CN217832718U - Powder metallurgy VVT rotor special fixture - Google Patents
Powder metallurgy VVT rotor special fixture Download PDFInfo
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- CN217832718U CN217832718U CN202222025777.6U CN202222025777U CN217832718U CN 217832718 U CN217832718 U CN 217832718U CN 202222025777 U CN202222025777 U CN 202222025777U CN 217832718 U CN217832718 U CN 217832718U
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Abstract
The utility model belongs to the technical field of machining clamps, in particular to a special clamp for a powder metallurgy VVT rotor, which comprises a chuck, a connecting clamping block and a connecting block; the chuck comprises a base and at least three sliding blocks, each sliding block is connected with a connecting block, the connecting blocks are fixedly connected with the sliding blocks, at least three connecting clamping blocks are arranged, each connecting clamping block is evenly distributed on the connecting block by the center of the base, the connecting clamping blocks are fixedly connected with the connecting blocks, and the front ends of the connecting clamping blocks are fixedly provided with self-turning chucks; the front end of the self-turning chuck is arc-shaped. The utility model discloses rely on the centre of a circle of three slider from centering characteristic location VVT rotor, the front end is inlayed from the car formula chuck from the car, and the front end is the arc shape, and is identical with the work piece circular arc that adds, and the work piece is not damaged when both can protecting the centre gripping, also is convenient for change.
Description
Technical Field
The utility model belongs to the technical field of the machine tooling anchor clamps, concretely relates to powder metallurgy VVT rotor special fixture.
Background
The special fixture is required for clamping a certain product part in a certain procedure, the special fixture is specially designed and manufactured, is provided with a specific service object and is high in pertinence, an inner hole, a step hole, an inner hole annular groove and upper and lower end faces need to be machined after a powder metallurgy VVT rotor blank is manufactured, at present, a special fixture for machining the part is not provided, a universal fixture is usually adopted for positioning during machining, but when the universal fixture is used for three-jaw clamping and clamping a small outer circle of a rotor, an angle cannot be avoided, and the edge of a jaw body needs to be cut to be avoided.
Meanwhile, the clamping jaws of the three-jaw chuck cannot be effectively attached to the surface of a workpiece, and the workpiece is inevitably damaged.
SUMMERY OF THE UTILITY MODEL
To the technical problem, the utility model provides a powder metallurgy VVT rotor special fixture, this anchor clamps set up the connection fixture block, carry out the centre gripping to the work piece through connecting the fixture block to can with the surface laminating of work piece, avoid or reduce to cause the damage to the work piece surface.
In order to solve the technical problem, the utility model discloses a technical scheme be:
a special fixture for a powder metallurgy VVT rotor comprises a chuck, a connecting clamping block and a connecting block; the chuck comprises a base and sliding blocks, at least three sliding blocks are arranged on the base, each sliding block is connected with a connecting block, the connecting blocks are fixedly connected with the sliding blocks, at least three connecting clamping blocks are arranged, each connecting clamping block is evenly distributed on the connecting block by the center of the base, the connecting clamping blocks are fixedly connected with the connecting blocks, and the front ends of the connecting clamping blocks are fixedly provided with self-turning chucks; the front end of the self-turning chuck is arc-shaped.
The connecting block comprises a connecting part and a plane positioning part, and the connecting part and the plane positioning part are fixedly connected or are of an integrated structure; the connecting part is fixedly connected with the sliding block, and the plane positioning part is fixedly connected with the connecting clamping block.
The connecting clamping block is fixedly connected with the plane positioning part through a fixing bolt, and the plane positioning part is provided with a plurality of bolt holes.
The connecting clamping block is provided with a counter bore connected with the fixing bolt.
The counter sink is a waist-shaped counter sink.
The plane positioning part is provided with a plurality of annular grooves.
The self-turning chuck is fixedly connected or detachably connected with the front end of the connecting clamping block.
And the self-turning chuck is fixedly connected with the connecting clamping block in an inserting manner.
The connecting clamping block is provided with a slot, and an inserting block connected with the slot is fixed on the self-turning chuck.
The shape of the slot and the shape of the plug block are both trapezoidal.
Compared with the prior art, the utility model, the beneficial effect who has is:
the utility model discloses rely on the centre of a circle of three slider from centering characteristic location VVT rotor, the front end is inlayed from the car formula chuck from the car, and the front end is the arc shape, and is identical with the work piece circular arc that adds, and the work piece is not damaged when both can protecting the centre gripping, also is convenient for change.
The end surface of the plane positioning device of the utility model is provided with the annular groove, on one hand, the effective contact area after the workpiece is laminated can be reduced, and the influence of scrap iron and the like is avoided; on the other hand, the stability of the reference surface is guaranteed, the friction force can be effectively increased after the 5 connecting clamping blocks are installed, and the sliding in the machining process is avoided.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a top view of the present invention;
fig. 3 is a schematic structural diagram of the connecting block of the present invention;
fig. 4 is a schematic structural view of the connecting fixture block of the present invention;
FIG. 5 is a schematic view showing a connection state between the connection block and the self-locking chuck of the present invention in one direction;
fig. 6 is a schematic view of the connection state between the connection block and the self-turning chuck of the present invention in another direction;
wherein: the device comprises a base 1, a connecting clamping block 2, a connecting block 3, a connecting part 30, a plane positioning part 31, a self-turning chuck 4, a fixing bolt 5, a counter bore 6, an annular groove 7, a workpiece 8, a sliding block 9, a bolt connecting hole 10, a bolt hole 11, a slot 12 and an inserting block 13.
Detailed Description
The technical solutions in the embodiments of the present invention are described below clearly and completely, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1 to 4, a jig for a powder metallurgy VVT rotor includes a chuck, a connecting block 2, and a connecting block 3. The chuck is arranged by adopting a structure of a three-jaw chuck in the prior art, namely, the base 1 is a chuck body, and the sliding block 9 is a movable jaw; the three-jaw chuck is also provided with a corresponding jaw driving mechanism, and each sliding block 9 can be driven to movably clamp through the jaw driving mechanism.
Each sliding block 9 is connected with a connecting block 3, the connecting blocks 3 are fixedly connected with the sliding blocks, at least three connecting clamping blocks 2 are arranged, the three connecting clamping blocks 2 are evenly distributed on the connecting block 3 by the center of the base 1, the connecting clamping blocks 2 are fixedly connected with the connecting blocks 3, and the front ends of the connecting clamping blocks 2 are fixedly provided with self-turning chucks 4; the front end of the self-turning chuck 4 is arc-shaped.
The number of the connecting clamping blocks 2 can be adjusted and set according to actual conditions, and preferably five connecting clamping blocks are arranged.
When machining inner hole steps, annular grooves, end faces and other parts, a workpiece is placed on the connecting blocks 3, the sliding blocks 9 and the connecting blocks 3 fixed on the sliding blocks are driven to move through the jaw driving mechanism of the chuck, the circular arc part obtained from the lathe chuck 4 is attached to and clamped with the small outer circle of the workpiece 8, namely, the workpiece is positioned close to a plane, and machining can be carried out.
The arc shape at the front end of the self-turning chuck 4 can be rotated through a chuck (connected with a machine tool) under the condition that a workpiece is not assembled, and the turning tool turns out an arc with a size suitable for the workpiece; namely the self-turning chuck.
Further, the connecting block 3 is preferably configured to include a connecting portion 30 and a plane positioning portion 31, and the connecting portion 30 and the plane positioning portion 31 are fixedly connected or integrally configured; is fixedly connected with the sliding block 9 through the connecting part 30 and is fixedly connected with the connecting fixture block 2 through the plane positioning part 31. The connecting part 30 is provided with a corresponding bolt connecting hole 10 which is fixedly connected with the sliding block 9 in a bolt mode.
Further, the connecting clamping block 2 is fixedly connected with the plane positioning part through a fixing bolt 5, and the plane positioning part is provided with a plurality of bolt holes 11. Specifically, each connecting fixture block 2 is fixedly connected with the plane positioning part through two fixing bolts 5; when five connecting clamping blocks 2 are arranged, five bolt holes 11 are uniformly distributed on the circumference of the same radius of the plane positioning part.
Meanwhile, five bolt holes 11 can be unevenly distributed on the circumferences with different radiuses, so that the connecting fixture block 2 can present different connecting angles after being connected; the positions and the number of the bolt holes 11 can be determined according to actual needs.
Furthermore, a counter bore 6 connected with the fixing bolt 5 is arranged on the connecting fixture block 2; the counter sunk hole 6 is arranged to prevent the head of the bolt from extending out.
Further, the counter sink 6 is a waist-shaped counter sink, and the waist length of the counter sink 6 is larger than the distance between the two bolts; after the bolts are unscrewed, the positions of the connecting clamping blocks 2 can be adjusted, fine adjustment can be performed, the correct positions of the connecting clamping blocks 2 are guaranteed, and the arc-shaped end part of the self-turning chuck 4 can be attached to a workpiece.
Furthermore, the plane positioning part is provided with a plurality of annular grooves 7, so that on one hand, the effective contact area of the attached workpieces can be reduced, and the influence of scrap iron and the like can be avoided; meanwhile, friction force can be increased, and the sliding of the connecting clamping block 2 in the machining process is avoided.
Further, the connecting fixture block 2 and the self-turning chuck 4 can be fixed in an embedded manner, a plurality of connecting fixture blocks 2 can be arranged, and the radian of the self-turning chuck 4 at the front end of each connecting fixture block 2 is different; if clamping a phi 60 circle, replacing a phi 60 arc insert (self-turning chuck) and the connecting clamping block 2, and when clamping a phi 30 workpiece, replacing a phi 30 arc insert (self-turning chuck) and the connecting clamping block 2; namely, after the self-turning chuck 4 (containing the connecting clamping block 2) with the matched arc is replaced, the clamping consistency is ensured.
Besides the above replacement mode, the following structure can be adopted; the self-turning chuck 4 is detachably connected with the connecting clamping block 2, and the self-turning chuck 4 can be independently replaced to match different workpieces.
Further, as shown in fig. 5 and 6, the bicycle chuck 4 is preferably connected to the connection block 2 by means of a plug-in connection.
Specifically, the method comprises the following steps: the connecting clamping block 2 is provided with a slot 12, and the self-turning clamping head 4 is fixed with an inserting block 13 connected with the slot 12.
The shapes of the slot 12 and the insert block 13 are both trapezoidal, the slot 12 is not a through slot, and the insert block 13 can be abutted against the bottom of the slot 12; the depth of the insert block 13 is the same as that of the slot 12, or is slightly larger than that of the slot 12, and the self-turning chuck 4 can be pressed tightly by the connecting fixture block 2.
The above description has been made in detail only for the preferred embodiment of the present invention, but the present invention is not limited to the above embodiment, and various changes can be made without departing from the spirit of the present invention within the knowledge scope of those skilled in the art, and all such changes are intended to be encompassed by the present invention.
Claims (10)
1. The utility model provides a powder metallurgy VVT rotor special fixture which characterized in that: comprises a chuck, a connecting clamping block (2) and a connecting block (3); the chuck comprises a base (1) and sliding blocks (9), at least three sliding blocks (9) are arranged on the base (1), each sliding block (9) is connected with a connecting block (3), the connecting blocks (3) are fixedly connected with the sliding blocks (9), at least three connecting clamping blocks (2) are arranged, each connecting clamping block (2) is evenly distributed on the connecting block (3) by the center of the base (1), the connecting clamping blocks (2) are fixedly connected with the connecting blocks (3), and a self-turning clamping head (4) is fixed at the front end of each connecting clamping block (2); the front end of the self-turning chuck (4) is arc-shaped.
2. The special fixture for the powder metallurgy VVT rotor according to claim 1, wherein: the connecting block (3) comprises a connecting part (30) and a plane positioning part (31), and the connecting part (30) and the plane positioning part (31) are fixedly connected or are of an integrated structure; is fixedly connected with the sliding block (9) through a connecting part (30) and is fixedly connected with the connecting clamping block (2) through a plane positioning part (31).
3. The special clamp for the powder metallurgy VVT rotor according to claim 2, wherein: the connecting clamping block (2) is fixedly connected with the plane positioning part (31) through a fixing bolt (5), and a plurality of bolt holes are formed in the plane positioning part (31).
4. The special clamp for the powder metallurgy VVT rotor according to claim 3, wherein: the connecting clamping block (2) is provided with a counter bore (6) connected with the fixing bolt (5).
5. The special clamp for the powder metallurgy VVT rotor according to claim 4, wherein: the counter sink (6) is a waist-shaped counter sink.
6. The special fixture for the powder metallurgy VVT rotor according to any one of claims 2 to 5, wherein: the plane positioning part (31) is provided with a plurality of annular grooves (7).
7. The special fixture for the powder metallurgy VVT rotor according to claim 1, wherein: the self-turning chuck (4) is fixedly connected or detachably connected with the front end of the connecting clamping block (2).
8. The special fixture for the powder metallurgy VVT rotor according to claim 1 or 7, wherein: the self-turning chuck (4) is fixedly connected with the connecting clamping block (2) in an inserting mode.
9. The special clamp for the powder metallurgy VVT rotor according to claim 8, wherein: the connecting clamping block (2) is provided with a slot (12), and an inserting block (13) connected with the slot (12) is fixed on the bicycle chuck (4).
10. The special clamp for the powder metallurgy VVT rotor according to claim 9, wherein: the shape of the slot (12) and the shape of the plug block (13) are both trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222025777.6U CN217832718U (en) | 2022-08-03 | 2022-08-03 | Powder metallurgy VVT rotor special fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222025777.6U CN217832718U (en) | 2022-08-03 | 2022-08-03 | Powder metallurgy VVT rotor special fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217832718U true CN217832718U (en) | 2022-11-18 |
Family
ID=84011566
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222025777.6U Active CN217832718U (en) | 2022-08-03 | 2022-08-03 | Powder metallurgy VVT rotor special fixture |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217832718U (en) |
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2022
- 2022-08-03 CN CN202222025777.6U patent/CN217832718U/en active Active
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