CN203356603U - Expansion valve clamp - Google Patents
Expansion valve clamp Download PDFInfo
- Publication number
- CN203356603U CN203356603U CN 201320437934 CN201320437934U CN203356603U CN 203356603 U CN203356603 U CN 203356603U CN 201320437934 CN201320437934 CN 201320437934 CN 201320437934 U CN201320437934 U CN 201320437934U CN 203356603 U CN203356603 U CN 203356603U
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- CN
- China
- Prior art keywords
- expansion valve
- hole
- clamp body
- positioning collet
- clamp
- 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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Abstract
The utility model discloses a clamp special for an expansion valve. The expansion valve clamp comprises a clamp body (1), a locating plate (2) and a locating chuck (4), and is characterized in that a workpiece clamping area (11) matched with the expansion valve (10) is arranged on the clamp body (1) in the radial direction, a machining hole (16) for machining the expansion valve (10) is further formed in the corresponding end portion of the workpiece clamping area (11), the locating chuck (4) is in sliding connection with the other end of the clamp body (1) to enable the locating chuck (4) to be capable of axially moving relative to the clamp body (1), and the locating plate (2) which is fixedly connected with the end portion of the locating chuck (4) is further arranged inside the workpiece clamping area (11). The expansion valve clamp is high in locating accuracy and reliable in clamping, a clamped blank is evenly stressed, and the machining accuracy and the machining efficiency of the expansion valve clamp are effectively improved.
Description
Technical field
The utility model relates to a kind of fixture, relates in particular to a kind of expansion valve special fixture.
Background technology
A kind of expansion valve 10, as shown in Figure 1, need the hole shown in 101,102,103,104 in manuscript, due to expansion valve 10 non-revolved body, and wants the hole shown in 101,102,103,104 in turning manuscript 1, just must need to use special-purpose frock clamp.
A kind of fixture 20 used at present, as shown in Figure 2, it is provided with the conical surface that the conical surface with machine tool chief axis 30 adapts, in process, the blank of expansion valve 10 is positioned at clamping zone 201, and fixture 20 moves to the inside of machine tool chief axis, now due to the interaction of the conical surface, the grip block of clamping zone both sides Shang Xia 201 will inwardly apply clamping force, thereby the blank of expansion valve 10 is clamped.
When the defect of this fixture applies clamping force in being in the grip block of clamping zone both sides Shang Xia 201, it not remains parallel, so blank discontinuity of expansion valve 10, its side near machine tool chief axis is stressed little, and opposite side is stressed large, so can cause the slight deformation of blank, thereby affect machining accuracy; In addition, in a collection of blank, its thickness is not just the same, and in the process that clamps blank, fixture 20 is different to the inner mobile distance of machine tool chief axis, so can cause the product processed with a collection of blank so, and the error of its size and precision is larger.
Summary of the invention
The technical problems to be solved in the utility model is to provide in a kind of turning manuscript 1 special fixture in the hole shown in 101,102,103,104 on expansion valve 10.
In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is as follows: a kind of expansion valve fixture, comprise clamp body, location-plate and positioning collet, radially be provided with the piece-holder zone adapted with expansion valve on described clamp body, end corresponding to described piece-holder zone also is provided with the machining hole of processing expansion valve; The other end of described positioning collet and clamp body is slidably connected, and makes described positioning collet to move axially with respect to clamp body; Described piece-holder also is provided with the location-plate be fixedly connected with the end of positioning collet in zone.The benefit of this structure be by clamp body and positioning collet interact, by the location of location-plate, blank to be processed is fixed in the piece-holder zone, so blank is stressed evenly, machining accuracy is high, also less with a collection of blank mismachining tolerance.
Further, the end that described clamp body is relative with machining hole is provided with the shoulder hole communicated with the piece-holder zone; Described positioning collet is stairstepping, and an end of described positioning collet minor diameter embeds in the large diameter hole of described shoulder hole and cooperatively interacts.The benefit of this connected mode is that clamp body is higher with respect to the mobile accuracy of positioning collet.
Further, an end of described location-plate is provided with riser, and described riser is provided with dog screw.The purpose that designs structure like this is to locate blank along diametric position.
Further, described expansion valve fixture also comprises clamp pull rod, and an end of described clamp pull rod is provided with pull bar, and described pull bar is fixedly connected with clamp body, with positioning collet, is slidably connected.The benefit of this connected mode is more to be convenient to apply the power that makes clamp body move with respect to positioning collet.
Further, the part that described positioning collet embeds shoulder hole also is provided with along diametric through hole, and its other end is provided with for matching to merge with pull bar and extends axially the circular hole to through hole; At shoulder hole one end, the position near end is provided with along diametric pin-and-hole described clamp body; Described pull bar is provided with along diametric hole near the position of end, and described clamp pull rod is connected with positioning collet, clamp body respectively through pin-and-hole, through hole, hole successively by pin.This simple in structure, positioning precision is high, can be fixed in more easily machine tool chief axis.
Further, the diameter of described through hole is larger than the diameter of pin.This structure makes clamp pull rod and clamp body can relatively move with respect to positioning collet.
Further, be provided with spring between the end face of described positioning collet insertion shoulder hole one end and clamp body.When the effect that spring is set is that machine tool chief axis unclamps clamp pull rod, provide the screen resilience that unclamps blank.
Further, inside corner place, described piece-holder zone is provided with gap.Because blank has corner angle, the purpose that structure like this is set is to prevent that blank and clamp body from damaging mutually in edges and corners, avoids descending because edges and corners coordinate the machining accuracy closely do not produced simultaneously.
Further, also be provided with along diametric(al) the groove adapted with location-plate on described clamp body.So structure makes the fixing more firm of blank, locates more accurate.
Further, also be provided with counter sink on described location-plate, it is fixedly connected with positioning collet by screw.This connection relatively flexibly, reliably, is convenient for changing location-plate.
Expansion valve fixture of the present utility model, its positioning precision is high, and clamping is reliable, and the blank be held is stressed evenly, effectively raises its machining accuracy and working (machining) efficiency.
The accompanying drawing explanation
The structural representation that Fig. 1 is expansion valve;
The structural representation that Fig. 2 is fixture in prior art;
The structural representation that Fig. 3 is the utility model embodiment;
Fig. 4 is cutaway view embodiment illustrated in fig. 3;
The structural representation that Fig. 5 is clamp body in Fig. 3;
The structural representation that Fig. 6 is positioning collet in Fig. 3;
The structural representation that Fig. 7 is location-plate in Fig. 3.
Description of reference numerals: 1-clamp body; 11-piece-holder zone; The 12-gap; The 13-shoulder hole; The 14-pin-and-hole; The 15-groove; The 16-machining hole; The 2-location-plate; The 21-riser; The 22-dog screw; The 23-counter sink; The 3-pin; The 4-positioning collet; The 41-circular hole; The 42-through hole; The 5-clamp pull rod; The 51-pull bar; The 52-hole; The 6-spring; The 10-expansion valve; The 20-fixture; The 201-clamping zone.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment, the present embodiment is described in further detail.
Embodiment
For the hole shown in 101,102,103,104 in manuscript 1, the expansion valve fixture of the present embodiment, as shown in Fig. 3, Fig. 4, Fig. 5, comprises clamp body 1, location-plate 2 and positioning collet 4.Wherein on clamp body 1, radially be provided with the piece-holder zone 11 adapted with expansion valve 10, the end of described piece-holder zone 11 correspondences also is provided with the machining hole 16 of processing expansion valve; Described positioning collet 4 is slidably connected with the other end of clamp body 1, makes described positioning collet 4 to move axially with respect to clamp body 1; Also be provided with the location-plate 2 be fixedly connected with the end of positioning collet 4 in described piece-holder zone 11.
Wherein clamp body 1 is as follows with the connected mode of positioning collet 4: the end that described clamp body 1 is relative with machining hole 16 is provided with the shoulder hole 13 communicated with piece-holder zone 11; Described positioning collet 4 is stairstepping, and an end of described positioning collet minor diameter embeds in the large diameter hole of described shoulder hole 13 and cooperatively interacts.
Location-plate 2 in the present embodiment, as shown in Figure 7, an end of described location-plate 2 is provided with riser 21, and described riser 21 is provided with dog screw 22.
The expansion valve fixture of the present embodiment also comprises the clamp pull rod 5 also comprised as shown in Figure 8, and an end of described clamp pull rod 5 is provided with pull bar 51, and described pull bar 51 is fixedly connected with clamp body 1, with positioning collet 4, is slidably connected.As shown in Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 8, the part that wherein positioning collet 4 embeds shoulder hole 13 also is provided with along diametric through hole 42, and its other end is provided with for matching to merge with pull bar 51 and extends axially the circular hole 41 to through hole 42; At shoulder hole 13 1 ends, the position near end is provided with along diametric pin-and-hole 14 described clamp body 1; Described pull bar 51 is provided with along diametric hole 52 near the position of end, and described clamp pull rod 5 is connected with positioning collet 4, clamp body 1 respectively through pin-and-hole 14, through hole 42, hole 52 successively by pin 3.Wherein the diameter of through hole 42 is larger than the diameter of pin 3.
As shown in Figure 4, in the present embodiment, between the end face of positioning collet 4 insertion shoulder hole 13 1 ends and clamp body 1, also be provided with spring 6.
Because blank has corner angle, its piece-holder at clamp body 1 zone 11 is interior fixedly the time, with clamp body damage mutually in edges and corners, closely can not produce machining accuracy and descends because edges and corners coordinate simultaneously, therefore as shown in Figure 5, be provided with gap 12 at 11 inside corner places, piece-holder zone.
In order to make location-plate 2 location more accurately reliable, as shown in Figure 5, also be provided with along diametric(al) the groove 15 adapted with location-plate 2 on described clamp body 1, as shown in Figure 7, also be provided with counter sink 23 on location-plate 2, it is fixedly connected with positioning collet 4 by screw.
The expansion valve fixture of the present embodiment, its by location-plate 2, dog screw 22 will blank to be processed in the regional 11 interior location of piece-holder, then apply axial pulling force by machine tool chief axis to clamp pull rod 5, make blank fixing under the interaction force of clamp body 1 and positioning collet 4, so by the fixing blank of axial interaction force, it is stressed evenly, and machining accuracy and working (machining) efficiency all are improved.
In a word, the foregoing is only preferred embodiment of the present utility model, all equalizations of doing according to the utility model claim change and modify, and all should belong to the covering scope of the utility model patent.
Claims (10)
1. an expansion valve fixture, comprise clamp body (1), location-plate (2) and positioning collet (4), it is characterized in that: radially be provided with the piece-holder zone (11) adapted with expansion valve (10) on described clamp body (1), end corresponding to described piece-holder zone (11) also is provided with the machining hole (16) of processing expansion valve;
Described positioning collet (4) is slidably connected with the other end of clamp body (1), makes described positioning collet (4) to move axially with respect to clamp body (1);
Also be provided with the location-plate (2) be fixedly connected with the end of positioning collet (4) in described piece-holder zone (11).
2. according to expansion valve fixture claimed in claim 1, it is characterized in that: the end that described clamp body (1) is relative with machining hole (16) is provided with the shoulder hole (13) communicated with piece-holder zone (11); Described positioning collet (4) is stairstepping, and an end of described positioning collet minor diameter embeds in the large diameter hole of described shoulder hole (13) and cooperatively interacts.
3. according to expansion valve fixture claimed in claim 1, it is characterized in that: an end of described location-plate (2) is provided with riser (21), and described riser (21) is provided with dog screw (22).
4. according to expansion valve fixture claimed in claim 1, it is characterized in that: also comprise clamp pull rod (5), one end of described clamp pull rod (5) is provided with pull bar (51), and described pull bar (51) is fixedly connected with clamp body (1), with positioning collet (4), is slidably connected.
5. according to claim 1 or 2 or 4 described expansion valve fixtures, it is characterized in that: the part that described positioning collet (4) embeds shoulder hole (13) also is provided with along diametric through hole (42), and its other end is provided with for matching to merge with pull bar (51) and extends axially the circular hole (41) to through hole (42);
At shoulder hole (13) one ends, the position near end is provided with along diametric pin-and-hole (14) described clamp body (1);
Described pull bar (51) is provided with along diametric hole (52) near the position of end, and described clamp pull rod (5) is connected with positioning collet (4), clamp body (1) respectively through pin-and-hole (14), through hole (42), hole (52) successively by pin (3).
6. according to expansion valve fixture claimed in claim 5, it is characterized in that: the diameter of described through hole (42) is larger than the diameter of pin (3).
7. according to the described expansion valve fixture of claim 1 or 2, it is characterized in that: between the end face of described positioning collet (4) insertion shoulder hole (13) one ends and clamp body (1), be provided with spring (6).
8. according to expansion valve fixture claimed in claim 1, it is characterized in that: (11) inside corner place, described piece-holder zone is provided with gap (12).
9. according to expansion valve fixture claimed in claim 1, it is characterized in that: described clamp body (1) is upper also is provided with along diametric(al) the groove (15) adapted with location-plate (2).
10. according to the described expansion valve fixture of claim 1 or 3, it is characterized in that: also be provided with counter sink (23) on described location-plate (2), it is fixedly connected with positioning collet (4) by screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320437934 CN203356603U (en) | 2013-07-23 | 2013-07-23 | Expansion valve clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320437934 CN203356603U (en) | 2013-07-23 | 2013-07-23 | Expansion valve clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203356603U true CN203356603U (en) | 2013-12-25 |
Family
ID=49804425
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320437934 Expired - Fee Related CN203356603U (en) | 2013-07-23 | 2013-07-23 | Expansion valve clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203356603U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689737A (en) * | 2016-03-21 | 2016-06-22 | 浙江亚恩材料工程技术有限公司 | Machining lathe for ball body of ball valve |
-
2013
- 2013-07-23 CN CN 201320437934 patent/CN203356603U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689737A (en) * | 2016-03-21 | 2016-06-22 | 浙江亚恩材料工程技术有限公司 | Machining lathe for ball body of ball valve |
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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: 20131225 Termination date: 20160723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |