CN214444751U - Common rail pump body machining center equipment universal fixturing of high pressure - Google Patents
Common rail pump body machining center equipment universal fixturing of high pressure Download PDFInfo
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- CN214444751U CN214444751U CN202120377817.6U CN202120377817U CN214444751U CN 214444751 U CN214444751 U CN 214444751U CN 202120377817 U CN202120377817 U CN 202120377817U CN 214444751 U CN214444751 U CN 214444751U
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Abstract
The utility model relates to a high-pressure common rail pump body machining center equipment universal fixture, which comprises a lower mounting plate, wherein the upper surface of the lower mounting plate is provided with a positioning plate and an upper pressing plate which is used for clamping a workpiece to be machined together with the positioning plate; the positioning plate is provided with at least two positioning pin holes and a positioning round pin mounting hole, a detachable positioning diamond pin is arranged in each positioning pin hole, a detachable driving side positioning pin is arranged in each positioning round pin mounting hole, and the circumferential profile of each driving side positioning pin is matched with the inner profile of each positioning hole of a workpiece to be machined. The utility model discloses a high pressure common rail pump body machining center equipment universal fixturing possesses good clamp and adorns the commonality, reduces the anchor clamps cost, reduces operating personnel latency in the course of working for the operating efficiency ensures the whole precision of pump body processing simultaneously, improves the yields.
Description
Technical Field
The utility model belongs to the metalwork processing field especially relates to a common rail pump body machining center equipment universal fixturing is altogether pressed to high pressure.
Background
The diesel high-pressure common rail injection technology is the most advanced engine technology in the world at present, and the characteristics of low oil consumption and low exhaust emission are of great significance for improving the air environment at present.
For pump body processing, all need adopt corresponding anchor clamps to fix a position to the pump body of different specifications size, switch 1 time and need 30 minutes, if so switch frequently high, clamp, dismantlement anchor clamps relapse, need measure anchor clamps installation accuracy again after the installation, if measurement when installing the anchor clamps has the error, also causes the error to the size of work piece in processing easily, and the part defective rate that the processing was come out promotes. In addition, when a large-sized part is switched to a small-sized part for machining, the fixture is usually assembled and disassembled by the group leader to measure the positioning accuracy of the fixture, and during the period, a machining operator waits for the group leader to replace the fixture, so that if the fixture is switched every day, the waiting time is wasted every day, and the labor cost of a company is wasted to a certain extent. In addition, the clamp is used as a consumable, and needs to be replaced when the service life of the clamp reaches the limit, and if one set of clamp is adopted corresponding to different pump bodies, the purchase cost of the clamp is inevitably increased.
Therefore, the universal clamp is designed in consideration, the universal clamp can be used for clamping workpieces of different specifications without adjustment or slight adjustment during grade number switching, the production preparation period can be shortened by adopting the clamp, and the variety of the clamp is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an overcome among the prior art anchor clamps specification complicated, the higher defect of production and cost of labor provides a common rail pump body machining center equipment universal fixturing is altogether pressed to high pressure.
The utility model discloses a following technical scheme solves above-mentioned technical problem:
a universal fixture for high-pressure common rail pump body machining center equipment is characterized by comprising a lower mounting plate, wherein a positioning plate and an upper pressing plate are arranged on the upper surface of the lower mounting plate, and the upper pressing plate and the positioning plate are used for clamping a workpiece to be machined; the positioning plate is provided with at least two positioning pin holes and a positioning round pin mounting hole, a detachable positioning diamond pin is arranged in each positioning pin hole, a detachable driving side positioning pin is arranged in each positioning round pin mounting hole, and the circumferential profile of each driving side positioning pin is matched with the inner profile of each positioning hole of a workpiece to be machined.
Preferably, the number of the positioning pin holes is six, the positioning pin holes are uniformly distributed on one side of the positioning plate, and the positioning round pin mounting holes are formed in the other side of the positioning plate.
Preferably, the connecting part between the driving side positioning pin and the positioning round pin mounting hole is of a diamond pin structure, and the driving side positioning pin is made of T10A steel.
Preferably, the diameter of the positioning pin hole is 6 mm.
Preferably, the center distance of the positioning pin holes is 139mm at most and 114.5mm at most.
Preferably, the diameter of the outer peripheral surface of the drive side positioning pin is 81mm or 70.6 mm.
The utility model has the advantages that: the utility model discloses a high pressure common rail pump body machining center equipment universal fixturing possesses good clamp and adorns the commonality, reduces the anchor clamps cost, reduces operating personnel latency in the course of working for the operating efficiency ensures the whole precision of pump body processing simultaneously, improves the yields.
Drawings
Fig. 1 is a schematic structural view of a common rail machining center for high pressure common rail pump according to a preferred embodiment of the present invention.
Fig. 2 is a schematic structural view of the positioning plate in fig. 1.
Detailed Description
The present invention will be more clearly and completely described with reference to the following preferred embodiments and the accompanying drawings.
As shown in fig. 1 and 2, the universal fixture for high-pressure common rail pump body machining center equipment in the present embodiment includes a lower mounting plate 1 connected to a machining center table, a positioning plate 2 disposed on an upper surface of the lower mounting plate 1, and an upper pressing plate 3 for clamping a workpiece to be machined together with the positioning plate 2. Six positioning pin holes 21 and a positioning round pin mounting hole 22 are formed in the positioning plate 2, a detachable positioning diamond pin 4 is arranged in each positioning pin hole 21, a detachable driving side positioning pin 5 is arranged in each positioning round pin mounting hole 22, and the circumferential contour of each driving side positioning pin 5 is matched with the inner contour of a positioning hole of a pump body to be added.
Six positioning pin holes 21 are formed, and the diameter of each positioning pin hole is 6 mm. The positioning holes corresponding to the large and small pump bodies to be machined are arranged in a coordinated manner, so that the positioning holes are uniformly distributed on one side of the positioning plate 2, and the positioning round pin mounting holes 22 are formed in the other side of the positioning plate. The center distance of the positioning pin holes is 139mm at most and 114.5mm at most, wherein the tolerance range of the center distance is +/-0.3 mm. The positioning diamond pin 4 can effectively limit the degree of freedom of the positioning diamond pin, effective positioning is guaranteed on the detachable premise, and the application range of the clamp is expanded compared with the existing non-detachable pin structure.
Further, the connecting portion between the drive side positioning pin 5 and the positioning round pin mounting hole 22 also adopts a diamond pin structure. The drive side locating pin is made of T10A steel, and is subjected to heat treatment HRC4-50, so that the service life and the good dimensional stability of the drive side locating pin are ensured. In order to match the pump bodies with different specifications, the driving side positioning pin in the embodiment comprises two specifications, the diameter of the outer peripheral surface of one driving side positioning pin is 81mm, the diameter of the outer peripheral surface of the other driving side positioning pin is 70.6mm, when the pump bodies with different specifications are required to be clamped, the driving side positioning pin with the corresponding diameter is replaced, and the positioning plate does not need to be disassembled and the progress is adjusted.
Although particular embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are examples only and that the scope of the present invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and the principles of the present invention, and these changes and modifications are all within the scope of the present invention.
Claims (6)
1. A universal fixture for high-pressure common rail pump body machining center equipment is characterized by comprising a lower mounting plate, wherein a positioning plate and an upper pressing plate are arranged on the upper surface of the lower mounting plate, and the upper pressing plate and the positioning plate are used for clamping a workpiece to be machined; the positioning plate is provided with at least two positioning pin holes and a positioning round pin mounting hole, a detachable positioning diamond pin is arranged in each positioning pin hole, a detachable driving side positioning pin is arranged in each positioning round pin mounting hole, and the circumferential profile of each driving side positioning pin is matched with the inner profile of each positioning hole of a workpiece to be machined.
2. The universal fixture for high-pressure common rail pump body machining center equipment according to claim 1, wherein the number of the positioning pin holes is six, the positioning pin holes are uniformly distributed on one side of the positioning plate, and the positioning round pin mounting holes are formed in the other side of the positioning plate.
3. The common rail pump body machining center equipment common clamp of claim 2, wherein a connecting portion between the drive side positioning pin and the positioning round pin mounting hole is of a diamond pin structure, and the drive side positioning pin is made of T10A steel.
4. The common rail pump machining center equipment common clamp of claim 3, wherein the diameter of the positioning pin hole is 6 mm.
5. The high pressure common rail pump body machining center equipment universal fixture of claim 4, wherein the center-to-center distance of the positioning pin holes is 139mm at most and 114.5mm at most.
6. The common rail pump body machining center equipment common clamp of claim 5, wherein the diameter of the outer peripheral surface of the drive side positioning pin is 81mm or 70.6 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120377817.6U CN214444751U (en) | 2021-02-18 | 2021-02-18 | Common rail pump body machining center equipment universal fixturing of high pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120377817.6U CN214444751U (en) | 2021-02-18 | 2021-02-18 | Common rail pump body machining center equipment universal fixturing of high pressure |
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| Publication Number | Publication Date |
|---|---|
| CN214444751U true CN214444751U (en) | 2021-10-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202120377817.6U Active CN214444751U (en) | 2021-02-18 | 2021-02-18 | Common rail pump body machining center equipment universal fixturing of high pressure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029760A (en) * | 2021-11-15 | 2022-02-11 | 上海电装燃油喷射有限公司 | Universal clamp for processing high-pressure common rail pump body |
-
2021
- 2021-02-18 CN CN202120377817.6U patent/CN214444751U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114029760A (en) * | 2021-11-15 | 2022-02-11 | 上海电装燃油喷射有限公司 | Universal clamp for processing high-pressure common rail pump body |
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