CN219093824U - Assembled alloy chamfer tooth modularization keyway broach - Google Patents
Assembled alloy chamfer tooth modularization keyway broach Download PDFInfo
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- CN219093824U CN219093824U CN202220783504.5U CN202220783504U CN219093824U CN 219093824 U CN219093824 U CN 219093824U CN 202220783504 U CN202220783504 U CN 202220783504U CN 219093824 U CN219093824 U CN 219093824U
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
The utility model relates to an assembled alloy chamfer tooth modularized key slot broach, which comprises a broach body and a chamfer tooth module, wherein the broach body is provided with a plurality of grooves; the broach body comprises a cutter body and a mounting groove, and the mounting groove is positioned at the rear upper part of the cutter body; the chamfering tooth module is detachably arranged in an installation groove at the rear part of the broach body through a fixing assembly. The beneficial effects achieved by the utility model are as follows: the problem of the unmatched durability of rectangle sword tooth and chamfer tooth is solved, the overall durability of broach sword tooth improves, avoids the loss that frequent broach of changing caused to enable the broach to be applied to the work piece that aperture, keyway degree of depth are different, practice thrift the cost.
Description
Technical Field
The utility model relates to a machining technical field, concretely relates to assembled alloy chamfer tooth modularization keyway broach.
Background
The existing broach is of an integral structure, namely: the chamfering teeth and the broach main body are integrated, and when the chamfering teeth are worn, the whole broach is scrapped, so that great loss is caused.
In addition, for processing workpieces with different apertures and key slot depths, the prior art needs to prepare a plurality of broaches with different models and different processing sizes. But prepares a large number of broaches with different models, has high preparation cost and is inconvenient to store.
Therefore, the modular key slot broach with the assembled alloy chamfer teeth is designed, the durability of the cutter teeth can be improved, the overall service life of the broach is prolonged, and different workpieces to be machined with different apertures and key slot depths can be conveniently adapted.
Disclosure of Invention
The utility model aims to overcome the defects of the prior art, and provides an assembled alloy chamfer tooth modularized key slot broach which can generally improve the durability of cutter teeth, prolong the overall service life of the broach, avoid economic loss caused by frequent replacement of the broach, and can be applied to processing workpieces with different aperture and key slot depths, thereby saving economic cost.
The aim of the utility model is achieved by the following technical scheme:
the modular key slot broach for the fabricated alloy chamfering teeth comprises a broach body and a chamfering tooth module;
the broach body comprises a cutter body and a mounting groove, and the mounting groove is positioned at the rear upper part of the cutter body;
the chamfering tooth module is detachably arranged in an installation groove at the rear part of the broach body through the fixing assembly.
Further, the mounting groove is a through groove extending leftwards and rightwards;
the width value of the chamfer tooth module is 0.2-0.3 mm smaller than the width value of the bottom of the mounting groove;
after the installation is completed, the symmetry degree of the two side surfaces of the broach body relative to the chamfer tooth module is less than 0.05mm.
Further, the fixing component is a bolt;
the mounting groove is provided with at least two through holes, and the chamfer tooth module is provided with a threaded hole corresponding to the through holes;
the chamfer tooth module is locked and installed on the broach body through the through hole and the threaded hole by the bolt;
the bottom of the broach body is provided with a counter bore corresponding to the through hole;
the length of the chamfering tooth module is matched with the length of the mounting groove.
Further, the assembled alloy chamfering tooth modularized keyway broach further comprises a gasket which can be installed between the chamfering tooth module and the installation groove;
the gasket is provided with a mounting hole corresponding to the through hole.
Further, the modular key slot broach for the fabricated alloy chamfering tooth further comprises a positioning key, the bottom of the mounting groove is also provided with a positioning groove matched with the positioning key, and the chamfering tooth module is provided with a butt joint groove corresponding to the positioning groove;
the width dimension of the positioning key is matched with the positioning groove and the butt joint groove to transversely limit the chamfering tooth module, and the height value from the bottom of the positioning groove to the top of the butt joint groove is larger than the height dimension of the positioning key.
Further, a square hole matched with the positioning key is also formed in the middle of the gasket.
