Production method for manufacturing upper pipe string using hydraulic die
A technology of mold manufacturing and production method, which is applied in the field of manufacturing upper pipe strings by using hydraulic molds, and can solve the problems of the adverse effect of the crushing energy absorption effect of the steering column assembly, the difficulty of accurately controlling the height of the fins, and the time-consuming and labor-consuming problems. , to achieve the effect of convenient automatic production, good yield and labor saving
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Embodiment 1
[0044] Such as Figure 2-7 As shown, a production method using hydraulic molds to manufacture upper pipe strings, including:
[0045] The hydraulic module 1, which provides pressure through a hydraulic press, is divided into two upper and lower symmetrical pressing parts 110 that can move toward or backward; the center of the hydraulic module is provided with a pressing part surrounded by upper and lower pressing parts. Cavity 120, the stressed end surface of each pressing part 110 facing the pressing cavity 120 is the pressing surface 111; the front and rear sides of the hydraulic module 1 are provided with slide bars 130;
[0046] Mandrel 2: It is cylindrical, installed and fixed at the center of the press-fit cavity 120, the outer diameter of the mandrel 2 is smaller than the inner diameter of the upper pipe column blank, and the difference between the outer diameter of the mandrel 2 and the inner diameter of the upper pipe column blank No more than 2 mm; four shaping groo...
Embodiment 2
[0056] Such as Figure 8 As shown, after the pre-inspection of the upper pipe column blank, the manipulator sends the upper pipe column blank into the hydraulic mold of Example 1 and sets it on the mandrel 2. The position sensor 220 at the bottom of the mandrel 2 is on the upper pipe column. After the blank is sent to the designated position, a control signal is sent to start the hydraulic press, and the hydraulic press drives the upper and lower pressing parts 111 to move toward each other. During the process of approaching each other, the pressing surface 111 is in sliding contact with the die head 310, pushing the die head 310 to press the upper column For the blank, the shaping head 313 presses out the convex hull on the blank of the upper pipe column; after holding for 4 seconds, the hydraulic press is lifted, the upper and lower pressing parts 111 are lifted, the die head 310 is reset, and the manipulator will push the finished product of the upper pipe column (such as ...
Embodiment 3
[0058] In actual production, due to the different degrees of wear of the upper pipe string material and the die head, and the short and long production time of the single upper pipe string calibration, the temperature of the die head is high, which affects the production accuracy of the upper pipe string, The life of the die will be affected to a certain extent. At this time, it should be stopped in time or other cooling measures should be taken; if necessary, a temperature sensor and cooling device can be added near the die to ensure continuous and stable production.
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