CN217071631U - Cold extrusion fuel pump core part machining clamp - Google Patents
Cold extrusion fuel pump core part machining clamp Download PDFInfo
- Publication number
- CN217071631U CN217071631U CN202220772018.3U CN202220772018U CN217071631U CN 217071631 U CN217071631 U CN 217071631U CN 202220772018 U CN202220772018 U CN 202220772018U CN 217071631 U CN217071631 U CN 217071631U
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- China
- Prior art keywords
- anchor clamps
- positioning
- pull rod
- positioning seat
- fixing pin
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Abstract
The utility model discloses a cold extrusion fuel pump core part machining fixture, including push rod device and auxiliary positioning benchmark device, the auxiliary positioning benchmark device includes the installation base, sets up the pull rod on the installation base, sets up the positioning seat on the pull rod, sets up elastomeric element between positioning seat and the installation base, and the terminal surface of positioning seat one end is fixed and is set up work piece angular positioning; the installation base is fixedly provided with an anchor clamps angle fixing pin, the positioning seat is provided with an anchor clamps angle fixing hole, the anchor clamps angle fixing pin passes through the anchor clamps angle fixing hole, the positioning seat slides along the anchor clamps angle fixing pin, and the end part of the anchor clamps angle fixing pin is always positioned in the anchor clamps angle fixing hole. The angular positioning reference and the clamping positioning reference of the workpiece are designed into a whole, and the fixture positioning reference and the reference used for positioning the workpiece are not in conflict with each other; the end face of the reference seat is basically vertical to the middle pull rod, the problem that a workpiece cannot be clamped in place is effectively solved, the workpiece is not influenced by the angular fixing pin of the clamp, and the requirement of high precision is met.
Description
Technical Field
The utility model relates to a cold extrusion device specifically relates to a cold extrusion fuel pump core parts machining anchor clamps.
Background
The fuel pump core part is gradually changed into an aluminum alloy precise cold extrusion part from an aluminum alloy die casting, and the extrusion part is characterized in that the oil groove is stable in size from the large end face, and the oil groove is unstable in size from the back positioning reference. The large end face of the extrusion part in the machining process needs to be machined, and the oil groove does not need to be machined, so that the depth dimension of the bottom of the oil groove from the large end face is unstable, and the clamping precision error of a common clamp is large during machining, so that the engineering capacity is poor.
There is chinese utility model patent 2018210529369 among the prior art to disclose a cold extrusion fuel pump core parts machining anchor clamps, and this anchor clamps change the mode of the location of location benchmark in the main shaft side, and consequently the location of the big terminal surface of part with the lathe tool gang side is transformed to the location benchmark, realizes that the turning has accomplished the big terminal surface after, two oil groove bottoms under the condition of not processing, the degree of depth size apart from the big terminal surface satisfies the requirement of high accuracy. However, the compression spring 5a has a pretightening force during assembly, one side of the auxiliary positioning reference block 3a is limited in moving distance by the limit pin 4a, and meanwhile, a gap exists between the auxiliary positioning reference block 3a and the ejector rod 2a, so that the end face of the auxiliary positioning reference block 3a cannot be kept perpendicular to the ejector rod 2a due to the pretightening force of the compression spring 5a, the clamping of the part 14a cannot be effectively performed in place, and after a manipulator is introduced, a crash event caused by the fact that the part 14a cannot be clamped in place is easy to occur. After the component 14a is clamped, the compression spring 5a is compressed, the auxiliary positioning reference block 3a moves towards the reference seat 1a, the end position of the limit pin 4a is not changed, the component 14a is inclined by the top of the limit pin 4a, and the machining precision error is large.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: to above shortcoming, the utility model provides a guarantee that assistance-localization real-time reference face is stable, satisfy the cold extrusion fuel pump core parts machining anchor clamps of high accuracy requirement.
The technical scheme is as follows: in order to solve the problems, the utility model discloses a cold extrusion fuel pump core part machining clamp, which comprises a push rod device and an auxiliary positioning reference device, wherein the auxiliary positioning reference device comprises a pull rod arranged on an installation base, a positioning seat is arranged on the pull rod, an elastic part is arranged between the positioning seat and the installation base, and the end surface of one end of the positioning seat far away from the installation base is fixedly provided with a workpiece for angular positioning; the mounting base is fixedly provided with an anchor clamps angular fixing pin, the extension direction of the anchor clamps angular fixing pin is parallel to the extension direction of the pull rod, the positioning seat is provided with an anchor clamps angular fixing hole, the anchor clamps angular fixing pin passes through the anchor clamps angular fixing hole, the positioning seat slides along the anchor clamps angular fixing pin, and the end part of the anchor clamps angular fixing pin is always positioned in the anchor clamps angular fixing hole.
Furthermore, the elastic component is a spring sleeved on the pull rod. The end face of one end, close to the mounting base, of the positioning seat is fixedly provided with a limiting portion, the limiting portion is sleeved on the pull rod, and one end of the spring is sleeved on the limiting portion. One end of the pull rod penetrates through the mounting base and is in threaded connection with the mounting base, and an adjusting nut is arranged at the end of the pull rod.
Has the advantages that: compared with the prior art, the utility model, its advantage is: the angular positioning reference and the clamping positioning reference of the workpiece are designed into a whole, and the fixture positioning reference and the reference used for positioning the workpiece are not in conflict with each other; the end face of the reference seat is basically vertical to the middle pull rod, the problem that a workpiece cannot be clamped in place is effectively solved, and stability and accuracy of a manipulator during clamping are guaranteed. The fixture angular fixing pin does not affect the workpiece, and the requirement of high precision is met.
Drawings
FIG. 1 is a schematic structural diagram of a cold extrusion fuel pump core part machining clamp in the prior art;
FIG. 2 is a schematic diagram of a prior art auxiliary positioning reference device;
FIG. 3 is a cross-sectional view of a prior art auxiliary positioning reference block;
FIG. 4 is a schematic structural view of the intercooling extrusion fuel pump core part processing clamp of the present invention;
fig. 5 is a schematic structural diagram of the auxiliary positioning reference device of the present invention;
fig. 6 is a cross-sectional view of the positioning seat of the present invention.
Detailed Description
As shown in fig. 4 to 6, the cold extrusion fuel pump core part machining fixture in this embodiment includes a push rod device disposed on a tool row of a machine tool and an auxiliary positioning reference device disposed on a main shaft of the machine tool, the auxiliary positioning reference device includes an installation base 2, a pull rod 3 is disposed on the installation base 2, one end of the pull rod 3 penetrates through the installation base 2, the pull rod 3 is in threaded connection with the installation base 2, and an adjusting nut 7 is disposed at an end of the pull rod 3 for adjusting the length of the pull rod 3, so as to adjust a distance between the positioning seat 4 and the installation base 2. The pull rod 3 is provided with a positioning seat 4, the other end of the pull rod 3 penetrates through the positioning seat 4, the positioning seat 4 slides on the pull rod 3, a spring 5 is arranged between the positioning seat 4 and the mounting base 2, and the spring 5 is sleeved on the outer side of the pull rod 3.
The end face of one end of the positioning seat 4 close to the installation base 2 is fixedly provided with a limiting part 43, the limiting part 43 is sleeved on the pull rod 3, one end of the spring 5 is sleeved on the limiting part 43, rigidity of the spring 5 to the positioning seat 4 is reduced through the limiting part 43, and the end face of the positioning seat 4 is perpendicular to the extension direction of the pull rod 3. The end face of one end of the positioning seat 4, which is far away from the installation base 2, is fixedly provided with a workpiece angular positioning pin 41, the workpiece angular positioning pin 41 is used for preventing the part from rotating relative to the positioning seat 4, and the workpiece angular positioning pin 41 moves along with the movement of the positioning seat 4.
The installation base 2 is fixedly provided with the fixture angular fixing pin 6, the extension direction of the fixture angular fixing pin 6 is parallel to the extension direction of the pull rod 3, the positioning seat 4 is provided with the fixture angular fixing hole 42, the fixture angular fixing pin 6 penetrates through the fixture angular fixing hole 42, the positioning seat 4 slides along the fixture angular fixing pin 6, the fixture angular fixing pin 6 is used for limiting the positioning seat 4 to rotate, the end part of the fixture angular fixing pin 6 is always located in the fixture angular fixing hole 42, and the fixture angular fixing pin 6 is prevented from extending out of the end face of the positioning seat 4 to affect the position of a part.
The angular positioning reference and the clamping positioning reference of the workpiece are designed into a whole, and the fixture positioning reference and the reference used for positioning the workpiece are not in conflict with each other; the end face of the reference seat is basically vertical to the middle pull rod, the problem that a workpiece cannot be clamped in place is effectively solved, and stability and accuracy of a manipulator during clamping are guaranteed. The fixture angular fixing pin 6 does not affect the workpiece, and meets the requirement of high precision.
Claims (5)
1. A cold extrusion fuel pump core part machining clamp comprises a push rod device (1) and an auxiliary positioning reference device, wherein the auxiliary positioning reference device comprises an installation base (2), a pull rod (3) is arranged on the installation base (2), a positioning seat (4) is arranged on the pull rod (3), and an elastic component (5) is arranged between the positioning seat (4) and the installation base (2), and is characterized in that a workpiece angular positioning pin (41) is fixedly arranged on the end face of one end, far away from the installation base (2), of the positioning seat (4); the installation base (2) is fixedly provided with an anchor clamps angular fixing pin (6), the extending direction of the anchor clamps angular fixing pin (6) is parallel to the extending direction of the pull rod (3), the positioning seat (4) is provided with an anchor clamps angular fixing hole (42), the anchor clamps angular fixing pin (6) passes through the anchor clamps angular fixing hole (42), the positioning seat (4) slides along the anchor clamps angular fixing pin (6), and the end part of the anchor clamps angular fixing pin (6) is always positioned in the anchor clamps angular fixing hole (42).
2. The cold extrusion fuel pump core part machining clamp as claimed in claim 1, wherein the elastic component (5) is a spring sleeved on the pull rod (3).
3. The cold extrusion fuel pump core part machining clamp according to claim 2, wherein a limiting portion (43) is fixedly arranged on an end face of the positioning seat (4) close to one end of the mounting base (2), the limiting portion (43) is sleeved on the pull rod (3), and one end of the spring is sleeved on the limiting portion (43).
4. The cold extrusion fuel pump core part machining clamp according to claim 3, wherein one end of the pull rod (3) penetrates through the mounting base (2) and is in threaded connection with the mounting base (2), and an adjusting nut (7) is arranged at the end of the pull rod (3).
5. The cold extrusion fuel pump core parts machining fixture of claim 1, wherein the push rod device is arranged on a tool row of a machine tool, and the auxiliary positioning reference device is arranged on a main shaft of the machine tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220772018.3U CN217071631U (en) | 2022-04-02 | 2022-04-02 | Cold extrusion fuel pump core part machining clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220772018.3U CN217071631U (en) | 2022-04-02 | 2022-04-02 | Cold extrusion fuel pump core part machining clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217071631U true CN217071631U (en) | 2022-07-29 |
Family
ID=82554231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220772018.3U Active CN217071631U (en) | 2022-04-02 | 2022-04-02 | Cold extrusion fuel pump core part machining clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217071631U (en) |
-
2022
- 2022-04-02 CN CN202220772018.3U patent/CN217071631U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |