Fixing tool for cylinder cover machining
By designing a cylinder head fixing tooling that includes components such as a processing table, a slide, a screw, and a fastening nut, the problem of insufficient adaptability of the existing tooling is solved, efficient, stable, and safe clamping of the cylinder head processing is achieved, and processing accuracy and efficiency are improved.
Patent Information
- Application Number
- CN202422609529.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-29
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-10-29
AI Technical Summary
Existing cylinder head fixing tooling has limitations in adapting to cylinder heads of different specifications. It is difficult to adapt to slight changes in cylinder head size, resulting in frequent tooling replacement or poor processing quality. Uneven clamping force affects processing quality and efficiency.
A fixed tooling was designed, which includes a processing table, a slide, a screw, a fastening nut, a bracket, a side arm, a rotating shaft assembly, a clamping block and other components. Through the flexible adjustment of the height adjustment rod and the clamping block, it can adapt to cylinder heads of different specifications and ensure stable clamping and processing accuracy.
It improves the precision and efficiency of cylinder head processing, ensures the stability and safety of the cylinder head during processing, reduces the difficulty of operation, and enhances the adaptability and flexibility of tooling.
Smart Images

Figure CN223354044U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of cylinder head fixing tooling, in particular to a fixing tooling for cylinder head processing. Background Art
[0002] In the field of machining, fixtures play a key role in ensuring that workpieces maintain a stable position and orientation during machining. For cylinder heads, a key component in automotive engine manufacturing, machining accuracy and quality directly impact the overall performance and life of the engine. Therefore, fixtures used in cylinder head machining are particularly critical.
[0003] A fixture, a crucial tool for securing the cylinder head, typically consists of multiple clamping points to ensure a consistent position and orientation during machining. When designing the fixture, the distribution of clamping force must be carefully considered to prevent deformation or damage to the cylinder head due to uneven force.
[0004] In the automotive manufacturing and machining industries, the cylinder head is a core component of the engine, and its machining accuracy and efficiency are directly related to the overall performance of the engine. Fixtures play a vital role here, ensuring the stability of the cylinder head during machining and guaranteeing accurate and repeatable positioning.
[0005] However, based on the existing description, the currently used fixed tooling appears to have some limitations, particularly in terms of adaptability to cylinder heads of varying sizes. If the fixed tooling is designed with a limited adjustment range, it may struggle to accommodate even minor changes in cylinder head size. This could result in frequent tooling changes when machining cylinder heads of varying sizes, or the inability to machine certain cylinder heads.
[0006] Furthermore, cylinder heads of different specifications may require different clamping forces. If the clamping mechanism of the fixed tooling is not flexible enough, some cylinder heads may be under-clamped or over-clamped during machining, thus affecting machining quality and efficiency. Utility Model Content
[0007] The main purpose of the utility model is to provide a fixing tool for cylinder head processing, which can effectively solve the problems raised in the background technology.
[0008] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0009] A fixed tool for machining a cylinder head, comprising a machining table, a chute, a screw and a fastening nut, wherein a plurality of the chute are annularly distributed on the machining table, a screw is inserted into each of the chute, and the screw is mounted on the machining table via a fastening nut;
[0010] The upper end of the spiral tube is provided with a bracket, and the notches at both ends of the bracket are connected to side arms through a rotating shaft assembly, and the side arms are rotated in the notches through the rotating shaft assembly to adjust the angle of the side arms;
[0011] A height adjustment rod is installed on each side arm, and the rod body of the height adjustment rod is provided with a first clamping block and a second clamping block, a clamping cavity is formed between the first clamping block and the second clamping block, and the cylinder head is clamped by the first clamping block and the second clamping block. A fixing nut is provided on the height adjustment rod to fix the first clamping block and the second clamping block, and the height of the first clamping block and the second clamping block can be adjusted by the height adjustment rod and the fixing nut to adapt to cylinder heads of different specifications.
[0012] Wherein, the surfaces of the fastening nut and the fixing nut are provided with rubber gaskets, and the inner diameters of the fastening nut and the fixing nut are the same;
[0013] The height adjustment rod and the screw have the same diameter, and the screw thread spacing is the same. The upper end of the screw is inserted into the lower end opening of the bracket and fixed by bolts, nuts and anti-slip washers.
[0014] The cross section of the bracket is designed in a "T" shape, and the shaft assembly is inserted into the openings at both ends of the bracket and is limitedly connected by nuts and anti-slip washers, and the shaft assembly is fixed to the side arm by bolts;
[0015] Wherein, the height adjustment rod is inserted into the screw hole provided in the side arm and connected thereto, and the height adjustment rod is adjusted along the screw hole provided in the side arm;
[0016] Among them, the second clamping block is designed in a "Z" shape, and the surfaces of the second clamping block and the first clamping block are bonded and connected with anti-slip rubber pads. The ends of the second clamping block and the first clamping block are sleeves, which are mounted on the height adjustment rod, and the fixing nuts are located at the upper and lower ends of the sleeves.
[0017] Compared with the prior art, the present invention has the following beneficial effects:
[0018] In this utility model, the tooling is key equipment for ensuring the precision and efficiency of cylinder head machining. This tooling not only has excellent clamping and fixing capabilities, but also ensures that the cylinder head always maintains a stable position during machining, avoiding any slight movement, thereby greatly improving machining accuracy and efficiency.
[0019] The fixture features an extremely comprehensive structural design, with stability achieved through precision screws and fastening nuts. This design ensures a tight connection between the fixture and the cylinder head, ensuring a stable and safe machining process. The fixture also offers a high degree of flexibility and adaptability. A convenient adjustment mechanism allows for easy adjustment of the clamping block position and height to accommodate cylinder head machining requirements of varying specifications and sizes.
[0020] The fixture's clamping cavity is optimally designed. It quickly and accurately clamps the cylinder head, saving time and further improving processing efficiency. Furthermore, the fixture's design takes operational convenience into account. Devices such as a height adjustment lever and a retaining nut allow operators to easily adjust the clamping block, significantly reducing operational complexity.
[0021] More notably, the fixture's clamping blocks are equipped with anti-slip rubber pads. This design prevents the cylinder head from slipping during machining, enhancing process safety. This fixture demonstrates exceptional performance in terms of stability, flexibility, adaptability, operational convenience, and safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0023] Figure 2 This is a top view of the overall structure of the utility model;
[0024] Figure 3 This is a side view of the overall structure of the utility model;
[0025] Figure 4 This is a diagram showing the clamping block, height adjustment rod and side arm of the utility model.
[0026] In the figure: 1. Processing table; 2. Slide; 3. Screw; 4. Fastening nut; 5. Bracket; 6. Side arm; 7. Rotating shaft assembly; 8. First clamping block; 9. Second clamping block; 10. Clamping cavity; 11. Height adjustment rod; 12. Fixing nut. DETAILED DESCRIPTION
[0027] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.
[0028] like Figure 1 - Figure 4 The figure shows a fixture designed specifically for cylinder head machining, featuring a detailed structure and comprehensive functionality. This fixture primarily consists of the following components: a machining table 1, chute 2, screw 3, and fastening nut 4. First, the machining table 1 is circularly arranged with multiple chute 2s, which serve as fixed tracks for the screw 3. A screw 3 is inserted into each chute 2, which is securely mounted to the machining table 1 via fastening nut 4, ensuring the stability of the entire fixture.
[0029] A bracket 5 is located at the upper end of the solenoid 3. This bracket 5 features a unique "T"-shaped cross-section, providing enhanced structural support. Side arms 6 are connected to the notches at either end of the bracket 5 via pivot assemblies 7. These notches not only insert into the openings at either end of the bracket 5 but also utilize nuts and non-slip washers to provide a position-limiting connection, ensuring stable rotation of the side arms 6. The pivot assemblies 7 allow the side arms 6 to rotate freely within the notches, allowing for adjustment of their angle to suit different processing requirements.
[0030] Each side arm 6 is equipped with a height adjustment rod 11. A first clamping block 8 and a second clamping block 9 are mounted on the rods 11. A clamping cavity 10 is formed between the first and second clamping blocks 8 and 9. The primary function of this cavity 10 is to clamp the cylinder head and ensure its stability during machining. To enhance clamping stability, non-slip rubber pads are bonded to the surfaces of the first and second clamping blocks 8 and 9.
[0031] The height adjustment rod 11 and the screw tube 3 have the same diameter, and their thread pitch is also the same. This allows the height adjustment rod 11 to be inserted into the screw hole provided in the side arm 6 and rotated to adjust its height to accommodate cylinder heads of varying specifications. Once the height is adjusted to the desired position, the first and second clamping blocks 8, 9 are secured to the height adjustment rod 11 using the fixing nut 12, ensuring secure clamping.
[0032] Furthermore, the second clamping block 9 is designed in a "Z" shape, with a sleeve at its end that fits over the height adjustment rod 11. Fixing nuts 12 are located at the upper and lower ends of the sleeves. Tightening the fixing nuts 12 further secures the positions of the first and second clamping blocks 8 and 9. To ensure stability during tightening, rubber gaskets are placed on the surfaces of the fastening nut 4 and the fixing nut 12, and their inner diameters are also kept consistent.
[0033] The entire tooling is exquisitely designed and fully functional. It can not only adapt to the processing needs of cylinder heads of different specifications, but also ensure stability and safety during the processing.
[0034] Clamping Process: Place the machining table 1 on a stable foundation and ensure it is level. Multiple circular slots 2 on the machining table 1 provide a fixed track for the screw tubes 3. Insert a screw tube 3 into each slot 2 and secure it to the machining table 1 with a tightening nut 4. The position of the clamping block can then be adjusted to accommodate cylinder heads of varying sizes.
[0035] A bracket 5 is provided at the upper end of the screw tube 3. The cross section of the bracket 5 is T-shaped, providing enhanced structural support. The notches at both ends of the bracket 5 are connected to the side arms 6 through the shaft assembly 7. The shaft assembly 7 is limited by a nut and an anti-slip gasket to ensure the stable rotation of the side arm 6. A height adjustment rod 11 is installed on each side arm 6, on which a first clamping block 8 and a second clamping block 9 are mounted. A clamping cavity 10 is formed between the first clamping block 8 and the second clamping block 9 for clamping the cylinder head. In order to enhance the clamping force, anti-slip rubber pads are connected to the surfaces of the two clamping blocks.
[0036] Height adjustment rod 11 has the same diameter and thread spacing as screw tube 3, allowing it to be inserted into the screw hole of side arm 6 and rotated to adjust the height to accommodate cylinder heads of different specifications. After adjusting to the appropriate position, use fixing nut 12 to secure the first clamping block 8 and the second clamping block 9 to the height adjustment rod 11.
[0037] Second clamping block 9 is designed in a "Z" shape, with sleeves at its ends, which fit over height adjustment rod 11. Fixing nuts 12 are located at the upper and lower ends of the sleeves. Tightening fixing nuts 12 further secures the positions of first and second clamping blocks 8 and 9. Both tightening nut 4 and fixing nut 12 are fitted with rubber gaskets, and their inner diameters are consistent, ensuring stability during tightening.
[0038] The fixed fixture precisely clamps and stably secures the cylinder head, ensuring it remains in position during machining, thereby improving machining accuracy and efficiency. This fixture is designed to accommodate the machining needs of cylinder heads of varying specifications, allowing for easy adjustment of the clamping block position and height, demonstrating a high degree of flexibility and adaptability.
[0039] It should be noted that, in this document, relational terms such as first and second (number one, number two), etc., are used solely to distinguish one entity or operation from another, and do not necessarily require or imply any actual relationship or order between these entities or operations. However, the terms "comprise," "include," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the phrase "comprises a..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the elements.
[0040] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.
Claims
1. A fixed tool for cylinder head processing, comprising a processing table (1), a chute (2), a screw (3) and a fastening nut (4), wherein a plurality of the chute (2) are distributed in an annular manner on the processing table (1), a screw (3) is inserted into each of the chute (2), and the screw (3) is mounted on the processing table (1) via a fastening nut (4), characterized in that: The upper end of the spiral tube (3) is provided with a bracket (5), and the notches at both ends of the bracket (5) are connected to side arms (6) via a rotating shaft assembly (7), and the side arms (6) are rotated in the notches via the rotating shaft assembly (7) to adjust the angle of the side arms (6); A height adjustment rod (11) is installed on each of the side arms (6), and a rod body of the height adjustment rod (11) is provided with a first clamping block (8) and a second clamping block (9), a clamping cavity (10) is formed between the first clamping block (8) and the second clamping block (9), and the cylinder head is clamped by the first clamping block (8) and the second clamping block (9). A fixing nut (12) is provided on the height adjustment rod (11) and fixes the first clamping block (8) and the second clamping block (9). The height of the first clamping block (8) and the second clamping block (9) is adjusted by the height adjustment rod (11) and the fixing nut (12) to adapt to cylinder heads of different specifications.
2. The fixing fixture for cylinder head processing according to claim 1, characterized in that: The surfaces of the fastening nut (4) and the fixing nut (12) are provided with rubber gaskets, and the inner diameters of the fastening nut (4) and the fixing nut (12) are the same.
3. The fixing fixture for cylinder head processing according to claim 2, characterized in that: The height adjustment rod (11) and the screw tube (3) have the same diameter, and the screw thread spacing of the height adjustment rod (11) and the screw tube (3) is the same. The upper end of the screw tube (3) is inserted into the opening at the lower end of the bracket (5) and fixed by bolts, nuts and anti-slip washers.
4. The fixing fixture for cylinder head processing according to claim 3, characterized in that: The cross section of the bracket (5) is designed to be T-shaped, and the shaft assembly (7) is inserted into the openings at both ends of the bracket (5) and is limitedly connected by nuts and anti-slip washers. The shaft assembly (7) and the side arm (6) are fixed by bolts.
5. The fixing fixture for cylinder head processing according to claim 4, characterized in that: The height adjustment rod (11) is inserted into the screw hole provided on the side arm (6) and connected thereto, and the height adjustment rod (11) is adjusted along the screw hole provided on the side arm (6).
6. The fixing fixture for cylinder head processing according to claim 5, characterized in that: The second clamping block (9) is designed in a "Z" shape, and the surfaces of the second clamping block (9) and the first clamping block (8) are bonded with anti-slip rubber pads. The ends of the second clamping block (9) and the first clamping block (8) are sleeves, which are sleeved on the height adjustment rod (11), and the fixing nuts (12) are located at the upper and lower ends of the sleeves.