Further, the gaskets are parallel thin plates, and the width of the gaskets is smaller than that of the chamfering tooth modules.
Further, the chamfering tooth module comprises a chamfering tooth module body and a plurality of chamfering tooth alloy blades welded on the chamfering tooth module body;
and the chamfering tooth module is provided with a plurality of welding grooves, and the rear ends of the welding grooves are higher than the front ends.
The utility model has the following advantages: (1) The whole chamfering tooth is easier to wear compared with a broached rectangular broaching tooth, the chamfering tooth module is detachably fixed on the broach body through the fixing component, and then after the chamfering tooth alloy blade on the chamfering tooth module is worn, the chamfering tooth module is only required to be replaced with a new chamfering tooth module, or if the rectangular broaching tooth is worn, the chamfering tooth module can be detached and installed on the broach with smaller rectangular broaching tooth wear, compared with the prior art, the scrapping of the whole broach due to the abrasion of the chamfering tooth module is avoided, and the economic cost is saved;
(2) In order to ensure the practicability of the chamfering tooth module, avoid the chamfering tooth module from shifting, stretch out of the broach body and damage the workpiece and equipment, the chamfering tooth module must be ensured to be accurately installed in the installation groove, so that whether the installation position of the chamfering tooth module shifts or not is required to be checked before use, the width of the cutter section is strictly controlled to be 0.2-0.3 mm smaller than that of the cutter body, and the cutter section is placed on a platform by taking the side surface of the cutter body as a reference during assembly, and symmetry is ensured to be within 0.05mm by using a dial indicator;
(3) The mode that the mounting groove was ground down or is added the gasket can be adopted to this scheme to the different work pieces of aperture, keyway degree of depth to adjust for the application of the keyway broach of this scheme is more extensive.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic illustration of a pad of the present utility model;
FIG. 3 is a schematic view of a positioning key structure according to the present utility model;
FIG. 4 is a schematic view of the structure of the mounting groove according to embodiment 1 of the present utility model;
FIG. 5 is a schematic view of a chamfer tooth module according to embodiment 1 of the present utility model;
FIG. 6 is a schematic side view of the chamfer tooth module of the present utility model mounted on a broach body;
FIG. 7 is a schematic view of the structure of embodiment 2 of the present utility model without gasket;
FIG. 8 is a schematic diagram of the gasket construction of embodiment 2 of the present utility model;
FIG. 9 is a schematic view of a safety structure according to embodiment 2 of the present utility model;
FIG. 10 is a schematic view of a gasket according to embodiment 2 of the present utility model;
FIG. 11 is a schematic view of a limiting groove according to embodiment 2 of the present utility model;
FIG. 12 is an enlarged schematic view of a safety structure according to embodiment 2 of the present utility model;
in the drawing, a 1-broach body, a 2-chamfer tooth module, a 3-chamfer tooth alloy blade, a 4-safety screw, a 5-bolt, a 6-gasket, a 7-high hardness sleeve, an 8-positioning key, a 101-cutter body, a 102-mounting groove, 1021-through holes, 1022-counter bores, 1023-limiting grooves, 1024-second through holes, 201-threaded holes, 202-chamfer tooth module bodies, 203-second threaded holes, 206-butt joint grooves, 602-thickened parts, 603-holes and 606-positioning grooves.
Detailed Description
The present utility model will be further described with reference to the accompanying drawings, but the scope of the present utility model is not limited to the following.
Example 1
As shown in fig. 1 to 6, the assembled alloy chamfer tooth modularized keyway broach has a square structure as a whole and comprises a broach body 1, a chamfer tooth module 2 and two fixing components for fixing the broach body 1 and the chamfer tooth module 2; the broach body 1 is provided with a broach body 101, the broach body 101 is rectangular, so that the broach moves in the guide sleeve during use, a plurality of rectangular broaching teeth are arranged on the broach body 101, the upper surface of the chamfering tooth module 2 is provided with a chamfering tooth alloy blade 3, and when a workpiece is processed, after the rectangular broaching teeth broach out of a key slot, the chamfering tooth alloy blade 3 chamfering the key slot.
The existing broach is of an integral structure, namely, the chamfering teeth and the broach main body are integrated; when the chamfering teeth are worn, the whole broach is scrapped, and in the processing process, the chamfering teeth are easy to wear, so that great loss is caused; in this scheme, chamfer tooth module 2 detachable equipment is on broach body 1, after chamfer tooth alloy blade 3 appears wearing and tearing, change chamfer tooth module 2 can, or, if the rectangle broach tooth has worn and tearing, i.e. the cutter body 101 of rectangle form has worn and tearing, also can dismantle chamfer tooth module 2, install on the broach that rectangle broach tooth wearing and tearing are less, thereby but reuse broach body 1 and chamfer tooth module 2, make broach body and module exert extremely, greatly reduced the economic loss that the tool loss leads to, and, when carrying out different work piece processing, also can carry out the combination with broach body 1 with chamfer tooth module 2 of different models and use.
Meanwhile, as shown in fig. 1 and 6, the chamfer tooth module 2 is installed in the installation groove 102 through a fixing component, the width value of the chamfer tooth module 2 is smaller than that of the installation groove 102 by 0.2-0.3 mm, after the installation is completed, the chamfer tooth module 2 is positioned in the middle of the installation groove 102 and is placed on a platform with the two side faces of the broach body 1 as the reference, and the symmetry degree of the chamfer tooth module 2 is within 0.05mm by using a dial indicator. The design has the advantages that: when the chamfering tooth module 2 is assembled, the precision control can be facilitated, and the chamfering tooth module 2 is ensured to be more accurately installed on the broach body 1; moreover, more importantly, by the distance difference between the side surface of the chamfering tooth module 2 and the side surface of the broach body 1, whether the fixing component is loosened and deformed or not and whether the chamfering tooth module 2 is deviated or not can be conveniently and rapidly judged.
Preferably, in this embodiment, the chamfer tooth module 2 has a width that is 0.2mm less than the width of the bottom of the mounting groove 102.
Further, the fixing assembly comprises two bolts 5, the mounting groove 102 is provided with two through holes 1021, and the chamfer tooth module 2 is provided with threaded holes 201 corresponding to the through holes 1021; the chamfer tooth module 2 is locked and installed on the broach body 1 through the through hole 1021 and the threaded hole 201 by the bolt 5; the bottom of the broach body 1 is provided with a counter bore 1022 corresponding to the bottom of the through hole 1021, and the length of the chamfering tooth module 2 is matched with the length of the groove of the mounting groove 102. In this scheme, bolt 5 is the counter bore bolt, makes the screw hole on the chamfer tooth module 2, makes the through-hole on the broach body 1 to and the design of broach body 1 bottom surface side processing counter bore can be convenient for the equipment assembly of each part, simultaneously, the bolt head of bolt 5 can bury in broach body 1, and then can avoid the bolt head to rise broach body 1 and produce when processing and interfere.
In this embodiment, to the work piece that aperture, keyway degree of depth are different, this scheme can be adopted to grind low mounting groove 102, perhaps adds the mode of gasket and adjusts for the application of the keyway broach of this scheme is more extensive.
Preferably, in a specific manner of adding the gasket, as shown in fig. 2, the gasket 6 is installed between the chamfer tooth module 2 and the bottom of the installation groove 102 in parallel, and the gasket 6 is provided with an installation hole corresponding to the through hole 1021 so as to be screwed and fixed on the two bolts 5.
After the installation, the chamfer tooth module 2 can be completely covered and pressed against the side edge of the gasket 6.
Preferably, the thickness of the spacer 6 does not exceed 0.5mm, in this case 0.3mm.
Still further, the chamfer tooth module 2 includes a chamfer tooth module body 202 and a plurality of chamfer tooth alloy blades 3 welded to the chamfer tooth module body 202; the chamfer tooth module body 202 is provided with a plurality of welding grooves 204 for welding the chamfer tooth alloy blade 3, and the rear end of the welding groove 204 is higher than the front end.
