CN221047907U - Accurate positioning device for CNC machine tool - Google Patents
Accurate positioning device for CNC machine tool Download PDFInfo
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- CN221047907U CN221047907U CN202322587186.2U CN202322587186U CN221047907U CN 221047907 U CN221047907 U CN 221047907U CN 202322587186 U CN202322587186 U CN 202322587186U CN 221047907 U CN221047907 U CN 221047907U
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- 230000007246 mechanism Effects 0.000 claims abstract description 9
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 5
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 5
- 241001330002 Bambuseae Species 0.000 claims description 5
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 5
- 239000011425 bamboo Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 6
- 230000006872 improvement Effects 0.000 abstract description 2
- 238000010030 laminating Methods 0.000 abstract description 2
- 230000001788 irregular Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Abstract
The utility model relates to an accurate positioning device for a CNC machine tool, which comprises a bottom plate and two moving blocks, wherein the moving blocks are connected to the upper surface of the bottom plate in a sliding manner, a positioning mechanism is arranged on each moving block and comprises a telescopic assembly and an adapting assembly, and the telescopic assembly comprises at least two mounting holes arranged in the moving blocks. This CNC is accurate positioner for lathe, through pivoted threaded rod, can make a plurality of butt pieces and the area contact that the work piece did not contact with the movable block, thereby make the work piece location more stable and accurate, and can increase the area of contact of movable block and work piece under the effect of a plurality of butt pieces, with the improvement positioning effect, make the location more accurate, through pivoted butt piece, can make the butt piece can with work piece surface furthest laminating, thereby further improve the area of contact of butt piece and work piece, and after the butt piece butt is accomplished, the torsional spring can make it reset, so that the butt piece carries out follow-up location.
Description
Technical Field
The utility model relates to the technical field of CNC (computer numerical control) machine tools, in particular to an accurate positioning device for a CNC machine tool.
Background
The numerically controlled lathe is one of widely used numerically controlled machine tools, and is mainly used for cutting machining of inner and outer cylindrical surfaces of shaft parts or disc parts, inner and outer conical surfaces of any cone angle, complex rotation inner and outer curved surfaces, cylindrical threads, conical threads and the like, grooving, drilling, reaming, boring and the like.
For example, chinese patent publication No. CN217860024U discloses a positioning mechanism for CNC numerical control machine tool, comprising a base and a fixing device for positioning a workpiece, wherein the fixing device comprises a movable cavity arranged in the base, two sliding grooves arranged on the base, a motor arranged in the movable cavity, a rotating shaft arranged on the motor, a gear arranged on the rotating shaft, two guide rails arranged in the movable cavity, racks respectively arranged on the two guide rails and a clamping part for horizontally fixing the workpiece, the gears are meshed with the racks, and the racks are arranged opposite to the sliding grooves.
The positioning mechanism for the CNC numerical control machine tool can improve the positioning effect when in use, but has some defects when in use, for example, when an irregular workpiece is positioned, the workpiece is positioned by the moving block, but the contact surface of the moving block and the workpiece is too small to provide enough support and stability, so that the workpiece is easy to move or deviate from a preset position in processing, the positioning is inaccurate, and the processing quality of the workpiece is further affected.
Disclosure of utility model
Aiming at the defects of the prior art, the utility model provides the accurate positioning device for the CNC machine tool, which has the advantages of accurate positioning and the like, and solves the problem that the contact area of a moving block and a workpiece is too small and unstable.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the accurate positioning device for the CNC machine tool comprises a bottom plate and two moving blocks, wherein the moving blocks are connected to the upper surface of the bottom plate in a sliding manner, a positioning mechanism is arranged on each moving block, and the positioning mechanism comprises a telescopic assembly and an adaptive assembly;
The telescopic assembly comprises mounting holes which are formed in the moving block and are not less than two, a mounting cylinder is fixed in the mounting holes, a first moving cylinder is connected to the mounting cylinder in a sliding mode, a first baffle is fixed to the outer side of the first moving cylinder, the first baffle is connected to the mounting cylinder in a sliding mode, one end of the first moving cylinder, far away from the mounting cylinder, penetrates through and extends to the outer side of the mounting cylinder, a second moving cylinder is connected to the inner side of the first moving cylinder in a sliding mode, a second baffle is fixed to the outer side of the second moving cylinder, the second baffle is connected to the inner side of the first moving cylinder in a sliding mode, one end of the second moving cylinder, far away from the mounting cylinder, penetrates through and extends to the outer side of the mounting cylinder, and a threaded rod is connected to the inner side of the mounting cylinder in a threaded mode.
