CN215698134U - Ring cover part inner wall curved surface counter sinking frock - Google Patents
Ring cover part inner wall curved surface counter sinking frock Download PDFInfo
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- CN215698134U CN215698134U CN202120911267.1U CN202120911267U CN215698134U CN 215698134 U CN215698134 U CN 215698134U CN 202120911267 U CN202120911267 U CN 202120911267U CN 215698134 U CN215698134 U CN 215698134U
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- drill
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- curved surface
- spot facing
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Abstract
The utility model relates to a spot facing tool for a curved surface of the inner wall of a ring sleeve type part, which is applied to spot facing machining of the curved surface of the inner wall of the ring sleeve type part and belongs to the technical field of spot facing technological equipment of the ring sleeve type part. The clamp comprises a through hole, through which the upper end of an extension rod penetrates through a ring sleeve part, and a chuck of a bench drill, wherein the lower end of the extension rod is connected with a cone angle straight shank twist drill through a three-jaw self-centering chuck, a drill sleeve is positioned with the ring sleeve part through a positioning pin, and the drill sleeve and the ring sleeve part are clamped together through flat tongs. And adjusting the clamping length of the extension rod according to the depth of the spot facing, and starting the bench drill to finish the inner wall curved surface spot facing of the ring sleeve type part. The utility model has the advantages of convenient installation, low manufacturing cost and high processing precision, and well completes the spot facing of the inner wall curved surface of the ring sleeve type part.
Description
Technical Field
The utility model relates to a spot facing tool for a curved surface of the inner wall of a ring sleeve type part, which is applied to spot facing machining of the curved surface of the inner wall of the ring sleeve type part and belongs to the technical field of spot facing technological equipment of the ring sleeve type part.
Background
At present, no special tool is provided for the spot facing of the inner wall curved surface of the ring sleeve type part, the precision is difficult to ensure if an electric hand drill or an angle drill is used for processing, and the spot facing is limited by the diameter of the inner wall of the ring sleeve type part; the electric spark machining needs to machine electrodes, is low in machining efficiency and high in cost, and is obviously not applicable to small-batch products, so that a tool for completing the spot facing of the inner wall curved surface of the ring sleeve type part by using bench drilling equipment is needed, certain machining precision is guaranteed, and low machining cost is consumed.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the utility model is as follows: the counter boring tool overcomes the limitation of the existing basic processing equipment, provides a counter boring tool for the inner wall curved surface of the ring sleeve type part, utilizes the existing basic processing equipment bench drill in a workshop, expands the processing range of the bench drill, and realizes the counter boring processing of the inner wall curved surface of the ring sleeve type part.
The technical solution of the utility model is as follows:
a spot facing tool for a curved surface of the inner wall of a ring sleeve part is characterized in that through holes are distributed in the ring sleeve part to be processed, and a straight rod with the diameter consistent with that of each through hole can penetrate through the two through holes;
the tool is used for spot facing on the inner wall of a ring sleeve part, the spot facing comprises an upper round hole and a lower taper hole, and the tool comprises a bench drill, an extension rod, a three-jaw self-centering chuck, a taper angle straight shank twist drill, a drill sleeve, a flat tongs, a measuring sample column and a positioning pin;
one end of the extension rod is fixedly connected with a chuck of the bench drill, and the other end of the extension rod is fixedly connected with a shank end of the taper angle straight shank twist drill through the three-jaw self-centering chuck;
the drill sleeve is positioned in the hexagonal direction through flat tongs and a positioning pin, the drill sleeve is placed on the inner wall of the ring sleeve part to be processed, the drill sleeve is placed on the counter sinking hole to be processed, the bottom surface of the drill sleeve is a curved surface, the curved surface of the bottom surface of the drill sleeve is matched with the curved surface of the inner wall of the ring sleeve part to be processed, and the top surface of the drill sleeve is a plane;
the measuring sample column is used for measuring the depth of the spot facing and is of an integrated processing and forming structure and comprises a small column at the top end, a large column in the middle and a cone at the bottom end, the small column at the top end is used for holding the measuring sample column in a hand, the diameter of the large column in the middle is consistent with that of a round hole above the spot facing, the height of the large column in the middle is d, and the distance from the intersection line of the round hole above the spot facing and a conical hole below the spot facing to the top surface of the drill sleeve is also d; the bottom end cone of the measuring sample column is matched with the taper hole below the counter sinking hole.
The working process is as follows:
and placing the drill sleeve at the position of the ring sleeve type part to be reamed, enabling the curved surface of the drill sleeve to be attached to the curved surface of the inner wall of the ring sleeve type part and the hole positions to be aligned, and then inserting the positioning pin. The flat tongs are used for clamping the drill sleeve and the ring sleeve together. The extension rod and the three-jaw self-centering chuck are firmly connected through threads, the upper end of the extension rod penetrates through a through hole in the upper part of the ring sleeve type part, then the position of the flat tongs on the bench drill platform is adjusted, the upper part of the extension rod can be just inserted into the bench drill chuck, and then the chuck is adjusted to clamp; the taper angle straight shank twist drill is arranged in the three-jaw self-centering chuck and clamped tightly, the clamping length of the suitable extension rod and the taper angle straight shank twist drill is adjusted, then the lower cutter depth of the chuck of the bench drill is adjusted to be suitable, the bench drill is started, the counter boring is tried, the cutter feeding is carried out for a small number of times, the depth of the counter bore is detected by the measuring sample column until the design size is reached, the stroke of the main shaft is locked at the moment, and the stroke of the main shaft does not need to be adjusted in the subsequent processing.
When the flat tongs are used for clamping the ring sleeve parts and the drill bushing, a cushion block with a proper size is placed in a clamping area of the flat tongs, glass cloth plate gaskets with proper thickness and size are placed on two sides of the flat tongs, then the ring sleeve parts are placed, the flat tongs are adjusted, and the ring sleeve parts and the drill bushing are clamped together.
The drill sleeve is used for preventing the drill bit of the taper angle straight shank twist drill from deviating, and the measuring sample column can be used for conveniently measuring the counter sinking depth;
further preferred embodiments of the present invention are: the bench drill is not limited to a bench drill, and spot facing can be realized by using mechanical processing equipment such as a milling machine, a drilling machine, a boring machine and the like;
further preferred embodiments of the present invention are: the part material of the drill bushing is T10A, and the hardness of the drill bushing after heat treatment reaches HRC 58-64, so that the drill bushing has sufficient strength and wear resistance;
further preferred embodiments of the present invention are: the top surface of the drill sleeve is a plane, the bottom surface of the drill sleeve is a curved surface consistent with the inner wall of the ring sleeve type part, and the drill sleeve is completely attached to the curved surface of the ring sleeve type part to be reamed in the reaming process;
further preferred embodiments of the present invention are: the positioning pin is of a stepped cylindrical structure, the diameter of a thin end is equal to that of a through hole of the ring sleeve type part, and the diameter of a thick end is equal to that of a counter-boring of the ring sleeve type part;
further preferred embodiments of the present invention are: the coaxiality of the counter bore and the existing through hole is ensured through the symmetrical through holes of the ring sleeve type part.
Further preferred embodiments of the present invention are: the drill sleeve is used for preventing the drill from deviating, and the reaming precision is ensured.
Further preferred embodiments of the present invention are: the flat tongs placed on the bench drill working platform do not need to be positioned, firstly, a drill sleeve is used for preventing a drill bit from deviating, and secondly, the bench drill can be automatically aligned in the spot facing process.
Further preferred embodiments of the present invention are: cushion blocks are placed below the ring sleeve type parts, gaskets are placed on two side faces of clamping, and the outer surfaces of the ring sleeve type parts are prevented from being damaged when the flat tongs are clamped.
Further preferred embodiments of the present invention are: the locating pin reaches the drill bushing edge all passes through the chamfer, prevents that the burr from influencing the installation accuracy.
Further preferred embodiments of the present invention are: a counter bore depth measurement sample column is machined according to the design depth of the counter bore, after machining is completed, the counter bore depth measurement sample column can be directly used for measuring, accuracy and convenience are achieved, and the problem that a vernier caliper is inconvenient to measure is solved.
The utility model has the advantages of
(1) The clamping device is integrally and rotatably connected to the top end of the telescopic rod, so that temporary assembly is not needed during use, and great convenience is brought to a user; after the telescopic rod is used, the telescopic rod is directly accommodated in the notch of the objective table and the bending part of the clamping mechanism, extra occupied space is not needed, and the carrying is convenient.
(2) The tool comprises a fixture, wherein the upper end of an extension rod penetrates through a through hole of a ring sleeve part to be clamped with a chuck of a bench drill, the lower end of the extension rod is connected with a taper angle straight shank twist drill through a three-jaw self-centering chuck, a drill sleeve is positioned with the ring sleeve part through a positioning pin, and the drill sleeve and the ring sleeve part are clamped together through a flat tongs. The upper end of the extension rod penetrates through a through hole of the ring sleeve type part to be clamped with a chuck of the bench drill, the lower end of the extension rod is connected with a taper angle straight shank twist drill through a three-jaw self-centering chuck, a drill sleeve is positioned with the ring sleeve type part through a positioning pin and clamped with the ring sleeve type part through flat tongs, the clamping length of the extension rod is adjusted according to the countersink depth, the bench drill is started, and then the inner wall curved surface countersink of the ring sleeve type part can be completed. The utility model has the advantages of convenient installation, low manufacturing cost and high processing precision, and well completes the spot facing of the inner wall curved surface of the ring sleeve type part.
Drawings
FIG. 1 is a schematic view of the overall structure of the tool of the present invention;
FIG. 2 is a schematic view of a clamping portion of the tool of the present invention;
FIG. 3 is a schematic view of a counter bore of a curved surface of an inner wall of a ring-shaped part;
FIG. 4 is a schematic view of a measurement sample column structure;
the measuring device comprises a bench drill 1, an extension rod 2, a ring sleeve type part 3, a 4-three-jaw self-centering chuck, a 5-taper angle straight shank twist drill 6, a drill sleeve 7, a flat tongs 8, a measuring sample column 9, a positioning pin 71, a cushion block 72 and a gasket.
Detailed Description
The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
As shown in fig. 1, the tooling for counterboring the inner wall curved surface of the ring sleeve part in the embodiment includes an extension rod 2, a three-jaw self-centering chuck 4, a taper angle straight shank twist drill 5, a drill sleeve 6, a measuring sample column 8 and a positioning pin 9. And placing the drill sleeve 6 at the position of the ring sleeve type part 3 to be reamed, enabling the curved surface of the drill sleeve 6 to be attached to the curved surface of the inner wall of the ring sleeve type part 3 and the hole positions to be aligned, and then inserting the positioning pin 9. The drill bush 6 and the ring bush type part 3 are clamped together by using the flat tongs 7. The extension rod 2 and the three-jaw self-centering chuck 4 are firmly connected through threads, the upper end of the extension rod 2 penetrates through a through hole in the upper part of the ring sleeve type part 3, then the position of the flat tongs 7 on the platform of the bench drill 1 is adjusted, the upper part of the extension rod 2 can be just inserted into the chuck of the bench drill 1, and then the chuck is adjusted to clamp; the taper angle straight shank twist drill 5 is arranged in the three-jaw self-centering chuck 4 and clamped tightly, the clamping length of the suitable extension rod 2 and the taper angle straight shank twist drill 5 is adjusted, then the lower cutter depth of the chuck of the bench drill 1 is adjusted to be suitable, the bench drill is started, the counter boring is tried, the cutter feeding is carried out for a small number of times, the depth of the counter bore is detected by the measuring sample column 8 until the design size is reached, the stroke of the main shaft is locked at the moment, and the stroke of the main shaft is not required to be adjusted in the subsequent processing.
As shown in fig. 2, when the flat tongs 7 clamps the ring sleeve type part 3 and the drill sleeve 6, a cushion block 71 with a proper size is placed in a clamping area of the flat tongs 7, glass cloth plate gaskets 72 with proper thickness and size are placed on two sides of the clamping area, then the ring sleeve type part 3 is placed, and then the flat tongs 7 is adjusted to clamp the ring sleeve type part 3 and the drill sleeve 6 together.
Examples
As shown in fig. 1-4, in the spot-facing tool for the curved surface of the inner wall of the ring sleeve part, the ring sleeve part 3 to be processed is a circular ring, two through holes are distributed at the top end of the circular ring, and two through holes are distributed at the bottom end of the circular ring;
the tool is used for spot facing on the inner wall of a ring sleeve part, the spot facing comprises an upper round hole and a lower taper hole, and the tool comprises a bench drill 1, an extension rod 2, a three-jaw self-centering chuck 4, a taper angle straight shank twist drill 5, a drill sleeve 6, flat tongs 7, a measuring sample column 8 and a positioning pin 9;
one end of the extension rod 2 is fixedly connected with a chuck of the bench drill 1, and the other end of the extension rod 2 is fixedly connected with a shank end of a taper angle straight shank twist drill 5 through a three-jaw self-centering chuck 4;
the drill sleeve 6 is positioned in the six directions through flat tongs 7 and a positioning pin 9, the drill sleeve 6 is placed on the inner wall of the ring sleeve part 3 to be processed, the drill sleeve 6 is placed on the counter sinking to be processed, the bottom surface of the drill sleeve 6 is a curved surface, the curved surface of the bottom surface of the drill sleeve 6 is matched with the curved surface of the inner wall of the ring sleeve part 3 to be processed, and the top surface of the drill sleeve 6 is a plane;
the measuring sample column 8 is used for measuring the depth of the spot facing, the measuring sample column 8 is of an integrated processing and forming structure and comprises a small column at the top end, a large column in the middle and a cone at the bottom end, the small column at the top end is used for holding the measuring sample column 8, the diameter of the large column in the middle is consistent with that of a round hole above the spot facing, the height of the large column in the middle is d, and the distance from the intersection line of the round hole above the spot facing and a conical hole below to the top surface of the drill sleeve 6 is also d; the bottom end cone of the measuring sample column 8 is matched with a taper hole below the counter sinking hole.
The working process is as follows:
and placing the drill sleeve 6 at the position of the ring sleeve type part 3 to be reamed, enabling the curved surface of the drill sleeve 6 to be attached to the curved surface of the inner wall of the ring sleeve type part 3 and the hole positions to be aligned, and then inserting the positioning pin 9. The drill bush 6 and the ring bush type part 3 are clamped together by using the flat tongs 7. The extension rod 2 and the three-jaw self-centering chuck 4 are firmly connected through threads, the upper end of the extension rod 2 penetrates through a through hole in the upper part of the ring sleeve type part 3, then the position of the flat tongs 7 on the platform of the bench drill 1 is adjusted, the upper part of the extension rod 2 can be just inserted into the chuck of the bench drill 1, and then the chuck is adjusted to clamp; the taper angle straight shank twist drill 5 is arranged in the three-jaw self-centering chuck 4 and clamped tightly, the clamping length of the suitable extension rod 2 and the taper angle straight shank twist drill 5 is adjusted, then the lower cutter depth of the chuck of the bench drill 1 is adjusted to be suitable, the bench drill is started, the counter boring is tried, the cutter feeding is carried out for a small number of times, the depth of the counter bore is detected by the measuring sample column 8 until the design size is reached, the stroke of the main shaft is locked at the moment, and the stroke of the main shaft is not required to be adjusted in the subsequent processing.
When the flat tongs 7 clamp the ring sleeve type part 3 and the drill bush 6, a cushion block 71 with proper size is placed in the clamping area of the flat tongs 7, glass cloth plate gaskets 72 with proper thickness and size are placed on two sides of the flat tongs, then the ring sleeve type part 3 is placed, then the flat tongs 7 is adjusted, and the ring sleeve type part 3 and the drill bush 6 are clamped together.
The drill sleeve 6 is used for preventing the drill bit of the taper angle straight shank twist drill 5 from deviating, and the measuring sample column 8 can be used for conveniently measuring the counter sinking depth;
the part material of the drill bushing 6 is T10A, and the hardness of the part material after heat treatment reaches HRC 58-64, so that the part material has enough strength and wear resistance;
the top surface of the drill sleeve 6 is a plane, the bottom surface of the drill sleeve is a curved surface consistent with the inner wall of the ring sleeve type part 3, and the drill sleeve is completely attached to the curved surface of the ring sleeve type part 3 to be reamed in the reaming process;
the positioning pin 9 is of a stepped cylindrical structure, the diameter of a thin end is equal to that of a through hole of the ring sleeve type part, and the diameter of a thick end is equal to that of a counter-boring of the ring sleeve type part;
the coaxiality of the counter bore and the existing through hole is ensured through the symmetrical through hole of the ring sleeve type part 3.
The drill sleeve 6 prevents the drill from deviating and ensures the accuracy of spot facing.
The flat tongs placed on the working platform of the bench drill 1 do not need to be positioned, firstly, the drill bit is prevented from deviating due to the drill sleeve 6, and secondly, the bench drill can be automatically aligned in the spot facing process.
Cushion blocks 71 are arranged below the ring sleeve type parts 3, gaskets 72 are arranged on two side faces of clamping, and the outer surfaces of the ring sleeve type parts 3 are prevented from being damaged when the flat tongs 7 are clamped.
The positioning pin 9 and the edge of the drill bushing 6 are chamfered, so that the installation precision is prevented from being influenced by burrs. The drill bushing 6 is provided with two step through holes;
a counter bore depth measurement sample column 8 is machined according to the design depth of the counter bore, after machining is completed, the depth measurement sample column 8 can be directly used for measuring, accuracy and convenience are achieved, and the difficulty that a vernier caliper is inconvenient to measure is solved.
The utility model is not described in detail and is within the knowledge of a person skilled in the art.
Claims (8)
1. The utility model provides a counter sinking frock of ring cover class part inner wall curved surface which characterized in that: through holes are distributed on the ring sleeve part (3) to be processed, the tool is used for spot facing on the inner wall of the ring sleeve part to be processed, and the spot facing comprises an upper round hole and a lower taper hole;
the tool comprises a bench drill (1), an extension rod (2), a three-jaw self-centering chuck (4), a taper angle straight shank twist drill (5), a drill sleeve (6), a flat tongs (7), a measuring sample column (8) and a positioning pin (9);
one end of the extension rod (2) is fixedly connected with a chuck of the bench drill (1), and the other end of the extension rod (2) is fixedly connected with a shank end of a taper angle straight shank twist drill (5) through a three-jaw self-centering chuck (4);
the drill sleeve (6) is positioned through flat tongs (7) and a positioning pin (9), the drill sleeve (6) is placed on a counter boring to be processed, the bottom surface of the drill sleeve (6) is a curved surface, the curved surface of the bottom surface of the drill sleeve (6) is matched with the curved surface of the inner wall of the ring sleeve type part (3) to be processed, and the top surface of the drill sleeve (6) is a plane;
the measuring sample column (8) is used for measuring the depth of the spot facing, the measuring sample column (8) is of an integrated processing and forming structure and comprises a small column at the top end, a large column in the middle and a cone at the bottom end, the small column at the top end is used for holding the measuring sample column (8), the diameter of the large column in the middle is consistent with that of a round hole in the spot facing, the height of the large column in the middle is d, and the distance from the intersection line of the round hole in the spot facing and a conical hole below to the top surface of the drill sleeve (6) is also d; the bottom end cone of the measuring sample column (8) is matched with a taper hole below the counter sinking hole.
2. The spot facing tool for the curved surface of the inner wall of the ring sleeve type part according to claim 1, is characterized in that: the bench drill (1) is replaced by a milling machine, a drilling machine or a boring machine.
3. The spot facing tool for the curved surface of the inner wall of the ring sleeve type part according to claim 1, is characterized in that: the part material of the drill bushing (6) is T10A, and the hardness of the drill bushing after heat treatment reaches HRC 58-64.
4. The spot facing tool for the curved surface of the inner wall of the ring sleeve type part according to claim 1, is characterized in that: the positioning pin (9) is of a stepped cylindrical structure, the diameter of a thin end is equal to that of a through hole of the ring sleeve part, and the diameter of a thick end is equal to that of a counter-boring of the ring sleeve part.
5. The spot facing tool for the curved surface of the inner wall of the ring sleeve type part according to claim 1, is characterized in that: and a cushion block (71) is arranged below the ring sleeve type part (3).
6. The spot facing tool for the curved surface of the inner wall of the ring sleeve type part according to claim 1, is characterized in that: and gaskets (72) are arranged on two clamping side surfaces of the ring sleeve type part (3).
7. The spot facing tool for the curved surface of the inner wall of the ring sleeve type part according to claim 1, is characterized in that: the edge of the positioning pin (9) is chamfered.
8. The spot facing tool for the curved surface of the inner wall of the ring sleeve type part according to claim 1, is characterized in that: the edge of the drill bushing (6) is chamfered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120911267.1U CN215698134U (en) | 2021-04-29 | 2021-04-29 | Ring cover part inner wall curved surface counter sinking frock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120911267.1U CN215698134U (en) | 2021-04-29 | 2021-04-29 | Ring cover part inner wall curved surface counter sinking frock |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215698134U true CN215698134U (en) | 2022-02-01 |
Family
ID=80030482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120911267.1U Active CN215698134U (en) | 2021-04-29 | 2021-04-29 | Ring cover part inner wall curved surface counter sinking frock |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215698134U (en) |
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2021
- 2021-04-29 CN CN202120911267.1U patent/CN215698134U/en active Active
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