CN212144546U - Three-jaw chuck for high-pressure common rail pump body - Google Patents
Three-jaw chuck for high-pressure common rail pump body Download PDFInfo
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- CN212144546U CN212144546U CN202020776737.3U CN202020776737U CN212144546U CN 212144546 U CN212144546 U CN 212144546U CN 202020776737 U CN202020776737 U CN 202020776737U CN 212144546 U CN212144546 U CN 212144546U
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Abstract
A three-jaw chuck for a high-pressure common rail pump body belongs to the technical field of high-pressure pump body processing. The method is characterized in that: including chuck main part (1) and installation pole (4), movable jack catch (2) one-to-one of installation pole (4) and chuck main part (1), the axis direction setting that is on a parallel with chuck main part (1) is followed in installation pole (4), every installation pole (4) all are provided with the location portion towards chuck main part (1) middle part, the inner of every movable jack catch (2) all sets up constant head tank (6), constant head tank (6) are the opening towards "V" shape at chuck main part (1) middle part. This high pressure is rail pump body for common rail's a plurality of constant head tanks cooperate and fix a position the one end of work piece, and a plurality of location portions fix a position the other end of work piece to realized the accurate positioning of work piece, the constant head tank cooperatees and to make the work piece rotate along with the chuck main part is synchronous, and then realized the lathe work to the work piece, the work piece clamping is quick, and the work piece machining accuracy is high.
Description
Technical Field
A three-jaw chuck for a high-pressure common rail pump body belongs to the technical field of high-pressure pump body processing.
Background
The high pressure common rail pump body needs to be turned at two ends of the high pressure pump body in the machining process so as to ensure the flatness of the two ends of the high pressure pump body, the high pressure pump body can be better connected with the end covers at the two ends, and the sealing reliability between the high pressure pump body and the end covers can be ensured. When the high-pressure pump body is machined through a lathe, the problem of low clamping efficiency exists due to the fact that the high-pressure pump body is directly clamped through the three-jaw chuck, the positioning precision of the high-pressure pump body in the clamping process is poor, the flatness of the two ends of the high-pressure pump body is difficult to guarantee, and the qualified rate of the high-pressure pump body after machining is low.
Disclosure of Invention
The to-be-solved technical problem of the utility model is: the three-jaw chuck for the high-pressure common rail pump body overcomes the defects in the prior art, and can position and clamp a workpiece.
The utility model provides a technical scheme that its technical problem adopted is: this high pressure is three-jaw chuck for rail pump body altogether, its characterized in that: including chuck main part and installation pole, the movable jack catch one-to-one of installation pole and chuck main part, the installation pole sets up along the axis direction that is on a parallel with chuck main part, and every installation pole all is provided with the location portion towards chuck main part middle part, and the inner of every movable jack catch all sets up the constant head tank, and the constant head tank is the opening "V" shape towards chuck main part middle part.
Preferably, each mounting rod is provided with a positioning pin towards one side of the middle part of the chuck main body in a detachable mode, and the positioning pins are arranged along the radial direction of the chuck main body.
Preferably, the positioning pins are connected with the corresponding mounting rods in a sliding mode, and positioning pin pre-tightening springs are arranged between the positioning pins and the corresponding mounting rods.
Preferably, a fastening nut for fixing the locating pin is arranged on the locating pin.
Preferably, a plurality of mounting holes are formed in each movable jaw at intervals along the radial direction of the chuck body, and one end of each mounting rod is detachably mounted in each mounting hole.
Preferably, every the equal slidable mounting in inner of activity jack catch have the slider, the slider sets up along the radial slip of chuck main part, the constant head tank setting is provided with slider pretension spring in the one end in slider towards chuck main part middle part between slider and the activity jack catch that corresponds.
Preferably, the slide block is provided with a guide rod, the guide rod is arranged along the radial direction of the chuck main body, and each movable jaw is provided with a guide hole matched with the guide rod.
Compared with the prior art, the utility model discloses the beneficial effect who has is:
1. this common rail pump body is with constant voltage rail all is provided with the constant head tank of "V" shape on every movable jack catch of three-jaw chuck, all is provided with location portion on every installation pole, and a plurality of constant head tanks cooperate and fix a position the one end of work piece, and a plurality of location portions fix a position the other end of work piece to realized the accurate positioning of work piece, the constant head tank cooperatees and to make the work piece rotate along with the chuck main part is synchronous, and then realized the lathe work to the work piece, the work piece clamping is quick, and the work piece machining accuracy is high.
2. All detachable installs the locating pin on every installation pole to the convenience is adjusted the locating pin, in order to adapt to the processing of the work piece of different models.
3. The positioning pin pre-tightening spring can ensure reliable clamping of the workpiece and is convenient for taking and placing the workpiece.
4. And a fastening nut is arranged on the positioning pin, so that the positioning pin can be adjusted under positioning, not only can be suitable for workpieces of different models, but also can ensure that the workpieces are reliably positioned.
5. The mounting rod is detachably mounted in the mounting hole, and the position of the mounting rod can be adjusted according to the size of a workpiece so as to adapt to the processing of workpieces of different models.
6. The constant head tank sets up on the slider, and the slider is connected with slider pretension spring, can promote the slider and press from both sides tightly the work piece, can enough guarantee that the work piece presss from both sides tightly reliably, has made things convenient for getting of work piece again and has put.
7. The guide rod is matched with the guide hole to guide the sliding block, so that the sliding block is guaranteed to linearly slide along the radial direction of the chuck main body, and the workpiece is further guaranteed to be accurately positioned.
Drawings
Fig. 1 is a schematic perspective view of a three-jaw chuck for a high-pressure common rail pump body.
Fig. 2 is a partially enlarged view of a portion a in fig. 1.
Fig. 3 is a schematic front view of the connection between the movable jaw and the positioning rod in embodiment 2.
Fig. 4 is a left side view schematically showing the connection of the movable claws and the slider in embodiment 2.
In the figure: 1. the clamping chuck comprises a chuck body 2, a movable clamping jaw 201, a sliding groove 3, a mounting hole 4, a mounting rod 401, a positioning hole 5, a positioning pin 501, a retainer ring 6, a positioning groove 7, a positioning plane 8, a guiding hole 9, a guiding rod 10, a sliding block pre-tightening spring 11, a positioning pin pre-tightening spring 12, a sliding block 1201, a sliding rail 13 and a fastening nut.
Detailed Description
Fig. 1 to 4 are preferred embodiments of the present invention, and the present invention will be further explained with reference to fig. 1 to 4.
The utility model provides a high pressure is three-jaw chuck for rail pump body altogether, includes chuck main part 1 and installation pole 4, installs pole 4 and chuck main part 1's movable jack catch 2 one-to-one, and installation pole 4 sets up along the axis direction that is on a parallel with chuck main part 1, and every installation pole 4 all is provided with the location portion towards chuck main part 1 middle part, and every movable jack catch 2's the inner all sets up constant head tank 6, and constant head tank 6 is the opening towards "V" shape at chuck main part 1 middle part. This common rail pump body is with constant voltage rail all is provided with the constant head tank 6 of "V" shape on every activity jack catch 2 of three-jaw chuck, all be provided with location portion on every installation pole 4, a plurality of constant head tanks 6 cooperate and fix a position the one end of work piece, a plurality of location portions fix a position the other end of work piece, thereby realized the accurate positioning of work piece, constant head tank 6 cooperatees and to make the work piece rotate along with chuck main part 1 synchronization, and then realized the lathe work to the work piece, the work piece clamping is quick, and the work piece machining accuracy is high.
The present invention is further described with reference to specific embodiments, however, it will be understood by those skilled in the art that the detailed description given herein with respect to the drawings is for better explanation and that the present invention is necessarily to be construed as limited to those embodiments, and equivalents or common means thereof will not be described in detail but will fall within the scope of the present application.
Example 1
As shown in FIGS. 1-2: the chuck body 1 is provided with three movable clamping jaws 2 along the radial direction, each movable clamping jaw 2 is provided with a plurality of mounting holes 3, and the mounting holes 3 on each movable clamping jaw 2 are arranged along the radial direction of the chuck body 1 at intervals. One end of the mounting rod 4 is detachably mounted in the mounting hole 3 of the corresponding movable clamping jaw 2, the other end is a free end, and the positioning part is arranged on the inner side of the free end of the mounting rod 4. In this embodiment, the workpiece is a high-pressure pump body, and three convex bosses connected with the end cover are arranged at two ends of the high-pressure pump body.
