Movable jig capable of adjusting distance between clamped objects

Abstract

The invention provides a movable jig capable of adjusting the distance between clamped objects, which comprises a base, a plurality of embedded claws and at least one linear driver, the embedded claws and the linear driver are arranged on the base, the base is provided with a multi-shaft carrier for hanging, the linear driver provides two linear powers in opposite directions, and the linear powers are respectively in direct and indirect transmission connection with the embedded claws. Therefore, in the moving process that the embedded claw captures and places the multiple objects, the relative distance between the multiple objects can be adjusted so as to adapt to batch object carrying when the material taking distance and the material placing distance are different.

Description

Technical Field

[0001] The present invention relates to a jig for simultaneously picking up, moving and placing a plurality of clamped objects, and particularly to a mobile jig for adjusting the spacing between the clamped objects. Background Art

[0002] For multi-axis handlers (such as robots) or other multi-axis mobile devices applied to point-to-point transfer of objects, according to the types and quantities of objects to be handled, a jig for picking up, moving and placing the objects is generally mounted.

[0003] Furthermore, in the production line of general objects, it is common to arrange a multi-axis handler between a material taking end and a material placing end, and by means of a plurality of clamping jaws with opening and closing capabilities arranged on the jig, to pick up a plurality of the objects at one time from the material taking end and move them to the material placing end for the next process.

[0004] Based on the general understanding of the automation of the object production line, a feeding tray is generally applied at the material taking end of the production line to carry a plurality of the objects, and the feeding tray must be planned with neat grids having the same material taking spacing to accommodate a plurality of the objects, so as to facilitate the accurate picking up of a plurality of the objects on the feeding tray by a plurality of the clamping jaws. Moreover, a discharging tray is generally also applied at the material placing end of the production line to provide a plurality of the objects for placement, and the discharging tray must also be planned with neat grids having the same material placing spacing according to the requirements of the next process to provide a plurality of the objects for placement, so as to facilitate the accurate placement of a plurality of the objects picked up by the clamping jaws on the discharging tray at one time.

[0005] However, since the material taking spacing on the above-mentioned feeding tray and the material placing spacing on the discharging tray often vary due to different process requirements, the jig on the multi-axis handler often affects its point-to-point transfer efficiency due to the difference between the material taking spacing and the material placing spacing during the process of moving a plurality of the objects.

[0006] In the face of this problem, the jig on the existing multi-axis handler usually can only pick up one object at a time between the feeding tray and the discharging tray for point-to-point handling and placement; or a material position adjustment area station is added between the feeding tray and the discharging tray, so that the jig first moves a plurality of the objects to the material position adjustment area station for adjustment to the same material placing spacing before continuing to move a plurality of the objects to the discharging tray for placement. Moreover, the above-mentioned moving method is very time-consuming, so it is not conducive to the improvement of the production rate and needs to be improved urgently.

[0007] In addition, the fixtures on existing multi-axis handlers may have the technology to adjust the positions of multiple clamped objects, but their structures are generally too complex, thus increasing the burden during the point-to-point movement of the multi-axis handler carrying the fixture. Therefore, improvements are needed. Summary of the Invention

[0008] In view of the current situation of the above-mentioned existing technologies, the purpose of the present invention is to provide a mobile fixture capable of adjusting the spacing between clamped objects.

[0009] The present invention provides a mobile fixture capable of adjusting the spacing between clamped objects, including: a base, a plurality of clamping claws having the ability to open and close, and at least one linear drive; the base is used for mounting on a multi-axis handler, and the base forms a base surface. The plurality of clamping claws are at least arranged in pairs at intervals along the straight line and movably disposed on the base surface. At least one linear drive is disposed on the base and provides linear power in two opposite directions to respectively drive and connect the paired clamping claws; wherein, each paired clamping claws includes an active clamping claw and a driven clamping claw spaced apart along the straight line. A pull rod is fixedly disposed on the active clamping claw along the straight line. The pull rod has a pushing portion formed by extending along the straight line. At least one linear drive drives the paired active clamping claws and the pull rod to move a total stroke in opposite directions along the straight line, and pulls the driven clamping claw to move a driven stroke through the pushing portion, wherein the moving distance of the driven stroke is completed within the total stroke.

[0010] In a further embodiment, it further includes:

[0011] For the mobile fixture capable of adjusting the spacing between clamped objects, wherein: the base is configured with an adapter, and the multi-axis handler mounts the fixture via the adapter.

[0012] For the mobile fixture capable of adjusting the spacing between clamped objects, wherein: the driven clamping claws are located on the relatively inner side of the base surface and are adjacent to each other, and the active clamping claws are located on the relatively outer side of the base surface and are spaced apart from the driven clamping claws and away from each other.

[0013] For the mobile fixture capable of adjusting the spacing between clamped objects, wherein: the base surface is paired with an even number of slide rails, and the active clamping claws and the driven clamping claws are respectively slidably disposed on the base surface via the slide rails.

[0014] For the mobile fixture capable of adjusting the spacing between clamped objects, wherein: the pull rod passes through the driven clamping claw, and the pushing portion is formed at a position where it can be touched beside the driven clamping claw.

[0015] For the mobile fixture capable of adjusting the spacing between clamped objects, wherein: the active clamping claw is slidably disposed on the slide rail via an active slide seat, and the driven clamping claw is slidably disposed on the slide rail via a driven slide seat.

[0016] The movable jig for adjusting the distance between clamped objects, wherein: the driven clamping claws are provided for the pull rod to pass through by means of the driven sliding seat, so that the pushing part is formed at a touchable position beside the driven sliding seat.

[0017] The movable jig for adjusting the distance between clamped objects, wherein: within the total stroke of driving each of the active clamping claws and each of the pull rods by at least one of the linear drivers, there is an active stroke, the total stroke is the sum of the distances of the active stroke and the driven stroke, and each of the driven clamping claws is excluded from being pulled by each of the pull rods and following the movement within the active stroke of the movement of each of the active clamping claws and each of the pull rods.

[0018] The movable jig for adjusting the distance between clamped objects, wherein: the distances of the active stroke and the driven stroke are the same.

[0019] The movable jig for adjusting the distance between clamped objects, wherein: the relative distance between each of the active clamping claws and each of the driven clamping claws remains consistent before and after the movement.

[0020] The movable jig for adjusting the distance between clamped objects, wherein: the plurality of the clamping claws further includes a positioning clamping claw independently fixed on the base surface along the straight line, and the plurality of pairs of the clamping claws are arranged at intervals along the straight line on both sides of the positioning clamping claw.

[0021] The movable jig for adjusting the distance between clamped objects, wherein: the positioning clamping claw is located at intervals between two adjacent driven clamping claws.

[0022] The movable jig for adjusting the distance between clamped objects, wherein: within the total stroke of driving each of the active clamping claws and each of the pull rods by at least one of the linear drivers, there is also an active stroke, the total stroke is the sum of the distances of the active stroke and the driven stroke, and each of the driven clamping claws is excluded from being pulled by each of the pull rods and following the movement within the active stroke of the movement of each of the active clamping claws and each of the pull rods.

[0023] The movable jig for adjusting the distance between clamped objects, wherein: the distance of the driven stroke is one half of the active stroke.

[0024] The movable jig for adjusting the distance between clamped objects, wherein: the relative distances between each of the active clamping claws, each of the positioning clamping claws and each of the driven clamping claws remain consistent before and after the movement.

[0025] According to the above embodiments, the effects produced by the present invention include: for the fixture used for moving the carried objects, during the process of batch extracting, transporting and placing a plurality of objects, it can automatically adjust the relative spacing between the plurality of objects during the transportation process according to the placement spacing of the plurality of objects at the material taking end and the placement spacing of the plurality of objects planned at the material placing end, so as to facilitate overcoming the problem that the spacing between the material taking and placing slots at the material taking end and the material placing end of the plurality of battery cells is inconsistent, and thereby improve the handling and transfer efficiency of the plurality of objects by the fixture.

[0026] For this reason, please further refer to the accompanying drawings and elaborate on the preferred embodiments of the present invention as follows. Description of the Drawings

[0027] Figure 1 is a top view schematic diagram of an object production line.

[0028] Figure 2 is Figure 1 a schematic diagram of the object grids on the shown feeding tray and discharging tray.

[0029] Figure 3 is a three-dimensional external view of the fixture of the present invention.

[0030] Figure 4 is Figure 3 a side view schematic diagram of

[0031] Figure 5 is Figure 3 a top view schematic diagram of

[0032] Figure 6a is Figure 3 a front view schematic diagram of

[0033] Figures 6b to 6c In sequence are Figure 6a action explanatory diagrams of the successive spreading apart of multiple clamping claws in

[0034] Description of the Reference Numerals: 10 - material taking end; 11 - feeding tray; 12 - feeding grid; 20 - material placing end; 21 - discharging tray; 22 - placing grid; 30 - object; 40 - multi-axis transporter; 50 - fixture; 51 - base; 510 - base surface; 52 - linear driver; 521 - active sliding seat; 522 - driven sliding seat; 53 - adapter; 60 - clamping claw; 61 - first pair of clamping claws; 62 - second pair of clamping claws; 611, 621 - active clamping claws; 612, 622 - driven clamping claws; 63 - positioning clamping claw; 64 - pull rod; 641 - pushing portion; H1 - material taking spacing; H2 - placing spacing; L - straight line; S - total stroke; S1 - active stroke; S2 - driven stroke. Detailed Embodiments

[0035] To fully illustrate the feasibility of the present invention, first please refer toFigure 1 , it is disclosed that on an object production line, there is a material taking end 10 and a material placing end 20, and a multi-axis handler 40 is arranged between the material taking end 10 and the material placing end 20. Among them, a feeding tray 11 is placed at the material taking end 10, and a discharging tray 21 is placed at the material placing end 20; a plurality of feeding cells 12 for accommodating a plurality of objects 30 are equally spaced on the feeding tray 11, and a plurality of placing cells 22 for placing a plurality of the objects 30 are equally spaced on the discharging tray 21; a jig 50 is mounted on the multi-axis handler 40, which is used to pick up and transfer a plurality of the objects 30 in the plurality of feeding cells 12 to the plurality of placing cells 22 for placement at one time.

[0036] Please continue to refer to Figure 2 , it is disclosed that Figure 1 between the plurality of feeding cells 12 of the feeding tray 11 in [reference] respectively has a relative material taking spacing H1, between the plurality of placing cells 22 of the discharging tray 21 respectively has a relative placing spacing H2, and the material taking spacing H1 and the placing spacing H2 are not the same. Therefore Figure 1 as shown in [reference], after the jig 50 picks up a plurality of the objects 30 from the plurality of feeding cells 12 at one time, and during the process of transferring a plurality of the objects 30 or before placing a plurality of the objects 30, a position adjustment process must be carried out so that the relative spacing between a plurality of the objects 30 is adjusted from the material taking spacing H1 to the placing spacing H2, so as to facilitate placing a plurality of the objects 30 in the plurality of placing cells 22 of the discharging tray 21.

[0037] Based on the above requirements, please further refer to Figures 3 to 5 and Figure 6a , where Figure 3 it is disclosed the three-dimensional structural state of the jig 50, Figure 4 and Figure 5 respectively disclose Figure 3 the side view and top view structural states of the jig 50 as shown in [reference], Figure 6a then reveals Figure 3 the front view structural state of the jig 50 as shown in [reference], and it is explained that the present invention relies on a plurality of clamping claws 60 configured on the jig 50 for adjusting the spacing of the clamped objects 30, and a plurality of the clamping claws 60 can be made of commercially available cylinder-type claw devices, so that each of the clamping claws 60 has the ability to open and close to clamp and release the object 30, and is used to Figure 1 pick up a plurality of the objects 30 from the plurality of feeding cells 12 as shown in [reference] at one time, and transfer a plurality of the objects 30 to the plurality of placing cells 22 for placement.

[0038] From Figure 3It can be known that the jig 50 includes a base 51, and a connector 53 is disposed on the top surface of the base 51 for providing a multi-axis handler 40 to mount the jig 50; wherein, the connector 53 can be made in a form with a flange connection end to facilitate adaptation to various multi-axis handlers 40 such as a robot for mounting.

