Automobile cylinder head machining clamp

Abstract

The utility model provides a kind of automobile cylinder cover processing fixture, it is related to machining equipment technical field, automobile cylinder cover processing fixture includes base and fixed mechanism, fixed mechanism includes fixed seat and fixed assembly, fixed seat is set on base, and for placing cylinder cover, fixed assembly is set on fixed seat, and for fixed cylinder cover, the bottom of cylinder cover is set on fixed seat, and the bottom of cylinder cover has processing position;The bottom of base is penetrated and is set with first avoiding hole in the correspondence of processing position, the bottom of fixed seat is penetrated and is set with second avoiding hole in the correspondence of processing position. Through fixed assembly, cylinder cover is fixedly arranged on fixed seat, can be used to process the upper side and the periphery of cylinder cover, processing equipment can also sequentially pass through first avoiding hole and second avoiding hole and act on the processing position of cylinder cover bottom, to process the bottom of cylinder cover, to realize the double-sided processing of cylinder cover, guarantee processing precision, improve processing efficiency, reduce processing cost.

Description

Technical Field

[0001] This utility model relates to the field of machining equipment technology, and in particular to a machining fixture for automobile cylinder heads. Background Technology

[0002] The cylinder head is a crucial component of an automotive engine, performing several key functions, including forming the combustion chamber, guiding intake and exhaust air, and mounting spark plugs or fuel injectors. The machining precision of the cylinder head has a vital impact on engine performance, fuel economy, emissions, and overall reliability.

[0003] For example, patent CN221952842U discloses a cylinder head machining fixture that can adjust the clamping position as needed, thus resolving the impact of the original protruding structure on the clamping position of the cylinder head side without needing to move the cylinder head. However, the cylinder head is fixed on a machining platform with its bottom in contact with the platform and its top facing upwards for machining. While this machining method meets the machining requirements for the top of the cylinder head, after machining, the cylinder head needs to be removed from the machining platform and re-clamped onto another machining device for bottom machining. This process not only increases the clamping and disassembly time but may also lead to clamping errors, affecting machining accuracy. Utility Model Content

[0004] In view of this, the present invention proposes an automotive cylinder head machining fixture, which can solve the problem that existing machining fixtures cannot simultaneously process the top and bottom of the cylinder head, resulting in long processing time, high cost, and potential impact on machining accuracy.

[0005] The technical solution of this utility model is implemented as follows:

[0006] This utility model provides an automotive cylinder head machining fixture, comprising:

[0007] Base; and

[0008] A fixing mechanism includes a fixing seat and a fixing component. The fixing seat is disposed on the base and is used to place the cylinder head. The fixing component is disposed on the fixing seat and is used to fix the cylinder head. The bottom of the cylinder head is disposed on the fixing seat and has a machining position at the bottom.

[0009] The bottom of the base is provided with a first clearance hole corresponding to the processing position, and the bottom of the fixed seat is provided with a second clearance hole corresponding to the processing position.

[0010] Based on the above technical solutions, preferably, the fixing component includes a plurality of rotation drive members disposed on the fixing base, the rotating end of the rotation drive member is provided with a fixing arm, and each fixing arm is located on the periphery of the cylinder head and acts on the cylinder head.

[0011] More preferably, the rotation drive component includes a rotary hydraulic cylinder, the fixed base has an oil passage inside, the oil passage is connected to each of the rotary hydraulic cylinders, and the fixed base has an oil inlet and an oil outlet connected to the oil passage.

[0012] Based on the above technical solutions, preferably, the cross-sectional dimension of the first clearance hole is larger than that of the second clearance hole, and the bottom of the fixing base is provided with a guide structure, which is disposed on the periphery of the second clearance hole and is arranged in a stepped manner.

[0013] Based on the above technical solutions, preferably, it also includes a rotating mechanism, which has two rotating ends connected to both ends of the base.

[0014] More preferably, the fixing mechanism is provided in two sets, and the two sets of fixing mechanisms are respectively provided on both sides of the base in the length direction. The first clearance hole is provided on both sides of the base in the length direction, and is respectively provided with two processing positions.

[0015] More preferably, the fixing mechanism further includes two uprights, which are respectively disposed at both ends of the base along its length, and the two rotating ends are respectively connected to the two uprights.

[0016] Based on the above technical solution, preferably, a hollow hole is provided between the two first clearance holes, and multiple reinforcing ribs are provided at intervals in the hollow hole.

[0017] Based on the above technical solutions, preferably, the fixing mechanism further includes a plurality of support members spaced apart on the fixing seat, each of the support members being used to support the corners of the bottom of the cylinder head.

[0018] Based on the above technical solutions, preferably, the fixing mechanism is detachably mounted on the base.

[0019] The automotive cylinder head machining fixture of this invention has the following advantages over the prior art:

[0020] (1) The cylinder head is fixed on the fixed seat by the fixing component. The upper part and the periphery of the cylinder head can be processed by the processing equipment. With the setting of the first clearance hole and the second clearance hole, the processing equipment can pass through the first clearance hole and the second clearance hole in sequence to act on the processing position at the bottom of the cylinder head, thereby processing the bottom of the cylinder head. This achieves double-sided processing of the cylinder head, ensuring processing accuracy, improving processing efficiency, and reducing processing cost.

[0021] (2) The hydraulic oil is supplied to the rotary hydraulic cylinder through the oil passage, providing a stable driving force so that the fixed arm can rotate smoothly and the cylinder head can be firmly fixed. By opening the oil passage inside the fixed seat, the oil passage can be reasonably planned according to the position and layout of the rotary hydraulic cylinder, connecting each rotary hydraulic cylinder with the shortest path. This can make full use of the internal space of the fixed seat, reduce the extra space occupied by external oil pipe connections, and make the entire fixture more compact. At the same time, it effectively avoids the arrangement of many external oil pipes, reduces the vertical beams of external connecting pipes, and makes the fixture look cleaner and simpler. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of the automotive cylinder head machining fixture of this utility model;

[0024] Figure 2 This is a perspective view of the automotive cylinder head machining fixture of this utility model from another direction;

[0025] Figure 3 This is a schematic diagram of the structure of the fixing mechanism in the automotive cylinder head processing fixture of this utility model, which clamps and fixes the cylinder head.

[0026] Figure 4 This is a schematic diagram illustrating the bottom structure of the automotive cylinder head machining fixture of this utility model.

[0027] Figure 5 This is a schematic diagram of the fixing mechanism in the automobile cylinder head machining fixture of this utility model;

[0028] Figure 6 This is an exploded view of the fixing mechanism in the automotive cylinder head machining fixture of this utility model;

[0029] Figure 7This is a schematic diagram of the structure used to demonstrate the second clearance hole in the automotive cylinder head machining fixture of this utility model;

[0030] Figure 8 This is a schematic diagram of the structure of the fixed seat in the automobile cylinder head machining fixture of this utility model;

[0031] Figure 9 for Figure 8 Sectional view of section AA.

[0032] Figure label:

[0033] 1. Base; 11. First clearance hole; 12. Hole; 13. Reinforcing rib; 2. Fixing mechanism; 21. Fixing seat; 211. Second clearance hole; 212. Oil passage; 213. Oil inlet; 214. Oil outlet; 215. Guide structure; 22. Fixing component; 221. Rotation drive component; 222. Fixing arm; 23. Support component; 3. Cylinder head; 31. Machining position; 4. Rotation mechanism; 41. Rotating end; 5. Stand. Detailed Implementation

[0034] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0035] like Figures 1 to 9 As shown, this utility model provides an automotive cylinder head processing fixture, which includes a base 1 and a fixing mechanism 2. The fixing mechanism 2 includes a fixing seat 21 and a fixing component 22. The fixing seat 21 is disposed on the base 1 and is used to place the cylinder head 3. The fixing component 22 is disposed on the fixing seat 21 and is used to fix the cylinder head 3. The bottom of the cylinder head 3 is disposed on the fixing seat 21 and has a processing position 31 at the bottom. A first clearance hole 11 is provided through the bottom of the base 1 at the corresponding position of the processing position 31, and a second clearance hole 211 is provided through the bottom of the fixing seat 21 at the corresponding position of the processing position 31.

[0036] The cylinder head 3 is mounted on the fixed base 21, with its bottom facing the surface of the fixed base 21. The cylinder head 3 is fixed to the fixed base 21 by the fixing assembly 22, allowing machining equipment to process the top and periphery of the cylinder head 3. The first clearance hole 11 and the second clearance hole 211 allow the machining equipment to pass through them sequentially to operate on the machining position 31 at the bottom of the cylinder head 3, thus machining the bottom of the cylinder head 3. This enables double-sided machining of the cylinder head 3, ensuring machining accuracy, improving machining efficiency, and reducing machining costs.

[0037] In some embodiments, the fixing mechanism 2 is detachably mounted on the base 1, allowing for quick replacement or repair according to different processing requirements, thus improving the maintenance convenience and adaptability of the fixture. When different types of cylinder heads 3 need to be processed or the fixing component 22 needs to be replaced, it is not necessary to replace the entire fixture; only the corresponding fixing mechanism 2 needs to be disassembled and replaced, greatly reducing usage costs and maintenance time, and improving the efficiency and economy of the fixture.

[0038] The fixing mechanism 2 can be detachably mounted on the base 1 using bolts, clips, or clamps. In this embodiment, the fixing mechanism 2 is connected to the base 1 by bolt threads. To ensure the connection stability of the fixing mechanism 2, multiple bolts are used, spaced apart. Specifically, the fixing mechanism 2 includes a fixing seat 21, and all other components of the fixing mechanism 2 are mounted on the fixing seat 21. Therefore, the fixing mechanism 2 is detachably mounted on the base 1, meaning the fixing seat 21 is detachably mounted on the base 1. For easy installation and disassembly, bolts are connected to the edge of the fixing seat 21 for detachable connection to the base 1.

[0039] In some embodiments, the fixing assembly 22 includes a plurality of rotation drive members 221 disposed on the fixing base 21. The rotating end 41 of each rotation drive member 221 is provided with a fixing arm 222. Each fixing arm 222 is located on the periphery of the cylinder head 3 and acts on the cylinder head 3. By rotating the fixing arms 222 through the rotation drive members 221, the position of the fixing arms 222 can be flexibly adjusted, allowing the fixing arms 222 to clamp and release the cylinder head 3. Furthermore, this enhances the adaptability of the clamp to cylinder heads 3 of different shapes and sizes, improving the versatility of the clamp.

[0040] The rotation drive component 221 includes a rotary motor, a rotary cylinder, and a rotary hydraulic cylinder. In this embodiment, the rotation drive component 221 is a rotary hydraulic cylinder, which is used to connect with the fixed arm 222 to drive the rotation of the fixed arm 222.

[0041] The fixed base 21 has an internal oil passage 212 that communicates with each of the rotary hydraulic cylinders. The fixed base 21 has an oil inlet 213 and an oil outlet 214 that communicate with the oil passage 212. The oil passage 212 supplies hydraulic oil to the rotary hydraulic cylinders, providing a stable driving force that allows the fixed arm 222 to rotate smoothly and securely fix the cylinder head 3. The oil inlet 213 and oil outlet 214 facilitate connection to an external hydraulic system, simplify control of the rotary hydraulic cylinder's extension and retraction, and enhance the ease of operation, further improving the fixture's automation and work efficiency.

[0042] The hydraulic cylinders are connected via the oil passage 212, which is located inside the fixed base 21. This allows for better integration of the hydraulic cylinders and the oil circuit system. The oil passage 212 can be rationally planned according to the position and layout of the hydraulic cylinders, connecting them along the shortest path. This fully utilizes the internal space of the fixed base 21, reducing the extra space occupied by external oil pipe connections and making the entire fixture more compact. It also effectively avoids the arrangement of numerous external oil pipes, reduces the vertical beams of external connecting pipes, and makes the fixture's appearance cleaner and simpler.

[0043] like Figures 1 to 9 As shown, in some embodiments, the cross-sectional dimension of the first clearance hole 11 is larger than that of the second clearance hole 211. A guide structure 215 is provided at the bottom of the fixing base 21, and the guide structure 215 is located around the second clearance hole 211 in a stepped configuration. By making the first clearance hole 11 larger, sufficient space can be provided for the processing equipment to pass through smoothly and move to the processing position 31 of the cylinder head 3, thereby reducing the possibility of interference. Furthermore, the guide structure 215 guides the processing equipment as it passes through the second clearance hole 211, enabling it to more accurately align with the processing position 31, improving processing precision and efficiency. Of course, the stepped configuration can provide a more suitable guiding angle and position based on the different sizes and shapes of the processing equipment and the structural form of the parts to be processed on the cylinder head 3, enhancing the adaptability and practicality of the guide structure 215.

[0044] In some embodiments, the automotive cylinder head machining fixture further includes a rotating mechanism 4, which has two rotating ends 41 connected to both ends of the base 1. The rotating mechanism 4 allows the base 1 to rotate around its axis, facilitating adjustment of the machining angle of the cylinder head 3 to meet the angle requirements of different machining processes. This improves the fixture's flexibility and machining versatility, and reduces the time cost and operational complexity caused by frequent fixture changes or machine tool angle adjustments.

[0045] In some embodiments, the fixing mechanism 2 is provided in two sets, with the two sets of fixing mechanisms 2 respectively located on both sides of the base 1 along its length. Two first clearance holes 11 are provided on both sides of the base 1 along its length, and each corresponds to one of the two processing positions 31. This dual-station configuration allows two cylinder heads 3 to be fixed and processed simultaneously on the base 1, improving processing efficiency. Furthermore, since the two processing positions 31 are located on opposite sides, processing operations on one side will not interfere with the other side, ensuring the independence and stability of the processing.

[0046] like Figures 1 to 9 As shown, in some embodiments, the automotive cylinder head machining fixture further includes two supports 5, which are respectively disposed at both ends of the base 1 along its length. Two rotating ends 41 are respectively connected to the two supports 5. The supports 5 provide stable support points for the rotating mechanism 4, ensuring smooth operation of the rotating mechanism 4 during rotation. Furthermore, by connecting the rotating ends 41 to the supports 5, the rotation axis can be raised, making its height as close as possible to the center of gravity of the fixture as possible, further improving rotational stability and preventing wobbling or offset. This ensures the stability of the cylinder head 3 position during machining and further improves machining quality.

[0047] In some embodiments, a perforated hole 12 is provided between the two first clearance holes 11, and a plurality of reinforcing ribs 13 are provided at intervals within the perforated hole 12. The perforated hole 12 can reduce the weight of the base 1 and reduce material costs. At the same time, the reinforcing ribs 13 within the perforated hole 12 can ensure that the base 1 maintains structural strength while reducing weight, preventing deformation or damage to the base 1 during processing due to weight reduction, and ensuring service life.

[0048] In some embodiments, the fixing mechanism 2 further includes a plurality of support members 23 spaced apart on the fixing base 21, each support member 23 being used to support the corners of the bottom of the cylinder head 3. The support members 23 can provide auxiliary support to the corners of the bottom of the cylinder head 3, making the cylinder head 3 more evenly stressed during processing, preventing deformation or damage to the corners of the bottom of the cylinder head 3 due to lack of support, and further improving the processing quality and yield of the cylinder head 3.

