CN211758718U - Tool for drilling inclined hole on end face of annular part - Google Patents
Tool for drilling inclined hole on end face of annular part Download PDFInfo
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- CN211758718U CN211758718U CN201922105892.2U CN201922105892U CN211758718U CN 211758718 U CN211758718 U CN 211758718U CN 201922105892 U CN201922105892 U CN 201922105892U CN 211758718 U CN211758718 U CN 211758718U
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- annular part
- inclined hole
- frock
- cyclic annular
- axis
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Abstract
The utility model provides a frock for cyclic annular part terminal surface bores inclined hole, includes the frock dish and is used for the threaded connection spare to the frock dish location on cyclic annular part, threaded connection spare wears to establish on the frock dish, threaded connection spare's axis and the axis coincidence setting of frock dish, one side pressure of frock dish is established on the terminal surface that cyclic annular part waited to bore the inclined hole position, another side pressure of frock dish is established on the auxiliary stay who is located cyclic annular part inside, establish the terminal surface of one side each other kept away from through threaded connection spare card frock dish and cyclic annular part, in order to restrict the displacement of frock dish for cyclic annular part, one side that cyclic annular part was kept away from to the frock dish is equipped with the round conical surface, the axis of conical surface and the axis coincidence setting of frock dish, the axis of waiting to bore the inclined hole is crossing and perpendicular with the conical surface, so that be convenient for follow the annular part terminal surface and bore the inclined hole. The utility model discloses become the processing of perpendicular hole with cyclic annular part terminal surface inclined hole, the location is accurate during processing inclined hole, and the difficult rupture of drill bit has improved inclined hole machining efficiency and processingquality.
Description
Technical Field
The utility model relates to a bore inclined hole frock field, especially relate to a frock that is used for cyclic annular part terminal surface to bore inclined hole.
Background
On some annular parts such as the outer seal ring in the shield machine main drive seal ring, because of the design requirements, a plurality of inclined holes which are obliquely arranged with the end face of the annular part need to be processed on the end face of the annular part in the processing process, and the requirements on the size and the position of each inclined hole are strict. At present, the annular part is generally horizontally placed and clamped, then the universal drilling machine is adjusted to the angle corresponding to the inclined hole and then is used for machining, and the twist drill is used for drilling through the universal drilling machine. Under the processing mode, the twist drill can be in an inclined state when initially contacting with the end face of the annular part, so that the twist drill can be in a stress imbalance state when just beginning to drill into the annular part in the drilling process, the twist drill is easy to deflect and vibrate in the feeding process, the size and the position precision of an inclined hole are influenced, the twist drill is also easy to bend or break due to deflection stress, the processing efficiency is reduced, the product quality of the annular part can be greatly influenced, the annular part needs to be subjected to repair welding or even scrapping seriously, and therefore the higher processing requirement is difficult to achieve when the inclined hole is drilled on the end face of the annular part in the prior art.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a frock for cyclic annular part terminal surface bores inclined hole improves the machining precision and the efficiency of boring the inclined hole at cyclic annular part terminal surface.
The utility model discloses a solve the technical scheme that above-mentioned technical problem adopted and be: the utility model provides a frock for cyclic annular part terminal surface bores inclined hole, includes the frock dish and is used for the threaded connection spare to the frock dish location on cyclic annular part, threaded connection spare wears to establish on the frock dish, threaded connection spare's axis and the axis coincidence setting of frock dish, one side pressure of frock dish is established on the terminal surface that cyclic annular part waited to bore the inclined hole position, another side pressure of frock dish is established on the auxiliary stay who is located cyclic annular part inside, establish the terminal surface of one side each other kept away from through threaded connection spare card frock dish and cyclic annular part, in order to restrict the displacement of frock dish for cyclic annular part, one side that cyclic annular part was kept away from to the frock dish is equipped with the round conical surface, the axis of conical surface and the axis coincidence setting of frock dish, the axis of waiting to bore the inclined hole is crossing and perpendicular with the conical surface, so that be convenient for follow the annular part terminal surface and bore the inclined hole.
Preferably, the threaded connecting piece adopts a single-head bolt, and a nut is screwed on the single-head bolt.
Preferably, the length of a connecting line between the big end and the small end of the conical surface along the radial direction is not less than twice of the diameter of the inclined hole to be drilled.
According to the technical scheme, the beneficial effects of the utility model are that:
the utility model provides a frock for annular part terminal surface inclined hole drilling, place the frock dish on the terminal surface that annular part waited to bore the inclined hole position in advance before beginning drilling, through threaded connection spare and the auxiliary stay cooperation that is located annular part inside with the frock dish compresses tightly on annular part, then when universal drilling machine drive fluted drill fed drilling, fluted drill will be with the conical surface contact of frock dish earlier, then bore thoroughly the frock dish, bore into the terminal surface of annular part again and process into the inclined hole, because the axis of waiting to bore the inclined hole intersects and is perpendicular with the conical surface, therefore when fluted drill begins to bore into the frock dish, fluted drill and conical surface are also in the vertical state, thereby guarantee that fluted drill can be in the stress balance state when just beginning to bore, avoid fluted drill because the unbalanced stress takes place incline and vibration in the feeding process, and when fluted drill begins to bore into annular part through the frock dish, because the end faces of the tool disc and the annular part are attached, the situation that the machining is influenced by the stress deflection can not occur any more, the size and the position precision of the inclined hole are ensured, and the twist drill is prevented from being bent or broken due to the oblique contact stress of the twist drill and the annular part. When a plurality of inclined holes are processed on the annular part as required, only need not hard up the back with threaded connection spare, the position of adjustment tool dish and with the tool dish on the conical surface position alignment that is not bored completely wait to bore the inclined hole, just can carry out the processing of next inclined hole, make the utility model discloses can be used for the continuous processing of a plurality of inclined holes, simple structure, easy and simple to handle, can not only guarantee the processingquality of inclined hole, can also promote machining efficiency by a wide margin.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
The labels in the figure are: 1. annular part, 2, tool disc, 3, threaded connection spare, 4, inclined hole, 5, the conical surface.
Detailed Description
Referring to the drawings, the specific embodiments are as follows:
a tool for drilling inclined holes in the end faces of annular parts comprises a tool disc 2 and a threaded connecting piece 3 used for positioning the tool disc 2 on an annular part 1, wherein the threaded connecting piece 3 penetrates through the tool disc 2, the axis of the threaded connecting piece 3 is overlapped with the axis of the tool disc 2, one side of the tool disc 2 is pressed on the end face of the annular part 1 at the position of an inclined hole 4 to be drilled, the other side of the tool disc 2 is pressed on an auxiliary support positioned in the annular part 1, the end face of one side, away from each other, of the tool disc 2 and the annular part 1 is clamped through the threaded connecting piece 3 so as to limit the displacement of the tool disc 2 relative to the annular part 1, in the embodiment, the threaded connecting piece 3 adopts a single-head bolt, and a nut is screwed on the single-head bolt; one side of the tool disc 2, which is far away from the annular part 1, is provided with a circle of conical surface 5, the axis of the conical surface 5 is superposed with the axis of the tool disc 2, and the axis of the inclined hole 4 to be drilled is intersected and vertical with the conical surface 5, so that the inclined hole 4 can be conveniently drilled from the conical surface 5 to the end surface of the annular part 1; in this embodiment, the length of the connection line between the big end and the small end of the conical surface 5 along the radial direction is not less than twice the diameter of the inclined hole 4 to be drilled, so as to ensure that the drilling can be smoothly started from the conical surface 5.
The utility model discloses a use method as follows:
1) according to the size requirement of the annular part, machining a tool disc and selecting a proper threaded connecting piece;
2) scribing an inclined hole reference circle diameter line and a hole center line on the end face of the annular part;
3) the annular part is supported and placed by three supporting points, wherein one supporting point is placed on a workbench of a universal drilling machine, and then the end face of the annular part is leveled;
4) adjusting the angle of the universal drilling machine dividing head to be the same as the angle of the inclined hole;
5) adjusting the annular part, and aligning the center of a twist drill to the scribing position of the inclined hole on the end face of the annular part;
6) placing a tool disc on the end face of the inclined hole marking position of the annular part, and enabling the tool disc to be tightly pressed on the annular part through the matching of a threaded connecting piece and an auxiliary support;
7) and finally, processing inclined holes according to the normal drilling procedure, loosening the threaded connecting piece after one inclined hole is processed, and then adjusting the positions of the tool disc and the conical surface to continue processing the next inclined hole.
The utility model has simple structure and simple operation; by the aid of the tool, the processing of the inclined hole on the end face of the annular part is changed into the processing of a vertical hole, the processing condition is improved, the positioning is accurate when the inclined hole is processed, the drill bit is not easy to break, and the processing efficiency and the processing quality of the inclined hole are improved; the device is suitable for workpieces with different diameters and processing inclined holes with different diameters, and has strong universality.
Claims (3)
1. The utility model provides a frock that is used for cyclic annular part terminal surface to bore inclined hole which characterized in that: comprises a tool disc (2) and a threaded connecting piece (3) used for positioning the tool disc (2) on an annular part (1), wherein the threaded connecting piece (3) is arranged on the tool disc (2) in a penetrating manner, the axis of the threaded connecting piece (3) is superposed with the axis of the tool disc (2), one side of the tool disc (2) is pressed on the end surface of the annular part (1) at which an inclined hole (4) is to be drilled, the other side of the tool disc (2) is pressed on an auxiliary support positioned in the annular part (1), the end surface of one side, far away from each other, of the tool disc (2) and the annular part (1) is clamped through the threaded connecting piece (3), so that the conical surface displacement of the tool disc (2) relative to the annular part (1) is limited, one side, far away from the annular part (1), of the tool disc (2) is provided with a circle of conical surface (5), and the axis of the tool disc (5) is superposed with the axis of the tool disc (2), the axial line of the inclined hole (4) to be drilled is intersected with and vertical to the conical surface (5) so as to facilitate the drilling of the inclined hole (4) from the conical surface (5) to the end surface of the annular part (1).
2. The tool for drilling the inclined hole on the end face of the annular part as claimed in claim 1, wherein: the threaded connecting piece (3) adopts a single-head bolt, and a nut is screwed on the single-head bolt.
3. The tool for drilling the inclined hole on the end face of the annular part as claimed in claim 1, wherein: the length of a connecting line between the big end and the small end of the conical surface (5) along the radial direction is not less than twice of the diameter of the inclined hole (4) to be drilled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922105892.2U CN211758718U (en) | 2019-11-29 | 2019-11-29 | Tool for drilling inclined hole on end face of annular part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922105892.2U CN211758718U (en) | 2019-11-29 | 2019-11-29 | Tool for drilling inclined hole on end face of annular part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211758718U true CN211758718U (en) | 2020-10-27 |
Family
ID=72962134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922105892.2U Active CN211758718U (en) | 2019-11-29 | 2019-11-29 | Tool for drilling inclined hole on end face of annular part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211758718U (en) |
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2019
- 2019-11-29 CN CN201922105892.2U patent/CN211758718U/en active Active
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