A paint spraying jig for a turbocharger housing
By using a motor-driven forward and reverse screw and a rotary cylinder design, the turbocharger housing is automatically positioned and painted from multiple angles. This solves the problems of cumbersome manual clamping operations and difficulty in controlling clamping force, thus improving painting accuracy and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU FENGYUE MASCH CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-07-21
AI Technical Summary
In existing turbocharger housing painting fixtures, manual clamping is cumbersome to operate and the clamping force is difficult to control, which can lead to housing deformation or shaking, affecting painting accuracy and production efficiency.
The design employs a motor-driven forward and reverse screw and a rotary cylinder to achieve automated positioning and multi-angle painting of the turbocharger housing. Through the cooperation of the limiting components and the paint gun, the clamping force is ensured to be uniform and precisely controllable, eliminating painting dead angles.
It improves painting precision and production efficiency, reduces manual intervention, enhances product appearance quality and material utilization, and lowers equipment maintenance costs.
Smart Images

Figure CN224525050U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of turbocharger housings, and more particularly to a painting fixture for turbocharger housings. Background Technology
[0002] The turbocharger housing is a key component of the turbocharger. It plays an important role in supporting and protecting the internal critical components and guiding airflow in the entire turbocharger system. Its performance and quality have a crucial impact on the overall performance of the turbocharger and even the engine, and it accounts for 20%-35% of the cost of the turbocharger.
[0003] In the manufacturing process of turbochargers, painting the housing is a key step. This not only improves the appearance quality of the housing, but also enhances its corrosion resistance, high temperature resistance and other properties, thereby extending the service life of the turbocharger.
[0004] When positioning turbocharger housings, most painting fixtures use manual clamps or simple fixing structures. Manual clamps are not only cumbersome to operate, consuming a lot of manpower and time, but also difficult to control the clamping force. Excessive clamping force can easily cause housing deformation, while insufficient clamping force can cause the housing to shake during the painting process, affecting the painting accuracy and production efficiency. Therefore, a painting fixture for turbocharger housings is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a painting fixture for turbocharger housings, which aims to improve the existing manual clamps, which are not only cumbersome to operate and consume a lot of manpower and time, but also difficult to control the clamping force. Excessive clamping force can easily cause housing deformation, or insufficient clamping force can cause the housing to shake during the painting process, affecting the painting accuracy and production efficiency.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A painting fixture for a turbocharger housing includes a paint sprayer body, a mounting bracket fixedly mounted on the top of the paint sprayer body, movable brackets fixedly mounted on both sides of the front of the mounting bracket, a paint spray gun slidably mounted inside the movable bracket, a placement plate fixedly mounted on the top of the paint sprayer body, and a limiting component for limiting the turbocharger housing on the top of the placement plate.
[0008] As a further description of the above technical solution:
[0009] The limiting component includes a placement box, on which sliders are slidably mounted on the front and rear sides of the top of the placement box. The bottom of the sliders extends through to the bottom of the placement box. A motor is fixedly mounted on the top of the inner wall of the placement box. A forward and reverse threaded rod is fixedly mounted on the output end of the motor. The front end of the forward and reverse threaded rod extends through to the front side of the slider and is threadedly mounted with the slider.
[0010] As a further description of the above technical solution:
[0011] A slide plate is fixedly installed on the inner side of the slider, and a limit pin is fixedly installed on the inner side of the slide plate.
[0012] As a further description of the above technical solution:
[0013] A connecting plate is fixedly installed at the bottom of the placement box, and a rotary cylinder is provided at the top of the placement plate. The rotating shaft of the rotary cylinder is fixedly installed at the bottom of the connecting plate.
[0014] As a further description of the above technical solution:
[0015] An L-shaped plate is fixedly installed at the bottom of the rotary cylinder, and an electric push rod is fixedly installed at the top of the placement plate. The telescopic end of the electric push rod is fixedly installed on the back of the L-shaped plate.
[0016] As a further description of the above technical solution:
[0017] A fixing block is rotatably mounted on the front end of the positive and negative screws, and the top of the fixing block is fixedly mounted on the top of the inner wall of the placement box;
[0018] As a further description of the above technical solution:
[0019] The placement box is equipped with a limiting rod inside. The front and rear ends of the limiting rod are fixedly installed to the inner wall of the placement box. The limiting rod and the slider are slidably installed.
[0020] This utility model has the following beneficial effects:
[0021] 1. This utility model adopts a motor-driven forward and reverse screw design, which enables the slider to move synchronously in opposite directions, thereby quickly clamping or releasing the turbocharger housing. Compared with traditional manual clamps, the clamping force is uniform and can be precisely controlled, avoiding housing deformation caused by uneven clamping force. At the same time, it shortens the clamping time and improves the production cycle.
[0022] 2. The application of the rotary cylinder in this utility model enables the placement box to rotate around the axis, realizing multi-angle painting of the turbocharger housing. By controlling the rotation angle through the program, the hidden parts such as the side and inner cavity of the housing can be fully painted, eliminating painting dead angles, reducing manual touch-up processes, improving paint coverage and uniformity, and enhancing the product appearance quality. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the main structure of the paint spraying machine body of this utility model;
[0024] Figure 2 This is a cross-sectional view of the placement box of this utility model;
[0025] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;
[0026] Figure 4 This utility model Figure 1 Enlarged structural diagram at point B in the middle.
[0027] Legend:
[0028] 1. Spray painting machine body; 2. Mounting bracket; 3. Movable frame; 4. Spray paint gun; 5. Placement plate; 6. Limiting component; 61. Placement box; 62. Slider; 63. Motor; 64. Positive and negative screws; 65. Slide plate; 66. Limiting pin; 67. Connecting plate; 68. Rotary cylinder; 69. L-shaped plate; 610. Electric push rod; 7. Fixing block; 8. Limiting rod. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] Reference Figure 1-4 This utility model provides an embodiment of a spray painting fixture for a turbocharger housing, comprising a spray painting machine body 1, a mounting frame 2 fixedly mounted on the top of the spray painting machine body 1, movable frames 3 fixedly mounted on both sides of the front of the mounting frame 2, a spray gun 4 slidably mounted inside the movable frames 3, a placement plate 5 fixedly mounted on the top of the spray painting machine body 1, and a limiting component 6 for limiting the turbocharger housing on the top of the placement plate 5. By setting the movable frames 3, the sliding adjustment of the spray gun 4 is realized. With the precise positioning of the turbocharger housing by the limiting component 6, a complete automated spray painting system is formed. Compared with traditional manual hand-held spray painting, this structure significantly improves the stability and positional accuracy of the spray painting process. The position of the spray gun can be adjusted according to the shape of the housing to meet the spray painting needs of different specifications of products, reduce manual intervention, and improve production efficiency.
[0031] Reference Figure 1-4The limiting component 6 includes a placement box 61. Slider 62 is slidably mounted on both the front and rear sides of the top of the placement box 61. The bottom of the slider 62 extends through to the bottom of the placement box 61. A motor 63 is fixedly mounted on the top of the inner wall of the placement box 61. A forward and reverse threaded screw 64 is fixedly mounted on the output end of the motor 63. The front end of the forward and reverse threaded screw 64 extends through to the front of the slider 62 and is threadedly installed with the slider 62. The design of using the motor 63 to drive the forward and reverse threaded screw 64 enables the slider 62 to move synchronously in opposite directions, thereby allowing for rapid clamping or loosening of the turbocharger housing. Compared to traditional manual clamps, this clamping force is uniform and precisely controllable, avoiding housing deformation caused by uneven clamping force. It also shortens clamping time and improves production cycle time. A slide plate 65 is fixedly installed inside the slider 62, and a limit pin 66 is fixedly installed inside the slide plate 65. The limit pin 66 further optimizes the fixing method of the turbocharger housing. The limit pin 66 can be inserted into the mounting hole or groove of the housing to achieve point contact positioning. Compared to surface contact clamps, it can better adapt to the complex shape and structure of the housing and prevent damage during the painting process. The sliding or wobbling of the housing ensures consistent paint quality, making it particularly suitable for irregularly shaped turbocharger housings without hindering the painting process. A fixing block 7 is rotatably mounted on the front end of the forward / reverse threaded screw 64. The top of the fixing block 7 is fixedly installed on the top of the inner wall of the placement box 61. The supporting effect of the fixing block 7 on the forward / reverse threaded screw 64 effectively reduces radial runout and deformation, ensuring the synchronization and precision of the slider 62's movement, extending the screw's service life, reducing equipment maintenance costs, and guaranteeing long-term... To ensure operational reliability, a limiting rod 8 is installed inside the placement box 61. The front and rear ends of the limiting rod 8 are fixedly installed to the inner wall of the placement box 61. The limiting rod 8 and the slider 62 are slidably installed. The sliding cooperation between the limiting rod 8 and the slider 62 guides and constrains the movement trajectory of the slider 62. This structure prevents the slider 62 from deviating or getting stuck during movement, ensuring the smooth and stable operation of the limiting component 6. At the same time, it disperses the clamping force, reduces wear on the inner wall of the placement box 61, and improves the durability and precision retention of the entire tooling.
[0032] Reference Figure 1-4A connecting plate 67 is fixedly installed at the bottom of the placement box 61, and a rotary cylinder 68 is installed at the top of the placement plate 61. The rotating shaft of the rotary cylinder 68 is fixedly installed at the bottom of the connecting plate 67. The application of the rotary cylinder 68 allows the placement box 61 to rotate around the shaft, realizing multi-angle painting of the turbocharger housing. By controlling the rotation angle through a program, the sides, inner cavities, and other hidden parts of the housing can be fully painted, eliminating painting dead angles, reducing manual touch-up processes, improving paint coverage and uniformity, and enhancing the product's appearance quality. An L-shaped plate 69 is fixedly installed at the bottom of the placement box 61, and an electric push rod 610 is fixedly installed at the top of the placement plate 5. The telescopic end of the electric push rod 610 is fixedly installed on the back of the L-shaped plate 69. The combination structure of the electric push rod 610 and the L-shaped plate 69 realizes the linear displacement adjustment of the placement box 61. This design can dynamically adjust the distance between the housing and the paint gun 4 according to the requirements of the painting process, optimize the spraying distance and angle, and is especially suitable for the differentiated painting parameter control of different diameter parts of the turbocharger housing, further improving the painting effect and material utilization.
[0033] Working principle: When the turbocharger housing needs to be painted, motor 63 can be started. The output end of motor 63 drives the positive and negative threaded screw 64 to rotate. The rotation of the positive and negative threaded screw 64 moves the slider 62 inward. The inward movement of slider 62 drives the slide plate 65 and the limit pin 66 inward. When the inner side of the limit pin 66 contacts the turbocharger housing, the electric push rod 610 can be started. The extension end of the electric push rod 610 drives the L-shaped plate 69, the rotary cylinder 68, the connecting plate 67 and the placement box 61 to move inward. The movement of the placement box 61 can move the turbocharger housing. When the turbocharger housing moves to the bottom of the paint gun 4, the paint gun 4 can be started to paint the turbocharger housing. At this time, the rotary cylinder 68 can be started. The rotating shaft of the rotary cylinder 68 will drive the placement plate 5, the placement box 61 and the turbocharger housing to rotate, so that the turbocharger housing can be painted evenly in all directions. After the turbocharger housing is painted, it can be allowed to cool naturally before being taken out.
[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A painting fixture for a turbocharger housing, comprising a painting machine body (1), characterized in that: A mounting bracket (2) is fixedly installed on the top of the paint sprayer body (1). Movable brackets (3) are fixedly installed on both sides of the front of the mounting bracket (2). A paint spray gun (4) is slidably installed inside the movable bracket (3). A placement plate (5) is fixedly installed on the top of the paint sprayer body (1). A limiting component (6) for limiting the turbocharger housing is provided on the top of the placement plate (5). The limiting component (6) includes a placement box (61). The front and rear sides of the top of the placement box (61) are slidably installed. A slider (62) is mounted on the slide. The bottom of the slider (62) extends through to the bottom of the placement box (61). A motor (63) is fixedly mounted on the top of the inner wall of the placement box (61). A forward and reverse threaded screw (64) is fixedly mounted on the output end of the motor (63). The front end of the forward and reverse threaded screw (64) extends through to the front side of the slider (62) and is threadedly mounted with the slider (62). A slide plate (65) is fixedly mounted on the inner side of the slider (62). A limit pin (66) is fixedly mounted on the inner side of the slide plate (65).
2. The painting fixture for a turbocharger housing according to claim 1, characterized in that: A connecting plate (67) is fixedly installed at the bottom of the placement box (61), and a rotary cylinder (68) is provided at the top of the placement plate (5). The rotating shaft of the rotary cylinder (68) and the bottom of the connecting plate (67) are fixedly installed.
3. The painting fixture for a turbocharger housing according to claim 2, characterized in that: An L-shaped plate (69) is fixedly installed at the bottom of the rotary cylinder (68), and an electric push rod (610) is fixedly installed at the top of the placement plate (5). The telescopic end of the electric push rod (610) is fixedly installed on the back of the L-shaped plate (69).
4. The painting fixture for a turbocharger housing according to claim 1, characterized in that: A fixing block (7) is rotatably mounted on the front end of the positive and negative screw (64), and the top of the fixing block (7) is fixedly mounted on the top of the inner wall of the placement box (61).
5. The painting fixture for a turbocharger housing according to claim 1, characterized in that: The placement box (61) is provided with a limiting rod (8) inside. The front end and the rear end of the limiting rod (8) are fixedly installed with the inner wall of the placement box (61). The limiting rod (8) and the slider (62) are slidably installed.