CN202240477U - Shoe type precise indexing brake - Google Patents
Shoe type precise indexing brake Download PDFInfo
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- CN202240477U CN202240477U CN201120384014XU CN201120384014U CN202240477U CN 202240477 U CN202240477 U CN 202240477U CN 201120384014X U CN201120384014X U CN 201120384014XU CN 201120384014 U CN201120384014 U CN 201120384014U CN 202240477 U CN202240477 U CN 202240477U
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- brake
- shoe
- tooth
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Abstract
The utility model relates to a shoe type precise indexing brake which is an improvement on a precision indexing and powerful positioning technology for a rotary operating platform in machining equipment, in particular to a shoe type indexing brake which is applied to the field of combined machining equipment and numerically-controlled machines. The shoe type precise indexing brake comprises a station conversion rotating shaft, a driving device and an operating platform and is characterized in that: the brake further comprises a brake shoe insertion device and a brake shoe framework, wherein the brake shoe insertion device is provided with teeth or grooves and is arranged on the station conversion rotating shaft, and the brake shoe framework is concentrically arranged around the brake shoe insertion device; a primary brake shoe group and an amendment brake shoe group are positioned on the brake shoe framework; each group is provided with two brake shoes which are symmetrically distributed on the brake shoe framework; and each brake shoe is provided with a linear drive mechanism in a mating manner, wherein the linear drive mechanism points to the center of a circle and is connected with a tooth-shaped brake yoke of the brake shoe, and the tooth-shaped brake yoke can slide along a radial slide rail. With the adoption of the scheme, a brake clutch action can be achieved by only radial movement of the brake shoes and without the axial movement of the conversion rotating shaft, the complexity of the brake is lowered, and the actions of the brake are reduced.
Description
Technical field
The utility model is to the precision indexing of rotary table in the machining apparatus and the improvement of powerful location technology, particularly is applied in the shoe type calibration brake in unit mahine process equipment and Digit Control Machine Tool field.
Background technology
In machining apparatus, particularly the Precision Machining field is very strict to the designing requirement of the detent mechanism of processing component or cutting cutlery.Rotation calibration, location be again more common in the detent mechanism, that specification requirement is complicated is a kind of.Can't adapt to the needs of high-speed automated equipment by means of the pattern of dividing head calibration, mechanical lock compact form, already by the index technology under the step motor drive with force that brake-shoe down is technological to be substituted.But the retaining mechanism that is adopted in the structure of present dividing and positioning mechanism is axial plug-in type brake-shoe; Though existing brake-shoe structure can stably be located the rotary table that puts in place; But precision adjustment function is dumb, operating process and match mechanism is complicated, volume is big; Suddenly wait to improve, to adapt to the supporting needs of building-block machine and Digit Control Machine Tool.
Summary of the invention
The utility model is to the deficiency on the existing profile of tooth shoe type precision indexing header structure, particularly improves to indexing accuracy, compact conformation degree and complicated operating process degree.
The design adopts following technical scheme: shoe type precision indexing brake; The drive unit that comprises station conversion rotating shaft and turning cylinder in the structure; Be connected to the rotary table of station conversion rotating shaft; Key is: also be included in the annular brake-shoe insertion device that evenly is provided with tooth or groove in the station conversion rotating shaft in the brake structural; Be fixed on the board and insert the brake-shoe framework that device is provided with one heart round brake-shoe, there is the Leading shoe group location and revises the brake-shoe group on the brake-shoe framework, and every group has two brake-shoes; Be in the radial direction in the same plane and be symmetrically distributed on the brake-shoe framework; Each brake-shoe is supporting to be provided with the straight line driving mechanism that points to the center of circle, in this straight line driving mechanism and the brake-shoe structure, can link to each other along the profile of tooth brake strategic point that slide rail radially slides, tooth or groove on the tooth of profile of tooth brake strategic point and the brake-shoe insertion device are suitable.
Drive unit drives the station conversion rotating shaft, and brake-shoe insertion device and station conversion rotating shaft drive workbench and rotate as one.
When the station conversion rotating shaft forwarded the angle of requirement to, corresponding brake-shoe group was inserted brake-shoe and is inserted device.Because drive unit can very accurately be confirmed rotational angle, brake-shoe is installed by the position of designing requirement, after the station conversion rotating shaft stops, can accurately aiming at brake-shoe and insert tooth or groove on the device, realizes accurate calibration.Tooth or groove that brake-shoe and brake-shoe insert on the device are combined closely, and brake-shoe cooperates in pairs, each braking have two on same plane, collinear brake-shoe works simultaneously, can reach braking effect.Brake-shoe unclamps, and the station conversion rotating shaft can be carried out work.The braking clutch action does not need the station conversion rotating shaft to carry out axially-movable, only needs brake-shoe just moving radially and can realizing, has reduced the complexity of equipment, reduces device motion.
Description of drawings
Fig. 1 is that brake-shoe inserts the integral installation sketch map when on the device fluted disc being set in the utility model,
Fig. 2 holds tightly under the state in the Leading shoe group, and the A-A among Fig. 1 is to profile,
Fig. 3 is the structural representation of brake-shoe,
Fig. 4 is that brake-shoe inserts the integral installation sketch map when on the device three layers of groove being set in the utility model,
Fig. 5 is the profile of tooth of corresponding diagram 4 elevational schematic view in distress of braking.
Wherein: the 1st, rotary table, the 2nd, board, the 3rd, brake-shoe inserts the fluted disc on the device, and the 4th, the fixing bolt of brake-shoe framework; The 5th, bearing, the 6th, station conversion rotating shaft, the 7th, brake-shoe framework; The 8th, Leading shoe, the 9th, brake-shoe inserts device, and the 10th, revise brake-shoe; The 11st, the profile of tooth brake strategic point on the brake-shoe, the 12nd, the slide block on the brake-shoe, the 13rd, brake-shoe inserts the groove on the device.
The specific embodiment
Shoe type precision indexing brake; The drive unit that comprises station conversion rotating shaft 6 and turning cylinder in the structure; Be connected to the rotary table 1 of station conversion rotating shaft 6; Particularly: also be included in the annular brake-shoe insertion device 9 that evenly is provided with tooth or groove in the station conversion rotating shaft 6 in the brake structural; Be fixed on the board 2 and insert the brake-shoe framework 7 that device 9 is provided with one heart round brake-shoe, there are 8 groups of Leading shoes the location and revise 10 groups of brake-shoes on the brake-shoe framework 7, and every group has two brake-shoes; Be in the radial direction in the same plane and be symmetrically distributed on the brake-shoe framework 7; Each brake-shoe is supporting to be provided with the straight line driving mechanism that points to the center of circle, in this straight line driving mechanism and the brake-shoe structure, can link to each other along the profile of tooth brake strategic point 11 that slide rail radially slides, tooth or groove on the tooth of profile of tooth brake strategic point 11 and the brake-shoe insertion device 9 are suitable.
Shoe type precision indexing brake according to claim 1 is characterized in that: two brake-shoes on the same group supporting straight line driving mechanism be synchronous drive mechanism.
Revise the brake-shoe group and be provided with at least one group.
Tooth on the brake-shoe insertion device 9 or groove number are 180 integral multiples.
The number of tooth is one to six on the profile of tooth brake strategic point 11.
The structure centre line of Leading shoe and the structure centre line of revising brake-shoe be all circular brake-shoe framework 7 radially and intersect at the center of circle; Center line angle value is N °+M °; N is the integral multiple that brake-shoe inserts angle between device 9 teeth or groove, and M is for setting the correction value of scale division value.
Brake-shoe inserts device 9 tooth is set, and the height of its tooth is 1/2～1/3 of an identical modulus lower toothed height.
Brake-shoe inserts device 9 groove is set, and the number of plies of groove is one to four layer.
The number of plies of tooth is consistent with the number of plies that brake-shoe inserts groove on the device 9 on the profile of tooth brake strategic point 11.
Below in conjunction with accompanying drawing the utility model is elaborated.
The brake-shoe framework 7 that brake-shoe is installed is fixed on the board 2 by bolt 4; The position punching that on brake-shoe framework 7, designs; Brake-shoe is installed in the hole of brake-shoe framework 7, the 5th, the bearing of cooperation station conversion rotating shaft 6, it is one with station conversion rotating shaft 6 that brake-shoe inserts device 9; Drive workbench 1 and rotate, as depicted in figs. 1 and 2.
In this example, brake-shoe inserts on the device 9 fluted disc 3 is set, and the number of teeth is 360, and the basic demand of calibration is to realize three kinds of calibration: the calibration of the whole number of degrees in 360 ° of scopes, the whole number of degrees+0.5 °, the whole number of degrees+0.1 °.
Therefore, the quantity of brake-shoe is 3 groups.Confirm the installation site of brake-shoe below.
At first confirm Leading shoe 8, just realize the brake-shoe position of whole number of degrees calibration, and with the reference line of its structure centre line as other brake-shoe position.In this example; The direction of inverted T shape groove was identical when the structure centre line was set to be in initial position with workbench; First group of correction brake-shoe 10 is arranged on its structure centre line and is positioned at turn clockwise 45.5 ° position of reference line, and second group of correction brake-shoe 10 is arranged on its structure centre line and is positioned at the position that reference line is rotated counterclockwise 45.1 °.
After designing the quantity and installation site of brake-shoe, on brake-shoe framework 7 relevant positions, punch, brake-shoe is installed in the hole.
Tooth number on the profile of tooth brake strategic point 11 inserts the number of tooth on the device 9 according to diameter, the brake-shoe of station conversion rotating shaft 6 and the stressed size of workbench is confirmed, as shown in Figure 3 in this example, the tooth number on the profile of tooth brake strategic point 11 is four.
In order to reduce the stroke of brake-shoe, in this example, the height of fluted disc 3 teeth is subdued to 1/2 of identical modulus lower toothed height, and the height of the tooth in the brake-shoe structure on the profile of tooth brake strategic point 11 is adaptive with it.
During work, when station conversion rotating shaft 6 forwards the whole number of degrees to and need brake, the motor stall, at this moment, the profile of tooth brake strategic point 11 that above-mentioned Leading shoe is 8 groups can closely cooperate with the tooth on the fluted disc 3, can realize braking after holding tightly.Therefore this group brake-shoe can realize that turning cylinder holds braking tightly when the arbitrarily whole number of degrees.
When station conversion rotating shaft 6 forwards the whole number of degrees+0.5 ° needs braking to, the motor stall, at this moment, the profile of tooth brake strategic point 11 that above-mentioned first group of correction brake-shoe is 10 groups can closely cooperate with the tooth on the fluted disc 3, can realize braking after holding tightly.Therefore this group brake-shoe can realize that turning cylinder holds braking tightly when the arbitrarily whole number of degrees+0.5 °.
In like manner, above-mentioned second group of correction brake-shoe can realize that turning cylinder holds braking tightly when any whole number of degrees+0.1 °.
State when Fig. 2 can see whole number of degrees braking, wherein 8 groups of Leading shoes are with the fluted disc locking.Fig. 3 is the structural representation of brake-shoe, and slide block 12 leans on the driving of straight line driving mechanism to form and slides, and profile of tooth brake strategic point 11 is injected in the fluted disc 3.
Only provided the calibration braking of three kinds of angles in this example; But be not difficult to find out, adopt this structure, as long as on the angle position that designs, brake-shoe is installed; Just can realize multiple calibration requirement, precision depends on the machining accuracy of tooth, the installation accuracy of brake-shoe and the control accuracy of drive unit.If the brake-shoe number is more, in one plane place inconvenience, can suitably increase the height of fluted disc 3, brake-shoe is divided into two layers or more placement.
Provided brake-shoe in this example and inserted the situation that tooth is set on the device 9, when on the brake-shoe insertion device 9 groove being set, having had only brake-shoe to insert device 9 on the structure and change; Groove can be provided with multilayer, and the tooth correspondence on the brake-shoe profile of tooth brake strategic point 11 is the groove 13 of one deck wherein, also can corresponding multilayer; As shown in Figure 4, brake-shoe inserts on the device 9 three layers of groove 13 is set, accordingly; As shown in Figure 5, the tooth on the profile of tooth brake strategic point 11 also is provided with three layers, and every layer has two teeth.Other structures are identical with action principle, repeat no more here.
Equally, through multi-layer groove is set, profile of tooth brake strategic point 11 not corresponding wherein all layers on the brake-shoe, brake-shoe can be placed on the different plane.
Though tooth on the utility model qualification brake-shoe insertion device 9 or groove number are 180 integral multiple, obviously, other any teeth or groove number also can be braked through the position realization calibration of design brake-shoe.
Claims (8)
1. shoe type precision indexing brake; The drive unit that comprises station conversion rotating shaft (6) and turning cylinder in the structure; Be connected to the rotary table (1) of station conversion rotating shaft (6); It is characterized in that: also be included in station conversion rotating shaft (6) in the brake structural and go up the brake-shoe insertion device (9) that annular evenly is provided with tooth or groove; Be fixed on board (2) and go up the brake-shoe framework (7) that inserts the concentric setting of device (9) round brake-shoe, brake-shoe framework (7) is gone up the location has Leading shoe (8) group and correction brake-shoe (10) to organize, and every group has two brake-shoes; Be in the radial direction in the same plane and be symmetrically distributed on the brake-shoe framework (7); Each brake-shoe is supporting to be provided with the straight line driving mechanism that points to the center of circle, in this straight line driving mechanism and the brake-shoe structure, can link to each other along the profile of tooth brake strategic point (11) that slide rail radially slides, tooth and the tooth or the groove on the brake-shoe insertion device (9) of profile of tooth brake (11) in distress are suitable.
2. shoe type precision indexing brake according to claim 1 is characterized in that: two brake-shoes on the same group supporting straight line driving mechanism be synchronous drive mechanism.
3. shoe type precision indexing brake according to claim 1 is characterized in that: revise the brake-shoe group and be provided with at least one group.
4. shoe type precision indexing brake according to claim 1 is characterized in that: tooth on the brake-shoe insertion device (9) or groove number are 180 integral multiples.
5. shoe type precision indexing brake according to claim 1 is characterized in that: the number that profile of tooth brake strategic point (11) goes up tooth is 1 to 6.
6. shoe type precision indexing brake according to claim 1; It is characterized in that: the structure centre line of Leading shoe and the structure centre line of revising brake-shoe be all circular brake-shoe framework (7) radially and intersect at the center of circle; Center line angle value is N °+M °; N is the integral multiple that brake-shoe inserts angle between device (9) tooth or groove, and M is for setting the correction value of scale division value.
7. shoe type precision indexing brake according to claim 1 is characterized in that: brake-shoe inserts device (9) tooth is set, and the height of its tooth is 1/2～1/3 of an identical modulus lower toothed height.
8. shoe type precision indexing brake according to claim 1 is characterized in that: brake-shoe inserts device (9) groove is set, and the number of plies of groove is one to four layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120384014XU CN202240477U (en) | 2011-10-11 | 2011-10-11 | Shoe type precise indexing brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120384014XU CN202240477U (en) | 2011-10-11 | 2011-10-11 | Shoe type precise indexing brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202240477U true CN202240477U (en) | 2012-05-30 |
Family
ID=46101778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120384014XU Expired - Fee Related CN202240477U (en) | 2011-10-11 | 2011-10-11 | Shoe type precise indexing brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202240477U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104670493A (en) * | 2015-03-10 | 2015-06-03 | 武汉天降科技有限公司 | High-speed braking and positioning device of helicopter propeller |
| CN110103211A (en) * | 2019-06-06 | 2019-08-09 | 深圳市秘银科技有限公司 | A kind of manipulator |
| CN115302263A (en) * | 2022-09-06 | 2022-11-08 | 浙江畅尔智能装备股份有限公司 | Small-size numerical control indexing revolving platform device |
-
2011
- 2011-10-11 CN CN201120384014XU patent/CN202240477U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104670493A (en) * | 2015-03-10 | 2015-06-03 | 武汉天降科技有限公司 | High-speed braking and positioning device of helicopter propeller |
| CN110103211A (en) * | 2019-06-06 | 2019-08-09 | 深圳市秘银科技有限公司 | A kind of manipulator |
| CN115302263A (en) * | 2022-09-06 | 2022-11-08 | 浙江畅尔智能装备股份有限公司 | Small-size numerical control indexing revolving platform device |
| CN115302263B (en) * | 2022-09-06 | 2023-08-08 | 浙江畅尔智能装备股份有限公司 | Small-sized numerical control indexing rotary table device |
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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 |
Granted publication date: 20120530 Termination date: 20171011 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |