CN217775602U - Cutter for processing inner chamfer of cavity part wall hole - Google Patents
Cutter for processing inner chamfer of cavity part wall hole Download PDFInfo
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- CN217775602U CN217775602U CN202221805269.3U CN202221805269U CN217775602U CN 217775602 U CN217775602 U CN 217775602U CN 202221805269 U CN202221805269 U CN 202221805269U CN 217775602 U CN217775602 U CN 217775602U
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Abstract
The utility model provides a processing cavity part downthehole chamfer of wall is with cutter belongs to the tooling design and makes the field. The utility model discloses combine the performance of reverse countersink and boring cutter, adopt the telescopic uide bushing, need not at cavity part internally mounted tool bit, directly just can operate in cavity part outside. The utility model discloses can realize quick installation and location, can fundamentally solve at the bottom of the downthehole chamfer machining efficiency of cavity class part wall or the problem that can not process, compare with conventional anti-countersink drill processing method, labour saving and time saving shortens the preparation time greatly, especially to the cavity part that machining operator's hand can't get into the inner chamber at all, used man-hour is 1/5 ~ 1/8 of original processing mode to greatly reduced the processing cost of this type of cavity part.
Description
Technical Field
The utility model belongs to the technical equipment design and manufacturing field relate to a processing cavity part is downthehole for chamfer cutter, are convenient for improve production efficiency.
Background
The intersection of the hole in the wall of some cavity parts and the inner wall of the cavity needs to be chamfered, and the chamfering requirement of the intersection is strict because of the assembly requirement of some products. At present, to the processing of this department chamfer, the processing mode of reverse countersink is adopted mostly, and the tool bit that will reverse countersink bore is just relatively from the cavity with the wall hole that will process before processing, stretches into the intracavity along the wall hole that needs the processing with the cutter arbor of countersink bore from the cavity outward, passes through the connected mode assembly of fast-assembling with the tool bit, outside the cavity, presss from both sides tight cutter arbor with electric hand drill or hand air gun and processes. Some cavity parts have large inner cavity space, and a processor can freely operate in the cavity by hands in the processing process. However, due to the special internal structure of some cavity parts, hands of a processor cannot touch the parts needing to be processed, the space of the inner cavity of some cavity parts is small, the hands of the processor cannot enter the inner cavity at all, and the positions of the tool bit alignment holes can be clamped only by means of tools such as pliers and the like, so that the cutter bar is extremely difficult to assemble; more space is narrow and small and pliers can not get into, and the position that needs the processing hole just can be adjusted well to the tool bit with purpose-made frock to cause production efficiency extremely low. At present, no better solution exists.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model provides a processing cavity part is downthehole for chamfer cutter combines the performance of anti-countersink and boring cutter, adopts the telescopic uide bushing, need not at cavity part internally mounted tool bit, directly just can operate in the cavity part outside.
The technical scheme of the utility model:
the utility model provides a processing cavity part wall is downthehole chamfer and is used cutter, the cutter includes two pulling handle 1, uide bushing 2, main sword 3, protective sheath 4, spring 5, base cover 6 and holding screw 7.
The main cutter 3 comprises a cutting edge part, a cutter bar part, a thread part and a tail handle part, wherein the cutting edge part is positioned at the lower end of the main cutter 3 and is L-shaped with the cutter bar part, the thread part is positioned between the cutter bar part and the tail handle part, and the main cutter 3 is clamped on the hand drill through the tail handle; the guide sleeve 2 is sleeved into the main cutter 3 from the upper part, the lower end face of the guide sleeve contacts with the cutting edge part of the main cutter 3, and a coaxial stepped hole with the bore diameter larger than that of the inner hole is formed in the inner wall of the upper end of the guide sleeve 2; the two pull handles 1 are symmetrically distributed by the center of the guide sleeve 2; the spring 5 is arranged above the main cutter 3, and the lower surface of the spring 5 is contacted with the step of the step hole of the guide sleeve 2; the inner wall and the outer wall of the base sleeve 6 are both provided with threads, the inner wall of the lower end of the base sleeve is provided with a coaxial stepped hole with the aperture larger than that of the inner hole, the base sleeve 6 is screwed to the threaded part of the main cutter 3, and the step of the stepped hole is contacted with the upper surface of the spring 5; the diameter of the inner hole of the protective sleeve 4 is larger than the outer diameter of the guide sleeve 2, the inner wall of the upper end of the protective sleeve is provided with a coaxial step hole with the diameter smaller than the inner hole of the protective sleeve, the step hole is provided with an internal thread, the inner diameter of the step hole is matched with the base sleeve 6, and the step hole and the base sleeve are connected in a threaded mode; the screw connection part of the protective sleeve 4 and the base sleeve 6 is provided with radial screw holes, when the protective sleeve 4 is rotated to be aligned with the screw holes on the side surface of the base sleeve 6, the fastening screw 7 is assembled on the protective sleeve 4 and the base sleeve 6, the end surface of the tail end of the fastening screw 7 is not higher than the inner hole of the base sleeve 6, the base sleeve 6 which is assembled with the protective sleeve 4 and the fastening screw 7 is assembled from the upper part of the main cutter 3, the fastening screw 7 is screwed, the tail end of the fastening screw is supported on the side wall of the main cutter 3, and the protective sleeve 4 and the base sleeve 6 do not rotate relative to the main cutter 3.
When the manual pneumatic drill is used, the tail handle part of the main cutter 3 is clamped by the manual pneumatic drill, the manual pneumatic drill is held by the right hand, the two thumbs and the middle finger of the left hand clamp the two pull handles 1, the two pull handles 1 are lifted, the guide sleeve 2 is driven to move upwards, the guide sleeve 2 compresses the spring 5, the cutter bar part of the main cutter 3 is exposed, the existing state is kept, the main cutter 3 is aligned with the cavity part to be processed, the cutting edge part of the main cutter 3 is enabled to completely enter the cavity part by adjusting the position, the left hand is loosened, the guide sleeve 2 is enabled to enter the cavity part to be processed, the manual pneumatic drill is stably held by the two hands, the manual pneumatic drill switch is started, the chamfering tool in the wall hole of the processing cavity part starts to rotate, the manual pneumatic drill is slowly pulled, and the chamfering tool in the wall hole of the processing cavity part starts to cut. When the chamfer in the cavity part wall hole is machined, the hand pneumatic drill switch is closed, the chamfer cutter in the cavity part wall hole stops rotating, the hand pneumatic drill is held by the right hand, the two pull handles 1 are clamped by the two thumbs and the middle finger of the left hand, the two pull handles 1 are lifted, the guide sleeve 2 is driven to move upwards, the guide sleeve 2 compresses the spring 5, the cutter bar part of the main cutter 3 is exposed, and the position is adjusted to enable the cutting edge part of the main cutter 3 to be withdrawn along the machined wall hole of the cavity part. The next hole is machined as described above.
The utility model has the advantages that:
the utility model discloses can realize quick installation and location, can fundamentally solve at the bottom of the downthehole chamfer machining efficiency of cavity class part wall or the problem that can not process, compare with conventional anti-countersink drill processing method, labour saving and time saving shortens the preparation time greatly, especially to the cavity part that machining operator's hand can't get into the inner chamber at all, used man-hour is 1/5 ~ 1/8 of original processing mode to greatly reduced the processing cost of this type of cavity part.
Drawings
FIG. 1 is a schematic view of a tool for processing a chamfer in a wall hole of a cavity part.
Fig. 2 is a diagram illustrating the structure of each part of the main blade 3.
Fig. 3 (a) and (b) are diagrams illustrating a process of entering a tool for processing a chamfer in a wall hole of a cavity part into the cavity part.
FIGS. 4 (a) and (b) are diagrams illustrating the state of the process of machining the inner chamfer of the wall hole of the cavity by using the tool for machining the inner chamfer of the wall hole of the cavity.
FIGS. 5 (a) and (b) are views showing the state of the process in which the tool for machining the inner wall hole of the cavity member and chamfering the inner wall hole is withdrawn from the cavity member.
