CN202845958U - Liquid expansion type plate gear hobbing tool - Google Patents
Liquid expansion type plate gear hobbing tool Download PDFInfo
- Publication number
- CN202845958U CN202845958U CN 201220530600 CN201220530600U CN202845958U CN 202845958 U CN202845958 U CN 202845958U CN 201220530600 CN201220530600 CN 201220530600 CN 201220530600 U CN201220530600 U CN 201220530600U CN 202845958 U CN202845958 U CN 202845958U
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- liquid
- swollen
- axle
- hydraulic expansion
- centre bore
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Abstract
The utility model discloses a liquid expansion type plate gear hobbing tool comprises a locating sleeve, a connecting seat and a base, wherein a hydraulic expansion mandrel is installed in a central hole of the connecting seat, a reduction sleeve is sleeved on the upper portion of the hydraulic expansion mandrel, a hydraulic expansion mandrel ejecting rod is installed in a central hole of the base, and a long-rod-shaped section on the upper portion of the hydraulic expansion mandrel ejecting rod is inserted into a hydraulic expansion oil cavity in the central position on the lower portion of the hydraulic expansion mandrel and capable of moving up and down in the hydraulic expansion oil cavity. The hydraulic expansion mandrel is adopted for the tool, an upper portion diameter of the hydraulic expansion mandrel is increased under the hydraulic pressure effect, compared with a traditional mechanical expansion type structure, the upper portion diameter of the hydraulic expansion mandrel is enabled to change more evenly and regularly, and therefore the reduction sleeve is enabled to expand evenly in the circumferential direction, an inner hole of a work piece can be located well, the coaxiality of the center line of the work piece and the center line of the tool is reliably guaranteed, the processing precision of gears is guaranteed, and meanwhile, the defect that a traditional polish rod structure is poor in positioning accuracy due to the fact that the traditional polish rod structure is provided with gaps is overcome well.
Description
Technical field
The utility model belongs to the gear hobbing tooling field, specifically, relates in particular to a kind of liquid expanding dish tooth gear hobbing tooling.
Background technology
Dish tooth class part is a kind of important gear member, usually comes roughing dish tooth class part (hereinafter to be referred as workpiece) by gear-hobbing machine at present.Before the gear hobbing, need first clamping workpiece on gear hobbing tooling, existing dish tooth gear hobbing tooling generally has two kinds of structures: the first is mechanical expansion compact form structure, this frock makes the swelling of swelling part under the effect of mechanical force, thereby the endoporus to workpiece positions, but there is irregular, the uniform defective of swelling during swelling in the swelling part under the effect of mechanical force, so just cause the axiality of the center line of workpiece and frock center line relatively poor, and then eccentric situation appears, finally affect the machining accuracy of gear.
The second is the polished rod type structure, this class frock also is that the endoporus to workpiece positions, but the gap that has little surplus between the endoporus of workpiece and the polished rod, so also can cause the axiality of the center line of workpiece and frock center line relatively poor, and then eccentric situation appears, finally also can affect the machining accuracy of gear.
The utility model content
The liquid expanding dish tooth gear hobbing tooling that provides a kind of positioning accuracy high is provided technical problem to be solved in the utility model.
The technical solution of the utility model is as follows: a kind of liquid expanding dish tooth gear hobbing tooling, comprise the positioning sleeve (1) that sets gradually from top to bottom, Connection Block (2) and base (3), this three's center line is on the same straight line, and adjacent both are fixed together by screw, it is characterized in that: the swollen axle (4) of liquid is housed in the centre bore of described Connection Block (2), the axial line of the swollen axle of this liquid and the center line of Connection Block (2) are on the same straight line, and the expand bottom of axle (4) periphery of liquid is provided with positive stop lug boss (4a), this positive stop lug boss (4a) is by the step surface of Connection Block (2) upper inside wall and the bottom surface axial limiting of described positioning sleeve (1), and the centre bore of described positioning sleeve (1) is stretched out in the upper end of the swollen axle (4) of liquid; Be set with drill holder (5) on swollen axle (4) top of described liquid, the bottom of this drill holder (5) is positioned at the centre bore of described positioning sleeve (1), and the centre bore of positioning sleeve (1) is stretched out on the top of drill holder (5);
The swollen axle push rod (6) of liquid is housed in the centre bore of described base (3), the axial line of the swollen axle push rod of this liquid and the center line of base (3) are on the same straight line, and the elongated rod shape section (6a) on swollen axle push rod (6) top of liquid is inserted in the swollen oil pocket (4b) of liquid at swollen axle (4) the lower central place of described liquid, and can move up and down in the swollen oil pocket (4b) of this liquid.
In above structure, the described liquid axle (4) that expands is outsourcing piece, a normally push rod (name of this push rod is called the swollen axle push rod of liquid in this frock) that matches with the swollen axle (4) of this liquid, when the elongated rod shape section (6a) on the swollen axle push rod top of liquid upwards moves in the swollen oil pocket (4b) of liquid, liquid in the swollen oil pocket (4b) of liquid is extruded, thereby forced the expand diameter on axle (4) top of liquid to change.When the diameter on swollen axle (4) top of liquid changes, will make correspondingly distending of drill holder (5), the endoporus close contact of the drill holder of distending (5) and workpiece G, thus the endoporus of workpiece G is carried out centralized positioning.
This frock adopts the swollen axle (4) of liquid, the expand diameter on axle (4) top of this liquid increases under the effect of hydraulic coupling, compare with traditional mechanical type expanding structure, the expand variation of axle (4) upper diameter of liquid is more even, rule, thereby can make drill holder (5) at circumferencial direction distending equably, thereby well the endoporus of workpiece G positioned, guaranteed reliably the axiality of center line and this frock center line of workpiece G, avoided well off-centre, and then the machining accuracy of assurance gear, simultaneously also overcome well traditional polished rod type structure and caused the poor defective of positioning accuracy owing to having the gap, and had the clamping precision height, the advantages such as convenient mounting and clamping.
As preferably, in the centre bore of described base (3), set up an extension bar (7), the center line of the axial line of this extension bar and base (3) is on the same straight line, and the bottom of extension bar (7) is the section of stretching out of protuberate basic unit (3) centre bore; The center on described extension bar (7) top has circular cavity (7a), the path section (6b) of swollen axle push rod (6) bottom of described liquid is inserted in this circular cavity (7a), and this insertion end and circular cavity (7a) are threaded togather.
During installation, the section of stretching out of extension bar (7) links to each other with the stretch oil cylinder on the gear hobbing machine worktable.In actual use, our extension bar (7) of different length that can change the outfit according to the thickness of workpiece, thus improve the scope of application of this frock, improve the performance of this frock.
For the ease of linking to each other with stretch oil cylinder on the gear hobbing machine worktable, specially have external screw thread in the bottom of described extension bar (7) section of stretching out.
For the ease of making, described positive stop lug boss (4a) is structure as a whole with the swollen axle (4) of liquid.
Beneficial effect: this frock adopts the swollen axle (4) of liquid, the expand diameter on axle (4) top of this liquid increases under the effect of hydraulic coupling, compare with traditional mechanical type expanding structure, the expand variation of axle (4) upper diameter of liquid is more even, rule, thereby can make drill holder (5) at circumferencial direction distending equably, thereby well the endoporus of workpiece G positioned, guaranteed reliably the axiality of center line and this frock center line of workpiece G, avoided well off-centre, and then the machining accuracy of assurance gear, simultaneously also overcome well traditional polished rod type structure and caused the poor defective of positioning accuracy owing to having the gap, and had the clamping precision height, the advantages such as convenient mounting and clamping.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, this frock mainly is made of positioning sleeve 1, Connection Block 2, base 3, the swollen axle 4 of liquid, drill holder 5, the swollen axle push rod 6 of liquid and extension bar 7, wherein positioning sleeve 1, Connection Block 2 and base 3 set gradually from top to bottom, this three's center line is on the same straight line, and adjacent both are fixed together by screw (unmarked among the figure) respectively.Described Connection Block 2 and base 3 are rotary structure, and the top of base 3 is cylindrical section, and its underpart is up-small and down-big conical section.
The swollen axle 4 of liquid is housed in the centre bore of described Connection Block 2, and the axial line of the swollen axle 4 of this liquid and the center line of Connection Block 2 are on the same straight line.The swollen axle 4 of above-mentioned liquid is outsourcing piece, the center of swollen axle 4 bottoms of this liquid has the swollen oil pocket 4b of liquid, and the bottom of swollen axle 4 peripheries of liquid is integrally formed with positive stop lug boss 4a, this positive stop lug boss 4a is by the step surface of Connection Block 2 upper inside wall and the bottom surface axial limiting of described positioning sleeve 1, and the centre bore of described positioning sleeve 1 is stretched out in the upper end of the swollen axle 4 of liquid.Be set with drill holder 5 on swollen axle 4 tops of described liquid, the bottom of this drill holder 5 is positioned at the centre bore of described positioning sleeve 1, and the centre bore of positioning sleeve 1 is stretched out on the top of drill holder 5.
As can be seen from Figure 1, the swollen axle push rod 6 of liquid is housed in the centre bore of described base 3, the axial line of the swollen axle push rod 6 of this liquid and the center line of base 3 are on the same straight line.The diameter at swollen axle push rod 6 middle parts of above-mentioned liquid is maximum, and its top is elongated rod shape section 6a, and the bottom of the swollen axle push rod 6 of liquid is path section 6b.The elongated rod shape section 6a of the swollen axle push rod 6 of described liquid inserts in the swollen oil pocket 4b of liquid of the swollen axle 4 of liquid, and can move up and down in the swollen oil pocket 4b of liquid.
As can be seen from Figure 1, as preferably, extension bar 7 is housed in the centre bore of described base 3, the center line of the axial line of this extension bar 7 and base 3 is on the same straight line.The center on above-mentioned extension bar 7 tops has circular cavity 7a, and the bottom of this extension bar 7 is the section of stretching out of protuberate basic unit 3 centre bores, and has external screw thread in the bottom of this section of stretching out.The path section 6b of swollen axle push rod 6 bottoms of described liquid inserts in the circular cavity 7a of extension bar 7 bottoms, and this insertion end and circular cavity 7a are threaded togather.
Before the clamping workpiece G, need the base 3 of this frock is installed on the workbench of gear-hobbing machine, and the stretch oil cylinder on the workbench (not shown in FIG.) links to each other with the external screw thread that extension bar 7 stretches out pars infrasegmentalis.During clamping workpiece G, at first workpiece G is sleeved on outside the described drill holder 5, and the bottom surface of workpiece G gear part and the end face of described positioning sleeve 1 are fitted, then compress by the upper top end face with workpiece G that carries on the gear-hobbing machine, driving extension bar 7 by stretch oil cylinder at last moves up, on the swollen axle push rod 6 of extension bar 7 band hydrodynamics that moves move up, thereby the elongated rod shape section 6a by the swollen axle push rod 6 of liquid extrudes the liquid in the swollen oil pocket 4b of the swollen axle liquid of liquid, and then force the diameter on swollen axle 4 tops of liquid even under the effect of hydraulic coupling, increase regularly, force described drill holder 5 even, distending regularly finally carries out centralized positioning to the endoporus of workpiece G accurately.
The above only is preferred embodiment of the present utility model; not take the utility model as restriction; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. liquid expanding dish tooth gear hobbing tooling, comprise the positioning sleeve (1) that sets gradually from top to bottom, Connection Block (2) and base (3), this three's center line is on the same straight line, and adjacent both are fixed together by screw, it is characterized in that: the swollen axle (4) of liquid is housed in the centre bore of described Connection Block (2), the axial line of the swollen axle of this liquid and the center line of Connection Block (2) are on the same straight line, and the expand bottom of axle (4) periphery of liquid is provided with positive stop lug boss (4a), this positive stop lug boss (4a) is by the step surface of Connection Block (2) upper inside wall and the bottom surface axial limiting of described positioning sleeve (1), and the centre bore of described positioning sleeve (1) is stretched out in the upper end of the swollen axle (4) of liquid; Be set with drill holder (5) on swollen axle (4) top of described liquid, the bottom of this drill holder (5) is positioned at the centre bore of described positioning sleeve (1), and the centre bore of positioning sleeve (1) is stretched out on the top of drill holder (5);
The swollen axle push rod (6) of liquid is housed in the centre bore of described base (3), the axial line of the swollen axle push rod of this liquid and the center line of base (3) are on the same straight line, and the elongated rod shape section (6a) on swollen axle push rod (6) top of liquid is inserted in the swollen oil pocket (4b) of liquid at swollen axle (4) the lower central place of described liquid, and can move up and down in the swollen oil pocket (4b) of this liquid.
2. liquid expanding dish tooth gear hobbing tooling according to claim 1, it is characterized in that: extension bar (7) is housed in the centre bore of described base (3), the center line of the axial line of this extension bar and base (3) is on the same straight line, and the bottom of extension bar (7) is the section of stretching out of protuberate basic unit (3) centre bore; The center on described extension bar (7) top has circular cavity (7a), the path section (6b) of swollen axle push rod (6) bottom of described liquid is inserted in this circular cavity (7a), and this insertion end and circular cavity (7a) are threaded togather.
3. liquid expanding dish tooth gear hobbing tooling according to claim 2, it is characterized in that: the bottom of described extension bar (7) section of stretching out has external screw thread.
4. it is characterized in that according to claim 1 and 2 or 3 described liquid expanding dish tooth gear hobbing toolings: described positive stop lug boss (4a) is structure as a whole with the swollen axle (4) of liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220530600 CN202845958U (en) | 2012-10-17 | 2012-10-17 | Liquid expansion type plate gear hobbing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220530600 CN202845958U (en) | 2012-10-17 | 2012-10-17 | Liquid expansion type plate gear hobbing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202845958U true CN202845958U (en) | 2013-04-03 |
Family
ID=47977194
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220530600 Expired - Fee Related CN202845958U (en) | 2012-10-17 | 2012-10-17 | Liquid expansion type plate gear hobbing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202845958U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562837A (en) * | 2014-11-07 | 2016-05-11 | 綦江县飞达重型汽车齿轮厂 | Rotating and positioning type chamfer grinding device for gear tooth ends of gear |
| CN105618861A (en) * | 2014-11-07 | 2016-06-01 | 綦江县飞达重型汽车齿轮厂 | Stable clamping device for grinding end chamfer of gear tooth |
| CN108145255A (en) * | 2017-12-29 | 2018-06-12 | 重庆顺淮机械制造有限公司 | Gearburr removing mechanism |
| CN109794654A (en) * | 2019-03-04 | 2019-05-24 | 无锡市恒翼通机械有限公司 | The gear hobbing tooling of harmonic reducer flexible wheel |
-
2012
- 2012-10-17 CN CN 201220530600 patent/CN202845958U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105562837A (en) * | 2014-11-07 | 2016-05-11 | 綦江县飞达重型汽车齿轮厂 | Rotating and positioning type chamfer grinding device for gear tooth ends of gear |
| CN105618861A (en) * | 2014-11-07 | 2016-06-01 | 綦江县飞达重型汽车齿轮厂 | Stable clamping device for grinding end chamfer of gear tooth |
| CN108145255A (en) * | 2017-12-29 | 2018-06-12 | 重庆顺淮机械制造有限公司 | Gearburr removing mechanism |
| CN108145255B (en) * | 2017-12-29 | 2019-05-03 | 重庆顺淮机械制造有限公司 | Gearburr removing mechanism |
| CN109794654A (en) * | 2019-03-04 | 2019-05-24 | 无锡市恒翼通机械有限公司 | The gear hobbing tooling of harmonic reducer flexible wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20161017 |