How to choose a Dalian 5-axis bolt tightening machine? Practical skills for assessing accuracy, efficiency, and adaptability

How to choose a Dalian 5-axis bolt tightening machine? Practical skills for assessing accuracy, efficiency, and adaptability

As a core equipment in the industrial assembly field, the performance of Dalian 5-axis bolt tightening machine directly affects the quality of product assembly and production efficiency. When selecting, it is necessary to focus on the three core dimensions of "precision, efficiency, and adaptability", master practical judgment skills, and then choose equipment that meets production needs.

Accuracy is the key to ensuring assembly quality, and special attention should be paid to torque control and coaxiality performance. In terms of torque accuracy, the torque error of high-quality equipment should be controlled within ± 3% (high-end models can reach ± 1%). When purchasing, the manufacturer can be requested to provide a torque calibration report to confirm whether the equipment has real-time torque monitoring and feedback function - this can avoid component detachment caused by loose bolts or thread damage caused by tight bolts. Coaxiality affects the stability of tightening, and it is necessary to observe whether the motion trajectories of the five axes of the equipment are accurately synchronized, without offset or jamming. Especially in the scenario of multi bolt synchronous tightening (such as engine cylinder assembly), poor coaxiality can easily lead to uneven force on each bolt, leaving safety hazards.

Efficiency needs to be determined by combining production pace and automation level. Firstly, let's look at the tightening speed of a single batch. High quality 5-axis models can achieve multi axis synchronous tightening, and the single station operation time is reduced by more than 40% compared to single axis equipment. When selecting, the theoretical tightening efficiency of the equipment can be compared with the continuous operation stability under actual working conditions according to the production line rhythm requirements (such as whether there are frequent occurrences of jamming and errors). Secondly, pay attention to the automation integration capability. If the production line needs to be connected to the MES system, it is necessary to confirm whether the equipment supports real-time data upload, automatic fault alarm and other functions to avoid increasing the cost of later transformation due to insufficient compatibility.

The compatibility check should take into account both product specifications and scenario requirements. From the product specifications, it is necessary to confirm the bolt diameter adaptation range of the equipment (such as M3-M16 or M5-M20), the ability to adjust the tightening axis spacing, and ensure that it can cover various bolt assembly requirements on the production line; If it involves irregular workpieces, it is also necessary to check whether customized fixtures are supported. From the perspective of scenario requirements, heavy-duty scenarios such as automobile manufacturing require the selection of models with high rigidity bodies and wear-resistant tightening shafts; For precision scenarios such as electronic assembly, lightweight and low-noise equipment should be prioritized, while confirming whether the equipment meets environmental standards such as dust and water resistance in the workshop (such as IP54 protection level).

In addition, when making a purchase, it is necessary to consider the manufacturer's after-sales service capabilities, such as whether they provide on-site installation and debugging, torque calibration training, quick replacement of vulnerable parts, and other services, to avoid affecting production due to delayed maintenance in the later stage. Based on the above points, we can select the Dalian 5-axis bolt tightening machine with high cost-effectiveness and strong adaptability