As shown in fig. 3, in this solution, the modular key slot broach with the fabricated alloy chamfer teeth further includes a positioning key 8, a positioning groove 606 matched with the positioning key 8 is provided at the bottom of the mounting groove 102, and a docking groove 206 is provided in the chamfer tooth module 2 corresponding to the positioning groove 606; the width dimension of the positioning key 8 is matched with the positioning groove 606 and the butting groove 206 so as to be convenient for transversely limiting the chamfer tooth module 2, and the installation position of the chamfer tooth module 2 is prevented from being offset, and the height value from the bottom of the positioning groove 606 to the top of the butting groove 206 is larger than the height dimension of the positioning key 8.
Meanwhile, a square hole matched with the positioning key 8 is further formed in the middle of the gasket 6, so that the positioning key 8 is clamped while the gasket 6 is conveniently added.
When the scheme is implemented, broaching of the modular key slot broach with the assembled alloy chamfer teeth only needs one main motion, and feeding motion is completed by the tooth lift of the broach.
It should be noted that, the drawings of the present solution are only simple schematic structural diagrams, and the structural changes without departing from the concept of the present solution are all within the protection scope of the present solution.
Example 2
As shown in fig. 6 to 12, the assembled alloy chamfer tooth modularized keyway broach has a square structure as a whole and comprises a broach body 1, a chamfer tooth module 2 and two fixing components for fixing the broach body 1 and the chamfer tooth module 2; the broach body 1 front end is equipped with cutter body 101, and cutter body 101 is rectangular form to the broach removes in the guide pin bushing during the use, is equipped with a plurality of rectangle broaching teeth on the cutter body 101, and chamfer tooth module 2 upper surface is equipped with chamfer tooth alloy blade 3, and when processing the work piece, the chamfer tooth alloy blade 3 chamfer the keyway after the keyway is broached to the rectangle broaching tooth.
The existing broach is of an integral structure, namely, the chamfering teeth and the broach main body are integrated; when the chamfering teeth are worn, the whole broach is scrapped, and in the processing process, the chamfering teeth are easy to wear, so that great loss is caused; in this scheme, chamfer tooth module 2 detachable equipment is on broach body 1, and after chamfer tooth alloy blade 3 appears wearing and tearing, change chamfer tooth module 2 can to but reuse broach body 1, greatly reduced the economic loss that work piece loss leads to, and when carrying out different work piece processing, can carry out the combination with the chamfer tooth module 2 of different models and broach body 1 and use.
Meanwhile, as shown in fig. 6 and 7, the chamfer tooth module 2 is installed in the installation groove 102 through a fixing component, the width value of the chamfer tooth module 2 is smaller than that of the installation groove 102 by 0.2-0.3 mm, after the installation is completed, the chamfer tooth module 2 is positioned in the middle of the installation groove 102, and is placed on a platform with the two side faces of the broach body 1 as the reference, and the symmetry degree of the chamfer tooth module 2 is within 0.05mm by using a dial indicator. The design has the advantages that: when the chamfering tooth module 2 is arranged, the precision control can be facilitated, and a certain transverse adjustment amount of the chamfering tooth module 2 on the broach body 1 can be ensured; moreover, more importantly, by the distance difference between the side surface of the chamfering tooth module 2 and the side surface of the broach body 1, whether the fixing component is loosened and deformed or not and whether the chamfering tooth module 2 is deviated or not can be judged conveniently.
Preferably, in this embodiment, the chamfer tooth module 2 has a width that is 0.2mm less than the width of the bottom of the mounting groove 102.
Further, the fixing assembly comprises two bolts 5, the mounting groove 102 is provided with two through holes 1021, and the chamfer tooth module 2 is provided with threaded holes 201 corresponding to the through holes 1021; the chamfer tooth module 2 is locked and installed on the broach body 1 through the through hole 1021 and the threaded hole 201 by the bolt 5; the bottom of the broach body 1 is provided with a counter bore 1022 corresponding to the bottom of the through hole 1021, and the length of the chamfering tooth module 2 is matched with the length of the groove of the mounting groove 102. In this scheme, bolt 5 is the counter bore bolt, makes the screw hole on the chamfer tooth module 2, and broach body 1 makes the through-hole to and the design of broach body 1 bottom surface side processing counter bore can be convenient for the equipment assembly of each part, simultaneously, the bolt head of bolt 5 can bury in broach body 1, and then can avoid the bolt head to exceed broach body 1 and produce when processing and interfere.
In this embodiment, to the work piece that aperture, keyway degree of depth are different, this scheme can be adopted to grind low mounting groove 102, perhaps adds the mode of gasket and adjusts for the application of the keyway broach of this scheme is more extensive.
Preferably, in a specific manner of adding the gasket, as shown in fig. 8, the gasket 6 is installed between the chamfer tooth module 2 and the bottom of the installation groove 102, and the gasket 6 is provided with an installation hole corresponding to the through hole 1021 so as to be conveniently sleeved and fixed on the two bolts 5.
Further, the front end and the rear end of the bottom of the gasket 6 are respectively provided with a thickened part 602 in a downward extending way, and the mounting groove 102 is provided with a limit groove 1023 corresponding to the thickened part 602; the width of the limiting groove 1023 is smaller than that of the chamfering tooth module 2, and after the chamfering tooth module 2 is installed, the side edge of the gasket 6 can be completely covered and pressed.
The design of the thickened part 602 and the limit groove 1023 can facilitate rapid alignment when the gasket 6 is installed, and the limit groove 1023 can limit the gasket 6, so that the gasket 6 can be stably installed between the chamfer tooth module 2 and the installation groove 102 without arranging a threaded hole and accurately aligning and installing the bolt 5, and is not easy to deflect; the gasket 6 itself has a smaller thickness, and if it is fixed to the bolt 5 by means of the threaded hole, the stability is not strong, so that the design of the thickened portion 602 and the limit groove 1023 also enhances the stability of the mounting gasket 6.
Further, the design of the thickening portion 602 also increases the thickness of two ends of the gasket 6, when the scheme is implemented, broaching of the modular key slot broach with the alloy chamfer teeth only needs one main motion, and feeding motion is completed by the tooth lift of the broach, so that the front end of the gasket 6 is stressed more in the process of the tooth lift of the broach, and therefore, the thickening design of the end portion of the gasket 6 also accords with the characteristic that the front end of the gasket 6 is stressed more, so that the gasket 6 is more resistant to extrusion and more durable.
Still further, the chamfer tooth module 2 includes a chamfer tooth module body 202, and a plurality of chamfer tooth alloy blades 3 welded to the chamfer tooth module body 202; a plurality of welding grooves 204 for welding the chamfer tooth alloy blade 3 are formed in the chamfer tooth module body 202, and the front ends of the welding grooves 204 are higher than the rear ends; the hardness of the chamfer tooth alloy blade 3 is greater than that of the chamfer tooth module body 202, so that the durability of the cutter is enhanced, and the abrasion resistance of the chamfer tooth module 2 is further enhanced.
When the screw is used, in order to avoid the screw 5 from breaking, thereby causing injury to operators or equipment, the scheme is also provided with an emergency safety structure; specifically, in the scheme, a second threaded hole 203 is further formed in the middle of the chamfer tooth module 2, and a safety screw 4 is screwed in the second threaded hole 203; as shown in fig. 9 and 12, the safety screw 4 extends downward into the second through hole 1024 on the broach body 1, and the aperture of the second through hole 1024 is larger than the diameter of the safety screw 4; meanwhile, the gasket 6 is provided with a hole 603 corresponding to the second through hole 1024, and the aperture of the hole 603 is larger than the diameter of the gasket 6; thereby the safety screw 4 is fixed in chamfer tooth module 2, and safety screw 4 bottom is unsettled in through-hole two 1024 to during the broaching, safety screw 4 atress, when screw 5 takes place to break, safety screw 4 bottom can block in through-hole two 1024, plays the effect of interim fixed, prevents chamfer tooth module 2 departure.
Preferably, the second through hole 1024 is a round table type hole, and the aperture of the top end of the second through hole 1024 is larger than the diameter of the safety screw 4; a high-hardness sleeve 7 matched with the size of the second 1024 through hole is welded in the second 1024 through hole, the high-hardness sleeve 7 is also in a round table shape, the aperture of the top of the high-hardness sleeve 7 is larger than the diameter of the safety screw 4, and the arrangement of the high-hardness sleeve 7 can strengthen the abrasion resistance of the second 1024 through hole; in order to make the reliability of the safety screw 4 stronger, a small nut can be screwed at the bottom end of the safety screw 4, so as to further prevent the bottom of the safety screw 4 from moving out of the second through hole 1024.
It should be noted that, the drawings of the present solution are only simple schematic structural diagrams, and the structural changes without departing from the concept of the present solution are all within the protection scope of the present solution.
Claims (8)
1. Assembled alloy chamfer tooth modularization keyway broach, its characterized in that:
comprises a broach body (1) and a chamfer tooth module (2);
the broach body (1) comprises a cutter body (101) and a mounting groove (102), wherein the mounting groove (102) is positioned above the rear part of the cutter body (101);
the chamfering tooth module (2) is detachably arranged in an installation groove (102) at the rear part of the broach body (1) through a fixing assembly.
2. The fabricated alloy chamfer tooth modular keyway broach of claim 1, wherein: the mounting groove (102) is a through groove extending leftwards and rightwards;
the width value of the chamfer tooth module (2) is 0.2-0.3 mm smaller than the width value of the bottom of the mounting groove (102);
after the installation is completed, the symmetry degree of the two side surfaces of the broach body (1) relative to the chamfer tooth module (2) is less than 0.05mm.
3. The fabricated alloy chamfer tooth modular keyway broach of claim 2, wherein: the fixing component is a bolt (5);
the mounting groove (102) is provided with at least two through holes (1021), and the chamfer tooth module (2) is provided with a threaded hole (201) corresponding to the through holes (1021);
the chamfer tooth module (2) is locked and installed on the broach body (1) through a through hole (1021) and a threaded hole (201) through a bolt (5);
the bottom of the broach body (1) is provided with a counter bore (1022) corresponding to the through hole (1021);
the length of the chamfering tooth module (2) is matched with the length of the mounting groove (102).
4. The fabricated alloy chamfer tooth modular keyway broach as in claim 3, wherein: the assembled alloy chamfering tooth modularized keyway broach further comprises a gasket (6) which can be arranged between the chamfering tooth module (2) and the mounting groove (102); the gasket (6) is provided with a mounting hole corresponding to the through hole (1021).
5. The fabricated alloy chamfer tooth modular keyway broach as in claim 4, wherein: the modular key slot broach for the chamfering teeth of the fabricated alloy also comprises a positioning key (8), a positioning groove (606) matched with the positioning key (8) is further formed in the bottom of the mounting groove (102), and a butt joint groove (206) is formed in the chamfering tooth module (2) corresponding to the positioning groove (606);
the width of the positioning key (8) is matched with the positioning groove (606) and the butt joint groove (206) to transversely limit the chamfer tooth module (2), and the height value from the bottom of the positioning groove (606) to the top of the butt joint groove (206) is larger than the height of the positioning key (8).
6. The fabricated alloy chamfer tooth modular keyway broach as in claim 5, wherein: the middle part of the gasket (6) is also provided with a square hole matched with the positioning key (8).
7. The fabricated alloy chamfer tooth modular keyway broach as in claim 6, wherein: the gaskets (6) are parallel slices, and the width of the gaskets (6) is smaller than that of the chamfering tooth module (2).
8. The fabricated alloy chamfer tooth modular keyway broach as in any one of claims 4 or 7, wherein: the chamfering tooth module (2) comprises a chamfering tooth module body (202) and a plurality of chamfering tooth alloy blades (3) welded on the chamfering tooth module body (202);
a plurality of welding grooves are formed in the chamfering tooth module body (202), and the rear ends of the welding grooves are higher than the front ends of the chamfering tooth module body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220783504.5U CN219093824U (en) | 2022-04-06 | 2022-04-06 | Assembled alloy chamfer tooth modularization keyway broach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220783504.5U CN219093824U (en) | 2022-04-06 | 2022-04-06 | Assembled alloy chamfer tooth modularization keyway broach |
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| CN219093824U true CN219093824U (en) | 2023-05-30 |
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| CN202220783504.5U Active CN219093824U (en) | 2022-04-06 | 2022-04-06 | Assembled alloy chamfer tooth modularization keyway broach |
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| CN (1) | CN219093824U (en) |
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- 2022-04-06 CN CN202220783504.5U patent/CN219093824U/en active Active
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