CN216540905U - Three-jaw for machining thin-wall parts - Google Patents
Three-jaw for machining thin-wall parts Download PDFInfo
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- CN216540905U CN216540905U CN202120415038.0U CN202120415038U CN216540905U CN 216540905 U CN216540905 U CN 216540905U CN 202120415038 U CN202120415038 U CN 202120415038U CN 216540905 U CN216540905 U CN 216540905U
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Abstract
The utility model discloses a new three-jaw for processing thin-wall parts, comprising: chuck and three jack catchs, three the jack catch is fixed respectively to be located on the chuck, three the jack catch is followed respectively the circumferencial direction of chuck sets up, each all be equipped with on the jack catch and press from both sides tight piece, three the inner wall of pressing from both sides tight piece all is convex setting, three the inboard of pressing from both sides tight piece all is the cockscomb structure setting. The clamping block is arranged, the inner wall of the clamping block is arranged in an arc shape, the contact surface is increased, the deformation of a product can be reduced when the product is clamped, and the stress of the clamping part of the product is relatively uniform.
Description
Technical Field
The utility model relates to the technical field of three-jaw chucks, in particular to a novel three-jaw chuck for machining thin-wall parts.
Background
At present, in the machining process, standard three-jaw thin-wall parts purchased from the market are deformed easily due to the fact that the width of a jaw at a product clamping position is small, and particularly, the deformed parts cannot meet the requirement of a product drawing, so that unqualified products are caused.
Disclosure of Invention
Aiming at the problems of the existing standard three-jaw, the novel three-jaw for processing thin-wall parts is provided with the clamping block, the contact surface is increased, the deformation of the product can be reduced when the product is clamped, and the stress of the clamping part of the product is relatively uniform.
The specific technical scheme is as follows:
a new three-jaw for machining thin-walled parts, comprising: chuck and three jack catchs, three the jack catch is fixed respectively to be located on the chuck, three the jack catch is followed respectively the circumferencial direction of chuck sets up, each all be equipped with on the jack catch and press from both sides tight piece, three the inner wall of pressing from both sides tight piece all is convex setting, three the inboard of pressing from both sides tight piece all is the cockscomb structure setting.
The novel three-jaw for processing thin-wall parts is characterized in that each jaw is provided with a first screw.
The above-mentioned new three-jaw for processing thin wall part, wherein, the central axis of three said first screws is on the same first circumference.
The end surfaces of the first screws, which are far away from one end of the chuck, are positioned on the same plane.
In the new three-jaw for processing thin-wall parts, the inner walls of the three clamping blocks are provided with arc surfaces, and the three arc surfaces are positioned on the same second circumferential surface.
The novel three-jaw for processing thin-wall parts is characterized in that a plurality of convex teeth are arranged on the inner side of each clamping block, the convex teeth are distributed along the width direction of the clamping block respectively, each convex tooth is arranged along the length direction of the clamping block respectively, and the convex teeth are arranged at equal intervals along the width direction of the clamping block.
In the above new three-jaw for processing thin-wall parts, the cross section of each of the convex teeth is in an isosceles trapezoid shape.
In the above new three-jaw for processing thin-wall parts, each of the convex teeth is arranged in an arc shape.
In the above new three-jaw for processing thin-wall parts, a groove is formed between two adjacent teeth, each groove is in arc shape, and the cross section of each groove is in isosceles trapezoid shape.
The novel three-jaw for processing thin-wall parts is characterized in that each groove is arranged along the length direction of the clamping block, a plurality of grooves are distributed along the width direction of the clamping block respectively, and two adjacent grooves are arranged at equal intervals along the width direction of the clamping block.
Compared with the prior art, the technical scheme has the positive effects that:
(1) the clamping block is arranged, the inner wall of the clamping block is arranged in an arc shape, the contact surface is increased, the deformation of a product can be reduced when the product is clamped, and the stress on the clamping part of the product is relatively uniform;
(2) the clamping block is provided with the plurality of convex teeth which are saw-tooth-shaped anti-skidding teeth, so that the anti-skidding clamping block has an anti-skidding effect and improves the stability when a product is clamped;
(3) the first screw is arranged, one end, far away from the chuck, of the first screw is close to a flat product to be tightly supported, machining is carried out on a lathe, and stability in product clamping is further improved.