Further, the adaptation subassembly is including fixing two backup pads of installation section of thick bamboo one end is kept away from at the second and removes a section of thick bamboo, upper and lower two rotate between the backup pad and be connected with the connecting block, one side that the movable block was kept away from to the connecting block is fixed with the butt piece, the top surface and the bottom surface of connecting block all are fixed with the connecting rod, and the one end that the back of the body of upper and lower two connecting rods was put forth respectively runs through and extends to the outside of upper and lower backup pad, the backup pad rotates the outside of connecting at the connecting rod.
Furthermore, at least two mounting holes are distributed on the moving block in a linear equidistant manner, and the first moving cylinder moves linearly left and right in the mounting cylinder.
Further, screw holes are formed in the left side and the right side of the mounting cylinder, and the screw rods are connected with the screw holes in a threaded mode.
Further, grooves are formed between the opposite sides of the upper supporting plate and the lower supporting plate, torsion springs are fixed on the top surface and the bottom surface of the connecting block, one opposite sides of the upper torsion spring and the lower torsion spring are respectively fixed on opposite side walls of the grooves on the upper side and the lower side, and the torsion springs are movably sleeved on the outer sides of the connecting rod.
Further, the cross sections of the first baffle and the second baffle are circular.
Compared with the prior art, the technical scheme of the application has the following beneficial effects:
1. This CNC is accurate positioner for lathe through pivoted threaded rod, enables a plurality of butt pieces and the regional contact of work piece non-with the movable block to make the work piece location more stable and accurate, and can increase the area of contact of movable block and work piece under the effect of a plurality of butt pieces, with the improvement location effect, make the location more accurate.
2. This CNC is accurate positioner for lathe through pivoted butt piece, can make butt piece and work piece surface furthest laminating to further improve the area of contact of butt piece and work piece, and after the butt piece butt is accomplished, the torsional spring can make it reset, so that the butt piece carries out follow-up location.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of a telescoping assembly of the present utility model;
fig. 3 is a schematic view of an adapting assembly according to the present utility model.
In the figure: 1. a bottom plate; 2. a moving block; 3. a telescoping assembly; 301. a mounting hole; 302. a second moving cylinder; 303. a first moving cylinder; 304. a mounting cylinder; 305. a threaded rod; 306. a first baffle; 307. a second baffle; 4. an adapter assembly; 401. an abutment block; 402. a connecting block; 403. a connecting rod; 404. a support plate; 405. a torsion spring; 406. a groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1, an accurate positioning device for a CNC machine in this embodiment includes a base plate 1 and two moving blocks 2, the moving blocks 2 are slidably connected to an upper surface of the base plate 1, and a positioning mechanism is disposed on the moving blocks 2, and the positioning mechanism includes a telescopic assembly 3 and an adapting assembly 4.
Referring to fig. 2-3, the telescopic assembly 3 in this embodiment includes at least two mounting holes 301 formed in the moving block 2, a mounting cylinder 304 is fixed in the mounting holes 301, a first moving cylinder 303 is slidably connected in the mounting cylinder 304, a first baffle 306 is fixed on the outer side of the first moving cylinder 303, when the first moving cylinder 303 moves, the moving distance of the first baffle 306 can be limited, the outer diameter of the first baffle 306 is adapted to the inner diameter of the mounting cylinder 304, the first baffle 306 is slidably connected in the mounting cylinder 304, one end of the first moving cylinder 303 away from the mounting cylinder 304 penetrates and extends to the outer side of the mounting cylinder 304, a second moving cylinder 302 is slidably connected in the first moving cylinder 303, the outer diameter of the second moving cylinder 302 is smaller than the inner diameter of the first moving cylinder 303, and the outer diameter of the first moving cylinder 303 is smaller than the inner diameter of the mounting cylinder 304.
The second baffle 307 is fixed on the outer side of the second moving cylinder 302, when the second baffle 307 of the second moving cylinder 302 moves, the second baffle 307 can limit the moving distance of the second baffle 307, the outer diameter of the second baffle 307 is matched with the inner diameter of the first moving cylinder 303, the second baffle 307 is slidably connected inside the first moving cylinder 303, one end, away from the mounting cylinder 304, of the second moving cylinder 302 penetrates through and extends to the outer side of the first moving cylinder 303, one side wall, close to the mounting cylinder 304, of the second moving cylinder 302 is rotatably connected with a threaded rod 305 through a bearing, one end, away from the second moving cylinder 302, of the threaded rod 305 is fixedly provided with a handle, and the threaded rod 305 is rotated through the handle.
One end of the threaded rod 305 far away from the second moving cylinder 302 penetrates through and extends to the outer side of the mounting cylinder 304, the threaded rod 305 is in threaded connection with the inner portion of the mounting cylinder 304, the first moving cylinder 303 can be driven to move out of the mounting cylinder 304 along with the movement of the threaded rod 305, the second moving cylinder 302 moves out of the first moving cylinder 303, and the abutting block 401 can also move along with the movement of the second moving cylinder 302.
Not less than two mounting holes 301 are distributed on the movable block 2 at equal intervals in a linear mode, the first movable barrel 303 moves linearly left and right in the mounting barrel 304, threaded holes are formed in the opposite sides of the mounting barrels 304 on the left and right sides, the threaded rods 305 are matched with the threaded holes after rotating, the threaded rods 305 can be moved out of the mounting holes 301, the threaded rods 305 are connected inside the threaded holes in a threaded mode, and the cross sections of the first baffle 306 and the second baffle 307 are circular.
The adaptation subassembly 4 is including fixing two backup pads 404 that install a section of thick bamboo 304 one end was kept away from at the second movable tube 302, two backup pads 404 cooperate connecting rod 403 can carry out spacingly to connecting block 402, rotate between two upper and lower backup pads 404 and be connected with connecting block 402, after butt piece 401 and work piece contact, first movable tube 303 continues to remove, butt piece 401 can drive connecting block 402 and rotate between two upper and lower backup pads 404, one side that movable block 2 was kept away from to connecting block 402 is fixed with butt piece 401, butt piece 401 is located mounting hole 301, can make things convenient for movable block 2 to preliminary location to the work piece, the top surface and the bottom surface of connecting block 402 all are fixed with connecting rod 403, the outside of upper and lower two connecting rod 403's one end that is opposite to each other runs through respectively and extends to upper and lower backup pad 404, the outside at connecting rod 403 is connected in the connecting rod 404's outside in the rotation.
Grooves 406 are formed in the opposite sides of the upper supporting plate 404 and the lower supporting plate 404, torsion springs 405 are fixed on the top surface and the bottom surface of the connecting block 402, the torsion springs 405 deform along with the rotation of the connecting block 402, meanwhile, after the positioning work is finished, the abutting blocks 401 are separated from the workpiece, the torsion springs 405 can drive the abutting blocks 401 to reset, one sides of the upper and lower torsion springs 405 opposite to each other are respectively fixed on opposite side walls of the grooves 406 in the upper and lower sides, and the torsion springs 405 are movably sleeved on the outer sides of the connecting rods 403.
By the rotating threaded rod 305, a plurality of abutting blocks 401 can be contacted with the area of the workpiece which is not contacted with the moving block 2, so that the workpiece is positioned more stably and accurately, and the abutting blocks 401 can be attached to the surface of the workpiece to the maximum extent by rotating the abutting blocks 401, so that the contact area of the abutting blocks 401 and the workpiece is further improved.
The threaded rod 305, the abutting block 401, the connecting block 402 and the torsion spring 405 are matched, the contact area between the moving block 2 and a workpiece can be increased, stable positioning and clamping force are provided, so that the workpiece is more stable and accurate in the positioning process, the problems of unstable clamping, low machining precision, safety risk and the like possibly caused by insufficient contact area are solved, and the workpiece positioning effect and quality are improved.
The working principle of the embodiment is as follows:
(1) When the workpiece is required to be positioned, the workpiece is placed on the bottom plate 1, the driving assembly enables the moving block 2 to initially position the workpiece, when the irregular workpiece is fixed, the threaded rod 305 can be rotated through the handle, the threaded rod 305 can be moved out of the mounting hole 301 after being rotated, the first moving cylinder 303 can be driven to be moved out of the mounting cylinder 304 along with the movement of the threaded rod 305, the second moving cylinder 302 is moved out of the first moving cylinder 303, and the abutting block 401 can be moved along with the movement of the second moving cylinder 302.