[0039] Please also match with Figure 5 It can be seen that Figure 3 a base surface 510 is formed by extending along a straight line L at the bottom of the shown base 51, and a plurality of the clamping claws 60 are arranged on the base surface 510 at intervals and movably in at least two-by-two paired manners. Figure 3 In the shown embodiment, at least two-by-two paired means including a first pair of clamping claws 61 and a second pair of clamping claws 62, and the first pair of clamping claws 61 includes a driving clamping claw 611 and a driven clamping claw 612 spaced apart on the straight line L, and the second pair of clamping claws 61 also correspondingly includes a driving clamping claw 621 and a driven clamping claw 622 spaced apart on the straight line L; the driving clamping claw 621 is located on the relatively outer side of the base surface 510 and is spaced apart from the driving clamping claw 621, and the driven clamping claws 622 are located on the relatively inner side of the base surface 510 and are adjacent to each other. Further, the number of the driven clamping claws 612 and 622 in the first pair of clamping claws 61 and the second pair of clamping claws 62 can be a single one (as Figure 3 shown) or multiple (not shown).

[0040] Figure 3 It can also be learned that two linear drivers 52 are disposed on the top surface of the base 51 to provide linear powers in two opposite directions to respectively drive and connect the plurality of the clamping claws 60 arranged in pairs and movably; wherein, the linear driver 52 can be made of a commercially available single-headed push-rod type pneumatic cylinder. On the other hand, only a single linear driver (not shown) can also be disposed on the top surface of the base 51. In this case, another commercially available double-headed reverse push-rod type pneumatic cylinder can be selected as the single linear driver, which can also provide the linear powers in the two opposite directions to respectively drive the plurality of the clamping claws 60 arranged in pairs and movably, and is hereby described.

[0041] More specifically, Figure 6a it can be learned that as Figures 3 to 5 shown, the push-rod heads of the two linear drivers 52 are respectively drivingly connected with a driving slide block 521, Figure 6a wherein, the linear driver 52 on the right side of the drawing is used as an example to show the driving connection with the driving slide block 521 on the left side. Correspondingly, Figure 6a the other linear driver 52 on the left side is drivingly connected with the driving slide block 521 on the right side in the same configuration with the opposite direction. In addition, Figure 4 and Figure 6aIt is also disclosed that the base surface 510 is provided with an even number of slide rails 54 extending along the direction of the straight line L in a paired manner, and two of the active sliding seats 521 are respectively slidably assembled on the slide rails 54, and the active claws 611 and 621 are respectively fixed to the bottoms of the active sliding seats 521, and thus can be telescopically driven by the linear actuator 52 along the direction of the straight line L to slide. Furthermore, Figure 6a It is also disclosed that an even number of the slide rails 54 are respectively slidably assembled with a driven sliding seat 522, and the driven claws 612 and 622 are respectively fixed to the bottoms of the driven sliding seats 522. Therefore, the number of the driven sliding seats 522 should be equal to that of the driven claws 612 and 622.

[0042] Also, Figure 6a It is also disclosed that the active claws 611 and 621 are respectively fixed with at least one pull rod 64 along the straight line L via the active sliding seats 521, and the pull rod 64 has a pushing portion 641 formed by extending along the straight line L; in an implementation of saving space, the driven sliding seat 522 or the driven claws 612, 622 can be provided with a through hole or a bushing along the direction of the straight line L to provide the rod body of the pull rod 64 to pass through the driven sliding seat 522 or the driven claws 612, 622, and make the pushing portion 641 located at a position where it can be touched beside the driven claw; or, the rod body of the pull rod 64 and the pushing portion 641 can also be adjacently located outside the driven sliding seat 522 or the driven claws 612, 622, which also belongs to the scope of the transformable application of the present invention. In the case where the number of the driven claws 612, 622 is respectively multiple, the number of the pull rods 64 fixed to each of the active sliding seats 521 and the pushing portions 641 formed by their extensions must be equal to the number of each pair of the driven claws 612, 622. Among them, the function of the pushing portion 641 is that after the pull rod 64 is linked by the active sliding seat 521 or the active claws 611, 621 and moves a distance, it can contact the driven sliding seat 522 or the driven claws 612, 622, and then link the driven sliding seat 522 and the driven claws 612, 622 to move synchronously another distance (as described in detail later).

[0043] In addition to the above configuration, in the present invention, in addition to being able to be movably configured on the base surface 510 in pairs at least two by two, the plurality of claws 60 can also include a positioning claw 63 fixedly disposed alone on the base surface 510, so that the positioning claw 63 is spaced along the straight line L and located between the two driven claws 612 and 622; or, a plurality of pairs of the claws 60 can be spaced along the straight line L and disposed on both sides of the positioning claw 63. The positioning claw 63 can be added according to the requirement that the number of the objects 30 batch-moved at one time by the jig 50 is odd; on the contrary, if the number of the objects 30 batch-moved at one time by the jig 50 is even, it is not fixed on the base surface 510.

[0044] According to the above configuration, then please refer to in combination Figures 6a to 6c , where:

[0045] Figure 6a It is disclosed that between the active jaw 611 and the driven jaw 612 of the first pair of jaws 61, between the active jaw 621 and the driven jaw 622 of the second pair of jaws 62, between the driven jaw 612 of the first pair of jaws 61 and the positioning jaw 63, and between the driven jaw 622 of the second pair of jaws 62 and the positioning jaw 63, there are respectively Figure 2 the material taking spacing H1 between the feeding grid positions 12 shown. In the case where the positioning jaw 63 is not installed (not shown), between the two adjacent driven jaws 612 and 622 there is Figure 2 the material taking spacing H1 between the feeding grid positions 12 shown.

[0046] Next, according to the above configuration, please first refer to Figure 6c , it is disclosed that at least one of the linear drivers 52 can provide a linear force along the opposite direction of the straight line L to respectively drive each pair of the active jaws 611, 621 to move a total stroke S at one time, and the pull rod 64 is driven by the active slide 521 or the active jaws 611, 621 to move the total stroke S at one time; during this one-time movement process, there is included Figure 6b the intermediate state disclosed; Figure 6b It is disclosed that through the one-time drive of at least one of the linear drivers 52, Figure 6a the active jaws 611, 621 and the pull rod 64 shown first move an active stroke S1, and the distance of the active stroke S1 is the same as Figure 2 the material placing spacing H2 between the material placing grid positions 22 shown; at this time, the pushing portion 641 of the pull rod 64 contacts the driven slide 522 (or the driven jaws 612 and 622); then, as in Figure 6c the state, by continuously driving the linear driver 52, the pushing portion 641 of the pull rod 64 will pull the driven slide 522 and the driven jaws 612 and 622 to move a driven stroke S2, and the distance of the driven stroke S2 is also the same as Figure 2 the material placing spacing H2 between the material placing grid positions 22 shown; thus, it can be known that the total stroke S = active stroke S1 + driven stroke S2; wherein, the active stroke S1 = driven stroke S2 = Figure 2 the material placing spacing H2 between the material placing grid positions 22 shown, and it is known that the driven jaws 612 and 622 are excluded from being pulled by the respective pull rods 64 to move during the active stroke S1 of the movement of the active jaws 611, 621 and the pull rod 64.

[0047] It should be noted here that in the case where the positioning pawl 63 is not installed (not shown), the distance of the driven stroke S2 by which the two adjacent driven pawls 612 and 622 can be pulled apart and moved by the pull rod 64 from the original material taking pitch H1 is half of the active stroke S1, so that the total stroke S = the active stroke S1 + half of the driven stroke S2, and the active stroke S1 = twice the driven stroke S2 = Figure 2 The material placing pitch H2 between the shown material placing grid positions 22.

[0048] The above description is illustrative rather than restrictive to the present invention. Those of ordinary skill in the art understand that many modifications, variations or equivalents can be made without departing from the spirit and scope defined by the claims, and all of them will fall within the protection scope of the present invention.

Claims

1. A mobile jig for adjusting the spacing of clamped objects, characterized in that, it includes: A base for providing a multi-axis handler to be mounted thereon and extending along a straight line to form a base surface; A plurality of clamping claws with the ability to open and close, at least arranged in pairs at intervals and movably on the base surface along the straight line; At least one linear drive, arranged on the base, and providing linear power in two opposite directions to respectively drive and connect the paired clamping claws; Wherein, each pair of the clamping claws includes a driving clamping claw and a driven clamping claw spaced along the straight line. A pull rod is fixedly arranged on the driving clamping claw along the straight line. The pull rod has a pushing portion extending in a direction along the straight line. At least one of the linear drives drives the driving clamping claws and the pull rod to move a total stroke in the other direction along the straight line, and pulls the driven clamping claws to move a driven stroke through the pushing portion, wherein the moving distance of the driven stroke is completed within the total stroke.

2. The mobile jig for adjusting the spacing of clamped objects according to claim 1, characterized in that: The base is provided with an adapter, and the multi-axis handler mounts the jig through the adapter.

3. The mobile jig for adjusting the spacing of clamped objects according to claim 1, characterized in that: The driven clamping claws are located on the relatively inner side of the base surface and are adjacent to each other, and the driving clamping claws are located on the relatively outer side of the base surface and are spaced apart from the driven clamping claws and away from each other.

4. The mobile jig for adjusting the spacing of clamped objects according to claim 1, characterized in that: The base surface is provided with an even number of slide rails in pairs, and the driving clamping claws and the driven clamping claws are respectively slidably arranged on the base surface via the slide rails.

5. The mobile jig for adjusting the spacing of clamped objects according to claim 1, 3 or 4, characterized in that: The pull rod passes through the driven clamping claw, and the pushing portion is formed at a position where it can be touched beside the driven clamping claw.

6. The mobile jig for adjusting the spacing of clamped objects according to claim 4, characterized in that: The driving clamping claw is slidably arranged on the slide rail via a driving slide seat, and the driven clamping claw is slidably arranged on the slide rail via a driven slide seat.

7. The mobile jig for adjusting the spacing of clamped objects according to claim 6, characterized in that: The driven clamping claw provides the pull rod to pass through by means of the driven slide seat, and the pushing portion is formed at a position where it can be touched beside the driven slide seat.

8. The mobile jig for adjusting the spacing of clamped objects according to claim 1, characterized in that: The total stroke of at least one of the linear drives driving each driving clamping claw and each pull rod to move includes an active stroke. The total stroke is the sum of the distances of the active stroke and the driven stroke, and each driven clamping claw is excluded from being pulled by each pull rod and following the movement during the active stroke of the movement of each driving clamping claw and each pull rod.

9. The mobile jig for adjusting the spacing of clamped objects according to claim 1 or 8, characterized in that: The distances of the active stroke and the driven stroke are the same.

10. The mobile jig for adjusting the spacing of clamped objects according to claim 9, characterized in that: The relative spacing between each of the active claws and each of the driven claws remains consistent before and after the movement.

11. The mobile jig for adjusting the spacing of the clamped object according to claim 1, characterized in that: The plurality of claws further includes a positioning claw fixedly disposed on the base surface independently along the straight line, and the plurality of pairs of claws are arranged at intervals along the straight line on both sides of the positioning claw.

12. The mobile jig for adjusting the spacing of the clamped object according to claim 11, characterized in that: The positioning claw is located at intervals between two adjacent driven claws.

13. The mobile jig for adjusting the spacing of the clamped object according to claim 11 or 12, characterized in that: The total stroke of at least one of the linear drives for driving each of the active claws and each of the tie rods to move further includes an active stroke. The total stroke is the sum of the distances of the active stroke and the driven stroke, and each of the driven claws is excluded from being pulled by each of the tie rods and following the movement within the active stroke of the movement of each of the active claws and each of the tie rods.

14. The mobile jig for adjusting the spacing of the clamped object according to claim 13, characterized in that: The distance of the driven stroke is one half of the active stroke.

15. The mobile jig for adjusting the spacing of the clamped object according to claim 14, characterized in that: The relative spacing between each of the active claws, each of the positioning claws, and each of the driven claws remains consistent before and after the movement.

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