Lifting carriage for dismounting workpieces

Abstract

The utility model relates to dismantling device technical field provides a kind of lifting truck for dismounting workpiece, including rack, positioning fixture, lifting drive arrangement and drive wheel device;Positioning fixture can be set in rack along rack vertical reciprocating slidingly, positioning fixture is positioned support to workpiece;Lifting drive arrangement drives positioning fixture to slide relative to rack;Drive wheel device is located at the bottom end of rack, drive wheel device drives rack to move in any direction along reference surface and can drive rack to rotate around reference axis, reference surface is vertically perpendicular to rack, reference axis passes through the centroid of rack bottom surface and is parallel to rack vertical direction. Thus, drive wheel device can drive rack to move along rack longitudinal direction, move along the transverse direction of rack, move along the direction of any angle with the longitudinal direction of rack, and can drive rack to rotate in place with zero radius, with high flexibility, the position of rack can be quickly and accurately adjusted, and then the position adjustment of positioning fixture is realized, which is beneficial to improve dismounting efficiency.

Description

Technical Field

[0001] This utility model relates to the field of disassembly and assembly devices, and provides a lifting vehicle for disassembling and assembling workpieces. Background Technology

[0002] Traction rods and anti-roll bars, as crucial connecting components between the bogie and car body of rail vehicles, play a vital role in transmitting traction / braking forces and suppressing car body roll. Due to their harsh working environment and complex stresses, they require regular inspection, replacement, or maintenance. Therefore, the disassembly and assembly of traction rods and anti-roll bars are routine operations in advanced vehicle maintenance and daily inspections. Traction rods are installed between the car body underframe traction seat and the bogie frame, while anti-roll bars are located on both sides of the bogie at the connection points with the car body torsion arms. These installation locations are generally situated in narrow areas between the car body and the bogie. These areas are space-constrained and often surrounded by brake lines, wiring ducts, sensor cables, and other suspension components, making manual crouching or bending operations extremely inconvenient and limiting visibility and operating angles.

[0003] Currently, maintenance personnel commonly use aerial work platforms as auxiliary equipment when disassembling and assembling tie rods and anti-roll bars. The disassembly / assembly tools are placed on the aerial work platform, and the platform's position is adjusted to position the tools below the tie rod or anti-roll bar to be disassembled, or to support the tie rod or anti-roll bar to be installed, ensuring the rod or anti-roll bar is positioned below its intended installation location. However, existing aerial work platforms have poor movement and flexibility during actual operation, and are limited by space constraints. Precise adjustment of the disassembly / assembly tools cannot be achieved solely through the platform's position adjustment. An additional horizontal adjustment mechanism is required on the aerial work platform. The platform is first adjusted to a rough position, then kept stationary while the disassembly / assembly tools are further adjusted using this mechanism. This process is cumbersome and inefficient.

[0004] Therefore, how to solve the problem of low disassembly and assembly efficiency caused by the cumbersome position adjustment process when disassembling and assembling traction rods or anti-roll rods in related technologies has become an important technical problem to be solved by those skilled in the art. Utility Model Content

[0005] This utility model provides a lifting vehicle for disassembling and assembling workpieces, which solves the problem of low disassembly and assembly efficiency caused by the cumbersome position adjustment process when disassembling and assembling traction rods or anti-roll rods in related technologies. It improves the flexibility and position adjustment accuracy of the lifting vehicle, thereby improving disassembly and assembly efficiency.

[0006] This utility model provides a lifting vehicle for disassembling and assembling workpieces, comprising: frame; A positioning fixture is slidably mounted on the frame in a vertical direction, and the positioning fixture is suitable for positioning and supporting the workpiece. A lifting drive device is adapted to drive the positioning fixture to slide back and forth relative to the frame; A drive wheel device is disposed at the bottom end of the frame. The drive wheel device is adapted to drive the frame to move in any direction within the reference plane and to drive the frame to rotate around the reference axis. The reference plane is perpendicular to the vertical direction of the frame, and the reference axis passes through the centroid of the bottom surface of the frame and is parallel to the vertical direction of the frame.

[0007] According to the present invention, a lifting vehicle for disassembling and assembling workpieces includes a drive wheel device comprising: Two pairs of Mecanum wheels are distributed longitudinally along the frame, and each pair of Mecanum wheels is distributed transversely along the frame. The axes of each pair of Mecanum wheels coincide, and the rollers of each pair of Mecanum wheels have different inclination directions. The two Mecanum wheels that are diagonally distributed in the two pairs of Mecanum wheels have the same inclination direction.

[0008] According to the present invention, a lifting vehicle for assembling and disassembling workpieces is provided, wherein the workpieces include: A traction rod, the traction rod having a rod body and joints disposed at both ends of the rod body, the joints being symmetrical about the central axis of the rod body; The positioning fixture includes: A support base is slidably connected to the frame, and the sliding direction of the support base relative to the frame is along the vertical direction of the frame; A pair of first support blocks are disposed on the support base, the pair of first support blocks are distributed longitudinally along the frame, and a first positioning groove is provided on the first support block, the first positioning groove being adapted for the tie rod body to be inserted.

[0009] According to the present invention, a lifting vehicle for disassembling and assembling workpieces includes a traction rod comprising: The first traction rod has a straight axis and a circular cross-sectional shape. The first positioning groove includes: The first groove has two inclined sidewalls that are laterally spaced along the frame. The two inclined sidewalls are angled together, and the distance between the two inclined sidewalls gradually increases in the direction away from the drive wheel device. The first groove is adapted to allow the pull rod body of the first traction rod to be embedded.

[0010] According to the present invention, a lifting vehicle for disassembling and assembling workpieces includes a traction rod comprising: The second traction rod has an axis extending along an arc, and a reinforcing rib is provided on the back side of the rod body of the second traction rod, the reinforcing rib extending along the axial direction of the rod body of the second traction rod. The first positioning slot also includes: The second groove is disposed on the side of the first groove near the drive wheel device. The second groove communicates with the first groove and has two vertical sidewalls that are distributed laterally along the frame. The second groove is adapted for embedding the reinforcing rib.

[0011] According to the lifting vehicle for assembling and disassembling workpieces provided by this utility model, the positioning fixture further includes: Two pairs of second support blocks are disposed on the support base along the longitudinal direction of the frame. The two pairs of second support blocks are distributed on both sides of a pair of first support blocks. Each pair of second support blocks is distributed at a lateral interval along the frame. Each second support block is provided with a second positioning groove on the side away from the drive wheel device. The second positioning groove is adapted for the insertion of the spindle on the side of the joint.

[0012] According to the present invention, a lifting vehicle for disassembling and assembling workpieces is provided, wherein the workpiece includes an anti-roll torsion bar, the anti-roll torsion bar has a torsion bar body, and the axis of the torsion bar body is a straight line; Each pair of second support blocks has a clamping groove on one side facing each other. The clamping groove is adapted to fit the torsion bar body. The second support block is slidably connected to the support base. The sliding direction of the second support block relative to the support base is along the transverse direction of the frame. The positioning fixture also includes: An adjustment mechanism is provided between each pair of the second support blocks, the adjustment mechanism being adapted to adjust the distance between each pair of the second support blocks.

[0013] According to the present invention, a lifting vehicle for disassembling and assembling workpieces is provided, wherein the second support block includes: A sliding part is slidably connected to the support base, and the sliding direction of the sliding part relative to the support base is along the transverse direction of the frame; the clamping groove is provided in the sliding part. A support portion is disposed on the side of the sliding portion away from the support base, and a second positioning groove is disposed on the support portion. The support portion and the sliding portion are detachably connected.

[0014] According to the present invention, a lifting vehicle for disassembling and assembling workpieces is provided, wherein the lifting drive device includes: An active rotating component is rotatably connected to the frame; The driven moving member is slidably connected to the frame, and the sliding direction of the driven moving member relative to the frame is along the vertical direction of the frame. The driven moving member is drivenly connected to the driving rotating member, and the positioning fixture is disposed on the driven moving member. A drive element adapted to drive the active rotating element to rotate relative to the frame.

[0015] According to the present invention, a lifting vehicle for disassembling and assembling workpieces includes a driving component comprising: A drive motor is mounted on the frame, and the output shaft of the drive motor is connected to the active rotating component in a transmission manner; And / or, a handwheel, which is connected to the drive rotating component, and the handwheel is detachably connected to the frame and the drive rotating component.

[0016] This utility model provides a lifting trolley for assembling and disassembling workpieces, comprising a frame, a positioning fixture, a lifting drive device, and a drive wheel device. The positioning fixture is mounted on the frame and can reciprocate along the vertical direction of the frame. The lifting drive device drives the positioning fixture to reciprocate relative to the frame, thereby lifting the positioning fixture. The positioning fixture is used to position and support the workpiece; when the workpiece is on the positioning fixture, it can rise and fall with the fixture relative to the frame. The drive wheel device is located at the bottom end of the frame and drives the frame to move in any direction within a reference plane and can also drive the frame to rotate around a reference axis. The reference plane is perpendicular to the vertical direction of the frame, and the reference axis passes through the centroid of the bottom surface of the frame and is parallel to the vertical direction of the frame. With this configuration, the drive wheel device can drive the frame to move longitudinally, laterally, and at any angle to the longitudinal direction of the frame. It can also drive the frame to rotate in place with zero radius. The lifting vehicle for disassembling and assembling workpieces provided by this utility model has high flexibility and can quickly and accurately adjust the position of the frame, thereby realizing the position adjustment of the positioning fixture. This is beneficial to improving disassembly and assembly efficiency and solves the problem of low disassembly and assembly efficiency caused by the cumbersome position adjustment process when disassembling and assembling traction rods or anti-roll rods in related technologies. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1This is a structural schematic diagram of the lifting vehicle for disassembling and assembling workpieces provided by this utility model, when supporting the first traction rod from one perspective (the Mecanum wheel is located inside the frame, and the reference numeral 2 in the figure only indicates the position of the Mecanum wheel).

[0019] Figure 2 This is a structural schematic diagram of the lifting vehicle for disassembling and assembling workpieces provided by this utility model, when supporting the first traction rod from another perspective (the Mecanum wheel is located inside the frame, and the reference numeral 2 in the figure only indicates the position of the Mecanum wheel).

[0020] Figure 3 This is a schematic diagram of the structure of the lifting vehicle for disassembling and assembling workpieces provided by this utility model when supporting the second traction rod (the Mecanum wheel is located inside the frame, and the reference numeral 2 in the figure only indicates the position of the Mecanum wheel).

[0021] Figure 4 This is a schematic diagram of the structure of the lifting vehicle for disassembling and assembling workpieces provided by this utility model when supporting the anti-roll torsion bar (the Mecanum wheel is located inside the frame, and the reference numeral 2 in the figure only indicates the position of the Mecanum wheel).

[0022] Figure 5 This is a schematic diagram of the positioning fixture provided by this utility model (the adjustment mechanism is not shown in the figure).

[0023] Figure label: 1. Frame; 2. Mecanum wheel; 3. Sliding frame; 4. First support block; 5. Tie rod; 6. Joint; 7. Spindle; 8. First groove; 9. Reinforcing rib; 10. Second groove; 11. Second positioning groove; 12. Torsion bar; 13. Clamping groove; 14. Adjustment mechanism; 15. Sliding part; 16. Support part; 17. Drive motor; 18. Handwheel; 19. Anti-collision strip. Detailed Implementation

[0024] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0025] The following is combined Figures 1 to 5 This invention describes a lifting vehicle for assembling and disassembling workpieces.

[0026] like Figures 1 to 5 As shown in the figure, the lifting vehicle for disassembling and assembling workpieces provided in this embodiment of the present invention includes a frame 1, a positioning fixture, a lifting drive device and a drive wheel device.

[0027] Specifically, frame 1 serves as a support. When frame 1 is located in a horizontal plane, its vertical direction is perpendicular to the horizontal plane. The transverse direction of frame 1 is perpendicular to its longitudinal direction, and both the transverse and longitudinal directions of frame 1 are perpendicular to its vertical direction. The transverse direction of frame 1 is as follows: Figure 1 The direction indicated by x in the middle, the longitudinal direction of frame 1 is as follows: Figure 1 The direction indicated by y in the middle, the vertical direction of frame 1 is as follows Figure 1 The direction indicated by z in the middle.

[0028] The positioning fixture is mounted on the frame 1 and can slide back and forth along the vertical direction of the frame 1. A lifting drive device is used to drive the positioning fixture to slide back and forth relative to the frame 1, so as to realize the lifting and lowering of the positioning fixture.

[0029] The positioning fixture is used to position and support the workpiece. When the workpiece is on the positioning fixture, the workpiece can be raised and lowered relative to the frame 1 along with the positioning fixture.

[0030] The drive wheel assembly is located at the bottom end of the frame 1. This assembly drives the frame 1 to move in any direction within the reference plane and rotates it around the reference axis. The reference plane is perpendicular to the vertical direction of the frame 1, and the reference axis passes through the centroid of the bottom surface of the frame 1 and is parallel to the vertical direction of the frame 1. When the frame 1 is in a horizontal plane, the reference plane is parallel to the horizontal plane, and the reference axis is vertical.

[0031] With this configuration, the drive wheel device can drive the frame 1 to move longitudinally, laterally, and at any angle to the longitudinal direction of the frame 1. It can also drive the frame 1 to rotate in place with zero radius. The lifting vehicle for disassembling and assembling workpieces provided in this embodiment of the utility model has high flexibility and can quickly and accurately adjust the position of the frame 1, thereby realizing the position adjustment of the positioning fixture. This is beneficial to improving disassembly and assembly efficiency and solves the problem of low disassembly and assembly efficiency caused by the cumbersome position adjustment process when disassembling and assembling traction rods or anti-roll rods in related technologies.

[0032] It should be noted that the lifting vehicle for disassembling and assembling workpieces provided in this embodiment of the utility model is only responsible for supporting and positioning the workpieces during the disassembly and assembly process, avoiding manual handling of the workpieces and preventing accidental drops of the workpieces.

[0033] When installing a workpiece, place the workpiece in the positioning fixture. Adjust the position of the frame 1 using the drive wheel device so that the workpiece on the positioning fixture is directly below the installation position. Use the lifting drive device to drive the positioning fixture upward, positioning the workpiece in the installation position. Then, manually install the workpiece in the installation position. After installation, use the lifting drive device to drive the positioning fixture downward, disengaging the positioning fixture from the workpiece.

[0034] When it is necessary to remove the workpiece, the position of the frame 1 is adjusted by the drive wheel device so that the positioning fixture is directly below the workpiece to be removed. The lifting drive device is then used to drive the positioning fixture to rise, so that the positioning fixture is in a position that supports the workpiece to be removed. Then, the workpiece is manually removed. After removal, the lifting drive device is used to drive the positioning fixture to descend, and the workpiece is removed as the positioning fixture descends.

[0035] The aforementioned drive wheel device may be configured as, but is not limited to, Mecanum wheel 2, omnidirectional wheel, or other structural forms.

[0036] In this embodiment, the drive wheel device is configured as a Mecanum wheel 2 structure. Specifically, the drive wheel device includes two pairs of Mecanum wheels 2.

[0037] Two pairs of Mecanum wheels 2 are spaced longitudinally along the frame 1, and each pair of Mecanum wheels 2 is spaced laterally along the frame 1. (Refer to...) Figure 1 The bottom of the frame 1 is rectangular, and two pairs of Mecanum wheels 2 are distributed at the corners of the bottom of the frame 1. The two pairs of Mecanum wheels 2 are symmetrical about the centroid of the bottom surface of the frame 1.

[0038] The axes of each pair of Mecanum wheels 2 coincide, and the axes of the two pairs of Mecanum wheels 2 are parallel. The rollers of each pair of Mecanum wheels 2 are tilted in opposite directions, and the rollers of the two diagonally distributed Mecanum wheels 2 in the two pairs of Mecanum wheels 2 are tilted in the same direction.

[0039] The Mecanum wheel 2 has a wheel body and rollers. The wheel body can rotate relative to the frame 1 on a fixed axis, which is driven by a motor. Multiple rollers are provided, which are arranged around the circumference of the wheel body. The rollers can rotate relative to the wheel body on a fixed axis. The rotation axis of the rollers relative to the wheel body is set at an angle to the axis of the wheel body. The rotation of the rollers relative to the wheel body is passive and has no independent driving force.

[0040] The four-wheel vector synthesis based on the kinematic model can control the movement and rotation of the frame 1 by controlling the rotation direction and speed of each Mecanum wheel 2. The specific control process is a mature existing technology and will not be described in detail here.

[0041] A braking device is installed between the Mecanum wheel 2 and the motor to brake the Mecanum wheel 2. After the position of the frame 1 is adjusted, each Mecanum wheel 2 is braked to ensure the stability of the frame 1.

[0042] The aforementioned workpieces may be, but are not limited to, traction rods and anti-roll torsion bars, provided that the structure of the positioning fixture is compatible with the workpiece.

[0043] The workpiece includes a traction rod, which has a rod body 5 and a joint 6. Both ends of the rod body 5 are provided with joints 6, and the joints 6 are symmetrical about the central axis of the rod body 5.

[0044] At this time, the positioning fixture includes a sliding frame 3 and a pair of first support blocks 4.

[0045] The sliding frame 3 is slidably connected to the frame 1, and the sliding direction of the sliding frame 3 relative to the frame 1 is along the vertical direction of the frame 1. A pair of first support blocks 4 are disposed on the sliding frame 3, and the pair of first support blocks 4 are distributed at intervals along the longitudinal direction of the frame 1. A first positioning groove is provided on the first support block 4, and the first positioning groove can be embedded in the pull rod body 5.

[0046] When the traction rod is placed in the positioning fixture, its axial direction is along the longitudinal direction of the frame 1. The rod body 5 of the traction rod is embedded in the first positioning groove of a pair of first support blocks 4. The pair of first support blocks 4 provide support at different positions along the axial direction of the traction rod.

[0047] The interaction between the pull rod body 5 and the side wall of the first positioning groove can prevent the traction pull rod from rolling off the positioning fixture, thus ensuring the stability of the traction pull rod on the positioning fixture.

[0048] Traction rods have various structural forms. One type of traction rod has a straight axis for its rod body 5, and its cross-sectional shape is circular. This type of traction rod is called a first traction rod. Figure 1 and Figure 2 As shown.

[0049] In this embodiment, the first positioning groove includes a first groove portion 8, which has two inclined sidewalls. The two inclined sidewalls are distributed laterally along the frame 1, and the space between the two inclined sidewalls is used to accommodate the pull rod body 5.

[0050] The two inclined sidewalls are set at an angle, and the distance between the two inclined sidewalls gradually increases in the direction away from the drive wheel assembly. That is, the distance between the two inclined sidewalls is the largest at the upper opening of the first groove 8 and the smallest at the bottom end of the first groove 8, as shown in the figure. Figure 5 The first groove 8 can be set as a V-shaped groove.

[0051] The first groove 8 is used for the rod body 5 of the first traction rod to be embedded. The first groove 8 is set as a V-shaped groove structure, which can adapt to rod bodies 5 of different diameters, making the lifting vehicle for disassembling and assembling workpieces provided in this embodiment more adaptable.

[0052] Another type of traction rod has a rod body 5 whose axis extends in an arc shape, and a reinforcing rib 9 is provided on the back side of the rod body 5, extending along the axial direction of the rod body 5. This type of traction rod is called a second traction rod, such as... Figure 3 As shown.

[0053] In this embodiment, the first positioning groove further includes a second groove 10, which is disposed on the side of the first groove 8 near the drive wheel device, that is, the second groove 10 is disposed below the first groove 8. The second groove 10 communicates with the first groove 8.

[0054] The second groove 10 has two vertical sidewalls, which are spaced laterally along the frame 1 and are connected to the inclined sidewalls. (Refer to...) Figure 5 The second groove 10 is a rectangular groove.

[0055] The second groove 10 is used for embedding the reinforcing rib 9. The second traction rod is placed on a pair of first support blocks 4 with the reinforcing rib 9 of the second traction rod facing downwards and embedded in the second groove 10. The second groove 10 is used to position and support the second traction rod. (Refer to...) Figure 3 .

[0056] In a further embodiment, the positioning fixture also includes two pairs of second support blocks, which are disposed on the sliding frame 3. Along the longitudinal direction of the frame 1, the two pairs of second support blocks are distributed on both sides of a pair of first support blocks 4.

[0057] Each pair of second support blocks is distributed at a lateral interval along the frame 1. Each second support block has a second positioning groove 11 on the side away from the drive wheel device, that is, the top of the second support block has a second positioning groove 11. The second positioning groove 11 is used for the mandrel 7 on the side of the joint 6 to be inserted.

[0058] Each pair of second support blocks provides positioning support for the spindles 7 on both sides of the joint 6, and the two pairs of second support blocks respectively support the spindles 7 of the joint 6 at both ends of the tie rod body 5.

[0059] The second support block and the first support block 4 simultaneously provide positioning support for the second traction rod, thereby improving the stability of the second traction rod.

[0060] The workpiece includes an anti-roll torsion bar, which has a torsion bar body 12. The axis of the torsion bar body 12 is a straight line, and the cross-section of the torsion bar body 12 is circular. Figure 4 As shown.

[0061] Each pair of second support blocks has a clamping groove 13 on one side facing each other. The clamping groove 13 is used to fit the torsion bar body 12 of the anti-roll torsion bar. The second support block is slidably connected to the sliding frame 3. The sliding direction of the second support block relative to the sliding frame 3 is along the transverse direction of the frame 1, so that each pair of second support blocks can move closer to each other or further away from each other, so that each pair of second support blocks clamps or releases the torsion bar body 12 of the anti-roll torsion bar.

[0062] While each pair of second support blocks clamps the torsion bar 12, the torsion bar 12 can be located in the first groove 8 of the first support block 4. The first support block 4 supports the torsion bar 12, which improves the stability of the anti-roll torsion bar.

[0063] At this time, the positioning fixture also includes an adjustment mechanism 14, which is disposed between the second support block and the sliding frame 3. The adjustment mechanism 14 is used to adjust the distance between each pair of second support blocks. When it is necessary to place the anti-roll bar in the positioning fixture or to remove the anti-roll bar from the positioning fixture, the adjustment mechanism 14 is used to increase the distance between each pair of second support blocks. When the anti-roll bar is placed in the positioning fixture and needs to be fixed, the adjustment mechanism 14 is used to decrease the distance between each pair of second support blocks.

[0064] Specifically, each pair of second support blocks corresponds to an adjustment mechanism 14. The adjustment mechanism includes an adjustment rod and an adjustment block. The adjustment rod passes through both ends of each pair of second support blocks, and a limiting part is provided at the end of the adjustment rod. The adjustment block and the limiting part are located on opposite sides of each pair of second support blocks, respectively. The other end of the adjustment rod is threadedly connected to the adjustment block. The adjustment block abuts against one of the second support blocks, and the limiting part abuts against the other second support block. Through the interaction between the adjustment block and the second support blocks, and the interaction between the limiting part and the second support blocks, the maximum distance between each pair of second support blocks can be limited. By rotating the adjustment rod, the maximum distance between each pair of second support blocks can be adjusted.

[0065] Before placing the anti-roll torsion bar between each pair of second support blocks, rotate the adjusting rod to increase the maximum distance between each pair of second support blocks, making the maximum distance between each pair of second support blocks greater than the diameter of the anti-roll torsion bar. After placing the anti-roll torsion bar between each pair of second support blocks, rotate the adjusting rod to decrease the maximum distance between each pair of second support blocks, making each pair of second support blocks clamp the anti-roll torsion bar.

[0066] In a further embodiment, the second support block includes a sliding portion 15 and a support portion 16.

[0067] The sliding part 15 is slidably connected to the sliding frame 3. The sliding direction of the sliding part 15 relative to the sliding frame 3 is along the transverse direction of the frame 1. The clamping groove 13 is provided in the sliding part 15. The support part 16 is provided on the side of the sliding part 15 away from the sliding frame 3. The second positioning groove 11 is provided in the support part 16. The support part 16 and the sliding part 15 are detachably connected.

[0068] Thus, by setting the second support block as a split structure, when disassembling and assembling the anti-roll torsion bar, only the sliding part 15 and the first support block 4 are needed. At this time, the support part 16 can be removed from the sliding part 15. When disassembling and assembling the second traction rod, the support part 16 and the first support block 4 are required. At this time, the support part 16 can be installed on the sliding part 15.

[0069] Specifically, a dovetail groove can be provided at the top of the sliding part 15, and a dovetail protrusion can be provided at the bottom of the support part 16. The dovetail protrusion and the dovetail groove cooperate to realize the detachable connection between the support part 16 and the sliding part 15.

[0070] In some embodiments, the sliding part 15 is detachably connected to the sliding frame 3, allowing the sliding part 15 to be removed from the sliding frame 3. When assembling or disassembling the first traction rod, only the first support block 4 is needed, at which point the sliding part 15 can be removed from the sliding frame 3.

[0071] Specifically, the disassembly and assembly structure of the sliding part 15 and the sliding frame 3 can be achieved by bolt connection.

[0072] Both the first support block 4 and the second support block mentioned above are made of nylon, which can avoid damage to the workpiece.

[0073] In this embodiment of the invention, the lifting drive device includes an active rotating component, a driven moving component, and a driving component.

[0074] The active rotating component is rotatably connected to the frame 1, and the driving component is used to drive the active rotating component to rotate relative to the frame 1. The driven moving component is slidably connected to the frame 1, and the sliding direction of the driven moving component relative to the frame 1 is along the vertical direction of the frame 1. The driven moving component is drively connected to the active rotating component.

[0075] The active rotating component is driven to rotate relative to the frame 1 by a driving component. Based on the transmission connection between the active rotating component and the driven moving component, the driven moving component can be driven to slide vertically along the frame 1. The positioning fixture is set on the driven moving component, thereby realizing the lifting and lowering of the positioning fixture.

[0076] In some embodiments, the aforementioned active rotating component can be a lead screw, with its axis parallel to the vertical direction of the frame 1, and the driven moving component is a nut, with the lead screw and nut connected in a transmission connection. That is, the lifting drive device can be configured as a lead screw and nut transmission structure. This lead screw and nut transmission structure offers high precision and enables accurate adjustment of the lifting position of the positioning fixture.

[0077] In other embodiments, the aforementioned driving rotating component can be a gear, with the gear's axis perpendicular to the vertical direction of the frame 1. The driven moving component is a rack, and the gear and rack are connected in a transmission connection. That is, the lifting drive device can be configured as a gear and rack transmission structure.

[0078] In this embodiment, the driving component includes a drive motor 17 and / or a handwheel 18.

[0079] The drive motor 17 is mounted on the frame 1. The output shaft of the drive motor 17 is connected to the active rotating component for transmission. The drive motor 17 can drive the active rotating component to rotate.

[0080] The handwheel 18 is connected to the drive rotating component. When torque is applied to the handwheel 18 manually, the handwheel 18 can drive the drive rotating component to rotate.

[0081] The driving component may consist only of the drive motor 17, which alone drives the active rotating component. Alternatively, the driving component may consist only of the handwheel 18, which alone drives the active rotating component. The driving component may also include both the drive motor 17 and the handwheel 18; when the drive motor 17 is functioning normally, it drives the active rotating component; when the drive motor 17 malfunctions, the handwheel 18 drives the active rotating component.

[0082] The handwheel 18 is detachably connected to the frame 1 and the drive rotating component. When the drive motor 17 is operating normally, the handwheel 18 can be removed. When the drive motor 17 fails, the handwheel 18 is installed on the frame 1 and the drive rotating component to drive the drive rotating component.

[0083] The handwheel 18 is connected to the shaft of the driving rotating component via a spline, which ensures that torque can be transmitted between the handwheel 18 and the driving rotating component, and also facilitates the disassembly and assembly of the handwheel 18.

[0084] Specifically, when the lifting drive device is configured as a gear and rack transmission structure, a drive motor 17 can be installed on one side of the gear and a handwheel 18 can be installed on the other side of the gear.

[0085] When the lifting drive device is configured as a lead screw and nut transmission structure, a gearbox can be installed at the upper end of the lead screw. The gearbox has two coaxially fixed input shafts and one output shaft. The axis of the gearbox's output shaft is perpendicular to the axis of the input shafts. The axis of the gearbox's output shaft coincides with the axis of the lead screw. The output shaft of the drive motor 17 is fixedly connected to one input shaft of the gearbox, and the other input shaft of the gearbox is used to be fixedly connected to the handwheel 18.

[0086] The aforementioned drive motor 17 is a motor without self-locking or braking function. When the drive motor 17 malfunctions, the output shaft of the drive motor 17 can still rotate when subjected to external force.

[0087] A guide device is also provided between the positioning fixture and the frame 1. The guide device is used to guide the sliding of the positioning fixture relative to the frame 1 to determine the stability of the positioning fixture.

[0088] The guiding device may be, but is not limited to, in the form of a guide rail.

[0089] Sensors can be equipped on lifting vehicles used for assembling and disassembling workpieces to detect the lifting displacement of positioning fixtures.

[0090] A bumper strip 19 is also provided on the bottom side wall of the frame 1 to buffer and absorb energy when the bottom of the frame 1 collides with the outside world, so as to avoid damage to the frame 1.

[0091] In summary, the lifting vehicle for disassembling and assembling workpieces provided in this embodiment of the present invention integrates a Mecanum omnidirectional moving system, a lifting drive device, and a multi-component universal positioning fixture, which can effectively solve the problem of precise disassembly and assembly in complex spaces.

[0092] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A lifting vehicle for assembling and disassembling workpieces, characterized in that, include: Rack (1); The positioning fixture is slidably disposed on the frame (1) in a vertical direction, and the positioning fixture is suitable for positioning and supporting the workpiece. The lifting drive device is adapted to drive the positioning fixture to slide back and forth relative to the frame (1); A drive wheel device is provided at the bottom end of the frame (1). The drive wheel device is adapted to drive the frame (1) to move in any direction within the reference plane and to drive the frame (1) to rotate around the reference axis. The reference plane is perpendicular to the vertical direction of the frame (1). The reference axis passes through the centroid of the bottom surface of the frame (1) and is parallel to the vertical direction of the frame (1).

2. The lifting vehicle for assembling and disassembling workpieces according to claim 1, characterized in that, The drive wheel device includes: Two pairs of Mecanum wheels (2) are distributed longitudinally along the frame (1), and each pair of Mecanum wheels (2) is distributed transversely along the frame (1). The axes of each pair of Mecanum wheels (2) coincide, and the rollers of each pair of Mecanum wheels (2) have different inclination directions. The rollers of the two Mecanum wheels (2) distributed diagonally in the two pairs of Mecanum wheels (2) have the same inclination direction.

3. The lifting vehicle for disassembling and assembling workpieces according to claim 1, characterized in that, The workpiece includes: A traction rod, the traction rod having a rod body (5) and joints (6) disposed at both ends of the rod body (5), the joints (6) being symmetrical about the central axis of the rod body (5); The positioning fixture includes: The sliding frame (3) is slidably connected to the frame (1), and the sliding direction of the sliding frame (3) relative to the frame (1) is along the vertical direction of the frame (1); A pair of first support blocks (4) are provided on the sliding frame (3). The pair of first support blocks (4) are distributed at longitudinal intervals along the frame (1). A first positioning groove is provided on the first support block (4). The first positioning groove is suitable for the tie rod body (5) to be embedded.

4. The lifting vehicle for disassembling and assembling workpieces according to claim 3, characterized in that, The traction rod includes: The first traction rod has a straight axis for its rod body (5) and a circular cross-sectional shape for its rod body (5). The first positioning groove includes: The first groove (8) has two inclined sidewalls that are laterally spaced along the frame (1), the two inclined sidewalls are set at an angle, and the distance between the two inclined sidewalls gradually increases in the direction away from the drive wheel device. The first groove (8) is adapted to allow the pull rod body (5) of the first traction pull rod to be embedded.

5. The lifting vehicle for assembling and disassembling workpieces according to claim 4, characterized in that, The traction rod includes: The second traction rod has an axis extending along an arc, and a reinforcing rib (9) is provided on the back side of the rod body (5) of the second traction rod, the reinforcing rib (9) extending along the axis of the rod body (5) of the second traction rod. The first positioning slot also includes: The second groove (10) is disposed on the side of the first groove (8) near the drive wheel device. The second groove (10) communicates with the first groove (8). The second groove (10) has two vertical sidewalls that are distributed laterally along the frame (1). The second groove (10) is adapted for the embedding of the reinforcing rib (9).

6. The lifting vehicle for assembling and disassembling workpieces according to claim 5, characterized in that, The positioning fixture also includes: Two pairs of second support blocks are provided on the sliding frame (3) along the longitudinal direction of the frame (1). The two pairs of second support blocks are distributed on both sides of a pair of first support blocks (4). Each pair of second support blocks is distributed at a lateral interval along the frame (1). Each second support block is provided with a second positioning groove (11) on the side away from the drive wheel device. The second positioning groove (11) is adapted to allow the spindle (7) on the side of the joint (6) to be inserted.

7. The lifting vehicle for assembling and disassembling workpieces according to claim 6, characterized in that, The workpiece includes an anti-roll torsion bar, the anti-roll torsion bar having a torsion bar body (12), the axis of the torsion bar body (12) being a straight line; Each pair of second support blocks has a clamping groove (13) on one side facing each other. The clamping groove (13) is adapted to be matched with the torsion bar body (12). The second support block is slidably connected to the sliding frame (3). The sliding direction of the second support block relative to the sliding frame (3) is along the transverse direction of the frame (1). The positioning fixture also includes: An adjustment mechanism (14) is provided between each pair of the second support blocks, the adjustment mechanism (14) being adapted to adjust the distance between each pair of the second support blocks.

8. The lifting vehicle for disassembling and assembling workpieces according to claim 7, characterized in that, The second support block includes: The sliding part (15) is slidably connected to the sliding frame (3). The sliding direction of the sliding part (15) relative to the sliding frame (3) is along the transverse direction of the frame (1). The clamping groove (13) is provided on the sliding part (15). A support part (16) is provided on the side of the sliding part (15) away from the sliding frame (3), and a second positioning groove (11) is provided on the support part (16). The support part (16) and the sliding part (15) are detachably connected.

9. The lifting vehicle for assembling and disassembling workpieces according to any one of claims 1-8, characterized in that, The lifting drive device includes: An active rotating component is rotatably connected to the frame (1); The driven moving part is slidably connected to the frame (1), the sliding direction of the driven moving part relative to the frame (1) is along the vertical direction of the frame (1), the driven moving part is drivenly connected to the active rotating part, and the positioning fixture is disposed on the driven moving part; A drive element adapted to drive the active rotating element to rotate relative to the frame (1).

10. The lifting vehicle for assembling and disassembling workpieces according to claim 9, characterized in that, The driving component includes: A drive motor (17) is mounted on the frame (1), and the output shaft of the drive motor (17) is connected to the active rotating component via a transmission connection. And / or, the handwheel (18) is connected to the active rotating component, and the handwheel (18) is detachably connected to the frame (1) and the active rotating component.

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