(2) When the movable block 2 positions an irregular workpiece, the contact area of the movable block 2 and the irregular workpiece is smaller, at this time, the threaded rod 305 drives the abutting block 401 to contact the workpiece, so that the contact area can be increased, after the abutting block 401 contacts the workpiece, the first movable cylinder 303 continues to move, the abutting block 401 drives the connecting block 402 to rotate between the upper supporting plate 404 and the lower supporting plate 404, after the connecting block 402 rotates, the torsion spring 405 also deforms along with deformation, and after the positioning work is finished, the abutting block 401 is separated from the workpiece, the torsion spring 405 can also drive the abutting block 401 to reset, the contact area of the abutting block 401 and the workpiece can be improved under the action of the rotating abutting block 401, and the area, which is not contacted with the movable block 2, of the workpiece can be abutted under the action of the plurality of abutting blocks 401, so that the workpiece is more stable and accurate in the positioning process.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. Accurate positioning device for CNC lathe, including bottom plate (1) and two movable blocks (2), its characterized in that: the movable block (2) is connected to the upper surface of the bottom plate (1) in a sliding manner, a positioning mechanism is arranged on the movable block (2), and the positioning mechanism comprises a telescopic component (3) and an adapting component (4);
The telescopic component (3) comprises mounting holes (301) which are formed in the moving block (2) and are not less than two, a mounting cylinder (304) is fixedly arranged in the mounting holes (301), a first moving cylinder (303) is connected to the inside of the mounting cylinder (304) in a sliding mode, a first baffle (306) is fixedly arranged on the outer side of the first moving cylinder (303), the first baffle (306) is connected to the inside of the mounting cylinder (304) in a sliding mode, one end of the first moving cylinder (303) far away from the mounting cylinder (304) penetrates through and extends to the outer side of the mounting cylinder (304), a second moving cylinder (302) is connected to the inside of the first moving cylinder (302) in a sliding mode, a second baffle (307) is fixedly arranged on the outer side of the second moving cylinder (302), one end of the second moving cylinder (302) far away from the mounting cylinder (304) penetrates through and extends to the outer side of the first moving cylinder (303), one side of the second moving cylinder (302) near the mounting cylinder (304) penetrates through a bearing (305), and extends to the threaded rod (305) far away from the threaded rod (305) in the inner side of the threaded rod (305).
2. The precise positioning device for a CNC machine according to claim 1, wherein: the adapter subassembly (4) is including fixing two backup pads (404) of installation section of thick bamboo (304) one end are kept away from in second removal section of thick bamboo (302), upper and lower two rotate between backup pad (404) and be connected with connecting block (402), one side that movable block (2) was kept away from to connecting block (402) is fixed with butt piece (401), top surface and the bottom surface of connecting block (402) all are fixed with connecting rod (403), and the outside of upper and lower backup pad (404) is run through respectively and extends to the one end that is on the back of the body of two connecting rods (403), backup pad (404) rotate the outside of connecting rod (403) and connect.
3. The precise positioning device for a CNC machine according to claim 1, wherein: at least two mounting holes (301) are distributed on the moving block (2) in a linear equidistant mode, and the first moving cylinder (303) moves linearly left and right in the mounting cylinder (304).
4. The precise positioning device for a CNC machine according to claim 1, wherein: threaded holes are formed in the opposite sides of the mounting cylinders (304) on the left side and the right side, and the threaded rod (305) is in threaded connection with the inside of the threaded holes.
5. The precise positioning device for a CNC machine according to claim 2, wherein: grooves (406) are formed in the positions, between the opposite sides of the upper supporting plate (404) and the lower supporting plate (404), of the connecting block (402), torsion springs (405) are fixed on the top surface and the bottom surface of the connecting block (402), one sides, opposite to the upper side and the lower side, of the torsion springs (405) are respectively fixed on one side wall, opposite to the grooves (406), of the upper side and the lower side, of the torsion springs (405) are movably sleeved on the outer side of the connecting rod (403).
6. The precise positioning device for a CNC machine according to claim 1, wherein: the cross sections of the first baffle (306) and the second baffle (307) are circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322587186.2U CN221047907U (en) | 2023-09-22 | 2023-09-22 | Accurate positioning device for CNC machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322587186.2U CN221047907U (en) | 2023-09-22 | 2023-09-22 | Accurate positioning device for CNC machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221047907U true CN221047907U (en) | 2024-05-31 |
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ID=91203766
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322587186.2U Active CN221047907U (en) | 2023-09-22 | 2023-09-22 | Accurate positioning device for CNC machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221047907U (en) |
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2023
- 2023-09-22 CN CN202322587186.2U patent/CN221047907U/en active Active
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