CN204295505U - Propeller blade numerical control abrasive belt grinding machine measuring mechanism - Google Patents
Propeller blade numerical control abrasive belt grinding machine measuring mechanism Download PDFInfo
- Publication number
- CN204295505U CN204295505U CN201420763748.2U CN201420763748U CN204295505U CN 204295505 U CN204295505 U CN 204295505U CN 201420763748 U CN201420763748 U CN 201420763748U CN 204295505 U CN204295505 U CN 204295505U
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- China
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- installation shaft
- female connector
- grinding machine
- numerical control
- abrasive belt
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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model discloses a kind of propeller blade numerical control abrasive belt grinding machine measuring mechanism, installation shaft (1) is supported mutually by linear bearing (3) and bearing block (2), cylinder (5) is provided with at the rear of installation shaft (1), piston rod and installation shaft (1) rear end of cylinder (5) are fixed, female connector (8) is provided with in the front of installation shaft (1), and length gauge (7) is provided with in the pipe of installation shaft (1) front end, the rear end of length gauge (7) is connected with one of tracheae (9), front portion and the female connector (8) of length gauge (7) fix, the gauge head of length gauge (7) front end can stretch out the front port of female connector (8).The utility model can to the on-line measurement of screw blade face march facial contour, not only structure is simple, easy to operate, and can effectively improve certainty of measurement and efficiency, its measurement result is by communicating with the digital control system of numerical control abrasive belt grinding machine, accurately can instruct the reconditioning process on screw blade face thereafter, thus ensure the surface accuracy on screw blade face.
Description
Technical field
The utility model relates to a kind of propeller blade numerical control abrasive belt grinding machine measuring mechanism, for carrying out on-line measurement to the screw after processing.
Background technology
Screw is as the critical component of ship power plant, and its accuracy of manufacture and surface quality are directly connected to the efficiency, vibration, noise etc. of Ship Propeling.Improve the machining accuracy of screw, there is vital effect in the life-span for the efficiency of raising screw, the generation reducing cavity, raising screw.
Marine propeller profile often adopts 5-shaft linkage numerical control Milling Process, but because the surface quality of Milling Process is poor, make its to marine propeller propulsive efficiency and Fatigue Strength Effect more greatly, in addition marine propeller there is the distortion that Milling Process produces, marine propeller surface finally also needs grinding or polishing.In order to ensure that screw meets size and required precision after repeatedly processing, every procedure must be processed the distance difference measurement of front and back and theoretical profile out, through the accuracy of manufacture and the surface quality of Data Management Analysis screw, and by corresponding operation, gap is controlled in suitable scope.
At present, what the measurement of propeller blade mainly adopted is contactless measurement.Contactless measurement makes measurement efficiency be greatly improved, and some optical measuring machine can obtain a hundreds of thousands data point within the several seconds, and can obtain the mass data (" some cloud ") comprising testee more details.But the data volume of mass data (" some cloud ") is very huge, can have a strong impact on the efficiency of curve reestablishing algorithm, bring very large difficulty to data processing and Model Reconstruction.In addition, " some cloud " that overall measurement obtains is generally at random, need to carry out data fragmentation and feature extraction by corresponding software, and current " some cloud " process software also far can not meet this demand.
Utility model content
The purpose of this utility model is to provide a kind of propeller blade numerical control abrasive belt grinding machine measuring mechanism, to improve the certainty of measurement of screw.
The technical solution of the utility model is as follows: a kind of propeller blade numerical control abrasive belt grinding machine measuring mechanism, installation shaft (1) is straight tube structure, this installation shaft (1) is passed from bearing block (2), and supported mutually with bearing block (2) by linear bearing (3), bearing block (2) is fixed on the bistrique (4a) of numerical control abrasive belt grinding machine (4), cylinder (5) is provided with at the rear of described installation shaft (1), the axial line of this cylinder (5) and the axial line of installation shaft (1) are point-blank, and the piston rod of cylinder (5) is fixedly connected with by the rear end of joint (6) with installation shaft (1), co-axially fixed female connector (8) is with it provided with in the front of described installation shaft (1), and length gauge (7) is provided with in the pipe of installation shaft (1) front end, the rear end of described length gauge (7) is connected with one of tracheae (9), the other end of tracheae (9) is drawn from the rear end of installation shaft (1), and be connected with source of the gas, front portion and the female connector (8) of described length gauge (7) fix, the gauge head of length gauge (7) front end can stretch out the front port of female connector (8), this gauge head is positioned at the side of the contact wheel (4b) on bistrique (4a).
Installation shaft in the utility model and bistrique are arranged in parallel, and make when detection, and ensure that length gauge gauge head realizes on-line checkingi while screw machined surface can being detected, this also makes the installation and maintenance of whole measuring mechanism easier.The piston of cylinder can drive piston rod to move at fore-and-aft direction, makes installation shaft with piston rod synchronizing moving; Installation shaft and gauge head meanwhile, to the tracheae inflating pressure being positioned at installation shaft inner chamber, the gauge head of length gauge released forward, until can arrive predetermined operating position.By the control to cylinder and tracheae, to realize the stretching motion of installation shaft and gauge head, can effectively avoid causing interference to processing in the process of grinding, and the damage to gauge head.
Gauge head in the utility model directly contacts surface of the work by probe, when contact produces certain pressure deviator, probe deforms, and the sensor on gauge head identifies the size and Orientation of distortion, and deflection is fed back to computer, by obtaining the coordinate value of this point after relevant data processing.Certainty of measurement of the present utility model is high, to the material of workpiece for measurement and color and luster without particular/special requirement, all automatic measurement can be realized, therefore efficiency is measured also higher, its measurement result is by communicating with numerical control abrasive belt grinding machine digital control system, the accurate reconditioning in screw blade face thereafter can be instructed, to ensure the surface quality on screw blade face.
Square breach is had on the top in described female connector (8) centre position, the briquetting (10) that shape size with it adapts is provided with in the party's v notch v, the front portion of length gauge (7) is compressed by the arc groove of bottom by described briquetting (10), and briquetting (10) is fixed by about two bolts worn and female connector (8).Above structure can guarantee that length gauge had been installed not only firmly but also reliable, and length gauge easy accessibility, quick.
In the front end of described female connector (8) suit nut (11), this nut (11) and female connector (8) threaded engagement, the probe cover of length gauge (7) front end enters wherein by nut (11).The gauge head of nut to length gauge shields, and sustains damage to prevent gauge head in grinding process; When needs are measured, unscrew and take off nut, gauge head is exposed, it is very convenient to operate.
In order to simplify structure, convenient for assembly, and guarantee the fixing of connection, the rear end of installation shaft (1) is stretched in the front end of described joint (6), both threaded engagement, the rear end of joint (6) is formed with annular boss, and the rear end face of this annular boss and installation shaft (1) is fitted; The piston rod of cylinder (5) is inserted in by the centre bore of described joint (6), both threaded engagement.
Conveniently line arrangement, is provided with opening (1a) vertically in the rear end of described installation shaft (1), and described tracheae (9) is drawn from this opening (1a).
Beneficial effect: the utility model can to the on-line measurement of screw blade face march facial contour, not only structure is simple, easy to operate, and can effectively improve certainty of measurement and efficiency, its measurement result is by communicating with the digital control system of numerical control abrasive belt grinding machine, accurately can instruct the reconditioning process on screw blade face thereafter, thus ensure the surface accuracy on screw blade face.
Accompanying drawing explanation
Fig. 1 is the layout schematic diagram of the utility model on numerical control abrasive belt grinding machine.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation of installation shaft.
Fig. 4 is the A-A sectional view of Fig. 3.
Fig. 5 is the B-B sectional view of Fig. 3.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is described in further detail:
As shown in Figure 1 and Figure 2, installation shaft 1 is straight tube structure, and this installation shaft 1 is passed from bearing block 2, and is supported with bearing block 2 phase by linear bearing 3, bearing block 2 is secured by bolts on the bistrique 4a of numerical control abrasive belt grinding machine 4, and installation shaft 1 and bistrique 4a are arranged in parallel.Be provided with cylinder 5 at the rear of described installation shaft 1, the axial line of this cylinder 5 and the axial line of installation shaft 1 are point-blank.The cylinder body of cylinder 5 is connected by the pedestal of former and later two mounting blocks with numerical control abrasive belt grinding machine 4, and the piston rod of cylinder 5 stretches out forward, and is inserted in by the centre bore of joint 6, the piston rod of cylinder 5 and joint 6 threaded engagement.The rear end of installation shaft 1, both threaded engagement are stretched in the front end of described joint 6, and the rear end of joint 6 is formed with annular boss, and the rear end face of this annular boss and installation shaft 1 is fitted.
As shown in Figure 2, Figure 3, Figure 4, be provided with female connector 8 coaxial with it in the front of installation shaft 1, the rear end of female connector 8 is welded mutually with the front end of installation shaft 1 or is connected as a single entity.Length gauge 7 is provided with in the pipe of described installation shaft 1 front end, the axial line of this length gauge 7 and the axial line of installation shaft 1 are point-blank, the rear end of length gauge 7 is connected with one of tracheae 9, and the other end of tracheae 9 is drawn from the rear end of installation shaft 1, and is connected with source of the gas.As preferably, be provided with opening 1a vertically in the rear end of described installation shaft 1, tracheae 9 is drawn from this opening 1a.
As shown in Fig. 2, Fig. 3, Fig. 5, square breach is had on the top in female connector 8 centre position, the briquetting 10 that shape size with it adapts is provided with in the party's v notch v, the front portion of length gauge 7 is compressed by the arc groove of bottom by described briquetting 10, and briquetting 10 is fixed by about two bolts worn and female connector 8.The gauge head of described length gauge 7 front end can stretch out the front port of female connector 8, and this gauge head is positioned at the side of the contact wheel 4b on bistrique 4a.At the front end of described female connector 8 suit nut 11, this nut 11 and female connector 8 threaded engagement, the probe cover of length gauge 7 front end enters wherein by nut 11.
The nut 11 of female connector 8 front end, before measuring, first takes off by the utility model, lathe operational mode is set to manually, then controls testing agency and returns former reference point, controls gas pressure and the gauge head of length gauge 7 is stretched out.Lathe operational mode is changed into automatically, selects good trace routine prepared in advance, then start to detect:
1) screw 12 is arranged on the rotary table 4c of numerical control abrasive belt grinding machine 4, adopts concentric cylinder planar survey method, realize the scanning motion along screw 12 design profile by the motion of grinding machine, some monitoring points are chosen on screw 12 blade face; Number and the position of monitoring point are determined according to actual needs.
2) drive the bistrique 4a of numerical control abrasive belt grinding machine 4, make bistrique 4a move to the position of corresponding first monitoring point.
3) control cylinder 5 action, make the piston rod of cylinder 5 drive installation shaft 1 to move forward, the length gauge 7 be fixed in installation shaft 1 moves with installation shaft 1, until the gauge head of length gauge 7 points to and monitoring point corresponding on screw 12 blade face.
4) source of the gas is by the inner chamber ventilation pressurization of tracheae 9 to length gauge 7, makes the gauge head of length gauge 7 stretch out the front port of female connector 8;
5) gas pressure in tracheae 9 is controlled, and keep the gauge head of length gauge 7 to contact with screw 12 blade face all the time, probes touch on gauge head to screw surface and when producing certain pressure deviator, one group of interaction force is produced between probe and screw, probe is deformed, and the sensor on gauge head identifies the size and Orientation of this distortion, and this deflection is fed back to computer, by obtaining the coordinate value of this point after relevant data processing, thus realize the data acquisition of this monitoring point.The time that the pressure of gas and gauge head contact with screw is determined according to actual needs.
6) piston rod of control cylinder 5 drives installation shaft 1 to move backward together with length gauge 7, then the bistrique 4a of numerical control abrasive belt grinding machine 4 is driven, make bistrique 4a move to the position of next monitoring point, repeat step 3)-5), until the data acquisition of all monitoring points completes.
After the Data Detection of all monitoring points of the utility model, derive measurement data and analyze, to determine the parameter of following process.
Claims (5)
1. a propeller blade numerical control abrasive belt grinding machine measuring mechanism, it is characterized in that: installation shaft (1) is straight tube structure, this installation shaft (1) is passed from bearing block (2), and supported mutually with bearing block (2) by linear bearing (3), bearing block (2) is fixed on the bistrique (4a) of numerical control abrasive belt grinding machine (4), cylinder (5) is provided with at the rear of described installation shaft (1), the axial line of this cylinder (5) and the axial line of installation shaft (1) are point-blank, and the piston rod of cylinder (5) is fixedly connected with by the rear end of joint (6) with installation shaft (1), co-axially fixed female connector (8) is with it provided with in the front of described installation shaft (1), and length gauge (7) is provided with in the pipe of installation shaft (1) front end, the rear end of described length gauge (7) is connected with one of tracheae (9), the other end of tracheae (9) is drawn from the rear end of installation shaft (1), and be connected with source of the gas, front portion and the female connector (8) of described length gauge (7) fix, the gauge head of length gauge (7) front end can stretch out the front port of female connector (8), this gauge head is positioned at the side of the contact wheel (4b) on bistrique (4a).
2. propeller blade numerical control abrasive belt grinding machine measuring mechanism according to claim 1, it is characterized in that: have square breach on the top in described female connector (8) centre position, the briquetting (10) that shape size with it adapts is provided with in the party's v notch v, the front portion of length gauge (7) is compressed by the arc groove of bottom by described briquetting (10), and briquetting (10) is fixed by about two bolts worn and female connector (8).
3. propeller blade numerical control abrasive belt grinding machine measuring mechanism according to claim 1, it is characterized in that: in the front end of described female connector (8) suit nut (11), this nut (11) and female connector (8) threaded engagement, the probe cover of length gauge (7) front end enters wherein by nut (11).
4. propeller blade numerical control abrasive belt grinding machine measuring mechanism according to claim 1, it is characterized in that: the rear end of installation shaft (1) is stretched in the front end of described joint (6), both threaded engagement, the rear end of joint (6) is formed with annular boss, and the rear end face of this annular boss and installation shaft (1) is fitted; The piston rod of cylinder (5) is inserted in by the centre bore of described joint (6), both threaded engagement.
5. propeller blade numerical control abrasive belt grinding machine measuring mechanism according to claim 1, it is characterized in that: be provided with opening (1a) vertically in the rear end of described installation shaft (1), described tracheae (9) is drawn from this opening (1a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420763748.2U CN204295505U (en) | 2014-12-08 | 2014-12-08 | Propeller blade numerical control abrasive belt grinding machine measuring mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420763748.2U CN204295505U (en) | 2014-12-08 | 2014-12-08 | Propeller blade numerical control abrasive belt grinding machine measuring mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204295505U true CN204295505U (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420763748.2U Withdrawn - After Issue CN204295505U (en) | 2014-12-08 | 2014-12-08 | Propeller blade numerical control abrasive belt grinding machine measuring mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204295505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440552A (en) * | 2014-12-08 | 2015-03-25 | 重庆衡山机械有限责任公司 | Numerically-controlled abrasive belt grinding machine measurement mechanism and detection method for propeller blade |
-
2014
- 2014-12-08 CN CN201420763748.2U patent/CN204295505U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104440552A (en) * | 2014-12-08 | 2015-03-25 | 重庆衡山机械有限责任公司 | Numerically-controlled abrasive belt grinding machine measurement mechanism and detection method for propeller blade |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150429 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |