CN214443598U - Gear hobbing clamp device for gear machining - Google Patents
Gear hobbing clamp device for gear machining Download PDFInfo
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- CN214443598U CN214443598U CN202120719699.2U CN202120719699U CN214443598U CN 214443598 U CN214443598 U CN 214443598U CN 202120719699 U CN202120719699 U CN 202120719699U CN 214443598 U CN214443598 U CN 214443598U
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- mandrel
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- tooth cylindrical
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Abstract
The utility model discloses a gear hobbing fixture device for gear machining belongs to gear type parts machining process technical field. The clamp comprises a mandrel, a bush, a clamp body, a mandrel and a pressing plate, wherein the bush is connected to the center inside a disc-shaped base of the clamp body, a mandrel shaft body is connected with the circular bush, a nut A is in threaded connection with the top of the clamp body, a Morse 3# taper inner hole is formed inside the center of a cylinder of the clamp body, and three long grooves which are uniformly and equally divided at intervals are formed in the edge of the base of the clamp body; the method comprises the steps of installing a straight-tooth cylindrical gear A and a straight-tooth cylindrical gear B to be machined on a mandrel, pressing the straight-tooth cylindrical gear A and the straight-tooth cylindrical gear B by using a pressing plate, enabling a nut B to be located at the top of the pressing plate and to be tightly connected with a threaded column, protruding out of the pressing plate, of the top end of the mandrel through the nut B, and enabling a shaft body Morse 3# taper slight handle of the mandrel to be combined with a Morse 3# taper inner hole of a matched clamp body. The utility model discloses reduce manufacturing cost, shortened production cycle, improved whole production efficiency.
Description
Technical Field
The utility model relates to a gear hobbing fixture device for gear machining belongs to gear type parts machining process technical field.
Background
In the traditional process, the mode of gear shaping, gear hobbing and gear shaping sizing is adopted for fine machining of the straight-tooth cylindrical gear, and in order to ensure the improvement of product quality and machining efficiency, the gear hobbing is most suitable for machining. The hobbing clamp is designed according to the structure of a hobbing machine tool and the shape of a gear blank, but if a set of gear grinding clamp needs to be designed according to the size and the height of an inner hole of each gear, the manufacturing cost is wasted. When the gear is machined, in order to ensure the tooth profile, radial run-out and tooth surface roughness of the gear and meet the requirements, a stable and reliable clamp needs to be designed, and the gear is beneficial to positioning, clamping, tool setting, alignment, clamping, dismounting and the like in the gear hobbing process.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a gear hobbing fixture device for gear machining, the device are applicable to straight-tooth cylindrical gear's processing, have reduced manufacturing cost, have improved the machining precision, have shortened production cycle, have improved whole production efficiency.
The utility model provides a technical scheme that its technical problem adopted is: a gear hobbing clamp device for gear machining comprises a mandrel, a bush, a clamp body, a mandrel and a pressing plate.
The center of the inside of a disc-shaped base of the clamp body is connected with a bushing, a shaft body of a mandrel is connected with the circular bushing, the top of the clamp body is in threaded connection with a nut A, a Morse 3# taper inner hole is formed in the center of a cylinder of the clamp body, three long grooves are formed in the edge of the base of the clamp body at equal intervals, T-shaped bolts carried by a hobbing machine tool are respectively inserted into the long grooves, the bottom of the mandrel is inserted into a round hole of the base of the hobbing machine tool, and then the T-shaped nuts are connected with the T-shaped bolts carried by the machine tool, so that the clamp body is fixed on a machine tool workbench; the method comprises the steps that a straight-tooth cylindrical gear A and a straight-tooth cylindrical gear B to be processed are installed on a mandrel and located between the mandrel and a bowl-shaped pressing plate, the straight-tooth cylindrical gear A and the straight-tooth cylindrical gear B are pressed by the pressing plate, the nut B is located at the top of the pressing plate and is in fastening connection with a threaded column, protruding out of the top end of the mandrel, of the threaded column, the straight-tooth cylindrical gear A and the straight-tooth cylindrical gear B are fixed on the mandrel, the mandrel after connection is completed, the straight-tooth cylindrical gear A and the straight-tooth cylindrical gear B to be processed are taken as a whole, a shaft body Morse 3# taper slight handle of the mandrel is combined with a Morse 3# taper inner hole of a matched clamp body, and a center point of a self-carrying belt of a hobbing machine tool is abutted to a center hole of the mandrel, and the straight-tooth cylindrical gear A and the straight-tooth cylindrical gear B to be processed are aligned.
When the fixture works, the whole fixture is driven by the driving end of a gear hobbing machine tool to rotate together with a straight-toothed spur gear A and a straight-toothed spur gear B to be machined, and the straight-toothed spur gear A and the straight-toothed spur gear B are arranged together for machining because the tooth profiles of the straight-toothed spur gear A and the straight-toothed spur gear B are ensured to be consistent; the assembly of clearance fit at the bottom of the mandrel enters into a round hole of a base of a gear hobbing machine tool, the mandrel is limited and positioned, and when the mandrel is to be disassembled, the nut A is only required to be screwed, and the mandrel is jacked up by the nut A.
According to the structural characteristics of a machine tool and the structural characteristics of parts, the designed clamp needs to be fixed on a gear hobbing machine tool, the size of a working part is calculated according to the required size by utilizing the positioning characteristics of inner holes and end faces of the parts, the inner holes and the end faces of the parts are machined to be fixed in size, and a core shaft and a pressing plate are designed by utilizing the holes and the end faces, so that the clamp can be connected with the gear hobbing clamp and can fix the parts, the positioning and clamping reliability in the gear hobbing process is ensured, and the requirement of generating and machining of a gear blank and a hob is met.
The utility model has the advantages that: the utility model has simple structure and reasonable design, the hobbing clamp adopts split type assembly, and gear clamping mandrels with different shaft diameters and positioning lengths are designed by utilizing one clamp body according to gears with different inner hole sizes, thereby not only saving the design and manufacturing cost of the clamp, but also shortening the processing period of the clamp; the gear is machined by using the hobbing clamp, so that on the basis of meeting the drawing requirements, the clamping time can be saved, the machining precision can be improved, the production period can be shortened, the overall production efficiency can be improved, and the hobbing clamp has specificity and universality; the hobbing clamp meets the process requirements and the requirements of mass production, has no potential safety hazard, and is small in manufacturing difficulty and operability; this gear hobbing anchor clamps can promote in the anchor clamps design of similar shape gear machining, can remain the anchor clamps body, designs special part structure alone, to can enlarging the range of work, can play the important function in the aspect of improving production efficiency.
Drawings
The present invention will be further described with reference to the accompanying drawings and the following detailed description.
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of fig. 1 taken along direction a.
Fig. 3 is a front view of the spur gear a and the spur gear B.
Fig. 4 is a plan view of spur gear a and spur gear B.
Reference numbers in the figures:
1. mandrel, 2, bush, 3, clamp body, 301, elongated slot, 4, nut A, 5, mandrel, 6, pressure plate, 7, nut B, 8, spur gear A, 9 and spur gear B.
Detailed Description
As shown in fig. 1-4, a gear hobbing clamp device for gear machining comprises a mandrel 1, a bush 2, a clamp body 3, a mandrel 5 and a pressing plate 6, wherein the bush 2 is connected to the center inside a disc-shaped base of the clamp body 3, the shaft body of the mandrel 1 is connected with the circular bush 2, a nut a4 is in threaded connection with the top of the clamp body 3, a morse 3# taper inner hole is formed inside the center of a cylinder of the clamp body 3, three long grooves 301 which are uniformly and equally divided at intervals are formed in the edge of the base of the clamp body 3, T-shaped bolts carried by a gear hobbing machine tool are respectively inserted into the long grooves 301, the bottom of the mandrel 1 is inserted into a circular hole of the base of the gear hobbing machine tool, and then the T-shaped nuts are connected with the T-shaped bolts carried by the machine tool, so that the clamp body 3 is fixed on a workbench of the machine tool; the method comprises the steps of installing a spur gear A8 and a spur gear B9 to be machined on a mandrel 5 and located between the mandrel 5 and a bowl-shaped pressing plate 6, pressing the spur gear A8 and the spur gear B9 by the pressing plate 6, enabling a nut B7 to be located at the top of the pressing plate 6, enabling a nut B7 to be in fastening connection with a threaded column, protruding out of the pressing plate 6, of the top end of the mandrel 5, fixing the spur gear A8 and the spur gear B9 on the mandrel 5, enabling the connected mandrel 5, the spur gear A8 and the spur gear B9 to be machined to be a whole, enabling a shaft body Morse 3# taper shank of the mandrel 5 to be combined with a Morse 3# taper inner hole of a matched clamp body 3, and enabling a center tip of a gear hobbing machine tool to be abutted against a center hole of the mandrel 5 to align the spur gear A8 and the spur gear B9 to be machined.
When the fixture works, the whole fixture is driven by the driving end of a gear hobbing machine tool to rotate together with a straight spur gear A8 and a straight spur gear B9 to be machined, and because the tooth profiles of the straight spur gear A8 and the straight spur gear B9 are required to be consistent, the straight spur gear A8 and the straight spur gear B9 are required to be put together for machining; the assembly of the clearance fit of the bottom of the mandrel 1 enters a round hole of a base of a gear hobbing machine tool, the mandrel is limited and positioned, when the mandrel 5 is to be disassembled, only the nut A4 needs to be screwed, and the mandrel 5 is jacked up by the nut A4.
According to the structural characteristics of a machine tool and the structural characteristics of parts, the designed clamp needs to be fixed on a gear hobbing machine tool, the size of a working part is calculated according to the required size by utilizing the positioning characteristics of inner holes and end faces of the parts, the inner holes and the end faces of the parts are machined to be sized, and the core shaft 5 and the pressing plate 6 are designed by utilizing the holes and the end faces, so that the clamp can be connected with the gear hobbing clamp and can fix the parts, the positioning and clamping are reliable in the gear hobbing process, and the requirement for generating and machining of a gear blank and a hob is met.
Claims (1)
1. The utility model provides a gear hobbing fixture device for gear machining, includes mandrel (1), bush (2), anchor clamps body (3), dabber (5) and clamp plate (6), its characterized in that: the center of the interior of a disc-shaped base of a clamp body (3) is connected with a bushing (2), a shaft body of a mandrel (1) is connected with the circular bushing (2), a nut A (4) is connected with the top of the clamp body (3) in a threaded manner, a Morse 3# taper inner hole is formed in the center of a cylinder of the clamp body (3), three long grooves (301) which are uniformly and equally divided at intervals are formed in the edge of a base of the clamp body (3), T-shaped bolts of a hobbing machine tool are respectively inserted into the long grooves (301), the bottom of the mandrel (1) is inserted into a round hole of the base of the hobbing machine tool, the T-shaped nuts are connected with the T-shaped bolts of the machine tool, and the clamp body (3) is fixed on a workbench of the machine tool; installing a straight-tooth cylindrical gear A (8) and a straight-tooth cylindrical gear B (9) to be processed on a mandrel (5) and locating between the mandrel (5) and a bowl-shaped pressing plate (6), pressing the straight-tooth cylindrical gear A (8) and the straight-tooth cylindrical gear B (9) by the pressing plate (6), wherein a nut B (7) is located at the top of the pressing plate (6), the nut B (7) is fixedly connected with a threaded column which protrudes out of the pressing plate (6) and is arranged at the top end of the mandrel (5), the straight-tooth cylindrical gear A (8) and the straight-tooth cylindrical gear B (9) are fixed on the mandrel (5), the mandrel (5) which is connected is used as a whole with the straight-tooth cylindrical gear A (8) and the straight-tooth cylindrical gear B (9) to be processed, a Morse 3# taper handle of the mandrel (5) is combined with a Morse 3# taper inner hole of a matched clamp body (3), and the center of a self-belt of a gear hobbing machine is used for jacking up to the top of the mandrel (5), and (3) aligning a straight spur gear A (8) and a straight spur gear B (9) to be processed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120719699.2U CN214443598U (en) | 2021-04-09 | 2021-04-09 | Gear hobbing clamp device for gear machining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120719699.2U CN214443598U (en) | 2021-04-09 | 2021-04-09 | Gear hobbing clamp device for gear machining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214443598U true CN214443598U (en) | 2021-10-22 |
Family
ID=78177956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120719699.2U Active CN214443598U (en) | 2021-04-09 | 2021-04-09 | Gear hobbing clamp device for gear machining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214443598U (en) |
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2021
- 2021-04-09 CN CN202120719699.2U patent/CN214443598U/en active Active
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