CN214290877U - Elbow boring cutter piece that floats for back chipping - Google Patents
Elbow boring cutter piece that floats for back chipping Download PDFInfo
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- CN214290877U CN214290877U CN202022513758.9U CN202022513758U CN214290877U CN 214290877 U CN214290877 U CN 214290877U CN 202022513758 U CN202022513758 U CN 202022513758U CN 214290877 U CN214290877 U CN 214290877U
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Abstract
The utility model relates to an elbow floating boring cutter block for back chipping treatment of step transition or blind hole root, which comprises a base, a positive cutter and a negative cutter which are arranged on the left side and the right side of the base through a set screw and an adjusting screw, wherein cutter heads are respectively brazed on the positive cutter and the negative cutter, elongated slots are respectively arranged on the mounting surfaces of the positive cutter and the negative cutter and the base, the set screw passes through the elongated slot to be matched with a screw hole on the base, the positive cutter and the negative cutter are adjusted to extend out of the base through the elongated slot, an adjusting screw for connecting the positive cutter and the negative cutter is arranged between the positive cutter and the negative cutter, the adjusting screw drives the positive cutter and the negative cutter to generate relative position change, a boring mode that a workpiece rotates and a drill rod does not rotate is adopted, boring is carried out on an inner hole in a floating boring manner by adjusting the rotating speed of the workpiece, the axial feed amount of the drill rod and the floating boring depth of the boring cutter, and has the advantages of simple structure, convenient operation and no change of the boring cutter body structure, the tool does not need to be changed again, and the tool is machined and formed once, so that the size and the surface quality of the root are ensured.
Description
Technical Field
The utility model belongs to the technical field of deep hole machining cutter, in particular to do the floating boring cutter piece of elbow for back chipping of back chipping processing to step transition or blind hole root.
Background
Because the requirements of a plurality of deep-hole parts on the inner diameter size and the surface roughness are strict, particularly deep-hole parts of step holes or blind holes, the root parts of the step transitions or the blind holes are often required to be subjected to back chipping treatment.
In general, a conventional universal floating boring cutter block is rectangular, can only finish boring through holes with the same inner diameter, cannot be used for finish boring stepped holes or blind holes, particularly cannot perform back gouging treatment on stepped transitions or blind hole roots, often needs to manually polish and repair back gouging by inner holes, and is difficult to guarantee size and surface quality. Therefore, the design of the elbow floating boring cutter block specially used for back chipping is very necessary.
Disclosure of Invention
The utility model aims to overcome the shortcoming of above-mentioned step hole and blind hole back chipping and provide a cutter of elbow boring cutter piece that floats for back chipping.
The technical scheme of the utility model is realized like this: the elbow floating boring cutter block for back chipping comprises a base, a positive cutter and a negative cutter which are arranged on the left side and the right side of the base through a set screw and an adjusting screw, wherein cutter heads made of hard alloy materials are respectively brazed on the positive cutter and the negative cutter, elongated slots are respectively formed in the installation surfaces of the positive cutter, the negative cutter and the base, the set screw penetrates through the elongated slots to be matched with screw holes in the base, the protruding positions of the positive cutter and the negative cutter on the base are adjusted through the elongated slots, the adjusting screw for connecting the positive cutter and the negative cutter is arranged between the positive cutter and the negative cutter, and the adjusting screw drives the positive cutter and the negative cutter to change relative positions.
The front knife and the back knife are respectively bonded with a shock pad made of rubber materials.
One end of the adjusting screw is fixed on the positive cutter or the negative cutter, the other end of the adjusting screw is connected with the threaded hole formed in the negative cutter or the positive cutter through threaded connection, and after all parts are assembled, the extending positions of the positive cutter and the negative cutter on the base are adjusted through the adjusting screw, so that after the outer diameter of the elbow floating boring cutter block is determined to meet the requirement, the size is locked and kept constant by the fastening screw.
When the tool is used, the elbow floating boring cutter block which is assembled in advance and adjusted in size is installed in the long-strip-shaped cutter groove at the front end of the cutter body, after the cutter groove end cover is tightened, four wood keys are pressed into the key groove, and finally the whole cutter body is connected to the drill rod to complete the connection of the whole tool.
The cutter head is sharpened into arc shape and slope shape according to different products.
The technical scheme of the utility model the positive effect that produces as follows: the inner hole is subjected to floating boring by adopting a boring mode that a workpiece rotates and a drill rod does not rotate and adjusting the rotating speed of the workpiece, the axial feed amount of the drill rod and the depth of a floating boring bite. According to the root positions of the step hole and the blind hole which are measured in advance, when the drill bit is close to the root parts of the step hole and the blind hole, the axial feeding amount of the drill rod is gradually reduced, when the drill bit reaches the root position, the axial feeding of the drill rod is stopped, and the push broach stays for 3 seconds to complete back chipping. The boring cutter head has the advantages of simple structure, convenience in operation and no change of the structure of the boring cutter body, and can be sharpened into various shapes such as circular arc shapes, slope shapes and the like according to different products for back chipping. The tool can be changed again, and the tool can be machined and formed once, so that the size and the surface quality of the root part are ensured.
Drawings
Fig. 1 is a front view of the assembly structure of the present invention.
Fig. 2 is a top view of the assembly structure of the present invention.
Fig. 3 is an installation diagram of the present invention.
