An Automatic Engine Cylinder Head Bolt Tightening Machine
Technology Explanation
Application Industry
Manufacturing Benefit
The present utility model relates to the field of engine assembly technology, and particularly to an automatic tightening machine for an engine cylinder head.
Background Art
An engine cylinder head is an important component of an engine. It is located at the top of the engine and covers the cylinder to prevent combustion gas and lubricating oil inside the cylinder from leaking. During installation of the engine cylinder head, screws or nuts on the cylinder head need to be tightened, and therefore an automatic engine cylinder head tightening machine is required.
A search of the prior art has identified Chinese Patent Publication No. CN214444417U, which discloses an automatic screw tightening device for an engine cylinder head. The device comprises a cylindrical body connected with a tightening shaft, wherein the bottom of the cylindrical body is provided with an internal hexagonal counterbore adapted to a hexagonal head of a bolt. The device further comprises a hollow cylinder, a magnetic ring, and an elastic member. The cylindrical body is inserted into the hollow cylinder and is rotatably connected thereto. The cylindrical body is rotatable about its own axis and is movable along a length direction of the hollow cylinder. The elastic member is arranged at the bottom of the hollow cylinder, and the magnetic ring is arranged at the bottom of the elastic member.
With the above arrangement, when tightening bolts, the tightening device can quickly adapt to cylinder heads of different heights, reduce labor requirements, and provide certain protection for the cylinder head. In addition, when attracting iron filings, the device can reduce the influence on the magnetic force of the magnetic member and attract more iron filings. However, during actual use, the device cannot effectively adjust its own angle to tighten screws at different positions. When tightening screws at different positions, operators need to frequently adjust the position of the device, thereby increasing the workload of the operators.
Summary of the Utility Model
To overcome the above deficiencies, the present utility model provides an automatic engine cylinder head tightening machine, which aims to solve the problem in the prior art that the device needs to be frequently adjusted or disassembled and assembled by operators when tightening screws at different positions.
To achieve the above object, the present utility model adopts the following technical solution:
An automatic engine cylinder head tightening machine comprises a support plate, wherein a servo motor is fixedly connected to an inner side of a top end of the support plate. An output end of the servo motor is fixedly connected with a rotating frame. A first electric telescopic rod is rotatably connected to an inner side of a top end of the rotating frame, and a cantilever is rotatably connected to an inner side of a bottom portion of the rotating frame. A left side of an outer wall of the first electric telescopic rod is rotatably connected with an inner side of a top end of the cantilever.
A rotating arm is rotatably connected to a left side of a bottom inner wall of the cantilever, and a second electric telescopic rod is rotatably connected to a right side of the bottom inner wall of the cantilever. A bottom portion of an outer wall of the second electric telescopic rod is rotatably connected with a right side of the rotating arm. A telescopic column is slidably connected inside the rotating arm. An electric spherical joint is fixedly connected to a bottom portion of the telescopic column. A rotating cover is arranged outside the electric spherical joint, and a positioning frame is fixedly connected to a bottom portion of the rotating cover. A tightening mechanism is arranged inside the positioning frame.
The present utility model is applicable to the automotive manufacturing industry, particularly in the field of engine assembly and automated fastening technologies. It can be widely used in engine production lines, cylinder head assembly processes, and intelligent manufacturing systems for tightening screws or bolts of engine cylinder heads.
During engine assembly, the cylinder head needs to be accurately positioned and securely fastened to the engine block through multiple screws or bolts. Traditional manual tightening operations generally require operators to repeatedly adjust the tightening tool according to different fastening positions, which may result in low assembly efficiency, increased labor intensity, and inconsistent tightening accuracy.
The automatic engine cylinder head tightening machine provided by the present utility model integrates servo drive technology, electric actuating mechanisms, multi-axis positioning structures, and automatic tightening mechanisms, enabling automatic adjustment of the tightening angle and position. The device is capable of adapting to different screw positions and various cylinder head assembly requirements, thereby improving fastening efficiency, assembly precision, and production automation level.
The utility model is mainly applicable to industries including:
Automotive Manufacturing Industry
Used in vehicle engine production and assembly lines for automated tightening of cylinder head bolts and other engine fastening components.Engine Manufacturing and Remanufacturing Industry
Suitable for assembly, maintenance, and refurbishment processes involving internal combustion engines.Intelligent Manufacturing and Industrial Automation Industry
Applicable to automated production lines requiring precise positioning, automatic fastening, and reduced manual intervention.Mechanical Equipment Manufacturing Industry
Can be integrated into specialized assembly equipment for engines, power systems, and other mechanical products requiring high-precision fastening operations.
In summary, the present utility model belongs to the field of automated engine assembly equipment, and provides an effective solution for improving the efficiency, accuracy, and automation level of cylinder head fastening operations.
1. In the present utility model, by starting the servo motor, the rotating frame can be driven to rotate. By starting the first electric telescopic rod, the cantilever can be driven to rotate relative to the rotating frame. By starting the second electric telescopic rod, the rotating arm can be driven to rotate relative to the bottom of the cantilever. By moving the telescopic column up and down, the electric spherical joint can be driven to move, and by activating the electric spherical joint, the rotating cover can be driven to rotate. The rotation of the rotating cover can drive the positioning frame and the tightening mechanism arranged thereon to rotate, thereby automatically adjusting the angle of the tightening mechanism to tighten screws at different positions. Manual operation by operators is not required, thereby reducing the workload of the operators.
2. In the present utility model, by starting the motor, the rotating disc and the rotating plate arranged thereon can be driven to rotate. The rotating plate can drive the L-shaped blocks to move through the reserved grooves, and can simultaneously drive the cross plate to rotate along with the rotating disc. When the L-shaped blocks move, the fixing clamps arranged thereon can be driven to clamp and secure screws to be tightened. The screws can then be tightened through the rotation of the cross plate. Therefore, the device can fix and tighten screws of different types and specifications, thereby improving the practicability of the device.