CN221231611U - Self-rotating positioning claw block tool for numerical control vehicle - Google Patents
Self-rotating positioning claw block tool for numerical control vehicle Download PDFInfo
- Publication number
- CN221231611U CN221231611U CN202323185667.7U CN202323185667U CN221231611U CN 221231611 U CN221231611 U CN 221231611U CN 202323185667 U CN202323185667 U CN 202323185667U CN 221231611 U CN221231611 U CN 221231611U
- Authority
- CN
- China
- Prior art keywords
- claw
- positioning shaft
- claw block
- positioning
- numerical control
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 210000000078 claw Anatomy 0.000 title claims abstract description 80
- 239000011159 matrix material Substances 0.000 claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000009434 installation Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
Landscapes
- Jigs For Machine Tools (AREA)
Abstract
The utility model relates to a self-rotating positioning claw block tool for a numerical control vehicle, which is a three-claw chuck, wherein each claw comprises a claw block matrix, a movable claw and a positioning shaft, the claw block matrix is detachably arranged on the chuck, the movable claw is detachably arranged above the front end of the claw block matrix through the positioning shaft, the inner measuring surface of the movable claw is an arc and is provided with a step, and the inner side surface of the step is a clamping surface; the movable claw can automatically test and rotate, the circular arc diameter of the inner side surface of the step is matched with the outer diameter of the product to be processed to be clamped, the circular arc diameter is smaller than the outer diameter, the height of the step is matched with the total height of the product to be processed, and a positioning shaft fixing device is arranged below the positioning shaft. When the tool is used, the movable claw can automatically rotate to adjust the angle according to the outer circle condition of a product to be processed, so that the influence of the outer circle deformation of a workpiece on the clamping force can be reduced, and the processing quality of the product is improved.
Description
Technical Field
The utility model belongs to the field of machinery, and particularly relates to a self-rotating positioning claw block tool for a numerical control vehicle.
Background
For thin-wall circular ring parts, the parts are easy to deform after heat treatment, the outer diameter of the parts is required to be clamped by a clamp during machining, and the technical parameters of flatness, aperture and roundness of the end surfaces at two sides of the parts cannot be ensured due to the deformation of the parts, so that the parameters of technical requirements are required to be realized by fixing and machining the parts by using special tools.
Disclosure of utility model
In order to solve the defects and shortcomings, the embodiment of the utility model provides a self-rotating positioning claw block tool for a numerical control vehicle.
The technical scheme is as follows: the utility model provides a numerical control is with self-rotating location claw piece frock, the frock is three-jaw chuck, and every claw all includes claw piece base member, movable claw and locating shaft, claw piece base member demountable installation is on the chuck, and movable claw passes through the locating shaft demountable installation in the front end top of claw piece base member, the interior survey face of movable claw is the circular arc and is equipped with the step, the medial surface of step is the clamping surface;
The movable claw can automatically test and rotate around the positioning shaft according to the size of the outer diameter to be clamped of a product to be processed, the circular arc diameter of the inner side surface is matched with the size of the outer diameter to be clamped of the product to be processed and smaller than the outer diameter, the height of the step is matched with the total height of the product to be processed, and the distance that the end face to be processed of the product to be processed is not smaller than 1mm higher than the height of the step is ensured;
a positioning shaft fixing device is arranged below the positioning shaft.
Further, at least two first through holes are arranged on the longitudinal center line of the claw block matrix at intervals, counter bores are formed in the upper ends of the first through holes and used for fixing the claw block matrix on the chuck, second through holes are formed in the front ends of the longitudinal center line of the claw block matrix, counter bores are formed in the upper ends of the second through holes, counter bores are formed in the lower ends of the second through holes, the upper end counter bores are matched with the positioning shafts, and the lower end counter bores are matched with the positioning shaft fixing devices.
Further, a third through hole is formed in the center line of the movable claw, far away from the inner measuring surface, of the arc, the positioning shaft penetrates into the third through hole and the upper end counter bore of the second through hole from top to bottom and is in clearance fit, and the movable claw can automatically test and rotate around the positioning shaft according to the outer diameter to be clamped of a product to be processed after assembly is completed.
Further, the positioning shaft is of a T-shaped structure with a boss at the upper end, and a locking mechanism is arranged at the lower end.
Further, the locking mechanism is a blind hole, and an internal thread is arranged in the blind hole.
Further, in order to ensure that the movable claw is not completely fixed after the positioning shaft fixing device and the positioning shaft are fixed in assembly, the shaft length of the lower end of the boss of the positioning shaft is 0.01-0.05mm longer than the total length of counter bores at the upper ends of the third through hole and the second through hole.
Further, the positioning shaft fixing device is provided with external threads, penetrates into the second through hole of the claw block matrix from bottom to top, and is connected with the internal threads in the blind hole of the positioning shaft in a matched mode.
Further, the positioning shaft fixing device is an inner hexagon screw.
Further, the movable claw is fan-shaped.
The self-rotating positioning claw block tool for the numerical control vehicle has the following beneficial effects:
When the tool is used, the movable claw can automatically rotate around the positioning shaft according to the outer circle condition of a product to be processed, so that the influence of outer circle deformation of a workpiece on the clamping force can be reduced, the technical parameters of the part are ensured, and the processing quality of the product is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of a self-rotating positioning claw block tooling for a numerical control vehicle provided in the embodiment;
FIG. 2 is a cross-sectional view of FIG. 1;
FIG. 3 is a schematic view of the claw block matrix structure;
FIG. 4 is a cross-sectional view of FIG. 3;
FIG. 5 is a schematic view of a moveable jaw structure;
FIG. 6 is a left side view of FIG. 5;
FIG. 7 is a schematic view of a positioning shaft structure;
fig. 8 is a schematic illustration of the loading of a product to be processed.
Reference numerals: the device comprises a 1-claw block matrix, 11-first through holes, 12-second through holes, 121-upper end counter bores, 122-lower end counter bores, 2-movable claws, 21-step inner sides, 22-third through holes, 3-positioning shafts, 31-bosses, 32-locking mechanisms and 4-positioning shaft fixing devices.
Detailed Description
In order to make the objects, technical solutions and advantages of the present utility model more apparent, embodiments of the present utility model will be described in further detail with reference to fig. 1 to 8.
The utility model provides a self-rotating positioning claw block tool for a numerical control vehicle, which is a three-claw chuck, wherein each claw comprises a claw block base body 1, a movable claw 2 and a positioning shaft 3, the claw block base body 1 is detachably arranged on the chuck, the movable claw 2 is detachably arranged above the front end of the claw block base body 1 through the positioning shaft 3, the inner measuring surface of the movable claw 2 is an arc and is provided with a step, and the inner side surface 21 of the step is a clamping surface;
The movable claw 2 is fan-shaped and can automatically test and rotate around the positioning shaft 3 according to the size of the outer diameter to be clamped of a product to be processed, the circular arc diameter of the inner side surface 21 of the step is matched with the size of the outer diameter to be clamped of the product to be processed and smaller than the outer diameter, the height of the step is matched with the total height of the product to be processed, and the distance that the end surface to be processed of the product to be processed is not smaller than 1mm higher than the height of the step is ensured;
A positioning shaft fixing device 4 is arranged below the positioning shaft 3.
The claw block base body 1 is provided with at least two first through holes 11 at intervals on the longitudinal center line, counter bores are formed in the upper ends of the first through holes 11 and used for fixing the claw block base body 1 on a chuck, second through holes 12 are formed in the front end of the longitudinal center line of the claw block base body 1, upper counter bores 121 and lower counter bores 122 are formed in the upper end and the lower end of the second through holes 12 respectively, the upper counter bores 121 are matched with the positioning shaft 3, and the lower counter bores 122 are matched with the positioning shaft fixing device 4.
The center line of the movable claw 2 is provided with a third through hole 22 far away from the inner measuring surface arc, the positioning shaft 3 penetrates into the third through hole 22 and the upper end counter bore 121 of the second through hole 12 from top to bottom and is in clearance fit, and the movable claw 2 can automatically test and rotate around the positioning shaft 3 according to the outer diameter to be clamped of a product to be processed after assembly is completed.
The positioning shaft 3 is of a T-shaped structure with a boss 31 at the upper end and a locking mechanism 32 at the lower end. The locking mechanism 32 is a blind hole, and an internal thread is arranged in the blind hole.
In order to ensure that the movable claw 2 is not completely fixed after the positioning shaft fixing device 4 and the positioning shaft 3 are fixed in assembly, the shaft length of the lower end of the boss 31 of the positioning shaft 3 is 0.01-0.05mm longer than the total length of the third through hole 22 and the counter bore 121 at the upper end of the second through hole 12.
The positioning shaft fixing device 4 is provided with external threads, penetrates into the second through hole 12 of the claw block base body 1 from bottom to top, and is connected with the internal threads in the blind hole of the positioning shaft 3 in a matched mode.
The positioning shaft fixing device 4 may be a socket head cap screw.
The bottom of the claw block matrix 1 is provided with teeth which are matched with the profiling on the chuck, the chuck is rotated in the forward and reverse directions to drive the claw block matrix 1 to move towards the center or the reverse direction, the clamping or the loosening of a product to be processed is realized, and when the clamping is performed, the movable claw 2 can automatically perform trial rotation around the positioning shaft 3 according to the size and the shape of the outer diameter of the product to be processed to be clamped.
In this embodiment, a ring gear is taken as an example, and key elements are as follows:
(1) The flatness of the outer end surfaces at the two sides of the ring gear is 0.005;
(2) D61.5 pore size tolerance 0.013;
(3) D61.5 the perpendicularity of the axis of the hole and the reference surface A is 0.01
In order to reduce clamping deformation and ensure the flatness of two sides of a part and the aperture and roundness of D61.5, the tool is used for clamping the outer circle part of the ring gear cylinder, and the end face of the step is positioned for processing.
The foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and scope of the utility model are intended to be included within the scope of the utility model.
Claims (9)
1. The utility model provides a self-rotating positioning claw block tool for a numerical control vehicle, the tool is a three-jaw chuck, each claw comprises a claw block matrix (1), a movable claw (2) and a positioning shaft (3), the claw block matrix (1) is detachably arranged on the chuck, the movable claw (2) is detachably arranged above the front end of the claw block matrix (1) through the positioning shaft (3), an inner measuring surface of the movable claw (2) is an arc and is provided with a step, and an inner side surface (21) of the step is a clamping surface;
The automatic clamping device is characterized in that the movable claw (2) can automatically and trial-rotate around the positioning shaft (3) according to the size of the outer diameter to be clamped of a product to be processed, the circular arc diameter of the inner side surface (21) of the step is matched with the size of the outer diameter to be clamped of the product to be processed and smaller than the outer diameter, the height of the step is matched with the total height of the product to be processed, and the distance that the end face to be processed of the product to be processed is higher than the height of the step by not smaller than 1mm is ensured;
a positioning shaft fixing device (4) is arranged below the positioning shaft (3).
2. The self-rotating positioning claw block tool for the numerical control vehicle according to claim 1, wherein at least two first through holes (11) are arranged on the longitudinal central line of the claw block base body (1) at intervals, counter bores are formed in the upper ends of the first through holes (11) and used for fixing the claw block base body (1) on a chuck, second through holes (12) are formed in the front ends of the longitudinal central line of the claw block base body (1), an upper counter bore (121) and a lower counter bore (122) are formed in the upper end and the lower end of the second through holes (12) respectively, the upper counter bores (121) are matched with a positioning shaft (3), and the lower counter bores (122) are matched with a positioning shaft fixing device (4).
3. The self-rotating positioning claw block tool for the numerical control vehicle according to claim 2 is characterized in that a third through hole (22) is formed in the center line of the movable claw (2) far away from the arc of the inner measuring surface, the positioning shaft (3) penetrates into upper end counter bores (121) of the third through hole (22) and the second through hole (12) from top to bottom, and the upper end counter bores are in clearance fit, so that the movable claw (2) can automatically test and rotate around the positioning shaft (3) according to the outer diameter to be clamped of a product to be machined after the assembly is completed.
4. A self-rotating positioning claw block tool for a numerical control vehicle according to claim 3, wherein the positioning shaft (3) is of a T-shaped structure with a boss (31) at the upper end and a locking mechanism (32) at the lower end.
5. The numerical control automatic rotating positioning claw block tool according to claim 4, wherein the locking mechanism (32) is a blind hole, and an internal thread is arranged in the blind hole.
6. The fixture for the self-rotating positioning claw block for the numerical control vehicle according to claim 4, wherein in order to ensure that the movable claw (2) is not completely fixed after the positioning shaft fixing device (4) and the positioning shaft (3) are fixed in the assembly, the shaft length of the lower end of the boss (31) of the positioning shaft (3) is 0.01-0.05mm longer than the total length of the upper end counter bores (121) of the third through hole and the second through hole (12).
7. The self-rotating positioning claw block tool for the numerical control vehicle according to claim 6, wherein the positioning shaft fixing device (4) is provided with external threads, penetrates into the second through hole (12) of the claw block base body (1) from bottom to top, and is connected with internal threads in the blind hole of the positioning shaft (3) in a matching manner.
8. The self-rotating positioning claw block tool for the numerical control vehicle according to claim 7, wherein the positioning shaft fixing device (4) is an inner hexagon screw.
9. The self-rotating positioning claw block tool for a numerical control vehicle according to any one of claims 1-8, wherein the movable claw (2) is in a fan shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323185667.7U CN221231611U (en) | 2023-11-24 | 2023-11-24 | Self-rotating positioning claw block tool for numerical control vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323185667.7U CN221231611U (en) | 2023-11-24 | 2023-11-24 | Self-rotating positioning claw block tool for numerical control vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221231611U true CN221231611U (en) | 2024-06-28 |
Family
ID=91614206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323185667.7U Active CN221231611U (en) | 2023-11-24 | 2023-11-24 | Self-rotating positioning claw block tool for numerical control vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221231611U (en) |
-
2023
- 2023-11-24 CN CN202323185667.7U patent/CN221231611U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108480923B (en) | Method for precisely machining large thin-wall revolving body part | |
| CN112388362B (en) | Fixture combination for machining rotary pipe joint with ball by numerical control lathe and machining method | |
| CN101693341B (en) | Special clamp for grinding internal thread of ball screw nut | |
| CN207087410U (en) | Fixture for lathe in machining irregular contour part | |
| CN221231611U (en) | Self-rotating positioning claw block tool for numerical control vehicle | |
| CN216325629U (en) | Self-centering universal tool for polar coordinate gear chamfering machine | |
| CN216066145U (en) | Turnover welding tool fixture | |
| CN113977349A (en) | Simple dividing head | |
| CN213591757U (en) | Eccentric plane fixture of outboard engine crank | |
| CN211614941U (en) | Machining clamp device for vehicle differential case | |
| CN211758559U (en) | Quick-change primary and secondary fixture | |
| CN211192971U (en) | Clamp for lathe | |
| CN211219681U (en) | Numerical control machining center frock clamp | |
| CN201446415U (en) | Internal thread special gripper of grinding ball screw rod nut | |
| CN214392402U (en) | Chuck for lathe | |
| CN221390125U (en) | Device for ensuring length precision of revolving body curved surface type part for numerical control lathe | |
| CN111451534A (en) | Steering positioning chuck | |
| CN220006257U (en) | By tooth milling mistake proofing frock | |
| CN216542260U (en) | Simple dividing head | |
| CN221290862U (en) | Tool for machining grinding machine die | |
| CN218341550U (en) | Nut processing and positioning device | |
| CN214322573U (en) | Positioning assembly for clamp | |
| CN221209894U (en) | Internal groove turning tool for clamping groove of eccentric hole | |
| CN212228368U (en) | Inspection tool with positioning function | |
| CN214602331U (en) | Reducing internal spline gear shaping clamp |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |