CN103143793A - Hobbing fixture - Google Patents
Hobbing fixture Download PDFInfo
- Publication number
- CN103143793A CN103143793A CN2013101108803A CN201310110880A CN103143793A CN 103143793 A CN103143793 A CN 103143793A CN 2013101108803 A CN2013101108803 A CN 2013101108803A CN 201310110880 A CN201310110880 A CN 201310110880A CN 103143793 A CN103143793 A CN 103143793A
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- Prior art keywords
- sleeve
- mandrel
- resilient sleeve
- gear
- horn mouth
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Abstract
The invention discloses a hobbing fixture. The upper end part of a central spindle is a positioning guide part. The positioning guide part is sequentially and coaxially sleeved with two elastic sleeves, a pressing ring and a sleeve from bottom to top and the outer diameters of the elastic sleeves, the pressing ring and the sleeve are equal, wherein the top of the sleeve is closed; the center of the top of the sleeve is provided with a center hole; the peripheral wall of each elastic sleeve is provided with an axial groove; both upper and lower ends of an inner hole of each elastic sleeve are cone horn mouths; the upper end face of the pressing ring is a ring-shaped surface and the lower end face of the pressing ring is in fit with the cone horn mouths of the elastic sleeves; the central spindle between the two elastic sleeves is sleeved with a spacing ring; both upper and lower ends of the excircle surface of the spacing ring are respectively in fit with the corresponding cone horn mouths on the two elastic sleeves; the lower section of the positioning guide part of the central spindle is a cone section; and the cone section is in fit with the cone horn mouth at the lower end of the elastic sleeve below the cone section. According to the hobbing fixture, the inner hole wall of a tooth blank is positioned by the elastic sleeves; positioning accuracy is high; eccentricity can be well prevented; and the tooth blank is convenient to assemble and disassemble.
Description
Technical field
The invention belongs to the fixture field, specifically, relate in particular to a kind of gear-hobbing clamp for clamping, machining gears.
Background technology
As described in Figure 1, existing gear-hobbing clamp is nut compression type structure, specifically comprise mandrel 1, open washer 2 and nut 3, wherein the installation base 1a of mandrel 1 bottom fixes with gear-hobbing machine base Z by the screw 4 of axial setting, the upper end of this mandrel 1 is positioning and guiding section, after positioning and guiding section cover is loaded onto tooth base C to be processed, compressed by open washer 2 and nut 3, and the center of mandrel 1 upper surface has the center hole that matches with top D on gear-hobbing machine.In hobbing process, we find that there is following defective in existing fixture:
1, adopt the locate mode of shaft sleeve due to existing fixture, positioning accuracy is not high, eccentric situation easily occurs;
When 2, installing and removing tooth base C, need to adopt spanner tighten or unclamp described nut 3, waste time and energy, clamping efficient is low.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of gear-hobbing clamp, and wish guarantees clamping precision, and is convenient to simultaneously install and remove the tooth base.
Technical scheme of the present invention is as follows: a kind of gear-hobbing clamp, comprise mandrel (1), have vertically the screw via hole on the installation base (1a) of this mandrel bottom, and the upper end of mandrel (1) is positioning and guiding section, it is characterized in that: the positioning and guiding section of described mandrel (1) from the bottom up successively coaxial sleeve two resilient sleeve (5), a trim ring (6) and a sleeve (7) are housed, the external diameter of these three kinds of parts is identical, the top of its middle sleeve (7) is closed, and has the center hole that top with lathe (D) matches in the center at this top;
Have axial groove (5a) on the circle wall of described resilient sleeve (5), the upper and lower side of this resilient sleeve (5) endoporus is the conical horn mouth, and the structure of these two conical horn mouths is identical; The upper surface of described trim ring (6) is ring surface, the conical horn mouth of its lower surface and described resilient sleeve (5) adapts, and be set with a spacer ring (8) on the mandrel (1) between two resilient sleeve (5), the upper and lower side of this spacer ring periphery adapts with the upper corresponding conical horn mouth of two resilient sleeve (5) respectively, and the hypomere of mandrel (1) positioning and guiding section is conical section, and the conical horn mouth of this conical section and a following resilient sleeve (5) lower end adapts.
In above structure, resilient sleeve (5), trim ring (6) are identical with the external diameter of sleeve (7), and the external diameter of these three kinds of parts is than little 20 left and right, the aperture of tooth base (C) endoporus.
During clamping tooth base (C), first two tooth bases (C) are set in outside two resilient sleeve (5), secondly top on gear-hobbing machine (D) withstood the center hole of sleeve (7), and top on the control gear-hobbing machine (D) moves down, on gear-hobbing machine, top (D) drives two resilient sleeve (5) strain by sleeve (7) and trim ring (6) at this moment, thereby the outer wall by resilient sleeve (5) positions the inner hole wall of tooth base (C), in order to carry out gear hobbing processing.After processing tooth base (C), at first top on gear-hobbing machine (D) laid down, because resilient sleeve (5), trim ring (6) are identical with the external diameter of sleeve (7), and the external diameter of these three kinds of parts so just can directly take off the gear that obtains after processing than little 20 left and right, the aperture of tooth base (C) endoporus.
Adopt above technical scheme, this gear-hobbing clamp positions by the inner hole wall of resilient sleeve (5) to tooth base (C), positioning accuracy is high, can prevent well bias, and the mounting or dismounting of tooth base (C) are convenient, overcome well the defective of existing structure, had good practicality, be suitable for extensively promoting the use.
For the ease of discharging the air in described sleeve (7), guarantee successfully to carry out clamping, the special radially venthole (7a) that has in the upper end of described sleeve (7).
As preferably, the length of described sleeve (7) is 50 to 70mm.In above design, the length of described sleeve (7) can not be long, can not be too short, oversize words can affect the rigidity of sleeve (7), thereby cause easily distortion of sleeve (7), and then affect clamping precision, and too short words just cause position length to fall short of, and so also can affect clamping precision.
As optimization, described mandrel (1) upper surface is 8 to 10mm to the distance of sleeve (7) inner top surface.
As optimal design, the tapering of described resilient sleeve (5) conical horn mouth is 10 ° to 15 °.Equally, the tapering of described resilient sleeve (5) conical horn mouth can not be excessive, again can not be too small, and excessive words easily cause the deflection of resilient sleeve (5) excessive, thereby resilient sleeve (5) is swollen bad, and self-locking easily occurs again in too small words.
Beneficial effect: this gear-hobbing clamp positions by the inner hole wall of resilient sleeve (5) to tooth base (C), and positioning accuracy is high, can prevent well bias, and the mounting or dismounting of tooth base (C) are convenient, overcome well the defective of existing structure, had good practicality, be suitable for extensively promoting the use.
Description of drawings
Fig. 1 is the structural representation of existing fixture;
Fig. 2 is structural representation of the present invention.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples:
As shown in Figure 2, a kind of gear-hobbing clamp mainly is made of mandrel 1, resilient sleeve 5, trim ring 6, sleeve 7 and spacer ring 8.Wherein the bottom of mandrel 1 is installation base 1a, has vertically the screw via hole on this installation base 1a, and screw 4 is screwed on gear-hobbing machine base Z after passing this screw via hole, thereby mandrel 1 is fixed on gear-hobbing machine base Z.The upper end of described mandrel 1 is positioning and guiding section, this positioning and guiding section from the bottom up successively coaxial sleeve two resilient sleeve 5, a trim ring 6 and a sleeve 7 are housed.Wherein, the top of described sleeve 7 is closed, and has the center hole that matches with the top D of lathe in the center at this top, and the upper end of sleeve 7 has radially venthole 7a.In addition, described resilient sleeve 5, trim ring 6 are identical with the external diameter of sleeve 7, and the external diameter of these three kinds of parts is than little 20 left and right, the aperture of tooth base C endoporus.
The structure of described resilient sleeve 5 is basic identical with the existing resilient sleeve that extensively adopts, have one group of axial groove 5a on the circle wall of resilient sleeve 5, this axial groove 5a runs through the inner and outer wall of resilient sleeve 5, but another end face of the bottom land of axial groove 5a and resilient sleeve 5 has certain distance.And the upper and lower side of resilient sleeve 5 endoporus is the conical horn mouth, and the structure of these two conical horn mouths is identical, and the tapering of this conical horn mouth is preferably 10 ° to 15 °, and can be more preferably 13 °.
As can be seen from Figure 2, the upper surface of described trim ring 6 is ring surface, and its lower surface adapts and coordinates with the conical horn mouth of described resilient sleeve 5.Be set with a spacer ring 8 on the mandrel 1 between above-mentioned two resilient sleeve 5, the conical horn mouth of the upper end of these spacer ring 8 peripheries and top resilient sleeve 5 lower ends adapts, and the conical horn mouth of the lower end of spacer ring 8 peripheries and following resilient sleeve 5 upper ends adapts.And the hypomere of described mandrel 1 positioning and guiding section is conical section, and the conical horn mouth of this conical section and following resilient sleeve 5 lower ends adapts.
In addition, the length of described sleeve 7 is 50 to 70mm, and described mandrel 1 upper surface is 8 to 10mm to the distance of sleeve 7 inner top surfaces.
The operation principle of this gear-hobbing clamp is as follows:
During clamping tooth base C, first two tooth base C are set in outside two resilient sleeve 5, secondly top D on gear-hobbing machine is withstood the center hole of sleeve 7, and on the control gear-hobbing machine, top D moves down, on gear-hobbing machine, top D drives two resilient sleeve 5 strains by sleeve 7 and trim ring 6 at this moment, thereby the outer wall by resilient sleeve 5 positions the inner hole wall of tooth base C, in order to carry out gear hobbing processing.After processing tooth base C, at first top D on gear-hobbing machine is laid down, the gear that will obtain after then directly processing takes off.
The above is only preferred embodiment of the present invention, not take the present invention as restriction, all any modifications of doing within the spirit and principles in the present invention, is equal to and replaces and improvement etc., within all should being included in protection scope of the present invention.
Claims (5)
1. gear-hobbing clamp, comprise mandrel (1), have vertically the screw via hole on the installation base (1a) of this mandrel bottom, and the upper end of mandrel (1) is positioning and guiding section, it is characterized in that: the positioning and guiding section of described mandrel (1) from the bottom up successively coaxial sleeve two resilient sleeve (5), a trim ring (6) and a sleeve (7) are housed, the external diameter of these three kinds of parts is identical, the top of its middle sleeve (7) is closed, and has the center hole that top with lathe (D) matches in the center at this top;
Have axial groove (5a) on the circle wall of described resilient sleeve (5), the upper and lower side of this resilient sleeve (5) endoporus is the conical horn mouth, and the structure of these two conical horn mouths is identical; The upper surface of described trim ring (6) is ring surface, the conical horn mouth of its lower surface and described resilient sleeve (5) adapts, and be set with a spacer ring (8) on the mandrel (1) between two resilient sleeve (5), the upper and lower side of this spacer ring periphery adapts with the upper corresponding conical horn mouth of two resilient sleeve (5) respectively, and the hypomere of mandrel (1) positioning and guiding section is conical section, and the conical horn mouth of this conical section and a following resilient sleeve (5) lower end adapts.
2. gear-hobbing clamp according to claim 1, it is characterized in that: the upper end of described sleeve (7) has radially venthole (7a).
3. gear-hobbing clamp according to claim 1 and 2 is characterized in that: the length of described sleeve (7) is 50 to 70mm.
4. gear-hobbing clamp according to claim 3 is characterized in that: described mandrel (1) upper surface is 8 to 10mm to the distance of sleeve (7) inner top surface.
5. gear-hobbing clamp according to claim 1, it is characterized in that: the tapering of described resilient sleeve (5) conical horn mouth is 10 ° to 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101108803A CN103143793A (en) | 2013-04-01 | 2013-04-01 | Hobbing fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101108803A CN103143793A (en) | 2013-04-01 | 2013-04-01 | Hobbing fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103143793A true CN103143793A (en) | 2013-06-12 |
Family
ID=48542262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101108803A Pending CN103143793A (en) | 2013-04-01 | 2013-04-01 | Hobbing fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103143793A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109986141A (en) * | 2019-04-29 | 2019-07-09 | 江苏双环齿轮有限公司 | A kind of quick-replaceable gear-hobbing clamp |
| CN112935422A (en) * | 2021-02-04 | 2021-06-11 | 台州格凌机械股份有限公司 | Gear turning machine and mounting fixture thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2749616Y (en) * | 2004-11-19 | 2006-01-04 | 上海交运汽车动力系统有限公司 | Gear hobbing clamp for clutch spindle |
| CN201389699Y (en) * | 2009-03-26 | 2010-01-27 | 中国重汽集团济南动力有限公司 | Novel hobbing gripper |
| CN201516523U (en) * | 2009-07-23 | 2010-06-30 | 安徽星瑞齿轮传动有限公司 | Clamping fixture for shaving gears by elastically pressing and centring |
| CN201596820U (en) * | 2010-02-04 | 2010-10-06 | 唐山通力齿轮有限公司 | Two-cone expandable shaving gripper |
| CN202169422U (en) * | 2011-07-20 | 2012-03-21 | 重庆秋田齿轮有限责任公司 | Gear shaving clamp |
| CN203197408U (en) * | 2013-04-01 | 2013-09-18 | 重庆永达精密机械有限公司 | Hobbing fixture |
-
2013
- 2013-04-01 CN CN2013101108803A patent/CN103143793A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2749616Y (en) * | 2004-11-19 | 2006-01-04 | 上海交运汽车动力系统有限公司 | Gear hobbing clamp for clutch spindle |
| CN201389699Y (en) * | 2009-03-26 | 2010-01-27 | 中国重汽集团济南动力有限公司 | Novel hobbing gripper |
| CN201516523U (en) * | 2009-07-23 | 2010-06-30 | 安徽星瑞齿轮传动有限公司 | Clamping fixture for shaving gears by elastically pressing and centring |
| CN201596820U (en) * | 2010-02-04 | 2010-10-06 | 唐山通力齿轮有限公司 | Two-cone expandable shaving gripper |
| CN202169422U (en) * | 2011-07-20 | 2012-03-21 | 重庆秋田齿轮有限责任公司 | Gear shaving clamp |
| CN203197408U (en) * | 2013-04-01 | 2013-09-18 | 重庆永达精密机械有限公司 | Hobbing fixture |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109986141A (en) * | 2019-04-29 | 2019-07-09 | 江苏双环齿轮有限公司 | A kind of quick-replaceable gear-hobbing clamp |
| CN112935422A (en) * | 2021-02-04 | 2021-06-11 | 台州格凌机械股份有限公司 | Gear turning machine and mounting fixture thereof |
| CN112935422B (en) * | 2021-02-04 | 2022-07-26 | 台州格凌机械股份有限公司 | Gear turning machine and mounting fixture thereof |
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| PB01 | Publication | ||
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Application publication date: 20130612 |