CN208289148U - A kind of spiral bevel gear gear grinding clamp - Google Patents
A kind of spiral bevel gear gear grinding clamp Download PDFInfo
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- CN208289148U CN208289148U CN201820879069.XU CN201820879069U CN208289148U CN 208289148 U CN208289148 U CN 208289148U CN 201820879069 U CN201820879069 U CN 201820879069U CN 208289148 U CN208289148 U CN 208289148U
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- ontology
- bevel gear
- pressing plate
- butterfly spring
- spiral bevel
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Abstract
The utility model discloses a kind of spiral bevel gear gear grinding clamp, belongs to special vehicle transmission system key part spiral bevel gear processing and manufacturing field, which is applied to the crucial transmission device such as engine, gearbox, transmission case, differential mechanism.The gear grinding clamp can satisfy processing precision of products requirement, which includes pressing plate, butterfly spring ringfeder, positioning disk, ontology, extension bar；Using flexibly positioned principle, when butterfly spring ringfeder works, axial compressive force is applied by pull rod, butterfly spring ringfeder fits closely under the action of radial expanding force with workpiece, realizes gapless positioning, and positioning accuracy is high；The scalability of butterfly spring ringfeder considerably increases the assembling capacity of part.The structure positioning mode is dismantled part and is more convenient, and realizes quick-changing type clamping, while avoiding the Fast Wearing of location hole, greatly improves Set and Positioning precision and efficiency, improves product quality and qualification rate, reduces costs.
Description
Technical field
The utility model belongs to special vehicle transmission system key part processing and manufacturing field, is related to a kind of spiral bevel gear
Gear grinding clamp structure.
Background technique
Design, manufacture and the installation accuracy of high-precision spiral bevel gear gear grinding clamp are to ensure that the pass of product quality and efficiency
One of key link.Traditional axis hole prepares conjunction positioning device gap and is not easy to eliminate, and positioning accuracy is not high (being greater than 0.01mm), serious shadow
Ring Gear Processing precision；There are certain manufacturing tolerance when processing when clamping because of bevel gear positioning shaft hole, when installation, is fixed with tooling
Position peg-in-hole assembly is difficult, is not easy clamping, it is often necessary to apply biggish external force and tap, cause mating surface Fast Wearing.It improves
The precision of gear must just improve Fixture Design and manufacture level, while ensure installation accuracy.
It is the common technology problem of domestic manufacturing that spiral bevel gear positioning accuracy is not high, in order to improve positioning accuracy,
Import technological equipment is relied on for a long time, and cost is high, the order cycle time is long, constrains the development of bevel gear manufacturing technology.U.S.'s lattice
The swelling mould precision that Li Sen company provides is high, structure is complicated, price is high, delivery cycle is long (4-6 months), seriously constrains new
The matched requirement of product short cycle.For this purpose, actual measurement, and the external advanced Fixture Design of reference have been carried out to machine tool,
In conjunction with practical manufacture level, final design produces qualified tooling.
Low positioning accuracy is to lead to the underproof key factor of spiral bevel gear precision index, Set and Positioning inefficient one
It has been also the key technology bottleneck for influencing production efficiency since straight.
Utility model content
The technical issues of the utility model solves is to provide a kind of spiral bevel gear gear grinding clamp, provides spiral bevel gear
Positioning accuracy and Set and Positioning efficiency.In particular, the utility model is directed to the spiral bevel gear of 7 grades or more precision, and it is fixed to improve
Position precision and efficiency, Improving The Quality of Products.
