Quick-change chuck hole opener
A technology for quick-change chucks and hole openers, which can be used in tool joints, drills, etc., and can solve the problems of easy loosening of thread locking and inconvenient installation.
Inactive Publication Date: 2020-10-27
SUZHOU MAIKAFU IND TECH CO LTD
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Problems solved by technology
[0003] The existing hole opener is mainly composed of a center drill and a hole drill, and the two are generally made into an integrated structure by welding or other processes, or the split installation structure is locked with nuts, and the integrated structure can only be used when part of the damage All are invalid, the split structure is locked with nuts, in actual use, the installation is very inconvenient, and the locking of the thread is easy to loosen
Method used
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[0030] A quick change chuck hole opener such as Figure 1 to Figure 5 As shown: it includes a center drill 1 and a hole drill 2, the hole drill is detachably connected to the center drill, and also includes a clamping sleeve 3, the center drill passes through the clamping sleeve, and is connected with the center drill The clamping sleeve is fixedly connected, and the hole drill has a central hole 22 for installing the clamping sleeve;
[0031] The side wall of the clamping sleeve is provided with a positioning block 31, and the hole is drilled with a groove 21 for the insertion of the positioning block, and the groove includes a connected inlet groove 211 and a positioning groove 212. The inlet groove and the positioning groove form an "L" shape, the inlet groove is provided with a blocking block 213, and the blocking block is provided with an elastic member (not shown in the figure), and the elastic member drives the blocking block toward the The mouth of the inlet groove mo...
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The invention discloses a quick-change chuck hole opener. The quick-change chuck hole opener includes a clamping sleeve for clamping a center drill. The clamping sleeve includes an outer sleeve and aninner sleeve. The inner sleeve includes two clamping plates, the two clamping plates are connected by an abutment plate, and the side, facing the outside, of the abutment plate is a hollow structure.The center drill is installed in the clamping sleeve and clamped by the two clamping plates, with the force of the drill bit during drilling, the abutment plate of the two clamping plates is driven to move toward the hollow part, so that the clamping force of the clamping plates on the center drill is increased to ensure the clamping effect; the clamping sleeve is installed in a groove of a drillthrough a positioning block, the groove is provided with an "L"-shaped inlet groove and a positioning groove, and the inlet groove is provided with a blocking block which prevents the positioning block from falling off (that can prevent the center drill from falling off); and the blocking block automatically pops up and blocks by an elastic member, during disassembling, only a hand pulling leveris required to press down, so that the positioning block slides out of the inlet groove.
Description
technical field [0001] The invention belongs to the technical field of electric tools, in particular to a combined hole opener. Background technique [0002] The hole saw is a kind of sawing circular saw for processing circular holes. It can be used to open holes on metal, wood, plastic, glass, stone and other materials. It is extremely versatile because of its simple and flexible operation and easy portability. [0003] The existing hole opener is mainly composed of a center drill and a hole drill, and the two are generally made into an integrated structure by welding or other processes, or the split installation structure is locked with nuts, and the integrated structure can only be used when part of the damage All of them are invalid, and the split structure is locked with nuts. In actual use, the installation is very inconvenient, and the locking of the threads is easy to loosen. Contents of the invention [0004] The technical problem mainly solved by the present inv...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23B51/12
CPCB23B51/12B23B51/0473
Inventor 黄磊
Owner SUZHOU MAIKAFU IND TECH CO LTD