CN204036039U - The return plate outer ring positioning processing device of cam-type axial piston pump - Google Patents
The return plate outer ring positioning processing device of cam-type axial piston pump Download PDFInfo
- Publication number
- CN204036039U CN204036039U CN201420371064.8U CN201420371064U CN204036039U CN 204036039 U CN204036039 U CN 204036039U CN 201420371064 U CN201420371064 U CN 201420371064U CN 204036039 U CN204036039 U CN 204036039U
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- China
- Prior art keywords
- plate
- return plate
- stop screw
- return
- outer ring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000003825 pressing Methods 0.000 claims abstract description 20
- 238000006073 displacement reaction Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000003754 machining Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
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- Reciprocating Pumps (AREA)
Abstract
The utility model relates to hydraulic pressure plunger displacement pump manufacture field, particularly relates to a kind of return plate outer ring processing tool of plunger displacement pump.A kind of return plate outer ring positioning processing device of cam-type axial piston pump, comprise base plate, pressing plate, stop screw and set bolt, the front of return plate is placed on base plate, described pressing plate is pressed in the back side of return plate, base plate, pressing plate and return plate three, through pressing plate and return plate, are fixed by set bolt by described set bolt head; Described stop screw is fixedly mounted on base plate, and the screw rod side of stop screw is close to the outer wall of return plate, and stop screw has multiple, multiple described stop screw with the axle center of return plate for center of circle annular array.The centre bore that the utility model utilizes return plate itself to carry, coordinates pressing plate and stop screw location, makes workpiece uniform force in process, the deflection produced is less, improve the final size precision of part, ensure that plunger displacement pump overall precision, improve the stability of pump running.
Description
Technical field
The utility model relates to hydraulic pressure plunger displacement pump manufacture field, particularly relates to a kind of return plate outer ring processing tool of plunger displacement pump.
Background technology
For OS-A4V180 and OS-A4V250, the return plate of cam-type axial piston pump generally presss from both sides cylindrical, because the structure of its nine plunger holes can cause clamping distortion adding man-hour.All there is required precision in nine holes to indexing accuracy and integral planar; Return plate as shown in Figure 1, this part belongs to stephanoporate thin wall part, except the precision prescribeies such as the flatness to two planes, the depth of parallelism and roughness are higher, the positional precision in nine holes and the designing requirement of central spherical endoporus also very high, so the clamping deformation in process directly has influence on follow-up machining accuracy, rear road machining accuracy is caused to ensure.
Summary of the invention
Technical problem to be solved in the utility model is to provide the return plate outer ring positioning processing device of cam-type axial piston pump, utilize pressing plate and stop screw integrated positioning, solve the clamping that conventional lathe three-jaw clamps cylindrical, easily cause the defect that thin-walled porous member work in-process is out of shape, improve the final size precision of part, ensure that plunger displacement pump overall precision.
The utility model is achieved in that a kind of return plate outer ring positioning processing device of cam-type axial piston pump, comprise base plate, pressing plate, stop screw and set bolt, the front of return plate is placed on base plate, described pressing plate is pressed in the back side of return plate, base plate, pressing plate and return plate three, through pressing plate and return plate, are fixed by set bolt by described set bolt head; Described stop screw is fixedly mounted on base plate, and the screw rod side of stop screw is close to the outer wall of return plate, and stop screw has multiple, multiple described stop screw with the axle center of return plate for center of circle annular array.
Described stop screw has more than three or three.
Described stop screw has three, and three stop screws become equilateral triangle arrangement to recline the outer wall of return plate.
Described stop screw has four, and four stop screw quadrates arrange the outer wall of the return plate that reclines.
The return plate outer ring positioning processing device of the utility model cam-type axial piston pump utilizes pressing plate and stop screw integrated positioning, the centre bore that the set bolt of clam member utilizes return plate itself to carry, without the need to changing the existing structure of return plate; The installation way clamping cylindrical with the lathe three-jaw of routine first than, positioning tool of the present utility model makes workpiece uniform force in process, and the deflection produced is less, solve thin-walled porous member yielding problem in process, improve the final size precision of part, ensure that plunger displacement pump overall precision, improve the stability of pump running.
Accompanying drawing explanation
Fig. 1 is processed return plate structural representation;
Fig. 2 be the return plate outer ring positioning processing device of the utility model cam-type axial piston pump clamp schematic diagram.
In figure: 1 base plate, 2 pressing plates, 3 stop screws, 4 return plates, 5 set bolts.
Detailed description of the invention
Below in conjunction with specific embodiment, set forth the utility model further.Should be understood that these embodiments are only not used in restriction scope of the present utility model for illustration of the utility model.In addition should be understood that those skilled in the art can make various changes or modifications the utility model, and these equivalent form of values fall within the application's appended claims limited range equally after the content of having read the utility model statement.
Embodiment 1
As shown in Figure 2, a kind of return plate outer ring positioning processing device of cam-type axial piston pump, comprise base plate 1, pressing plate 2, stop screw 3 and set bolt 5, the front of return plate 4 is placed on base plate 1, described pressing plate 2 is pressed in the back side of return plate 4, base plate 1, pressing plate 2, through pressing plate 2 and return plate 4, are fixed with return plate 4 three by set bolt 5 by described set bolt 5 head; Described stop screw 3 is fixedly mounted on base plate 1, and the screw rod side of stop screw 3 is close to the outer wall of return plate 4, and stop screw 3 has multiple, multiple described stop screw 3 with the axle center of return plate 4 for center of circle annular array.
In order to ensure that return plate 4 can not rock, affect machining accuracy, stop screw 3 needs more than three or three usually, to ensure restriction return plate 4 rocking in whole plane; Equilateral triangle arrangement is become, quadrate arrangement when stop screw 3 is four, the outer wall of the stop screw 3 that reclines by that analogy when stop screw 3 is three.In the present embodiment, described stop screw 3 has four, and four stop screw 3 quadrates arrange the outer wall of the stop screw 3 that reclines.
Claims (4)
1. the return plate outer ring positioning processing device of a cam-type axial piston pump, it is characterized in that: comprise base plate (1), pressing plate (2), stop screw (3) and set bolt (5), the front of return plate (4) is placed on base plate (1), described pressing plate (2) is pressed in the back side of return plate (4), base plate (1), pressing plate (2), through pressing plate (2) and return plate (4), are fixed with return plate (4) three by set bolt (5) by described set bolt (5) head; Described stop screw (3) is fixedly mounted on base plate (1), the screw rod side of stop screw (3) is close to the outer wall of return plate (4), stop screw (3) is total multiple, and multiple described stop screw (3) is center of circle annular array with the axle center of return plate (4).
2. the return plate outer ring positioning processing device of cam-type axial piston pump as claimed in claim 1, is characterized in that: described stop screw (3) has more than three or three.
3. the return plate outer ring positioning processing device of cam-type axial piston pump as claimed in claim 2, it is characterized in that: described stop screw (3) has three, three stop screws (3) become equilateral triangle arrangement to recline the outer wall of return plate (4).
4. the return plate outer ring positioning processing device of cam-type axial piston pump as claimed in claim 2, it is characterized in that: described stop screw (3) has four, four stop screw (3) quadrates arrange the outer wall of return plate (4) that recline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371064.8U CN204036039U (en) | 2014-07-07 | 2014-07-07 | The return plate outer ring positioning processing device of cam-type axial piston pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420371064.8U CN204036039U (en) | 2014-07-07 | 2014-07-07 | The return plate outer ring positioning processing device of cam-type axial piston pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204036039U true CN204036039U (en) | 2014-12-24 |
Family
ID=52236747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420371064.8U Expired - Lifetime CN204036039U (en) | 2014-07-07 | 2014-07-07 | The return plate outer ring positioning processing device of cam-type axial piston pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204036039U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153753A (en) * | 2019-06-28 | 2019-08-23 | 杭州力龙液压有限公司 | Fixed device and Boring device |
-
2014
- 2014-07-07 CN CN201420371064.8U patent/CN204036039U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110153753A (en) * | 2019-06-28 | 2019-08-23 | 杭州力龙液压有限公司 | Fixed device and Boring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141224 |