Tool jig for detecting automobile engine cylinder gasket
By designing a tooling fixture that includes a worktable, centering components, and limiting components, the limitations of traditional testing devices for single-specification gaskets are solved, enabling flexible centering and stable support for gaskets of different specifications, thus improving the adaptability and stability of the testing.
Patent Information
- Application Number
- CN202423068717.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-12-12
AI Technical Summary
Traditional engine cylinder head gasket testing devices can only limit and clamp gaskets of a single specification, which limits their application.
A tooling fixture including a worktable, a centering component, and a limiting component was designed. Through the combination of a sliding frame, a motor, a forward and reverse threaded screw, a slider, a bracket, a top plate, and a protective frame, it can achieve flexible centering and stable support for cylinder gaskets of different specifications. The limiting component and the height adjustment component can adapt to the testing needs of gaskets of different specifications.
It achieves flexible alignment and stable support for cylinder head gaskets of different specifications, can adapt to the testing needs of various gasket specifications, and improves the flexibility and stability of testing.
Smart Images

Figure CN223551309U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of engine cylinder head gasket testing technology, specifically a tooling fixture for testing automotive engine cylinder head gaskets. Background Technology
[0002] Cylinder head gaskets are primarily used to seal the mating surfaces between the cylinder block and cylinder head. During engine operation, high-temperature, high-pressure gases are generated inside the cylinder. These gases need to be strictly sealed within the cylinder to ensure normal engine power output. Cylinder head gaskets prevent these high-temperature, high-pressure gases from leaking into the engine's cooling or lubrication systems.
[0003] Engine gaskets require testing equipment during the inspection process, but traditional testing clamping devices can only limit the clamping of gaskets of a single specification, which has high limitations in use. Utility Model Content
[0004] (a) Technical problems to be solved
[0005] To address the shortcomings of existing technologies, this utility model provides a tooling fixture for testing automotive engine cylinder head gaskets.
[0006] (II) Technical Solution
[0007] To achieve the above objectives, this utility model provides the following technical solution: a tooling fixture for testing automotive engine cylinder head gaskets, comprising a worktable, an alignment component, and a limiting component. Support legs are provided at the four corners of the worktable. The alignment component includes a sliding frame, a motor, a first positive and negative threaded screw, a slider, a bracket, a top plate, and a protective frame. The sliding frame is disposed on the worktable and has a groove with an upper opening. The groove contains the first positive and negative threaded screw and two sets of symmetrically arranged sliders. The sliders also have an upper-opening U-shaped... The bracket has a top plate at both free ends. The slider is threadedly connected to the first positive and negative threaded screw. The top plate also has a C-shaped protective frame. The limiting component includes a limiting plate, a second positive and negative threaded screw, and a handle. The top plate also has a sliding hole. The second positive and negative threaded screw is rotatably disposed in the sliding hole. The limiting plate is arranged in two symmetrical sets. The lower part of the limiting plate extends into the sliding hole and is threadedly connected to the second positive and negative threaded screw. The second positive and negative threaded screw passes through the top plate and is connected to the handle.
[0008] To facilitate the adjustment of the material height, this utility model is improved by providing a height adjustment component on the top plate. The height adjustment component includes a lifter and a lifting plate. The lifter is located between the two free ends of the support and passes through the top plate and is connected to the lifting plate.
[0009] To ensure the stability of the lifting plate's movement, this utility model is improved by providing a guide rod that penetrates the top plate below the lifting plate.
[0010] To facilitate stable clamping of materials in conjunction with the lifting plate, this utility model is improved by providing an auxiliary plate on the upper part of the limiting plate near the center of the top plate.
[0011] Preferably, the motor is a servo motor.
[0012] Preferably, the lifting device is a cylinder.
[0013] To facilitate stable driving of the handle, this utility model is improved by providing friction texture on the handle.
[0014] (III) Beneficial Effects
[0015] Compared with the prior art, this utility model provides a tooling fixture for inspecting automotive engine cylinder head gaskets, which has the following beneficial effects:
[0016] This tooling fixture for testing automotive engine cylinder head gaskets includes a centering component (composed of a sliding frame, motor, first positive and negative threaded screws, slider, bracket, top plate, and protective frame) that enables flexible centering and stable support for cylinder head gaskets of different specifications. It can limit the material on both sides, and the limiting component can conveniently limit the front and rear ends of the material. In addition, the height adjustment component can be used to adjust the height of the material to facilitate the testing of gaskets of different specifications. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0018] Figure 2 This is a bottom view of the structure of this utility model;
[0019] Figure 3 This is a partial schematic diagram of the structure of this utility model;
[0020] Figure 4 The structure of this utility model Figure 3 A magnified view of a portion of the image.
[0021] In the diagram: 1. Workbench; 2. Support leg; 3. Slide frame; 4. Motor; 5. First forward and reverse threaded screw; 6. Slider; 7. Bracket; 8. Top plate; 9. Protective frame; 10. Limiting plate; 11. Second forward and reverse threaded screw; 12. Handle; 13. Lifter; 14. Lifting plate; 15. Guide rod; 16. Auxiliary plate; 17. Friction texture. Detailed Implementation
[0022] 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.
[0023] Please see Figure 1-4 A tooling fixture for testing cylinder head gaskets of automobile engines includes a worktable 1, a centering assembly, and a limiting assembly. Support legs 2 are provided at the four corners of the worktable 1. The centering assembly includes a sliding frame 3, a motor 4, a first threaded screw 5, a slider 6, a bracket 7, a top plate 8, and a protective frame 9. The sliding frame 3 is mounted on the worktable 1 and has a groove with an upper opening. The groove contains the first threaded screw 5 and two sets of symmetrically arranged sliders 6. A bracket 7 with an upper opening (U-shape) is also provided on the slider 6. Two free ends of the bracket 7 are provided with… The top plate 8 is provided, the slider 6 is threadedly connected to the first positive and negative threaded screw 5, and the top plate 8 is also provided with a C-shaped protective frame 9. The limiting component includes a limiting plate 10, a second positive and negative threaded screw 11 and a handle 12. The top plate 8 is also provided with a sliding hole, in which the second positive and negative threaded screw 11 is rotatably disposed. The limiting plate 10 is arranged in two symmetrical sets. The lower part of the limiting plate 10 extends into the sliding hole and is threadedly connected to the second positive and negative threaded screw 11. The second positive and negative threaded screw 11 passes through the top plate 8 and is connected to the handle 12.
[0024] The support leg 2 provides stable support for the workbench 1, and the workbench 1 provides stable support for the slide frame 3. The motor 4 drives the first positive and negative thread screw 5 to rotate, and the two sets of sliders 6 move towards each other. The bracket 7 on the slider 6 provides stable support for the top plate 8. The protective frame 9 on the top plate 8 moves towards each other until the two sets of protective frames 9 are in contact with the material. The handle 12 drives the second positive and negative thread screw 11 to rotate, and the two sets of limiting plates 10 move towards each other to limit the front and rear ends of the left and right sides of the material, so as to center and fix the gaskets of different specifications, and provide stable support for subsequent gasket testing.
[0025] In actual use, the height of the shim also needs to be adjusted. Therefore, a height adjustment assembly is provided on the top plate 8. This assembly includes a lifter 13 and a lifting plate 14. The lifter 13 is located between the two free ends of the bracket 7, passing through the top plate 8 and connecting to the lifting plate 14. The lifter 13 raises the lifting plate 14 to adjust the height of the shim. It should be noted that the two sets of lifters 13 can be servo cylinders, which have built-in motors, encoders, and other components, enabling precise control of the position, speed, and acceleration of the cylinder piston rod. The controller sends the same motion commands to the two sets of servo cylinders, causing them to feed synchronously and precisely according to the set parameters, providing stable support for the shim. A guide rod 15 passing through the top plate 8 is also provided below the lifting plate 14 to ensure the stability of the lifting plate 14's movement. An auxiliary plate 16 is also provided on the upper part of the limiting plate 10 near the center of the top plate 8 to clamp the shim vertically.
[0026] In actual use, the handle 12 is also provided with friction texture 17 to stabilize the drive handle 12.
[0027] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.
[0028] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.
Claims
1. A tooling fixture for inspecting cylinder head gaskets of automobile engines, comprising a worktable (1), a centering assembly, and a limiting assembly, characterized in that: The workbench (1) is provided with four support legs (2) at its four corners. The centering assembly includes a sliding frame (3), a motor (4), a first positive and negative thread screw (5), a slider (6), a bracket (7), a top plate (8), and a protective frame (9). The sliding frame (3) is set on the workbench (1). The sliding frame (3) is provided with a sliding groove with an upper opening. The first positive and negative thread screw (5) and two sets of symmetrically arranged sliders (6) are provided in the sliding groove. The sliders (6) are also provided with a bracket (7) with an upper opening in the shape of an inverted triangle. The top plate (8) is provided on the two free ends above the bracket (7). The sliders (6) and the motor (4) are aligned. The first positive and negative threaded screw (5) is threadedly connected. The top plate (8) is also provided with a C-shaped protective frame (9). The limiting component includes a limiting plate (10), a second positive and negative threaded screw (11) and a handle (12). The top plate (8) is also provided with a sliding hole. The second positive and negative threaded screw (11) is rotatably arranged in the sliding hole. The limiting plate (10) is arranged in two symmetrical sets. The lower part of the limiting plate (10) extends into the sliding hole and is threadedly connected to the second positive and negative threaded screw (11). The second positive and negative threaded screw (11) passes through the top plate (8) and is connected to the handle (12).
2. The tooling fixture for testing automotive engine cylinder head gaskets according to claim 1, characterized in that: The top plate (8) is also provided with a height adjustment component, which includes a lifter (13) and a lifting plate (14). The lifter (13) is located between the two free ends of the bracket (7). The lifter (13) passes through the top plate (8) and is connected to the lifting plate (14).
3. The tooling fixture for testing automobile engine cylinder head gaskets according to claim 2, characterized in that: A guide rod (15) that passes through the top plate (8) is also provided below the lifting plate (14).
4. The tooling fixture for testing automobile engine cylinder head gaskets according to claim 3, characterized in that: An auxiliary plate (16) is also provided on the upper part of the limiting plate (10) near the center of the top plate (8).
5. The tooling fixture for testing automobile engine cylinder head gaskets according to claim 4, characterized in that: The motor (4) is a servo motor.
6. The tooling fixture for testing automobile engine cylinder head gaskets according to claim 5, characterized in that: The lifting device (13) uses a cylinder.
7. The tooling fixture for testing automobile engine cylinder head gaskets according to claim 6, characterized in that: The handle (12) is also provided with friction texture (17).