CN212526085U - A car adds clamping apparatus for cylindrical workpiece - Google Patents
A car adds clamping apparatus for cylindrical workpiece Download PDFInfo
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- CN212526085U CN212526085U CN202020891243.XU CN202020891243U CN212526085U CN 212526085 U CN212526085 U CN 212526085U CN 202020891243 U CN202020891243 U CN 202020891243U CN 212526085 U CN212526085 U CN 212526085U
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- clamping
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- connecting plate
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Abstract
The utility model relates to the technical field of machining, in particular to car adds clamping apparatus for drum type work piece evenly outwards realizes twelve double-layered points from the inside of cylinder work piece and props up, adjusts the outside range of expanding of six clamp blocks through adjusting the deepening of railing in to the spring clamp cover to the dynamics that the cylinder work piece propped up is guaranteed to the adjustment anchor clamps and is coaxial with the work piece. The utility model discloses a twelve press from both sides the point and carry out inside the propping to drum type work piece from the inside mode of outside anti-clamp of drum work piece, can strictly guarantee that work piece, anchor clamps, lathe spindle are coaxial, and lathe work is more accurate.
Description
Technical Field
The utility model relates to a machinery processing technology field, in particular to car adds clamping apparatus for drum type work piece.
Background
In traditional lathe work, the coaxiality of the clamp and the part is aligned manually, but the clamp has large errors, and particularly when the clamp clamps a cylindrical surface workpiece, the coaxiality is difficult to ensure and the stability is difficult to control due to the fact that the center of a circle is hollow. Moreover, the cylindrical workpiece is clamped from the outside and is easily deformed by force, which affects the accuracy of the turning process.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model discloses a car adds clamping apparatus for cylinder type work piece. The cylindrical surface workpiece is reversely clamped by twelve points, so that the stability of the coaxiality is ensured, the coaxiality is ensured by completely depending on the clamp, the precision is improved, and the error is greatly reduced.
The specific technical scheme is as follows:
a turning clamp for a cylindrical workpiece, which realizes twelve clamping point supports from the inside of the cylindrical workpiece to the outside uniformly; the fixture is coaxially mounted with a lathe spindle through a connecting plate, the connecting plate is circular, a through hole is formed in the center of the connecting plate, a circular groove is formed in one end of the connecting plate on the outer side of the through hole and used for buckling and mounting a connecting sleeve, screw holes A are uniformly formed in the outer side of the circumference of the connecting plate, the connecting plate and the lathe spindle are coaxially mounted through screws, and screw holes B are uniformly formed in the inner side of the circumference of the; the clamp comprises a spring jacket and a pull rod, a clamping table is processed at one end of the spring jacket along an axial through hole in the center of the spring jacket and is just clamped into the through hole of the connecting plate, a hole is formed in the position, corresponding to the screw hole B, on the circumference of the connecting plate, the spring jacket and the connecting plate are coaxially and fixedly installed through a screw, the other end of the spring jacket is a hollow circular tube, one side, close to the tail end, of the hollow circular tube is uniformly processed into six clamping blocks along the circumferential direction, and the clamping blocks extend; six holes are uniformly formed in the side wall of the hollow circular tube close to one side of the clamping table, and the hollow circular tube is screwed with the mistake-proofing jackscrew; the inner part of the clamping block is expanded by 6 degrees in taper from one side of the clamping table to one side of the free end, two axial ends of the clamping block are respectively processed into a front clamping point and a rear clamping point which are convex, twelve clamping points are formed by the clamping block, and a concave clearance is formed between the front clamping point and the rear clamping point; the pull rod comprises a pull rod head part, a pull rod middle part and a pull rod tail part, wherein the pull rod head part penetrates through a through hole in the center of the spring jacket and a through hole in the center of the connecting plate and is finally buckled and coaxially fixed by the connecting sleeve; the tail part of the pull rod is in an expanded shape with the taper of 6 degrees, the total length of the tail part of the pull rod is larger than the axial length of the clamping block, a hole is formed in the center of the free end face of the tail part of the pull rod, six adjusting grooves with the axial lengths are uniformly formed in the side wall of the middle part of the pull rod, and the anti-dislocation jackscrew can be correspondingly screwed into the adjusting grooves, slides along the axial direction and tightly jacks the fixed pull rod.
And a limiting gasket is additionally arranged between the connecting plate and the clamping table.
The length of the clamping block is 2/5 of the total length of the hollow circular tube.
The adjusting hole is an inner hexagon wrench fabrication hole.
When the tail part of the pull rod is matched with the inner part of the clamping block, the contact surface of the larger end is not less than 70%.
The back of the clamping table of the spring jacket is additionally provided with an error-proof block, one side of the error-proof block is provided with an arc-shaped error-proof concave part, and the workpiece can be limited in position by the error-proof concave part after being sleeved on the spring jacket to prevent dislocation.
The spring jacket is made of elastic steel.
Compared with the prior art, the utility model discloses following beneficial technological effect has:
(1) the utility model discloses a twelve press from both sides the point and carry out inside the propping to drum type work piece from the inside mode of outside anti-clamp of drum work piece, and the inside of six clamp pieces is the tapering by ka tai one side to free end one side and is 6 expansions, and the axial both ends of clamp piece are processed into bellied preceding clamping point and back clamping point respectively, and the conformal twelve clamp point that becomes forms in the middle of preceding clamping point and the back clamping point is sunken keeps away empty. The six points are clamped by the front circumference and the six points are clamped by the rear circumference, which is equivalent to that twelve clamping points on two circumferential planes are arranged inside the clamping blocks to be reversely clamped and supported. The taper of the tail part of the pull rod is matched with an expansion shape of 6 degrees, when the tail part of the pull rod is matched with the inner parts of the clamping blocks, the contact surface of the larger end is not less than 70 percent, and the outward expansion amplitude of the six clamping blocks is adjusted by adjusting the depth of the handrail into the spring clamp sleeve, so that the force for supporting the cylindrical workpiece is adjusted, and the coaxiality of the clamp and the workpiece is ensured. After the adjustment is completed, the anti-mistake jack screw is correspondingly screwed into the adjusting groove, slides along the axial direction and tightly pushes the fixed pull rod.
(2) The utility model discloses form sunken keeping away in the middle of the preceding pinch-off point of the tight piece of clamp and the back pinch-off point, when keeping away the sky and can avoid pressing from both sides tight piece expansion deformation, can not block the work piece between preceding pinch-off point and the back pinch-off point.
(3) The utility model discloses the back of spring clamp cover's ka tai installs an error proofing piece additional, and one side of error proofing piece has curved error proofing concave part, and the work piece cover can prevent the dislocation by the cambered surface limit position of error proofing concave part after the spring clamp sheathes in, further guarantees the machining precision.
Drawings
FIG. 1 is a schematic view of the connection between the clamp and the lathe;
FIG. 2 is a schematic view of the structure of the clamp connection plate of the present invention;
FIG. 3 is a cross-sectional view of a spring collet of the clamp of the present invention;
FIG. 4 is a schematic view of the internal structure of the spring clamp sleeve of the clamp of the present invention;
FIG. 5 is a schematic structural view of the clamping block of the clamping apparatus of the present invention;
FIG. 6 is a schematic view of the structure of the pull rod of the clamp of the present invention;
FIG. 7 is a schematic view of the structure of the anti-dislocation block of the clamp of the present invention;
fig. 8 is a schematic perspective view of the clamp for clamping a workpiece according to the present invention.
In the figure, 1-connecting sleeve; 2, connecting plates; 3-a spring jacket; 4, preventing wrong jackscrews; 5, a limiting gasket; 6, a pull rod; 7, error prevention block; 8, screw hole A; 9-lathe spindle; 10, end surface of a lathe spindle; 11-a clamping block; 12-avoiding the space; 13 — front clamping point; 14 — rear clamping point; 15-a workpiece; 16-screw hole B; 17-a clamping table; 18-the middle part of the pull rod; 19-the tail of the pull rod; 20-hole; 21-a tie rod head; 22-error-proofing recesses; 23-adjustment groove.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings, but the scope of the present invention is not limited to the accompanying drawings.
Fig. 1 is the utility model discloses the anchor clamps are connected the schematic diagram with the lathe, and fig. 2 is the utility model discloses anchor clamps connecting plate structure schematic diagram, fig. 3 is the utility model discloses anchor clamps spring jacket section view, fig. 4 is the utility model discloses anchor clamps spring jacket inner structure schematic diagram, fig. 5 is the utility model discloses anchor clamps press from both sides tight piece structure schematic diagram, fig. 6 is the utility model discloses anchor clamps pull rod structure schematic diagram, fig. 7 is the utility model discloses anchor clamps mistake proofing block structure schematic diagram, fig. 8 is the utility model discloses anchor clamps centre gripping work piece stereogram, as shown in the figure:
a turning clamp for a cylindrical workpiece, which realizes twelve clamping point supports from the inside of the cylindrical workpiece to the outside uniformly; the fixture is coaxially mounted with a lathe spindle 9 through a connecting plate 2, the connecting plate 2 is circular, a through hole is formed in the center, a circular groove is formed in one end of the connecting plate at the outer side of the through hole and used for buckling and mounting the connecting sleeve 1, screw holes A8 are uniformly formed in the outer side of the circumference, the connecting plate 2 and the lathe spindle 9 are coaxially mounted through screws, and screw holes B16 are uniformly formed in the inner side of the circumference; the clamp comprises a spring jacket 3 and a pull rod 6, wherein a clamping table 17 is processed at one end of the center of the spring jacket 3 along an axial through hole and is just clamped into the through hole of the connecting plate 2, a hole is formed in the circumference at a position corresponding to a screw hole B16, the spring jacket 3 and the connecting plate 2 are coaxially and fixedly installed through a screw, the other end of the spring jacket 3 is a hollow circular tube, one side of the hollow circular tube close to the tail end is uniformly processed into six clamping blocks 11 along the circumferential direction, and the clamping blocks 11 extend along the axial direction; six holes are uniformly formed in the side wall of the hollow circular tube close to one side of the clamping table, and the hollow circular tube is screwed into the mistake proofing jackscrew 4; the inside of the clamping block 11 is expanded by 6 degrees from one side of the clamping table 17 to one side of the free end, the two axial ends of the clamping block 11 are respectively processed into a front clamping point 13 and a rear clamping point 14 which are convex, twelve clamping points are formed by the two axial ends of the clamping block, and a concave clearance 12 is formed between the front clamping point 13 and the rear clamping point 14; the pull rod 6 comprises a pull rod head part 21, a pull rod middle part 18 and a pull rod tail part 19, wherein the pull rod head part 21 penetrates through a through hole in the center of the spring jacket 3 and a through hole in the center of the connecting plate 2 and is finally buckled and coaxially fixed by the connecting sleeve 1; the tail part 19 of the pull rod is in an expanded shape with 6-degree taper, the total length of the tail part 19 of the pull rod is larger than the axial length of the clamping block 11, a hole 20 is formed in the center of the free end face of the tail part 19 of the pull rod, six adjusting grooves 23 with axial lengths are uniformly formed in the side wall of the middle part 18 of the pull rod, and the anti-dislocation jacking screw 4 can be correspondingly screwed into the adjusting grooves 23, slides along the axial direction and jacks up to fix the pull rod 6.
And a limiting gasket 5 is additionally arranged between the connecting plate 2 and the clamping table 17.
The length of the clamping block 11 is 2/5 of the total length of the hollow circular tube.
The hole 20 is a fabrication hole of an inner hexagonal wrench.
When the tail part 19 of the pull rod is matched with the inner part of the clamping block 11, the contact surface of the larger end is not less than 70%.
The back of the clamping table 17 of the spring jacket 3 is additionally provided with an error-proof block 7, one side of the error-proof block 7 is provided with an arc-shaped error-proof concave part 22, and the position of a workpiece sleeved on the spring jacket 3 can be limited by the error-proof concave part 22 to prevent dislocation.
The spring jacket 3 is made of an elastic steel material.
When the device works, the cylindrical workpiece 15 is firstly sleeved outside the spring jacket 3, one end of the cylindrical workpiece is abutted against the spring jacket 3, and the position of the cylindrical workpiece is limited by the error-proof concave part 22 to prevent dislocation. At the moment, when the tail part 19 of the pull rod is matched with the inner parts of the clamping blocks 11, the contact surface of the larger end is not less than 70, then the anti-dislocation jackscrew 4 is correspondingly screwed into the adjusting groove 23 and slides along the axial direction, the depth of the pull rod into the spring clamp sleeve is adjusted to adjust the outward expansion amplitude of the six clamping blocks 11, so that the force for supporting the cylindrical workpiece 15 is adjusted, and the clamp and the workpiece 15 are ensured to be coaxial. After the adjustment is completed, the mistake-proofing jackscrew 4 is screwed down in the adjusting groove to jack the fixed pull rod, so that twelve-point reverse clamping is completed. And finally, carrying out normal turning.
Claims (7)
1. The utility model provides a car adds clamping apparatus for cylindrical workpiece which characterized in that: the clamp uniformly and outwards supports twelve clamping points from the inside of the cylindrical workpiece; the fixture is coaxially mounted with a lathe spindle through a connecting plate, the connecting plate is circular, a through hole is formed in the center of the connecting plate, a circular groove is formed in one end of the connecting plate on the outer side of the through hole and used for buckling and mounting a connecting sleeve, screw holes A are uniformly formed in the outer side of the circumference of the connecting plate, the connecting plate and the lathe spindle are coaxially mounted through screws, and screw holes B are uniformly formed in the inner side of the circumference of the; the clamp comprises a spring jacket and a pull rod, a clamping table is processed at one end of the spring jacket along an axial through hole in the center of the spring jacket and is just clamped into the through hole of the connecting plate, a hole is formed in the position, corresponding to the screw hole B, on the circumference of the connecting plate, the spring jacket and the connecting plate are coaxially and fixedly installed through a screw, the other end of the spring jacket is a hollow circular tube, one side, close to the tail end, of the hollow circular tube is uniformly processed into six clamping blocks along the circumferential direction, and the clamping blocks extend; six holes are uniformly formed in the side wall of the hollow circular tube close to one side of the clamping table, and the hollow circular tube is screwed with the mistake-proofing jackscrew; the inner part of the clamping block is expanded by 6 degrees in taper from one side of the clamping table to one side of the free end, two axial ends of the clamping block are respectively processed into a front clamping point and a rear clamping point which are convex, twelve clamping points are formed by the clamping block, and a concave clearance is formed between the front clamping point and the rear clamping point; the pull rod comprises a pull rod head part, a pull rod middle part and a pull rod tail part, wherein the pull rod head part penetrates through a through hole in the center of the spring jacket and a through hole in the center of the connecting plate and is finally buckled and coaxially fixed by the connecting sleeve; the tail part of the pull rod is in an expanded shape with the taper of 6 degrees, the total length of the tail part of the pull rod is larger than the axial length of the clamping block, a hole is formed in the center of the free end face of the tail part of the pull rod, six adjusting grooves with the axial lengths are uniformly formed in the side wall of the middle part of the pull rod, and the anti-dislocation jackscrew can be correspondingly screwed into the adjusting grooves, slides along the axial direction and tightly jacks the fixed pull rod.
2. The turning jig for cylindrical workpieces according to claim 1, characterized in that: and a limiting gasket is additionally arranged between the connecting plate and the clamping table.
3. The turning jig for cylindrical workpieces according to claim 1, characterized in that: the length of the clamping block is 2/5 of the total length of the hollow circular tube.
4. The turning jig for cylindrical workpieces according to claim 1, characterized in that: the adjusting groove is an inner hexagon wrench fabrication hole.
5. The turning jig for cylindrical workpieces according to claim 1, characterized in that: when the tail part of the pull rod is matched with the inner part of the clamping block, the contact surface of the larger end is not less than 70%.
6. The turning jig for cylindrical workpieces according to claim 1, characterized in that: the back of the clamping table of the spring jacket is additionally provided with an error-proof block, one side of the error-proof block is provided with an arc-shaped error-proof concave part, and the workpiece can be limited in position by the error-proof concave part after being sleeved on the spring jacket to prevent dislocation.
7. The turning jig for cylindrical workpieces according to claim 1, characterized in that: the spring jacket is made of elastic steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020891243.XU CN212526085U (en) | 2020-05-25 | 2020-05-25 | A car adds clamping apparatus for cylindrical workpiece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020891243.XU CN212526085U (en) | 2020-05-25 | 2020-05-25 | A car adds clamping apparatus for cylindrical workpiece |
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| Publication Number | Publication Date |
|---|---|
| CN212526085U true CN212526085U (en) | 2021-02-12 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020891243.XU Active CN212526085U (en) | 2020-05-25 | 2020-05-25 | A car adds clamping apparatus for cylindrical workpiece |
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| CN (1) | CN212526085U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265518A (en) * | 2021-06-17 | 2021-08-17 | 河南江扬机电设备安装有限公司 | Safe electromagnetic processing equipment for urban construction mechanical parts made of metal materials |
-
2020
- 2020-05-25 CN CN202020891243.XU patent/CN212526085U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113265518A (en) * | 2021-06-17 | 2021-08-17 | 河南江扬机电设备安装有限公司 | Safe electromagnetic processing equipment for urban construction mechanical parts made of metal materials |
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