CN116786854A - Chuck with stroke compensation function - Google Patents
Chuck with stroke compensation function Download PDFInfo
- Publication number
- CN116786854A CN116786854A CN202311023018.9A CN202311023018A CN116786854A CN 116786854 A CN116786854 A CN 116786854A CN 202311023018 A CN202311023018 A CN 202311023018A CN 116786854 A CN116786854 A CN 116786854A
- Authority
- CN
- China
- Prior art keywords
- block
- sliding
- chuck
- driving
- clamping jaw
- 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.)
- Pending
Links
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000003754 machining Methods 0.000 abstract description 4
- 210000000078 claw Anatomy 0.000 description 21
- 238000010586 diagram Methods 0.000 description 3
- 230000000452 restraining effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
Abstract
The invention provides a chuck with a stroke compensation function, which comprises a base, a disk body, a push rod and a guide block, wherein a sliding rail is arranged on the base, a sliding seat is arranged on the sliding rail, a clamping jaw mounting seat is arranged at the top of the sliding seat, a driving mechanism for driving the sliding seat to slide along the sliding rail is arranged on the guide block, the driving mechanism drives the sliding seat to move towards the center of the disk body, the clamping jaw is gradually close to a part and contacts with the part, when the clamping jaw contacts with the part, the opposite clamping jaw does not contact with the part, the driving mechanism drives the clamping jaw which does not contact with the part to move continuously and contact with the part, and the clamping jaw contacted with the part does not move further when the driving mechanism continues to act, so that the problems that one clamping jaw is clamped to the part, the clamping jaw is not contacted with the part, deviation between the part and the clamping position of the actual design is caused, and the part machining precision is reduced and even the part is scrapped are solved.
Description
Technical Field
The invention relates to the technical field of chucks, in particular to a chuck with a stroke compensation function.
Background
The power chuck is a chuck driven by power and is a mechanical device used for clamping a workpiece on a machine tool. The workpiece is clamped and positioned by the radial movement of the movable claws uniformly distributed on the chuck body. The chuck is generally composed of a chuck body, movable jaws and a jaw drive mechanism 3.
When oval spare part is clamped, because the shape belongs to very shape, the jack catch that leads to the chuck has had the centre gripping to the spare part when the centre gripping spare part, and another jack catch has not contacted with the spare part yet, causes the jack catch to promote the spare part and removes, leads to the spare part to deviate from the clamping position of actual design, leads to later stage processing position also to deviate, causes spare part machining precision to reduce even leads to the spare part to scrap.
Disclosure of Invention
The invention aims to provide a chuck with a stroke compensation function, so as to overcome the defects in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows: the chuck with the stroke compensation function comprises a base, a disc body, a push rod and a guide block, wherein a sliding rail is arranged on the base, a sliding seat is arranged on the sliding rail, a clamping jaw mounting seat is arranged at the top of the sliding seat, and a driving mechanism for driving the sliding seat to slide along the sliding rail is arranged on the guide block.
In the scheme, the specific working principle of the chuck is that the clamping jaw is mounted on the sliding seat, the part is placed on the chuck, the push rod is provided with the hydraulic cylinder or the air cylinder, the push rod is pulled back, the push rod slides along the disc body with the guide block, the guide block drives the driving mechanism to work, the driving mechanism drives the sliding seat to move towards the center of the disc body, the clamping jaw is gradually close to the part and contacts with the part, when the clamping jaw is in contact with the part, after the clamping jaw is in contact with the part, the opposite clamping jaw drives the clamping jaw which is not in contact with the part to move continuously and contact with the part, and the clamping jaw in contact with the part does not move further when the driving mechanism continues to act, so that the problem that one clamping jaw clamps the part, the other clamping jaw is not in contact with the part, the clamping jaw pushes the part to move, the part is caused to deviate from the clamping position of actual design, the later processing position is also caused, and the processing precision of the part is reduced and even the part is scrapped is caused is solved.
The invention relates to an improvement of a chuck with a stroke compensation function, which comprises a driving block, a sliding block and a compensation block, wherein the driving block is nested on a guide block, the driving block is fixedly connected with the guide block, the driving block is provided with a sliding groove and a mounting opening, the compensation block is arranged in the mounting opening, the driving block is rotationally connected with the compensation block through a pin shaft, the sliding block is in sliding connection with the sliding groove of the driving block, the sliding block is provided with an oblique wedge-shaped groove matched with the oblique wedge-shaped block, the sliding block is provided with a connecting groove, and the corresponding end of the compensation block is embedded into the connecting groove of the sliding block.
In the scheme, the specific principle of the driving mechanism is that the compensation block is placed in the driving block, the pin shaft is embedded into the driving block and the compensation block, the compensation block rotates around the driving block through the pin shaft, the sliding block is installed in the driving block and can slide along the driving block, the sliding block is connected with one end of the compensation block through the connecting groove, two ends of the compensation block are respectively connected with one sliding block, and the inclined wedge-shaped block of the sliding block is embedded into the inclined wedge-shaped groove of the sliding seat. The driving block is driven by the guide block, the sliding seat is driven by the sliding block to slide along the guide rail under the cooperation of the inclined wedge-shaped block and the inclined wedge-shaped groove, after the claw on the sliding seat contacts a part, the claw on the sliding seat at the other end of the compensation block is not contacted with the part, the driving block continues to pull back, the sliding block contacted with the claw is not moved, the compensation block takes the sliding block which is not contacted with the claw as a fixed point, and the compensation block rotates around the pin shaft to drive the sliding block at the other end of the compensation block to continue to move, so that the claw is contacted with and clamps the part finally.
As an improvement of the chuck with stroke compensation function, the inclined direction of the inclined wedge-shaped groove of the adjacent slide seat is opposite.
In the above scheme, the inclined wedge grooves of adjacent sliding seats are opposite in inclination direction so as to ensure that the sliding seats slide relatively or slide reversely at the same time.
As an improvement of the chuck with the stroke compensation function, the sliding rail is made of wear-resistant steel materials.
In the scheme, the sliding rail made of the wear-resistant steel material can ensure the service life of the sliding rail.
As an improvement of the chuck with the stroke compensation function, the chuck body is provided with a limit groove for limiting the motion track of the sliding seat.
In the scheme, the tray body is provided with the limit groove for restraining the motion track of the sliding seat so as to ensure that the sliding seat slides linearly.
As an improvement of the chuck with stroke compensation function, the compensation blocks are used in pairs, and act on two sliding seats which are arranged oppositely.
In the scheme, the chuck comprises four clamping jaws, so that the two sliding blocks and the sliding seat are arranged, and the sliding seat which is arranged oppositely shares a compensation block, so that the clamping stability of the clamping jaws is ensured.
Compared with the prior art, the invention has the beneficial effects that: the push rod slides along the disc body with the guide block, the guide block drives the driving mechanism to work, the driving mechanism drives the sliding seat to move towards the center of the disc body, the clamping jaw is gradually close to the part and is contacted with the part, when the clamping jaw is not contacted with the part yet after being contacted with the part, the driving mechanism drives the clamping jaw which is not contacted with the part to move continuously and is contacted with the part, the clamping jaw contacted with the part does not move further when the driving mechanism continues to act, so that the problem that all clamping jaws clamp the part is solved, one clamping jaw clamps the part, the other clamping jaw is not contacted with the part yet, the clamping jaw pushes the part to move, the part is deviated from the clamping position actually designed, the later machining position is deviated, the machining precision of the part is reduced, and even the part is scrapped is solved; the service life of the sliding rail can be guaranteed by the sliding rail made of the wear-resistant steel material; the chuck comprises four clamping jaws, so that two sliding blocks and sliding seats are arranged, and the sliding seats which are arranged oppositely share a compensation block, so that the clamping stability of the clamping jaws is ensured.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic diagram of a chuck (chuck up);
FIG. 2 is a schematic diagram of a chuck with its base up;
FIG. 3 is a schematic view of the structure after removal of the tray;
FIG. 4 is a schematic view of the structure after removal of the tray and jaw mount;
FIG. 5 is a schematic view of the structure of the push rod, guide block and drive mechanism (with one slider removed);
fig. 6 is a schematic diagram of a connection structure of the slide rail, the slide base and the slider.
1, a base; 2. a tray body; 3. a push rod; 4. a guide block; 5. a slide rail; 6. a slide; 7. a clamping jaw mounting seat; 8. a driving mechanism; 81. a driving block; 82. a slide block; 83. a compensation block; 9. a wedge block; 10. wedge-shaped grooves.
Detailed Description
The following description of the embodiments of the present invention 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 invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 4, a chuck with stroke compensation function comprises a base 1, a disc body 2, a push rod 3 and a guide block 4, wherein a sliding rail 5 is arranged on the base 1, a sliding seat 6 is arranged on the sliding rail 5, a clamping jaw mounting seat 7 is arranged at the top of the sliding seat 6, and a driving mechanism 8 for driving the sliding seat 6 to slide along the sliding rail 5 is arranged on the guide block 4.
The chuck has the specific working principle that the claw is mounted on the sliding seat 6, the part is placed on the chuck, the push rod 3 is provided with a hydraulic cylinder or an air cylinder, the push rod 3 is pulled back, the push rod 3 carries the guide block 4 to slide along the disc body 2, the guide block 4 drives the driving mechanism 8 to work, the driving mechanism 8 drives the sliding seat 6 to move towards the center of the disc body 2, the claw is gradually close to the part and contacts with the part, when the claw contacts with the part, the claw which is opposite to the claw does not contact with the part, the driving mechanism 8 drives the claw which is not contacted with the part to continuously move and contact with the part, and the claw contacted with the part does not further move when the driving mechanism 8 continuously acts, so that the problem that all the claw clamps the part, one claw clamps the part, the other claw does not contact with the part, the claw pushes the part to move, the part is caused to deviate from the clamping position which is actually designed, the later processing position is caused to deviate, the part processing precision is reduced and even the part is scrapped is caused is solved.
As shown in fig. 4 to 6, the driving mechanism 8 comprises a driving block 81, a sliding block 82 and a compensating block 83, wherein the driving block 81 is nested on the guiding block 4, the driving block 81 is fixedly connected with the guiding block 4, the driving block 81 is provided with a sliding groove and a mounting opening, the compensating block 83 is arranged in the mounting opening, the driving block 81 is rotationally connected with the compensating block 83 through a pin shaft, the sliding block 82 is slidingly connected with the sliding groove of the driving block 81, the sliding block 82 is provided with a wedge-shaped block 9, the sliding seat 6 is provided with a wedge-shaped groove 10 adapted with the wedge-shaped block 9, the sliding block 82 is provided with a connecting groove, and the corresponding end of the compensating block 83 is embedded into the connecting groove of the sliding block 82.
As shown in fig. 1 to 6, the specific principle of the driving mechanism 8 is that the compensation block 83 is placed in the driving block 81, the pin shaft is embedded into the driving block 81 and the compensation block 83, the compensation block 83 rotates around the driving block 81 through the pin shaft, the sliding block 82 is installed in the driving block 81, the sliding block 82 can slide along the driving block 81, the sliding block 82 is connected with one end of the compensation block 83 through a connecting groove, two ends of the compensation block 83 are respectively connected with one sliding block 82, and the inclined wedge-shaped block 9 of the sliding block 82 is embedded into the inclined wedge-shaped groove 10 of the sliding seat 6. The driving block 81 is driven by the guide block 4, the sliding block 82 drives the sliding seat 6 to slide along the guide rail under the cooperation of the inclined wedge-shaped block 9 and the inclined wedge-shaped groove 10, after the claw on the sliding seat 6 contacts a part, the claw on the sliding seat 6 at the other end of the compensating block 83 does not contact the part, the driving block 81 continues to pull back, the sliding block 82 contacting the claw does not move, the compensating block 83 takes the sliding block 82 which is not reached as a fixed point, the compensating block 83 rotates around the pin shaft to drive the sliding block 82 at the other end of the compensating block 83 to move continuously, and finally, the claw contacts and clamps the part.
The inclined direction of the inclined wedge-shaped groove 10 of the adjacent slide seat 6 is opposite.
The inclined direction of the wedge-shaped grooves 10 of the adjacent sliding seats 6 is opposite to ensure that the sliding seats 6 slide relatively or slide oppositely.
The sliding rail 5 is made of wear-resistant steel materials.
The slide rail 5 made of the wear-resistant steel material can ensure the service life of the slide rail 5.
The tray body 2 is provided with a limit groove for restricting the motion trail of the sliding seat 6.
The tray body 2 is provided with a limit groove for restraining the motion track of the sliding seat 6 so as to ensure that the sliding seat 6 slides linearly.
The compensation blocks 83 are used in pairs, and the compensation blocks 83 act on two slides 6 arranged opposite to each other.
The chuck comprises four jaws, so that two sliding blocks 82 and sliding seats 6 are arranged, and the sliding seats 6 arranged oppositely share one compensation block 83, so that the clamping stability of the jaws is ensured.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (6)
1. The chuck with the stroke compensation function comprises a base, a disc body, a push rod and a guide block, and is characterized in that a slide rail is arranged on the base, a slide seat is arranged on the slide rail, a clamping jaw mounting seat is arranged at the top of the slide seat, and a driving mechanism for driving the slide seat to slide along the slide rail is arranged on the guide block.
2. The chuck with stroke compensation function according to claim 1, wherein the driving mechanism comprises a driving block, a sliding block and a compensation block, wherein the driving block is nested on the guiding block, the driving block is fixedly connected with the guiding block, the driving block is provided with a sliding groove and a mounting opening, the compensation block is arranged in the mounting opening, the driving block is rotationally connected with the compensation block through a pin shaft, the sliding block is slidably connected with the sliding groove of the driving block, the sliding block is provided with a wedge-shaped groove matched with the wedge-shaped block, the sliding block is provided with a connecting groove, and the corresponding end of the compensation block is embedded into the connecting groove of the sliding block.
3. The chuck with stroke compensation as set forth in claim 1, wherein the inclined wedge grooves of adjacent ones of said slide blocks are inclined in opposite directions.
4. The chuck with stroke compensation function as set forth in claim 1, wherein said slide rail is made of a wear resistant steel material.
5. The chuck with stroke compensation function as claimed in claim 1, wherein the disk body is provided with a limit groove for restricting a movement track of the slide.
6. A chuck with stroke compensation function according to claim 1, characterized in that the compensation blocks are used in pairs, which act on two slides arranged opposite each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311023018.9A CN116786854A (en) | 2023-08-15 | 2023-08-15 | Chuck with stroke compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311023018.9A CN116786854A (en) | 2023-08-15 | 2023-08-15 | Chuck with stroke compensation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116786854A true CN116786854A (en) | 2023-09-22 |
Family
ID=88039959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311023018.9A Pending CN116786854A (en) | 2023-08-15 | 2023-08-15 | Chuck with stroke compensation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116786854A (en) |
-
2023
- 2023-08-15 CN CN202311023018.9A patent/CN116786854A/en active Pending
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