Wherein the figures are labeled as:
1-correcting the cutter; 2, reverse cutting; 3, a base; 4-set screw; 5-adjusting the screw; 6, a cutter head;
7, a shock pad; 8, end cover; 9-boring cutter block; 10-wood bond; 11-boring cutter body; 12-a drill rod.
Detailed Description
As shown in figure 1, the elbow floating boring cutter block for back chipping comprises a base 3, a positive cutter 1 and a negative cutter 2 which are arranged on the left side and the right side of the base 3 through a set screw 4 and an adjusting screw 5, cutter heads 6 made of hard alloy materials are respectively brazed on the positive cutter 1 and the negative cutter 2, long grooves are respectively formed in the installation surfaces of the positive cutter 1 and the negative cutter 2 and the base 3, the set screw 4 penetrates through the long grooves to be matched with a screw hole in the base 3, the protruding positions of the positive cutter 1 and the negative cutter 2 on the base 3 are adjusted through the long grooves, the adjusting screw 5 for connecting the positive cutter 1 and the negative cutter 2 is arranged between the positive cutter 1 and the negative cutter 2, and the adjusting screw 5 drives the positive cutter 1 and the negative cutter 2 to change relative positions.
The positive blade 1 and the negative blade 2 are respectively bonded with a shock pad 7 made of rubber material.
One end of the adjusting screw 5 is fixed on the positive cutter 1, the other end of the adjusting screw is connected with a threaded hole formed in the reverse cutter 2 through threaded connection, after all parts are assembled, the extending positions of the positive cutter 1 and the reverse cutter 2 on the base 3 are adjusted through the adjusting screw 5, and therefore after the outer diameter of the elbow floating boring cutter block 9 meets the requirement, the elbow floating boring cutter block is locked by the fastening screw 4 to keep the size constant.
Or one end of the adjusting screw 5 is fixed on the reverse cutter 2, the other end of the adjusting screw is connected with a threaded hole formed in the positive cutter 1 through threaded connection, after all parts are assembled, the extending positions of the positive cutter 1 and the reverse cutter 2 on the base 3 are adjusted through the adjusting screw 5, and therefore after the outer diameter of the elbow floating boring cutter block 9 is determined to meet the requirements, the size is locked and kept constant through the set screw 4.
When the tool is used, the elbow floating boring cutter block 9 which is assembled in advance and adjusted in size is installed in the long-strip-shaped cutter groove at the front end of the cutter body 11, after the cutter groove end cover 8 is tightened, the four wood keys 10 are pressed into the key groove, and finally the whole cutter body 11 is connected onto the drill rod 12 to complete the connection of the whole tool. The cutter head 6 is ground into a circular arc shape and a slope shape according to different product edges.
As shown in figure 3, when in use, the elbow floating boring cutter block 9 which is assembled in advance and adjusted in size is installed in the long-strip-shaped cutter groove at the front end of the cutter body 11, after the cutter groove end cover 8 is tightened, 4 wood keys 10 are pressed into the key groove, and finally the whole cutter body 11 is connected to the drill rod 12 to complete the connection of the whole tool.
The inner hole is subjected to floating boring by adopting a boring mode that a workpiece rotates and a drill rod does not rotate and adjusting the rotating speed of the workpiece, the axial feed amount of the drill rod and the depth of a floating boring bite. According to the root positions of the step hole and the blind hole which are measured in advance, when the drill bit is close to the root parts of the step hole and the blind hole, the axial feeding amount of the drill rod is gradually reduced, when the drill bit reaches the root position, the axial feeding of the drill rod is stopped, and the push broach stays for 3 seconds to complete back chipping.
Claims (3)
1. The utility model provides a floating boring cutter block of elbow for back chipping, includes base (3), installs positive sword (1), reverse sword (2) on base (3) the left and right sides through holding screw (4), adjusting screw (5), its characterized in that: the cutter head (6) made of hard alloy materials is brazed on the positive cutter (1) and the reverse cutter (2), long grooves are respectively formed in mounting surfaces of the positive cutter (1), the reverse cutter (2) and the base (3), set screws (4) penetrate through the long grooves to be matched with screw holes in the base (3), the positive cutter (1) and the reverse cutter (2) are adjusted to extend out of the base (3) through the long grooves, adjusting screws (5) for connecting the positive cutter (1) and the reverse cutter (2) are arranged between the positive cutter (1) and the reverse cutter (2), and the adjusting screws (5) drive the positive cutter (1) and the reverse cutter (2) to change relative positions.
2. The elbow floating boring tool block for back chipping according to claim 1, wherein: damping pads (7) made of rubber materials are respectively bonded on the positive knife (1) and the negative knife (2).
3. The elbow floating boring tool block for back chipping according to claim 2, wherein: the cutter head (6) is ground into a circular arc shape and a slope shape according to different product edges.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022513758.9U CN214290877U (en) | 2020-11-04 | 2020-11-04 | Elbow boring cutter piece that floats for back chipping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022513758.9U CN214290877U (en) | 2020-11-04 | 2020-11-04 | Elbow boring cutter piece that floats for back chipping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214290877U true CN214290877U (en) | 2021-09-28 |
Family
ID=77842437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022513758.9U Active CN214290877U (en) | 2020-11-04 | 2020-11-04 | Elbow boring cutter piece that floats for back chipping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214290877U (en) |
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2020
- 2020-11-04 CN CN202022513758.9U patent/CN214290877U/en active Active
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