Frame turnover device

Abstract

The utility model relates to a frame turnover device which comprises an electric hoist, a cross beam assembly and turnover mechanisms, the electric hoist is downwards connected with the cross beam assembly through a lifting hook, the turnover mechanisms are adjustably arranged at the two ends of the cross beam assembly, and the turnover mechanisms at the two ends are symmetrically arranged; the turnover mechanism comprises a connecting vertical rod, a frame seat, a turnover assembly and a locking handle, the upper end of the connecting vertical rod is adjustably connected with the end of the cross beam assembly, the lower end of the connecting vertical rod is fixedly connected with the frame seat, and the turnover assembly is arranged in the frame seat in a front-back sliding mode; the overturning assembly comprises a sliding unit, an overturning shaft, an overturning hand wheel and an overturning plate used for being connected with the frame, a locking handle used for limiting sliding of the overturning assembly is arranged on the sliding unit, the overturning shaft is rotationally arranged above the sliding unit, and the two ends of the overturning shaft extend out of the frame base and are connected with the overturning hand wheel and the overturning plate respectively. The vehicle frame overturning device is small and light in structure, convenient to move, free of occupying ground space in a hanging mode and capable of achieving rapid overturning of a vehicle frame on a welding production line in the production process.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle chassis manufacturing, in particular to a vehicle frame turning device. Background Art

[0002] The frame of the vehicle chassis can be welded through the welding production line. The welding operation must be performed on the front and back sides of the frame. Therefore, the production line is equipped with a flipping device for the frame, which can realize the forward and reverse rotation of the frame to facilitate the comprehensive welding of the frame.

[0003] Conventional flipping devices have complex structures and fixed positions, and can only be used for models on the fixed production line. The flipping device occupies a large area and has a relatively high investment cost. For example, the frame flip welding tool disclosed in patent publication number CN219542192U has a complex structure and is arranged on the ground, occupies a large area, and has a complex structure, which makes the fixing and flipping operations of the frame cumbersome.

[0004] For example, the patent publication number CN210789782U discloses a sub-frame welding tool, in which the support part is placed on the ground, which will occupy the production site space, and the tool structure is also relatively complex, the operation steps are cumbersome, and it is difficult to quickly realize the loading and unloading of the frame and the tool. Therefore, a frame flipping device with a simple structure, which does not occupy the ground space and can be quickly operated and flipped is needed. Summary of the invention

[0005] In order to solve the problems that conventional turning devices have a complex structure, occupy a large space, and have complicated turning operations, the utility model provides a frame turning device, which can realize a compact and light turning structure, does not occupy ground space, has a low investment cost, and can solve the problem of complicated turning operations during the frame production process on the welding production line.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A frame turning device comprises an electric hoist, a beam assembly and a turning mechanism, wherein the electric hoist is connected to the beam assembly downward through a hook to facilitate the lifting of the beam assembly, and the turning mechanisms are adjustable at both ends of the beam assembly, and the turning mechanisms at both ends are symmetrically arranged to facilitate changing the spacing between the turning mechanisms;

[0008] The flip mechanism comprises a connecting vertical rod, a frame seat, a flip assembly and a locking handle. The upper end of the connecting vertical rod is adjustably connected to the end of the crossbeam assembly, and the lower end of the connecting vertical rod is fixedly connected to the frame seat. The flip assembly is slidably arranged in the frame seat. The flip assembly is conveniently connected to the frame and flips the frame.

[0009] The flip assembly includes a sliding unit, a flip shaft, a flip hand wheel and a flip plate for connecting to a vehicle frame. The sliding unit is provided with a locking handle for limiting the sliding of the flip assembly, so as to facilitate controlling the position of the flip assembly. The flip shaft is rotatably arranged above the sliding unit, and both ends of the flip shaft extend out of the frame seat and are respectively connected to the flip hand wheel and the flip plate. The flip hand wheel, the flip shaft and the flip plate rotate together.

[0010] Furthermore, the beam assembly includes a beam body, lifting ears, adjustment holes and a limiting end plate. Two lifting ears are arranged on the beam body at intervals, and the two lifting ears are arranged in the center. There are two electric hoists, and each electric hoist is connected to one lifting ear through a hook, which facilitates the connection between the beam assembly and the electric hoist and ensures the balance of the hook.

[0011] Furthermore, each end of the cross beam body is provided with a plurality of adjustment holes arranged in a straight line, so as to facilitate changing the installation position of the connecting vertical rod, and the end of the cross beam body is provided with the limiting end plate to prevent the connecting vertical rod from being separated from the cross beam body;

[0012] The cross-section of the upper end of the connecting vertical rod is in the shape of a "mouth", and the upper end of the connecting vertical rod is passed through the end of the crossbeam body. A pin shaft is passed between the upper end of the connecting vertical rod and any of the adjusting holes. The locking and unlocking of the connecting vertical rod can be conveniently controlled by plugging and pulling out the pin shaft.

[0013] Furthermore, the frame seat is in a hollow square box shape, which is convenient for providing a space for placing the flip assembly. The sliding unit is arranged in the frame seat, and the sliding unit includes a slide rail, a slider and a slide plate. The slider is slidably arranged on the slide rail, and the slide plate is arranged above the slider.

[0014] A locking block is also provided below the sliding plate. The locking block is arranged around three sides of the sliding rail. The locking handle is provided on the locking block. The locking handle is a tightening handle. The head of the locking handle is tightly against the sliding rail, which facilitates the locking and unlocking of the sliding plate.

[0015] Furthermore, two bearing seats are arranged above the sliding plate, and the flip shaft is rotatably arranged between the two bearing seats to ensure the stability of the rotation of the flip shaft. The flip shaft only rotates and does not move axially. Because there is a retaining spring in the bearing seat, the axial movement of the flip shaft can be avoided. The axial direction of the flip shaft is consistent with the length direction of the crossbeam assembly.

[0016] The flip plate is bolted to the end of the flip shaft to facilitate disassembly, assembly and replacement of the flip plate. The flip plate includes a plate body and locating pins symmetrically arranged at both ends of the plate body, and the locating pins are inserted into the process holes of the frame.

[0017] Through the above technical solution, the beneficial effects of the utility model are:

[0018] The utility model has a reasonable structural design. Instead of using a floor-standing flipping device, the flipping device is suspended. The electric hoist can drive the crossbeam assembly and the flipping mechanism to move up and down together. The structure is compact and light, easy to move, and can also reduce the occupied space. The flipping mechanism is adjustably installed at the end of the crossbeam assembly, and then the distance between the two flipping mechanisms is adjustable, which can adapt to frames of different lengths.

[0019] The flip assembly of the utility model can slide forward and backward, and the locking and unlocking of the flip assembly can be achieved through the locking handle, which can facilitate the connection and fixation with the frame, and can prevent the frame from falling off due to the axial movement of the flip shaft during the flipping process. The entire flipping device is connected to the frame through a flip plate with a positioning pin, and different types of frames can be applied by changing the specifications of the flip plate. When the frame is flipped, two operators cooperate with each other to flip the frame together, and the flipping is fast and convenient.

[0020] The utility model can satisfy the flipping operation of frames of different lengths and widths by adjusting the distance between the two flipping mechanisms and the specification type of the flipping plate. The specification type of the flipping plate is the different positions and quantities of the positioning pins, and has the advantages of balanced flipping and fast flipping operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The utility model is an axonometric diagram of a vehicle frame turning device.

[0022] Figure 2 It is a front view of a frame turning device of the utility model.

[0023] Figure 3 The utility model is a schematic diagram of the installation of a turning mechanism of a frame turning device.

[0024] Figure 4 The utility model is a front view of a turning mechanism of a frame turning device.

[0025] Figure 5 The utility model discloses an axonometric diagram of a turning mechanism of a frame turning device.

[0026] Figure 6 The utility model is a schematic diagram of a sliding unit of a frame turning device.

[0027] Figure 7 The utility model is a schematic diagram of a frame turning state of a frame turning device.

[0028] The numbers in the accompanying drawings are: 1 beam assembly, 101 beam body, 102 lifting ear, 103 adjustment hole, 104 limit end plate, 2 flip mechanism, 3 connecting vertical rod, 4 frame seat, 6 locking handle, 71 slide rail, 72 slider, 73 sliding plate, 8 flip shaft, 9 flip hand wheel, 10 flip plate, 11 plate body, 12 positioning pin, 13 locking block, 14 bearing seat. DETAILED DESCRIPTION

[0029] The specific implementation of the utility model is described in detail below with reference to the accompanying drawings:

[0030] like Figure 1 to Figure 7 As shown, a frame turning device includes an electric hoist, a beam assembly 1 and a turning mechanism 2. The electric hoist is connected to the beam assembly 1 through a hook downward, and the electric hoist can control the up and down movement of the beam assembly 1. Figure 1 and Figure 2 As shown, the electric hoist is not shown in the figure.

[0031] The crossbeam assembly 1 includes a crossbeam body 101, a lifting lug 102, an adjustment hole 103, and a limit end plate 104. The crossbeam body 101 is a square tube structure, and two lifting lugs 102 are arranged at intervals on the crossbeam body 101, and the two lifting lugs 102 are arranged in the center; there are two electric hoists, each of which is connected to a lifting lug 102 through a hook, and the synchronous operation of the two sets of electric hoists drives a crossbeam assembly 1 to rise and fall, ensuring that the crossbeam assembly 1 is in a hoisting balance state.

[0032] Each end of the cross beam body 101 is provided with a plurality of adjustment holes 103 arranged in a straight line, and a limit end plate 104 is provided at the end of the cross beam body 101, and the cross section of the limit end plate 104 is larger than the cross section of the cross beam body 101. The positional relationship of the components in the cross beam assembly 1 is: the adjustment hole 103 is arranged between the limit end plate 104 and the lifting lug 102.

[0033] The two ends of the crossbeam assembly 1 are adjustable with a flip mechanism 2, and the flip mechanisms 2 at both ends are arranged symmetrically. The above adjustable setting indicates that the installation position of the flip mechanism 2 is adjustable, and then the spacing between the flip mechanisms 2 at both ends can be changed, which can be suitable for flipping frames of different lengths.

[0034] The flip mechanism 2 includes a connecting vertical rod 3, a frame seat 4, a flip assembly and a locking handle 6. Figure 3As shown in the figure. The upper end of the connecting vertical rod 3 is adjustably connected to the end of the crossbeam assembly 1. Specifically, the cross-section of the upper end of the connecting vertical rod 3 is in the shape of a "mouth". The upper end of the connecting vertical rod 3 passes through the end of the crossbeam main body 101, and the connecting vertical rod 3 can slide left and right along the crossbeam main body 101. To achieve the locking of the sliding, a pin shaft is inserted between the upper end of the connecting vertical rod 3 and any adjustment hole 103. The pin shaft can fix the position of the connecting vertical rod 3. When the pin shaft is pulled out, the connecting vertical rod 3 can continue to move and change its position on the crossbeam main body 101.

[0035] The lower end of the connecting vertical rod 3 is fixedly connected to the frame seat 4, and the connection position is located at the end of the frame seat 4. The frame seat 4 is a hollow square box shape and has a certain storage space where the flipping assembly can be arranged. Specifically, a flipping assembly is slidably arranged back and forth inside the frame seat 4. The flipping assembly can move back and forth relative to the frame seat 4, and the flipping assemblies at both ends of the crossbeam assembly 1 can approach or move away from each other.

[0036] The flipping assembly is used to realize the flipping of the vehicle frame. The flipping assembly includes a sliding unit, a flipping shaft 8, a flipping handwheel 9, and a flipping plate 10 for connecting the vehicle frame, as Figure 4 and Figure 5 shown in the figure. The flipping assembly is slidably installed through the sliding unit. The sliding unit is arranged inside the frame seat 4. The sliding unit itself can slide, and thus drives the flipping assembly to slide back and forth.

[0037] The sliding unit includes a slide rail 71, a slider 72, and a sliding plate 73. The number of slide rails 71 is two. Two sliders 72 are slidably arranged on each slide rail 71. A sliding plate 73 is arranged between the four sliders 72 above. Therefore, the sliding plate 73 can slide, as Figure 6 shown in the figure.

[0038] To achieve the locking of the sliding, a locking handle 6 for restricting the sliding of the flipping assembly is arranged on the sliding unit. Specifically, two locking blocks 13 are further arranged below the sliding plate 73. The cross-section of each locking block 13 is in the shape of an inverted "凵" and surrounds the three-week side of the slide rail 71. The locking handle 6 is arranged on the locking block 13. The locking handle 6 is a set screw handle. The head of the locking handle 6 abuts tightly against the slide rail 71, and the locking of the sliding plate 73 can be achieved. To facilitate the operation of the locking handle 6, holes are opened on the two side walls of the frame seat 4, aiming to expose the locking handle 6 without obstruction, so that workers can operate it conveniently.

[0039] The flip shaft 8 is rotatably arranged above the sliding unit, that is, two bearing seats 14 are arranged above the sliding plate 73, and the flip shaft 8 is rotatably arranged between the two bearing seats 14, and the axial direction of the flip shaft 8 is consistent with the length direction of the crossbeam assembly 1. Both ends of the flip shaft 8 extend out of the frame seat 4, and are respectively connected to the flip hand wheel 9 and the flip plate 10. Here, both ends of the frame seat 4 are open to facilitate the extension of the flip shaft 8. The rotation of the flip shaft 8 can be controlled by the flip hand wheel 9, and the flip plate 10 rotates with the flip shaft 8.

[0040] When installing, the flip plate 10 is bolted to the end of the flip shaft 8. The flip plate 10 includes a plate body 11 and positioning pins 12 symmetrically arranged at both ends of the plate body 11. The positioning pins 12 are inserted into the process holes of the frame to realize the connection between the entire flip device and the frame, thereby facilitating the flipping operation of the frame.

[0041] The principle of the utility model is: the frame flipping device is arranged on the welding production line, and the frame flipping device is at the flipping station. Figure 7 As shown, when the trolley on the production line drives the frame whose front side has been welded to move, after moving to the flipping station: the electric hoist controls the flipping mechanism 2 to descend, and the flipping mechanism 2 stops when it descends to both ends of the frame, and the flipping assembly is pushed forward manually to ensure that the locating pin 12 on the flipping plate 10 is inserted into the process hole at the end of the frame, and then the locking handle 6 is operated to fix the position of the flipping plate 10, thereby locking the flipping mechanism 2 and the frame.

[0042] The electric hoist controls the flipping mechanism 2 to rise, and the frame also rises and leaves the trolley on the production line; at this time, two people operate the flipping handwheel 9 at the same time to drive the frame to flip, and flip the back of the frame upward. Then the electric hoist controls the flipping mechanism 2 to descend, and the frame also descends and falls on the trolley. At this time, the flip plate 10 is unlocked by the locking handle 6, and the flip shaft 8 is manually pulled backward to cause the positioning pin 12 to detach from the frame, thereby realizing the rapid flipping operation of a frame. The trolley on the production line continues to drive the flipped frame to move to the next station.

[0043] The utility model is equivalent to a hanging arrangement under the hook of the electric hoist, which does not occupy the ground space. The electric hoist is hooked and connected with a steel wire rope, and the flip mechanism 2 can move together with the crossbeam assembly 1 to adapt to the position of the frame. The spacing between the two flip mechanisms 2 is adjustable, which can adapt to the flipping operation of frames of different lengths. The flip plate 10 is bolted and can be detachably connected to the flip shaft 8. By changing the spacing between the two positioning pins 12, flip plates 10 of different specifications can be made, which can be connected and installed with frames of different specifications.

[0044] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A frame turning device, characterized in that: It comprises an electric hoist, a crossbeam assembly (1) and a turning mechanism (2), wherein the electric hoist is connected downwardly to the crossbeam assembly (1) via a hook, and the turning mechanisms (2) are adjustably provided at both ends of the crossbeam assembly (1), and the turning mechanisms (2) at both ends are symmetrically arranged; The flip mechanism (2) comprises a connecting vertical rod (3), a frame seat (4), a flip assembly and a locking handle (6); the upper end of the connecting vertical rod (3) is adjustably connected to the end of the crossbeam assembly (1); the lower end of the connecting vertical rod (3) is fixedly connected to the frame seat (4); and the flip assembly is slidably arranged in the frame seat (4) forward and backward. The flip assembly comprises a sliding unit, a flip shaft (8), a flip hand wheel (9) and a flip plate (10) for connecting to a vehicle frame. The sliding unit is provided with a locking handle (6) for limiting the sliding of the flip assembly. The flip shaft (8) is rotatably arranged above the sliding unit. Both ends of the flip shaft (8) extend out of a frame seat (4) and are respectively connected to the flip hand wheel (9) and the flip plate (10).

2. A frame turning device according to claim 1, characterized in that: The crossbeam assembly (1) comprises a crossbeam body (101), a lifting eye (102), an adjustment hole (103) and a limit end plate (104); two lifting eyes (102) are arranged at intervals on the crossbeam body (101), and the two lifting eyes (102) are arranged in the center; there are two electric hoists, and each electric hoist is connected to one lifting eye (102) via a hook.

3. A vehicle frame turning device according to claim 2, characterized in that: Each end of the crossbeam body (101) is provided with a plurality of adjustment holes (103) arranged in a straight line, and the end of the crossbeam body (101) is provided with the limiting end plate (104); The cross section of the upper end of the connecting vertical rod (3) is in the shape of a "mouth", the upper end of the connecting vertical rod (3) is inserted through the end of the crossbeam body (101), and a pin is inserted between the upper end of the connecting vertical rod (3) and any one of the adjusting holes (103).

4. A frame turning device according to claim 1, characterized in that: The frame seat (4) is in the shape of a hollow square box. The sliding unit is arranged inside the frame seat (4). The sliding unit comprises a sliding rail (71), a sliding block (72) and a sliding plate (73). The sliding block (72) is slidably arranged on the sliding rail (71), and the sliding plate (73) is arranged above the sliding block (72). A locking block (13) is also provided below the sliding plate (73). The locking block (13) is arranged around three sides of the slide rail (71). The locking handle (6) is provided on the locking block (13). The locking handle (6) is a tightening handle, and the head of the locking handle (6) is tightly against the slide rail (71).

5. A frame turning device according to claim 4, characterized in that: Two bearing seats (14) are arranged above the sliding plate (73), and the flip shaft (8) is rotatably arranged between the two bearing seats (14), and the axial direction of the flip shaft (8) is consistent with the length direction of the crossbeam assembly (1); The flip plate (10) is bolted to the end of the flip shaft (8), and the flip plate (10) comprises a plate body (11) and positioning pins (12) symmetrically arranged at both ends of the plate body (11), and the positioning pins (12) are inserted into process holes of the vehicle frame.

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