CN211052559U - Boring cutter bar for boring large-diameter hole of part - Google Patents
Boring cutter bar for boring large-diameter hole of part Download PDFInfo
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- CN211052559U CN211052559U CN201922110863.5U CN201922110863U CN211052559U CN 211052559 U CN211052559 U CN 211052559U CN 201922110863 U CN201922110863 U CN 201922110863U CN 211052559 U CN211052559 U CN 211052559U
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- cutter
- hole
- boring
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- bar body
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Abstract
The utility model relates to a boring cutter bar for boring large-diameter holes of parts, which comprises a cutter bar body, wherein one end of the cutter bar body is provided with an installation shaft section, the circumference of the installation shaft section is provided with a first cutting plane for connecting with a cutter seat hole of a facing head, the other end of the cutter bar body is fixedly connected with a cutter box extending radially, the extending end of the cutter box is provided with a boring cutter installation hole, the boring cutter installation hole is a cross-shaped hole consisting of a horizontal rectangular hole and a vertical rectangular hole which are intersected, the horizontal rectangular hole is parallel to the cutter bar body, the vertical rectangular hole is positioned at the axle center of the cutter box, the cutter box is provided with a threaded hole which is vertical to the horizontal rectangular hole and the vertical rectangular hole, the threaded hole is positioned at the position where the horizontal rectangular hole and the vertical rectangular hole are intersected, a pressing bolt is matched with threads in the threaded hole for pressing the boring cutter installed in the boring cutter installation hole, the cutter box is provided with a second cutting plane which is flush with the shaft end face of the cutter bar body.
Description
Technical Field
The utility model relates to a boring processing field, in particular to boring cutter arbor in boring processing part major diameter hole.
Background
Boring refers to the further processing of forged, cast, or drilled holes that can enlarge the pore size. At present, holes of common parts are mostly processed by boring, a boring cutter for boring is fixed on a straight cutter rod, and the boring cutter is driven by the straight cutter rod to rotate so as to realize reaming. Because the range of the boring cutter extending out in the radial direction is limited, the boring cutter fixed on the straight cutter bar can not process the large-diameter hole of the part, and only other processing modes can be replaced, so that the processing procedures of the part are increased, the processing difficulty is improved, and the production period is prolonged. At present, the boring of a stepped hole is mostly finished by adopting a facing head, a straight cutter bar is fixed in a cutter seat hole of the facing head, the diameter-variable machining of a boring cutter is realized through numerical control, but the radial extension range of the boring cutter controlled by the facing head is still limited, and the condition that the stepped hole with a large diameter cannot be machined still exists. In addition, the hole wall processing and the hole shoulder end face processing of the large-diameter stepped hole are processing in two different directions, but the boring cutter fixed on the existing cutter bar can only realize processing in one direction, so that the processing difficulty of the stepped hole is increased, and the operation complexity is improved.
Disclosure of Invention
The utility model aims at prior art not enough, provide a boring cutter arbor in boring processing part big footpath hole, its boring processing that can realize part big footpath hole has reduced the processing degree of difficulty in big footpath hole, provides convenience for the processing in big footpath hole.
The technical scheme of the utility model is that: a boring cutter bar for boring large-diameter holes of parts comprises a cutter bar body, wherein one end of the cutter bar body is provided with a mounting shaft section, the circumference of the mounting shaft section is provided with a first cutting plane for connecting with a cutter holder hole of a facing head, the other end of the cutter bar body is fixedly connected with a cutter box extending in the radial direction, the extending end of the cutter box is provided with a boring cutter mounting hole, the boring cutter mounting hole is a cross-shaped hole formed by a horizontal rectangular hole and a vertical rectangular hole which are intersected, the horizontal rectangular hole is parallel to the cutter bar body, the vertical rectangular hole is positioned at the axis of the cutter box, the cutter box is provided with a threaded hole which is vertical to the horizontal rectangular hole and the vertical rectangular hole, the threaded hole is positioned at the position where the horizontal rectangular hole and the vertical rectangular hole are intersected, a compression bolt is matched with the threaded hole for compressing a boring cutter mounted in the boring cutter mounting hole, the cutter box is provided with a second cutting plane, the second tangent plane is flush with the shaft end face of the cutter bar body.
The fixed end of the knife box is provided with a semicircular groove which horizontally penetrates through the knife box, the radius of the semicircular groove is the same as that of the knife bar body, and the groove wall of the semicircular groove of the knife box is fixedly connected with the knife bar body close to the circumferential surface of the knife bar body.
The knife box is fixedly connected with the knife bar body through welding.
The tool holder body and the tool box are provided with a fabrication hole, the fabrication hole vertically penetrates through the tool holder body to be communicated with a vertical rectangular hole of the tool box boring tool mounting hole, and the diameter of the fabrication hole is larger than the length of a diagonal line of the vertical rectangular hole.
Adopt above-mentioned technical scheme: comprises a cutter bar body, one end of the cutter bar body is provided with an installation shaft section, the circumference of the installation shaft section is provided with a first tangent plane for connecting with a cutter holder hole of a facing head, the other end of the cutter bar body is fixedly connected with a cutter box extending in the radial direction, the extending end of the cutter box is provided with a boring cutter mounting hole, the boring cutter mounting hole is a cross-shaped hole consisting of a horizontal rectangular hole and a vertical rectangular hole which are intersected, the horizontal rectangular hole is parallel to the cutter bar body, the vertical rectangular hole is positioned at the axis of the cutter box, the cutter box is provided with a threaded hole vertical to the horizontal rectangular hole and the vertical rectangular hole, the threaded hole is positioned at the intersection position of the horizontal rectangular hole and the vertical rectangular hole, a pressing bolt is matched with the threaded hole in a threaded manner and is used for pressing the boring cutter arranged in the boring cutter mounting hole, the cutter box is provided with a second cutting plane which is flush with the shaft end face of the cutter bar body. During the use, insert the tool holder hole of facing head with the installation axial region of cutter arbor body and fix, the first tangent plane of installation axial region has formed the circumference spacing to the cutter arbor. And inserting the boring cutter into the boring cutter mounting hole of the cutter box, wherein the boring cutter is fixed in the vertical rectangular hole of the boring cutter mounting hole if the hole wall is machined, and the boring cutter is fixed in the horizontal rectangular hole of the boring cutter mounting hole if the hole shoulder end face is machined. After the insertion, the pressing bolt is screwed down to press the boring cutter, so that the boring cutter on the cutter bar is fixed. During machining, the workpiece is fixed on a boring machine, and after the initial position for machining the boring cutter is adjusted, the boring machine can be started to machine the large-diameter hole in the workpiece in a numerical control mode, and the large-diameter hole in the workpiece is machined simply and quickly. The tool box of the tool bar extends in the radial direction, so that the radial size of the processing is compensated, the rotating radius of the tool tip of the boring tool is increased, and the boring of the boring tool on a large-diameter hole on a part is realized. The processing difficulty of the large-diameter hole of the part is reduced, all the holes in the part can be processed by boring, the processing procedures are reduced, frequent replacement of the workpiece is avoided, and the production period of the part is shortened. In addition, the cross-shaped boring cutter mounting hole of the cutter bar realizes the clamping of the boring cutter in the vertical direction and the horizontal direction, so that the boring cutter can process the hole wall and the axial end face. The large-diameter stepped hole boring machine brings convenience to the processing of the large-diameter stepped hole, realizes the boring processing of the large-diameter stepped hole, reduces processing steps, reduces the processing difficulty of the large-diameter stepped hole, and is easier to operate.
The fixed end of the knife box is provided with a semicircular groove which horizontally penetrates through the knife box, the radius of the semicircular groove is the same as that of the knife bar body, and the groove wall of the semicircular groove of the knife box is fixedly connected with the knife bar body close to the circumferential surface of the knife bar body. The semicircular groove increases the contact area between the knife box and the knife bar body, so that the attachment degree between the knife box and the knife bar body is good, and the connection between the knife box and the knife bar body is more facilitated.
The cutter box is fixedly connected with the cutter bar body through welding, the welding fixing mode is simple and stable, and the stability of torque transmission between the cutter bar body and the cutter box is guaranteed.
The tool holder body and the tool box are provided with a fabrication hole, the fabrication hole vertically penetrates through the tool holder body to be communicated with a vertical rectangular hole of the tool box boring tool mounting hole, and the diameter of the fabrication hole is larger than the length of a diagonal line of the vertical rectangular hole. The technical hole is positioned at the axis of the knife box, and provides convenience for processing the vertical rectangular hole of the knife box.
The boring cutter bar for boring the large-diameter hole of the part is stable in structure, the boring cutter can be used for boring the large-diameter hole on the part, the machining difficulty of the large-diameter hole of the part is reduced, the machining procedures are reduced, frequent replacement of the part is avoided, and the production cycle of the part is shortened. In addition, the cross-shaped boring cutter mounting hole of the cutter bar realizes the clamping of the boring cutter in the vertical direction and the horizontal direction, and brings convenience for the processing of the large-diameter stepped hole. The boring processing of the large-diameter stepped hole is realized, the processing steps are reduced, the processing difficulty of the large-diameter stepped hole is reduced, and the processing operation is easier.
