CN204893489U - Boats and ships water jet propulsion pump's pump body processing special fixture - Google Patents
Boats and ships water jet propulsion pump's pump body processing special fixture Download PDFInfo
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- CN204893489U CN204893489U CN201520583092.0U CN201520583092U CN204893489U CN 204893489 U CN204893489 U CN 204893489U CN 201520583092 U CN201520583092 U CN 201520583092U CN 204893489 U CN204893489 U CN 204893489U
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- pump housing
- jet propulsion
- hole
- special fixture
- pump
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Abstract
The utility model discloses a boats and ships water jet propulsion pump's pump body processing special fixture, comprises a clamp body, the anchor clamps body is a quadrangle plate body, the anchor clamps body outwards is equipped with a circular locating pin in proper order from the center and with annular circular slot, presss from both sides specific lower left corner and be close to annular circular slot position department is equipped with a major diameter and is on a parallel with the tangential rhombus locating pin of annular circular slot, physically keeps away from in the cornerwise upper right corner in the lower left corner at anchor clamps annular circular slot position department be equipped with one with parallel " concave " font hinge seat of anchor clamps body right side terminal surface, in the recess of hinge seat, the cross -section that comprises the length board through the round pin axle hinged joint that is equipped with is that " the returning face plate of " font is equipped with a screw hole on the returning face plate long slab, install set screw in the screw hole, anchor clamps body bilateral symmetry is equipped with the clamp plate. The utility model discloses a special fixture simple structure, positioning accuracy is high, low in manufacturing cost, the clamping is quick, and convenient operation has improved work efficiency widely.
Description
Technical field
The utility model relates to a kind of pump housing clamp for machining, more specifically relates to a kind of pump housing Special Fixture for Machining of Marine Water-jet Propulsion Pump, belongs to Machining Technology field.
Background technology
Marine Water-jet Propulsion Pump is a kind of core component of special boat propulsion plant, and its operation principle is that the reaction force of the current sprayed by water jet propulsion pump promotes vessel motion.Compare with the screw propulsion mode of routine, have that fltting speed is fast, efficiency is high, anti-cavitation performance is strong, and vibrating noise is low, and maneuvering performance is excellent, and be suitable for shallow-water navigation more and more pursue by market.
Water jet propulsion pump is the device for Ship Propeling service, on the end face of the pump housing, be provided with the locating hole, the installing hole that control each behaviour device processed such as boats and ships advance, retrogressing and telecontrol equipment, this some holes and pump housing installing hole have strict positional precision and dimension precision requirement on locus, to meet its manipulation required precision.In addition, one end of Pump Shaft is fixed in the installing hole of pump housing main shaft, the other end is fixed in the reverse commutator shaft bearing bore that is connected with the pump housing, because water pump is the rotation by water pump vane, feedwater promotes kinetic energy, current are sprayed from delivery port twist, in order to improve water pump propulsive efficiency, a reverse rectifier need be connected at the delivery port of pump, by reverse rectifier effect, the water that water pump exports is rectified into linear state export, makes hull obtain larger thrust, therefore pump housing two ends are that the nominal size great disparity of the installing hole of main shaft orientation is very large.Therefore, the pump housing processing request of water jet propulsion pump and the processing of the more common pump housing of difficulty improve a lot.
In sum, the pump housing difficulty of processing of water jet propulsion pump mainly contains 2 points: 1, pump housing two ends are that the installing hole nominal size great disparity of main shaft orientation is very large, and dimensional accuracy and axiality require higher; 2, between pump housing both ends of the surface, the position accuracy demand in hole is higher, and therefore difficulty of processing is large.
Summary of the invention
The purpose of this utility model is to provide a kind of pump housing Special Fixture for Machining and processing method thereof of the Marine Water-jet Propulsion Pump that can use on three shaft vertical processing center machine tools, make the machining benchmark unification mutually of the design basis of product drawing and the positioning datum of fixture and product, thus the spatial position precision met between the pump housing two ends spindle hole concentricity requirement of water jet propulsion pump and other hole, pump housing two ends and dimension precision requirement, overcome the pump housing difficulty of processing of water jet propulsion pump.
For achieving the above object, the utility model is achieved by the following technical programs.
A kind of pump housing Special Fixture for Machining of Marine Water-jet Propulsion Pump, comprise clamp body 6, described clamp body 6 is a quadrangle plate body, described clamp body 6 from center be outwards provided with successively a circular alignment pin 7 with together with annular rounded groove 62, the lower left corner of clamp body 6 is provided with the diamond positioning pin 8 that a major diameter is parallel to annular rounded groove 62 tangent line near described annular rounded groove 62 position, " recessed " font hinge seat 5 parallel with clamp body 6 its right end face is provided with away from described annular rounded groove 62 position in cornerwise upper right corner, clamp body 6 lower left corner, in the groove of hinge seat 5, the cross section be made up of length plate bearing pin 2 chain connection be provided with is " the returning face plate 1 of " " font, returning face plate 1 long slab is provided with a screwed hole, dog screw 3 is installed in screwed hole, described clamp body 6 is symmetrical is provided with pressing plate 9.
Quadrangle plate body described above is square plate body or rectangle plate body.
The inner ring 61 of annular rounded groove 62 described above and outer shroud 63 concentric with described circular alignment pin 7, and the diameter of described inner ring 61 mates with the hole A of the pump housing.
The groove depth of annular rounded groove 62 described above is less than the degree of depth of the hole A of the pump housing.
The diameter of circular alignment pin 7 described above is less than the diameter of the hole C of the pump housing, and the major diameter of described diamond positioning pin 8 is less than the diameter of the hole D of the pump housing.
Described diamond positioning pin 8 is corresponding apart from the relative position of the hole D of the pump housing apart from the hole C of the relative position of described circular alignment pin 7 and the pump housing.
The angle that returning face plate 1 described above overturns around described bearing pin 2 is for being greater than 180 °.
Dog screw 3 described above is also provided with locking nut 31.
Hinge seat 5 described above is also provided with one and dodges hole 51 for interspersed dog screw 3 in the position of the described dog screw of correspondence 3.
Use the method for the pump housing Special Fixture for Machining processing pump housing of Marine Water-jet Propulsion Pump of the present utility model:
Pump housing Special Fixture for Machining is arranged on three shaft vertical digital controlled processing central machine tool workbench, returning face plate 1 overturns downwards, dog screw 3 is made to be parked in the below of rotating shaft 2, hole A on the end face 41 of the water jet propulsion pump pump housing 4 is matched with the inner ring 61 of clamp body 6, the flange 43 of the pump housing 4 is close to dog screw 3, and pressing plate 9 compresses the flange of the pump housing 4 end face 41 end.The milling pump housing 4 end face 42, and on processing end face 42, institute is porose.
After completing, reversed end for end by the water jet propulsion pump pump housing 4 to install, returning face plate 1 upwards overturns 180 °, makes dog screw 3 be parked in the top of rotating shaft 2, coordinated with circular alignment pin 7 and diamond positioning pin 8 respectively in C hole and D hole on the end face 42 of the pump housing 4, pressing plate 9 compresses the flange of the pump housing 4 end face 42 end.Porose and groove R on the processing pump housing 4 end face 41.
After completing, continue next only processing.
The advantage of the pump housing Special Fixture for Machining of Marine Water-jet Propulsion Pump of the present utility model and beneficial effect:
The utility model structure is simple, on quadrangle clamp body, utilize same positioning centre, same secondary pressing plate, twice installation processing is carried out to the pump housing 41,42 faces, eliminate mismachining tolerance, correction error that prior art adopts twin tong to bring, efficiently solve the holes concentricity issues that on the end face of processing parts two ends, diameter great disparity is larger, solve the spatial position precision requirement in hole in both ends of the surface simultaneously, realize the machining benchmark unification mutually of the design basis of product drawing and the positioning datum of fixture and product; In addition, utilize same clamp body to complete the processing of pump housing both ends of the surface, also reduce the manufacturing cost of fixture;
Because pump housing both ends of the surface structure is asymmetric, for avoiding idle keeper and the pump housing to interfere, the dog screw of returning face plate on position block is designed to moving point, when not needing this point location, it is overturn 180 ° with returning face plate, abdicates locus, greatly increase operating efficiency.
Accompanying drawing explanation
Fig. 1 is the pump housing stereogram (processing end face 42) of Marine Water-jet Propulsion Pump;
Fig. 2 is the pump housing stereogram (processing end face 41) of Marine Water-jet Propulsion Pump;
Fig. 3 is that special fixture M-M sectional view when end face 41 is located processed by the pump housing of Marine Water-jet Propulsion Pump;
Fig. 4 is the merging view of pump housing processing end face 42 special fixture M-M section and N-N section when locating of Marine Water-jet Propulsion Pump;
Fig. 5 is the pump housing Special Fixture for Machining top view of Marine Water-jet Propulsion Pump of the present utility model.
Detailed description of the invention
For making the purpose of this utility model and technical scheme clearly, below in conjunction with accompanying drawing, the technical solution of the utility model is conducted further description.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (comprising technical term and scientific terminology) have the meaning identical with the general understanding of the those of ordinary skill in field belonging to the utility model.
When the implication of " left and right " described in the utility model refers to reader just to accompanying drawing, the left side of reader is a left side, and the right of reader is the right side, but not to specific restriction of the present utility model.
The implication of " upper and lower " described in the utility model refers to: when reader is just to accompanying drawing, reader is, is down under reader, but not to specific restriction of the present utility model.
The indirect connection that can be the direct connection between parts also can be by other parts between parts of the implication of " connection " described in the utility model.
As shown in Figure 1, 2, be the stereogram of the pump housing 4 of Marine Water-jet Propulsion Pump to be processed.In FIG, A hole is concentric with C hole, and center line is vertical with face 42; In fig. 2, A hole is large spindle hole, and C hole is primary spindle hole, and D hole is for handling oil cylinder location and installation hole, and H is installation direction control stick bearing screwed hole, and F is diesel coolant water pipe threading hole, and E is pump housing installing hole, and G is that spindle bearing holder installs screwed hole.
Shown in Fig. 3, be that special fixture M-M sectional view when end face 41 is located processed by the pump housing 4 of Marine Water-jet Propulsion Pump; In figure 3, P is connecting hole, and keeps relative position with G hole in Fig. 2, and the center of R arc keeps concentric with F hole in Fig. 2.
As Fig. 3, Fig. 4, shown in Fig. 5, for the pump housing Special Fixture for Machining of a kind of Marine Water-jet Propulsion Pump of the present utility model, comprise clamp body 6, described clamp body 6 is a rectangle plate body, described clamp body 6 from center be outwards provided with successively a circular alignment pin 7 with together with annular rounded groove 62, the lower left corner of clamp body 6 is provided with the diamond positioning pin 8 that a major diameter is parallel to annular rounded groove 62 tangent line near described annular rounded groove 62 position, " recessed " font hinge seat 5 parallel with clamp body 6 its right end face is provided with away from described annular rounded groove 62 position in cornerwise upper right corner, clamp body 6 lower left corner, in the groove of hinge seat 5, the cross section be made up of length plate bearing pin 2 chain connection be provided with is " the returning face plate 1 of " " font, returning face plate 1 long slab is provided with a screwed hole, dog screw 3 is installed in screwed hole, described clamp body 6 is symmetrical is provided with pressing plate 9.Wherein, the inner ring 61 of described annular rounded groove 62 and outer shroud 63 concentric with described circular alignment pin 7, and the diameter of described inner ring 61 mates with the hole A of the pump housing; The groove depth of described annular rounded groove 62 is less than the degree of depth of the hole A of the pump housing; The diameter of described circular alignment pin 7 is less than the diameter of the hole C of the pump housing, and the major diameter of described diamond positioning pin 8 is less than the diameter of the hole D of the pump housing; Described diamond positioning pin 8 is corresponding apart from the relative position of the hole D of the pump housing apart from the hole C of the relative position of described circular alignment pin 7 and the pump housing; The angle that described returning face plate 1 overturns around described bearing pin 2 is for being greater than 180 °; Described dog screw 3 is also provided with locking nut 31; Described hinge seat 5 is also provided with one and dodges hole 51 for interspersed dog screw 3 in the position of the described dog screw of correspondence 3.
