CN220636423U - Special cutter for down-the-hole drill bit processing - Google Patents
Special cutter for down-the-hole drill bit processing Download PDFInfo
- Publication number
- CN220636423U CN220636423U CN202321918831.8U CN202321918831U CN220636423U CN 220636423 U CN220636423 U CN 220636423U CN 202321918831 U CN202321918831 U CN 202321918831U CN 220636423 U CN220636423 U CN 220636423U
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- mounting
- blade
- cutter bar
- cutter
- notch
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- 238000009434 installation Methods 0.000 claims abstract description 24
- 238000005520 cutting process Methods 0.000 claims abstract description 20
- 238000003754 machining Methods 0.000 claims abstract description 12
- 238000003825 pressing Methods 0.000 claims description 24
- 210000001503 joint Anatomy 0.000 claims description 5
- 230000007704 transition Effects 0.000 claims description 5
- 238000003801 milling Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 239000011435 rock Substances 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
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- Drilling Tools (AREA)
Abstract
The utility model discloses a special cutter for machining a down-the-hole drill bit, which belongs to the technical field of machining tools and comprises a first cutter bar, wherein the first cutter bar comprises a connecting part and a cutting part, and the cutting part is provided with a step protruding outwards; the step is provided with a plurality of first installation parts and second installation parts, and the installation surfaces of the first installation parts and the second installation parts are respectively provided with a first blade and a second blade; the end part of the cutting part is detachably provided with a second cutter bar, and a plurality of third blades are arranged on the second cutter bar; the second cutter bar is arranged on the first cutter bar, three different blades of the first cutter blade, the second cutter blade and the second cutter bar can be simultaneously arranged on one cutter, the outer circular milling and end face milling groove processing of the down-the-hole drill bit can be completed by using the same cutter, only one clamping is selected, and the processing precision and efficiency of the down-the-hole drill bit are improved.
Description
Technical Field
The utility model belongs to the technical field of machining tools, and particularly relates to a special cutter for machining a down-the-hole drill bit.
Background
The down-the-hole drill bit is used on the down-the-hole drill bit and is widely used in the technical fields of construction engineering such as open-circuit construction and bridge construction, and when the down-the-hole drill bit is used, the down-the-hole drill bit is used for perforating rock, so that the follow-up blasting of the rock can be conveniently carried out.
Because the down-the-hole drill bit has complex structure and low production and processing efficiency, the same cutter cannot be adopted for processing, and in the specific processing process, the processing precision of separating and processing a plurality of cutters cannot meet the requirement, the product quality cannot be improved, errors can be generated during the manual operation, and the processing efficiency of the drill bit is reduced; therefore, in the production and processing, individual difference of manual operation needs to be reduced, the labor cost is saved, and the cutters are integrated into a whole, so that the processing precision, the production efficiency and the product quality are standardized and improved.
Disclosure of Invention
The utility model aims at the problems, and provides a special tool for processing a down-the-hole drill bit, which is used for solving the problems of integrating a plurality of tools together and improving the processing precision and the processing efficiency of the down-the-hole drill bit.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the special cutter for processing the down-the-hole drill bit comprises a first cutter bar, wherein the first cutter bar comprises a connecting part and a cutting part, and the cutting part is provided with a step protruding outwards; the step is provided with a plurality of first installation parts and second installation parts, and the installation surfaces of the first installation parts and the second installation parts are respectively provided with a first blade and a second blade;
the end part of the cutting part is detachably provided with a second cutter bar, and a plurality of third blades are arranged on the second cutter bar.
Compared with the prior art, the utility model has the beneficial effects that: the second cutter bar is arranged on the first cutter bar, three different blades of the first blade, the second blade and the third blade can be simultaneously arranged on one cutter, the outer round milling and end face milling groove processing of the down-the-hole drill bit can be completed by using the same cutter, only one clamping is selected, positioning of the processing cutter is reduced, and processing precision and efficiency of the down-the-hole drill bit are improved.
As a further improvement of the scheme, the step is also provided with a notch, and the notch is positioned between the first installation part and the second installation part or between the two second installation parts;
the first installation part, the second installation part and the notch are respectively arranged around the center symmetry of the axis of the first cutter arbor.
As a further improvement of the scheme, a first mounting groove communicated with the notch is formed in the mounting surface of the second mounting part, and the second blade is embedded into the first mounting groove;
the notch is also detachably provided with a pressing block for pressing the second blade.
The improved technical effects are as follows: through set up first mounting groove on the second installation department, can carry out the clamping to the second blade, the briquetting can be with the further withhold of second blade, avoids moving when cutting, and the breach of setting can dodge the bolt of installation second blade, and the notch can make things convenient for the installation and the chip removal of briquetting.
As a further improvement of the scheme, the pressing block is prismatic and matched with the notch, and the matching surfaces of the pressing block are in arc transition;
the top surface of the pressing block is provided with a notch.
The improved technical effects are as follows: by arranging the pressing block into a shape matched with the notch, the installation stability of the pressing block can be improved.
As a further improvement of the scheme, a plurality of second mounting grooves communicated with the notches are formed in the mounting surface of the first mounting part, and the first blades are detachably arranged on the second mounting grooves;
and the end face of the first installation part is also provided with an avoidance groove.
The improved technical effects are as follows: the first blade is installed on the second installation groove through the bolt, and the avoiding groove can avoid contacting with a machined workpiece when the first blade is used for cutting chips.
As a further improvement of the scheme, the first cutter bar is provided with a butt joint hole which is convenient for installing the second cutter bar, the butt joint hole is positioned at one end of the cutting part, and the end part of the first cutter bar is also provided with a fixing component which can fix the second cutter bar and the first cutter bar.
The improved technical effects are as follows: through the fixed subassembly that sets up, can install and dismantle the second cutter arbor as required, it is more convenient to install and remove, also more convenient manufacturing simultaneously.
Drawings
FIG. 1 is a schematic overall structure of the present application;
FIG. 2 is a schematic view of the structure of the direction A in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the structure of FIG. 2 in the direction B-B;
FIG. 4 is a schematic view showing a combination of a first cutter bar and a second cutter bar;
FIG. 5 is a schematic view of the structure of FIG. 4 in the direction C;
FIG. 6 is a schematic view of the mounting structure between the end of the first guide bar and the second tool bar of FIG. 2;
fig. 7 is a schematic structural diagram of the briquette.
In the figure: 10. a first cutter bar; 101. a connection portion; 102. a cutting portion; 1021. a first mounting portion; 1022. a second mounting portion; 1023. a first blade; 1024. a second blade; 1025. a first mounting groove; 1026. a second mounting groove; 1027. an avoidance groove; 103. a step; 1031. a notch; 11. a second cutter bar; 111. a third blade; 12. a butt joint hole; 13. briquetting; 131. a notch; 14. a fixing assembly; 15. extruding a nut; 16. and an elastic clamping end.
Detailed Description
In order that those skilled in the art will better understand the technical solutions, the following detailed description of the technical solutions is provided with examples and illustrations only, and should not be construed as limiting the scope of the present patent.
Referring to fig. 1-7, in one specific embodiment, a special tool for down-the-hole drill machining comprises a first tool shank 10, the first tool shank 10 comprising a connecting portion 101 and a cutting portion 102, the cutting portion 102 having an outwardly projecting step 103 thereon; the step 103 is provided with a plurality of first mounting parts 1021 and second mounting parts 1022, and the mounting surfaces of the first mounting parts 1021 and the second mounting parts 1022 are respectively provided with a first blade 1023 and a second blade 1024;
the step 103 is further provided with notches 1031, the notches 1031 are located between the first mounting portion 1021 and the second mounting portion 1022 or between the two second mounting portions 1022, as shown in fig. 5, the first mounting portion 1021 and the second mounting portion 1022 are formed by cutting the notches 1031 on the step 103, wherein the specific number of the first mounting portions 1021 is two, the specific number of the second mounting portions 1022 is 4, the second mounting portions 1022 are divided into two groups, each group is two, the mounting surfaces of the first mounting portion 1021 and the second mounting portion 1022 are specifically groove surfaces of the notches 1031, wherein the first mounting portion 1021 is provided with a first blade 1023, and the first blade 1023 is provided with a second blade 1024;
the first mounting portion 1021, the second mounting portion 1022, and the notch 1031 are respectively and centrally symmetrically arranged around the axis of the first cutter bar 10; the second cutter bar 11 can be dismantled to the tip of cutting part 102, is provided with a plurality of third blades 111 on the second cutter bar 11, through installing behind the second cutter bar 11 on first cutter bar 10, can expand the cutter on the whole first cutter bar 10, makes the cutter possess and realizes outer circle milling and end milling groove processing simultaneously to reduce multiple cutter clamping, improve machining precision and efficiency.
As shown in fig. 1 and 7, as a preferred mode of the above embodiment, a first mounting groove 1025 communicating with the notch 1031 is provided on the mounting surface of the second mounting portion 1022, the second blade 1024 is embedded in the first mounting groove 1025 and fixed by a fastening bolt, and the shape of the first mounting groove 1025 is similar to that of the second blade 1024 and can be mutually matched to improve the mounting stability of the second blade 1024;
the notch 1031 is also detachably provided with a pressing block 13 for pressing the second blade 1024; the pressing block 13 is prismatic and matched with the notch 1031, as shown in fig. 7, in this embodiment, the pressing block 13 is in a triangular prism structure, and the matching surfaces of the pressing block 13 are in arc transition, specifically, the upper and lower directions of fig. 7 are taken as references, and the edge below the pressing block 13 is in arc transition; and cooperates with the notch 1031; the top surface of the pressing block 13 is provided with a gap 131, the gap 131 is mainly used for avoiding a fastening bolt for installing the second blade 1024, the pressing block 13 is also provided with a mounting hole penetrating up and down and used for fastening the pressing block on the first cutter bar 10 by using the bolt, and the pressing block 13 is mainly used for pressing the second blade 1024 and guaranteeing the stability during cutting.
As shown in fig. 1, as a preferred mode of the above embodiment, a plurality of second mounting grooves 1026 are formed on the mounting surface of the first mounting portion 1021 and are communicated with the grooves 1031 thereof, wherein the grooves 1031 refer to the grooves 1031 on which the press block 13 is not mounted, the groove bottoms of the grooves 1031 are not arc-shaped transition, but right-angle groove bottoms, the first blades 1023 are detachably arranged on the second mounting grooves 1026, and as can be seen in fig. 1, two symmetrical groups of the first blades 1023 are arranged, and two symmetrical groups of each group are arranged;
and dodge groove 1027 is still provided with on the terminal surface of first installation department 1021, dodges groove 1027 mainly and conveniently let first blade 1023 outwards bulge a part when processing, avoid first installation department 1021 and work piece contact.
As shown in fig. 1, 2, 3 and 6, as a preferred mode of the above embodiment, the first cutter bar 10 has a butt hole 12 for installing the second cutter bar 11, the butt hole 12 is located at one end of the cutting portion 102, and the end of the first cutter bar 10 is further provided with a fixing component 14 for fixing the second cutter bar 11 and the first cutter bar 10, in this embodiment, the fixing component 14 includes an elastic clamping end 16 provided at the end of the first cutter bar 10, and a pressing nut 15 in threaded connection with the first cutter bar 10, when the pressing nut 15 is installed on the first cutter bar 10, the pressing nut 15 presses the elastic clamping end 16, so that the elastic clamping end 16 fixes the second cutter bar 11.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Specific examples are used herein to illustrate the principles and embodiments of the present patent technical solution, and the above examples are only used to help understand the method of the present patent and its core ideas. The foregoing is merely a preferred embodiment of the present patent, and it should be noted that, due to the limited text expression, there is objectively an infinite number of specific structures, and it will be apparent to those skilled in the art that several modifications, adaptations or variations can be made and the above technical features can be combined in a suitable manner without departing from the principles of the present patent; such modifications, variations, or combinations, or the direct application of the concepts and aspects of the disclosed patent to other applications without modification, are intended to be within the scope of the present disclosure.
Claims (6)
1. A special tool for down-the-hole drill bit machining, characterized by comprising a first cutter bar (10), wherein the first cutter bar (10) comprises a connecting part (101) and a cutting part (102), and the cutting part (102) is provided with a step (103) protruding outwards; a plurality of first mounting parts (1021) and second mounting parts (1022) are arranged on the step (103), and a first blade (1023) and a second blade (1024) are respectively arranged on the mounting surfaces of the first mounting parts (1021) and the second mounting parts (1022);
the end of the cutting part (102) is detachably provided with a second cutter bar (11), and a plurality of third blades (111) are arranged on the second cutter bar (11).
2. The special tool for down-the-hole drill machining according to claim 1, wherein the step (103) is further provided with a notch (1031), the notch (1031) being located between the first mounting portion (1021), the second mounting portion (1022) or between the two second mounting portions (1022);
the first mounting part (1021), the second mounting part (1022) and the notch (1031) are respectively and symmetrically arranged around the axis center of the first cutter bar (10).
3. The special tool for down-the-hole drill machining according to claim 2, wherein a first mounting groove (1025) communicating with the notch (1031) is provided on the mounting surface of the second mounting portion (1022), and the second blade (1024) is embedded in the first mounting groove (1025);
the notch (1031) is also detachably provided with a pressing block (13) for pressing the second blade (1024).
4. A special tool for down-the-hole drill machining according to claim 3, characterized in that the press block (13) is prismatic in shape which is matched with the notch (1031), and the matching surfaces are in arc transition;
the top surface of the pressing block (13) is provided with a gap (131).
5. The special tool for down-the-hole drill machining according to claim 2, wherein the mounting surface of the first mounting portion (1021) is provided with a plurality of second mounting grooves (1026) communicating with the notch (1031), and the first blade (1023) is detachably provided on the second mounting grooves (1026);
and the end surface of the first installation part (1021) is also provided with an avoidance groove (1027).
6. A special tool for drill machining according to claim 1, characterized in that the first tool bar (10) is provided with a butt joint hole (12) for facilitating the mounting of the second tool bar (11), the butt joint hole (12) is located at one end of the cutting part (102), and the end of the first tool bar (10) is further provided with a fixing assembly (14) for fixing the second tool bar (11) and the first tool bar (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321918831.8U CN220636423U (en) | 2023-07-20 | 2023-07-20 | Special cutter for down-the-hole drill bit processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321918831.8U CN220636423U (en) | 2023-07-20 | 2023-07-20 | Special cutter for down-the-hole drill bit processing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220636423U true CN220636423U (en) | 2024-03-22 |
Family
ID=90287439
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321918831.8U Active CN220636423U (en) | 2023-07-20 | 2023-07-20 | Special cutter for down-the-hole drill bit processing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220636423U (en) |
-
2023
- 2023-07-20 CN CN202321918831.8U patent/CN220636423U/en active Active
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