Flexible combination tooling for automobile production lines

Abstract

The present invention relates to a flexible combined tooling, including a basic tooling located on an assembly line, and an accompanying tooling placed on the basic tooling when assembling a workpiece and transferred with the workpiece after the assembly is completed. The accompanying tooling includes: at least two crossbeams; at least two longitudinal beams, which are detachably connected to the crossbeams through clamps; a plurality of first clamps, which are located at the outer ends of the crossbeams and / or longitudinal beams to press the workpiece in the horizontal direction; and a plurality of second clamps, which are located in the middle of the crossbeams and / or longitudinal beams to press the workpiece in the vertical direction. When assembling the workpiece, the accompanying tooling is placed on the basic tooling to form a combined tooling. When the workpiece is assembled, only the accompanying tooling is transferred with the workpiece offline, while the basic tooling continues to circulate on the assembly line, which can reduce the weight of the mobile tooling. The first clamp and the second clamp in the tooling can be adjusted in three directions, X, Y, and Z, so as to meet the local adjustment requirements of the tooling, and has strong applicability.

Description

Technical Field

[0001] The invention belongs to the field of tooling, and in particular relates to a flexible combined tooling which can be used for assembling automobile parts. Background Art

[0002] Various types of skeletons are needed in the construction, automobile and other industries. The skeletons need to be welded or riveted during the production process. In the absence of positioning tooling, manual positioning causes the skeleton to be easily deformed during the welding process, thereby failing to meet the dimensional accuracy requirements. In addition, the efficiency of manual positioning is also low. For this reason, in patent application CN206029139U, a welding auxiliary tooling for the battery bracket in the middle section of an electric bus is disclosed. The tooling includes a bottom frame and a top frame. The top frame is arranged above the central part of the bottom frame. A first support rod and a second support rod are fixed between the top frame and the bottom frame. A support is fixed on the lower surface of the bottom frame. The bottom frame includes a longitudinal beam arranged side by side and a short cross beam fixed side by side between two adjacent longitudinal beams. The top frame includes a rectangular frame and a short longitudinal beam fixed side by side on the inner side of the rectangular frame. The tooling mainly serves the function of lifting the bracket. Compared with manual positioning, its positioning effect is improved during the workpiece assembly process, but due to the lack of fixture fixation, the accuracy is still not high.

[0003] Patent application CN104477274B discloses a fixed assembly table that can be used to assemble a vehicle frame assembly. During assembly, a clamping unit 1 on the assembly table can position the rear section of the frame, and a clamping unit 2 can position the front section of the frame. The frame can also be clamped and adjusted by a control system consisting of a displacement sensor, a hydraulic system, and a control cabinet. The assembly table has a high degree of automation, but the system is complex and the cost is relatively high.

[0004] While improving the positioning accuracy of the tooling, it is inevitable to increase the weight of the tooling. To this end, the weight of the tooling can be reduced by starting from the structural design of the tooling, material selection, etc. For example, patent application CN108802201A discloses a sound insulation window tooling for testing the sound insulation performance of automobile thin plate parts and interior materials. The tooling reduces the weight of the tooling by adopting a main frame with an internal cavity structure. Another example is patent application CN105696042A, which discloses a galvanized tooling for automobile engine tensioner cover. The tooling reduces the weight of the tooling by using special parts such as sealing sleeves made of polypropylene. Summary of the invention

[0005] In order to reduce the weight of the tooling and adapt to the assembly requirements of workpieces of different sizes and types, the present disclosure provides a flexible combined tooling for an automobile production line.

[0006] According to one aspect of an embodiment of the present disclosure, there is provided a flexible combined tooling, comprising a basic tooling located on an assembly line, and an accompanying tooling placed on the basic tooling when assembling a workpiece and transferred with the workpiece after the assembly is completed;

[0007] The accompanying tooling includes:

[0008] At least two beams;

[0009] at least two longitudinal beams, detachably connected to the cross beams via clamps;

[0010] A plurality of first clamps, located on the cross beam and / or the longitudinal beam to press the workpiece in the horizontal direction, wherein the first clamp comprises a first workpiece support block, a first quick clamp, a first quick clamp mounting seat and a first adjustment support, the first quick clamp mounting seat and the first adjustment support are arranged opposite to each other and the relative distance between the two is adjustable, the first workpiece support block is horizontally arranged on the first adjustment support, and the height of the first workpiece support block on the first adjustment support is adjustable, and the first quick clamp is installed on the first quick clamp mounting seat to press the workpiece located in the first workpiece support block in the horizontal direction;

[0011] A plurality of second clamps are located on the crossbeam and / or the longitudinal beam to clamp the workpiece in a vertical direction, wherein the second clamps include a second workpiece support block, a second quick clamp and a second adjustment support, the second adjustment support is arranged on the crossbeam and / or the longitudinal beam and the position is adjustable, the second workpiece support block is horizontally arranged on the second adjustment support, and the height of the second workpiece support block on the second adjustment support is adjustable, and the second quick clamp is installed on the second adjustment support to clamp the workpiece located in the second workpiece support block in a vertical direction.

[0012] In the above-mentioned flexible combined tooling, a cushion block adaptable to different profiles is provided in the first workpiece supporting block and / or the second workpiece supporting block.

[0013] In the above-mentioned flexible combined tooling, the basic tooling includes a bracket and a plurality of positioning bases located on the bracket and carrying the accompanying tooling.

[0014] In the above-mentioned flexible combination tooling, the accompanying tooling also includes a plurality of positioning guide mechanisms cooperating with the positioning base, and the plurality of positioning guide mechanisms include a first positioning component placed in the positioning base when the basic tooling and the accompanying tooling are combined, and the first positioning component is arranged vertically downward, and the end surface of the first positioning component in contact with the positioning base is parallel to the horizontal plane.

[0015] In the above-mentioned flexible combined tooling, the plurality of positioning and guiding mechanisms further include a second positioning component extending vertically upward, and the first positioning component and the second positioning component are located on the same straight line.

[0016] In the above-mentioned flexible combined tooling, the end faces of the first positioning component and the second positioning component have the same shape and size.

[0017] In the above-mentioned flexible combined tooling, the basic tooling and / or accompanying tooling further include a plurality of slots for supporting workpieces.

[0018] In the above-mentioned flexible combined tooling, the horizontal position and the vertical position of the slot are adjustable.

[0019] In the above-mentioned flexible combined tooling, the material of the basic tooling and / or the accompanying tooling is aluminum profile.

[0020] The beneficial effects of the present disclosure are:

[0021] 1. The tooling is designed to be modular. After the workpiece is assembled, the accompanying tooling is transferred to the welding line with the workpiece offline buffer to weld the positioned workpiece. The basic tooling circulates on the assembly line, which can reduce the weight of the moving tooling.

[0022] 2. The positioning and guiding mechanism can not only be used for positioning when the basic tooling and the accompanying tooling are combined, but also for positioning when the accompanying tooling is stacked and cached.

[0023] 3. The positions of the cross beam and the longitudinal beam, the position of the slot, the position of the first clamp and the second clamp, and the position of the workpiece support block on the clamp in the combined tooling of the present invention can all be adjusted, so that the slot, the first clamp and the second clamp can be adjusted in three directions of X, Y, and Z, which can meet the local adjustment needs of the tooling and has strong applicability.

[0024] 4. The adjusting base of the first fixture and the second fixture, the workpiece support block and each clamping clamp of the tooling can be extruded from aluminum profiles, which greatly reduces the amount of machining.

[0025] 5. The shape and structure of the pad in the workpiece support block are adapted to the shape of the cross section of the profile constituting the workpiece, and can be replaced according to the type of workpiece, so that the flexible tooling of the present invention can be applied to the assembly of different workpieces, and the parts have wide versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0027] Figure 1 A three-dimensional diagram of the flexible combined tooling for the automobile production line of the present invention is shown.

[0028] Figure 2 Shows Figure 1 The three-dimensional image of the flexible combination tooling after being disassembled is shown.

[0029] Figure 3 A three-dimensional view of a traveling tool and a workpiece thereon is shown.

[0030] Figure 4 A perspective view of a transport tool is shown.

[0031] Figure 5 A three-dimensional view of the first clamp on the tooling companion is shown.

[0032] Figure 6 A stereoscopic view of the second clamp on the tooling companion is shown.

[0033] Figure 7 Shows Figure 4 Magnified view of section A in FIG.

[0034] Figure 8 A three-dimensional view of the docking points of upper and lower adjacent traveling tools after the traveling tools are palletized is shown.

[0035] Fig. 9 A perspective view of the base tooling is shown.

[0036] Fig.10 Shows Fig. 9 Magnified view of portion B.

[0037] Fig.11 A three-dimensional diagram showing the palletizing of workpieces and accompanying tooling buffers is shown.

[0038] Fig.12 Shows Fig.11 Magnified view of section C in FIG.

[0039] Explanation of the reference numerals: 100-basic tooling; 200-accompanying tooling; 300-workpiece; 1-crossbeam; 2-first fixture; 3-longitudinal beam; 4-second fixture; 5-workpiece support block; 501-pad; 6-first quick clamp; 7-first quick clamp mounting seat; 8-second quick clamp; 9-second quick clamp mounting seat; 10-adjusting support; 11-lower clamp; 12-upper clamp; 14-slot; 21-positioning guide mechanism; 22-positioning base; 210-first positioning component; 211-second positioning component; 220-supporting portion; 221-limiting portion. DETAILED DESCRIPTION

[0040] refer to Figure 1 to Figure 3 The flexible combined tooling includes a basic tooling 100 and an accompanying tooling 200 that can be combined together. When assembling the workpiece 300, the accompanying tooling 200 is placed on the basic tooling 100 to form a combined tooling. When the workpiece 300 is assembled, only the accompanying tooling 200 is transferred to the welding line with the workpiece 300 to perform welding on the positioned workpiece 300, while the basic tooling 100 continues to circulate on the assembly line, which can reduce the weight of the mobile tooling.

[0041] The portable tooling 200 includes a bracket and a plurality of positioning guide mechanisms 21 located on the bracket. The basic tooling 100 includes a bracket and a plurality of positioning bases 22 located on the bracket and matching with the positioning guide mechanisms 21. The positioning guide mechanisms 21 and the positioning bases 22 are used for positioning when the basic tooling 100 and the portable tooling 200 are combined. The positioning guide mechanisms 21 can also be used for positioning when the portable tooling is stacked. Figure 1 During assembly, the tooling assembly can be quickly completed by simply placing the positioning guide mechanism 21 of the accompanying tooling 200 in the positioning base 22 on the basic tooling 100, which means that the weight of the mobile tooling is reduced while the work efficiency is not reduced.

[0042] refer to Figure 3 , Figure 4 The bracket of the portable tooling 200 may include a plurality of crossbeams 1 and longitudinal beams 3, which are connected together by clamps. By loosening the clamps, the spacing between the crossbeams 1 or longitudinal beams 3 can be adjusted to meet the assembly requirements of workpieces of different sizes. A plurality of first fixtures 2 and second fixtures 4 for clamping the workpiece 300 are installed on the crossbeams 1 and / or the longitudinal beams 3, and the specific positions of the first fixtures 2 and the second fixtures 4 can be adjusted according to the shape and structure of the workpiece 300.

[0043] refer to Figure 4 The first clamp 2 of the accompanying tool 200 can be located at both ends or one end of the crossbeam 1 and / or the longitudinal beam 3 to press the workpiece 300 in the horizontal direction. Figure 5 The first clamp 2 includes a workpiece support block 5, a first quick clamp 6, a first quick clamp mounting seat 7, an adjustment support 10 and a lower clamp 11. The first quick clamp mounting seat 7 and the adjustment support 10 are arranged opposite to each other, and both can be fixed on two lower clamps 11 located on the same crossbeam 1 or longitudinal beam 3 by fasteners, and the fasteners can be bolts. When it is necessary to adjust the spacing between the first quick clamp mounting seat 7 and the adjustment support 10, it is only necessary to loosen the fasteners and adjust the position of the lower clamp 11 on the crossbeam 1 or longitudinal beam 3. The adjustment support 10 has vertically distributed waist-shaped mounting holes, and the workpiece support block 5 is fixed to the inner side surface of the adjustment support 10 (facing the side of the first quick clamp mounting seat 7) by fasteners. The installation height of the workpiece support block 5 can be adjusted by changing the position of the fasteners in the waist-shaped mounting holes, and the fasteners can be screws. The first quick clamp 6 is installed on the first quick clamp mounting seat 7 to press the workpiece 300 located in the workpiece support block 5 from the horizontal direction. A waist-shaped hole is arranged in the middle of the first quick-clamp mounting seat 7. By changing the position of the first quick-clamp head 6 in the waist-shaped hole, the workpiece can be pressed from the direction facing the workpiece.

[0044] refer to Figure 4The second clamp 4 of the accompanying tool 200 may be located in the middle of the crossbeam 1 and / or the longitudinal beam 3 to press the workpiece 300 in the vertical direction. Figure 6 The second fixture 4 includes a workpiece support block 5, a second quick clamp 8, an adjustment support 10, a lower clamp 11, etc. The adjustment support 10 is fixed to the lower clamp 11 located on the crossbeam 1 or the longitudinal beam 3 by fasteners. When the position of the second fixture 4 is to be adjusted, it is only necessary to loosen the fasteners to adjust the position of the lower clamp 11. The fasteners fixing the adjustment support 10 can be bolts. The adjustment support 10 has vertically distributed waist-shaped mounting holes. The screws and other fasteners located in the waist-shaped mounting holes can fix the workpiece support block 5 on one side of the adjustment support 10. Changing the position of the screws in the mounting holes can adjust the installation height of the workpiece support block 5. The second quick clamp 8 is installed on the adjustment support 10 through the second quick clamp mounting seat 9 to vertically press the workpiece 300 located in the workpiece support block 5.

[0045] A cushion block 501 may be further provided inside the workpiece support block 5 in the first fixture 2 and / or the second fixture 4 of the portable tooling 200 , and the shape of the cushion block 501 may be adjusted to accommodate profiles of different cross-sections.

[0046] The positioning guide mechanism 21 can be installed at the outer end of the longitudinal beam 3, such as Figure 4 , a positioning guide mechanism 21 may be provided at both ends of the two outermost longitudinal beams 3. As an alternative, the positioning guide mechanism 21 may also be provided at one end or both ends of the cross beam 1. Figure 7 The positioning guide mechanism 21 includes a first positioning member 210 pointing vertically downward and a second positioning member 211 pointing vertically upward, wherein the first positioning member 210 and the second positioning member 211 are located on the same straight line, and the end faces of the first positioning member 210 and the second positioning member 211 are of the same shape and size and are parallel to the horizontal plane. Figure 8 When stacking a plurality of transportable tooling 200 together, it is only necessary to completely align the first positioning component 210 of the upper transportable tooling with the second positioning component 211 of the lower transportable tooling, so that the plurality of stacked transportable tooling can be quickly tidied.

[0047] refer to Fig. 9 The bracket of the basic tooling 100 may also include a plurality of cross beams 1 and longitudinal beams 3, which are connected together by lower clamps and upper clamps 12. The cross beam 1 is placed on the longitudinal beam 3, the lower clamp is clamped on the longitudinal beam 3 below, and the upper clamp 12 is clamped on the longitudinal beam 3 above. The upper clamp 12 and the lower clamp are fixedly connected by fasteners, which may be bolts. By loosening the fasteners, the spacing between the two cross beams 1 or the two longitudinal beams 3 can be adjusted to adapt to the size of the accompanying tooling 200 placed on the basic tooling 100.

[0048] The crossbeam 1 and / or longitudinal beam 3 of the basic tooling 100 and the accompanying tooling 200 may also be provided with a plurality of slots 14 for supporting the workpiece 300, that is, the corresponding parts of the workpiece 300 may be clamped in the slots 14, so as to assist the first fixture 2 and the second fixture 4 of the accompanying tooling 200 on the upper layer to position the parts of the workpiece when assembling the workpiece. Fig.10 The card slot includes a supporting portion 220 and a limiting portion 221 located on a side of the supporting portion 220 .

[0049] The installation position of the positioning base 22 on the basic tooling 100 corresponds to the installation position of the positioning guide mechanism 21 on the accompanying tooling 200. When a positioning guide mechanism 21 is respectively provided at both ends of the two outermost longitudinal beams 3 of the accompanying tooling 200, a positioning base 22 is also correspondingly provided at both ends of the two outermost longitudinal beams 3 of the basic tooling 100. The first positioning component 210 of the positioning guide mechanism 21 is placed in the positioning base 22 corresponding to the basic tooling 100 to achieve rapid assembly of the tooling. After the workpiece is assembled, the accompanying tooling 200 is transferred to the welding line with the workpiece 300 offline buffer, and the positioned workpiece is welded, and the basic tooling 100 circulates on the assembly line. This combined tooling can reduce the weight of the moving tooling, and the positioning guide mechanism 21 can not only be used for positioning when the basic tooling 100 and the accompanying tooling 200 are combined, but also can be used for example Fig.11 The accompanying tool 200 is shown positioned during palletizing and buffering.

[0050] The materials of the basic tooling 100 and the accompanying tooling 200 can be made of high-strength and good-plastic materials such as aluminum alloy. The adjustment support 10 of the first clamp 2 and the second clamp 4, the workpiece support block 5, and the lower clamp 11 and the upper clamp 12 of the tooling can all be extruded from aluminum profiles, which greatly reduces the amount of machining.

[0051] The combined tooling disclosed in the present invention is flexible, and the positions of the crossbeam and the longitudinal beam in the combined tooling, the positions of the slots, the positions of the first clamp and the second clamp, and the positions of the workpiece support blocks on the first clamp and the second clamp that support the workpiece can all be adjusted, so that the first clamp and the second clamp can be adjusted in three directions, namely, X, Y, and Z, which can meet the local adjustment requirements of the tooling and has strong applicability.

[0052] The flexible combined tooling disclosed in the present invention can be used for assembling a car roof. In order to adapt to the outer side of the roof module, the first clamp 2 can be arranged on the outer side of the accompanying tooling 200. Figure 3, both ends of the crossbeam 1 and the longitudinal beam 3 can be provided with the first fixture 2, which is exactly distributed in an octagon, that is, the first fixture 2 is located at the vertex of the octagon. The number of crossbeams 1 and longitudinal beams 3, that is, the number of rows of the first fixture 2 in the horizontal and longitudinal directions can be adjusted according to needs. In order to adapt to ceilings of different widths, the accompanying tooling can be operated as follows: keep the first fixture 2 in the longitudinal direction and the second fixture 4 in the middle position stationary; at the same time, keep the first fixture 2 at one end in the transverse direction stationary, and adjust the first fixture 2 at the other end to a suitable position. In order to adapt to the inner crossbeams and inner longitudinal beams of ceilings of different sizes, the accompanying tooling can be operated as follows: keep the first fixture 2 in the surrounding directions stationary, and adjust the second fixture 4 to a suitable position according to the position of the inner longitudinal beam of the ceiling. After the ceiling module is assembled on the assembly line using the combined tooling, the accompanying tooling 200 is transferred to the welding line with the workpiece 300 offline cache, and the positioned workpiece is welded, and the basic tooling 100 circulates on the assembly line.

Claims

1. A flexible combined tooling, characterized in that: It includes basic tooling located on the assembly line, and accompanying tooling that is placed on the basic tooling when assembling the workpiece and is transferred with the workpiece after the assembly is completed; The accompanying tooling includes: At least two beams; at least two longitudinal beams, detachably connected to the cross beams via clamps; A plurality of first clamps, located on the cross beam and / or the longitudinal beam to press the workpiece in the horizontal direction, wherein the first clamp comprises a first workpiece support block, a first quick clamp, a first quick clamp mounting seat and a first adjustment support, the first quick clamp mounting seat and the first adjustment support are arranged opposite to each other and the relative distance between the two is adjustable, the first workpiece support block is horizontally arranged on the first adjustment support, and the height of the first workpiece support block on the first adjustment support is adjustable, and the first quick clamp is installed on the first quick clamp mounting seat to press the workpiece located in the first workpiece support block in the horizontal direction; A plurality of second clamps are located on the crossbeam and / or the longitudinal beam to clamp the workpiece in a vertical direction, wherein the second clamps include a second workpiece support block, a second quick clamp and a second adjustment support, the second adjustment support is arranged on the crossbeam and / or the longitudinal beam and the position is adjustable, the second workpiece support block is horizontally arranged on the second adjustment support, and the height of the second workpiece support block on the second adjustment support is adjustable, and the second quick clamp is installed on the second adjustment support to clamp the workpiece located in the second workpiece support block in a vertical direction.

2. The flexible combined tooling according to claim 1, characterized in that: The first workpiece support block and / or the second workpiece support block are provided with cushion blocks adapted to different profiles.

3. The flexible combined tooling according to claim 1, characterized in that: The basic tooling includes a bracket and a plurality of positioning bases on the bracket that carry the accompanying tooling.

4. The flexible combined tooling according to claim 3, characterized in that: The accompanying tooling also includes a plurality of positioning guide mechanisms cooperating with the positioning base, and the plurality of positioning guide mechanisms include a first positioning component placed in the positioning base when the basic tooling and the accompanying tooling are combined, the first positioning component is arranged vertically downward, and the end surface of the first positioning component in contact with the positioning base is parallel to the horizontal plane.

5. The flexible combined tooling according to claim 4, characterized in that: The plurality of positioning and guiding mechanisms further include a second positioning component extending vertically upward, and the first positioning component and the second positioning component are located on the same straight line.

6. The flexible combined tooling according to claim 5, characterized in that: The end faces of the first positioning component and the second positioning component have the same shape and size.

7. The flexible combined tooling according to claim 1, characterized in that: The basic tooling and / or accompanying tooling further comprises a plurality of slots for supporting workpieces.

8. The flexible combined tooling according to claim 7, characterized in that: The horizontal position and vertical position of the card slot are adjustable.

9. The flexible combined tooling according to any one of claims 1 to 8, characterized in that: The material of the basic tooling and / or accompanying tooling is aluminum profile.

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