 hold the article 9 in the up and down direction, and the lateral holding part 3 holds the article 9 from the side (such as the horizontal direction), so that the article 9 is reliably positioned .

The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, all possible combinations of the technical features in the above-mentioned embodiments are not described. However, as long as there is no contradiction in the combination of these technical features, should be considered as within the scope of this specification.

The above-mentioned embodiments only express several implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but should not be construed as limiting the patent scope of the invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for the present invention should be based on the appended claims.

Claims (14)

1. A positioning jig is characterized by comprising:

a support table adapted to move in a vertical direction and for supporting at least one article; the bottom of the supporting platform is provided with a roller;

the pushing seat is positioned below the supporting platform and is suitable for reciprocating along a preset path, the pushing seat is provided with a pushing surface matched with the roller, and when the pushing seat reciprocates, the roller can be pushed by the pushing surface to ascend or descend under the action of gravity, so that the supporting platform is lifted in the vertical direction;

at least one set of lateral gripping portions adapted to grip at least one of the articles in a lateral direction, the at least one set of lateral gripping portions being provided with a press grip for limiting a raised position of the at least one article.

2. The positioning jig according to claim 1, wherein the support table is provided with a positioning mechanism for positioning the article.

3. The positioning jig according to claim 2, wherein the positioning mechanism is detachably connected to the support table.

4. The positioning jig according to claim 1, further comprising a vertical guide mechanism for keeping the support table vertically elevated.

5. The positioning fixture of claim 1, wherein the at least one set of lateral clamping portions is provided with clamping blocks adapted to contact and slidably engage the at least one item.

6. The positioning jig according to claim 1, wherein the pressure holding portion is provided with a pressure block.

7. The positioning jig according to any one of claims 1 to 6, wherein the predetermined path extends linearly on a horizontal plane, and the pushing surface includes at least one inclined surface.

8. The positioning fixture according to claim 7, wherein the pushing surface is provided with a guide groove engaged with the roller.

9. The positioning fixture according to claim 7, wherein the pushing surface comprises two inclined surfaces symmetrically arranged, so that the pushing surface has a shape with a high middle part and two low ends.

10. The positioning fixture of claim 7, wherein the pushing surface further comprises a first platform located at a high end of the inclined surface, and/or wherein the pushing surface further comprises a second platform located at a low end of the inclined surface.

11. The positioning jig of claim 7, further comprising:

the workbench is provided with a first slide way, and the first slide way limits the preset path; the bottom of the pushing seat is in sliding fit with the first slideway;

and the first power driving mechanism is in driving connection with the pushing seat so that the pushing seat can do reciprocating motion along the first slide way.

12. The positioning fixture of claim 11,

the workbench is also provided with a second slideway, and each set of the lateral clamping parts is in sliding fit with the second slideway so as to clamp the article in the lateral direction;

the positioning jig further comprises at least one second power driving mechanism, and each set of lateral clamping portion is driven by the corresponding second power driving mechanism to move along the second slide way, so that the article is clamped or released in the lateral direction.

13. The positioning jig of claim 12, wherein each set of the lateral clamping portions comprises at least two side plates in sliding engagement with the second runner.

14. The positioning fixture according to any one of claims 1 to 6, wherein the predetermined path extends obliquely, and the pushing surface is a plane.

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