CN210023873U - Composite cutter bar for hole machining - Google Patents
Composite cutter bar for hole machining Download PDFInfo
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- CN210023873U CN210023873U CN201920872669.8U CN201920872669U CN210023873U CN 210023873 U CN210023873 U CN 210023873U CN 201920872669 U CN201920872669 U CN 201920872669U CN 210023873 U CN210023873 U CN 210023873U
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- cutter
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Abstract
The utility model relates to a composite cutter bar for hole machining, which comprises a cutter bar body, wherein the cutter bar body comprises a clamping part and a cutter mounting part, a drill bit mounting hole is arranged at the center of the cutter mounting part, and a plurality of bosses uniformly distributed on the circumference with the center of the cutter mounting part as the circle center are arranged on the end surface of the cutter mounting part; a cutter groove is formed in one side of the boss; a chip groove is arranged between the bosses; and a locking screw which is intersected with the drill bit mounting hole is arranged on the side surface of the cutter mounting part. The utility model provides high parts machining efficiency.
Description
Technical Field
The utility model relates to the technical field of machining, specifically a compound cutter arbor for spot facing work.
Background
In the process of machining parts, drilling and spot facing are often required to be carried out on the parts, such as machining of a disc portion of an automobile differential case. Because automobile differential casing is the casting shaping, the bolt hole needs drill alone, for the ease of the mounting pad, still need to carry out countersink processing to the hole after the drilling.
When the same hole is drilled and reamed, only one machining cutter can be mounted on a cutter bar of a common cutter once, so that the drilling and the reaming of the parts are finished by two procedures, namely, a hard alloy drill is used for drilling, and then the reamed cutter is used for machining a hole plane. The two machining processes increase the tool changing time and the feeding time, influence the part machining efficiency and are most obvious particularly in batch production.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a composite cutter arbor for spot facing cutter can be installed again to centre gripping drill bit to improve parts machining efficiency.
The utility model provides a technical scheme that its technical problem adopted is: a composite cutter bar for hole machining comprises a cutter bar body, wherein the cutter bar body comprises a clamping part and a cutter mounting part, a drill bit mounting hole is formed in the center of the cutter mounting part, and a plurality of bosses uniformly distributed on the circumference with the center of the cutter mounting part as the circle center are arranged on the end face of the cutter mounting part; a cutter groove is formed in one side of the boss; a chip groove is arranged between the bosses; and a locking screw which is intersected with the drill bit mounting hole is arranged on the side surface of the cutter mounting part.
Further, the locking screw and the drill bit mounting hole are arranged perpendicular to each other.
Furthermore, the four sides of the cutter groove are provided with openings, and the wall of the cutter groove is provided with a bolt hole for fixing the blade.
Furthermore, a threaded hole communicated with the drill bit mounting hole is formed in the center of the clamping part; and an adjusting screw rod is arranged in the threaded hole.
Furthermore, the wall of the cutter groove is provided with a heat dissipation groove.
Further, the heat dissipation groove is arranged on the knife groove bottom wall and is formed by the inclined arrangement of the knife groove bottom wall.
The utility model has the advantages that: the utility model discloses a compound cutter arbor for spot facing work sets up drill bit mounting hole and sword groove back through the cutter installation department at the cutter arbor, and the counter boring cutter can also be installed to the cutter arbor in can the centre gripping drill bit to add man-hour in the hole, can drill simultaneously and counter boring processing, promptly through a tool changing alright accomplish the hole and reach its planar processing, consequently the utility model discloses practiced thrift tool changing time and feed time, improved parts machining efficiency.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic front view of the present invention;
FIG. 3 is a cross-sectional view taken along A-A of FIG. 2;
FIG. 4 is a partial enlarged view of FIG. 2 at B;
shown in the figure: 1. the tool comprises a tool bar body, 11, a tool mounting portion, 12, a clamping portion, 111, a boss, 112, a drill mounting hole, 113, a tool groove, 114, a chip groove, 115, a locking screw, 116, a bolt hole, 117, a heat dissipation groove, 121, a threaded hole and 122, and an adjusting screw.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
As shown in fig. 1 and 2, the utility model discloses a compound cutter arbor for spot facing work, including cutter arbor body 1, cutter arbor body 1 includes clamping part 12 and cutter installation department 11, and clamping part 12 is used for cooperating with the lathe. A drill bit mounting hole 112 is formed in the center of the cutter mounting part 11, a plurality of bosses 111 uniformly distributed on the circumference with the center of the cutter mounting part 11 as the center of a circle are arranged on the end face of the cutter mounting part 11, and cutter grooves 113 are formed in one side of each boss 111; a chip groove 114 is arranged between the bosses 111; the side of the tool mounting portion 11 is provided with a locking screw 115 intersecting the drill mounting hole 112. The number of the bosses 111 may be any number greater than or equal to 2, and is 2 in the figure. The bosses 111 are uniformly distributed on the circumference taking the center of the cutter mounting part 11 as the circle center, so that the center of mass of the cutter bar is at the center of the cutter bar, and the cutter bar cannot vibrate when rotating.
