CN204913610U - Sloping cam plate flat stone mill anchor clamps - Google Patents
Sloping cam plate flat stone mill anchor clamps Download PDFInfo
- Publication number
- CN204913610U CN204913610U CN201520486077.4U CN201520486077U CN204913610U CN 204913610 U CN204913610 U CN 204913610U CN 201520486077 U CN201520486077 U CN 201520486077U CN 204913610 U CN204913610 U CN 204913610U
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- CN
- China
- Prior art keywords
- swash plate
- locating piece
- latch segment
- plane grinding
- grinding fixture
- Prior art date
- 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 - Fee Related
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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model discloses a sloping cam plate flat stone mill anchor clamps, its characterized in that is by positioner, leveling device and locking device triplex, through the locating pin location between positioner's locating piece and the latch segment, connect rather than the handle of the higher authority in the middle of leveling device's the clamp plate, the other end and the positioning block connection of connecting rod are connected rather than the one end of following connecting rod respectively in the both ends of clamp plate, locking device's latch segment is equipped with the locking bolt on locating the bottom plate in the latch segment, the one end of locking bolt is equipped with the round pin axle, and the other end and the ball lock of locking bolt are connected, and the positioning screw is locked with the ball and is connected, and the positioning screw crosses the bottom plate. The utility model discloses simple structure compactness, convenient operation, strong, the machining precision and efficient of commonality can be according to changed locating piece, the last round pin of regulating bottom axle mounted position by the processing part dimension to realize by the location and the locking of processing part.
Description
Technical field
The utility model relates to a kind of tool for machining inclined plate of Variable plunger pump, particularly relates to a kind of swash plate plane grinding fixture.
Background technology
Hydraulic pump is the dynamical element of whole hydraulic system.It converts the mechanical energy of prime mover (motor, internal combustion engine) pressure energy of fluid to, for hydraulic system provides the fluid of certain flow and pressure.Cam-type axial piston pump has compact conformation, radial dimension is little, inertia is little, volumetric efficiency is high, be easy to realize stepless variable and change the advantages such as oil transportation direction, therefore be more and more widely used in the high-pressure system such as engineering machinery, forcing press, especially in big-power tractor, united reaper and engineering machinery.Swash plate in Variable plunger pump is the main parts size forming and change swept volume, and the variable characteristics of variable pump is directly decided by the change of swash plate angle.So the quality of swash plate is directly connected to pump performance.But due to the consideration of performance factors, swash plate exists that design accuracy is high, out-of-shape, is unfavorable for the problems such as clamping processing.
As shown in Figure 9, Variable plunger pump forms primarily of the pump housing, plunger, piston shoes, cylinder body, valve plate, power transmission shaft, swash plate, platen, ball pivot, spring and servo variable mechanism.Power transmission shaft is through cylinder body, swash plate, and two ends bearing is bearing on housing.Be evenly equipped with 7 or 9 plungers in cylinder body, cylinder body is connect by spline and power transmission shaft.Plunger tail is equipped with piston shoes, is crushed in swash plate plane by platen and spring.On swash plate, two cylinders are arranged on pump housing lower end by pair of bearings or bearing shell, and can swing within the specific limits.Along with power transmission shaft drives the rotation of cylinder body, plunger one side does circumference rotary motion, and one side makes axially reciprocating again.Plunger displacement pump needs to adjust swash plate angle by control valve during variable, reaches the object of variable.Size between swash plate plane and the face of cylinder and Geometrical Tolerance Principle higher, difficulty of processing is larger.During conventional variable plunger displacement pump swash plate flat stone mill, need by supplemental support progressively centering, during locking, workpiece is not fixed, and locates clamping and levelling difficulty, jig Design is complicated, working (machining) efficiency is low.
Summary of the invention
The technical problems to be solved in the utility model is: provide the swash plate plane grinding fixture that a kind of project organization is simple, easy to operate, working (machining) efficiency is high, when solving inclined plate of variable piston pump flat stone mill, location clamping and levelling difficulty, the problem that jig Design is complicated, working (machining) efficiency is low.
In order to solve the problems of the technologies described above, the technical solution of the utility model there is provided a kind of swash plate plane grinding fixture, it is characterized in that, by positioner, leveling unit and locking device three part form, positioner comprises locating piece, alignment pin, is located between locating piece and latch segment by alignment pin; Leveling unit comprises connecting rod, pressing plate and handle, and be connected with the handle above it in the middle of pressing plate, the two ends of pressing plate are connected with one end of the connecting rod below it respectively, and the other end of connecting rod is connected with locating piece; Locking device comprises base plate, latch segment, clamping screw, bearing pin, ball lock and positioning screw, latch segment is located on base plate, clamping screw is provided with in latch segment, one end of clamping screw is provided with bearing pin, the other end of clamping screw is locked with ball and is connected, positioning screw is locked with ball and is connected, and positioning screw crosses base plate.
Preferably, described base plate is provided with multiple pin shaft hole matched with positioning screw.
Preferably, when described positioning screw Primary Location, the large 1 ~ 2mm of width of two described locating piece gap ratio parts to be processed.
Preferably, the left and right gap L between described locating piece and base plate controls between 0.05 ~ 0.08mm.
Preferably, the height H in the gap up and down between described locating piece and base plate controls between 0.2 ~ 0.3mm.
Preferably, the structure of described ball lock is spherical structure.
Preferably, locked by soket head cap screw between described locating piece and latch segment.
Preferably, described connecting rod is connected by lining with between locating piece.
Preferably, threaded is provided with in described lining.
The utility model is simple and compact for structure, easy to operate, highly versatile, machining accuracy and efficiency are high, locating piece can be changed according to part to be processed size, regulating base board upper pin installation site, thus realize location and the locking of part to be processed, solve traditional swash plate add man-hour need by supplemental support progressively centering, during locking, workpiece is not fixed.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of swash plate plane grinding fixture;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 is the B-B sectional view of Fig. 1;
Fig. 4 is swash plate location schematic diagram;
Fig. 5 is that swash plate compresses schematic diagram;
Fig. 6 is a kind of swash plate locating piece machining sketch chart of swash plate plane grinding fixture;
Fig. 7 is the levelling and locking state figure of a kind of swash plate of swash plate plane grinding fixture;
Fig. 8 is a kind of swash plate machining state figure of swash plate plane grinding fixture;
Fig. 9 is traditional swash plate alignment device schematic diagram.
Detailed description of the invention
For making the utility model become apparent, hereby with preferred embodiment, and accompanying drawing is coordinated to be described in detail below.
The utility model is a kind of swash plate plane grinding fixture, and as shown in Figure 1-Figure 3, it comprises positioner, leveling unit and locking device three part; Swash plate adds locates with the swash plate face of cylinder R man-hour, and cylinder end face compresses, as shown in Figure 4 and Figure 5.
Positioner is by locating piece 8 (two pieces), soket head cap screw 7 and alignment pin 10 form, located by alignment pin 10 between locating piece 8 and latch segment 2 and locked by soket head cap screw 7, locating piece 8 adds man-hour with swash plate setting circle post holes for benchmark, the processing corresponding alignment pin in both sides and screw hole, ensure position degree and symmetry requirement in figure, Linear cut is carried out separately by drawing again from line of cut, thus ensure dowel hole and the requirement of positioning cylinder hole site, improve the positioning precision of part.
Leveling unit is made up of parts such as connecting rod 9, pressing plate 11, handle 12, lining 13 and threadeds 14, be connected with the handle 12 above it in the middle of pressing plate 11, the two ends of pressing plate 11 are connected with one end of the connecting rod 9 below it respectively, the other end of connecting rod 9 is connected with locating piece 8, relatively rotate because leveling unit and locating piece 8 in use exist, there is wearability and the higher lining 13 of hardness so increase in both hinged places, namely be connected by lining 13 between connecting rod 9 with locating piece 8, and be fixedly connected with by the threaded 14 in lining 13.This lining 13 uses alloy steel material, by Quenching Treatment, improves the service life of fixture.
Locking device is made up of base plate 1, latch segment 2, clamping screw 3, bearing pin 4, ball lock 5 and positioning screw 6, latch segment 2 is arranged on base plate 1, clamping screw 3 is had in latch segment 2, one end of clamping screw 3 is provided with bearing pin 4, the other end and the ball of clamping screw 3 are locked 5 and are connected, positioning screw 6 and ball are locked 5 and are connected, and positioning screw 6 crosses base plate 1.In use procedure, according to the size of processed swash plate, the spacing between two locating pieces 8 is tentatively regulated by positioning screw 6, swash plate is placed on locating piece 8, operating grip 12 is by levelling for swash plate plane, tighten clamping screw 3, can carry out flat stone mill processing, levelling, locking and machining sketch chart are respectively as shown in Figure 7 and Figure 8.Because clamping screw 3 operates more ordinary, high to the locking plane hardness requirement of bolt, in latch segment 2, install the bearing pin 4 that a hardness and the higher alloy steel material of wearability are made, thus reduce the requirement of latch segment material, this latch segment 2 uses common low carbon Steel material by modifier treatment.
Consider similar, the in different size situation of swash plate shape in Variable plunger pump series of products, by the pin shaft hole base plate 1 of locking device processed multiple position and positioning screw 6 and match, be applicable to the swash plate processing the different size of homologous series.This locking device is the general purpose accessory of series of products fixture, when processing different swash plate, according to different part dimensions by changing locating piece 8 and regulating latch segment 2 position.
When positioning screw 6 Primary Location, ensure the large 1 ~ 2mm of spacing between two locating piece 8 gap ratios processed swash plate cylinder, this size can ensure that part is more easily installed, and during locking, clamping screw 3 is locked 5 too much without the need to being screwed into ball simultaneously.Consider that the locking angle of each part is different, ball lock 5 is designed to spherical structure, and as shown in S φ in Fig. 3, spherical structure is applicable to the locking of different angles, and the design of spherical structure reaches rotatably mounted, easy for installation, processes simple advantage.
Because workpiece is in locking and unloading process, latch segment 2 slides on base plate 1, adopts matched in clearance between latch segment 2 and base plate 1, so that the handling of part.As shown in Figure 3, the control of the height H in left and right gap L between locating piece 8 and base plate 1 and upper and lower gap is noted in design process, wherein the size L in gap, left and right controls between 0.05 ~ 0.08mm, height H controls between 0.2 ~ 0.3mm, this gap can ensure that locating piece 8 slides on base plate 1 preferably, makes clamping screw 3 and ball lock 5 according to the machining deviation of part, regulates the spacing of two locating pieces 8, swash plate both ends of the surface are locked, the machining accuracy of part can not be affected because of excesssive gap.
Consider that the frequency of utilization of clamping screw 3 is higher, latch segment 2 increases the bearing pin 4 fixing and locking bolt 3 had compared with high-wearing feature and hardness, and this bearing pin 4 uses steel alloy to process, thus reduces material and the hardness requirement of latch segment 2.
Part adds man-hour, is adsorbed on the workbench of surface grinding machine by the base plate 1 of locking device, and part free state is placed on locating piece 8, located, and leveling unit is levelling by locating piece 8, and clamping screw 3 being locked workpiece can process simultaneously.
Claims (9)
1. a swash plate plane grinding fixture, it is characterized in that, by positioner, leveling unit and locking device three part form, positioner comprises locating piece (8), alignment pin (10), by alignment pin (10) location between locating piece (8) and latch segment (2); Leveling unit comprises connecting rod (9), pressing plate (11) and handle (12), be connected with the handle (12) above it in the middle of pressing plate (11), the two ends of pressing plate (11) are connected with one end of the connecting rod (9) below it respectively, and the other end of connecting rod (9) is connected with locating piece (8); Locking device comprises base plate (1), latch segment (2), clamping screw (3), bearing pin (4), ball lock (5) and positioning screw (6), latch segment (2) is located on base plate (1), clamping screw (3) is provided with in latch segment (2), one end of clamping screw (3) is provided with bearing pin (4), the other end of clamping screw (3) is locked (5) and is connected with ball, positioning screw (6) is locked (5) and is connected with ball, positioning screw (6) crosses base plate (1).
2. a kind of swash plate plane grinding fixture as claimed in claim 1, is characterized in that, described base plate (1) is provided with multiple pin shaft hole matched with positioning screw (6).
3. a kind of swash plate plane grinding fixture as claimed in claim 1, is characterized in that, when described positioning screw (6) Primary Location, and the large 1 ~ 2mm of width of described two locating pieces (8) gap ratio part to be processed.
4. a kind of swash plate plane grinding fixture as claimed in claim 1, is characterized in that, the left and right gap L between described locating piece (8) and base plate (1) controls between 0.05 ~ 0.08mm.
5. a kind of swash plate plane grinding fixture as described in claim 1 or 4, is characterized in that, the height H in the gap up and down between described locating piece (8) and base plate (1) controls between 0.2 ~ 0.3mm.
6. a kind of swash plate plane grinding fixture as claimed in claim 1, is characterized in that, the structure of described ball lock (5) is spherical structure.
7. a kind of swash plate plane grinding fixture as claimed in claim 1, is characterized in that, by soket head cap screw (7) locking between described locating piece (8) and latch segment (2).
8. a kind of swash plate plane grinding fixture as claimed in claim 1, is characterized in that, described connecting rod (9) is connected by lining (13) with between locating piece (8).
9. a kind of swash plate plane grinding fixture as claimed in claim 8, is characterized in that, is provided with threaded (14) in described lining (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520486077.4U CN204913610U (en) | 2015-07-07 | 2015-07-07 | Sloping cam plate flat stone mill anchor clamps |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520486077.4U CN204913610U (en) | 2015-07-07 | 2015-07-07 | Sloping cam plate flat stone mill anchor clamps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204913610U true CN204913610U (en) | 2015-12-30 |
Family
ID=54962789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520486077.4U Expired - Fee Related CN204913610U (en) | 2015-07-07 | 2015-07-07 | Sloping cam plate flat stone mill anchor clamps |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204913610U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955118A (en) * | 2019-04-20 | 2019-07-02 | 东莞市普华精密机械有限公司 | A kind of installation method of semi arch part leveling unit and leveling unit |
-
2015
- 2015-07-07 CN CN201520486077.4U patent/CN204913610U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109955118A (en) * | 2019-04-20 | 2019-07-02 | 东莞市普华精密机械有限公司 | A kind of installation method of semi arch part leveling unit and leveling unit |
| CN109955118B (en) * | 2019-04-20 | 2023-10-20 | 东莞市普华精密机械有限公司 | Semi-circular arc part leveling device and installation method thereof |
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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: 20151230 Termination date: 20170707 |