The invention is further described with reference to the drawings and the specific embodiments.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a top view of FIG. 1;
fig. 4 is a schematic structural view of the knife box.
In the attached drawing, 1 is a cutter bar body, 1-1 is an installation shaft section, 1-2 is a first tangent plane, 2 is a cutter box, 2-1 is a boring cutter installation hole, 2-2 is a horizontal rectangular hole, 2-3 is a vertical rectangular hole, 2-4 is a threaded hole, 2-5 is a second tangent plane, 2-6 is a semicircular groove, 3 is a compression bolt, and 4 is a process hole.
Detailed Description
Referring to fig. 1 to 4, the boring cutter bar for boring a large-diameter hole of a part comprises a cutter bar body 1, wherein one end of the cutter bar body 1 is provided with an installation shaft section 1-1, a first cutting plane 1-2 is arranged on the circumference of the installation shaft section 1-1 and used for being connected with a cutter holder hole of a facing head, and the first cutting plane 1-2 forms circumferential limit for the cutter bar body 1, so that torque transmission between the cutter bar and the facing head is realized. The other end of the cutter bar body 1 is fixedly connected with a cutter box 2 which extends in the radial direction, a semicircular groove 2-6 which horizontally penetrates through the cutter box 2 is arranged at the fixed end of the cutter box 2, and the radius of the semicircular groove 2-6 is the same as that of the end of the cutter bar body 1. The wall of the semicircular groove 2-6 of the knife box 2 is tightly close to the circumferential surface of the knife bar body 1 and is fixedly connected with the knife bar body 1 through welding. The semicircular grooves 2-6 increase the contact area between the knife box 2 and the knife bar body 1, so that the attachment degree between the knife box 2 and the knife bar body 1 is good, and the connection between the knife box 2 and the knife bar body 1 is more facilitated. And the welding fixing mode is simple and stable, and the stability of torque transmission between the cutter bar body 1 and the cutter box 2 is ensured. The extension end of the cutter box 2 is provided with a boring cutter mounting hole 2-1, the boring cutter mounting hole 2-1 is a cross-shaped hole formed by intersecting horizontal rectangular holes 2-2 and vertical rectangular holes 2-3, the horizontal rectangular holes 2-2 are parallel to the cutter bar body 1, and the vertical rectangular holes 2-3 are positioned at the axis of the cutter box 2. The knife box 2 is provided with a threaded hole 2-4 which is vertical to the horizontal rectangular hole 2-2 and the vertical rectangular hole 2-3, and the threaded hole 2-4 is positioned at the position where the horizontal rectangular hole 2-2 and the vertical rectangular hole 2-3 are intersected. The thread in the threaded hole 2-4 is matched with a compression bolt 3 for compressing the boring cutter arranged in the boring cutter mounting hole 2-1. The cutter box 2 is provided with a second cutting plane 2-5, the second cutting plane 2-5 is flush with the shaft end face of the cutter bar body 1, and the second cutting plane 2-5 can be used as a reference plane, so that the cutter setting of the boring cutter during processing is facilitated. The cutter bar body 1 and the cutter box 2 are provided with a fabrication hole 4, the fabrication hole 4 vertically penetrates through the cutter bar body 1 to be communicated with a vertical rectangular hole 2-3 of a boring cutter mounting hole 2-1 of the cutter box 2, and the diameter of the fabrication hole 4 is larger than the length of a diagonal line of the vertical rectangular hole 2-3. The technical hole 4 is positioned at the axis of the knife box 2, which not only facilitates the processing of the vertical rectangular hole 2-3 of the knife box 2, but also facilitates the welding between the knife bar body 1 and the knife box 2.
When the tool rest is used, the mounting shaft section 1-1 of the tool bar body 1 is inserted into a tool rest hole of the facing head and fixed, and the first tangent plane 1-2 of the mounting shaft section 1-1 forms circumferential limit to the tool bar. And the boring cutter is inserted into the boring cutter mounting hole 2-1 of the cutter box 2, if the hole wall is processed, the boring cutter is fixed in the vertical rectangular hole 2-3 of the boring cutter mounting hole 2-1, and if the hole shoulder end face is processed, the boring cutter is fixed in the horizontal rectangular hole 2-2 of the boring cutter mounting hole 2-1. After the insertion, the pressing bolt 3 is screwed down to enable the pressing bolt 3 to press the boring cutter, so that the fixing of the boring cutter on the cutter bar is completed. During machining, a workpiece is fixed on a boring machine, the initial position for machining the boring cutter is adjusted, after tool setting is completed, the boring machine can be started to machine a large-diameter hole in the workpiece in a numerical control mode, and the large-diameter hole in the workpiece is machined simply and quickly. The tool box 2 of the tool bar extends in the radial direction, so that the radial size of the processing is compensated, the rotating radius of the tool tip of the boring tool is increased, and the boring processing of the boring tool on a large-diameter hole on a part is realized. The processing difficulty of the large-diameter hole of the part is reduced, all the holes in the part can be processed by boring, the processing procedures are reduced, frequent replacement of the workpiece is avoided, and the production period of the part is shortened. In addition, the cross-shaped boring cutter mounting hole 2-1 of the cutter bar realizes the clamping of the boring cutter in the vertical direction and the horizontal direction, so that the boring cutter can process the hole wall and the axial end face. The large-diameter stepped hole boring machine brings convenience to the processing of the large-diameter stepped hole, realizes the boring processing of the large-diameter stepped hole, reduces processing steps, reduces the processing difficulty of the large-diameter stepped hole, and is easier to operate.
Claims (4)
1. The utility model provides a boring cutter arbor of boring processing part major diameter hole which characterized in that: the cutter bar comprises a cutter bar body (1), wherein one end of the cutter bar body (1) is provided with an installation shaft section (1-1), the circumference of the installation shaft section (1-1) is provided with a first tangent plane (1-2) for being connected with a cutter seat hole of a facing head, the other end of the cutter bar body (1) is fixedly connected with a cutter box (2) extending in the radial direction, the extending end of the cutter box (2) is provided with a boring cutter installation hole (2-1), the boring cutter installation hole (2-1) is a cross-shaped hole formed by a horizontal rectangular hole (2-2) and a vertical rectangular hole (2-3) which are intersected, the horizontal rectangular hole (2-2) is parallel to the cutter bar body (1), the vertical rectangular hole (2-3) is positioned at the axis center of the cutter box (2), and the cutter box (2) is provided with a hole (2-2) which is vertical to the horizontal rectangular hole (2), The tool box comprises a tool bar body (1), and is characterized in that a threaded hole (2-4) of a vertical rectangular hole (2-3), the threaded hole (2-4) is located at the position where the horizontal rectangular hole (2-2) and the vertical rectangular hole (2-3) are intersected, a compression bolt (3) is matched with a thread in the threaded hole (2-4) in a matching mode and used for compressing a boring tool installed in a boring tool installation hole (2-1), a second tangent plane (2-5) is arranged on the tool box (2), and the second tangent plane (2-5) is flush with the shaft end face of the tool bar body (1).
2. The cutter bar of the boring cutter for boring the large-diameter hole of the part according to claim 1, wherein: the fixed end of the knife box (2) is provided with a semicircular groove (2-6) which horizontally penetrates through the knife box (2), the radius of the semicircular groove (2-6) is the same as that of the knife bar body (1), and the wall of the semicircular groove (2-6) of the knife box (2) is fixedly connected with the knife bar body (1) by abutting against the circumferential surface of the knife bar body (1).
3. The cutter bar of the boring cutter for boring the large-diameter hole of the part according to claim 1, wherein: the knife box (2) is fixedly connected with the knife bar body (1) through welding.
4. The cutter bar of the boring cutter for boring the large-diameter hole of the part according to claim 1, wherein: the cutter bar body (1) and the cutter box (2) are provided with a fabrication hole (4), the fabrication hole (4) vertically penetrates through the cutter bar body (1) to be communicated with a vertical rectangular hole (2-3) of a boring cutter mounting hole (2-1) of the cutter box (2), and the diameter of the fabrication hole (4) is larger than the length of the diagonal line of the vertical rectangular hole (2-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922110863.5U CN211052559U (en) | 2019-11-30 | 2019-11-30 | Boring cutter bar for boring large-diameter hole of part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922110863.5U CN211052559U (en) | 2019-11-30 | 2019-11-30 | Boring cutter bar for boring large-diameter hole of part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211052559U true CN211052559U (en) | 2020-07-21 |
Family
ID=71589590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922110863.5U Expired - Fee Related CN211052559U (en) | 2019-11-30 | 2019-11-30 | Boring cutter bar for boring large-diameter hole of part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211052559U (en) |
-
2019
- 2019-11-30 CN CN201922110863.5U patent/CN211052559U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200721 Termination date: 20201130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |