CN221389936U - Centering clamping device for numerical control machine tool - Google Patents
Centering clamping device for numerical control machine tool Download PDFInfo
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- CN221389936U CN221389936U CN202323375355.2U CN202323375355U CN221389936U CN 221389936 U CN221389936 U CN 221389936U CN 202323375355 U CN202323375355 U CN 202323375355U CN 221389936 U CN221389936 U CN 221389936U
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- 210000000078 claw Anatomy 0.000 claims description 58
- 238000003754 machining Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 6
- 230000001360 synchronised effect Effects 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000002699 waste material Substances 0.000 description 10
- 230000006978 adaptation Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model discloses a centering clamping device for a numerical control machine tool, and mainly relates to the field of machine tool machining equipment. The positioning device is arranged in the center of the supporting device, the positioning device plays a role in centering in the numerical control machine tool, and the driving device controls the movement of the positioning device; the positioning device is a self-centering chuck, a plurality of clamping jaws are arranged on the self-centering chuck, one ends of the clamping jaws are connected with the self-centering chuck, and the clamping jaws synchronously move. The utility model has the beneficial effects that: the device is through self-centering chuck for a plurality of jack catchs carry out synchronous motion, thereby can be convenient find the machining center of work piece, make things convenient for the work piece to process. The device is convenient for centering operation of workpieces with different sizes and reduces the cost, so that the small-sized chuck can meet the centering operation of large workpieces by adopting the small-sized chuck and improving the clamping jaws of the small-sized chuck.
Description
Technical Field
The utility model relates to the field of machine tool processing equipment, in particular to a centering clamping device for a numerical control machine tool.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
Centering of a workpiece in the machining process of a numerical control machine tool is an important guarantee for accurate machining of the workpiece. Therefore, the original point of machine tool machining and the center point of the workpiece need to be calibrated before machining of the machine tool, so that the workpiece can be machined normally. For some large-scale machine tools, if the centering operation of the workpiece is controlled manually, the operation is complicated, and the problem that how to conveniently find the machining center of the workpiece and facilitate the machining of the workpiece is to be solved.
For a numerical control machine tool, because the workpieces processed by one machine tool have differences, namely the differences of the sizes, the weights and the like of the workpieces, when the differences of the sizes of the workpieces are too large, if the centering chuck is adopted for centering the workpieces at the moment, the required chuck is large, so that more expense is required, and the problem to be solved is that how to reduce the volume of the chuck and well position the workpieces. When the sizes of the workpieces are different, the claws on the centering chuck need to move some unnecessary distances for centering the small workpieces, so that time is wasted, the workpieces can be conveniently positioned, and the time in the claw stroke is reduced to be a problem to be solved.
In summary, how to find the machining center of the workpiece conveniently and to process the workpiece to be solved, how to reduce the size of the chuck required for a large workpiece and to normally use and position the chuck to be solved. In the machining process, small-sized workpieces can be arranged, so that the workpieces can be positioned quickly, and the time spent in the jaw stroke is reduced to be a problem to be solved.
Disclosure of utility model
The utility model aims to provide a centering clamping device for a numerical control machine tool, which enables a plurality of clamping jaws to synchronously move through a self-centering chuck, so that a machining center of a workpiece can be conveniently found, and the workpiece can be conveniently machined. The device is convenient for centering operation of workpieces with different sizes and reduces the cost, so that the small-sized chuck can meet the centering operation of large workpieces by adopting the small-sized chuck and improving the clamping jaws of the small-sized chuck. The device is used for centering the workpiece, wherein the diameter difference of the workpiece exceeds the diameter of the chuck, and the clamping jaw seat is provided with a plurality of limiting holes. And the driving device adopts a hydraulic motor during centering, so that the damage of the driving device caused by load is reduced.
The utility model aims to achieve the aim, and the aim is achieved by the following technical scheme:
The centering clamping device for the numerical control machine tool comprises a supporting device, a positioning device and a driving device, wherein the positioning device is arranged in the center of the supporting device, the supporting device is used for supporting a machined workpiece on the numerical control machine tool, the center of the supporting device is hollow, the positioning device is arranged, and the supporting device is used for enabling the positioning device to better control centering of the workpiece, so that the supporting device is divided into a plurality of pieces, and the positioning device is convenient for controlling centering operation of the workpiece. Be equipped with a plurality of recesses on the strutting arrangement, and the side that the recess runs through strutting arrangement, when the waste material is clear up all around through the recess, rethread auger etc. device is concentrated clearance to the waste material, collects etc. effect to the waste material. The positioning device plays a role in centering in the numerical control machine tool, and the driving device controls the movement of the positioning device; the centering device is a self-centering chuck, a plurality of clamping jaws are arranged on the self-centering chuck, one ends of the clamping jaws are connected with the self-centering chuck, and the clamping jaws synchronously move. The self-centering chuck is provided with a plurality of clamping jaws, wherein the clamping jaws can be three-jaw, four-jaw or the like, and the four-jaw chuck is selected for centering different workpieces. The four-jaw chuck can be applied to processing workpieces with special requirements, such as eccentric workpieces, so that the workpieces can be better held. And the three-jaw chuck cannot be well held. The self-centering chuck is provided with a driving hole, the driving hole is connected with a driving device, and the driving device comprises a hydraulic motor. The driving device of the device adopts a hydraulic motor to control the movement of the clamping jaw. When the workpiece is centered, the driving device is damaged when the driving device continues to move, so that the driving device adopts a hydraulic motor in order to reduce the damage of the driving device, a load is generated when the hydraulic motor continues to rotate, and hydraulic oil flows out through the overflow valve when the load is overlarge, so that the hydraulic motor is protected.
The jack catch includes spacing claw head, jack catch seat, and the jack catch seat runs through strutting arrangement, and two long sides are close to mutually with strutting arrangement, and the bottom of jack catch seat is equipped with the slide rail, and the jack catch seat slides on the slide rail, and the top of jack catch seat is equipped with spacing claw head, can dismantle between spacing claw head and the jack catch seat and be connected. The top of the limiting claw head is arranged in a step-shaped manner. The limiting claw head is contacted with the outer side edge of the workpiece and pushes the workpiece to move, and the positions of the limiting claw heads are different according to the size of the workpiece, however, the moving distances of the clamping claws on the self-centering chuck are the same, so that the limiting claw heads are detachably connected with the clamping claw seats, and the limiting claw heads can select proper positions to perform centering operation according to the size of the workpiece. The claw seat runs through strutting arrangement to two long sides of claw seat are close to with strutting arrangement mutually, and the top surface of claw seat is less than strutting arrangement's top surface, prevents that the claw seat from influencing the removal of work piece when moving. The jaw seat is in order to be able to move, i.e. the jaw seat is in contact with the self-centering chuck, but because of the large length of the jaw seat, the bottom of the jaw seat is provided with a sliding rail, which provides support for the jaw seat.
The jaw seat is provided with a plurality of limiting holes, the limiting jaw head is provided with a through hole, and the through hole on the limiting jaw head is detachably connected with the limiting holes. Be equipped with a plurality of spacing holes on the jack catch seat, and the effect of spacing hole is in order to connect spacing jaw head for spacing jaw head can be better provide centering clamp to the work piece. The top of spacing claw head is the notch that is equipped with the lug looks adaptation on the every plane of notch cuttype to all be equipped with the through-hole on the notch cuttype, through-hole and spacing hole looks adaptation make spacing claw head can be connected with the jack catch seat, and in order to fix spacing claw head better, be equipped with a plurality of lugs on the jack catch seat, and the lug sets up in the middle of two adjacent spacing holes, and spacing claw head is in order to fix it better, consequently be equipped with on the spacing claw head with the notch of lug looks adaptation, make spacing claw head can be further supported, reduce the force that the bolt bore when fixing through bolt etc. between spacing hole and the through-hole.
Compared with the prior art, the utility model has the beneficial effects that:
The device is through self-centering chuck for a plurality of jack catchs carry out synchronous motion, thereby can be convenient find the machining center of work piece, make things convenient for the work piece to process. The device is convenient for centering operation of workpieces with different sizes and reduces the cost, so that the small-sized chuck can meet the centering operation of large workpieces by adopting the small-sized chuck and improving the clamping jaws of the small-sized chuck. The device is used for centering the workpiece, wherein the diameter difference of the workpiece exceeds the diameter of the chuck, and the clamping jaw seat is provided with a plurality of limiting holes. And the driving device adopts a hydraulic motor during centering, so that the damage of the driving device caused by load is reduced.
Drawings
FIG. 1 is a schematic view of a centering and clamping device for a numerically controlled machine tool according to the present utility model.
Fig. 2 is an internal schematic view of a centering and clamping device for a numerically controlled machine tool according to the present utility model.
Fig. 3 is an internal schematic view of a centering and clamping device for a numerically controlled machine tool according to the present utility model.
Fig. 4 is a schematic diagram of a centering and clamping device jaw for a numerically controlled machine tool according to the present utility model.
Fig. 5 is a schematic view of a limit jaw in the present utility model.
FIG. 6 is a schematic view of the position of the scrap conveyor apparatus of the present utility model.
The reference numbers shown in the drawings:
1. A support device; 2. a positioning device; 3. a driving device; 4. a claw; 5. a limit claw head; 6. a claw seat; 7. a slide rail; 8. a limiting hole; 9. a through hole; 10. a drive hole; 11. a groove; 12. a bump; 13. notch.
Detailed Description
The utility model will be further illustrated with reference to specific examples. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes and modifications may be made by those skilled in the art after reading the teachings of the utility model, and equivalents thereof fall within the scope of the utility model as defined by the claims.
The utility model relates to a centering clamping device for a numerical control machine tool, which comprises a main body structure, wherein the main body structure comprises a supporting device 1, a positioning device 2 and a driving device 3, the positioning device 2 is arranged at the central position of the supporting device 1, the supporting device 1 is used for supporting a processed workpiece on the numerical control machine tool, the central position of the supporting device 1 is hollow, the positioning device 2 is arranged at the central position of the supporting device 1, and the supporting device 1 is used for enabling the positioning device 2 to better control the centering of the workpiece, so that the supporting device 1 is divided into a plurality of pieces, and the positioning device 2 is convenient for controlling the centering operation of the workpiece. Be equipped with a plurality of recesses 11 on strutting arrangement 1, and recess 11 runs through strutting arrangement 1's side, the effect of these recesses 11 is in order to make the produced waste material of course of working carry the passageway, prevent that the workman from moving all around when clearing up through air gun etc. waste material in recess 11 then can remove all around of strutting arrangement 1 along recess 11 looks, and the condition that will fall into recess 11 equally when the waste material rethread air gun etc. at strutting arrangement 1 top clears up, make the waste material be convenient for clear up, and when the waste material clear up device such as auger is concentrated the waste material when getting all around, thereby collect etc. effect to the waste material.
The positioning device 2 is a self-centering chuck, so that the workpiece can be centered and held, and the distance between the clamping jaws 4 is required to be larger than the length of the workpiece in the holding process because the workpiece to be held by the device is different in size, so that a large-sized chuck is required to be selected or the holding distance of the chuck is required to be increased in use. While the selection of a large chuck can achieve the clamping of the workpiece, the large chuck is expensive for the whole machine tool, and increases the cost of the whole machine tool. Therefore, a small chuck is preferably used when in use, and the distance of the clamping jaw 4 can be the same and kept unchanged when in use although the clamping distance is increased when in use. In order to be able to adapt to workpieces of different sizes, the jaws 4 can be used normally. The clamping jaw 4 on the chuck is set to be an adjustable clamping jaw 4, and the position of the clamping jaw 4 is adjusted to be different when workpieces with different sizes are installed, so that the clamping jaw 4 can be used normally. And is specifically set as follows; the self-centering chuck is provided with a plurality of clamping jaws 4, and the clamping jaws 4 can be three-jaw, four-jaw or the like, and a four-jaw chuck is selected for centering different workpieces. The four-jaw chuck can be applied to processing workpieces with special requirements, such as eccentric workpieces, so that the workpieces can be better held. And the three-jaw chuck cannot be well held. The jaws 4 on the chuck are here set in a synchronized motion, for example a self-centering three-jaw chuck, which moves during tightening. The four-jaw chuck of the device adopts the same principle, and four jaws synchronously move. And chucks in which four jaws move synchronously are commercially available and therefore are not described in any great detail.
The claw 4 comprises a limiting claw head 5 and a claw seat 6, the limiting claw head 5 is contacted with the outer side edge of the workpiece and pushes the workpiece to move, the positions of the limiting claw head 5 are different according to the size of the workpiece, however, the moving distances of the claw 4 on the self-centering chuck are the same, so that the limiting claw head 5 and the claw seat 6 are detachably connected, and the limiting claw head 5 can select a proper position to perform centering operation according to the size of the workpiece. The claw seat 6 runs through the supporting device 1, and two long sides of the claw seat 6 are adjacent to the supporting device 1, and the top surface of the claw seat 6 is lower than the top surface of the supporting device 1, so that the claw seat 6 can prevent the workpiece from influencing the movement of the workpiece when the workpiece moves. The jaw seat 6 is capable of moving, i.e. the jaw seat 6 is in contact with the self-centering chuck, but the bottom of the jaw seat 6 is provided with a sliding rail 7 for supporting the jaw seat 6 due to the large length of the jaw seat 6. And be equipped with a plurality of spacing holes 8 on the jack catch seat 6, and the effect of spacing hole 8 is in order to connect spacing jaw head 5 for spacing jaw head 5 can be better provide centering clamp to the work piece. The top of spacing claw head 5 is the notch 13 that is equipped with through-hole 9 on every plane of notch cuttype to through-hole 9 and spacing hole 8 looks adaptation make spacing claw head 5 can be connected with claw seat 6, and in order to fix spacing claw head 5 better, be equipped with a plurality of lugs 12 on the claw seat 6, and lug 12 sets up in the middle of two adjacent spacing holes 8, and spacing claw head 5 is in order to fix it better, consequently be equipped with on the spacing claw head 5 with lug 12 looks adaptation notch 13, make spacing claw head 5 can be further supported, reduce the fixed force that the bolt bears through bolt etc. between spacing hole 8 and the through-hole 9.
The driving device 3 comprises a hydraulic motor, the driving device 3 is connected with a driving hole 10 on the self-centering chuck, and a wrench and the like are usually arranged at the driving hole 10 of the self-centering chuck to rotate, so that the movement of the chuck is controlled, but the operation of the wrench and the like cannot be used for centering with a workpiece on the device, and the workpiece has certain gravity and cannot be pushed by adopting manual work and the like. The drive means 3 of the device therefore employ a hydraulic motor for the movement of the control dog 4. After the workpiece is centered, the driving device 3 is damaged when moving continuously, so in order to reduce the damage of the driving device 3, the driving device 3 adopts a hydraulic motor, a load is generated when the hydraulic motor rotates continuously, and when the load is overlarge, hydraulic oil flows out through an overflow valve, so that the hydraulic motor is protected. If a motor is adopted, the workpiece can be damaged when the workpiece moves continuously after centering. And because the distance that the driving device 3 drives the clamping jaw 4 to move is different due to workpieces with different sizes and clamping jaws 4 with different mounting positions, the overflow valve is opened after the hydraulic motor generates load, and the stopping of the whole driving device 3 is controlled.
The use method is as follows:
the workpiece is placed at the center of the supporting device 1, and the workpiece needs to be centered by the positioning device 2 because of deviation caused by manual placement, at this time, the limiting jaw 5 is connected with the jaw seat 6, and the limiting jaw 5 is connected with the jaw seat 6 and is close to the outer side surface of the workpiece, so that unnecessary movement of the jaw 4 is reduced. Then, the driving device 3 is controlled to enable the driving device 3 to move, so that clamping operation of a workpiece is achieved, after the workpiece is clamped, the driving device 3 continues to move, load is generated, and after the load is overlarge, protection is needed through an overflow valve on the driving device 3, so that clamping stopping is achieved.
To sum up, this device is through from the centering chuck for a plurality of jack catchs 4 carry out synchronous motion, thereby can be convenient find the machining center of work piece, make things convenient for the work piece to process. The device is convenient for centering operation of workpieces with different sizes and reduces the cost, so that the small-sized chuck can meet the centering operation of large workpieces by adopting the small-sized chuck and improving the claw 4 of the small-sized chuck. The device is used for centering workpieces with the diameter difference exceeding the diameter of the chuck, and a plurality of limiting holes 8 are formed in the jaw seat 6, so that the centering operation can be quickly performed only by connecting the limiting jaw head 5 with the limiting holes 8 in different positions when the centering operation is needed. And the device adopts the hydraulic motor to drive the device 3 during centering, thereby reducing the damage of the drive device 3 caused by load.
Claims (5)
1. A centering clamping device for digit control machine tool, its characterized in that: the device comprises a supporting device (1), a positioning device (2) and a driving device (3), wherein the positioning device (2) is arranged in the center of the supporting device (1), the positioning device (2) plays a role in centering in a numerical control machine tool, and the driving device (3) controls the movement of the positioning device (2);
the positioning device (2) is a self-centering chuck, a plurality of clamping jaws (4) are arranged on the self-centering chuck, one ends of the clamping jaws (4) are connected with the self-centering chuck, and the clamping jaws (4) synchronously move.
2. Centering and clamping device for a numerically controlled machine tool as in claim 1, wherein: the claw (4) comprises a limiting claw head (5) and a claw seat (6), the claw seat (6) penetrates through the supporting device (1), two long sides are adjacent to the supporting device (1), a sliding rail (7) is arranged at the bottom of the claw seat (6), the claw seat (6) slides on the sliding rail (7), the top of the claw seat (6) is provided with the limiting claw head (5), and the limiting claw head (5) is detachably connected with the claw seat (6).
3. Centering and clamping device for a numerically controlled machine tool as in claim 2, wherein: be equipped with a plurality of spacing holes (8) on jack catch seat (6), be equipped with through-hole (9) on spacing jaw head (5), can dismantle between through-hole (9) and spacing hole (8) on spacing jaw head (5) and be connected.
4. A centering and clamping device for a numerically controlled machine tool as in claim 3, wherein: the top of the limiting claw head (5) is arranged in a step-shaped manner.
5. The centering and clamping device for a numerically controlled machine tool as in claim 4, wherein: the self-centering chuck is provided with a driving hole (10), the driving hole (10) is connected with a driving device (3), and the driving device (3) comprises a hydraulic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323375355.2U CN221389936U (en) | 2023-12-11 | 2023-12-11 | Centering clamping device for numerical control machine tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323375355.2U CN221389936U (en) | 2023-12-11 | 2023-12-11 | Centering clamping device for numerical control machine tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221389936U true CN221389936U (en) | 2024-07-23 |
Family
ID=91923077
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323375355.2U Active CN221389936U (en) | 2023-12-11 | 2023-12-11 | Centering clamping device for numerical control machine tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221389936U (en) |
-
2023
- 2023-12-11 CN CN202323375355.2U patent/CN221389936U/en active Active
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