CN216441789U - Gear hob structure for assembling mandrel - Google Patents
Gear hob structure for assembling mandrel Download PDFInfo
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- CN216441789U CN216441789U CN202123432479.0U CN202123432479U CN216441789U CN 216441789 U CN216441789 U CN 216441789U CN 202123432479 U CN202123432479 U CN 202123432479U CN 216441789 U CN216441789 U CN 216441789U
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- hob
- gear
- mandrel
- gear hob
- hobbing cutter
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Abstract
The utility model relates to an assembly mandrel gear hob structure which comprises a hob mandrel and a gear hob, wherein the gear hob is sleeved on the hob mandrel and rotates along with the hob mandrel, a limiting convex shoulder is arranged on the hob mandrel on one side of the gear hob, a clamping groove for clamping is arranged on the limiting convex shoulder, a first taper end is arranged on the hob mandrel on the outer side of the limiting convex shoulder, a locking nut is arranged on the hob mandrel on the other side of the gear hob, and a second taper end is arranged on the hob mandrel on the outer side of the locking nut. In the manufacturing, grinding and using stages of the gear hob, the gear hob and the hob mandrel are always in an assembled state without being disassembled and replaced, the position relation of the gear hob and the hob mandrel is ensured, the precision of the gear hob is improved, and the problems of large cutter jumping, low size precision and the like in the manufacturing, grinding and using processes of the existing gear hob are solved.
Description
Technical Field
The utility model relates to a gear hob structure for an assembly mandrel, and belongs to the technical field of machining.
Background
As is well known, the tooth profile error of a hobbing gear mainly depends on the hob accuracy, and in order to reduce the gear meshing noise and improve the meshing accuracy, the tooth profile error of the gear needs to be reduced and the hob accuracy needs to be improved.
In the existing manufacturing process of gear hobs, a mandrel of a hob and a hob are separately and independently processed and have respective references, and after the mandrel and the hob are processed respectively, the gear hob and the mandrel of the hob are assembled and clamped on a machine tool for processing; when other gear hobs need to be replaced, the original assembled gear hob needs to be disassembled, and the other gear hobs are replaced for machining. During sharpening, the gear hob needs to be detached from the hob mandrel for sharpening.
The gear hob and the hob mandrel are respectively processed during manufacturing, and the references of the gear hob and the hob mandrel are different; during the use and the polishing process, the conditions of disassembly and reassembly occur; therefore, the cutter is jumped greatly during the use process of the hob, and the precision is reduced.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides the gear hob structure with the assembled mandrel, which is simple in structure, convenient to operate and capable of improving the use precision of the hob.
The technical scheme for solving the technical problems is as follows: the utility model provides an assembly dabber gear hobbing cutter structure, includes hobbing cutter dabber and gear hobbing cutter, its characterized in that, gear hobbing cutter suit is in the outside of hobbing cutter dabber is followed the hobbing cutter dabber rotates gear hobbing cutter one side the hobbing cutter is equipped with spacing convex shoulder in the spindle, be equipped with the draw-in groove that is used for the clamping on the spacing convex shoulder the hobbing cutter is equipped with first tapering end in the spindle the opposite side of gear hobbing cutter the hobbing cutter is equipped with lock nut in the spindle the lock nut outside the hobbing cutter is equipped with second tapering end in the spindle.
The utility model has the beneficial effects that: after the hob mandrel is machined, the gear hob is assembled on the hob mandrel to be machined, the gear hob is specifically sleeved on the hob mandrel and locked through a nut, one side of the gear hob is positioned through a limiting convex shoulder on the hob mandrel, the other side of the gear hob is limited through a locking nut, and then the assembled hob structure is integrally placed into a grinding machine to machine the gear hob, so that the gear hob and the hob mandrel have the same machining standard, and the machining precision of the gear hob is improved; when the hobbing cutter is used, clamping on a machine tool can be realized through matching of the clamping groove and the taper end on the hobbing cutter mandrel, so that hobbing of the gear hobbing cutter structure is realized; when the gear hob needs to be maintained and polished, the gear hob can be clamped on a polishing machine through two taper ends of a hob mandrel, and the hob is driven to integrally rotate to complete the work of polishing the hob. In a word, the gear hob grinding and polishing device is simple in structure and convenient to operate, the gear hob and the hob mandrel are always in an assembled state when the gear hob is manufactured, polished and used, the gear hob is not disassembled and replaced, the position relation between the gear hob and the hob mandrel is guaranteed, and the precision of the gear hob is improved.