Use the method for the pump housing Special Fixture for Machining processing pump housing of Marine Water-jet Propulsion Pump of the present utility model, comprise the following steps:
1, special fixture is arranged on three shaft vertical digital controlled processing central machine tool workbench, returning face plate 1 is overturn downwards, dog screw 3 is made to be parked in the below of rotating shaft 2, hole A on the end face 41 of the water jet propulsion pump pump housing 4 is matched with the inner ring 61 of clamp body 6, the flange 43 of the pump housing 4 is close to dog screw 3, and pressing plate 9 compresses the flange of the pump housing 4 end face 41 end.
2, process the pump housing 4 end face 42, comprising:
A, end face milling 42;
B, brill 6 F holes, bore and attack 4 screwed hole C, bore F, D, H hole bottom outlet;
C, heavy boring C, F, D, H hole,
D), right boring C, F, D hole,
E, attack H screwed hole screw thread;
3, the water jet propulsion pump pump housing 4 is reversed end for end install, returning face plate 1 is upwards overturn 180 °, make dog screw 3 be parked in the top of rotating shaft 2, coordinated with circular alignment pin 7 and diamond positioning pin 8 respectively in C hole and D hole on the end face 42 of the pump housing 4, pressing plate 9 compresses the flange of the pump housing 4 end face 42 end.
4, process the pump housing 4 end face 41, comprising:
4 screwed hole P attacked by a, brill;
B, groove milling R.
5, complete the pump housing 4 to process.
Wherein step 2, the end face milling 42 described in a, when rough milling, it is that rotating speed is: 550 ~ 650r/min that its machined parameters is selected, and cutting depth is: 3.0 ~ 4.0mm, and feed is: 0.15 ~ 0.25mm/r; When reaching the finish-milling of height dimension precision for the last time, its rotating speed is: 1000 ~ 1200r/min, and cutting depth is: 0.15 ~ 0.25mm, and feed is: 0.08 ~ 0.10mm/r; Use cutter is: vertical disc milling cutter, and cutter diameter is 125 millimeters, and cutter material is: carbide alloy.
Step 2, heavy boring described in C, it is that rotating speed is: 350 ~ 450r/min that its machined parameters is selected, and cutting depth is: 1.50 ~ 2.50mm, and feed is: 0.15 ~ 0.25mm/r; Use cutter is: adjustable boring cutter, and tool cutting edge angle is: 74 ~ 76 °, and anterior angle is: 8 ~ 10 ° of tool arc R are: 0.25mm, and cutter material is: high-speed steel; Cooling fluid is: SSGP850B water-soluble metalworking liquid.
Step 2, right boring described in d, it is that rotating speed is: 750 ~ 850r/min that its machined parameters is selected, and cutting depth is: 0.20 ~ 0.30mm, feed is: 0.10 ~ 0.15mm/r, use cutter is: adjustable boring cutter, and tool cutting edge angle is: 85 ~ 90 °, and anterior angle is: 10 ~ 12 °, tool arc R is: 0.05, and cutter material is: high-speed steel; Cooling fluid is: SSGP850B water-soluble metalworking liquid.
These are only preferably specific embodiment of the present utility model, it describes comparatively concrete and detailed, but therefore can not be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, make some equivalent transformations, these all belong to protection domain of the present utility model.
Claims (9)
1. the pump housing Special Fixture for Machining of a Marine Water-jet Propulsion Pump, comprise clamp body (6), it is characterized in that: described clamp body (6) is a quadrangle plate body, described clamp body (6) is outwards provided with a circular alignment pin (7) and annular rounded groove (62) together successively from center, the lower left corner of clamp body (6) is provided with the diamond positioning pin (8) that a major diameter is parallel to annular rounded groove (62) tangent line near described annular rounded groove (62) position, " recessed " font hinge seat (5) parallel with clamp body (6) its right end face is provided with away from described annular rounded groove (62) position in cornerwise upper right corner, clamp body (6) lower left corner, in the groove of hinge seat (5), the cross section be made up of length plate bearing pin (2) chain connection be provided with is " the returning face plate (1) of " " font, returning face plate (1) long slab is provided with a screwed hole, dog screw (3) is installed in screwed hole, described clamp body (6) is symmetrical is provided with pressing plate (9).
2. the pump housing Special Fixture for Machining of Marine Water-jet Propulsion Pump according to claim 1, is characterized in that: described quadrangle plate body is square plate body or rectangle plate body.
3. the pump housing Special Fixture for Machining of Marine Water-jet Propulsion Pump according to claim 1, it is characterized in that: the inner ring (61) of described annular rounded groove (62) and outer shroud (63) concentric with described circular alignment pin (7), and the diameter of described inner ring (61) mates with the hole A of the pump housing.
4. the pump housing Special Fixture for Machining of the Marine Water-jet Propulsion Pump according to claim 1 or 3, is characterized in that: the groove depth of described annular rounded groove (62) is less than the degree of depth of the hole A of the pump housing.
5. the pump housing Special Fixture for Machining of Marine Water-jet Propulsion Pump according to claim 1, it is characterized in that: the diameter of described circular alignment pin (7) is less than the diameter of the hole C of the pump housing, and the major diameter of described diamond positioning pin (8) is less than the diameter of the hole D of the pump housing.
6. the pump housing Special Fixture for Machining of Marine Water-jet Propulsion Pump according to claim 1 or 5, is characterized in that: described diamond positioning pin (8) apart from the relative position of described circular alignment pin (7) and the hole C of the pump housing corresponding apart from the relative position of the hole D of the pump housing.
7. the pump housing Special Fixture for Machining of Marine Water-jet Propulsion Pump according to claim 1, is characterized in that: the angle that described returning face plate (1) overturns around described bearing pin (2) is for being greater than 180 °.
8. the pump housing Special Fixture for Machining of Marine Water-jet Propulsion Pump according to claim 1, is characterized in that: described dog screw (3) is also provided with locking nut (31).
9. the pump housing Special Fixture for Machining of Marine Water-jet Propulsion Pump according to claim 1, is characterized in that: described hinge seat (5) is also provided with one and dodges hole (51) for interspersed dog screw (3) in the position of the described dog screw of correspondence (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583092.0U CN204893489U (en) | 2015-08-05 | 2015-08-05 | Boats and ships water jet propulsion pump's pump body processing special fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520583092.0U CN204893489U (en) | 2015-08-05 | 2015-08-05 | Boats and ships water jet propulsion pump's pump body processing special fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204893489U true CN204893489U (en) | 2015-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520583092.0U Expired - Fee Related CN204893489U (en) | 2015-08-05 | 2015-08-05 | Boats and ships water jet propulsion pump's pump body processing special fixture |
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|---|---|
| CN (1) | CN204893489U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033698B (en) * | 2015-08-05 | 2017-05-03 | 江苏科技大学 | Clamp special for machining pump body of marine water-jet propulsion pump |
| CN111963487A (en) * | 2020-09-01 | 2020-11-20 | 赣州市闻誉科技有限公司 | Anti-loosening bolt structure on centrifugal pump body |
-
2015
- 2015-08-05 CN CN201520583092.0U patent/CN204893489U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105033698B (en) * | 2015-08-05 | 2017-05-03 | 江苏科技大学 | Clamp special for machining pump body of marine water-jet propulsion pump |
| CN111963487A (en) * | 2020-09-01 | 2020-11-20 | 赣州市闻誉科技有限公司 | Anti-loosening bolt structure on centrifugal pump body |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151223 Termination date: 20180805 |