CN204321837U - The holding device that a kind of power of top is adjustable and hold out against face processing tool - Google Patents
The holding device that a kind of power of top is adjustable and hold out against face processing tool Download PDFInfo
- Publication number
- CN204321837U CN204321837U CN201420683058.6U CN201420683058U CN204321837U CN 204321837 U CN204321837 U CN 204321837U CN 201420683058 U CN201420683058 U CN 201420683058U CN 204321837 U CN204321837 U CN 204321837U
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- guide pillar
- sleeve
- holding device
- right cavity
- cavity
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Abstract
The utility model discloses the holding device that a kind of power of top is adjustable, provide pressure, comprise: axle for during grinding missile antenna cover outer surface, described axle comprises the guide pillar, staight shank, cone shoulder and the taper shank that connect successively, is provided with the shaft shoulder between guide pillar and staight shank; Sleeve, is provided with step in the middle part of described sleeve, and sleeve is spaced apart left cavity and right cavity by described step, and left cavity is identical with right cavity internal diameter, and described guide pillar is arranged in right cavity, and the height of step is less than the gap between guide pillar and right cavity; Described right cavity depth is less than guide pillar length; Described sleeve along the center axis thereof of guide pillar and can move back and forth.The utility model can be used for missile-borne radome accurate, reliably hold out against, meet missile antenna cover outer surface mill processing or measure hold out against needs.
Description
Technical field
The utility model relates to the adjustable holding device of a kind of power of top and holds out against face processing tool.
Background technology
Antenna house be in guided missile gas collection move, structure and electric property in the specialities of one, have very important impact to the performance of guidance system.It is the head of guided missile, play a part the infringement of guidance system from severe environmental conditions during Pneumatic power flight, it is again a link of missile guidance control loop, must ensure the distortionless launching and receiving of antenna microwave energy, the wave transmission rate, aiming-line error etc. of antenna house will directly affect the operating distance of guided missile, miss distance and stability.
After antenna house processed finished products, need by testing its electric property.Find in test, due to the reason such as inhomogeneities of mismachining tolerance, antenna house internal material, cause some antennas cover electrical property to there is local off-gage phenomenon, because antenna house cost is higher, the producing cost of every part antenna house is in tens thousand of unit.For reducing production cost, under the condition that structure allows, can adopt and grinding is carried out to overproof region, by changing the mechanical thickness of antenna house to revise its electric property.Consider at the stock removal of finished product stage antenna house less, the mode of outer surface grinding can be adopted to carry out, for ensureing the reliable of antenna house and accurately clamping, need special holding device when designing a set of antenna house outer surface grinding.
The holding device during grinding of antenna house outer surface need possess following requirement:
(1) top structure needs for inner conical.Head due to antenna house is sharp cone distal or hemispherical, and center has not allowed addendum cone hole, and the sharp cone distal thimble that lathe can not be used general holds out against, and needs to hold out against structure according to the profile design of antenna house head.
(2) power of pushing up is adjustable.Radome material generally selects the fragile material of quartz-ceramics and so on, if pressure is too small, antenna house can be caused to be moved in grinding process and to affect grinding accuracy and grinding surface quality, and power of pushing up is excessive, antenna house can be caused to ftracture or produce internal tiny crack, causing antenna house to scrap, therefore need accurately to control pressure, and existing ejector pin for lathe top power can not accurately control, operating personnel can only hold out against by rule of thumb, cannot holding out against as antenna house.
(3) higher precision need be possessed.The performance correction of antenna house is Precision Machining, and holding device must have higher precision, the grinding accuracy of guarantee antenna house.
In addition, time due to antenna house accurate grinding, the speed of mainshaft is only 30 r/min ~ 50 r/min, and grinding force is little, therefore to the rotating speed of holding device and requirement for bearing capacity not high.
Utility model content
The purpose of this utility model is provide the adjustable holding device of a kind of power of top and hold out against face processing tool, can be used for missile-borne radome accurate, reliably hold out against, meet missile antenna cover outer surface mill processing or measure hold out against needs.
In order to achieve the above object, the utility model is achieved through the following technical solutions:
The holding device that power of pushing up is adjustable, provides pressure for during grinding missile antenna cover outer surface, comprises:
Axle, described axle comprises the guide pillar, staight shank, cone shoulder and the taper shank that connect successively, is provided with the shaft shoulder between guide pillar and staight shank;
Sleeve, is provided with step in the middle part of described sleeve, and sleeve is spaced apart left cavity and right cavity by described step, and left cavity is identical with right cavity internal diameter, and described guide pillar is arranged in right cavity, and the height of step is less than the gap between guide pillar and right cavity;
Described right cavity depth is less than guide pillar length;
Described sleeve along the center axis thereof of guide pillar and can move back and forth.
Described axle comprises a back-up ring further, and described back-up ring is arranged on one end of guide pillar, and is the one end away from staight shank;
The external diameter of described back-up ring is between step internal diameter and left cavity internal diameter;
Described step coordinates with back-up ring, for limiting moving back and forth of sleeve.
Holding device comprises a top further;
Described top is arranged in left cavity;
Described top is provided with inner conical surface, for holding out against antenna house.
Holding device comprises a guide pin bushing further, and described guide pin bushing is arranged in right cavity, and between sleeve and guide pillar, and coordinate with guide pillar, make sleeve to move back and forth along guide pillar or to rotate;
The length of described guide pin bushing is less than the degree of depth of right cavity.
Holding device comprises a bearing further, and described bearing is arranged in right cavity, and between sleeve and guide pillar, and be connected with guide pin bushing one end away from step.
Holding device comprises a spring further, and described spring is arranged in right cavity, is set on described guide pillar, and between bearing and the shaft shoulder.
Holding device comprises a lining further, and described lining comprises interconnective Part I and Part II;
The Part I of described lining is arranged between bearing and spring;
The Part II of described lining is arranged between guide pillar and spring.
“ Shang is Chenged in described lining cross section " shape.
For the processing tool in the face that holds out against of the adjustable holding device of the power of pushing up, for connecting lathe, this processing tool comprises:
One cylindrical body, one end connects the main shaft of lathe, and its other end connects the sleeve of holding device.
The holding device that a kind of power of top of the utility model is adjustable and the face processing tool of holding out against compared with prior art have the following advantages: top adopts nylon material to make, and prevents top from splitting or scratches antenna house; Sleeve realizes moving back and forth along its axis direction by guide pillar guide sleeve structure; Sleeve realizes the rotation along its axis direction by bearing; Be provided with spring, be convenient to the adjustment of pre-jacking force, guide pillar is provided with scale, can according to the suitable top force value of the concrete size Selection of antenna house, and top power scope is 0 N ~ 500 N; Adopt back-up ring to coordinate with ledge structure, realize carrying out position limitation protection to sleeve, prevent sleeve and axle from mutually throwing off; After holding device assembling, carrying out Combined machining to holding out against inner conical surface, ensureing top and the concentricity of axle taper shank part, for preventing the rotation of moving sleeve in turning process, being provided with processing tool and sleeve is fixed.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of the adjustable holding device of a kind of power of top of the utility model;
Fig. 2 is the sectional view of Fig. 1;
Fig. 3 is the annexation schematic diagram of lining;
Fig. 4 is the Combined machining figure that the adjustable holding device of a kind of power of top holds out against face.
Detailed description of the invention
Below in conjunction with accompanying drawing, by describing a preferably specific embodiment in detail, the utility model is further elaborated.
As shown in Figures 1 and 2, the holding device that power of pushing up is adjustable, provides pressure for during grinding missile antenna cover outer surface, comprises: axle, described axle comprises the guide pillar 101, staight shank 102, cone shoulder 103 and the taper shank 104 that connect successively, is provided with the shaft shoulder 1011 between guide pillar 101 and staight shank 102; Sleeve, be provided with step 201 in the middle part of it, sleeve is spaced apart left cavity 202 and right cavity 203 by described step 201, and left cavity 202 is identical with right cavity 203 internal diameter, and described guide pillar 101 is arranged in right cavity 203, the height of step 201 is less than the gap between guide pillar 101 and right cavity 203; Described right cavity 203 degree of depth is less than guide pillar 101 length; Described sleeve along the center axis thereof of guide pillar 101 and can move back and forth, and adjusts pressure by displacement.
As shown in Figure 1, in the present embodiment, staight shank 102 is provided with scale value, can be used for reading top force value, cone shoulder 103 is in order to avoid top force value is excessive, move to when sleeve and bore after shoulder 103 contacts, stop moving right under the restriction of cone shoulder 103, taper shank 104 adopts Mohs 4# tapering, coordinate with tail stock for machine tool, the height of the shaft shoulder 1011 is 1mm, length is 8mm.
As shown in Figure 2, axle comprises a back-up ring 105 further, and described back-up ring 105 is arranged on one end of guide pillar 101, fastening with guide pillar 101 by a screw 1051, and is the one end away from staight shank 102; The external diameter of described back-up ring 105 is between step 201 internal diameter and left cavity 202 internal diameter; Described step 201 coordinates with back-up ring 105, for limiting moving back and forth of sleeve.
As shown in Figure 1, holding device comprises a top 30 further; Described top 30 is arranged in left cavity 202; Described top 30 is provided with inner conical surface, for holding out against antenna house.Come directly towards 30 in the present embodiment and be fixed on the left cavity 201 of sleeve with epoxy glue, top 30 adopts nylon material to make, and prevent top from splitting or scratch antenna house, the angle of inner conical surface is 40, for holding out against antenna house head.
As shown in Figure 2, holding device also comprises a guide pin bushing 40, and described guide pin bushing 40 is arranged in right cavity 203, and between sleeve and guide pillar 101, and coordinate with guide pillar 101, make sleeve to move back and forth along guide pillar 101 or to rotate; The length of described guide pin bushing 40 is less than the degree of depth of right cavity 203.In the present embodiment, guide pin bushing 40 is with in the right cavity 203 of interference fit press-in sleeve, and guide pin bushing 40 and sleeve are combined as a whole.
One bearing 50, described bearing 50 is arranged in right cavity 203, and between sleeve and guide pillar 101, and be connected with guide pin bushing 40 one end away from step 201.
As shown in Figure 2, holding device also comprises a bearing 50, and described bearing 50 is arranged in right cavity 203, and between sleeve and guide pillar 101, and be connected with guide pin bushing 40 one end away from step 201; Described bearing 50 is for realizing the high-speed rotation of guide pin bushing 40 along guide pillar 101.
As shown in Figure 2, holding device also comprises a spring 60, and described spring 60 is arranged in right cavity 203, is set on described guide pillar 101, and between bearing 50 and the shaft shoulder 1011, for providing the opposition of pretightning force.Step 201 and back-up ring 105 are for avoiding power release rear sleeve in top to depart from axle under the elastic force effect of spring 60.
As shown in Figures 2 and 3, holding device also comprises a lining 70, and described lining 60 comprises interconnective Part I and Part II; The Part I of described lining 60 is arranged between bearing 50 and spring 60; The Part II of described lining 60 is arranged between guide pillar 101 and spring 60.“ Shang is Chenged in lining 70 cross section " shape.
As shown in Figure 3, the internal diameter of bearing 50 must be greater than the external diameter of guide pillar 101, if the two is measure-alike, because both are standard component, it coordinates for interference fit, bearing 50 is installed on guide pillar 101, cannot move horizontally along guide pillar 101, therefore adopt lining 70 to carry out transition, lining 70 is interference fit with coordinating of bearing 50, and and leave the gap of about 0.01mm between guide pillar 101, make bearing 50 and lining 70 can together with move horizontally along guide pillar 101.Equally, spring 60 external diameter must be greater than the external diameter of guide pillar 101, otherwise the resistance that spring 60 is subject to when compressing or stretch can be comparatively large, therefore also needs to carry out transition with lining, for avoiding spring 60 to move up and down, spring 60 two ends are arranged on the shaft shoulder 1011 on lining and guide pillar 101 respectively.Lining 70 also evenly transmits for the elastic force of spring 60 simultaneously.The movement of sleeve can make bearing 50 move, and by lining 70 Compress Spring 60, spring 60 is made to produce the deboost equal with top power, stop sleeve movement further, because the decrement of spring 60 and top power are directly proportional, by the decrement reflection top power of spring 60, and the scale of mark directly reads top force value on staight shank 102, every lattice representative top force value is 100 N, and top power scope is 0 N ~ 500 N.
For ensureing top 30 and the concentricity of axle taper shank 104, coming directly towards 30 reserved allowance before processing, after holding device assembling, carrying out Combined machining to holding out against inner conical surface.As shown in Figure 4, a kind of processing tool of the face that holds out against of the holding device adjustable for the power of pushing up, comprises for connecting this processing tool in lathe 100, figure: cylindrical body 80 one end connects lathe spindle 1001, and its other end connects the sleeve 20 of holding device.Axle taper shank 104 and lathe spindle 1001 taper hole all adopt Morse's taper, when tapering is number identical, axle taper shank 104 can be directly installed in lathe spindle 1001 taper hole, when tapering is number not identical, available tapered sleeve 90 connects, tapered sleeve 90 is set on the taper shank 104 of described holding device, connects the taper hole of described lathe spindle 1001.
Man-hour sleeve 20 is added along central axis for preventing the face that holds out against, adopt cylindrical body 80 pairs of sleeves 20 to be fixed, one end is fastened on lathe spindle 1001 by mounting screw 801, and another end is provided with and holds out against hole, adopt 4 holding screws, 802 tight sleeves 20, thus prevent the rotation of sleeve 20.
The installation step of described holding device is:
S1, guide pin bushing 40 to be pressed in the right cavity 203 of sleeve, and to be pressed onto and to contact with step 201;
S 2, by spring 60, lining 70, bearing 50 according to tipping on axle guide pillar 101;
S 3, guide pillar 101 to be loaded in the endoporus of guide pin bushing 40, make guide pillar 101 end face exceed sleeve step 201 surface;
S 4, back-up ring 105 screw 1051 is fixed on guide pillar 101;
S 5, top 30 epoxy glue is bonded in left cavity 202;
S 6, with processing tool 80, top 30 inner conical surface to be processed on lathe.
Although content of the present utility model has done detailed introduction by above preferred embodiment, will be appreciated that above-mentioned description should not be considered to restriction of the present utility model.After those skilled in the art have read foregoing, for multiple amendment of the present utility model and substitute will be all apparent.Therefore, protection domain of the present utility model should be limited to the appended claims.
Claims (9)
1. push up the holding device that power is adjustable, provide pressure for during grinding missile antenna cover outer surface, it is characterized in that, comprise:
Axle, described axle comprise connect successively guide pillar (101), staight shank (102), cone shoulder (103) and taper shank (104), be provided with the shaft shoulder (1011) between guide pillar (101) and staight shank (102);
Sleeve, step (201) is provided with in the middle part of described sleeve, sleeve is spaced apart left cavity (202) and right cavity (203) by described step (201), left cavity (202) is identical with right cavity (203) internal diameter, and described guide pillar (101) is arranged in right cavity (203), the height of step (201) is less than the gap between guide pillar (101) and right cavity (203);
Described right cavity (203) degree of depth is less than guide pillar (101) length;
Described sleeve along the center axis thereof of guide pillar (101) and can move back and forth.
2. holding device as claimed in claim 1, it is characterized in that, described axle comprises a back-up ring (105) further, and described back-up ring (105) is arranged on one end of guide pillar (101), and is the one end away from staight shank (102);
The external diameter of described back-up ring (105) is between step (201) internal diameter and left cavity (202) internal diameter;
Described step (201) coordinates with back-up ring (105), for limiting moving back and forth of sleeve.
3. holding device as claimed in claim 1 or 2, is characterized in that, comprise a top (30) further;
Described top (30) is arranged in left cavity (202);
Described top (30) is provided with inner conical surface, for holding out against antenna house.
4. holding device as claimed in claim 1 or 2, it is characterized in that, comprise a guide pin bushing (40) further, described guide pin bushing (40) is arranged in right cavity (203), and be positioned between sleeve and guide pillar (101), and coordinate with guide pillar (101), make sleeve to move back and forth along guide pillar (101) or to rotate;
The length of described guide pin bushing (40) is less than the degree of depth of right cavity (203).
5. holding device as claimed in claim 4, it is characterized in that, comprise a bearing (50) further, described bearing (50) is arranged in right cavity (203), and be positioned between sleeve and guide pillar (101), and be connected with guide pin bushing (40) one end away from step (201).
6. holding device as claimed in claim 4, it is characterized in that, comprise a spring (60) further, described spring (60) is arranged in right cavity (203), be set on described guide pillar (101), and be positioned between bearing (50) and the shaft shoulder (1011).
7. holding device as claimed in claim 6, it is characterized in that, comprise a lining (70) further, described lining (60) comprises interconnective Part I and Part II;
The Part I of described lining (60) is arranged between bearing (50) and spring (60);
The Part II of described lining (60) is arranged between guide pillar (101) and spring (60).
8. holding device as claimed in claim 7, is characterized in that, “ Shang is Chenged in described lining (70) cross section " shape.
9., for the processing tool in the face that holds out against of the adjustable holding device of the power of pushing up, for connecting lathe, it is characterized in that, this processing tool comprises:
One cylindrical body (80), one end connects the main shaft of lathe, and its other end connects the sleeve (20) of holding device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683058.6U CN204321837U (en) | 2014-11-14 | 2014-11-14 | The holding device that a kind of power of top is adjustable and hold out against face processing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420683058.6U CN204321837U (en) | 2014-11-14 | 2014-11-14 | The holding device that a kind of power of top is adjustable and hold out against face processing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204321837U true CN204321837U (en) | 2015-05-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420683058.6U Expired - Fee Related CN204321837U (en) | 2014-11-14 | 2014-11-14 | The holding device that a kind of power of top is adjustable and hold out against face processing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204321837U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406466A (en) * | 2018-02-12 | 2018-08-17 | 宝鸡石油机械有限责任公司 | A kind of valve chamber hole end surface grinding device |
-
2014
- 2014-11-14 CN CN201420683058.6U patent/CN204321837U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406466A (en) * | 2018-02-12 | 2018-08-17 | 宝鸡石油机械有限责任公司 | A kind of valve chamber hole end surface grinding 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: 20150513 Termination date: 20211114 |
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| CF01 | Termination of patent right due to non-payment of annual fee |