CN216298072U - Reversible countersink - Google Patents
Reversible countersink Download PDFInfo
- Publication number
- CN216298072U CN216298072U CN202122658634.4U CN202122658634U CN216298072U CN 216298072 U CN216298072 U CN 216298072U CN 202122658634 U CN202122658634 U CN 202122658634U CN 216298072 U CN216298072 U CN 216298072U
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- cutter
- blade
- countersink
- reversible
- groove
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Abstract
The utility model provides a reversible countersink, which comprises a cutter bar and a blade; the cutter bar is characterized in that two opposite cutter grooves are formed in the outer wall of the cutter bar, a mounting hole is formed between the two cutter grooves, the blade is movably mounted on the side wall of the mounting hole and comprises a cutter head and a cutter back, the cutter back is a flat arc-shaped cone, and the bottom of the cone is connected with the cutter head. According to the utility model, the cutter groove structure capable of fixing the blade is processed on the cutter bar, so that the blade is not required to be fixed by a screw, and the processing of a small bottom sinking hole is realized; and the direction can be changed in the guide slot to the blade, need not to change the whole of tool changing when processing, can realize processing at the both ends in the heavy bottom hole through the direction of changing the blade.
Description
Technical Field
The utility model relates to a forward and backward dual-purpose countersink.
Background
As shown in figure 3, a bottom hole with phi 9 is drilled on the butt joint end face of a part, a counter bore with phi 16 and 35mm deep is required to be scraped on the inner side face of an end frame, in the prior art, the part is processed by using a screw to fix a blade from the inner side through a cutter bar with a square groove, but because the inner space of the end frame is only 10mm, the space is insufficient, and the blade cannot be fixed through the screw, great difficulty is brought to processing.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a reversible countersink.
The utility model is realized by the following technical scheme.
The utility model provides a reversible countersink, which comprises a cutter bar and a blade; the cutter bar is characterized in that two opposite cutter grooves are formed in the outer wall of the cutter bar, a mounting hole is formed between the two cutter grooves, the blade is movably mounted on the side wall of the mounting hole and comprises a cutter head and a cutter back, the cutter back is a flat arc-shaped cone, and the bottom of the cone is connected with the cutter head.
The cutter groove is processed at one end of the cutter rod, and the distance between the edge of the cutter groove and the edge of the cutter blade is less than 10 mm.
The mounting hole is processed in the center of the cutter groove and is a square through hole perpendicular to the ground of the cutter groove.
The top center of blade is processed and is had square groove, and the width in square groove is the interval between two sword grooves on the cutter arbor.
The thickness of the blade is the width of the cutter groove.
The thickness of the tool bit is less than 5 mm.
The utility model has the beneficial effects that: the cutter groove structure capable of fixing the blade is processed on the cutter bar, so that the blade is not required to be fixed by screws, and the processing of a small bottom sinking hole is realized; and the direction can be changed in the guide slot to the blade, need not to change the whole of tool changing when processing, can realize processing at the both ends in the heavy bottom hole through the direction of changing the blade.
Drawings
FIG. 1 is a schematic cross-sectional structure of the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic view of a workpiece structure of the present invention;
in the figure: 1-cutter bar, 2-blade, 21-cutter head, 22-cutter back, 3-cutter groove and 4-mounting hole, A-blade mounting direction in reverse countersinking, and B-blade mounting direction in forward countersinking.
Detailed Description
The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.
A reversible countersink comprises a cutter bar 1 and a blade 2; two opposite tool grooves 3 are formed in the outer wall of the tool bar 1, a mounting hole 4 is formed between the two tool grooves 3, the blade 2 is movably mounted on the side wall of the mounting hole 4, the blade 2 comprises a tool bit 21 and a tool back 22, the tool back 22 is a flat arc-shaped cone, and the bottom of the cone is connected with the tool bit 21. The cutter groove of processing on the cutter arbor 1 is used for restricting the rotation of blade, has certain guide effect when the blade commutates simultaneously, and the inner wall of mounting hole 4 and the bottom in two cutter grooves are connected to be a square arch, and the cooperation of the square groove of processing out on arch and the blade is spacing on the cutter arbor with the blade.
The cutter groove 3 is processed at one end of the cutter rod 1, and the edge of the cutter groove 3 is less than 10mm away from the edge of the cutter blade 2. The applicability of the countersink is ensured while the strength of the cutter bar is increased.
The mounting hole 4 is processed in the center of the cutter groove 3, and the mounting hole 4 is a square through hole perpendicular to the ground of the cutter groove 3. The mounting hole 4 is arranged in the center of the cutter groove 3, so that the blades can be mounted at two ends of the mounting hole, and the blades can be mounted in a reversing manner.
The top center processing of blade 2 has square groove, and the width in square groove is the interval between two sword grooves 3 on the cutter arbor 1. The square groove is matched with the mounting hole on the cutter bar to limit the blade to move up and down and rock.
The thickness of the blade 2 is the width of the blade pocket 3, so that the blade pocket can limit the rotation of the blade 2.
The thickness of the cutter head is less than 5mm, and the size of the counter bore which can be machined is determined by the thickness of the cutter head, so that the thinner the cutter head is, the better the cutter head is, and the strength of the cutter blade is ensured.
As shown in fig. 1, the direction a is a direction of mounting the insert during reverse spot facing, and the right end of the workpiece counterbore is spot-faced from the direction indicated by a by mounting the tool holder on a rotating device such as a hand wheel, and the direction B is a direction of mounting the insert during forward spot facing, which is a direction of mounting the insert during forward spot facing.
Claims (6)
1. The utility model provides a positive and negative dual-purpose countersink, includes cutter arbor (1) and blade (2), its characterized in that: the cutter bar is characterized in that two opposite cutter grooves (3) are formed in the outer wall of the cutter bar (1), a mounting hole (4) is formed between the two cutter grooves (3), the blade (2) is movably mounted on the side wall of the mounting hole (4), the blade (2) comprises a cutter head (21) and a cutter back (22), the cutter back (22) is a flat arc-shaped cone, and the bottom of the cone is connected with the cutter head (21).
2. The reversible countersink of claim 1, wherein: the cutter groove (3) is processed at one end of the cutter bar (1), and the distance between the edge of the cutter groove (3) and the edge of the cutter blade (2) is less than 10 mm.
3. The reversible countersink of claim 1, wherein: the mounting hole (4) is processed in the center of the cutter groove (3), and the mounting hole (4) is a square through hole perpendicular to the ground of the cutter groove (3).
4. The reversible countersink of claim 1, wherein: the top center processing of blade (2) has square groove, and the width in square groove is the interval between two sword grooves (3) on cutter arbor (1).
5. The reversible countersink of claim 4, wherein: the thickness of the blade (2) is the width of the cutter groove (3).
6. The reversible countersink of claim 1, wherein: the thickness of the tool bit is less than 5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122658634.4U CN216298072U (en) | 2021-11-02 | 2021-11-02 | Reversible countersink |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122658634.4U CN216298072U (en) | 2021-11-02 | 2021-11-02 | Reversible countersink |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216298072U true CN216298072U (en) | 2022-04-15 |
Family
ID=81119349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122658634.4U Active CN216298072U (en) | 2021-11-02 | 2021-11-02 | Reversible countersink |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216298072U (en) |
-
2021
- 2021-11-02 CN CN202122658634.4U patent/CN216298072U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |