CN213104543U - Quick-change jaw clamp assembly for three-jaw clamping device of lathe - Google Patents
Quick-change jaw clamp assembly for three-jaw clamping device of lathe Download PDFInfo
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- CN213104543U CN213104543U CN202022056693.XU CN202022056693U CN213104543U CN 213104543 U CN213104543 U CN 213104543U CN 202022056693 U CN202022056693 U CN 202022056693U CN 213104543 U CN213104543 U CN 213104543U
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- claw clamp
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- claw
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- 210000000078 claw Anatomy 0.000 claims abstract description 162
- 230000008859 change Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- 230000003247 decreasing effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 14
- 210000001847 jaw Anatomy 0.000 description 15
- 238000004519 manufacturing process Methods 0.000 description 8
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000003781 tooth socket Anatomy 0.000 description 1
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Abstract
The utility model discloses a quick-change jaw clamp component for a lathe three-jaw clamping device, which comprises a jaw clamp positioning block, a jaw clamp mounting block and a quick-change jaw clamp; the claw clamp positioning block comprises a positioning section and a connecting section, the claw clamp mounting block is a rectangular block, and the claw clamp mounting block is connected with the claw clamp positioning block through a first connecting bolt; the quick-change claw clamp is of a regular N-shaped structure and is connected with the claw clamp positioning block through a second connecting bolt. The utility model discloses simple to operate, swift can effectively improve change, the installation effectiveness of three-jaw clamping device to improve the accuracy and the uniformity of three-jaw clamping device.
Description
Technical Field
The utility model relates to a clamping location technical field in the machining especially relates to a lathe three-jaw clamping device is with quick change claw clamp subassembly.
Background
In the traditional machining, the positioning accuracy (concentricity and coaxiality) of the three-jaw clamping assembly of the lathe equipment is generally within +/-0.10 mm, a part with high positioning accuracy of the three-jaw clamping assembly of the lathe is required to be processed after being subjected to meter reading correction (the three-jaw clamping assembly is suitable for single-piece production and processing), each meter reading and alignment in batch production is not suitable, the mounting efficiency is very low, and the time is wasted; and the installation positioning accuracy is low, and the consistency is poor. At present, an existing three-jaw clamping assembly is connected with a three-jaw machine head through the matching of a T-shaped block and a T-shaped groove, but the existing three-jaw clamping assembly can only clamp parts with one specification diameter, a plurality of sets of three-jaw clamping assemblies are needed in production to meet the requirement of production, long time is delayed when the three jaws are replaced, clamping precision is affected, great inconvenience is brought to production, and production efficiency is greatly affected.
Therefore, in the mass production of parts, a three-jaw clamping device with quick change and high positioning accuracy needs to be designed, so that the problems are solved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a lathe three-jaw clamping device is used to quick change claw clamp subassembly is provided to problem that solves current lathe three-jaw positioner and change inconveniently to prior art exists, and the installation effectiveness is low, and accuracy and uniformity are poor, simple to operate, swift, can effectively improve three-jaw clamping device's change, installation effectiveness to improve three-jaw clamping device's accuracy and uniformity.
In order to solve the technical problem, the utility model discloses a technical scheme is like this: the utility model provides a lathe three-jaw clamping device is with quick change claw holder subassembly which characterized in that: the quick-change claw clamp comprises a claw clamp positioning block, a claw clamp mounting block and a quick-change claw clamp;
the claw clamp positioning block comprises a positioning section and a connecting section, the width of the positioning section is greater than that of the connecting section, so that the section of the claw clamp positioning block is T-shaped, a first connecting screw hole is respectively formed in one side surface of the connecting section far away from the positioning section and close to two ends of the connecting section, and a second connecting screw hole is formed in the middle of the connecting section;
the claw clamp mounting block is a rectangular block, a positioning groove is formed in one side, close to the claw clamp positioning block, of the claw clamp mounting block and corresponds to the connecting section, and the part, far away from the positioning section, of the connecting section of the claw clamp positioning block extends into the positioning groove; a first countersunk hole is formed in the position, corresponding to the two first connecting screw holes, of the claw clamp mounting block, and a through hole is formed in the position, corresponding to the second connecting screw hole, of the claw clamp mounting block; the claw clamp mounting block is connected with the claw clamp positioning block through a first connecting bolt, wherein the first connecting bolt penetrates through the first counter sink and then extends into the first connecting screw hole, and is in threaded fit connection with the claw clamp positioning block; a positioning pin is respectively arranged at one side of the claw clamp mounting block, which is far away from the positioning groove, and the positions close to the two ends of the claw clamp mounting block;
the quick-change claw clamp is of a regular N-edge structure, wherein N is an even number greater than zero; the quick-change claw clamp is characterized in that N positioning holes are formed in one side, close to the claw clamp mounting block, of the quick-change claw clamp, the positions of the positioning holes are opposite to the positions of the positioning pins, and the N positioning holes are uniformly distributed around the quick-change claw clamp for one circle; the N positioning holes form N/2 groups, and any one group of positioning holes can be simultaneously opposite to the two positioning pins in the rotating process of the quick-change claw clamp; a second countersunk hole is formed in the middle of the quick-change claw clamp corresponding to the second connecting screw hole, the quick-change claw clamp is connected with the claw clamp positioning block through a second connecting bolt, two positioning pins are sleeved in a group of positioning holes of the quick-change claw clamp, and one side, close to the claw clamp mounting block, of the quick-change claw clamp is attached to the claw clamp mounting block; and the second connecting bolt sequentially penetrates through the second counter sink and the through hole and then extends into the second connecting screw hole, and is connected with the claw clamp positioning block in a thread fit manner.
Furthermore, each side surface of the quick-change claw clamp is provided with an arc groove, and the arc groove penetrates through one side, away from the claw clamp mounting block, of the quick-change claw clamp, so that the side surface of the quick-change claw clamp is of a stepped structure.
Furthermore, the radius of the circle where the arc groove of each side of the quick-change claw clamp is located is sequentially increased or decreased along the clockwise direction or the anticlockwise direction.
Furthermore, a digital label layer is respectively arranged on one side of the quick-change claw clamp, which is away from the claw clamp mounting block, corresponding to each side face, and numbers on the digital label layer sequentially increase or decrease along the clockwise direction or the anticlockwise direction.
Further, the locating pin is conical, and the diameter of one end, connected with the claw clamp mounting block, of the locating pin is larger than that of the other end of the locating pin.
Further, the locating pin is conical, and the diameter of one end, connected with the claw clamp mounting block, of the locating pin is larger than that of the other end of the locating pin.
Compared with the prior art, the utility model has the advantages of as follows:
1. simple structure, simple to operate, swift only through connecting bolt, can accomplish the installation to improve the installation effectiveness.
2. The quick-change claw clamp has strong adaptability and is of a polygonal structure, so that after three quick-change claw clamp assemblies are mounted on a three-claw machine head, positioning spaces with different sizes can be formed by rotating the quick-change claw clamp, so that the quick-change claw clamp can adapt to parts to be machined with different sizes, and can also be used for secondary clamping, tertiary clamping and the like in part production, and the application range of the quick-change claw clamp can be greatly improved; in addition, in the rotating process, the adjustment can be realized only by loosening the second connecting bolt, so that the mounting and conversion efficiency of the blocky claw clamp is greatly improved, and the clamping efficiency is improved by more than one time compared with the existing three-claw clamping device for dismounting.
3. The quick-change jaw clamps are positioned through the positioning pins and the jaw clamp mounting blocks, so that a stable positioning space can be formed among the three quick-change jaw clamps after each rotation is carried out in sequence, and the accuracy and consistency of the whole three-jaw clamping device are greatly improved; through testing, the positioning precision of the scheme can reach +/-0.01 mm, and is improved by nearly 10 times.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of the present invention in assembly and use.
In the figure: the three-jaw quick-change claw clamp comprises a claw clamp positioning block 1, a positioning section 11, a connecting section 12, a claw clamp mounting block 2, a quick-change claw clamp 3, a positioning groove 4, a first connecting bolt 5, a positioning pin 6, a positioning hole 7, a second connecting bolt 8 and a three-jaw machine head 9.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example (b): referring to fig. 1 and 2, the quick-change jaw clamp assembly for the lathe three-jaw clamping device comprises a jaw clamp positioning block 1, a jaw clamp mounting block 2 and a quick-change jaw clamp 3. Including location section 11 and linkage segment 12, the width of location section 11 is greater than the width of linkage segment 12, makes the section of claw clamp locating piece 1 be the T type to can be corresponding with the mounting groove on the three-jaw aircraft nose 9, and install on the three-jaw aircraft nose 9 after, linkage segment 12 can protrusion in three-jaw aircraft nose 9. A side surface of the connecting section 12 far away from the positioning section 11 is respectively provided with a first connecting screw hole near two ends thereof, and the middle part thereof is provided with a second connecting screw hole.
The claw clamp mounting block 2 is a rectangular block, the length direction of the claw clamp mounting block is consistent with that of the claw clamp positioning block 1, and a positioning groove 4 is formed in the position, corresponding to the connecting section 12, of one side, close to the claw clamp positioning block 1, of the claw clamp mounting block 2; the part of the connecting section 12 of the claw clamp positioning block 1, which is far away from the positioning section 11, extends into the positioning groove 4. In the installation process, the part of the connecting section 12 of the claw clamp positioning block 1, which protrudes out of the three-claw machine head 9, extends into the positioning groove 4, and the claw clamp installation block 2 can be attached to the three-claw machine head 9. Thus, the circumferential positioning of the claw clamp mounting block 2 can be realized, and the claw clamp mounting block 2 is prevented from sliding along the circumferential direction of the three-claw machine head 9. On the claw clamp mounting block 2, a first countersunk hole is arranged at the position corresponding to the two first connecting screw holes, and a through hole is arranged at the position corresponding to the second connecting screw hole. The claw clamp mounting block 2 is connected with the claw clamp positioning block 1 through a first connecting bolt 5, wherein the first connecting bolt 5 penetrates through the first counter sink and then extends into the first connecting screw hole, and is in threaded fit connection with the claw clamp positioning block 1; in the actual assembly process, under the action of the first connecting bolt 5, the jaw clamp positioning block 1 and the jaw clamp mounting block 2 are fastened with the three-jaw machine head 9. In specific implementation, a positioning convex tooth is arranged on one side surface of the claw clamp mounting block 2, which is in contact with the three-claw machine head 9, so that a positioning tooth groove corresponding to the positioning convex tooth is only required to be arranged on the three-claw machine head 9; the claw clamp mounting block 2 and the three-claw machine head 9 can be connected with the positioning tooth socket through the matching of the positioning convex teeth; thereby make the location effect of claw clamp installation piece 2 better, avoid causing claw clamp installation piece 2 to slide in the radial of three-jaw aircraft nose 9 in the course of the work to guarantee the positioning accuracy. A positioning pin 6 is respectively arranged at one side of the claw clamp mounting block 2, which is far away from the positioning groove 4, and is close to the two ends of the claw clamp mounting block; the positioning pin 6 is conical, and the diameter of one end of the positioning pin connected with the claw clamp mounting block 2 is larger than that of the other end of the positioning pin; therefore, in the installation process of the quick-change claw clamp 3, the automatic positioning of the quick-change claw clamp 3 can be better realized. As a preferred mode, the two positioning pins 6 are distributed on two sides of the positioning slot 4, so that the installation stability of the quick-change claw clamp 3 can be better ensured.
The quick-change claw clamp 3 is of a regular N-edge structure, wherein N is an even number greater than zero; during implementation, the quick-change claw clamp can be of a regular hexagon structure, a regular octagon structure or a regular decagon structure, so that the application range of the quick-change claw clamp 3 is further widened. One side of the quick-change claw clamp 3, which is close to the claw clamp mounting block 2, is provided with N positioning holes 7, the positions of the positioning holes 7 are opposite to the positions of the positioning pins 6, and the N positioning holes 7 are uniformly distributed around the quick-change claw clamp 3 for a circle. N locating holes 7 form N/2 groups, and any group of locating holes 7 can be simultaneously opposite to the two locating pins 6 in the rotating process of the quick-change claw clamp 3. Preferably, each positioning hole 7 is located near each corner of the quick-change jaw clamp 3, and two positioning holes 7 near two opposite corners are a group; therefore, the stability and the accuracy of the installation of the quick-change claw clamp 3 can be effectively improved. A second countersunk hole is formed in the middle of the quick-change claw clamp 3 corresponding to the second connecting screw hole, the quick-change claw clamp 3 is connected with the claw clamp positioning block 1 through a second connecting bolt 8, a group of positioning holes 7 of the quick-change claw clamp 3 are sleeved in the two positioning pins 6, and one side, close to the claw clamp mounting block 2, of the quick-change claw clamp 3 is attached to the claw clamp mounting block 2. And the second connecting bolt 8 sequentially penetrates through the second counter sink and the through hole and then extends into the second connecting screw hole, and is connected with the claw clamp positioning block 1 in a threaded fit manner. Therefore, after three quick-change claw clamp 3 assemblies are arranged on the three-claw machine head 9, adjacent side surfaces of the quick-change claw clamps 3 of the three claw clamp assemblies are matched to form a positioning space of a part to be machined.
In specific implementation, each side surface of the quick-change claw clamp 3 is provided with an arc groove, and the arc groove penetrates through one side of the quick-change claw clamp 3, which is far away from the claw clamp mounting block 2, so that the side surface of the quick-change claw clamp 3 is in a stepped structure; in this way, the arc grooves of the adjacent side surfaces of the three quick-change claw clamps 3 can be matched to form a cylindrical positioning space, and in the clamping and positioning process, the contact area between the quick-change claw clamps 3 and a part to be processed can be effectively increased, so that the clamping stability is improved; simultaneously, the side of quick change claw clamp 3 is the stair structure, can effectively treat the tip of processing part and fix a position, avoids producing axial displacement.
In the implementation process, the radius of the circle where the arc groove of each side of the quick-change claw clamp 3 is located is sequentially increased or decreased along the clockwise direction or the anticlockwise direction. And a digital label layer is respectively arranged on one side of the quick-change claw clamp 3 departing from the claw clamp mounting block 2 and corresponds to each side surface, and the numbers on the digital label layer are sequentially increased or decreased along the clockwise direction or the anticlockwise direction. Like this, rotatory quick change claw presss from both sides 3, with the same digit orientation location space on the digit label layer to can realize the formation in location space fast, improve the installation effectiveness of quick change claw clamp 3, and guarantee quick change claw clamp 3's positioning accuracy and uniformity.
This scheme simple structure, simple to operate, swift only through connecting bolt, can accomplish the installation to improve the installation effectiveness. The quick-change claw clamp has strong adaptability and is of a polygonal structure, so that after three quick-change claw clamp assemblies are mounted on a three-claw machine head, positioning spaces with different sizes can be formed by rotating the quick-change claw clamp, so that the quick-change claw clamp can adapt to parts to be machined with different sizes, and can also be used for secondary clamping, tertiary clamping and the like in part production, and the application range of the quick-change claw clamp can be greatly improved; in addition, in the rotating process, the adjustment can be realized only by loosening the second connecting bolt, so that the mounting and conversion efficiency of the blocky claw clamp is greatly improved, and the clamping efficiency is improved by more than one time compared with the existing three-claw clamping device for dismounting. The quick-change jaw clamps are positioned through the positioning pins and the jaw clamp mounting blocks, so that a stable positioning space can be formed among the three quick-change jaw clamps after each rotation is carried out in sequence, and the accuracy and consistency of the whole three-jaw clamping device are greatly improved; through testing, the positioning precision of the scheme can reach +/-0.01 mm, and is improved by nearly 10 times.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting the technical solutions, and those skilled in the art should understand that those modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all should be covered in the scope of the claims of the present invention.
Claims (5)
1. The utility model provides a lathe three-jaw clamping device is with quick change claw holder subassembly which characterized in that: the quick-change claw clamp comprises a claw clamp positioning block, a claw clamp mounting block and a quick-change claw clamp;
the claw clamp positioning block comprises a positioning section and a connecting section, the width of the positioning section is greater than that of the connecting section, so that the section of the claw clamp positioning block is T-shaped, a first connecting screw hole is respectively formed in one side surface of the connecting section far away from the positioning section and close to two ends of the connecting section, and a second connecting screw hole is formed in the middle of the connecting section;
the claw clamp mounting block is a rectangular block, a positioning groove is formed in one side, close to the claw clamp positioning block, of the claw clamp mounting block and corresponds to the connecting section, and the part, far away from the positioning section, of the connecting section of the claw clamp positioning block extends into the positioning groove; a first countersunk hole is formed in the position, corresponding to the two first connecting screw holes, of the claw clamp mounting block, and a through hole is formed in the position, corresponding to the second connecting screw hole, of the claw clamp mounting block; the claw clamp mounting block is connected with the claw clamp positioning block through a first connecting bolt, wherein the first connecting bolt penetrates through the first counter sink and then extends into the first connecting screw hole, and is in threaded fit connection with the claw clamp positioning block; a positioning pin is respectively arranged at one side of the claw clamp mounting block, which is far away from the positioning groove, and the positions close to the two ends of the claw clamp mounting block;
the quick-change claw clamp is of a regular N-edge structure, wherein N is an even number greater than zero; the quick-change claw clamp is characterized in that N positioning holes are formed in one side, close to the claw clamp mounting block, of the quick-change claw clamp, the positions of the positioning holes are opposite to the positions of the positioning pins, and the N positioning holes are uniformly distributed around the quick-change claw clamp for one circle; the N positioning holes form N/2 groups, and any one group of positioning holes can be simultaneously opposite to the two positioning pins in the rotating process of the quick-change claw clamp; a second countersunk hole is formed in the middle of the quick-change claw clamp corresponding to the second connecting screw hole, the quick-change claw clamp is connected with the claw clamp positioning block through a second connecting bolt, two positioning pins are sleeved in a group of positioning holes of the quick-change claw clamp, and one side, close to the claw clamp mounting block, of the quick-change claw clamp is attached to the claw clamp mounting block; and the second connecting bolt sequentially penetrates through the second counter sink and the through hole and then extends into the second connecting screw hole, and is connected with the claw clamp positioning block in a thread fit manner.
2. The quick-change jaw assembly for the lathe three-jaw clamping device according to claim 1, characterized in that: each side surface of the quick-change claw clamp is provided with an arc groove, and the arc groove penetrates through one side, away from the claw clamp mounting block, of the quick-change claw clamp, so that the side surface of the quick-change claw clamp is of a stepped structure.
3. The quick-change jaw assembly for the lathe three-jaw clamping device according to claim 2, characterized in that: the radius of the circle where the arc groove on each side surface of the quick-change claw clamp is located is sequentially increased or decreased along the clockwise direction or the anticlockwise direction.
4. The quick-change jaw assembly for the lathe three-jaw clamping device according to claim 3, wherein: and a digital label layer is respectively arranged on one side of the quick-change claw clamp, which is away from the claw clamp mounting block, corresponding to each side surface, and the numbers on the digital label layer are sequentially increased or decreased along the clockwise direction or the anticlockwise direction.
5. The quick-change jaw assembly for the lathe three-jaw clamping device according to claim 1, characterized in that: the locating pin is conical, and the diameter of one end of the locating pin, which is connected with the claw clamp mounting block, is larger than that of the other end of the locating pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056693.XU CN213104543U (en) | 2020-09-18 | 2020-09-18 | Quick-change jaw clamp assembly for three-jaw clamping device of lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022056693.XU CN213104543U (en) | 2020-09-18 | 2020-09-18 | Quick-change jaw clamp assembly for three-jaw clamping device of lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213104543U true CN213104543U (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022056693.XU Expired - Fee Related CN213104543U (en) | 2020-09-18 | 2020-09-18 | Quick-change jaw clamp assembly for three-jaw clamping device of lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213104543U (en) |
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2020
- 2020-09-18 CN CN202022056693.XU patent/CN213104543U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210504 |