CN114029760A - Universal clamp for processing high-pressure common rail pump body - Google Patents
Universal clamp for processing high-pressure common rail pump body Download PDFInfo
- Publication number
- CN114029760A CN114029760A CN202111347417.1A CN202111347417A CN114029760A CN 114029760 A CN114029760 A CN 114029760A CN 202111347417 A CN202111347417 A CN 202111347417A CN 114029760 A CN114029760 A CN 114029760A
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- China
- Prior art keywords
- common rail
- positioning pin
- pump body
- pressure common
- positioning
- Prior art date
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- 229910003460 diamond Inorganic materials 0.000 claims abstract description 19
- 239000010432 diamond Substances 0.000 claims abstract description 19
- 238000003754 machining Methods 0.000 claims abstract description 16
- 238000003825 pressing Methods 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 102220060547 rs786203080 Human genes 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
- B23Q3/02—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine for mounting on a work-table, tool-slide, or analogous part
- B23Q3/06—Work-clamping means
- B23Q3/062—Work-clamping means adapted for holding workpieces having a special form or being made from a special material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jigs For Machine Tools (AREA)
- Machine Tool Units (AREA)
Abstract
The invention discloses a universal fixture for processing a high-pressure common rail pump body, which comprises: mounting panel, locating plate, location diamond round pin, drive side locating pin and top board. The mounting plate is used for connecting a workbench of a machining center, the positioning plate is fixed on the upper surface of the mounting plate, and the upper surface of the positioning plate is provided with a driving side positioning pin hole and a plurality of groups of positioning pin holes. The positioning diamond pin is detachably connected with the positioning pin hole, and the top of the positioning diamond pin is matched with a groove on the high-pressure common rail pump body to be processed. The driving side positioning pin is detachably connected with the driving side positioning pin hole, and a round cap at the top of the driving side positioning pin is matched with a round hole on the high-pressure common rail pump body to be processed. The upper pressure plate is connected to the pressing part of the machining center and used for pressing the high-pressure common rail pump body to be machined on the positioning plate. The fixture can be matched with different pump bodies by replacing different drive side positioning pins, so that frequent replacement of the fixture is avoided, the machining efficiency is improved, the clamping precision is ensured, and the production cost is reduced.
Description
Technical Field
The invention relates to a universal fixture for machining a high-pressure common rail pump body.
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 the processing of the high-pressure common rail pump body, the pump bodies with different specifications and sizes need to be positioned by adopting corresponding clamps, and the clamps are repeatedly clamped and disassembled after being switched for 1 time for 30 minutes, so that the production efficiency is seriously influenced. In addition, the mounting precision of the clamp needs to be measured again after replacement and mounting are finished, if the measurement during the mounting of the clamp has errors, the size of a workpiece is easy to cause errors during processing, and the reject ratio of the processed part is improved. Meanwhile, a set of clamp is adopted corresponding to different pump bodies, so that the production cost is increased inevitably.
Disclosure of Invention
The invention aims to overcome the defects that in the prior art, the clamp for machining the high-pressure common rail pump body is complex to replace and affects the machining precision and the production cost, and provides a universal clamp for machining the high-pressure common rail pump body, which can solve the problems.
The invention solves the technical problems through the following technical scheme:
the utility model provides a universal fixturing for processing high pressure common rail pump body which characterized in that, it includes:
the mounting plate is used for connecting a workbench of a machining center;
the positioning plate is fixed on the upper surface of the mounting plate, and a driving side positioning pin hole and a plurality of groups of positioning pin holes are formed in the upper surface of the positioning plate;
the positioning diamond pin is detachably connected with the positioning pin hole, and the top of the positioning diamond pin is matched with a groove on the high-pressure common rail pump body to be processed;
the driving side positioning pin is detachably connected with the driving side positioning pin hole, and a round cap at the top of the driving side positioning pin is matched with a round hole in the high-pressure common rail pump body to be processed;
and the upper pressure plate is connected to the pressing part of the machining center and used for pressing the high-pressure common rail pump body to be machined on the positioning plate.
Preferably, the number of each group of the positioning pin holes is 2, and the 2 positioning pin holes are arranged along the extending direction of the groove on the high-pressure common rail pump body to be processed.
Preferably, the maximum distance between the centers of the positioning pin holes and the driving side positioning pin hole is 139mm, and the minimum distance between the centers of the positioning pin holes and the driving side positioning pin hole is 114.5 mm.
Preferably, the number of the positioning pin holes is 3, and the 3 groups of the positioning pin holes are arranged along a direction perpendicular to the circular center line of each group of the positioning pin holes.
Preferably, the drive side locating pin is made of T10A steel and is heat treated HRC 4-50.
Preferably, the number of the drive side positioning pins is multiple, and the multiple drive side positioning pins can be replaced with each other.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows: the fixture can be matched with different high-pressure common rail pump bodies by replacing different driving side positioning pins, so that frequent replacement of the fixture is avoided, the machining efficiency is improved, the clamping precision is ensured, and the production cost is reduced.
Drawings
Fig. 1 is a schematic perspective view of a universal fixture for machining a high-pressure common rail pump body according to a preferred embodiment of the present invention.
Fig. 2 is a front view of a common clamp for clamping a high-pressure common rail pump body for machining the high-pressure common rail pump body in the preferred embodiment of the invention.
Description of reference numerals:
Drive side dowel hole 210
Dowel pin hole 220
Positioning diamond pin 300
Drive side positioning pin 400
High pressure common rail pump body 600
Groove 610
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Fig. 1 and 2 show a universal fixture for machining high-pressure common rail pump bodies, comprising: mounting plate 100, positioning plate 200, positioning diamond 300, driving side positioning pin 400 and upper platen 500. The mounting plate 100 is used for connecting a workbench of a machining center, the positioning plate 200 is fixed on the upper surface of the mounting plate 100, and the upper surface of the positioning plate 200 is provided with a driving side positioning pin hole 210 and a plurality of groups of positioning pin holes 220. The positioning diamond pin 300 is detachably connected with the positioning pin hole 220, and the top of the positioning diamond pin 300 is matched with the groove 610 on the high-pressure common rail pump body 600 to be processed. The driving side positioning pin 400 is detachably connected with the driving side positioning pin hole 210, and a circular cap at the top of the driving side positioning pin 400 is matched with a circular hole (not shown in the figure) on the high-pressure common rail pump body 600 to be processed. The upper pressure plate 500 is connected to a pressing portion of the machining center, and is used for pressing the high-pressure common rail pump body 600 to be machined onto the positioning plate 200.
In this scheme, when using anchor clamps clamping high pressure common rail pump body 600, at first fix mounting panel 100 on machining center's workstation through screw, pressing member, then fix locating plate 200 on mounting panel 100 through the screw, the relative fixed in position of locating plate 200 this moment. The positioning pin 300 is inserted into the positioning pin hole 220, and the driving side positioning pin 400 is inserted into the driving side positioning pin hole 210. In order to avoid the movement of the positioning diamond pin 300 and the driving side positioning pin 400 in the machining process, threaded holes can be formed in the side edge of the positioning plate 200, and the positioning diamond pin 300 and the driving side positioning pin 400 can be pressed through screws to fix the positions of the positioning diamond pin 300 and the driving side positioning pin 400. The positioning groove 610 and the round hole on the high-pressure common rail pump body 600 to be processed are respectively matched with the round caps at the top of the positioning diamond pin 300 and the top of the driving side positioning pin 400, and then the upper pressure plate 500 is pressed at the top of the high-pressure common rail pump body 600 to be processed, so that the purpose of clamping the high-pressure common rail pump body 600 is achieved. Pin hole connection belongs to detachable connection in the device, so that the clamp can be matched with different high-pressure common rail pump bodies 600 by replacing different drive side positioning pins 400, frequent replacement of the clamp is avoided, the machining efficiency is improved, the clamping precision is guaranteed, and the production cost is reduced.
In order to improve the positioning accuracy, the number of each group of positioning pin holes 220 is 2, and the 2 positioning pin holes 220 are arranged along the extending direction of the groove 610 on the high-pressure common rail pump body 600 to be processed. The matching of two positioning diamond pins 300 with the same groove 610 can improve the positioning accuracy.
In the present embodiment, the maximum center-to-center distance between the dowel hole 220 and the drive side dowel hole 210 is 139mm, and the minimum center-to-center distance is 114.5 mm.
In order to match the positioning diamond pins 300 with the grooves 610 of the high-pressure common rail pump bodies 600 of different models, in the scheme, the number of the positioning pin holes 220 is 3, and the 3 groups of positioning pin holes 220 are arranged along the direction perpendicular to the circular center line of each group of positioning pin holes 220. That is, the present clamp can be applied to at least 3 different types of high-pressure common rail pump bodies 600.
In this embodiment, the drive side positioning pin 400 is made of T10A steel and is heat treated HRC 4-50. The T10A steel has better toughness and higher strength. After heat treatment, the surface hardness is high, abrasion is not easy to occur, and high precision can be still maintained after repeated use.
In order to adapt the clamp to different types of high-pressure common rail pump bodies 600, the number of the drive side positioning pins 400 is multiple, and the multiple drive side positioning pins 400 can be replaced with each other.
In order to facilitate matching of the positioning diamond pin 300 and the driving side positioning pin 400 with corresponding positions of the high-pressure common rail pump body 600, the tops of the positioning diamond pin 300 and the driving side positioning pin 400 are both provided with chamfers or transition arcs.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the 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 scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (6)
1. The utility model provides a universal fixturing for processing high pressure common rail pump body which characterized in that, it includes:
the mounting plate is used for connecting a workbench of a machining center;
the positioning plate is fixed on the upper surface of the mounting plate, and a driving side positioning pin hole and a plurality of groups of positioning pin holes are formed in the upper surface of the positioning plate;
the positioning diamond pin is detachably connected with the positioning pin hole, and the top of the positioning diamond pin is matched with a groove on the high-pressure common rail pump body to be processed;
the driving side positioning pin is detachably connected with the driving side positioning pin hole, and a round cap at the top of the driving side positioning pin is matched with a round hole in the high-pressure common rail pump body to be processed;
and the upper pressure plate is connected to the pressing part of the machining center and used for pressing the high-pressure common rail pump body to be machined on the positioning plate.
2. The universal fixture for machining a high-pressure common rail pump body according to claim 1, wherein the number of the positioning pin holes in each group is 2, and the 2 positioning pin holes are arranged along the extending direction of the groove on the high-pressure common rail pump body to be machined.
3. The universal fixture for machining a high-pressure common rail pump body according to claim 2, wherein the maximum center-to-center distance between the positioning pin hole and the driving side positioning pin hole is 139mm, and the minimum center-to-center distance is 114.5 mm.
4. The universal fixture for machining a high-pressure common rail pump body according to claim 2, wherein the number of the positioning pin holes is 3, and the 3 positioning pin holes are arranged in a direction perpendicular to a circular center line of each positioning pin hole.
5. The universal fixture for machining a high-pressure common rail pump body as claimed in claim 1, wherein the drive-side positioning pin is made of T10A steel and is heat-treated with HRC 4-50.
6. The universal fixture for machining a high-pressure common rail pump body according to claim 1, wherein the number of the drive-side positioning pins is plural, and the plural drive-side positioning pins are replaceable with each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111347417.1A CN114029760A (en) | 2021-11-15 | 2021-11-15 | Universal clamp for processing high-pressure common rail pump body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111347417.1A CN114029760A (en) | 2021-11-15 | 2021-11-15 | Universal clamp for processing high-pressure common rail pump body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114029760A true CN114029760A (en) | 2022-02-11 |
Family
ID=80144358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111347417.1A Pending CN114029760A (en) | 2021-11-15 | 2021-11-15 | Universal clamp for processing high-pressure common rail pump body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114029760A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962687A (en) * | 2012-10-26 | 2013-03-13 | 西安航空动力控制科技有限公司 | Fixture for processing excircle and processing method for semicircular pump tilting tray |
| CN208051397U (en) * | 2018-02-02 | 2018-11-06 | 上海永茂泰汽车零部件有限公司 | A kind of new-energy automobile retarder end cover fixture |
| CN212145509U (en) * | 2020-05-12 | 2020-12-15 | 淄博欧恒机械有限公司 | High-pressure common rail pump body drilling tool |
| CN214444751U (en) * | 2021-02-18 | 2021-10-22 | 上海电装燃油喷射有限公司 | Common rail pump body machining center equipment universal fixturing of high pressure |
| CN214641830U (en) * | 2021-06-01 | 2021-11-09 | 重庆市翔海机械制造有限公司 | Special fixture for machining common rail pump body |
-
2021
- 2021-11-15 CN CN202111347417.1A patent/CN114029760A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102962687A (en) * | 2012-10-26 | 2013-03-13 | 西安航空动力控制科技有限公司 | Fixture for processing excircle and processing method for semicircular pump tilting tray |
| CN208051397U (en) * | 2018-02-02 | 2018-11-06 | 上海永茂泰汽车零部件有限公司 | A kind of new-energy automobile retarder end cover fixture |
| CN212145509U (en) * | 2020-05-12 | 2020-12-15 | 淄博欧恒机械有限公司 | High-pressure common rail pump body drilling tool |
| CN214444751U (en) * | 2021-02-18 | 2021-10-22 | 上海电装燃油喷射有限公司 | Common rail pump body machining center equipment universal fixturing of high pressure |
| CN214641830U (en) * | 2021-06-01 | 2021-11-09 | 重庆市翔海机械制造有限公司 | Special fixture for machining common rail pump body |
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