CN104864800A - Hobbing cutter front angle detector and usage method - Google Patents
Hobbing cutter front angle detector and usage method Download PDFInfo
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- CN104864800A CN104864800A CN201510272880.2A CN201510272880A CN104864800A CN 104864800 A CN104864800 A CN 104864800A CN 201510272880 A CN201510272880 A CN 201510272880A CN 104864800 A CN104864800 A CN 104864800A
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- block
- angle
- hobboing cutter
- substrate
- fastening bolt
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Abstract
The invention discloses a hobbing cutter front angle detector comprising a substrate, a support piece, an angle adjusting piece, a detection auxiliary piece, and a plurality of locking bolts; the substrate is provided with a platform and a reference plane having a first mounting hole; a side face of the support piece is provided with a second mounting hole and a connecting hole; the support piece is fixed on the reference plane through the locking bolt; an end face of the support piece is provided with a third mounting hole; the angle adjusting piece is provided with a slide slot, and fixed on the end face of the support piece through the locking bolt; the detection auxiliary piece is provided with a fourth mounting hole, and fixed on the substrate through the locking bolt; a detection face of the detection auxiliary piece is parallel to the reference plane. An angle between the auxiliary piece and the support piece is an angle between a front tool face of one tooth of the hobbing cutter and a hobbing cutter radial face, i.e., the front angle of the hobbing cutter; a universal bevel protractor can measure the front angle of the hobbing cutter, and no more measuring instrument is needed; the hobbing cutter front angle detector is simple in operation, and high in direct precision of a detection result.
Description
Technical field
The invention belongs to the technical field of the metering outfit adopting mechanical means to be feature.
Background technology
Hobboing cutter is a kind of cutter by cross helical gear theory of engagement processing straight-tooth and helical gears, for pressing generating method processing circle post tooth wheel ﹑ worm gear and other cylindrical toothed workpiece.Add man-hour, hobboing cutter is equivalent to the very large cross helical gear of a helix angle, its number of teeth is the head number of hobboing cutter, workpiece is equivalent to another cross helical gear, each other according to a pair helical tooth crop rotation spatial conjugate, rotate with fixing speed ratio, become tooth-formation of gear by the cutter tooth profile of tooth envelope of each adjacent position of cutting successively.Hobboing cutter is provided with endoporus, and endoporus is to coordinate with rotation axis.
The anterior angle of hobboing cutter refers to the angle between rake face and basal plane measured in hobboing cutter orthogonal plane, and anterior angle angle is counterclockwise close to basal plane from rake face is just, otherwise is negative.Anterior angle is larger, and cutter is sharper, cut more laborsaving, but intensity also decreases, and easily produce and collapse cutter, the hobboing cutter cutting pinion that anterior angle is born partially is very difficult, and hobboing cutter damages very fast, the tooth-face roughness extreme difference after processing, and production efficiency is difficult to improve.Therefore anterior angle is a very important index concerning hobboing cutter, needs to choose suitable anterior angle before hobboing cutter is processed.
The general anterior angle adopting deflection instrument to measure hobboing cutter now, concrete grammar adopts fastening nuts after hobboing cutter is loaded axle, hobboing cutter is placed on deflection instrument by the center pit Double Tops at axle two ends, detected by bar thick stick dial gauge and feeler gauge, then according to the anterior angle actual value of the high mathematic interpolation hobboing cutter in front angular variation deflection instrument center.Adopt such method to measure the anterior angle of hobboing cutter comparatively complicated, at least need 20 minutes, hobboing cutter modulus larger operator labour intensity is larger, and cause the anterior angle adopting deflection instrument to measure hobboing cutter to expend time in length, measurement efficiency is low.
Summary of the invention
The invention provides a kind of hobboing cutter anterior angle detector and using method, more to solve with the anterior angle equipment needed thereby of deflection instrument measurement hobboing cutter, measuring process is comparatively complicated, the inefficient problem of measurement.
In order to solve the problems of the technologies described above, the invention provides following technical scheme: a kind of hobboing cutter anterior angle detector, comprise substrate, back-up block, angle-regulating block, detection auxiliary block, the first fastening bolt, the second fastening bolt and the 3rd fastening bolt, substrate is provided with the boss mated with hobboing cutter endoporus, substrate has reference plane along the radial direction of boss, and reference plane is provided with the first mounting hole; The side of back-up block has the second mounting hole and connecting hole, the first fastening bolt is through the first mounting hole and the second mounting hole, and back-up block is fixed on reference plane by the first fastening bolt, the end face of back-up block has the 3rd mounting hole; Angle-regulating block has chute, and the second fastening bolt is through the 3rd mounting hole and chute, and angle-regulating block is fixed on the end face of back-up block by the second fastening bolt; Detect in auxiliary block and have the 4th mounting hole, the 3rd fastening bolt is through connecting hole and the 4th mounting hole, and detect auxiliary block and be fixed on substrate by the 3rd fastening bolt, the detection faces detecting auxiliary block is parallel with reference plane.
Principle of the present invention is: with the end face of hobboing cutter for plane is analyzed, back-up block is be the radial line of dispersing with the center of hobboing cutter, and the tooth that back-up block is crossed on hobboing cutter is tangent, angle-regulating block overlaps with the lip surface of a hobboing cutter tooth, detect auxiliary block parallel with radial line, so angle-regulating block and the angle detected between auxiliary block are the anterior angle of hobboing cutter.
Herein, the opposite face near hobboing cutter end face on substrate is referred to outside substrate; The detection faces detecting auxiliary block refers to the opposite face detected near back-up block in auxiliary block.
Compared with prior art, the invention has the advantages that: 1, substrate be provided with boss be in order to by substrate orientation on hobboing cutter end face; Substrate is provided with reference plane, and this reference plane is along the radial direction of hobboing cutter.2, the lip surface being connected to back-up block on reference plane and a hobboing cutter tooth offsets, back-up block along hobboing cutter radial direction and offset with the lip surface of the above-mentioned tooth of hobboing cutter.3, the lip surface that the angle-regulating block on back-up block end face is adjustable to the above-mentioned tooth with hobboing cutter is fitted; 4, detect the detection faces of auxiliary block parallel with reference plane, the detection faces detecting auxiliary block is plane, is convenient to fit with the measuring surface of angle measurement tool, ensure that detection auxiliary block as benchmark parallel with back-up block and crossing with angle-regulating block be an angle.The angle detecting auxiliary block and back-up block is the lip surface of a hobboing cutter tooth and the angle of hobboing cutter sagittal plane, the i.e. anterior angle of hobboing cutter, the anterior angle of hobboing cutter only need can be measured by angle measurement tool, do not need more surveying instrument, easy and simple to handle, each Measuring Time only use about 5 minutes, testing result precision directly perceived is high, efficiency is much higher than the anterior angle adopting deflection instrument to measure hobboing cutter.
Further, described substrate, along boss rotational symmetry, substrate just has multiple reference plane for use.
Further, the reference plane of described substrate is provided with several first mounting hole, can according to the position of the radial dimension adjustment back-up block of hobboing cutter.
Further, described connecting hole is two groups, one group of connecting hole detection auxiliary block is stretched out end face that back-up block is provided with angle-regulating block; Another group connecting hole makes detection auxiliary block be positioned at directly over back-up block.
A using method for hobboing cutter anterior angle detector, is characterized in that comprising the following steps:
A, back-up block is fixed on the reference plane of substrate by the first fastening bolt, detection auxiliary block is fixed on back-up block by connecting hole, makes detection auxiliary block be positioned at directly over back-up block;
B, inserted by the boss of substrate in the endoporus of hobboing cutter, and rotational substrate, makes the lip surface of back-up block and a hobboing cutter tooth offset;
C, be fixed on the end face of back-up block by angle-regulating block by the second fastening bolt, the lip surface of angle-regulating block and the above-mentioned tooth of hobboing cutter is fitted;
D, boss is exited the endoporus of hobboing cutter, substrate, back-up block, angle-regulating block, detection auxiliary block are taken out from hobboing cutter;
E, detection auxiliary block to be drawn off from above-mentioned connecting hole, detection auxiliary block is fixed on back-up block by another connecting hole, detection auxiliary block is stretched out end face that back-up block is provided with angle-regulating block;
F, the angle taken measurement of an angle between regulating block and detection auxiliary block with angle measurement tool.
The detection faces detecting auxiliary block is parallel with reference plane, and the lip surface of angle-regulating block and hobboing cutter tooth is fitted.When angle-regulating block is not fitted with the lip surface of hobboing cutter, detect auxiliary block and do not stretch out back-up block, be block angle-regulating block to prevent detecting auxiliary block, and detect auxiliary block and be connected on back-up block, not easily occur to lose and lose.When the lip surface of angle-regulating block and hobboing cutter is fitted, detection auxiliary block being stretched out back-up block, is extend to detect auxiliary block, facilitates angle measurement tool to take measurement of an angle regulating block and the angle that detects between auxiliary block.
Further, described back-up block away from one end of angle-regulating block be provided with can with the block that offsets outside substrate, before back-up block is fixed on reference plane, block is pushed into substrate outside offset.
Further, in step F, angle measurement tool is universal protractor.A kind of angle measuring tool that universal protractor utilizes vernier reading principle to come direct measuring workpieces angle or carry out to rule, easy to use, accuracy of reading.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, technical solution of the present invention is further illustrated:
Fig. 1 is the structural representation of hobboing cutter anterior angle detector embodiment of the present invention.
Fig. 2 is hobboing cutter anterior angle detector of the present invention coordinates embodiment structural representation with hobboing cutter.
Fig. 3 is the partial enlarged drawing that in Fig. 2, hobboing cutter anterior angle detector coordinates with hobboing cutter.
Fig. 4 is that hobboing cutter anterior angle detector of the present invention measures the front elevation of embodiment by universal protractor.
Fig. 5 is that hobboing cutter anterior angle detector of the present invention measures the structural representation of embodiment by universal protractor.
Embodiment
Reference numeral in Figure of description comprises: substrate 1, back-up block 2, angle-regulating block 3, detection auxiliary block 4, annular boss 5, reference plane 6, block 7, universal protractor 8, hobboing cutter 9, connecting hole 10.
As shown in Figure 1, a kind of hobboing cutter anterior angle detector in the present embodiment, comprises substrate 1, back-up block 2, angle-regulating block 3, detects auxiliary block 4, first fastening bolt, the second fastening bolt and the 3rd fastening bolt.
Substrate 1 is one along the butterfly plate of center line symmetry, and the middle part of substrate 1 is provided with the annular boss 5 mated with hobboing cutter 9 endoporus, and substrate 1 crosses the two sides of annular boss 5 for being reference plane 6, and a reference plane 6 is provided with seven the first mounting holes.
Back-up block 2 is provided with a block 7, this block 7 is L-shaped with back-up block 2, the side of back-up block 2 has the second mounting hole and four connecting hole 10, first fastening bolts through the first mounting hole and the second mounting hole, back-up block 2 is fixed on reference plane 6 by the first fastening bolt.Four connecting holes 10 one group between two, one group away from block 7, another group is near block 7.Back-up block 2 one end away from block 7 has the 3rd mounting hole.
Angle-regulating block 3 has chute, and the second fastening bolt is through the 3rd mounting hole and chute, and angle-regulating block 3 is fixed on the end face of back-up block 2 by the second fastening bolt.
Detect auxiliary block 4 also L-shaped, detect in auxiliary block 4 and have the 4th mounting hole, the 3rd fastening bolt, through connecting hole 10 and the 4th mounting hole, detects auxiliary block 4 fixing on substrate 1 by the 3rd fastening bolt.When the 4th mounting hole communicates with that group connecting hole 10 away from block 7, detect auxiliary block 4 and stretch out back-up block 2 and angle-regulating block 3, when the 4th mounting hole communicates with that group connecting hole 10 near block 7, detect auxiliary block 4 and do not stretch out back-up block 2.The detection faces (upper side) detecting auxiliary block 4 is the plane that a precision is higher.
As shown in Figures 2 and 3, the using method of this structure is as follows:
A, back-up block 2 block 7 is pushed into substrate 1 outside offset, back-up block 2 being fixed on by the first fastening bolt on the reference plane 6 on substrate 1 left side, being connected detecting auxiliary block 4 with substrate 1 by that group connecting hole 10 near block 7.
B, inserted by the boss of substrate 1 in the endoporus of hobboing cutter 9, and rotational substrate 1, makes back-up block 2 offset with the lip surface of the tooth in hobboing cutter 9 left side.
C, angle-regulating block 3 to be fixed on by the second fastening bolt on the end face of back-up block 2, angle-regulating block 3 is fitted with the lip surface of the above-mentioned tooth of hobboing cutter 9, angle-regulating block 3 left end (by hobboing cutter 9 outer end) is high, and right-hand member is low be positive rake angle hobboing cutter 9 is positive rake angle, and the low hobboing cutter 9 of left end height right-hand member is negative rake.It should be noted that when measuring hobboing cutter 9 positive rake angle, hobboing cutter 9 lip surface point of a knife will in back-up block 2 effectively detection plane position, otherwise hobboing cutter 9 anterior angle can produce measuring error.
D, boss is exited the endoporus of hobboing cutter 9, by substrate 1, back-up block 2, angle-regulating block 3, detect auxiliary block 4 and take out from hobboing cutter 9.
E, by detect auxiliary block 4 near block 7 that group connecting hole 10 draw off, mobility detect auxiliary block 4, being fixed on detecting auxiliary block 4 on back-up block 2 by that group connecting hole 10 away from block 7, making detection auxiliary block 4 stretch out back-up block 2 and angle-regulating block 3.
F, as shown in Figure 4 and Figure 5, to take measurement of an angle regulating block 3 and the angle that detects between auxiliary block 4 with universal protractor 8, this angle is exactly the actual positive rake angle of hobboing cutter 9.
Hobboing cutter 9 negative rake measures the angle (α detecting auxiliary block 4 and angle stick by universal protractor 8,) be easy to judge, but the actual negative anterior angle α of hobboing cutter 9, equal back-up block 2 and the length L of hobboing cutter 9 anterior angle phase tangent line to hobboing cutter 9 point of a knife and the ratio of hobboing cutter 9 radius R, take advantage of α, and then deduct α.Below lift two examples to illustrate:
Known: ° hobboing cutter 9 radius R=170, hobboing cutter 9 true rake=-3
Point of a knife is to back-up block 2 effective length L1=48 L2=38 α 1=4.17898 ° of α 2=3.86284 °
Example one negative rake α 1=(L1 ÷ R) × α 1-α 1=(48 ÷ 170) × 4.17898 ° of-4.17898 ° of ≈-2.999033 °
Example two negative rake α 2=(L2 ÷ R) × α 2-α 2=(38 ÷ 170) × 3.86284 ° of-3.86284 ° of ≈-2.999382 °
As can be seen from above two examples, by surveying and calculating, the actual error value of anterior angle is very little.
When in actual production, hobboing cutter 9 anterior angle is negative rake, cutting force is large, surfaceness is very poor, hobboing cutter 9 very easily damages, so the design of hobboing cutter 9 anterior angle and sharpening will be equal to or greater than zero anterior angle, if hobboing cutter 9 is negative rake after measuring, universal protractor need not be used to measure, should directly send hobboing cutter blade milling machine to reprocess.
The simple low cost of this structure lightweight, easy and simple to handle each time only use about 5 minutes, testing result precision directly perceived is high.
For a person skilled in the art, under the prerequisite not departing from structure of the present invention, can also make some distortion and improvement, these also should be considered as protection scope of the present invention, and these all can not affect effect of the invention process and practical applicability.
Claims (8)
1. a hobboing cutter anterior angle detector, it is characterized in that: comprise substrate, back-up block, angle-regulating block, detection auxiliary block, the first fastening bolt, the second fastening bolt and the 3rd fastening bolt, substrate is provided with the boss mated with hobboing cutter endoporus, substrate has reference plane along the radial direction of boss, and reference plane is provided with the first mounting hole; The side of back-up block has the second mounting hole and connecting hole, the first fastening bolt is through the first mounting hole and the second mounting hole, and back-up block is fixed on reference plane by the first fastening bolt, the end face of back-up block has the 3rd mounting hole; Angle-regulating block has chute, and the second fastening bolt is through the 3rd mounting hole and chute, and angle-regulating block is fixed on the end face of back-up block by the second fastening bolt; Detect in auxiliary block and have the 4th mounting hole, the 3rd fastening bolt is through connecting hole and the 4th mounting hole, and detect auxiliary block and be fixed on substrate by the 3rd fastening bolt, the detection faces detecting auxiliary block is parallel with reference plane.
