Internal cooling drill bit fixture
A drill fixture, cold type technology, applied in the direction of clamping, manufacturing tools, boring/drilling, etc., can solve the problems that affect the processing surface size, shape tolerance, surface roughness, drilling and cutting temperature, which are difficult to discharge and have not yet been obtained. Reasonable improvement and other issues to achieve the effect of ensuring dimensional accuracy and surface roughness, improving machining accuracy and surface roughness, and simple structure
Inactive Publication Date: 2018-03-16
AVIC STANDARD PARTS MFG
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Problems solved by technology
Deep hole processing, especially for difficult-to-cut materials (such as titanium alloys), if the cooling is not in place, it will cause the following disadvantages: first, the cutting temperature is difficult to discharge during drilling, reducing the durability of the drill bit; second, waste Chips stick to the surface of the drill bit and the cutting edge, affecting the size, shape tolerance and surface roughness of the machined parts; third, if the chip is not removed in time, it will also cause the drill bit to break
Method used
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Embodiment Construction
[0020] The specific implementation, structure, features and functions of the internally cooled drill fixture according to the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.
[0021] see Figure 1 to Figure 4 , the inner-cooled drill clamp of the present invention includes a collet 2, a collet body 3, and a hose 6, and is characterized in that: the front section and the rear section of the collet body 3 are respectively equipped with a collet 2 and a joint seat 5, and the spring The through hole inside the chuck 2 communicates with the through hole of the joint seat 5 , the through hole tail of the joint seat 5 is connected with a joint 7 , and the other end of the joint 7 is connected with a hose 6 . A gasket 4 is provided between the collet 2 and the joint seat 5 . There is an inner hole in the middle of the gasket 4, the front end is set as a concave end surface, and the outer circumference is set...
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The invention discloses an internal cooling drill bit fixture. The internal cooling drill bit fixture comprises spring chucks (2), a fixture body (3) and hoses (6), and is characterized in that the spring chucks (2) and joint bases (5) are respectively mounted at the front section and the back section in the fixture body (3); through holes in the spring chucks (2) communicate with through holes ofthe joint bases (5); the tail parts of the through holes of the joint bases (5) are connected with joints (7); the other ends of the joints (7) are connected with the hoses (6); sealing pads (4) arearranged between the spring chucks (2) and the joint bases (5); inner holes are formed in middles of the sealing pads (4); the front ends are set as inner concave end surfaces; the peripheries are setas step surfaces; small outer peripheral surfaces at the back ends of the sealing pads (4) are in interference fit with the head parts of the joint bases (5); and the inner holes of the sealing pads(4) communicate with the through holes of the joint bases (5). The internal cooling drill bit fixture is high in quality, stable, efficient, economical, simple in structure and suitable for popularization and application of injection cooling of cooling liquid in drill bit deep hole machining.
Description
technical field [0001] The invention belongs to the technical field of mechanical clamping devices, and in particular relates to an internal cooling drill clamp. Background technique [0002] Hole processing is an essential link in the mechanical manufacturing process, and deep hole processing is also a frequently encountered processing process. Deep hole processing, especially for difficult-to-cut materials (such as titanium alloys), if the cooling is not in place, it will cause the following disadvantages: first, the cutting temperature is difficult to discharge during drilling, reducing the durability of the drill bit; second, waste Chips adhere to the surface of the drill bit and the cutting edge, affecting the size, shape and position tolerance and surface roughness of the machined parts; the third is that the chips are not removed in time, and the drill bit will be twisted. For a long time, it has been difficult to inject coolant into the hole for deep hole machining ...
Claims
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IPC IPC(8): B23B41/02B23Q3/12B23Q11/00B23Q11/02B23Q11/10
CPCB23B41/02B23Q3/12B23Q11/0042B23Q11/02B23Q11/10
Inventor 张建勋涂俊尹军
Owner AVIC STANDARD PARTS MFG