CN212665537U - Workpiece positioning device for lathe - Google Patents
Workpiece positioning device for lathe Download PDFInfo
- Publication number
- CN212665537U CN212665537U CN202021341612.4U CN202021341612U CN212665537U CN 212665537 U CN212665537 U CN 212665537U CN 202021341612 U CN202021341612 U CN 202021341612U CN 212665537 U CN212665537 U CN 212665537U
- Authority
- CN
- China
- Prior art keywords
- limiting
- mounting hole
- lathe
- positioning device
- spacing portion
- 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.)
- Active
Links
Images
Landscapes
- Turning (AREA)
Abstract
The utility model discloses a work piece positioner for lathe belongs to work piece positioner technical field. The positioning device comprises a limiting seat, a through hole penetrating through the limiting seat is formed in the middle of the limiting seat, a mandril is arranged inside the through hole, and the mandril is connected with the limiting seat in a sliding manner; the middle part of the main shaft arranged on the tailstock is provided with a mounting hole, the limiting seat is inserted in the mounting hole, and one end of the ejector rod in the mounting hole is provided with a limiting plate. Spacing seat is the notch cuttype structure including location portion and spacing portion, and spacing portion is located the inside of mounting hole, and the surface of spacing portion is the conical surface, and the size that spacing portion is close to location portion end is greater than the size of the other end, is provided with the conical surface looks adaptation of spacing portion on the lateral wall of mounting hole. The utility model adopts the above structure workpiece positioning device for lathe can realize fixing the work piece in great within range, and adaptability is better.
Description
Technical Field
The utility model belongs to the technical field of the work piece positioner technique and specifically relates to a work piece positioner for lathe is related to.
Background
The lathe is a machine tool for turning a rotating workpiece mainly by a lathe tool, and a drill, a reamer, a tap, a die, a knurling tool and the like can be used for corresponding processing on the lathe tool. The workpiece is fixed on a chuck of the lathe, a tailstock is arranged at the rear section of the lathe, a main shaft which rotates synchronously with the chuck is arranged on the tailstock, an ejector pin which tightly pushes the workpiece is arranged on the main shaft, and two ends of the workpiece are respectively fixed on the chuck and the ejector pin to realize the fixation of the workpiece on the lathe. The tailstock is fixed on a lathe, the thimble is fixed on the main shaft or can be adjusted in a small range, and the thimble can only fix a workpiece with a certain length, so that the adaptability is poor.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a workpiece positioning device for lathe can realize the fixed to the work piece at great within range, and adaptability is better.
In order to achieve the purpose, the utility model provides a workpiece positioning device for a lathe, which comprises a limiting seat, wherein the middle part of the limiting seat is provided with a through hole which penetrates through the limiting seat, a mandril is arranged inside the through hole, and the mandril is connected with the limiting seat in a sliding way; the middle part of a main shaft arranged on the tailstock is provided with a mounting hole, a limiting seat is inserted in the mounting hole, and one end of the ejector rod in the mounting hole is provided with a limiting plate;
spacing seat is the notch cuttype structure including location portion and spacing portion, and spacing portion is located the inside of mounting hole, and the surface of spacing portion is the conical surface, and the size that spacing portion is close to location portion end is greater than the size of the other end, is provided with the conical surface looks adaptation of spacing portion on the lateral wall of mounting hole.
Preferably, the positioning part is provided with a threaded hole which enables the jackscrew to penetrate through and be matched with the jackscrew, and the jackscrew penetrates through the threaded hole and is tightly propped against the surface of the ejector rod to realize the fixation of the ejector rod and the positioning part.
Preferably, the side wall of the mounting hole is provided with a sliding groove, the limiting plate is provided with a sliding block matched with the sliding groove, the sliding block is located in the sliding groove, and the sliding block is connected with the sliding groove in a sliding mode.
Preferably, the limiting plates are at least provided with two limiting blocks, and the limiting blocks are uniformly distributed on the limiting plates.
Preferably, the sliding groove is of a dovetail groove structure, and the limiting block is of a dovetail tenon structure.
Preferably, the taper of the conical surface of the limiting part is 5 degrees.
Therefore, the utility model adopts the above structure a workpiece positioning device for lathe, the surface of spacing portion is the conical surface, be provided with on the mounting hole side of main shaft with the conical surface of spacing portion conical surface looks adaptation, realize the spacing to the ejector pin through the conical surface. The limiting plate that sets up on the ejector pin end can improve the stability when the ejector pin rotates. The positioning part is provided with a jackscrew for fixing the ejector rod, and the length of the ejector rod extending out of the limiting seat is adjusted through the jackscrew, so that the end head of the ejector rod is tightly propped against the end surface of the workpiece, and the workpiece is fixed between the clamping jaw and the ejector rod. The sliding ejector rod can fix workpieces with different lengths and can meet the fixing requirement of workpieces with the lengths of 100mm-800 mm.
The technical solution of the present invention is further described in detail by the accompanying drawings and examples.
Drawings
Fig. 1 is a schematic structural view of an embodiment of a workpiece positioning device for a lathe according to the present invention;
fig. 2 is a schematic structural view of a positioning mechanism of an embodiment of the workpiece positioning device for a lathe according to the present invention;
fig. 3 is a schematic cross-sectional view of an embodiment of the workpiece positioning device for a lathe according to the present invention.
Reference numerals
1. A tailstock; 2. a main shaft; 3. mounting holes; 4. a limiting seat; 5. a top rod; 6. a limiting plate; 7. a limiting block; 8. a chute; 9. carrying out top thread; 10. a positioning part; 11. a limiting part.
Detailed Description
Examples
Fig. 1 is the utility model relates to a structural schematic diagram of work piece positioner for lathe embodiment, fig. 2 is the utility model relates to a positioning mechanism structural schematic diagram of work piece positioner for lathe embodiment, fig. 3 is the utility model relates to a cross-sectional structure schematic diagram of work piece positioner for lathe embodiment. As shown in the figure, the workpiece positioning device for the lathe comprises a limiting seat 4, wherein a through hole penetrating through the limiting seat 4 is formed in the middle of the limiting seat 4, and the through hole is coaxial with the limiting seat 4. The inside of through-hole is provided with ejector pin 5, ejector pin 5 and spacing seat 4 sliding connection. The aperture of the through hole is slightly larger than the diameter of the mandril 5, so that the mandril 5 can freely slide in the through hole.
The limiting seat 4 is of a step-type structure comprising a positioning part 10 and a limiting part 11, the positioning part 10 and the limiting part 11 are of an integral structure and are made of metal materials. The outer surface of the limiting part 11 is a conical surface, the size of the end of the limiting part 11 close to the positioning part 10 is larger than that of the other end, and the taper of the conical surface is 5 degrees.
The positioning part 10 is provided with a threaded hole which enables the jackscrew 9 to penetrate through and is matched with the jackscrew 9, and the jackscrew 9 penetrates through the threaded hole to be tightly propped against the surface of the ejector rod 5 to fix the ejector rod 5 and the positioning part 10. The length of the mandril 5 extending out of the positioning part 10 can be adjusted by loosening the jackscrew 9, so that workpieces with different lengths can be tightly pushed.
The middle part of a main shaft 2 arranged on the tailstock 1 is provided with a mounting hole 3, the mounting hole 3 is coaxial with the main shaft 2, and the main shaft 2 and a chuck on a lathe synchronously rotate. The limiting part 11 is inserted in the mounting hole 3, a conical surface matched with the conical surface of the limiting part 11 is arranged on the side wall of the end head of the mounting hole 3, and the ejector rod 5 is limited through the conical surface of the limiting part 11 and the conical surface of the mounting hole 3.
One end of the ejector rod 5 located in the mounting hole 3 is provided with a limiting plate 6, the limiting plate 6 is fixedly connected with the ejector rod 5, and the diameter of the limiting plate 6 is larger than the aperture of the through hole of the limiting seat 4. Be provided with spout 8 on the lateral wall of mounting hole 3, be provided with the slider with 8 looks adaptations of spout on the limiting plate 6, the slider is located spout 8, slider and 8 sliding connection of spout. Limiting plate 6 is last to be provided with two stopper 7 at least, stopper 7 evenly distributed on limiting plate 6. The diameter of the circumference that stopper 7 encloses slightly is less than the diameter of spout 8 for stopper 7 can be free slide in spout 8, and still have limiting displacement to ejector pin 5, avoid ejector pin 5 to take place great rocking at the in-process of the tight work piece in top. The sliding chute 8 and the limiting block 7 have a guiding function on the sliding of the ejector rod 5. The double limiting of the ejector rod 5 is realized through the conical surface of the limiting part 11 and the limiting plate 6, and the stability of the ejector rod 5 for tightly pushing a workpiece is improved.
The sliding groove 8 is of a dovetail groove structure, the limiting block 7 is of a dovetail tenon structure, the stability of synchronous rotation of the main shaft 2 and the ejector rod 5 is improved, and the stability of the ejector rod 5 for jacking a workpiece can be improved.
When the clamping jaw is used, the length of the ejector rod 5 is adjusted through the ejector thread 9, so that the end head of the ejector rod 5 is tightly pressed against the end face of a workpiece, and the workpiece is fixed between the clamping jaw and the ejector rod 5. The sliding ejector rod 5 can fix workpieces with different lengths and can meet the fixing requirement of the workpieces with the lengths of 100mm-800 mm.
Therefore, the utility model adopts the above structure's workpiece positioning device for the lathe can realize the fixed to the work piece at great within range, and adaptability is better.
The above are specific embodiments of the present invention, but the scope of protection of the present invention should not be limited thereto. Any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention, and therefore, the protection scope of the present invention is subject to the protection scope defined by the claims.
Claims (6)
1. The utility model provides a work piece positioner for lathe which characterized in that: the device comprises a limiting seat, wherein a through hole penetrating through the limiting seat is formed in the middle of the limiting seat, and a mandril is arranged in the through hole and is in sliding connection with the limiting seat; the middle part of a main shaft arranged on the tailstock is provided with a mounting hole, a limiting seat is inserted in the mounting hole, and one end of the ejector rod in the mounting hole is provided with a limiting plate;
spacing seat is the notch cuttype structure including location portion and spacing portion, and spacing portion is located the inside of mounting hole, and the surface of spacing portion is the conical surface, and the size that spacing portion is close to location portion end is greater than the size of the other end, is provided with the conical surface looks adaptation of spacing portion on the lateral wall of mounting hole.
2. The workpiece positioning device for a lathe according to claim 1, wherein: the positioning part is provided with a threaded hole which enables the jackscrew to penetrate through and be matched with the jackscrew, and the jackscrew penetrates through the threaded hole and is tightly propped against the surface of the ejector rod to realize the fixation of the ejector rod and the positioning part.
3. The workpiece positioning device for a lathe according to claim 1, wherein: the side wall of the mounting hole is provided with a sliding groove, the limiting plate is provided with a sliding block matched with the sliding groove, the sliding block is located in the sliding groove, and the sliding block is connected with the sliding groove in a sliding mode.
4. A workpiece positioning device for a lathe as set forth in claim 3, wherein: the limiting plate is at least provided with two limiting blocks, and the limiting blocks are uniformly distributed on the limiting plate.
5. A workpiece positioning device for a lathe as set forth in claim 3, wherein: the sliding groove is of a dovetail groove structure, and the limiting block is of a dovetail tenon structure.
6. The workpiece positioning device for a lathe according to claim 1, wherein: the taper of the conical surface of the limiting part is 5 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021341612.4U CN212665537U (en) | 2020-07-09 | 2020-07-09 | Workpiece positioning device for lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021341612.4U CN212665537U (en) | 2020-07-09 | 2020-07-09 | Workpiece positioning device for lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212665537U true CN212665537U (en) | 2021-03-09 |
Family
ID=74838509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021341612.4U Active CN212665537U (en) | 2020-07-09 | 2020-07-09 | Workpiece positioning device for lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212665537U (en) |
-
2020
- 2020-07-09 CN CN202021341612.4U patent/CN212665537U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN210790045U (en) | Angle-adjustable inclined hole drilling clamp | |
| CN203184702U (en) | Drill jig with fast rotating template | |
| CN201115881Y (en) | Cutter for drill lathe | |
| CN212665537U (en) | Workpiece positioning device for lathe | |
| CN207170988U (en) | A kind of adjustable multifunction hydraulic fixture of numerically controlled lathe | |
| CN211028137U (en) | Clamp for machining machinery casting of lathe | |
| CN206839207U (en) | A kind of Automatic Lathe feeding clamping device | |
| CN208991812U (en) | A kind of puncher fixture with self centering function | |
| CN210703642U (en) | Shaft end distance processing length adjusting device for lathe | |
| CN111842962A (en) | Tool clamping device for boring special-shaped hole | |
| CN207564388U (en) | A kind of round spanner | |
| CN203599930U (en) | Workpiece clamping device | |
| CN206215976U (en) | A kind of counterbore counterbit | |
| CN207942070U (en) | A kind of center lathe threading tool | |
| CN211413652U (en) | Loading attachment is used in lathe processing | |
| CN209774062U (en) | Rotatable variable-angle clamping device | |
| CN220698447U (en) | Thread machining tool | |
| CN213560088U (en) | Twist drill with handle of a knife extension structure | |
| CN209255898U (en) | A kind of tooling to workpiece rat holing | |
| CN213319010U (en) | Tool for quickly drilling elliptical head | |
| CN209716539U (en) | Electric tool screw thread drill chuck | |
| CN212946678U (en) | Transverse moving positioning device for metal forming machine tool | |
| CN203901184U (en) | Wrench for machine tool chuck | |
| CN210756537U (en) | Clamping device for piston machining | |
| CN220128149U (en) | Special tool for turning of excircle eccentric workpiece |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |