Sand blasting, coating and weighing integrated device for rail transit engineering vehicle body

Abstract

The utility model discloses a sand blasting, coating and weighing integrated device for a rail transit engineering vehicle body. The sand blasting, coating and weighing integrated device comprises a foundation frame and a vehicle body supporting platform, a vehicle body supporting platform is arranged above the foundation frame, a limiting structure is arranged on the vehicle body supporting platform, and the limiting structure comprises a chassis mounting seat positioning hole and a chassis mounting seat positioning shaft and is used for limiting the vehicle body of the engineering vehicle; the vehicle body supporting platform is further detachably connected with a weighing sensor, and the engineering vehicle body is accurately weighed before and after coating; and the height between the chassis of the engineering truck body and the ground is 80-120cm, and sand blasting and coating operation on the front and back surfaces of the engineering truck body can be realized by the height. According to the utility model, the continuity of the whole sand blasting and paint production process of the engineering truck body is ensured, and the production efficiency and the production takt are improved; according to the utility model, the whole weighing of the engineering truck body before and after painting is carried out, the precision is greatly improved, and the weighing precision is controlled within 3%.

Description

Technical Field

[0001] This utility model belongs to the technical field of rail vehicle assembly equipment, and relates to an integrated device for sandblasting, painting and weighing of rail transit engineering vehicle body, which is mainly used for sandblasting, painting and weighing of engineering vehicle body. Background Technology

[0002] Rail transit engineering vehicles play a crucial role in rail transit systems, ensuring their safe and efficient operation. Their main functions include traction of trains, transport vehicles, and unpowered rail vehicles; rescue operations for damaged vehicles; track maintenance and inspection; and freight transport.

[0003] Currently, engineering vehicle bodies are often manufactured by separately sandblasting and painting each component before assembling and welding them together. This production method has the following problems:

[0004] (1) The production process is discontinuous and inefficient; (2) The engineering vehicle body parts are welded after the painting is completed, the painting surface is seriously damaged and polluted, the amount of painting work after the whole vehicle is welded is large, and the appearance of the painting is not uniform, which affects the aesthetics; (3) In the past, the weighing was done before and after each part was painted, and the cumulative error of each part weighing affected the overall weighing accuracy. Summary of the Invention

[0005] In view of the shortcomings and deficiencies of the existing technology, this utility model combines the structure of the engineering vehicle body to design and disclose an integrated device for sandblasting, painting and weighing of rail transit engineering vehicle body, which meets the requirements of sandblasting, painting and weighing of rail transit engineering vehicle body, improves production efficiency, reduces painting rework, and improves the overall weighing accuracy of engineering vehicle body.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] An integrated device for sandblasting, painting, and weighing of rail transit engineering vehicle bodies includes a basic frame and a vehicle body support platform. The vehicle body support platform is located at each of the four corners of the basic frame. The support platform is equipped with a limiting structure, which includes positioning holes for the underframe mounting seat and positioning shafts for the underframe mounting seat. These positioning holes and shafts work together to limit the movement of the engineering vehicle body. A weighing sensor can also be detachably connected to the support platform for accurate weighing of the engineering vehicle body before and after painting. The height between the underframe of the engineering vehicle body and the ground is 80-120cm, allowing for sandblasting and painting operations on both sides of the vehicle body.

[0008] Furthermore, the positioning shaft of the chassis mounting seat protrudes from the vehicle body support platform and is inserted into the chassis mounting seat for fixation; the positioning hole of the chassis mounting seat is a threaded hole, and a bolt is inserted into the positioning hole of the chassis mounting seat and connected to the chassis mounting seat.

[0009] Furthermore, the positioning shaft of the underframe mounting seat protrudes from the center of the vehicle body support platform; the positioning hole of the underframe mounting seat is located on one side of the vehicle body support platform.

[0010] Furthermore, the vehicle body support platform is provided with sensor positioning holes.

[0011] Furthermore, the sensor positioning hole is a threaded hole, and a bolt is inserted into the sensor positioning hole and connected to the bottom of the weighing sensor.

[0012] Furthermore, the weighing sensor is a pressure-type weighing sensor.

[0013] Furthermore, the bottom of the basic frame is equipped with track rollers that fit with the painting line ground rails, with each roller having a maximum load capacity of 5T.

[0014] Furthermore, the basic frame is designed as a quadrilateral frame structure, and a reinforcing longitudinal beam is provided in the middle of the quadrilateral frame structure. The maximum load capacity of the basic frame is 10T.

[0015] Furthermore, vertical beams are added to both ends of the basic frame, and the vehicle body support platform is installed at both ends of the vertical beams.

[0016] The technical problems that this utility model can solve are: (1) solving the problem of discontinuous sandblasting and painting process of various parts of the vehicle body and improving production efficiency; (2) solving the problem of paint rework caused by painting and then welding of various parts of the vehicle body separately; (3) solving the problem of inconsistent paint appearance and unsightly coating caused by painting and then welding of various parts of the vehicle body separately and then touching up the paint; (4) improving the overall weighing accuracy of the engineering vehicle body before and after painting.

[0017] The advantages of this utility model are as follows:

[0018] (1) By utilizing the integrated device of this utility model, the continuity of the overall sandblasting and painting process of the engineering vehicle body can be ensured, thereby improving production efficiency and production cycle time.

[0019] (2) The top of the integrated device of this utility model is 80-120cm above the ground, which provides enough space for sandblasting and painting of the bottom of the engineering vehicle body, making it convenient for workers to operate.

[0020] (3) Compared with the previous problems of rework and unsightly touch-up painting caused by welding after painting of parts, the integrated device of this utility model can complete the painting of the vehicle body in one go, with uniform and beautiful paint appearance, and reduce the painting rework work by more than 95%.

[0021] (4) Using the integrated device of this utility model, the overall weighing of the engineering vehicle body before and after painting is significantly improved compared with the previous method of weighing each component and then adding the weights. The weighing accuracy is controlled within 3%. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the engineering vehicle body to be placed on the integrated device of this utility model;

[0023] Figure 2 This is a perspective view of the integrated device of this utility model (without a weighing sensor).

[0024] Figure 3 A flowchart illustrating the integrated device of this utility model;

[0025] Figure 4 This is a schematic diagram of the integrated device of this utility model (with a weighing sensor).

[0026] Figure 5 This is a schematic diagram of an engineering vehicle body (with a weighing sensor) placed on the integrated device of this utility model.

[0027] Figure 6 This is a partial schematic diagram of the engineering vehicle body (showing the chassis mounting base).

[0028] Figure 7 This is a top view of the integrated device of this utility model (without a weighing sensor).

[0029] Figure 8 This utility model's integrated device features a diagram of an engineering vehicle body (without a weighing sensor).

[0030] Among them, 1 is the vehicle body, 2 is the tooling frame foundation, 3 is the track roller, 4 is the support platform, 5 is the limiting structure, 51 is the positioning hole of the base frame mounting seat, 52 is the positioning shaft of the base frame mounting seat, 53 is the sensor positioning hole, 6 is the weighing sensor, and 7 is the vehicle body base frame mounting seat. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0032] like Figure 1As shown, the integrated device for sandblasting, painting and weighing of rail transit engineering vehicle body in this embodiment includes a tooling frame base 2 and a support platform 4, a limiting structure 5 and a weighing sensor 6 set on the tooling frame base 2; the integrated device in this embodiment can realize sandblasting and painting of the front and back of the engineering vehicle body 1 and accurate weighing of the entire vehicle body before and after painting.

[0033] The tooling frame foundation 2 is designed as a quadrilateral frame structure, ensuring structural stability. A vertical beam is added to the middle of the tooling frame foundation 2, forming a closed quadrilateral structure between the beam and both ends of the quadrilateral frame. This creates a large cavity space within the tooling frame foundation 2, facilitating personnel work on the vehicle chassis. This integrated device considers the overall structural stability and ensures its practicality.

[0034] Among them, the bottom of the tooling frame foundation 2 is equipped with track rollers 3, which can move freely on the ground track in the paint shop.

[0035] Among them, support platforms 4 are provided above the four corners of the tooling frame foundation 2 to support the four legs of the engineering vehicle body 1 chassis; and the height between the engineering vehicle body 1 chassis and the ground is 80-120cm (e.g., Figure 8 As shown, in this embodiment, the height between the chassis of the engineering vehicle body 1 and the ground is 100cm, which facilitates the operator to perform sandblasting and painting operations on the reverse side of the chassis.

[0036] Among them, a limiting structure 5 is set on the support platform 4 to ensure that the engineering vehicle body 1 cannot be moved after it is placed. Specifically, such as Figure 4 and Figure 7 As shown, the limiting structure 5 includes a base mounting seat positioning hole 51 and a base mounting seat positioning shaft 52. The base mounting seat positioning shaft 52 protrudes from the center of the support platform 4 and is inserted into the vehicle body base mounting seat 7 for fixation. The base mounting seat positioning hole 51 is located on one side of the support platform 4 and is connected and fixed to the vehicle body base mounting seat 7 with bolts.

[0037] Each support platform 4 can be equipped with a 10T pressure-type weighing sensor 6 to weigh the entire body 1 of the engineering vehicle.

[0038] Specifically, the support platform 4 is also provided with a sensor positioning hole 53, which is a threaded hole and is connected and fixed to the weighing sensor 6 by bolts.

[0039] The process of sandblasting, painting, and weighing using the integrated sandblasting, painting, and weighing device for rail transit engineering vehicle body in this embodiment is as follows: Figure 3 As shown.

[0040] (1) After the welding and inspection of the first group of the engineering vehicle body is completed, the integrated device is sent to the conveyor rail of the paint shop by the workshop crane; after the hoisting is completed, the integrated device in this embodiment first travels from the sandblasting room to the drying room without load to verify the fit between the integrated device and the rail.

[0041] After verification, the weighing sensor 6 is placed and installed on the support platform 4 (the support platform 4 has sensor positioning holes 53, which are connected and fixed to the weighing sensor 6 by bolts), and the weighing sensor 6 is calibrated.

[0042] (2) Clean up all debris on the vehicle body 1. After cleaning, use the workshop crane to lift the vehicle body 1 onto the integrated device and ensure that the four legs of the vehicle body frame are placed on the weighing sensor 6 for weighing before painting.

[0043] (3) Weigh the body 1 of the engineering vehicle and record the weight of the body before painting in the inspection report, and verify and re-inspect the weighing results.

[0044] After weighing, the engineering vehicle body 1 is lifted using a workshop crane, and the weighing sensor 6 is removed. The engineering vehicle body 1 is then placed onto the integrated device, and the vehicle body is positioned using the support platform shaft (base frame mounting seat positioning shaft 52). After positioning, the vehicle body is connected and fixed to the vehicle body base frame mounting seat 7 using bolts through the support platform mounting holes (base frame mounting seat positioning holes 51) to ensure that the vehicle body will not deviate due to the inertia of the integrated device's movement.

[0045] (4) The integrated device is pulled by a tractor through the paint spraying production line track and into the sandblasting room. The entire body of the engineering vehicle 1 is then sandblasted. In this embodiment, the height between the ground and the vehicle chassis is 100cm, facilitating sandblasting operations on the bottom of the chassis (e.g., ...). Figure 8 (As shown), after sandblasting, clean up any remaining abrasive and dust;

[0046] (5) The integrated device is lifted by a tractor and enters the painting booth via the track of the spraying production line. In this embodiment, the height between the ground and the chassis is 80-120cm, which facilitates the painting personnel to perform painting operations on the bottom of the chassis (such as...). Figure 8 (As shown). The engineering vehicle body 1 is sequentially coated with primer, putty, sealant, intermediate coat, topcoat, color separation, damping paste, and markings.