The cutter arbor is adding man-hour in the hole, and drill bit tip cartridge is in drill bit mounting hole 112, and rethread locking screw 115 supports tight drill bit, fixes the drill bit, installs the counter boring blade on sword groove 113 again to add man-hour in the hole, can drill simultaneously and counter boring processing, promptly, through a tool changing alright accomplish the hole and reach its planar processing, consequently the utility model discloses practiced thrift tool changing time and feed time, improved parts machining efficiency. During machining, chips generated by the drill and the countersink are discharged from the chip discharge groove 114.
The drill mounting hole 112 intersects with the locking screw 115, and specifically, as shown in fig. 3, the locking screw 115 and the drill mounting hole 112 are perpendicular to each other, which is better for abutting against the drill than an oblique arrangement.
The insert can be directly engaged in the pocket 113 so that the pocket 113 is opened only at one side, and as shown in fig. 1, the pocket 113 is opened at four sides (having only a vertical wall and a bottom wall), and the wall of the pocket 113 is provided with a bolt hole 116 for fixing the insert, so that the countersink can be fixed to the pocket 113 by a screw. The blade is large in contact surface (four-side contact) with air after being arranged, and heat dissipation of the spot-facing blade during machining is facilitated.
The drilling depth requirements of different parts are different, as shown in fig. 3, a threaded hole 121 communicated with the drill mounting hole 112 is arranged in the center of the clamping part 12; the adjusting screw 122 is installed in the threaded hole 121, so that the extending length of the drill bit can be adjusted through the adjusting screw 122, the drill bit does not need to be replaced when different workpieces are machined, and the adjustment is convenient.
In cutting, a large amount of cutting heat is generated between the tool and the workpiece, which affects the life of the tool, and thus the groove wall of the pocket 113 is further provided with a heat dissipation groove 117. The heat dissipation groove 117 may be a groove formed in the bottom wall or the vertical wall of the pocket 113. Specifically, the heat dissipation groove 117 is disposed on the bottom wall of the blade groove 113 and is formed by obliquely disposing the bottom wall of the blade groove 113 (compared with the horizontal plane), that is, the heat dissipation groove 117 is formed by the gap between the bottom wall of the blade groove 113 and the plane of the tail end of the blade. Therefore, the tail end of the blade can be suspended as much as possible while the blade is fixed, and heat dissipation is facilitated.
The utility model discloses a compound cutter arbor adds man-hour in the hole, and the counter boring cutter can also be installed to the cutter arbor in the ability centre gripping drill bit, can drill simultaneously and counter boring processing to can adjust the extension length of drill bit through adjusting screw, cutter arbor convenient to use has improved parts machining efficiency, and adds the heat dissipation that does benefit to the blade man-hour.
Claims (6)
1. The utility model provides a compound cutter arbor for spot facing work, includes the cutter arbor body, the cutter arbor body includes clamping part (12) and cutter installation department (11), its characterized in that: a drill bit mounting hole (112) is formed in the center of the cutter mounting part (11), and a plurality of bosses (111) uniformly distributed on the circumference with the center of the cutter mounting part (11) as the circle center are arranged on the end face of the cutter mounting part (11); a cutter groove (113) is formed in one side of the boss (111); a chip groove (114) is arranged between the bosses (111); and a locking screw (115) intersected with the drill bit mounting hole (112) is arranged on the side surface of the cutter mounting part (11).
2. A composite tool bar for hole machining as claimed in claim 1, wherein: the locking screw (115) and the drill bit mounting hole (112) are arranged perpendicular to each other.
3. A composite tool bar for hole machining as claimed in claim 1, wherein: the cutter groove (113) is opened at four sides, and a bolt hole (116) for fixing the blade is arranged on the groove wall of the cutter groove (113).
4. A composite tool bar for hole machining as claimed in claim 1, 2 or 3, wherein: the center of the clamping part (12) is provided with a threaded hole (121) communicated with the drill bit mounting hole (112); and an adjusting screw (122) is arranged in the threaded hole (121).
5. A composite tool bar for hole machining as claimed in claim 4, wherein: the groove wall of the cutter groove (113) is provided with a heat dissipation groove (117).
6. A composite tool bar for hole machining as claimed in claim 5, wherein: the heat dissipation groove (117) is arranged on the bottom wall of the cutter groove (113) and is formed by obliquely arranging the bottom wall of the cutter groove (113).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872669.8U CN210023873U (en) | 2019-06-11 | 2019-06-11 | Composite cutter bar for hole machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920872669.8U CN210023873U (en) | 2019-06-11 | 2019-06-11 | Composite cutter bar for hole machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210023873U true CN210023873U (en) | 2020-02-07 |
Family
ID=69347503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920872669.8U Active CN210023873U (en) | 2019-06-11 | 2019-06-11 | Composite cutter bar for hole machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210023873U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101757A (en) * | 2021-12-10 | 2022-03-01 | 深圳大学 | Double-edge cutter and machining method thereof |
-
2019
- 2019-06-11 CN CN201920872669.8U patent/CN210023873U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114101757A (en) * | 2021-12-10 | 2022-03-01 | 深圳大学 | Double-edge cutter and machining method thereof |
| CN114101757B (en) * | 2021-12-10 | 2023-03-10 | 深圳大学 | Double-edge cutter and machining method thereof |
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