One-time broaching formation process for tooth shape of serrated chain connector and broaching device
A molding process and a technology for connecting links, which is applied to broaching devices, broaching machines, manufacturing tools, etc., can solve the problems of poor processing accuracy and low work efficiency, and achieve the effects of long service life, high processing efficiency, and high surface finish
Inactive Publication Date: 2009-11-25
CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY
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Problems solved by technology
[0003] The purpose of the present invention is to provide a one-time broaching forming process and broaching device for the tooth shape of a sawtooth connecting link, so as to overcome the problems of poor machining accuracy and low work efficiency caused by the use of gear shaping and milling processes for multi-row tooth connecting links
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[0017] In the figure: 1. Pull head, 2. Connecting pin, 3. Single-edged broach, 4. Double-edged broach, 5. Pulling tire, 6. Press plate, 7. Workpiece (serrated link), 8. Positioning pin, 9. positioning block, 10. locking handle, 11. push rod, 12. camshaft, 13. pole, 14. nut.
[0018] The broaching forming process is as follows: install the handles of the single-edged broach 3 and the double-sided broach 4 in the two rectangular square holes of the slider 1, lock them with the connecting pin 2, and then connect the slider 1 with the broach. The pull bar connection of bed (the common broaching bed of prior art). The two rectangular holes on the broaching tire 5 are used to locate and guide the single-sided broach 3 and the double-sided broach 4, and the broaching broach 5 is fixed in the positioning hole of the faceplate of the broaching machine. Broaching process: start the machine tool to push the broach to the limit position at the right end, put the workpiece 7 to be process...
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The invention relates to the technical field of production of chain connectors for chains, and discloses a formation process for processing a tooth shape of a chain connector with multi-row teeth, in particular a one-time broaching formation process for the tooth shape of the serrated chain connector and a broaching device. The conventional method for processing the tooth shape of the serrated chain connector is completed by milling a row of external teeth and slotting two rows of internal teeth; the process method requires three times of positioning and clamping so as to cause that the position precision of the three rows of teeth is difficult to guarantee; and because the slotting efficiency is very low, the production of the chain connectors has long cycle and high cost. The one-time broaching formation process adopts a positioning and clamping mechanism for clamping half rings and positioning processing cutters, the tooth shape of the three rows of teeth is broached and formed for one time after one-time positioning and one-time clamping, and the tooth shape of the serrated chain connector with high precision is obtained; and the process has high processing efficiency, and high precision of intertooth space fit and pitch. The device mainly comprises a pull mold, a pressure plate, a positioning pin, a positioning block, a locking handle, a mandril, a cam shaft, a pole support and a nut.
Description
technical field [0001] The invention relates to the production technical field of link links for chains, and relates to a tooth shape processing and forming process for multi-row tooth link links, in particular to a one-time broaching forming process and drawing process for sawtooth link link tooth profiles. cutting device. Background technique [0002] The traditional sawtooth link tooth shape processing is completed by milling a row of outer teeth, and then slotting and machining two rows of inner teeth respectively. This process requires three positioning and clamping, which makes it difficult to guarantee the position accuracy of the three rows of teeth. The accumulation of machining errors has seriously affected the breaking load and fatigue life of the connecting link; due to the extremely low slotting efficiency, the production cycle of the connecting link is longer and the cost is higher; The pitch dimensional accuracy of the rings was also not guaranteed, causing t...
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Login to View More IPC IPC(8): B23D37/04B23D41/06
Inventor 鲁恩悦张学工刘彪张志斌温鑫范国杰
Owner CHINA COAL ZHANGJIAKOU COAL MINING MACHINERY