The inner of every activity jack catch 2 is provided with constant head tank 6, and constant head tank 6 is just for opening "V" shape towards chuck body 1 middle part to can fix a position the boss of work piece tip and press from both sides tightly. The constant head tank 6 sets up the one side of keeping away from chuck body 1 at activity jack catch 2 to one side that is close to chuck body 1 at activity jack catch 2 inner forms and is used for carrying out the location plane 7 of fixing a position to the work piece terminal surface, and location plane 7 and constant head tank 6 cooperate, fix a position the one side that is close to chuck body 1 to the work piece, can also make the work piece along with chuck body 1 synchronous rotation.
Locating pin 5 is all installed to the free end of every installation pole 4, and locating pin 5 is connected with the 4 detachable of installation poles that correspond along chuck main part 1's radial setting, locating pin 5, forms location portion, and three locating pin 5 can be fixed a position the one end that chuck main part 1 was kept away from to the work piece, guarantees that the work piece location is accurate.
This common rail pump body of high pressure is with three claw chuck when using, directly with the work piece place between three installation pole 4 can, make the work piece be close to the one end of chuck main part 1 and laminate with locating plane 7, make the three boss of the one end that the work piece is close to chuck main part 1 fix a position respectively in three constant head tank 6 simultaneously, the three boss of the one end that the work piece was kept away from chuck main part 1 is fixed a position through three locating pin 5 respectively, the work piece location is accurate, and the work piece is got and is put fastly, the clamping speed of work piece has both been improved, and the machining precision has been improved again, the qualification rate of work piece.
Example 2
As shown in FIGS. 3-4: example 2 differs from example 1 in that: the free end of only one mounting rod 4 is provided with a positioning hole 401, the positioning hole 401 is a through hole arranged along the radial direction of the chuck body 1, the positioning pin 5 is a screw rod, the middle part of the positioning pin 5 is arranged in the positioning hole 401 in a sliding mode, and two ends of the positioning pin 5 extend out of the corresponding positioning holes 401. One end of the positioning pin 5 close to the chuck body 1 is provided with a retaining ring 501, a positioning pin pre-tightening spring 11 is sleeved outside the positioning pin 5 between the retaining ring 501 and the corresponding mounting rod 4, one end of the positioning pin pre-tightening spring 11 is supported on the corresponding mounting rod 4, and the other end of the positioning pin pre-tightening spring is supported on the retaining ring 501, so that clamping of a workpiece can be realized, and the workpiece taking and placing are also facilitated. The connection structure of the remaining mounting rod 4 and the positioning pin 5 is the same as that of embodiment 1.
The one end that locating pin 5 kept away from the chuck main part 1 middle part is provided with fastening nut 13, and fastening nut 13 can be locked by locating pin 5, can adjust the position of locating pin 5 to the processing of the work piece of adaptation different sizes.
The diameter that the locating hole 401 is close to the one end in chuck main part 1 middle part is greater than the other end diameter, and the one end that locating pin pretension spring 11 is close to installation pole 4 stretches into in the one end that locating hole 401 is close to chuck main part 1 middle part to can guarantee locating pin pretension spring 11 stable in position.
One side of the inner end of only one movable jaw 2, which is far away from the chuck body 1, is provided with an opening, and the structures of the other movable jaws 2 are the same as those of the movable jaws 2 in the embodiment 1. Sliding mounting has slider 12 in the opening, and the opening is on a parallel with one side of chuck main part 1 for locating plane 7, locating plane 7's middle part is provided with along chuck main part 1's radial spout 201, one side that slider 12 is close to chuck main part 1 is provided with slide rail 1201 with spout 201 matched with, thereby lead to slider 12, guarantee slider 12 along chuck main part 1's radial slip, the one end that spout 201 is close to chuck main part 1 middle part is provided with and is used for the locating piece (not drawn in the figure) to slider 12 location, thereby prevent that slider 12 and chuck main part 1 from breaking away from. The positioning groove 6 is provided on the side of the slider 12 toward the center of the chuck body 1.
One side that chuck main part 1 middle part was kept away from to slider 12 is provided with guide bar 9, guide bar 9 radially sets up along chuck main part 1, be provided with on the activity jack catch 2 along the radial guiding hole 8 that sets up of chuck main part 1, 9 one end of guide bar links to each other with slider 12, the other end slides and stretches into in the guiding hole 8, and with 8 sliding connection in guiding hole, 9 overcoat of guide bar is equipped with slider pretension spring 10, slider pretension spring 10 one end is supported on activity jack catch 2, the other end is supported on slider 12, thereby can enough adapt to the location of not unidimensional work piece, guarantee that the work piece location is accurate, the getting of work piece is made things convenient for again and.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention. However, any simple modification, equivalent change and modification made to the above embodiments according to the technical substance of the present invention still belong to the protection scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a high pressure is three-jaw chuck for rail pump body altogether which characterized in that: including chuck main part (1) and installation pole (4), movable jack catch (2) one-to-one of installation pole (4) and chuck main part (1), the axis direction setting that is on a parallel with chuck main part (1) is followed in installation pole (4), every installation pole (4) all are provided with the location portion towards chuck main part (1) middle part, the inner of every movable jack catch (2) all sets up constant head tank (6), constant head tank (6) are the opening towards "V" shape at chuck main part (1) middle part.
2. The three-jaw chuck for a high-pressure common rail pump body according to claim 1, wherein: every installation pole (4) towards the equal detachable installation of one side in chuck main part (1) middle part and install locating pin (5), radial setting along chuck main part (1) is followed in locating pin (5).
3. The three-jaw chuck for a high-pressure common rail pump body according to claim 2, wherein: the positioning pins (5) are connected with the corresponding mounting rods (4) in a sliding mode, and positioning pin pre-tightening springs (11) are arranged between the positioning pins (5) and the corresponding mounting rods (4).
4. The three-jaw chuck for a high-pressure common rail pump body according to claim 2 or 3, wherein: and a fastening nut (13) for fixing the positioning pin (5) is arranged on the positioning pin.
5. The three-jaw chuck for a high-pressure common rail pump body according to claim 1, wherein: each movable clamping jaw (2) is provided with a plurality of mounting holes (3) at intervals along the radial direction of the chuck body (1), and one end of each mounting rod (4) is detachably mounted in each mounting hole (3).
6. The three-jaw chuck for a high-pressure common rail pump body according to claim 1, wherein: every the inner equal slidable mounting of activity jack catch (2) have slider (12), slider (12) set up along the radial slip of chuck main part (1), constant head tank (6) set up in slider (12) towards the one end in chuck main part (1) middle part, be provided with slider pretension spring (10) between slider (12) and the activity jack catch (2) that correspond.
7. The three-jaw chuck for a high-pressure common rail pump body according to claim 6, wherein: the chuck is characterized in that a guide rod (9) is arranged on the sliding block (12), the guide rod (9) is arranged along the radial direction of the chuck body (1), and a guide hole (8) matched with the guide rod (9) is formed in each movable clamping jaw (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020776737.3U CN212144546U (en) | 2020-05-12 | 2020-05-12 | Three-jaw chuck for high-pressure common rail pump body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020776737.3U CN212144546U (en) | 2020-05-12 | 2020-05-12 | Three-jaw chuck for high-pressure common rail pump body |
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| Publication Number | Publication Date |
|---|---|
| CN212144546U true CN212144546U (en) | 2020-12-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020776737.3U Active CN212144546U (en) | 2020-05-12 | 2020-05-12 | Three-jaw chuck for high-pressure common rail pump body |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116175236A (en) * | 2023-04-28 | 2023-05-30 | 山西电机制造有限公司 | Drilling positioning tool and machining method for end cover and flange |
-
2020
- 2020-05-12 CN CN202020776737.3U patent/CN212144546U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116175236A (en) * | 2023-04-28 | 2023-05-30 | 山西电机制造有限公司 | Drilling positioning tool and machining method for end cover and flange |
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