[0047] (6) The workshop crane lifts the engineering vehicle body 1, places the weighing sensor 6 again, weighs the engineering vehicle body 1 after painting, records the weight of the painted vehicle body in the relevant test report, and removes the weighing sensor 6 after verifying and re-testing the weighing results.

[0048] (7) Use a tractor to pull the integrated device across the paint production line track and into the inspection and release area. Inspect and release the paint finish of the engineering vehicle body 1;

[0049] (8) The engineering vehicle body 1 is lifted off the integrated device by a workshop crane or truck crane and placed in the storage area.

[0050] The above description is merely a preferred embodiment of the present utility model and does not constitute a limitation on the scope of protection of the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the scope of protection of the claims of the present utility model.

Claims

1. An integrated device for sandblasting, painting, and weighing of rail transit engineering vehicle bodies, characterized in that, The integrated device includes a basic frame and a vehicle body support platform. The vehicle body support platform is located at the four corners of the basic frame, and a limiting structure is provided on the vehicle body support platform. The limiting structure includes a base mounting seat positioning hole and a base mounting seat positioning shaft, which together limit the movement of the engineering vehicle body. A weighing sensor can also be detachably connected to the vehicle body support platform for accurate weighing of the engineering vehicle body before and after painting. The height between the base frame of the engineering vehicle body and the ground is 80-120cm, which allows for sandblasting and painting operations on both sides of the engineering vehicle body.

2. The integrated device for sandblasting, painting, and weighing of rail transit engineering vehicle body as described in claim 1, characterized in that, The positioning shaft of the chassis mounting seat protrudes from the vehicle body support platform and is inserted into the chassis mounting seat for fixation; the positioning hole of the chassis mounting seat is a threaded hole, and a bolt is inserted into the positioning hole of the chassis mounting seat and connected to the chassis mounting seat.

3. The integrated device for sandblasting, painting, and weighing of rail transit engineering vehicle body as described in claim 2, characterized in that, The positioning shaft of the underframe mounting seat protrudes from the center of the vehicle body support platform; the positioning hole of the underframe mounting seat is located on one side of the vehicle body support platform.

4. The integrated device for sandblasting, painting, and weighing of rail transit engineering vehicle body as described in any one of claims 1-3, characterized in that, The vehicle body support platform is equipped with sensor positioning holes.

5. The integrated device for sandblasting, painting, and weighing of rail transit engineering vehicle body as described in claim 4, characterized in that, The sensor positioning hole is a threaded hole, and a bolt is inserted into the sensor positioning hole and connected to the bottom of the weighing sensor.

6. The integrated device for sandblasting, painting, and weighing of rail transit engineering vehicle body as described in any one of claims 1-3, characterized in that, The weighing sensor is a pressure type weighing sensor.

7. The integrated device for sandblasting, painting, and weighing of rail transit engineering vehicle body as described in any one of claims 1-3, characterized in that, The bottom of the basic frame is equipped with track rollers that fit with the ground rails of the painting line, with each roller having a maximum load capacity of 5T.

8. The integrated device for sandblasting, painting, and weighing of rail transit engineering vehicle body as described in any one of claims 1-3, characterized in that, The basic frame is a quadrilateral frame structure with a reinforcing longitudinal beam in the middle. The maximum load capacity of the basic frame is 10T.

9. The integrated device for sandblasting, painting, and weighing of rail transit engineering vehicle body as described in any one of claims 1-3, characterized in that, Vertical beams are added to both ends of the basic frame, and vehicle body support platforms are installed at both ends of the vertical beams.

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