On the basis of the technical scheme, the utility model can be further improved as follows.
Furthermore, positioning rings are arranged between the limiting shoulders and the gear hob and/or between the gear hob and the locking nut.
The beneficial effect who adopts above-mentioned further scheme is that, the holding ring can set up between spacing convex shoulder and gear hob or between gear hob and lock nut or all have in gear hob's left and right both sides, can adjust gear hob's position through the holding ring, realizes gear hob at the location installation in hob dabber middle part, satisfies gear hob's operating space's requirement.
Further, the hob mandrel is in key connection with the gear hob.
Adopt the beneficial effect of above-mentioned further scheme to be, realize the synchronous rotation of gear hob and hobbing cutter dabber through the key-type connection.
Further, the hob mandrel is connected with the gear hob through a flat key.
The gear hob has the beneficial effects that the key groove matched with the flat key is arranged on the gear hob, and the flat key is used for transmitting torque to realize the follow-up of the gear hob.
Furthermore, bosses are arranged on the end faces of one end or two ends of the gear hob, and the outer diameter of each boss is smaller than that of the gear hob.
The gear hob is stably positioned by contacting and matching the gear hob with the limiting convex shoulder, the locking nut or the positioning ring.
Furthermore, the number of the clamping grooves is two, and the two clamping grooves are symmetrically arranged on the limiting convex shoulder.
The gear hob has the advantages that the positions and the number of the clamping grooves are matched with the driving end of the grinding machine, when the gear hob is used, the assembled hob structure is integrally clamped on the grinding machine, specifically the clamping grooves and the first taper end are clamped on the driving end of the machine tool, and the second taper end is clamped in a taper sleeve of the machine tool, so that the hob structure is stably positioned, and hobbing is convenient to carry out.
Drawings
FIG. 1 is a schematic structural view of embodiment 1 of the present invention;
FIG. 2 is a schematic structural diagram of embodiment 2 of the present invention;
FIG. 3 is a right side view of FIG. 2;
FIG. 4 is a cross-sectional view taken along line A-A of FIG. 3;
FIG. 5 is a schematic structural view of the hob mandrel of the present invention;
in the figure, 1, a gear hob; 101. a boss; 2. a hob mandrel; 201. a limiting convex shoulder; 202. a card slot; 203. a first tapered end; 204. a second tapered end; 3. a flat bond; 4. a positioning ring; 5. and locking the nut.
Detailed Description
The principles and features of this invention are described below in conjunction with examples, which are set forth to illustrate, but are not to be construed to limit the scope of the utility model.
Embodiment 1, as shown in fig. 1, an assembly dabber gear hobbing cutter structure, including hobbing cutter dabber 2 and gear hobbing cutter 1, gear hobbing cutter 1 suit is in the outside of hobbing cutter dabber 2 and along the hobbing cutter dabber rotates gear hobbing cutter one side be equipped with spacing convex shoulder 201 on the hobbing cutter dabber 2, be equipped with the draw-in groove 202 that is used for the clamping on the spacing convex shoulder 201 the outside spacing convex shoulder 201 be equipped with first tapering end 203 on the hobbing cutter dabber 2 the opposite side of gear hobbing cutter be equipped with lock nut 5 on the hobbing cutter dabber 2 the lock nut 5 outside be equipped with second tapering end 204 on the hobbing cutter dabber 2.
And the hob mandrel 2 is in key connection with the gear hob 1. Synchronous rotation of the gear hob 1 and the hob mandrel 2 is achieved through key connection.
The hob mandrel 2 is connected with the gear hob 1 through a flat key 3. The gear hob 1 is provided with a key groove matched with the flat key 3, and the flat key 3 is used for transmitting torque to realize the follow-up of the gear hob.
And bosses 101 are arranged on the end faces of one end or two ends of the gear hob 1, and the outer diameter of each boss 101 is smaller than that of the gear hob. And the gear hob is stably positioned by contacting and matching with the limiting shoulder 201, the locking nut 5 or the positioning ring 4.
Two clamping grooves 202 are arranged, and the two clamping grooves 202 are symmetrically arranged on the limiting shoulder 201. The position and the quantity of the clamping grooves 202 are matched with the driving end of the grinding machine, when the gear hob is used, the assembled hob structure is integrally clamped on the grinding machine, specifically, the clamping grooves 202 and the first taper end 203 are clamped on the driving end of the machine tool, and the second taper end 204 is clamped in a taper sleeve of the machine tool, so that the hob structure is stably positioned, and hobbing is convenient to carry out.
In embodiment 3, a positioning ring 4 is arranged between the stopping shoulder 201 and the gear hob 1. The locating ring 4 can be arranged between the limiting convex shoulder 201 and the gear hob 1, the position of the gear hob 1 can be adjusted through the locating ring 4, the gear hob 1 is installed in the middle of the hob mandrel 2 in a locating mode, and the requirement of the operation space of the gear hob is met. The rest of the structure is the same as that of embodiment 2, and therefore, the description thereof will not be repeated.
In the manufacturing stage of the gear hob 1 and the hob mandrel 2, the hob mandrel 2 is firstly processed, before the gear hob 1 is processed to the processing tooth profile, the positioning ring 4 is assembled on the hob mandrel 2, the flat key 3 is assembled on the hob mandrel 2, the gear hob 1 is assembled through the flat key 3, another positioning ring 4 is installed, finally, the components are locked through the hexagonal locking nut 5, and then the assembled gear hob 1 is integrally placed into a grinding machine to perform the processing work of the hob tooth profile.
In the use stage of the gear hob 1, the assembled gear hob structure with the hob mandrel 2 is integrally clamped on a gear hobbing machine tool, one end with the taper of the clamping groove 202 is clamped on the driving end of the machine tool, and one side with the thread is clamped in a taper sleeve of the machine tool and fixed for gear hobbing.
In the grinding stage of the gear hob 1, the assembled gear hob structure with the hob mandrel 2 is integrally clamped on a grinding machine tool, two ends of the hob mandrel 2 are clamped in a top mode, and the machine tool drives the gear hob structure with the hob mandrel 2 to integrally rotate, so that the grinding hob is completed.
Because the gear hob and the hob mandrel 2 are always in an assembled state in the manufacturing, grinding and using stages of the gear hob 1, the gear hob is not disassembled and replaced, the position relation between the gear hob and the hob mandrel 2 is ensured, the precision of the gear hob is improved, and the problems of large cutter bounce, low size precision and the like in the manufacturing, grinding and using processes of the existing gear hob are solved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (7)
1. The utility model provides an assembly dabber gear hobbing cutter structure, includes hobbing cutter dabber (2) and gear hobbing cutter (1), its characterized in that, gear hobbing cutter (1) suit is in the outside of hobbing cutter dabber (2) is followed hobbing cutter dabber (2) rotates gear hobbing cutter (1) one side be equipped with spacing convex shoulder (201) on hobbing cutter dabber (2), be equipped with draw-in groove (202) that are used for the clamping on spacing convex shoulder (201) the outside spacing convex shoulder (201) be equipped with first tapering end (203) on hobbing cutter dabber (2) the opposite side of gear hobbing cutter (1) be equipped with lock nut (5) on hobbing cutter dabber (2) the lock nut (5) outside be equipped with second tapering end (204) on hobbing cutter dabber (2).
2. The assembly mandrel gear hob structure according to claim 1, characterized in, that between the stop shoulder (201) and the gear hob (1) and/or between the gear hob (1) and the lock nut (5) there is a positioning ring (4).
3. The assembly mandrel gear hob structure according to claim 1 or 2, characterized in, that the hob mandrel (2) is keyed with the gear hob (1).
4. The assembly mandrel gear hob structure according to claim 3, characterized in, that the hob mandrel (2) is connected with the gear hob (1) by a flat key (3).
5. The assembly mandrel gear hob structure according to claim 1 or 2, characterized in, that the gear hob (1) is provided with a boss (101) on the end face of one or both ends.
6. The assembly mandrel gear hob structure according to claim 5, characterized in, that the outer diameter of the boss (101) is smaller than the outer diameter of the gear hob (1).
7. The assembly mandrel gear hob structure according to claim 1, characterized in that there are two of said clamping grooves (202), and two of said clamping grooves (202) are symmetrically arranged on said stop shoulder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123432479.0U CN216441789U (en) | 2021-12-30 | 2021-12-30 | Gear hob structure for assembling mandrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123432479.0U CN216441789U (en) | 2021-12-30 | 2021-12-30 | Gear hob structure for assembling mandrel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216441789U true CN216441789U (en) | 2022-05-06 |
Family
ID=81376642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123432479.0U Active CN216441789U (en) | 2021-12-30 | 2021-12-30 | Gear hob structure for assembling mandrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216441789U (en) |
-
2021
- 2021-12-30 CN CN202123432479.0U patent/CN216441789U/en active Active
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