In order to solve the above technical problems, the technical solution of the utility model is, and a kind of spiral bevel gear gear grinding clamp, packet
Include pressing plate, butterfly spring ringfeder, positioning disk, ontology, extension bar；It further include straight pin, holding screw, the first screw, the second screw；
The pressing plate longitudinal section is T-type structure, and top is disk, and disk lower part is rod-shaped；The disk of pressing plate is used to compress butterfly spring
Ringfeder；The butterfly spring ringfeder is located between the disk lower end of pressing plate and the upper end ladder table top of ontology；Butterfly spring ringfeder
For butterfly spring, the multiple radial opening slots of circumference, an open slot is used for across straight pin, and positioning is inserted into simultaneously in straight pin lower end
In disk, for limiting the relative rotation of butterfly spring ringfeder and positioning disk；The ontology upper end has forge piece of step type structure, stepped
The boss that structure is formed covers in butterfly spring ringfeder centre bore；The lower part of pressing plate passes through the centre bore of ontology；Pressing plate tail end with
Extension bar connection；Wherein extension bar tail end is connect with lathe pull rod, can pull extension bar；It is fixed using holding screw between pressing plate and ontology
Position；Holding screw passes through in the slot of ontology insertion pressing plate periphery, limits the relative rotation of pressing plate and ontology；The length of the slot of periphery
Greater than the head sizes of holding screw insertion, pressing plate can be moved up and down；The positioning disk sleeve passes through second in the periphery of ontology
Screw and ontology fasten；The ontology lower end has ladder table top, and periphery is up big and down small taper under the ladder table top of lower end
Structure, insertion and tapered bore of machine tool spindle；The cooperation of the lower end ladder table top of lathe table top and ontology；Lower end ladder table top and lathe
Table top is fixed by the first screw.
Preferably, the end face run-out of the ladder platform terrace of the forge piece of step type structure of ontology upper end is less than 0.005mm, step type knot
The circular runout of the boss periphery of structure is less than 0.005mm；The stair-step surface roughness of forge piece of step type structure reaches 0.4 μm.
It preferably, further include jackscrew, briquetting；The screw thread that wherein jackscrew and briquetting are installed on the lower end step end face of ontology leads to
Kong Zhong；The axis of tapped through hole is vertical with lathe table top.
It preferably, further include calibration component, calibration component is used to calibrate the tensioner degree and installation accuracy of butterfly spring ringfeder,
The location dimension of its center positioning hole is identical as bevel gear centre bore location dimension used in gear grinding clamp, makes the mistake of calibration component
Journey are as follows: calibration component center positioning hole and butterfly spring ringfeder major diameter fit apply axial force and tense pressing plate, and detection butterfly spring rises
After the tensioner degree and installation accuracy of set, tensioner degree and installation accuracy reach requirement, carry out and gear grinding clamp cooperation
The roll flute process of bevel gear is processed.
Preferably, positioning disk upper and lower end faces bounce is less than 0.005mm.
Preferably, butterfly spring ringfeder is in addition to the open slot of installation straight pin, filled rubber in other open slots.
A kind of working principle of spiral bevel gear gear grinding clamp of the utility model is: by lathe pull rod to gear grinding clamp
Transmit axial force, make pressing plate compress butterfly spring, spring ringfeder spreading is in running order, under the action of radial expanding force with
Workpiece fits closely, and realizes gapless positioning；When completing processing, after unloading axial force, spring ringfeder is shunk, i.e., and detachable zero
Part is positioned compared to original shaft hole matching, and disassembly part is more convenient, so that process is stablized, processing efficiency and precision are improved.
Using flexibly positioned principle, when butterfly spring ringfeder works, axial compressive force, butterfly spring ringfeder are applied by pull rod
It is fitted closely under the action of radial expanding force with workpiece, realizes gapless positioning, positioning accuracy can achieve 0.005mm；Together
When spring ringfeder scalability considerably increase the assembling capacity of part.It is more square that ringfeder tightening structure positioning method dismantles part
Just, quick-changing type clamping is realized, while avoiding the Fast Wearing of location hole, greatly improves Set and Positioning precision and efficiency,
It improves product quality and qualification rate, reduce costs.
Compared with prior art, it is fixed to improve clamping for a kind of spiral bevel gear gear grinding clamp provided by the utility model
Position design structure is prepared by the axis hole of the gear grinding clamp of the prior art and closes the accurate expansion sleeve type gapless for being improved to the utility model
Cooperation, clamping force is big, positioning accuracy is high, substantially increases positioning accuracy and high-precision bevel gear processing quality；Ringfeder tenses knot
Structure positioning is more convenient compared to original shaft hole matching positioning tool disassembly part, realizes quick-changing type clamping, while avoiding and determining
The Fast Wearing in position hole, the service life is longer；Solve high-precision spiral bevel gear gear grinding clamp for a long time to import according to
Rely, shorten the lead time of product, improves technological equipment level.
Detailed description of the invention
Fig. 1 is the gear grinding clamp structure chart of spiral bevel gear.
Fig. 2 is gear grinding clamp structure chart when cooperating with spiral bevel gear.
Fig. 3 is spiral bevel gear structure chart.
Fig. 4 is the main view of butterfly spring ringfeder.
Fig. 5 is the attached view of butterfly spring ringfeder.
The top view of Fig. 6 ontology；
The cross-sectional view of Fig. 7 ontology；
The structural schematic diagram of Fig. 8 calibration component.
Specific embodiment
To keep the purpose of this utility model, content and advantage clearer, with reference to the accompanying drawings and examples, to this reality
It is described in further detail with novel specific embodiment.
As shown in Figure 1, being a kind of spiral bevel gear gear grinding clamp of the utility model, comprising: pressing plate 1, butterfly spring 2,
Or referred to as butterfly spring ringfeder, straight pin 3, positioning disk 4, holding screw 5, the first screw 6, ontology 7, extension bar 8, the second screw
9, jackscrew 10, briquetting 11；
First screw is " -12 teeth/per inch of hexagon socket cap head screw 3/8；Second screw is hexagon socket cap head screw
M10X30。
1 longitudinal section of pressing plate is T-type structure, and top is disk, and disk lower part is rod-shaped；The disk of pressing plate 1 is used to press
Tight butterfly spring ringfeder 2.
The lower part of pressing plate 1 passes through the centre bore of ontology 7；The threads of lower part are connect with extension bar 8.Wherein 8 tail end of extension bar
Thread connecting mode is used with lathe pull rod, extension bar 8 can be pulled.
It is positioned between pressing plate 1 and ontology 7 using holding screw 5；Holding screw passes through the slot that ontology 7 is inserted into 1 periphery of pressing plate
In, limit the relative rotation of pressing plate and ontology 7；The length of the slot of periphery is greater than the head sizes of holding screw insertion, 1 energy of pressing plate
Enough move up and down.
The butterfly spring ringfeder is located between the disk lower end of pressing plate 1 and the upper end of ontology.
Butterfly spring ringfeder 2 be butterfly spring, the multiple radial opening slots of circumference, in addition to an open slot, other open slots
Inner stuffing is oil resistant rubber, is fitted closely in positioning principle, tensioner with spiral bevel gear inner hole using elasticity, is realized high-precision
Degree positioning；An open slot (positioning cotter way 13) on butterfly spring ringfeder is used for across straight pin 3, for limiting butterfly spring
The relative rotation of ringfeder and ontology 7 (or positioning disk).
The positioning disk 4, closely ontology 7 is placed, and is covered in the periphery of ontology, is fastened using the second screw 9 with ontology, wherein
Use cylinder finger setting positioning disk 4 and butterfly spring.
The ontology cooperates with tapered bore of machine tool spindle, and contact area is not less than 80%, is connected using the first screw 6 with lathe
It connects, wherein jackscrew and briquetting are installed in the tapped through hole of ontology.
7 lower end periphery of ontology is that (up big and down small) pyramidal structure is inserted into tapered bore of machine tool spindle cooperation.Lathe table top can be with
The lower end ladder table top (pyramidal structure top) of ontology 7 cooperates.Ladder table top and lathe table top are fixed by the first screw 6.
Ontology upper end has step type as a result, i.e. boss covers in butterfly spring；Ladder platform terrace except boss periphery
End face run-out be less than 0.005mm, the circular runout of boss periphery is less than 0.005mm；Stair-step surface roughness reaches 0.4 μ
m。
Calibration component 12, before processing part, replacement of parts examines gear grinding clamp installation accuracy, protects spring ringfeder.
As shown in Fig. 2, dotted portion is that spiral bevel gear installs modes of emplacement.It is radial when the type gear grinding clamp is installed
Bounce is not more than 0.005mm, end surface full jumping 0.005mm little greatly.
Further, 7 material of ontology is 20Cr, and carburizing and quenching is handled, and hardness reaches HRC60, uses standard with positioning disk 4
6 hexagon socket cap head screw M10X30 (9) connections of part.
Positioning disk material is 20Cr, and carburizing and quenching is handled, and hardness reaches HRC60, and upper and lower end faces bounce is less than
0.005mm。
Further, 2 inner hole of butterfly spring ringfeder and 7 upper end axle portion of ontology cooperate, while using straight pin 3 and positioning disk
4 are located by connecting, and prevent from rotating, then compress butterfly spring ringfeder 2 with pressing plate 1, and threaded hole one end of extension bar 8 is screwed into 1 tail end of pressing plate
Screw rod, the through-hole that holding screw 5 passes through on positioning disk 4 are screwed into the threaded hole on ontology 7, head into the slot on pressing plate 1.
After the gear grinding clamp of assembling and the cooperation of lathe taper hole, fastened using 6 hexagon socket cap head screws 6 and lathe,
Lathe side door is finally opened, lathe pull rod is screwed into 8 tail end screw rod of extension bar.
As shown in figure 3, φ 100H7 is reference for assembling at bevel gear two, according to reference for assembling and technological datum as far as possible one
The principle of cause, when roll flute, should select the hole φ 100H7 to position.As can be seen from the figure location hole is blind hole, and position length is smaller,
Existing gear grinding clamp is limited by design of part, it is difficult to meet positioning accuracy request.Therefore gear grinding clamp is in design using figure
4, butterfly spring ringfeder shown in 5, the type ringfeder have many advantages, such as that contact area is small, intensifying force is big, are suitable for umbrella tooth shown in Fig. 3
The support of the inner bearing slot structure of wheel steps up.The material of butterfly spring 2 is 50CrVA, quenching hardness HRC50, and slot inner stuffing is
Oil resistant rubber.
As shown in Figure 6,7, jackscrew 10, briquetting 11 are installed in 2 symmetrical tapped through holes of ontology 7, tapped through hole axis
It is vertical with platen face, since fixture and lathe are not easy to dismantle by cone match, therefore when replacement fixture, pass through
Jackscrew 10 is tightened, briquetting 11 is squeezed, briquetting stretches out tapped through hole, withstands platen face, ejects fixture.
Fig. 8 show calibration component 12, and location dimension is identical as bevel gear location dimension shown in Fig. 3, after fixture installs,
It is similar to make 12 center positioning hole of calibration component and butterfly spring major diameter fit with umbrella tooth mounting means shown in Fig. 2, apply axial force,
Pressing plate is tensed, butterfly spring tensioner degree and installation accuracy is detected, after reaching requirement, roll flute process processing can be carried out.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without deviating from the technical principle of the utility model, several improvement and deformations can also be made, these change
It also should be regarded as the protection scope of the utility model into deformation.
Claims (10)
1. a kind of spiral bevel gear gear grinding clamp, which is characterized in that it include pressing plate (1), butterfly spring ringfeder, positioning disk (4),
Ontology (7), extension bar (8)；It further include straight pin (3), holding screw (5), the first screw (6), the second screw (9)；
Pressing plate (1) longitudinal section is T-type structure, and top is disk, and disk lower part is rod-shaped；The disk of pressing plate (1) is used to press
Tight butterfly spring ringfeder (2)；
The butterfly spring ringfeder is located between the disk lower end of pressing plate (1) and the upper end ladder table top of ontology；Butterfly spring rises
Covering (2) is butterfly spring, and the multiple radial opening slots of circumference, an open slot is for across straight pin (3), straight pin (3) lower end
It is inserted into positioning disk simultaneously, for limiting the relative rotation of butterfly spring ringfeder and positioning disk；
The ontology upper end has forge piece of step type structure, and the boss that forge piece of step type structure is formed covers in butterfly spring ringfeder centre bore；
The lower part of pressing plate (1) passes through the centre bore of ontology (7)；Pressing plate (1) tail end is connect with extension bar (8)；Wherein extension bar (8) tail end
It is connect with lathe pull rod, extension bar (8) can be pulled；
It is positioned between pressing plate (1) and ontology (7) using holding screw (5)；Holding screw passes through ontology (7) insertion pressing plate (1) outside
In the slot in week, the relative rotation of pressing plate and ontology (7) is limited；The length of the slot of periphery is greater than the head ruler of holding screw insertion
Very little, pressing plate (1) can move up and down；
The positioning disk sleeve is fastened in the periphery of ontology by the second screw (9) and ontology；
Ontology (7) lower end has ladder table top, and periphery is up big and down small pyramidal structure under the ladder table top of lower end, inserts
Enter and tapered bore of machine tool spindle；Lathe table top and the lower end ladder table top of ontology (7) cooperate；Lower end ladder table top and lathe table top are logical
It is fixed to cross the first screw (6).
2. a kind of spiral bevel gear gear grinding clamp according to claim 1, which is characterized in that the ladder of ontology (7) upper end
The end face run-out of the ladder platform terrace of type structure is less than 0.005mm, and the circular runout of the boss periphery of forge piece of step type structure is less than
0.005mm；The stair-step surface roughness of forge piece of step type structure reaches 0.4 μm.
3. a kind of spiral bevel gear gear grinding clamp according to claim 1, which is characterized in that further include jackscrew, briquetting；Its
Middle jackscrew and briquetting are installed in the tapped through hole of lower end step end face of ontology；The axis and lathe table top of tapped through hole hang down
Directly.
4. a kind of spiral bevel gear gear grinding clamp according to claim 1, which is characterized in that the positioning disk and ontology
At counterface, fastened by 6 the second screws (9).
5. a kind of spiral bevel gear gear grinding clamp according to claim 1, which is characterized in that it further include calibration component (12),
Calibration component is used to calibrate the tensioner degree and installation accuracy of butterfly spring ringfeder, the location dimension and roll flute of center positioning hole
Bevel gear centre bore location dimension used in fixture is identical.
6. a kind of spiral bevel gear gear grinding clamp according to claim 1, which is characterized in that positioning disk upper and lower end faces are jumped
It is dynamic to be less than 0.005mm.
7. a kind of spiral bevel gear gear grinding clamp according to claim 1, which is characterized in that butterfly spring ringfeder is except installation
Outside the open slot of straight pin, filled rubber in other open slots.
8. a kind of spiral bevel gear gear grinding clamp according to claim 1, which is characterized in that pressing plate (1) tail end passes through spiral shell
Line is screwed into the threaded hole of extension bar (8).
9. a kind of spiral bevel gear gear grinding clamp according to claim 1, which is characterized in that holding screw (5) passes through fixed
Through-hole on the disk of position is screwed into the threaded hole on ontology, is inserted into the slot of pressing plate (1) periphery.
10. a kind of spiral bevel gear gear grinding clamp according to claim 1, which is characterized in that the first screw is interior hexagonal
Fillister head screw；Second screw is hexagon socket cap head screw M10X30.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820879069.XU CN208289148U (en) | 2018-06-07 | 2018-06-07 | A kind of spiral bevel gear gear grinding clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820879069.XU CN208289148U (en) | 2018-06-07 | 2018-06-07 | A kind of spiral bevel gear gear grinding clamp |
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| Publication Number | Publication Date |
|---|---|
| CN208289148U true CN208289148U (en) | 2018-12-28 |
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ID=64723997
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820879069.XU Active CN208289148U (en) | 2018-06-07 | 2018-06-07 | A kind of spiral bevel gear gear grinding clamp |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500403A (en) * | 2018-06-07 | 2018-09-07 | 北京北方车辆集团有限公司 | A kind of spiral bevel gear gear grinding clamp |
| CN112894030A (en) * | 2020-12-29 | 2021-06-04 | 重庆市合川区昌友机械制造有限责任公司 | Positioning tool of band sawing machine for gear machining |
| CN108500403B (en) * | 2018-06-07 | 2024-07-02 | 北京北方车辆集团有限公司 | Spiral bevel gear grinding clamp |
-
2018
- 2018-06-07 CN CN201820879069.XU patent/CN208289148U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108500403A (en) * | 2018-06-07 | 2018-09-07 | 北京北方车辆集团有限公司 | A kind of spiral bevel gear gear grinding clamp |
| CN108500403B (en) * | 2018-06-07 | 2024-07-02 | 北京北方车辆集团有限公司 | Spiral bevel gear grinding clamp |
| CN112894030A (en) * | 2020-12-29 | 2021-06-04 | 重庆市合川区昌友机械制造有限责任公司 | Positioning tool of band sawing machine for gear machining |
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