Chassis mounting line and mine truck assembly line

Abstract

The invention belongs to the technical field of vehicle assembly, and particularly relates to a chassis mounting line and a mine truck assembly line. The AGV shuttle line and the AGVs are arranged among the multiple sets of mounting stations, the AGVs move back and forth among the multiple sets of mounting stations, each set of mounting station is provided with a supporting tool, the supporting tools are symmetrically arranged on the two sides of the AGV shuttle line, each mounting station is further provided with a transferring mechanism and a tightening machine, the position changing machine is used for turning over a vehicle frame, and the AGV shuttle line is used for driving the AGV shuttle line to move back and forth. The caching station is used for mounting and caching the overturned to-be-assembled component; and the transfer mechanism is used for transferring the to-be-assembled part to the mounting station. The mode of AGV + drag chain line + plate chain line is adopted, so that the high integration level of the whole assembly production is realized, and the manufacturing cost of the production line is greatly reduced; in the chassis installation production line, all the installation stations are matched with the AGV, the vehicle frame is supported through the supporting tool, installation is convenient, and the efficiency of the assembly process is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of vehicle assembly, and in particular relates to a chassis installation line and a mining truck assembly line. Background Art

[0002] The automobile assembly process involves multiple steps. Traditional assembly production lines generally use conveyors or conveyor lines such as drag chains, skateboards, and plate chains to transport the car bodies to be assembled. However, the above-mentioned conveying methods have fixed lines, occupy a large area, and have poor flexibility. Summary of the invention

[0003] In view of the above problems existing in the prior art, the present invention provides a chassis installation line and a mining truck assembly line, which can achieve low cost and high efficiency in vehicle assembly.

[0004] To achieve the above object, the technical solution provided by the present invention is as follows: In the first aspect, the present application provides a chassis installation line, including installation stations, positioners and cache stations, wherein the installation stations are arranged in multiple groups, AGV shuttle lines and AGVs are provided between the multiple groups of installation stations, the AGVs reciprocate between the multiple groups of installation stations, each group of installation stations is provided with supporting tooling, and the supporting tooling is symmetrically arranged on both sides of the AGV shuttle line. The installation stations are also provided with transfer mechanisms and tightening machines, the positioners are used to flip the frame, and the cache stations are used to install and cache the components to be transferred after flipping; the transfer mechanism is used to transfer the components to be assembled to the installation station.

[0005] Optionally, four groups of installation stations are provided, and two groups of AGVs are provided between the four groups of installation stations.

[0006] Optionally, the AGV is provided with a lifting mechanism, the lifting mechanism is provided with a limit block for preventing the frame from falling, and the lifting mechanism is used to lift the frame from the supporting tooling or place the frame on the supporting tooling.

[0007] Optionally, the four groups of installation stations include a first installation station, a second installation station, a third installation station and a fourth installation station arranged in sequence, the first installation station is used for the installation of balancing suspension, rear leaf spring and guide plate; the second installation station is used for the installation of thrust rods, center and rear axle components and inter-axle transmission shafts; the third installation station is used for the installation of front axle components, cylinders and front thrust rods; the fourth installation station is used for tightening thrust rods and installing windshield brackets.

[0008] Optionally, the positioner is provided with a clamp for clamping the frame.

[0009] Optionally, a tightening machine is also provided at the installation station, and the tightening machine is used for assembling and tightening components.

[0010] Optionally, the cache station is provided with a hoisting crane, and the cache station is used for installing the rear taillights, connecting the front and rear axle air pipes, installing the lifting cylinder and the support, installing the bumper and the towing hook, and caching the frame.

[0011] On the second aspect, the present application also provides a mining truck assembly line, including the above-mentioned chassis installation line, accessory assembly line and cab installation line, the accessory assembly line includes a drag chain line and an accessory assembly station coordinated with the drag chain line, the cab installation line includes a plate chain line and a cab assembly station coordinated with the plate chain line, the unloading end of the chassis installation line is connected to the drag chain line through a transfer equipment, and the unloading end of the drag chain line is connected to the plate chain line.

[0012] Optionally, the accessory assembly station is provided with a lifting device and a tightening machine.

[0013] Optionally, the drag chain line adopts an intermittent operation mode.

[0014] Compared with the prior art, this application has at least the following beneficial effects: The present invention adopts the AGV+drag chain line+plate chain line in the design of the entire mining truck assembly production line, which not only realizes the high integration of the entire assembly production, but also greatly reduces the production cost of the production line; in the chassis installation production line, each installation station is coordinated with the AGV, and the frame is supported by supporting tooling, which is easy to install and greatly improves the efficiency of the assembly process. The AGV and the positioner are flexible to connect, which effectively improves the production capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 This is a schematic diagram of the structure of the installation station in the embodiment of the present application; Figure 2 This is a schematic diagram of the process of the mining truck assembly line of Example 3 of the present application; Figure 3 This is a schematic diagram of the assembly state of the first installation work in Example 2 of the present application; Figure 4 This is a schematic diagram of the second installation work assembly state in Example 2 of the present application; Figure 5 This is a schematic diagram of the third installation work assembly state in Example 2 of the present application; Figure 6This is a schematic diagram of the fourth installation work assembly state in Example 2 of the present application; Figure 7 This is a schematic diagram of the working assembly state of the positioner in Example 2 of the present application; Figure 8 This is a schematic diagram of the structure of the towline and plate chain line in Example 3 of the present application; Description of reference numerals: Support tooling; 2. AGV; 3. Positioner; 31. Clamp; 4. Balance suspension; 5. Rear leaf spring; 6. Guide plate; 7. Rear axle; 8. Thrust rod; 9. Middle axle; 10. Inter-axle drive shaft; 11. Front axle; 12. Front thrust rod; 13. Cylinder; 14. Thrust rod tightening machine; 15. Plate chain line; 151. Trolley; 16. Drag chain line. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present application and its application or use. Example

[0018] A chassis installation line includes an installation station, a positioner 3 and a cache station. The installation stations are arranged in multiple groups. AGV shuttle lines and AGV2 are arranged between the multiple groups of installation stations. AGV2 reciprocates between the multiple groups of installation stations. Figure 1 As shown, each group of installation stations is provided with a supporting tool 1, and the supporting tool 1 is symmetrically arranged on both sides of the AGV shuttle line. The installation station is also provided with a transfer mechanism and a tightening machine. The positioner 3 is used to flip the frame, and the cache station is used for the installation and caching of the components to be transferred after flipping; the transfer mechanism is used to transfer the components to be assembled to the installation station.

[0019] AGV2 lifts the frame chassis from one installation station and drives the frame chassis to move to the next installation station, and then places the installation station on the supporting tooling 1 of the installation station to assemble the frame chassis; the frame is flipped over by the positioner 3 and can be moved to the other side for assembly. The assembled frame is temporarily stored in the cache station, realizing efficient installation of the chassis. Example

[0020] The difference between this embodiment and embodiment 1 is that: four groups of installation stations are provided, and the four groups of installation stations include a first installation station, a second installation station, a third installation station and a fourth installation station arranged in sequence, each station has 6 support fixtures 1, and AGV2 is lurking in the AGV shuttle line below the support fixture 1. The first installation station also includes a hoisting crane, a guide plate assisting arm and an assembly suspension tightening machine. The balance suspension 4 is transported by the hoisting crane, and the guide plate assisting arm grabs and moves the guide plate 6. The first installation station can complete the installation of the balance suspension 4, the rear leaf spring 5 and the guide plate 6, as shown in FIG. Figure 3 The second installation station also includes a hoisting crane and a thrust rod booster arm for hoisting and grabbing movement, thereby completing the installation of the thrust rod 8, the middle bridge 9, the rear axle 7 and the inter-bridge drive shaft 10 at the second installation station, as shown Figure 4 As shown; the third installation station front axle 11, cylinder 13, front thrust rod 12 installation, such as Figure 5 The fourth installation station is provided with a thrust rod tightening machine 14, through the fourth installation station thrust rod 8 and windshield bracket installation, such as Figure 6 shown.

[0021] There are two groups of AGV2 between the four installation stations. After the operation of one station is completed, AGV2 lurks under the tooling of the station, lifts the frame with load through the support tooling 1, and goes to the next station support tooling 1 position, and lands on the support tooling 1. AGV2 returns to the previous station to continue to transport the frame to the station. After the operation is completed, AGV2 returns to the charging place to automatically charge. The working cycle of the four installation stations is basically between 20-25 minutes, and the time difference between adjacent installation stations is within 2 minutes, which greatly improves the work efficiency. AGV2 is equipped with a lifting mechanism, which is used to lift the frame from the support tooling 1 or put the frame on the support tooling 1. The lifting mechanism is provided with a limit block to prevent the frame from falling.

[0022] like Figure 7 As shown, the positioner 3 is provided with a clamp 31 for clamping the frame, and the AGV2 transports the frame to the positioner 3. The positioner 3 clamps the frame through the clamp 31. The positioner 3 converts the frame from the inverted state to the upright state. There is also an AGV2 under the positioner 3. The upright state frame is transported to the cache station by the AGV2. The cache station is equipped with a hoisting crane, which hoists the parts to be assembled at the station to the required position. The cache station can complete the installation of the rear taillight, the connection of the front and rear axle 7 air pipes, the installation of the lifting cylinder and the support, and the installation of the bumper and the towing hook. Finally, the frame with the chassis device completed is cached at the cache station. Example

[0023] This embodiment provides a mining truck assembly line, such as Figure 2As shown, it includes the chassis installation line, the accessory assembly line and the cab installation line in Example 2, the accessory assembly line includes a drag chain line 16 and an accessory assembly station matched with the drag chain line 16, the cab installation line includes a plate chain line 15 and a cab assembly station matched with the plate chain line 15, and the discharge end of the chassis installation line is connected to the drag chain line 16 through a transfer device, such as Figure 8 As shown, the unloading end of the drag chain line 16 is connected to the plate chain line 15. The drag chain line 16 is intermittent. The accessory assembly station is equipped with a hoisting device and a tightening machine. The frame installed on the chassis installation line is transported by the trolley 151 on the drag chain line 16. There are multiple accessory assembly stations on both sides of the drag chain line 16: pipeline installation station, engine gearbox installation station, fuel tank installation station, and battery installation station.

[0024] The frame is first installed with pipelines at the pipeline installation station on the drag chain line 16, and then enters the next station along the drag chain line 16 to install the engine gearbox and the oil cylinder 13, and refuels the accelerator box, the middle rear axle 7, the rear axle 7, etc. through the filling machine; after the battery and spare tire are installed, it enters the plate chain line 15, and the bolts at the assembly are tightened by the tightening machine in the middle; on the plate chain line 15, the cab is dropped, the lifting cylinder, the steering oil pipe and other pipes are connected, and finally the coolant, diesel, refrigerant, etc. are filled to complete the assembly of the entire mining truck.

[0025] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood by specific circumstances.

[0026] The above is only a preferred implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. A chassis installation line, characterized in that: It includes installation stations, positioners and cache stations. There are multiple groups of installation stations. AGV shuttle lines and AGVs are arranged between the multiple groups of installation stations. The AGV reciprocates between the multiple groups of installation stations. Each group of installation stations is provided with supporting tooling, which is symmetrically arranged on both sides of the AGV shuttle line. The installation stations are also provided with transfer mechanisms and tightening machines. The positioner is used to flip the frame, and the cache station is used to install and cache the components to be transferred after flipping; the transfer mechanism is used to transfer the components to be assembled to the installation station.

2. The chassis installation line according to claim 1, characterized in that: The installation stations are arranged in four groups, and two groups of AGVs are arranged between the four groups of installation stations.

3. The chassis installation line according to claim 1, characterized in that: The AGV is provided with a lifting mechanism, and the lifting mechanism is provided with a limit block for preventing the frame from falling. The lifting mechanism is used to lift the frame from the supporting tooling or place the frame on the supporting tooling.

4. The chassis installation line according to claim 1, characterized in that: The four groups of installation stations include a first installation station, a second installation station, a third installation station and a fourth installation station arranged in sequence. The first installation station is used for the installation of the balancing suspension, the rear leaf spring and the guide plate; the second installation station is used for the installation of the thrust rod, the middle and rear axle components and the inter-axle transmission shaft; the third installation station is used for the installation of the front axle components, the cylinder and the front thrust rod; the fourth installation station is used for tightening the thrust rod and installing the windshield bracket.

5. The chassis installation line according to claim 1, characterized in that: The positioner is provided with a clamp for clamping the vehicle frame.

6. The chassis installation line according to claim 1, characterized in that: The installation station is also provided with a tightening machine, which is used for assembling and tightening components.

7. The chassis installation line according to claim 1, characterized in that: The cache station is provided with a hoisting crane, and the cache station is used for installing the rear taillight, connecting the front and rear axle air pipes, installing the lifting cylinder and the support, installing the bumper and the towing hook, and caching the frame.

8. A mining truck assembly line, characterized by: It includes the chassis installation line, accessory assembly line and cab installation line as described in claims 1-7, the accessory assembly line includes a drag chain line and an accessory assembly station coordinated with the drag chain line, the cab installation line includes a plate chain line and a cab assembly station coordinated with the plate chain line, the unloading end of the chassis installation line is connected to the drag chain line through a transfer device, and the unloading end of the drag chain line is connected to the plate chain line.

9. The mining truck assembly line according to claim 8, characterized in that: The accessory assembly station is provided with a hoisting device and a tightening machine.

10. The mining truck assembly line according to claim 9, characterized in that: The drag chain line adopts an intermittent operation mode.

Images