CN216503863U - Large-diameter reamer sharpening tool - Google Patents
Large-diameter reamer sharpening tool Download PDFInfo
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- CN216503863U CN216503863U CN202122683838.3U CN202122683838U CN216503863U CN 216503863 U CN216503863 U CN 216503863U CN 202122683838 U CN202122683838 U CN 202122683838U CN 216503863 U CN216503863 U CN 216503863U
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- diameter reamer
- reamer
- supporting platen
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Abstract
The utility model discloses a large-diameter reamer sharpening tool, which comprises a base, a supporting platen, a positioning pushing mechanism and 2 clamping mechanisms, wherein a T-shaped groove is formed in the longitudinal center of the supporting platen, the 2 clamping mechanisms are vertically supported at one end of the supporting platen at intervals, and the positioning pushing mechanism is fixed at the other end of the supporting platen. The copper sheet is coated outside the chip removal groove part of the large-diameter reamer and then the chip removal groove part is clamped and fixed in the 2 clamping mechanisms, one cutting edge of the end surface of the large-diameter reamer is close to the outer peripheral surface of a grinding wheel of a grinding machine, and one end of the positioning pushing mechanism abuts against a central hole in the bottom of the handle part of the large-diameter reamer. The utility model obviously improves the sharpening quality and the sharpening efficiency of three cutting edges and prolongs the service life of the large-diameter reamer.
Description
Technical Field
The utility model relates to a tool for sharpening a cutting tool, in particular to a tool for sharpening a cutting edge of a reamer with a large diameter (the diameter is phi 30mm or more). Belongs to the technical field of metal cutting processing.
Background
The reamer is a common cutter in the cutting process, and the cutting edge of the reamer is worn after long-term use, so that the reamer can be continuously used after the cutting edge is polished by a grinder. The sharpening quality of the cutting edge directly determines the reaming quality of the reamer and also determines the service life of the reamer. The end face of the reamer is usually provided with three cutting edges which form an angle of 120 degrees with each other, the grinding operation difficulty of the cutting edges of the reamer with large diameter and length larger than 300mm is large, the three cutting edges are difficult to grind to the same cutting conical surface, the three cutting edges can be ground on the same cutting conical surface only by repeatedly grinding for many times with higher operation level, and the good cutting effect is achieved. The sharpening process is time-consuming and labor-consuming, and has poor sharpening quality and low efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a large-diameter reamer sharpening tool which is simple in structure, convenient to install and capable of remarkably improving sharpening quality.
The utility model is realized by the following technical scheme:
a large-diameter reamer sharpening tool comprises a base, a supporting platen, a positioning pushing mechanism and 2 clamping mechanisms, wherein the base comprises a profile steel support and a plurality of lining plates, the profile steel support is supported on the ground, and the lining plates are fixed on the top surface of the profile steel support at intervals; the lower side of the supporting bedplate is supported on the top surface of the profile steel bracket through a plurality of lining plates; the 2 clamping mechanisms are vertically supported on one end of the supporting platen close to the grinder at intervals, and the positioning pushing mechanism is fixed on one end of the supporting platen far away from the grinder; the outer peripheral surface of a chip removal groove part of the large-diameter reamer is coated with copper sheets and then clamped and fixed in 2 clamping mechanisms, one cutting edge of the end surface of the large-diameter reamer is close to the outer peripheral surface of a grinding wheel of a grinding machine, and one end of a positioning pushing mechanism abuts against a central hole in the bottom of the handle part of the large-diameter reamer.
The object of the utility model can be further achieved by the following technical measures:
furthermore, the positioning pushing mechanism comprises a support and an adjustable tip, two ends of the lower portion of the support are fixed to one end, far away from the grinding machine, of the supporting platen through fastening screws respectively, the conical tip at one end of the adjustable tip abuts against a center hole in the bottom of the taper shank at the other end of the large-diameter expanding drill, a screw rod in the middle of the adjustable tip is in threaded connection with the upper portion of the support, and a rotating handle is arranged at the other end of the adjustable tip. And the outer peripheral surface of the cylinder at one end of the adjustable tip is provided with axial scales.
Furthermore, the clamping mechanism comprises an outer hexagonal support ring, 3T-shaped blocks and 3 fastening screw nut groups, wherein one ends of the T-shaped blocks are uniformly distributed and fixed on the centers of three spaced outer side surfaces on the outer side of the outer hexagonal support ring; the fastening screw nut group is uniformly distributed and fixed on the centers of the other three spaced outer side surfaces of the outer hexagonal support ring respectively, the screw end heads of the screw nut group are supported against the outer peripheral surface of the copper sheet of the chip removal groove part of the coated large-diameter reamer respectively, and the chip removal groove part of the large-diameter reamer is fixed in the 2 clamping mechanisms arranged at intervals.
Furthermore, a plurality of groups of support threaded holes are arranged in the middle of the longitudinal two sides of the supporting platen at intervals, 4 support threaded holes in each group are divided into 2 support threaded holes which are respectively located on two sides of the T-shaped groove, the positions of the support threaded holes respectively correspond to the positions of the through holes at the two ends of the support, and support screws respectively vertically penetrate through the through holes at the two ends of the support and are screwed into the corresponding threaded holes, so that the support is fixed at the other end of the supporting platen.
Furthermore, lifting threaded holes are respectively formed in the end heads of the lining plates at the two ends of the section steel support, lifting screws of the supporting platen are screwed into the lifting threaded holes from bottom to top, the tops of the lifting screws of the supporting platen are respectively supported on four corners of the lower side surface of the supporting platen, and the lifting screws of the supporting platen are locked through lifting nuts.
The clamping mechanism clamps the large-diameter reamer positioned in the outer hexagonal support ring by respectively penetrating through the end heads of the 3 fastening screw nut groups on the corresponding sides of the outer hexagonal support ring, so that the axial position of the large-diameter reamer is convenient to adjust, and the centering performance of the large-diameter reamer is improved. The T-shaped blocks are respectively fixed on the middle points of the corresponding edges of the outer hexagonal support ring, so that the large-diameter reamer can be sequentially ground after being overturned by 120 degrees around the axis of the large-diameter reamer after the first cutting edge is sharpened, the angles of the three sharpened cutting edges are kept consistent, and the cutting edges are positioned on the same cutting plane during cutting. The adjustable center of the positioning pushing mechanism can push the large-diameter reamer to move axially, and the grinding amount of the cutting edge can be controlled through the axial scale on the outer peripheral surface of one end of the adjustable center. The sharpening quality and the sharpening efficiency of the three cutting edges are obviously improved, and the service life of the large-diameter reamer is prolonged.
Advantages and features of the present invention will be illustrated and explained by the following non-restrictive description of preferred embodiments thereof, given by way of example only with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a large diameter reamer sharpening tool of the present invention;
fig. 2 is an enlarged sectional view a-a of fig. 1.
Detailed Description
The utility model is further illustrated by the following figures and examples.
In the description of the utility model, terms indicating orientation, position and order, such as "upper", "lower", "left", "right", and the like, are based on the orientation shown in the drawings or are used for simplicity of description only, and do not indicate or imply that the utility model must have a specific orientation, position and order.
As shown in fig. 1 and 2, the large-diameter reamer sharpening tool of the present embodiment includes a base 1, a supporting platen 2, a positioning pushing mechanism 3, and 2 clamping mechanisms 4, where the base 1 includes a section steel support 11 and a plurality of lining plates 12, and the section steel support 11 of the present embodiment is formed by welding channel steel and is supported on the ground. The lining plates 12 are welded and fixed on the top surface of the section steel support 11 at intervals, and the top surfaces of a plurality of lining plates 12 are machined once and can be used as the installation reference of the supporting bedplate 2. The longitudinal center of the supporting bedplate 2 is provided with a T-shaped groove 21, and the lower side of the supporting bedplate 2 is fixed on the top surface of the section steel bracket 11 through a plurality of lining plates 12.
The positioning pushing mechanism 3 is fixed on the right end of the supporting platen 2 far away from the grinder 10 and comprises a support 31 and an adjustable tip 32, two ends of the lower portion of the support 31 are respectively fixed on the right end of the supporting platen 2 far away from the grinder 10 through fastening screws 33, a screw 321 in the middle of the adjustable tip 32 is in threaded connection with the upper portion of the support 31, a rotating handle 322 is arranged at the right end of the adjustable tip 32, and the adjustable tip 32 is rotated to enable a conical tip 324 at the end of the left end of the adjustable tip 32 to abut against a central hole 201 in the bottom of a taper shank at the right end of the large-diameter reamer 20. The outer circumferential surface of the cylinder at the left end of the adjustable tip 32 is provided with an axial scale 323, which is convenient for controlling the grinding amount of the cutting edge 202 of the large-diameter reamer.
The 2 clamping mechanisms 4 are vertically supported at intervals on the left end of the supporting platen 2 close to the grinder 10 shown in fig. 1, the outer peripheral surface of the large-diameter reamer chip discharge groove portion 202 is covered with the copper sheet 30 and then clamped and fixed in the 2 clamping mechanisms 4, and one cutting edge 203 of the end surface of the large-diameter reamer 20 is close to the outer peripheral surface of the grinding wheel 101 of the grinder. The clamping mechanism 4 comprises an outer hexagonal support ring 41, 3T-shaped blocks 42 and 3 fastening screw and nut sets 43, wherein one ends of the T-shaped blocks 42 are uniformly distributed and fixed on the centers of three spaced outer side surfaces on the outer side of the outer hexagonal support ring 41. The fastening screw and nut groups 43 are uniformly distributed and fixed on the centers of the other three spaced outer side surfaces of the outer hexagonal support ring 41, and the ends of the screws 431 of the screw and nut groups 43 respectively abut against the outer peripheral surface of the copper sheet 30 covering the chip groove part of the large-diameter reamer 20, so that the large-diameter reamer chip groove part 202 is fixed in the 2 clamping mechanisms 4 arranged at intervals.
4 groups of support threaded holes 22 are arranged on two longitudinal sides of the middle of the supporting bedplate 2 at intervals, 4 support threaded holes 22 in each group are divided into 2 rows and are respectively located on two sides of the T-shaped groove 21, the positions of the support threaded holes 22 respectively correspond to the positions of through holes 311 at two ends of the support 31, support screws 33 respectively vertically penetrate through the through holes 311 at two ends of the support and are screwed into the corresponding threaded holes 22, so that the support 31 is fixed on the right end of the supporting bedplate 2, and the threaded holes 22 at the corresponding positions can be selected according to different lengths of the large-diameter expanding drills 20. The universality of the utility model is improved.
Lifting threaded holes 13 are respectively formed in the ends of the lining plates 12 at the two ends of the section steel support 11, the supporting platen lifting screws 5 are screwed into the lifting threaded holes 13 from bottom to top, the tops of the supporting platen lifting screws 5 are respectively supported on the four corners of the lower side surface of the supporting platen 2, and the supporting platen lifting screws 5 are locked through lifting nuts 6. The center height of the large-diameter reamer 20 can be adjusted to be consistent with the center height of the grinding wheel 101, and the grinding quality of the cutting edge 203 can be improved.
The sharpening process using the large-diameter reamer sharpening tool is as follows:
1) assembling the clamping mechanism 4, firstly, one end of the T-shaped block 42 is respectively embedded into the notches 411 at the centers of the three spaced outer side planes of the outer hexagonal support ring 41, and the T-shaped block 42 is respectively fixed on the centers of the three spaced outer side planes of the outer hexagonal support ring 41 through 2T-shaped block fastening screws 421 penetrating through the T-shaped block 42, and 3T-shaped blocks 42 are in central symmetry with the axis of the inner hole of the outer hexagonal support ring 41, so that the outer hexagonal support ring 41 can be inserted into the T-shaped groove 21 after rotating 120 degrees around the axis of the outer hexagonal support ring 41. And then, the screw nut groups 43 are respectively fixed on the centers of the other three spaced outer side surfaces of the outer hexagonal support ring 41, so that the assembly of the clamping mechanism 4 is completed.
2) The large-diameter reamer 20 is arranged in the two clamping mechanisms 4, the outer peripheral surface of the large-diameter reamer chip removal groove portion 202 needing sharpening is coated with the copper sheet 30 and then penetrates through the centers of the two clamping mechanisms 4, and then the screws 431 of the screw nut group 43 are respectively screwed, so that the ends of the screws 431 are respectively abutted against the outer peripheral surface of the copper sheet 30 coating the large-diameter reamer chip removal groove portion 202. The length of the screw 431 extending into the outer hexagonal support ring 41 is adjusted respectively, so that the axis of the large-diameter reamer 20 is matched with the axis of the inner hole of the outer hexagonal support ring 41, and finally the nut 432 is locked respectively.
3) The large-diameter reamer 20, the two clamping mechanisms 4 and the positioning pushing mechanism 3 are respectively installed on the base 1, the bottoms of the T-shaped blocks 41 on which the lower parts of the two clamping mechanisms 4 of the large-diameter reamer 20 are installed are respectively inserted into the T-shaped groove 21 in the longitudinal center of the supporting bedplate 2, the two clamping mechanisms 4 and the large-diameter reamer 20 are moved to the left end of the supporting bedplate 2, and then the bottom of the support 31 of the positioning pushing mechanism 3 is respectively fixed on the right end of the supporting bedplate 2 through the support screw 33. The rotating handle 322 at the right end of the adjustable tip 32 is rotated, and the conical tip 324 at the left end of the adjustable tip 32 is moved to the left to abut against the central hole 201 at the bottom of the taper shank at the right end of the large-diameter reamer 20. Then the supporting bedplate 2 together with the two clamping mechanisms 4, the large-diameter reamer 20 and the positioning pushing mechanism 3 thereon is hoisted to the base 1, and then 10 connecting screws 7 are respectively screwed into two sides of the lining plate 12 through two sides of the supporting bedplate 2 to fix the supporting bedplate 2 on the base 1.
4) Adjusting the relative position of the center of a cutting edge 203 of the end face of the cutting part of the large-diameter reamer 20 and the center of the grinding wheel 101, loosening the plurality of connecting screws 7, and then screwing the supporting platen lifting screws 5 below the four corners of the supporting platen 2 in sequence to lift the supporting platen up and down, thereby adjusting the center height of the large-diameter reamer 20 clamped in the two clamping mechanisms 4 to be matched with the center height of the grinding wheel 101. Finally, the plurality of connecting screws 7 are respectively screwed down, and the lifting nuts 6 on the four corners of the lower side surface of the supporting platen 2 are screwed down.
5) Grinding one cutting edge 203 of the cutting part of the large-diameter reamer 20, loosening the screw nut group 43 at the upper end of the outer hexagonal support ring 41, then rotating the rotating handle 322 at the right end of the adjustable tip 32 clockwise to push the large-diameter reamer 20 smoothly toward the grinding wheel 101 for grinding, and reading the moving amount of the axial scale 323 on the outer peripheral surface of the left end of the adjustable tip 32 to confirm the grinding amount of the one cutting edge 203.
6) And finishing the grinding of the other two cutting edges 203 of the cutting part of the large-diameter reamer 20, rotating a rotating handle 322 at the right end of the adjustable tip 32 anticlockwise, and withdrawing a conical tip 324 at the left end of the adjustable tip 32 from the central hole 201 at the bottom of the taper shank at the right end of the large-diameter reamer 20. Then the support 31 of the positioning and pushing mechanism 3 is detached, the T-shaped blocks 42 on the lower sides of the two outer hexagonal support rings 41 are respectively removed from the T-shaped groove 21 in the longitudinal center of the supporting platen 2, then the outer hexagonal support rings 41 are turned by 120 degrees around the axis of the large-diameter reamer 20, and the T-shaped blocks 42 on the lower sides of the outer hexagonal support rings 41 are pushed into the T-shaped groove 21 in the longitudinal center of the supporting platen 2. And repeating the processes from the step 3) to the step 5) for two more times, thereby finishing the grinding of the other two cutting edges of the cutting part of the large-diameter reamer 20 in sequence.
In addition to the above embodiments, the present invention may have other embodiments, and any technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of the claims of the present invention.
Claims (6)
1. The utility model provides a major diameter reamer sharpening frock which characterized in that: the clamp comprises a base, a supporting platen, a positioning pushing mechanism and 2 clamping mechanisms, wherein the base comprises a profile steel support and a plurality of lining plates, the profile steel support is supported on the ground, and the lining plates are fixed on the top surface of the profile steel support at intervals; the lower side of the supporting bedplate is supported on the top surface of the profile steel bracket through a plurality of lining plates; the 2 clamping mechanisms are vertically supported on one end of the supporting platen close to the grinder at intervals, and the positioning pushing mechanism is fixed on one end of the supporting platen far away from the grinder; the outer peripheral surface of a chip removal groove part of the large-diameter reamer is coated with copper sheets and then clamped and fixed in 2 clamping mechanisms, one cutting edge of the end surface of the large-diameter reamer is close to the outer peripheral surface of a grinding wheel of a grinding machine, and one end of a positioning pushing mechanism abuts against a central hole in the bottom of the handle part of the large-diameter reamer.
2. The large diameter reamer sharpening tool of claim 1, wherein: the positioning pushing mechanism comprises a support and an adjustable tip, two ends of the lower portion of the support are fixed to one end, away from the grinding machine, of the supporting platen through fastening screws respectively, the conical tip of one end of the adjustable tip abuts against a center hole in the bottom of a taper shank at the other end of the large-diameter reamer, a screw rod in the middle of the adjustable tip is in threaded connection with the upper portion of the support, and a rotating handle is arranged at the other end of the adjustable tip.
3. The large diameter reamer sharpening tool of claim 1, wherein: the clamping mechanism comprises an outer hexagonal support ring, 3T-shaped blocks and 3 fastening screw nut groups, wherein one ends of the T-shaped blocks are uniformly distributed and fixed on the centers of three spaced outer side surfaces on the outer side of the outer hexagonal support ring; the fastening screw nut group is uniformly distributed and fixed on the centers of the other three spaced outer side surfaces of the outer hexagonal support ring respectively, the screw end heads of the screw nut group are supported against the outer peripheral surface of the copper sheet of the chip removal groove part of the coated large-diameter reamer respectively, and the chip removal groove part of the large-diameter reamer is fixed in the 2 clamping mechanisms arranged at intervals.
4. The large diameter reamer sharpening tool of claim 2, wherein: and the outer peripheral surface of the cylinder at one end of the adjustable tip is provided with axial scales.
5. The large diameter reamer sharpening tool of claim 1, wherein: the support platen has set up array support screw hole in the vertical both sides interval in middle part, and 4 support screw holes of every group divide into 2 one lines and are located T type groove both sides respectively, and support screw hole position corresponds with the through-hole position at support both ends respectively, and support screw passes the through-hole at support both ends respectively perpendicularly and twists in the screw hole that corresponds to fix the support on the other end of support platen.
6. The large diameter reamer sharpening tool of claim 1, wherein: lifting threaded holes are respectively formed in the end heads of the lining plates at the two ends of the section steel support, lifting screws of the supporting platen are screwed into the lifting threaded holes from bottom to top, the tops of the lifting screws of the supporting platen are respectively supported on four corners of the lower side surface of the supporting platen, and the lifting screws of the supporting platen are locked through lifting nuts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122683838.3U CN216503863U (en) | 2021-11-04 | 2021-11-04 | Large-diameter reamer sharpening tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122683838.3U CN216503863U (en) | 2021-11-04 | 2021-11-04 | Large-diameter reamer sharpening tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216503863U true CN216503863U (en) | 2022-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122683838.3U Active CN216503863U (en) | 2021-11-04 | 2021-11-04 | Large-diameter reamer sharpening tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216503863U (en) |
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2021
- 2021-11-04 CN CN202122683838.3U patent/CN216503863U/en active Active
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