Dumper auxiliary frame spot splicing device

Abstract

The invention discloses a dump truck auxiliary frame point splicing device, which relates to the technical field of auxiliary frame point splicing and comprises a supporting assembly, a translation module, a longitudinal beam positioning assembly group and a cross beam supporting mechanism group. The number of the translation modules is two, the two translation modules are arranged on the supporting assembly in parallel and at intervals, the number of the longitudinal beam positioning assembly sets is two, the two longitudinal beam positioning assembly sets are arranged on the two translation modules respectively, and a plurality of longitudinal beam positioning assemblies in each longitudinal beam positioning assembly set are sequentially arranged in the longitudinal direction of the translation modules. The longitudinal beam positioning assembly group is used for supporting a longitudinal beam; the number of the cross beam supporting mechanism sets is two, and the multiple cross beam supporting mechanisms in the cross beam supporting mechanism sets are sequentially arranged in the longitudinal direction of the translation module. Each cross beam supporting mechanism can move on the translation module in the longitudinal direction, and the two cross beam supporting mechanism sets are arranged between the two longitudinal beam positioning assembly sets. The beam supporting mechanism set is used for supporting the beam. The machining precision and machining efficiency of products can be improved.

Description

Technical Field

[0001] The invention relates to the technical field of sub-frame point assembly, in particular to a sub-frame point assembly device for a dump truck. Background Art

[0002] In the early stage, the assembly and pairing of dump truck subframes were all done manually on a work platform, which was inefficient. The workpieces were in a free state, the dimensional errors of the workpieces after assembly were large, and the precision was not high, which had a certain impact on the subsequent processes. Summary of the invention

[0003] The purpose of the present invention is to provide a dump truck subframe point assembly device to solve the problems existing in the above-mentioned prior art and improve product processing accuracy and processing efficiency.

[0004] To achieve the above object, the present invention provides the following solutions:

[0005] The present invention provides a dump truck subframe point assembly device, comprising:

[0006] Support components;

[0007] Two translation modules are provided, the two translation modules are arranged on the support assembly in parallel and at a distance, and the translation modules can be arranged on the support assembly to move in the lateral direction;

[0008] There are two sets of longitudinal beam positioning assembly groups, the two sets of longitudinal beam positioning assembly groups are respectively arranged on the two translation modules, and the plurality of longitudinal beam positioning assemblies in each set of longitudinal beam positioning assembly groups are sequentially arranged along the longitudinal direction of the translation module; each longitudinal beam positioning assembly can move along the longitudinal direction on the translation module; the longitudinal beam positioning assembly group is used to support the longitudinal beam;

[0009] There are two groups of cross-beam support mechanism groups, and the two groups of cross-beam support mechanism groups are respectively arranged on the two translation modules. The multiple cross-beam support mechanisms in each group of the cross-beam support mechanism groups are arranged in sequence along the longitudinal direction of the translation module; each of the cross-beam support mechanisms can move along the longitudinal direction on the translation module, and the two groups of the cross-beam support mechanism groups are arranged between the two groups of longitudinal beam positioning component groups; the cross-beam support mechanism groups are used to support the cross-beam.

[0010] Preferably, each of the longitudinal beam positioning components is provided with a positioning slot, and the positioning slot is a through slot structure extending along the longitudinal direction, and the positioning slot is used to accommodate the longitudinal beam and position the longitudinal beam.

[0011] Preferably, the longitudinal beam positioning assembly includes a vertical clamping device, and the vertical clamping device is configured to clamp the longitudinal beam vertically.

[0012] Preferably, the support assembly includes two basic support modules, the two basic support modules are arranged in parallel and at a distance, one translation module is arranged on one basic support module, and an RGV trolley running track is constructed between the two basic support modules.

[0013] Preferably, it also includes a shaft head pushing device and a shaft head pressing device; the shaft head pushing device is arranged on one of the translation modules, the shaft head pressing device is arranged opposite to the shaft head pushing device, the shaft head pressing device is arranged on another of the translation modules, and the shaft head pressing device is arranged to be movably arranged in the horizontal direction; the shaft head pushing device is used to push one end of the through shaft until the other end of the through shaft rests on the shaft head pressing device.

[0014] Preferably, two V-block positioning devices are provided between the shaft head pushing device and the shaft head jacking device, and the two V-block positioning devices are respectively provided on the two translation modules, and both of the two V-block positioning devices are provided with V-shaped grooves to support the through shaft.

[0015] Preferably, the V-block positioning device includes two split bodies and a split driving device, the two split bodies are arranged with an interval along the longitudinal direction, the sides of the two split bodies facing each other gradually approach each other from top to bottom, and the split driving device can drive the two split bodies to move closer to and away from each other.

[0016] Preferably, the translation module is driven by a translation module driving device to move laterally along the support assembly, and the translation module driving device includes a translation module driving motor, a driving gear and a rack, the rack is fixedly connected to the translation module and extends along the laterally, the driving gear is meshed with the rack, and the translation module driving motor is transmission-connected to the driving gear.

[0017] Preferably, the longitudinal beam positioning assembly includes a bottom plate, which is slidably arranged on the translation module, and the positioning slot is formed between the top plate and the pull plate, and the top plate and the pull plate are both vertically arranged, and the top plate is fixedly arranged on the bottom plate, and the pull plate is movably arranged on the bottom plate in the transverse direction, and the pull plate is driven to move transversely by a pull plate driving device, and a guide roller is arranged on both sides of the positioning slot in the longitudinal direction, and the guide roller is rotatably arranged on the bottom plate, and the vertical clamping device includes a pressing claw and a pressing claw driving device, and the pressing claw driving device can drive the pressing claw to move vertically and rotate around a vertical axis.

[0018] Preferably, the pressure claw driving device utilizes a screw-nut mechanism to drive the pressure claw to move vertically, and drives the pressure claw to rotate around a vertical axis through a gear set; the shaft head pushing device utilizes a screw-nut mechanism to drive the pushing plate to move horizontally.

[0019] Compared with the prior art, the present invention has achieved the following technical effects:

[0020] The present invention assembles workpieces by using mechanized equipment, thereby improving the accuracy and efficiency of the assembling. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the structure of a dump truck subframe point assembly device and a dump truck subframe provided by an embodiment of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the remaining structure after removing the ground, rail accordion cover and dump truck subframe;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the middle support assembly, the translation module and the translation module driving device;

[0025] Figure 4 for Figure 3 A magnified view of the structure at center A;

[0026] Figure 5 for Figure 1 Structural schematic diagram of the middle support assembly, the translation module, the translation module drive device and the longitudinal beam positioning assembly;

[0027] Figure 6 for Figure 5 A magnified view of the structure at center A;

[0028] Figure 7 for Figure 1 A schematic diagram of the structure of the middle support assembly, the translation module, the translation module driving device, the shaft head tightening device and the shaft head pushing device;

[0029] Figure 8 for Figure 1 Structural schematic diagram of the middle shaft head tightening device, shaft head pushing device and V-block positioning device;

[0030] Fig. 9 It is a structural schematic diagram of the longitudinal beam positioning assembly;

[0031] Fig.10 for Fig. 9 Schematic diagram of the structure of the middle part;

[0032] Fig.11 is a structural schematic diagram of the beam support mechanism;

[0033] In the figure: 1-basic bracket module; 2-translation module; 3-longitudinal beam positioning assembly; 4-axle head tightening device; 5-axle head pushing device; 6-V-block positioning device; 7-crossbeam supporting mechanism; 8-translation module driving device; 9-translation module driving motor; 10-rack; 11-positioning slot; 12-pull plate; 13-top plate; 14-guide roller; 15-split; 16-split driving device; 17-vertical clamping device; 18-pull plate driving motor; 19-screw nut module for driving the pull plate; 20-pressure claw; 21-gear set for driving the pressure claw. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0036] The subframe mentioned in the present application includes longitudinal beams, cross beams and a through-axis on both sides, a plurality of cross beams between the two longitudinal beams, the cross beams are perpendicular to the longitudinal beams, and the through-axis is arranged at the end of the longitudinal beam.

[0037] In this specification, the longitudinal direction refers to the extending direction of the longitudinal beam, and the transverse direction refers to the extending direction of the transverse beam.

[0038] Combine the following Figures 1 to 11 , describing an embodiment of the present invention.

[0039] The present invention provides a dump truck auxiliary frame point assembly device, comprising: a support component, a translation module 2, a longitudinal beam positioning component group and a cross beam support mechanism group.

[0040] There are two translation modules 2, which are arranged on the support assembly in parallel and with an interval, and the translation module 2 can be arranged on the support assembly to move in the horizontal direction; there are two groups of longitudinal beam positioning component groups, which are respectively arranged on the two translation modules 2, and a plurality of longitudinal beam positioning components 3 in each group of longitudinal beam positioning component groups are arranged in sequence along the longitudinal direction of the translation module 2; each longitudinal beam positioning component 3 can move in the longitudinal direction on the translation module 2; the longitudinal beam positioning component group is used to support the longitudinal beam; there are two groups of cross beam support mechanism groups, which are respectively arranged on the two translation modules 2, and a plurality of cross beam support mechanisms 7 in each group of cross beam support mechanism groups are arranged in sequence along the longitudinal direction of the translation module 2; each cross beam support mechanism 7 can move in the longitudinal direction on the translation module 2, and the two groups of cross beam support mechanism groups are arranged between the two groups of longitudinal beam positioning component groups; the cross beam support mechanism group is used to support the cross beam.

[0041] The present invention utilizes a longitudinal beam positioning component group to position the longitudinal beams, with the longitudinal beams on both sides serving as key components for positioning. After the longitudinal beams are positioned, since the cross beam welding positions are pre-marked on the longitudinal beams in the previous process, after the longitudinal beams are positioned, the positions of the cross beam support mechanisms 7 are adjusted by the marks on the longitudinal beams, so that the two ends of each cross beam are respectively placed on two cross beam support mechanisms 7, and then the cross beams and the longitudinal beams are welded and fixed.

[0042] The present invention assembles workpieces by using mechanized equipment, thereby improving the accuracy and efficiency of the assembling.

[0043] In some embodiments, the position of the longitudinal beam positioning assembly 3 on the translation module 2 is manually adjusted. After the adjustment is completed, in order to prevent the longitudinal beam positioning assembly 3 from shifting in position, a locking assembly can be configured. The locking assembly is used to lock the position of the longitudinal beam positioning assembly 3 after it is moved into place. The locking assembly can be a locking bolt, which is threadedly connected to the longitudinal beam positioning assembly 3. Twisting the locking bolt can make the end of the locking bolt press against the translation module 2. Of course, other locking schemes can also be used.

[0044] In some embodiments, the embodiments of the present invention further include a control system, which controls the longitudinal beam positioning component group to clamp and position the longitudinal beam, thereby improving the intelligence level of the equipment and further improving production efficiency.

[0045] In some embodiments, each longitudinal beam positioning assembly 3 is provided with a positioning slot 11 , and the positioning slot 11 is a through slot structure extending along the longitudinal direction, and the positioning slot 11 is used to accommodate the longitudinal beam and position the longitudinal beam.

[0046] This embodiment uses positioning slots 11 to position the longitudinal beam. Since the longitudinal beam is a straight beam, the multiple positioning slots 11 in each group of positioning slots 11 are located on the same straight line. Of course, when the longitudinal beam is not a straight beam, the positions of the positioning slots 11 are arranged as required.

[0047] In some embodiments, the longitudinal beam positioning assembly 3 includes a vertical clamping device 17 , and the vertical clamping device 17 is configured to clamp the longitudinal beam in the vertical direction.

[0048] This embodiment improves the vertical positioning effect of the longitudinal beam and improves the assembly accuracy. The vertical clamping device 17 includes a clamping claw 20. The clamping claw 20 can move up and down. When it moves downward, it clamps the longitudinal beam, and when it moves upward, it contacts the clamping state.

[0049] In some embodiments, the support assembly includes two basic support modules 1, the two basic support modules 1 are arranged in parallel and at a distance, a translation module 2 is arranged on one basic support module 1, and an RGV trolley running track is constructed between the two basic support modules 1.

[0050] This embodiment facilitates the RGV to come over and lift the sub-frame workpiece, and drive the workpiece forward to the next workstation.

[0051] In some embodiments, the embodiments of the present invention also include a shaft head pushing device 5 and a shaft head pressing device 4; the shaft head pushing device 5 is arranged on a translation module 2, the shaft head pressing device 4 is arranged opposite to the shaft head pushing device 5, the shaft head pressing device 4 is arranged on another translation module 2, the shaft head pressing device 4 is movably arranged in the horizontal direction, and can be specifically slidingly arranged through a slide rail assembly, and a locking assembly is arranged on the shaft head pressing device 4, and the locking assembly is used to lock the position of the shaft head pressing device 4 after it moves into place, and the locking assembly can be a locking bolt, and the locking bolt is threadedly connected to the shaft head pressing device 4, and turning the locking bolt can make the end of the locking bolt press against the translation module 2. Of course, other locking schemes can also be adopted; the shaft head pushing device 5 is used to push one end of the through-shaft until the other end of the through-shaft presses against the shaft head pressing device 4.

[0052] This embodiment is suitable for assembling and splicing subframes with through shafts.

[0053] In some embodiments, two V-block positioning devices 6 are further provided between the shaft head pushing device 5 and the shaft head tightening device 4. The two V-block positioning devices 6 are respectively provided on the two translation modules 2. Both V-block positioning devices 6 are provided with V-shaped grooves to support the through shaft.

[0054] The V-block in this embodiment assists in positioning the through-shaft.

[0055] The shaft head tightening device 5, the shaft head tightening device 4 and the two V-block positioning devices 6 are on the same straight line.

[0056] In some embodiments, the V-block positioning device 6 includes two split bodies 15 and a split driving device 16, which are arranged at intervals along the longitudinal direction, and the sides of the two split bodies 15 facing each other gradually approach each other from top to bottom. The split driving device 16 can drive the two split bodies 15 to move closer to and away from each other.

[0057] This embodiment can adapt to through-shafts of different thicknesses. The split drive device 16 includes a split drive motor, a lead screw and a nut. The lead screw has two sections of threads with opposite rotation directions. Two nuts are provided. The two nuts are respectively threadedly connected to the two sections of threads on the lead screw. The two split bodies 15 are respectively fixedly connected to the two nuts. The two split bodies 15 are slidably arranged along the same straight line. The split drive motor drives the lead screw to rotate, which can drive the two nuts and the split bodies 15 to move closer to or farther from each other.

[0058] In some embodiments, the translation module 2 is driven by the translation module driving device 8 to move laterally on the supporting assembly. The translation module driving device 8 includes a translation module driving motor 9, a driving gear and a rack 10. The rack 10 is fixedly connected to the translation module 2 and extends laterally. The driving gear is meshed with the rack 10. The translation module driving motor 9 is transmission-connected to the driving gear.

[0059] This embodiment realizes the automatic movement of the translation module 2 . Specifically, a translation module driving device 8 is provided at both ends of each translation module 2 .

[0060] In some embodiments, the longitudinal beam positioning assembly 3 includes a bottom plate, which is slidably arranged on the translation module 2, and a positioning slot 11 is formed between a top plate 13 and a pull plate 12. The top plate 13 and the pull plate 12 are both vertically arranged, and the top plate 13 is fixedly arranged on the bottom plate. The pull plate 12 is movably arranged on the bottom plate in the transverse direction, and the pull plate 12 is driven to move transversely by a pull plate driving device. A guide roller 14 is arranged on both sides of the positioning slot 11 along the longitudinal direction, and the guide roller 14 is rotatably arranged on the bottom plate. The vertical clamping device 17 includes a pressure claw 20 and a pressure claw driving device, and the pressure claw driving device can drive the pressure claw 20 to move vertically and rotate around the vertical axis. Specifically, the pressure claw driving device uses a screw nut mechanism to drive the pressure claw 20 to move vertically, and through a gear set (i.e., a gear set for driving the pressure claw 21) drives the pressure claw 20 to rotate around the vertical axis; the shaft head pushing device 5 utilizes the screw nut mechanism to drive the pushing plate to move horizontally; the pressure claw driving device includes a first motor and a second motor, a screw is connected to the motor shaft of the first motor, a nut is threadedly connected to the screw, the nut is fixedly connected to the pressure claw 20, the pressure claw 20 is slidably arranged along the vertical direction, the first motor, the screw nut group and the pressure claw 20 as a whole structure can be rotatably arranged around the vertical axis, a driven gear is provided on the outer sleeve of the overall structure, a driving gear is meshed with the outside of the driven gear, the second motor is connected to the driving gear, the second motor drives the driving gear to rotate and drives the driven gear and the overall structure therein to rotate, thereby driving the pressure claw 20 to rotate, so as to avoid the pressure claw 20 being directly above the positioning slot 11 and affecting the placement process of the longitudinal beam.

[0061] The structure of the beam support mechanism 7 is as follows: Fig.10 As shown, a slider is provided on one side, and slide rails are provided on the opposite sides of the two translation modules 2. The beam support mechanism 7 is slidably provided on the translation module 2 through the slider and the position is adjusted manually.

[0062] The specific workflow is as follows:

[0063] The translation modules 2 on both sides move inward or outward at the same time until the distance between the top plates 13 on the translation modules 2 on both sides is equal to or slightly larger than the width of the sub-frame, and then stop. The pull plate 12 in the longitudinal beam positioning assembly 3 is driven by the pull plate driving device to move laterally inward to expand the width of the positioning slot 11, and reserve a large enough space for the longitudinal beam to be automatically placed by the grasping robot. The left and right longitudinal beams are transported to the top of the positioning slot 11 by the grasping robot, and are lowered into the corresponding positioning slot 11. The longitudinal beam is manually moved to a suitable position (the suitable position refers to the longitudinal beam end through the shaft hole and the V-block positioning device 6 are in a line), and then the longitudinal beam positioning assembly 3 is moved to a suitable position along the longitudinal direction (without interfering with the cross beam), and the pull plate 12 is driven by the pull plate driving device to move laterally outward to pull the longitudinal beam until the inner width of the two longitudinal beams meets the design requirements;

[0064] The through shaft is manually placed in the V-block positioning device 6 and passed through the longitudinal beam, with one end stuck and the other end pressed by the shaft head tightening device 5;

[0065] Adjust the crossbeam support mechanism 7 to the corresponding position (the position of the crossbeam has been engraved on the longitudinal beam during laser cutting), and manually place the crossbeam on the corresponding crossbeam support mechanism 7;

[0066] The vertical clamping device 17 clamps the longitudinal beam downward, and all the assembly points of the subframe are positioned in place;

[0067] Manually use welding machines to spot weld the beams and other accessories at the joints;

[0068] After the spot welding is completed, the RGV comes over to lift and support the subframe workpiece, all the clamping is released, and the two translation modules 2 are opened outward at the same time. The RGV drives the workpiece to fall and move forward to the next station.

[0069] In the present invention, the positioning and pressing of the workpieces are all achieved by using mechanisms such as servo motors, reducers, guide rails, slide blocks, gears, racks, screw rods, etc., which not only ensures the accuracy of workpiece assembly but also improves work efficiency.

[0070] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A dump truck subframe point assembly device, characterized in that: include: Support components; Two translation modules are provided, the two translation modules are arranged on the support assembly in parallel and at a distance, and the translation modules can be arranged on the support assembly to move in the lateral direction; There are two sets of longitudinal beam positioning assembly groups, the two sets of longitudinal beam positioning assembly groups are respectively arranged on the two translation modules, and the plurality of longitudinal beam positioning assemblies in each set of longitudinal beam positioning assembly groups are sequentially arranged along the longitudinal direction of the translation module; each longitudinal beam positioning assembly can move along the longitudinal direction on the translation module; the longitudinal beam positioning assembly group is used to support the longitudinal beam; There are two groups of cross-beam support mechanism groups, and the two groups of cross-beam support mechanism groups are respectively arranged on the two translation modules. The multiple cross-beam support mechanisms in each group of the cross-beam support mechanism groups are arranged in sequence along the longitudinal direction of the translation module; each of the cross-beam support mechanisms can move along the longitudinal direction on the translation module, and the two groups of the cross-beam support mechanism groups are arranged between the two groups of longitudinal beam positioning component groups; the cross-beam support mechanism groups are used to support the cross-beam.

2. The dump truck subframe point assembly device according to claim 1, characterized in that: Each of the longitudinal beam positioning components is provided with a positioning slot, and the positioning slot is a through slot structure extending along the longitudinal direction, and the positioning slot is used to accommodate the longitudinal beam and position the longitudinal beam.

3. The dump truck subframe point assembly device according to claim 2, characterized in that: The longitudinal beam positioning assembly includes a vertical clamping device, and the vertical clamping device is configured to clamp the longitudinal beam in a vertical direction.

4. The dump truck subframe point assembly device according to claim 1, characterized in that: The support assembly includes two basic support modules, the two basic support modules are arranged in parallel and at a distance, one translation module is arranged on one basic support module, and an RGV trolley running track is constructed between the two basic support modules.

5. The dump truck subframe point assembly device according to claim 3, characterized in that: It also includes a shaft head pushing device and a shaft head jacking device; the shaft head pushing device is arranged on one of the translation modules, the shaft head jacking device is arranged opposite to the shaft head pushing device, the shaft head jacking device is arranged on another of the translation modules, and the shaft head jacking device is movably arranged in the transverse direction; the shaft head pushing device is used to push one end of the through shaft until the other end of the through shaft rests on the shaft head jacking device.

6. The dump truck subframe point assembly device according to claim 5, characterized in that: Two V-block positioning devices are also arranged between the shaft head pushing device and the shaft head jacking device. The two V-block positioning devices are respectively arranged on the two translation modules. Both of the two V-block positioning devices are provided with V-shaped grooves to support the through shaft.

7. The dump truck subframe point assembly device according to claim 6, characterized in that: The V-block positioning device includes two split bodies and a split driving device, the two split bodies are arranged with an interval along the longitudinal direction, and the sides of the two split bodies facing each other gradually approach each other from top to bottom. The split driving device can drive the two split bodies to approach and move away from each other.

8. The dump truck subframe point assembly device according to claim 1, characterized in that: The translation module is driven by a translation module driving device to move in the lateral direction of the support assembly. The translation module driving device includes a translation module driving motor, a driving gear and a rack. The rack is fixedly connected to the translation module and extends in the lateral direction. The driving gear is meshed with the rack. The translation module driving motor is transmission-connected to the driving gear.

9. The dump truck subframe point assembly device according to claim 5, characterized in that: The longitudinal beam positioning assembly includes a bottom plate, which is slidably arranged on the translation module, and the positioning slot is formed between the top plate and the pull plate. The top plate and the pull plate are both vertically arranged, and the top plate is fixedly arranged on the bottom plate. The pull plate is movably arranged on the bottom plate in the transverse direction, and the pull plate is driven to move transversely by a pull plate driving device. A guide roller is arranged on both sides of the positioning slot in the longitudinal direction, and the guide roller is rotatably arranged on the bottom plate. The vertical clamping device includes a pressing claw and a pressing claw driving device, and the pressing claw driving device can drive the pressing claw to move vertically and rotate around a vertical axis.

10. The dump truck subframe point assembly device according to claim 9, characterized in that: The pressure claw driving device utilizes a screw nut mechanism to drive the pressure claw to move vertically, and drives the pressure claw to rotate around a vertical axis through a gear set; the shaft head pushing device utilizes a screw nut mechanism to drive the pushing plate to move horizontally.

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