[0049] like Figures 1 to 9 As shown above, the automotive cylinder head machining fixture provided in this application, with the fixing component 22 fixing the cylinder head 3 on the fixing base 21, allows machining equipment to process the top and periphery of the cylinder head 3. Through the setting of the first clearance hole 11 and the second clearance hole 211, the machining equipment can pass through the first clearance hole 11 and the second clearance hole 211 in sequence to act on the machining position 31 at the bottom of the cylinder head 3, thereby machining the bottom of the cylinder head 3. This achieves double-sided machining of the cylinder head 3, ensuring machining accuracy, improving machining efficiency, and reducing machining costs.

[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 machining fixture for automotive cylinder heads, characterized in that, include: Base (1); as well as The fixing mechanism (2) includes a fixing seat (21) and a fixing component (22). The fixing seat (21) is disposed on the base (1) and is used to place the cylinder head (3). The fixing component (22) is disposed on the fixing seat (21) and is used to fix the cylinder head (3). The bottom of the cylinder head (3) is disposed on the fixing seat (21), and the bottom of the cylinder head (3) has a machining position (31). The bottom of the base (1) is provided with a first clearance hole (11) through the corresponding position of the processing position (31), and the bottom of the fixed seat (21) is provided with a second clearance hole (211) through the corresponding position of the processing position (31).

2. The automotive cylinder head machining fixture as described in claim 1, characterized in that: The fixing component (22) includes a plurality of rotation drive members (221) disposed on the fixing base (21). The rotating end (41) of the rotation drive member (221) is provided with a fixing arm (222). Each fixing arm (222) is located on the periphery of the cylinder head (3) and acts on the cylinder head (3).

3. The automotive cylinder head machining fixture as described in claim 2, characterized in that: The rotating drive (221) includes a rotating hydraulic cylinder. The fixed base (21) has an oil passage (212) inside. The oil passage (212) is connected to each of the rotating hydraulic cylinders. The fixed base (21) has an oil inlet (213) and an oil outlet (214) connected to the oil passage (212).

4. The automotive cylinder head machining fixture as described in claim 1, characterized in that: The cross-sectional dimension of the first clearance hole (11) is larger than that of the second clearance hole (211). The bottom of the fixing base (21) is provided with a guide structure (215). The guide structure (215) is located on the periphery of the second clearance hole (211) and is arranged in a stepped manner.

5. The automotive cylinder head machining fixture as described in claim 1, characterized in that: It also includes a rotating mechanism (4), which has two rotating ends (41) connected to both ends of the base (1).

6. The automotive cylinder head machining fixture as described in claim 5, characterized in that: The fixing mechanism (2) is provided in two sets, and the two sets of fixing mechanisms (2) are respectively provided on both sides of the base (1) in the length direction. The first clearance hole (11) is provided on both sides of the base (1) in the length direction, and is respectively provided with two processing positions (31).

7. The automotive cylinder head machining fixture as described in claim 6, characterized in that: It also includes two uprights (5), which are respectively disposed at both ends of the base (1) in the length direction, and the two rotating ends (41) are respectively connected to the two uprights (5).

8. The automotive cylinder head machining fixture as described in claim 6, characterized in that: A perforated hole (12) is provided between the two first clearance holes (11), and a plurality of reinforcing ribs (13) are provided at intervals in the perforated hole (12).

9. The automotive cylinder head machining fixture as described in claim 1, characterized in that: The fixing mechanism (2) also includes a plurality of support members (23) spaced apart on the fixing seat (21), each of the support members (23) being used to support each corner of the bottom of the cylinder head (3).

10. The automotive cylinder head machining fixture as described in claim 1, characterized in that: The fixing mechanism (2) is detachably mounted on the base (1).

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