A new type of drill bit fastening device for drilling machine
A fastening device and drilling machine technology, applied in the direction of the chuck, etc., can solve the problems that affect the work quality and work efficiency, the drill bit is too long, the drill bit is eccentric, etc., so as to improve the work quality and work efficiency, and ensure the effect of accuracy
Inactive Publication Date: 2018-08-31
上海通外科技发展有限公司
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Problems solved by technology
[0002] At present, drilling machines are more and more widely used in construction, home decoration and other industries. When drilling, drilling machines need to replace drill bits of different lengths according to the depth of the hole; Driven by the rotation, the eccentric phenomenon of the drill bit often occurs because the drill bit is too long and only fixed at the end, resulting in a deflection of the hole, which seriously affects the work quality and work efficiency
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[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0019] see Figure 1-4 , an embodiment provided by the present invention: a novel drilling machine drill bit fastening device, comprising an outer jacket 1 and an inner jacket 5, the inner circular surface of the outer jacket 1 is provided with a steel ball chute 6, the The outer circular surface of the inner jacket 5 is provided with another group of steel ball runners 6 corresponding to the outer jacket 1, the inner jacket 5 is placed inside the outer jacket...
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The invention discloses a novel drilling machine drill bit fastening device. The novel drilling machine drill bit fastening device comprises an outer clamping sleeve (1) and an inner clamping sleeve (5). The inner circle surface of the outer clamping sleeve (1) is provided with a steel ball sliding groove (6). The outer circle surface of the inner clamping sleeve (5) is provided with the other set of steel ball sliding groove (6) corresponding to the outer clamping sleeve (1). The inner clamping sleeve (5) is placed in the outer clamping sleeve (1), and a plurality of rows of steel balls (7) are placed between the two sets of steel ball sliding grooves (6). The multiple rows of steel balls (7) are fixedly connected through a sleeve tool (8). The inner clamping sleeve (5) is internally provided with a set of main flow pipe (10), flow distributing pipes (11) and branch pipes (12), and the flow distributing pipes (11) and the branch pipes (12) communicate with the main flow pipe (10). A set of screwing pressing pipe bodies (13) are fixed to the front surface of the inner clamping sleeve (5). Each screwing pressing pipe body (13) is internally provided with a screwing pressing area (14), and each screwing pressing area (14) and the corresponding flow distributing pipe (11) communicate with each other.
Description
technical field [0001] The invention relates to a novel drilling machine drill bit fastening device. Background technique [0002] At present, drilling machines are more and more widely used in construction, home decoration and other industries. When drilling, drilling machines need to replace drill bits of different lengths according to the depth of the hole; Driven by the rotation, the eccentric phenomenon of the drill bit often occurs because the drill bit is too long and only fixed at the end, resulting in a deflection of the hole, which seriously affects the work quality and work efficiency. Contents of the invention [0003] The object of the present invention is to provide a novel drilling machine drill bit fastening device to solve the problems raised in the above-mentioned background technology. [0004] To achieve the above object, the present invention provides the following technical solutions: [0005] A new type of drill bit fastening device for a drilling ...
Claims
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IPC IPC(8): B23B31/107B23B31/30
CPCB23B31/107B23B31/305
Inventor 韦红生
Owner 上海通外科技发展有限公司