2. hobboing cutter anterior angle detector as claimed in claim 1, is characterized in that: described substrate is along boss rotational symmetry.
3. hobboing cutter anterior angle detector as claimed in claim 2, is characterized in that: the reference plane of described substrate is provided with several first mounting hole.
4. hobboing cutter anterior angle detector as claimed in claim 3, is characterized in that: described connecting hole is two groups, one group of connecting hole detection auxiliary block is stretched out end face that back-up block is provided with angle-regulating block; Another group connecting hole makes detection auxiliary block be positioned at directly over back-up block.
5. hobboing cutter anterior angle detector as claimed in claim 3, is characterized in that: described back-up block away from one end of angle-regulating block be provided with can with the block that offsets outside substrate.
6. one kind uses the method for hobboing cutter anterior angle detector as claimed in claim 4, it is characterized in that comprising the following steps: A, back-up block is fixed on the reference plane of substrate by the first fastening bolt, detection auxiliary block is fixed on back-up block by connecting hole, makes detection auxiliary block be positioned at directly over back-up block;
B, inserted by the boss of substrate in the endoporus of hobboing cutter, and rotational substrate, makes the lip surface of back-up block and a hobboing cutter tooth offset;
C, be fixed on the end face of back-up block by angle-regulating block by the second fastening bolt, the lip surface of angle-regulating block and the above-mentioned tooth of hobboing cutter is fitted;
D, boss is exited the endoporus of hobboing cutter, substrate, back-up block, angle-regulating block, detection auxiliary block are taken out from hobboing cutter;
E, detection auxiliary block to be drawn off from above-mentioned connecting hole, detection auxiliary block is fixed on back-up block by another connecting hole, detection auxiliary block is stretched out end face that back-up block is provided with angle-regulating block;
F, the angle taken measurement of an angle between regulating block and detection auxiliary block with angle measurement tool.
7. a using method for hobboing cutter anterior angle detector as claimed in claim 6, is characterized in that: before described steps A, back-up block away from one end of angle-regulating block is installed can with the block that offsets outside substrate, block is pushed into substrate outside offset.
8. a using method for hobboing cutter anterior angle detector as claimed in claim 6, is characterized in that: in step F, and angle measurement tool is universal protractor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510272880.2A CN104864800B (en) | 2015-05-26 | 2015-05-26 | Hobboing cutter anterior angle detector and application method |
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| CN201510272880.2A CN104864800B (en) | 2015-05-26 | 2015-05-26 | Hobboing cutter anterior angle detector and application method |
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| CN104864800B CN104864800B (en) | 2018-11-09 |
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Cited By (3)
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| CN105486260A (en) * | 2016-01-21 | 2016-04-13 | 核工业理化工程研究院 | Installing fixture used for three-coordinate measurement of long cylindrical workpieces |
| CN109059738A (en) * | 2018-11-02 | 2018-12-21 | 马格澳迈塑料机械（上海）有限公司 | Measure the measurer of hobboing cutter gear hobbing anterior angle and the method with the gage measuring gear hobbing anterior angle |
| CN113532224A (en) * | 2021-09-15 | 2021-10-22 | 中车戚墅堰机车车辆工艺研究所有限公司 | Hob front cutter face detection method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105486260A (en) * | 2016-01-21 | 2016-04-13 | 核工业理化工程研究院 | Installing fixture used for three-coordinate measurement of long cylindrical workpieces |
| CN109059738A (en) * | 2018-11-02 | 2018-12-21 | 马格澳迈塑料机械（上海）有限公司 | Measure the measurer of hobboing cutter gear hobbing anterior angle and the method with the gage measuring gear hobbing anterior angle |
| CN113532224A (en) * | 2021-09-15 | 2021-10-22 | 中车戚墅堰机车车辆工艺研究所有限公司 | Hob front cutter face detection method |
| CN113532224B (en) * | 2021-09-15 | 2021-11-23 | 中车戚墅堰机车车辆工艺研究所有限公司 | Hob front cutter face detection method |
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