Drawings
FIG. 1 is a schematic diagram of a new three-jaw product-clamping structure for processing thin-wall parts according to the present invention;
FIG. 2 is a view of the new three-jaw clamp for machining thin-walled parts according to the present invention in a product-clamping state;
FIG. 3 is a schematic structural view of a new three-jaw clamping jaw and clamping block for machining thin-wall parts according to the present invention;
fig. 4 is a structural sectional view in the direction of a-a of fig. 3 of a new three-jaw for processing thin-wall parts according to the present invention;
FIG. 5 is an enlarged view at B of FIG. 4 of a new three-jaw for machining thin-walled parts in accordance with the present invention;
in the drawings: 1. a chuck; 2. a claw; 3. a clamping block; 4. a first screw; 5. a second screw; 6. a convex tooth; 7. a groove; 8. tightening the clamping force; 9. welding; 10. producing a product; 11. a first hole; 12. a second aperture.
Detailed Description
The utility model is further described with reference to the following drawings and specific examples, which are not intended to be limiting.
Fig. 1 is a schematic structural view of a new three-jaw clamp product state for processing thin-wall parts according to the present invention, fig. 2 is a clamping view of a new three-jaw clamp product state for processing thin-wall parts according to the present invention, fig. 3 is a schematic structural view of a jaw and a clamping block of a new three-jaw clamp product for processing thin-wall parts according to the present invention, fig. 4 is a sectional structural view of a new three-jaw clamp product in a direction of a-a in fig. 3, fig. 5 is an enlarged view of a new three-jaw clamp product in a direction of B in fig. 4, as shown in fig. 1 to 5, showing a new three-jaw clamp product for processing thin-wall parts according to a preferred embodiment, including: chuck 1 and three-jaw 2, three-jaw 2 are fixed respectively and are located on chuck 1, and three-jaw 2 sets up along chuck 1's circumferencial direction respectively, all is equipped with on each jack catch 2 and presss from both sides tight piece 3, and the inner wall that three pressed from both sides tight piece 3 all is convex setting, and the inboard that three pressed from both sides tight piece 3 all is the cockscomb structure setting.
Further, as a preferred embodiment, each jaw 2 is provided with a first screw 4.
Further, as a preferred embodiment, the central axes of the three first screws 4 are located on the same first circumferential surface.
Further, as a preferred embodiment, the end surfaces of the ends of the three first screws 4 far away from the chuck 1 are on the same plane.
The above are merely preferred embodiments of the present invention, and the embodiments and the protection scope of the present invention are not limited thereby.
The present invention also has the following embodiments in addition to the above:
in a further embodiment of the present invention, please refer to fig. 1 to 5, the inner walls of the three clamping blocks 3 all have arc surfaces, and the three arc surfaces are all located on the same second circumferential surface.
Preferably, the clamping block 3 is a cuboid, and the inner wall of the clamping block 3 is in an inwards concave arc shape.
In a further embodiment of the present invention, a plurality of teeth 6 are disposed on the inner side of each clamping block 3, the plurality of teeth 6 are respectively distributed along the width direction of the clamping block 3, each tooth 6 is respectively disposed along the length direction of the clamping block 3, and two adjacent teeth 6 are disposed at equal intervals along the width direction of the clamping block 3.
In order to reduce the deformation of the product 10 during clamping, the utility model increases a contact surface for each clamping block 3, so that the excircle of a larger part of the product 10 can be surrounded, the clamping part of the product 10 is stressed uniformly, and the clamping force is adjusted, thereby relieving the deformation of the product 10.
The clamping arc size of the clamping block 3 can be according to the size of the excircle of the clamping part of the mechanical part, and the clamping jaw 2 and the clamping block 3 must be installed on a lathe for processing, namely, a lathe is matched, so that the coaxiality of the clamping part and the lathe spindle is ensured.
In a further embodiment of the present invention, the cross section of each tooth 6 is in the shape of an isosceles trapezoid.
In a further embodiment of the utility model, each tooth 6 is arranged in an arc.
In a further embodiment of the present invention, a groove 7 is formed between two adjacent teeth 6, each groove 7 is disposed in an arc shape, and the cross section of each groove 7 is disposed in an isosceles trapezoid shape.
In a further embodiment of the present invention, each groove 7 is disposed along the length direction of the clamping block 3, the plurality of grooves 7 are respectively distributed along the width direction of the clamping block 3, and two adjacent grooves 7 are disposed at equal intervals along the width direction of the clamping block 3.
Preferably, each jaw 2 is provided with a first hole 11 and two second holes 12, the first hole 11 is a threaded hole for mounting a first screw, and the second hole 12 can be a threaded hole or a round hole for mounting a second screw.
In a further embodiment of the utility model, the first screw 4 is a hexagonal-head screw.
In a further embodiment of the utility model, the second screw 5 is a socket head cap screw.
In a further embodiment of the utility model, a hexagon head screw on the same jaw 2 is located between two socket head cap screws.
In a further embodiment of the utility model, the clamping block 3 is welded to the outer end of the jaw 2.
Preferably, a welding joint 9 is arranged between the clamping block 3 and the clamping jaw 2.
According to the utility model, the clamping block 3 is arranged, and the inner wall of the clamping block 3 is arc-shaped, so that the contact surface is increased, the deformation of the product 10 can be reduced when the product 10 is clamped, and the stress on the clamping part of the product 10 is relatively uniform.
The clamping block 3 is provided with the plurality of convex teeth 6, the convex teeth 6 are saw-tooth-shaped anti-skidding teeth, the friction force of a clamped product 10 is increased, the anti-skidding function is achieved, and the stability of the clamped product 10 is improved.
According to the utility model, the first screw 4 is arranged, one end of the first screw 4, which is far away from the chuck 1, is close to the flat product 10 for tightening, and the flat product is machined on a lathe, so that the stability of the product 10 in clamping is further improved.
Preferably, the chuck 1 is provided with a clamping force tightening part 8.
The utility model adjusts the clamping force: first, a plurality of waste products 10 are found for initial debugging. According to the first principle of safety, under the premise of ensuring the product 10 to be clamped, the torsion is adjusted to be 110nm, 115nm, 120nm, 125nm and 130nm, and the torsion is divided into several types for comparison test. And (5) sending three coordinates for inspection, and when the clamping force is 125nm, performing trial machining, wherein the mechanical part meets the technical requirements.
The specific implementation and use method of the utility model comprises the following steps: the product 10 is placed in the three claws, the back surface of the product is close to the flat product 10, the outer circle of the product 10 is clamped by using a torque wrench according to the torque of 125nm, the bottom of the product is tightly supported by using 3 hexagonal-head screws, and the product is machined on a lathe.
Table one: corresponding clamping force and form and position tolerance schedule using standard three-jaw
Table two: list of clamping force and form and position tolerance under the condition of using new three-jaw and not arranging first screw
Table three: the new three claws are used and provided with a first screw, and under the condition that the inner wall of the clamping block is provided with convex teeth, the corresponding clamping force and form and position tolerance summary table
While the utility model 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 detail may be made therein without departing from the spirit and scope of the utility model.
Claims (10)
1. A new three-jaw for machining thin-walled parts, comprising: chuck and three jack catchs, three the jack catch is fixed respectively to be located on the chuck, three the jack catch is followed respectively the circumferencial direction of chuck sets up, each all be equipped with on the jack catch and press from both sides tight piece, three the inner wall of pressing from both sides tight piece all is convex setting, three the inboard of pressing from both sides tight piece all is the cockscomb structure setting.
2. The new three-jaw for thin-walled parts according to claim 1 wherein each jaw is provided with a first screw.
3. The new three-jaw for processing thin-wall parts as claimed in claim 2, wherein the central axes of the three first screws are on the same first circumferential surface.
4. The new three-jaw for thin-walled parts according to claim 2 is characterized in that the end faces of the first screws at the ends far away from the chuck are in the same plane.
5. The new three-jaw for processing thin-wall parts as claimed in claim 1, wherein the inner walls of the three clamping blocks have circular arc surfaces, and the three circular arc surfaces are all located on the same second circumferential surface.
6. The new three-jaw for processing thin-wall parts according to claim 1, wherein a plurality of teeth are disposed on the inner side of each clamping block, the plurality of teeth are distributed along the width direction of the clamping block, each tooth is disposed along the length direction of the clamping block, and two adjacent teeth are disposed at equal intervals along the width direction of the clamping block.
7. The new three-jaw for thin-walled parts as claimed in claim 6, wherein each of said teeth has an isosceles trapezoid cross section.
8. The new three-jaw apparatus for machining thin-walled parts as claimed in claim 7, wherein each of the teeth is formed in an arc shape.
9. The new three-jaw for thin-walled parts as claimed in claim 8, wherein a groove is formed between two adjacent teeth, each groove is formed in an arc shape, and each groove has an isosceles trapezoid cross section.
10. The new three-jaw for processing thin-wall parts according to claim 9, wherein each of the grooves is disposed along the length direction of the clamping block, a plurality of the grooves are respectively distributed along the width direction of the clamping block, and two adjacent grooves are disposed at equal intervals along the width direction of the clamping block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120415038.0U CN216540905U (en) | 2021-02-25 | 2021-02-25 | Three-jaw for machining thin-wall parts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120415038.0U CN216540905U (en) | 2021-02-25 | 2021-02-25 | Three-jaw for machining thin-wall parts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216540905U true CN216540905U (en) | 2022-05-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120415038.0U Active CN216540905U (en) | 2021-02-25 | 2021-02-25 | Three-jaw for machining thin-wall parts |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216540905U (en) |
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2021
- 2021-02-25 CN CN202120415038.0U patent/CN216540905U/en active Active
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