CN210255238U - Workpiece positioning device - Google Patents
Workpiece positioning device Download PDFInfo
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- CN210255238U CN210255238U CN201921250854.XU CN201921250854U CN210255238U CN 210255238 U CN210255238 U CN 210255238U CN 201921250854 U CN201921250854 U CN 201921250854U CN 210255238 U CN210255238 U CN 210255238U
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- positioning
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- clamping
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Abstract
The utility model relates to a work piece positioner. The workpiece positioning device comprises a processing shaft, a positioning frame and a clamping cylinder, one end of the positioning frame is fixedly arranged in the processing shaft, the positioning frame comprises a positioning disc, a positioning cylinder, a positioning stud and a clamping cone, one end of the positioning disc forms a workpiece positioning surface, the positioning cylinder is convexly arranged at one end, deviating from the workpiece positioning surface, of the positioning disc, a plurality of clamping fins are arranged on the circumferential surface of the positioning cylinder, the positioning stud penetrates through the positioning disc and the positioning cylinder, the clamping cone is screwed on the positioning stud and tightly abuts against one end, far away from the positioning disc, of the positioning cylinder, so that the positioning cylinder drives the clamping fins to be opened to be fixed in the processing shaft, and a plurality of slots are formed in the clamping cylinder. The workpiece positioning device has higher positioning precision on the annular workpiece made of the copper material.
Description
Technical Field
The utility model relates to a work piece positioner.
Background
In industrial production, it is often necessary to position a workpiece with a jig. For example, a tapered cylinder is movably disposed in a cylinder portion of a processing shaft, and a work in the tapered cylinder is tightened by retracting the tapered cylinder, but when the work is clamped, the tapered cylinder is retracted while being retracted, so that the work moves in an axial direction with respect to the processing shaft, and positioning accuracy is poor.
SUMMERY OF THE UTILITY MODEL
Accordingly, it is necessary to provide a workpiece positioning apparatus having high positioning accuracy.
A workpiece positioning device comprises a positioning frame and a clamping barrel, wherein one end of the positioning frame is fixedly arranged in a processing shaft of a machine tool, the positioning frame comprises a positioning disc, a positioning barrel, a positioning stud and a pressing cone, one end of the positioning disc forms a workpiece positioning surface, the positioning barrel is convexly arranged at one end of the positioning disc, which is far away from the workpiece positioning surface, a plurality of pressing fins are arranged on the circumferential surface of the positioning barrel, the positioning stud penetrates through the positioning disc and the positioning barrel, the pressing cone is screwed on the positioning stud and tightly pressed against one end, which is far away from the positioning disc, of the positioning barrel, so that the positioning barrel drives the pressing fins to expand outwards to be tightly fixed in the processing shaft, a plurality of slots are formed in the clamping barrel, the clamping barrel is sleeved on the positioning frame, so that the pressing fins respectively penetrate through the slots, the clamping cylinder is movably arranged in the processing shaft in a penetrating mode along the axial direction, and the clamping cylinder is used for compressing along the radial direction of the clamping cylinder to abut against and position the annular workpiece on the workpiece positioning surface.
In one embodiment, the positioning disc is concavely provided with a mounting groove, the bottom surface of the mounting groove is provided with a through hole in a penetrating manner, and the positioning stud is arranged in the through hole in a penetrating manner.
In one embodiment, a driving head is arranged at the end part of the positioning stud, the driving head is accommodated in the mounting groove of the positioning disc, and a driving groove is concavely arranged on the driving head.
In one embodiment, a threaded section is formed at one end of the positioning stud, which is far away from the driving head, a threaded hole is formed in the middle of the tightening cone, and the threaded section is screwed in the threaded hole of the tightening cone.
In one embodiment, a tightening conical surface is formed on the tightening cone, a matching conical surface is formed on the inner peripheral surface of one end, away from the positioning disc, of the positioning cylinder, and the tightening conical surface is tightened on the matching conical surface.
In one embodiment, the positioning cylinder is provided with a plurality of through grooves, the through grooves are uniformly arranged along the circumferential surface of the positioning cylinder at intervals, and each abutting wing is located between two adjacent through grooves.
In one embodiment, the through groove extends along the axial direction of the positioning cylinder, and the through groove penetrates through one end of the positioning cylinder far away from the positioning disk.
In one embodiment, the clamping cylinder comprises a clamping ring part and a cylinder part, a tapered conical ring part is formed at one end of the clamping ring part, and the cylinder part is arranged on the tapered conical ring part in a protruding mode.
In one embodiment, the clamping ring portion is disposed around the positioning disk, the plurality of slots penetrate the clamping ring portion and the tapered collar portion and extend onto the barrel portion, and an inner diameter of the clamping ring portion is larger than an inner diameter of the barrel portion.
In one embodiment, a stopping end is formed at one end of each slot away from the clamping ring portion, one end of each abutting wing abuts against the stopping end, and a radial protruding end is formed at the other end of each abutting wing and abuts against the end portion of the machining shaft.
When the workpiece positioning device is used, the annular workpiece made of the copper material is clamped into the clamping cylinder, and then force is applied to the clamping cylinder, so that the clamping cylinder is radially compressed along the clamping cylinder to tightly press and position the periphery of the annular workpiece made of the copper material on the workpiece positioning surface. The plurality of abutting fins are made to be outwards opened and abutted in the processing shaft in advance before the workpiece is clamped, so that the positioning frame is fixed relative to the processing shaft, the annular copper workpiece on the positioning disc cannot axially displace relative to the processing shaft, and compared with the traditional axial movement clamping action, the workpiece positioning device can fix the axial position of the annular workpiece made of the copper material relative to the processing shaft and cannot axially move, so that the product positioning precision is improved, and the subsequent processing precision of the annular workpiece made of the copper material is improved. Furthermore, the workpiece positioning device can accurately position the clamped length of the workpiece, so that the machining precision of the product is improved; and rely on the tapering centre gripping, need not use the pin, rely on frictional force to position the tight cone of holding. The clamp is not influenced by the outer diameter of the workpiece, clamping and positioning are realized, and the parallelism of workpiece positioning is high.
Drawings
Fig. 1 is a schematic perspective view of a workpiece positioning device according to an embodiment.
Fig. 2 is a perspective view of another perspective view of the workpiece positioning device shown in fig. 1.
Fig. 3 is an exploded perspective view of the workpiece positioning device shown in fig. 1.
Fig. 4 is an exploded perspective view of the workpiece positioning device of fig. 1 from another perspective.
Detailed Description
In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
The utility model relates to a work piece positioner. For example, the workpiece positioning device comprises a positioning frame and a clamping cylinder, one end of the positioning frame is fixedly arranged in a processing shaft of a machine tool, and the positioning frame comprises a positioning disc, a positioning cylinder, a positioning stud and a butting cone. For example, one end of the positioning disc forms a workpiece positioning surface, the positioning cylinder is convexly arranged at one end of the positioning disc, which is deviated from the workpiece positioning surface, and the circumferential surface of the positioning cylinder is provided with a plurality of abutting fins. For example, the positioning stud penetrates through the positioning disc and the positioning cylinder, and the abutting cone is screwed on the positioning stud and abuts against one end of the positioning cylinder, which is far away from the positioning disc, so that the positioning cylinder drives the abutting fins to expand outwards to abut against and be fixed in the processing shaft. For example, a plurality of slots are formed in the clamping cylinder, the clamping cylinder is sleeved on the positioning frame, so that the plurality of abutting fins penetrate through the plurality of slots respectively, and the clamping cylinder penetrates through the processing shaft movably along the axial direction. For example, the clamping cylinder is used for compressing along the radial direction of the clamping cylinder to abut and position the annular workpiece on the workpiece positioning surface.
Referring to fig. 1 to 4, a workpiece positioning device includes a positioning frame 10 and a clamping cylinder 20, one end of the positioning frame 10 is fixedly disposed in a processing shaft of a machine tool, the positioning frame 10 includes a positioning disc 11, a positioning cylinder 12, a positioning stud 13 and a tightening cone 14, one end of the positioning disc 11 forms a workpiece positioning surface 115, the positioning cylinder 12 is convexly disposed at one end of the positioning disc 11 away from the workpiece positioning surface 115, a plurality of tightening fins 121 are disposed on a circumferential surface of the positioning cylinder 12, the positioning stud 13 is disposed through the positioning disc 11 and the positioning cylinder 12, the tightening cone 14 is screwed on the positioning stud 13 and tightened against one end of the positioning cylinder 12 away from the positioning disc 11, so that the positioning cylinder 12 drives the tightening fins 121 to open to be tightened in the processing shaft, a plurality of slots 21 are disposed on the clamping cylinder 20, the clamping cylinder 20 is sleeved on the positioning frame 10, so that the tightening fins 121 are respectively disposed through the slots 21, the clamping cylinder 20 is movably arranged in the processing shaft in an axial direction in a penetrating manner, and the clamping cylinder 20 is used for compressing along the radial direction of the clamping cylinder to abut against and position the annular workpiece on the workpiece positioning surface 115.
For example, the annular workpiece is an annular workpiece made of copper, and when the workpiece positioning device is used, the annular workpiece made of copper is clamped into the clamping cylinder 20, and then a force is applied to the clamping cylinder 20, for example, the clamping cylinder 20 is pushed inwards, so that the clamping cylinder 20 is compressed along the radial direction of the clamping cylinder 20 under the pressing of the peripheral edge of the machining shaft so as to abut against and position the peripheral edge of the annular workpiece made of copper on the workpiece positioning surface 115. Because make a plurality of fins 121 that support tightly outwards open and support tightly in the processing axle in advance before the clamping work piece, consequently make locating rack 10 fixed relative processing axle, and then make the copper product annular workpiece on the positioning disc 11 can not produce the ascending displacement of axial relative processing axle, for traditional axial displacement clamping action, the work piece positioner of this case can be fixed by the axial position of copper product annular workpiece relative processing axle, can not follow axial displacement, thereby improve product positioning accuracy, and improve the follow-up machining precision of copper product annular workpiece. For example, the workpiece positioning device can accurately position the clamped length of the workpiece, so that the machining precision of the product is improved; and rely on the tapering centre gripping, need not use the pin, rely on frictional force to position the tight cone of holding. The clamp is not influenced by the outer diameter of the workpiece, clamping and positioning are realized, and the parallelism of workpiece positioning is high.
For example, in order to prevent the rotation of the abutment cone 14, the positioning disc 11 is concavely provided with a mounting groove 111, a through hole is formed through the bottom surface of the mounting groove 111, and the positioning stud 13 is inserted into the through hole. The end of the positioning stud 13 is provided with a driving head 131, the driving head 131 is accommodated in the mounting groove 111 of the positioning disc 11, and the driving head 131 is provided with a driving groove 1315 in a concave manner. A threaded section is formed at one end of the positioning stud 13 far away from the driving head 131, a threaded hole 141 is formed in the middle of the abutting cone 14, and the threaded section is screwed in the threaded hole 141 of the abutting cone 14. The abutting cone 14 is formed with an abutting conical surface 142, an inner peripheral surface of one end of the positioning cylinder 12 far away from the positioning disc 11 is formed with a matching conical surface 122, and the abutting conical surface 142 abuts against the matching conical surface 122. The abutting conical surface 142 of the abutting cone 14 and the matching conical surface 122 in the positioning cylinder 12 are matched with each other, so that the positioning disc 11 is tightly abutted against each other, the positioning disc 11 is prevented from rotating relative to the clamping cylinder 20, namely the abutting cone 14 is prevented from rotating by utilizing the pulling force of the positioning stud 13 and the taper clamping without using a pin to penetrate through the abutting cone 14, and the abutting cone 14 can be prevented from rotating only by the friction force of the two conical surfaces. By the arrangement of the driving slot 1315, the positioning stud 13 can be conveniently rotated to screw and fix the abutting cone 14. In addition, the positioning of the annular workpiece is not influenced by the outer diameter of the workpiece, the clamping and positioning are realized, and the parallelism is high. The arrangement of the slot facilitates the positioning cylinder to move in the clamping cylinder.
For example, in order to fix the positioning cylinder 12 in the processing shaft, the positioning cylinder 12 is provided with a plurality of through grooves 123, the through grooves 123 are uniformly spaced along the circumferential surface of the positioning cylinder 12, and each abutting wing 121 is located between two adjacent through grooves 123. The through groove 123 extends in the axial direction of the positioning cylinder 12, and the through groove 123 penetrates through one end of the positioning cylinder 12 away from the positioning disk 11. The clamping cylinder 20 comprises a clamping ring part 24 and a cylinder part 25, wherein a tapered conical ring part 26 is formed at one end of the clamping ring part 24, and the cylinder part 25 is arranged on the tapered conical ring part 26 in a protruding mode. The clamping ring portion 24 is disposed around the positioning disk 11, the plurality of slots 21 penetrate the clamping ring portion 24 and the tapered collar portion 26 and extend onto the cylindrical portion 25, and the inner diameter of the clamping ring portion 24 is larger than that of the cylindrical portion 25. One end of each slot 21, which is far away from the clamping ring part 24, is formed with a stop end 215, one end of the abutting wing 121 abuts against the stop end 215, and the other end is formed with a radial protruding end 1218, and the radial protruding end 1218 abuts against the end of the machining shaft. For example, the copper material workpiece is an annular copper material workpiece, i.e., a copper ring. By arranging the radial protruding end 1218, the radial protruding end 1218 abuts against the processing shaft, and the other end of the abutting wing 121 expands outwards along with the positioning cylinder 12 after being stressed, so that the opposite ends or the whole of the abutting wing 121 abuts against and is fixed in the processing shaft. The clamping ring portion 24 is arranged to facilitate radial clamping of the annular workpiece around its periphery on the workpiece locating surface 115.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A workpiece positioning device is characterized by comprising a positioning frame and a clamping barrel, wherein one end of the positioning frame is fixedly arranged in a processing shaft of a machine tool, the positioning frame comprises a positioning disc, a positioning barrel, a positioning stud and a clamping cone, one end of the positioning disc forms a workpiece positioning surface, the positioning barrel is convexly arranged at one end of the positioning disc, which is far away from the workpiece positioning surface, the peripheral surface of the positioning barrel is provided with a plurality of clamping fins, the positioning stud is arranged in the positioning disc and the positioning barrel in a penetrating manner, the clamping cone is screwed on the positioning stud and is clamped at one end of the positioning barrel, which is far away from the positioning disc, so that the positioning barrel drives the clamping fins to expand outwards to be clamped and fixed in the processing shaft, the clamping barrel is provided with a plurality of slots, and the clamping barrel is sleeved on the positioning frame, the clamping cylinder is movably arranged in the processing shaft in an axial direction in a penetrating mode, and the clamping cylinder is used for compressing along the radial direction of the clamping cylinder to tightly position the annular workpiece on the workpiece positioning surface.
2. The workpiece positioning device according to claim 1, wherein a mounting groove is concavely formed on the positioning disc, a through hole is formed through the bottom surface of the mounting groove, and the positioning stud is inserted into the through hole.
3. The workpiece positioning device as recited in claim 2, wherein a driving head is disposed at an end of the positioning stud, the driving head is received in a mounting groove of the positioning disk, and a driving groove is recessed in the driving head.
4. The workpiece positioning device as recited in claim 3, wherein a threaded section is formed at one end of the positioning stud away from the driving head, a threaded hole is formed in the middle of the tightening cone, and the threaded section is screwed in the threaded hole of the tightening cone.
5. The workpiece positioning device as claimed in claim 4, wherein the abutting cone is formed with an abutting conical surface, an inner peripheral surface of one end of the positioning cylinder away from the positioning disc is formed with a fitting conical surface, and the abutting conical surface abuts against the fitting conical surface.
6. The workpiece positioning device according to claim 5, wherein the positioning cylinder is provided with a plurality of through grooves, the through grooves are uniformly spaced along the circumferential surface of the positioning cylinder, and each abutting wing is located between two adjacent through grooves.
7. The workpiece positioning device according to claim 6, wherein the through-groove extends in an axial direction of the positioning cylinder, and the through-groove penetrates through an end of the positioning cylinder away from the positioning disk.
8. The workpiece positioning device according to claim 7, wherein the clamping cylinder comprises a clamping ring portion and a cylinder portion, a tapered collar portion is formed at one end of the clamping ring portion, and the cylinder portion is protruded on the tapered collar portion.
9. The workpiece positioning device of claim 8, wherein the clamping ring portion is disposed around the positioning disk, the plurality of slots extend through the clamping ring portion and the tapered collar portion and onto the barrel portion, and an inner diameter of the clamping ring portion is greater than an inner diameter of the barrel portion.
10. The workpiece positioning device as set forth in claim 9, wherein an end of each of the slots remote from the clamping ring portion is formed with a stopper end, one end of the tightening wing abuts against the stopper end, and the other end is formed with a radially protruding end abutting against an end of the machining shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921250854.XU CN210255238U (en) | 2019-08-03 | 2019-08-03 | Workpiece positioning device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921250854.XU CN210255238U (en) | 2019-08-03 | 2019-08-03 | Workpiece positioning device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210255238U true CN210255238U (en) | 2020-04-07 |
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ID=70016203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921250854.XU Expired - Fee Related CN210255238U (en) | 2019-08-03 | 2019-08-03 | Workpiece positioning device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210255238U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113601227A (en) * | 2021-07-06 | 2021-11-05 | 龙口市亨嘉智能装备有限公司 | Multi-stage positioning device for polygon workpiece |
| CN115090747A (en) * | 2022-07-25 | 2022-09-23 | 信尔胜机械（江苏）有限公司 | Integrated punching processing equipment for compressor shell |
-
2019
- 2019-08-03 CN CN201921250854.XU patent/CN210255238U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113601227A (en) * | 2021-07-06 | 2021-11-05 | 龙口市亨嘉智能装备有限公司 | Multi-stage positioning device for polygon workpiece |
| CN113601227B (en) * | 2021-07-06 | 2024-03-12 | 龙口市亨嘉智能装备有限公司 | Multi-stage positioning device for polygonal workpiece |
| CN115090747A (en) * | 2022-07-25 | 2022-09-23 | 信尔胜机械（江苏）有限公司 | Integrated punching processing equipment for compressor shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200407 |