In the figure: 1, pulling a handle; 2, a guide sleeve; 3, a main cutter; 4, protecting the sleeve; 5, a spring; 6 base sleeve; and 7, tightening the screw.
Detailed Description
The following further describes a specific embodiment of the present invention with reference to the drawings and technical solutions.
Examples
The utility model provides a processing cavity part wall is downthehole chamfer and is used cutter, the cutter includes two pulling handle 1, uide bushing 2, main sword 3, protective sheath 4, spring 5, base cover 6 and holding screw 7.
As shown in fig. 1 and 2, the main cutter 3 includes a cutting edge portion, a cutter bar portion, a threaded portion and a tail handle portion, wherein the cutting edge portion is located at the lower end of the main cutter 3 and is L-shaped with the cutter bar portion, the threaded portion is located between the cutter bar portion and the tail handle portion, and the main cutter 3 is clamped on the hand drill through the tail handle; the guide sleeve 2 is sleeved into the main cutter 3 from the upper part, the lower end face of the guide sleeve contacts with the cutting edge part of the main cutter 3, and a coaxial stepped hole with the bore diameter larger than that of the inner hole is formed in the inner wall of the upper end of the guide sleeve 2; the two pull handles 1 are symmetrically distributed by the center of the guide sleeve 2; the spring 5 is arranged above the main cutter 3, and the lower surface of the spring 5 is contacted with the bottom surface of the step hole of the guide sleeve 2; the inner wall and the outer wall of the base sleeve 6 are both provided with threads, the inner wall of the lower end of the base sleeve is provided with a coaxial stepped hole with the aperture larger than that of the inner hole, the base sleeve 6 is screwed to the threaded part of the main cutter 3, and the bottom surface of the step of the stepped hole is contacted with the upper surface of the spring 5; the diameter of the inner hole of the protective sleeve 4 is larger than the outer diameter of the guide sleeve 2, a coaxial step hole with the diameter smaller than the inner hole is formed in the inner wall of the upper end of the protective sleeve, an internal thread is formed in the step hole, the inner diameter of the step hole is matched with the base sleeve 6, and the inner diameter of the step hole and the base sleeve are connected in a threaded mode; the screw connection part of the protective sleeve 4 and the base sleeve 6 is provided with radial screw holes, when the protective sleeve 4 is rotated to be aligned with the screw holes on the side surface of the base sleeve 6, the fastening screw 7 is assembled on the protective sleeve 4 and the base sleeve 6, the end surface of the tail end of the fastening screw 7 is not higher than the inner hole of the base sleeve 6, the base sleeve 6 which is assembled with the protective sleeve 4 and the fastening screw 7 is assembled from the upper part of the main cutter 3, the fastening screw 7 is screwed, the tail end of the fastening screw is supported on the side wall of the main cutter 3, and the protective sleeve 4 and the base sleeve 6 do not rotate relative to the main cutter 3.
When the tool is used, the tail handle part of the main tool 3 is clamped by the hand pneumatic drill, the hand pneumatic drill is held by the right hand, the two pull handles 1 are clamped by the two thumbs and the middle finger of the left hand, the two pull handles 1 are lifted, the guide sleeve 2 is driven to move upwards, the guide sleeve 2 compresses the spring 5, the tool bar part of the main tool 3 is exposed, as shown in fig. 3 (a), the existing state is maintained, the main tool 3 is aligned with the wall hole to be machined of the cavity part, the position is adjusted to enable the cutting edge part of the main tool 3 to completely enter the cavity part, as shown in fig. 3 (b), the left hand is loosened, the position is adjusted to enable the guide sleeve 2 to enter the wall hole to be machined of the cavity part, as shown in fig. 4 (a), the hand pneumatic drill is stably held by the two hands, the hand pneumatic drill switch is started, the chamfering tool in the wall hole of the machining cavity part starts to rotate, the hand pneumatic drill is slowly pulled, and the chamfering tool in the wall hole of the machining cavity part starts to cut, as shown in fig. 4 (b). When the chamfer in the cavity part wall hole is machined, the hand pneumatic drill switch is closed, the chamfer cutter in the cavity part wall hole stops rotating, the hand pneumatic drill is held by the right hand, the two pull handles 1 are clamped by the two thumbs and the middle finger of the left hand, the two pull handles 1 are lifted, the guide sleeve 2 is driven to move upwards, the guide sleeve 2 compresses the spring 5, the cutter bar part of the main cutter 3 is exposed, as shown in fig. 5 (a), the position is adjusted, and the cutting edge part of the main cutter 3 is withdrawn along the machined wall hole of the cavity part, as shown in fig. 5 (b). Next, the next hole is processed as described above.
The above-mentioned embodiments only represent the embodiments of the present invention, but can not be understood as the limitation of the scope of the present invention, and it should be noted that, for those skilled in the art, a plurality of variations and improvements can be made without departing from the concept of the present invention, and all of them belong to the protection scope of the present invention.
Claims (1)
1. A cutter for processing chamfers in wall holes of cavity parts is characterized by comprising two pull handles (1), a guide sleeve (2), a main cutter (3), a protective sleeve (4), a spring (5), a base sleeve (6) and a set screw (7);
the main cutter (3) comprises a cutting edge part, a cutter bar part, a thread part and a tail handle part, wherein the cutting edge part is positioned at the lower end of the main cutter (3) and is L-shaped with the cutter bar part, the thread part is positioned between the cutter bar part and the tail handle part, and the main cutter (3) is clamped on the hand drill through the tail handle; the main cutter (3) is sleeved in the guide sleeve (2) from the upper part, the lower end face of the guide sleeve is contacted with the cutting edge part of the main cutter (3), and a coaxial stepped hole with the diameter larger than that of the inner hole is formed in the inner wall of the upper end of the guide sleeve (2); the two pull handles (1) are symmetrically distributed with the center of the guide sleeve (2); the spring (5) is arranged above the main cutter (3), and the lower surface of the spring (5) is contacted with the step of the step hole of the guide sleeve (2); the inner wall and the outer wall of the base sleeve (6) are both provided with threads, the inner wall of the lower end of the base sleeve is provided with a coaxial stepped hole with the bore diameter larger than that of the inner hole, the base sleeve (6) is screwed to the threaded part of the main cutter (3), and the step of the stepped hole is contacted with the upper surface of the spring (5); the diameter of the inner hole of the protective sleeve (4) is larger than the outer diameter of the guide sleeve (2), a coaxial step hole with the diameter smaller than the inner hole is formed in the inner wall of the upper end of the protective sleeve, an internal thread is formed in the step hole, the inner diameter of the step hole is matched with the base sleeve (6), and the inner diameter of the step hole and the base sleeve are connected in a threaded mode; the protective sleeve (4) and the base sleeve (6) are in threaded connection, radial threaded holes are formed in the positions where the protective sleeve (4) and the base sleeve (6) are in threaded connection, when the protective sleeve (4) and the base sleeve (6) are rotated to be aligned, the set screws (7) are assembled on the protective sleeve (4) and the base sleeve (6), the end faces of the tail ends of the set screws (7) are not higher than the inner holes of the base sleeve (6), the base sleeve (6) which is assembled with the protective sleeve (4) and the set screws (7) is assembled from the upper side of the main cutter (3), the set screws (7) are screwed down, the tail ends of the set screws are abutted against the side wall of the main cutter (3), and the protective sleeve (4) and the base sleeve (6) are prevented from rotating relative to the main cutter (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221805269.3U CN217775602U (en) | 2022-07-13 | 2022-07-13 | Cutter for processing inner chamfer of cavity part wall hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221805269.3U CN217775602U (en) | 2022-07-13 | 2022-07-13 | Cutter for processing inner chamfer of cavity part wall hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217775602U true CN217775602U (en) | 2022-11-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221805269.3U Active CN217775602U (en) | 2022-07-13 | 2022-07-13 | Cutter for processing inner chamfer of cavity part wall hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217775602U (en) |
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2022
- 2022-07-13 CN CN202221805269.3U patent/CN217775602U/en active Active
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