CN212665610U - Clamp for accurately grinding excircle - Google Patents
Clamp for accurately grinding excircle Download PDFInfo
- Publication number
- CN212665610U CN212665610U CN202020956780.8U CN202020956780U CN212665610U CN 212665610 U CN212665610 U CN 212665610U CN 202020956780 U CN202020956780 U CN 202020956780U CN 212665610 U CN212665610 U CN 212665610U
- Authority
- CN
- China
- Prior art keywords
- hollow shaft
- expansion sleeve
- base
- screw
- pull rod
- 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
- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model discloses an excircle correct grinding anchor clamps for clamping tubulose work piece, include: the main body mechanism comprises a clamp body and a positioning disc, the clamp body comprises a base, a hollow shaft is arranged on the base, the circumferential surface of the head part of the hollow shaft is a forward conical inclined surface, and the positioning disc penetrates through the hollow shaft and then is fixed on the base; the inner diameter tensioning mechanism comprises an expansion sleeve, a workpiece is sleeved on the expansion sleeve, the expansion sleeve is arranged between the positioning disc and the hollow shaft, and the inner side surface of the head part of the expansion sleeve is an inclined surface matched with the conical inclined surface of the head part of the hollow shaft; the end face pressing mechanism comprises a pull rod, the pull rod penetrates through the hollow shaft, the head of the pull rod is an inverted cone-shaped boss, the tail of the pull rod is connected with a driving mechanism, a pressing block is further arranged between the workpiece and the boss, the pressing block is of a full-section petal-shaped structure, a bundling elastic piece is arranged on the outer circumference of the pressing block, and the circumferential surface of the inner side of the head of the pressing block is an inclined plane matched with. The utility model provides a spline housing that appears among the prior art is thinner, and the interior external grinding adds the easy problem that appears warping, outer cylindrical roundness can not reach the requirement of grinding the back man-hour.
Description
Technical Field
The utility model belongs to the processing of peripheral milling, in particular to excircle correct grinding anchor clamps.
Background
Along with the increasingly complex pluralism of the newly-developed spline housing structure in market, the precision requirement is higher and higher, and especially the excircle precision of some special thin wall spline housings is higher and higher relative to the precision of internal spline. Because the internal spline is out of shape after the heat treatment bigger, generally earlier internal grinding spline path, then internal expanding spline path grinds the excircle, because the spline housing is thinner, during internal expanding spline path, the part produces the deformation easily on anchor clamps, produces the excircle deformation when the excircle grinds the end part and takes out from anchor clamps to make the circularity of excircle can not satisfy the requirement. Therefore, an external grinding clamp is required to be designed, which has accurate part centering and does not deform the excircle.
SUMMERY OF THE UTILITY MODEL
The utility model discloses spline housing to appear among the prior art is thinner, and the internal and external mill adds the problem that appears warping easily, external mill back excircle circularity can not reach the requirement, provides an excircle finish grinding anchor clamps.
Technical content
An outer circle fine grinding clamp for clamping a tubular workpiece, comprising: the main body mechanism comprises a clamp body and a positioning disc, the clamp body comprises a base, a hollow shaft is arranged on the base, the circumferential surface of the head of the hollow shaft is a forward conical inclined surface, and the positioning disc penetrates through the hollow shaft and then is fixed on the base; the inner diameter tensioning mechanism comprises an expansion sleeve, a workpiece is sleeved on the expansion sleeve, the expansion sleeve is arranged between the positioning disc and the hollow shaft, and the inner side surface of the head part of the expansion sleeve is an inclined surface matched with the conical inclined surface of the head part of the hollow shaft; end face hold-down mechanism, including the pull rod, the pull rod is worn to establish in the hollow shaft, the head is back taper boss, end connection actuating mechanism, still is equipped with the power briquetting between work piece and boss, the power briquetting is equipped with for full section lamella column structure, outer circumference and ties up the elastic component, the inboard periphery of head be with boss assorted inclined plane.
Further: the expansion sleeve is connected with the connecting plate through a screw A, the expansion sleeve and the connecting plate are respectively located on two sides of the base, the screw A penetrates through the base, a groove is formed in the opposite surface of the connecting plate and the base, and a spring is placed in the groove.
Further: the base is provided with a shaft sleeve at the position of the screw A, and the screw A penetrates through the shaft sleeve.
Further: and a disc spring is also arranged between the power pressing block and the end surface of the hollow shaft.
Further: and a regulating pad is also arranged between the disc spring and the end surface of the hollow shaft.
Further: the rear end face of the clamp body is fixedly connected with the connecting disc, the driving mechanism penetrates through the connecting disc and comprises a push rod and a connecting rod which are sequentially connected to the tail portion of the pull rod, and the other end of the connecting rod is connected with a machine tool.
Further: the connecting disc circumference is provided with the counter bore along radial, be equipped with screw B in the counter bore, the push rod circumference corresponds screw B position, is equipped with the spout along the axial, spout width and screw B size phase-match, screw B extends to in the spout.
Further: the gas hole at the starting end of the gas channel is arranged on the positioning disc and corresponds to the contact position of the gas hole and the workpiece.
Advantageous effects
1. By arranging the inner diameter tensioning mechanism and the end face pressing mechanism, the workpiece can be clamped and prevented from deforming during processing;
2. the small diameter of the part spline is centered by the cooperation of the petal-shaped spring expansion sleeve and the conical surface driven by the thrust of the spring, so that the position precision of the part during processing is enhanced;
3. the valve-shaped power pressing block is driven by the pulling force of the machine tool pull rod to be matched with the conical surface of the pull rod, so that the power pressing block is opened to the size of the end face of the part, and the end face of the part is pressed to carry out cylindrical grinding;
4. the rotation of the push rod during processing is prevented through the matching of the screw B and the sliding groove;
5. through setting up the air flue, conveniently cooperate airtight detection mechanism to detect the compactness of work piece and positioning disk contact.
Drawings
Fig. 1 is a sectional view of an outer circle fine grinding jig.
Fig. 2 is a sectional view of an upper half of an outer circle finishing jig.
Fig. 3 is a lower half sectional view of an outer circle finishing jig.
Detailed Description
Embodiments are shown in fig. 1 to 3, and an outer circle fine grinding jig for clamping a tubular workpiece 1 includes:
the main body mechanism 2 comprises a clamp body 21 and a positioning disc 22, the clamp body 21 comprises a base 211, a hollow shaft 212 is arranged on the base 211, the circumferential surface of the head of the hollow shaft 212 is a positive conical inclined surface, the positioning disc 22 penetrates through the hollow shaft 212 and then is fixed on the base 211, and the rear end face of the clamp body 21 is fixedly connected with the connecting disc 6;
the inner diameter tensioning mechanism 3 comprises an expansion sleeve 31, a workpiece 1 is sleeved on the expansion sleeve 31, the expansion sleeve 31 is arranged between the positioning plate 22 and the hollow shaft 212, the inner side surface of the head of the hollow shaft 212 is an inclined surface matched with a conical inclined surface at the head of the hollow shaft 212, the expansion sleeve 31 is connected with a connecting plate 33 through a screw A32, the expansion sleeve 31 and the connecting plate 33 are respectively positioned at two sides of the base 211, a screw A32 penetrates through a shaft sleeve 36 arranged at the position of the base 211 at the screw A32, the screw A32 can move in the shaft sleeve 36, a groove 34 is formed in the opposite surface of the connecting plate 33 and the base 211, a spring 35 is placed in the groove 34, and;
the end face pressing mechanism 4 comprises a pull rod 41, the pull rod 41 is arranged in the hollow shaft 212 in a penetrating mode, the head portion of the pull rod is an inverted cone-shaped boss 411, the tail portion of the pull rod is connected with the driving mechanism 5, a pressing block 42 is further arranged between the workpiece 1 and the boss 411, the pressing block 42 is of a full-section petal-shaped structure, a bundling elastic piece 43 is arranged on the outer circumference of the pressing block 42, the circumferential surface of the inner side of the head portion is an inclined surface matched with the boss 411, a disc spring 44 is further arranged between the pressing block 42 and the end face of the hollow shaft;
the driving mechanism 5 penetrates through the connecting disc 6 and comprises a push rod 51 and a connecting rod 52 which are sequentially connected to the tail of the pull rod 41, the other end of the connecting rod 52 is connected with a machine tool, a counter bore 61 is radially arranged on the circumference of the connecting disc 6, a screw B62 is arranged in the counter bore 61, a sliding groove 511 is axially arranged at the position, corresponding to the position of a screw B62, of the circumference of the push rod 51, the width of the sliding groove 511 is matched with the size of a screw B62, and the screw B62 extends into the sliding groove 511 to prevent the;
air holes at the starting end of the air passage 7 are formed in the positioning disc 22 and correspond to the contact position of the workpiece 1, and air holes at the tail end of the air passage 7 are matched with an air tightness detection mechanism and used for detecting the tightness of the contact position of the workpiece 1 and the positioning disc 22.
When the device works, firstly, the pull rod 41 is in a loosening state, the expansion sleeve 31 is pulled outwards appropriately to sleeve the workpiece 1 on the expansion sleeve 31, and then the expansion sleeve 31 and the hollow shaft 212 move relatively in a matched inclined plane under the pushing of the spring 35, so that the workpiece 1 is tensioned; then the extension rod 52 drives the push rod 51 and the pull rod 41 to act in sequence under the driving of the machine tool, the pull rod 41 compresses the pressing block 42, the pressing block 42 is of a full-petal structure, and the elastic part 43 is also bound outside the pressing block 42, so that the petals of the pressing block 42 radially move under the action of pressure and compress the end surface of the workpiece 1, the disc spring 44 and the adjusting pad 45 which are arranged between the pressing block 42 and the end surface of the hollow shaft 212 can realize the damping effect when the workpiece 1 is processed, and the processing stability and precision are further ensured; after the machining is completed, the push rod 51 is released, and the workpiece 1 is taken out.
Claims (8)
1. The utility model provides an excircle correct grinding anchor clamps for clamping tubulose work piece (1), its characterized in that includes:
the main body mechanism (2) comprises a clamp body (21) and a positioning disc (22), the clamp body (21) comprises a base (211), a hollow shaft (212) is arranged on the base (211), the circumferential surface of the head of the hollow shaft (212) is a forward conical inclined plane, and the positioning disc (22) penetrates through the hollow shaft (212) and then is fixed on the base (211);
the inner diameter tensioning mechanism (3) comprises an expansion sleeve (31), the workpiece (1) is sleeved on the expansion sleeve (31), the expansion sleeve (31) is arranged between the positioning disc (22) and the hollow shaft (212), and the inner side surface of the head part of the expansion sleeve is an inclined surface matched with the conical inclined surface of the head part of the hollow shaft (212);
end face hold-down mechanism (4), including pull rod (41), pull rod (41) are worn to establish in hollow shaft (212), the head is back taper boss (411), afterbody connection actuating mechanism (5), still are equipped with briquetting (42) between work piece (1) and boss (411), briquetting (42) are equipped with for full section lamella column structure, outer circumference and tie up elastic component (43), the inboard periphery of head for with boss (411) assorted inclined plane.
2. The outer circle fine grinding clamp according to claim 1, wherein the expansion sleeve (31) is connected with the connecting plate (33) through a screw A (32), the expansion sleeve (31) and the connecting plate (33) are respectively arranged on two sides of the base (211), the screw A (32) penetrates through the base (211), a groove (34) is formed in the surface, opposite to the base (211), of the connecting plate (33), and a spring (35) is placed in the groove (34).
3. An outer circle grinding jig according to claim 2, wherein the base (211) is provided with a boss (36) at a position of the screw a (32), and the screw a (32) passes through the boss (36).
4. The cylindrical lapping jig of claim 1, wherein a disc spring (44) is further provided between the pressing block (42) and the end surface of the hollow shaft (212).
5. The outer circle grinding jig according to claim 4, wherein a regulating pad (45) is further provided between the disc spring (44) and the end surface of the hollow shaft (212).
6. The outer circle fine grinding clamp according to claim 1, wherein the rear end face of the clamp body (21) is fixedly connected with the connecting disc (6), the driving mechanism (5) penetrates through the connecting disc (6) and comprises a push rod (51) and a connecting rod (52) which are sequentially connected to the tail portion of the pull rod (41), and the other end of the connecting rod (52) is connected with a machine tool.
7. The outer circle fine grinding clamp according to claim 6, wherein the connecting disc (6) is provided with a counter bore (61) along the radial direction along the circumference, a screw B (62) is arranged in the counter bore (61), the push rod (51) is provided with a sliding groove (511) along the axial direction along the circumference corresponding to the position of the screw B (62), the width of the sliding groove (511) is matched with the size of the screw B (62), and the screw B (62) extends into the sliding groove (511).
8. The outer circle grinding jig according to claim 1, further comprising an air passage (7), wherein an air hole at the beginning of the air passage (7) is provided on the positioning plate (22) corresponding to the contact position with the workpiece (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020956780.8U CN212665610U (en) | 2020-05-31 | 2020-05-31 | Clamp for accurately grinding excircle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020956780.8U CN212665610U (en) | 2020-05-31 | 2020-05-31 | Clamp for accurately grinding excircle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212665610U true CN212665610U (en) | 2021-03-09 |
Family
ID=74812971
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020956780.8U Active CN212665610U (en) | 2020-05-31 | 2020-05-31 | Clamp for accurately grinding excircle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212665610U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579279A (en) * | 2021-08-10 | 2021-11-02 | 贺尔碧格传动技术(常州)有限公司 | Clamping device for ring-shaped parts |
| CN114346937A (en) * | 2021-12-27 | 2022-04-15 | 日善电脑配件(嘉善)有限公司 | Clamping mechanism and clamping method |
| CN114939773A (en) * | 2022-06-07 | 2022-08-26 | 浙江欧迪恩传动科技股份有限公司 | Driving sleeve excircle machining method and internal spline clamp applied to same |
| CN116766056A (en) * | 2023-08-11 | 2023-09-19 | 无锡市海峰海林精密轴承有限公司 | Grinding clamp for swing rod bearing inner ring and use method thereof |
-
2020
- 2020-05-31 CN CN202020956780.8U patent/CN212665610U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113579279A (en) * | 2021-08-10 | 2021-11-02 | 贺尔碧格传动技术(常州)有限公司 | Clamping device for ring-shaped parts |
| CN113579279B (en) * | 2021-08-10 | 2022-06-24 | 贺尔碧格传动技术(常州)有限公司 | Clamping device for ring-shaped parts |
| CN114346937A (en) * | 2021-12-27 | 2022-04-15 | 日善电脑配件(嘉善)有限公司 | Clamping mechanism and clamping method |
| CN114346937B (en) * | 2021-12-27 | 2024-02-27 | 日善电脑配件(嘉善)有限公司 | Clamping mechanism and clamping method |
| CN114939773A (en) * | 2022-06-07 | 2022-08-26 | 浙江欧迪恩传动科技股份有限公司 | Driving sleeve excircle machining method and internal spline clamp applied to same |
| CN114939773B (en) * | 2022-06-07 | 2024-03-12 | 浙江欧迪恩传动科技股份有限公司 | Outer circle machining method of driving sleeve and internal spline clamp applied to method |
| CN116766056A (en) * | 2023-08-11 | 2023-09-19 | 无锡市海峰海林精密轴承有限公司 | Grinding clamp for swing rod bearing inner ring and use method thereof |
| CN116766056B (en) * | 2023-08-11 | 2024-05-07 | 无锡市海峰海林精密轴承有限公司 | Grinding clamp for swing rod bearing inner ring and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212665610U (en) | Clamp for accurately grinding excircle | |
| CN106965087A (en) | Mill automatic fixture and its application method outside friction Wedge-type | |
| CN112008461A (en) | Tool clamp for machining thin-wall workpiece | |
| CN107127619A (en) | A kind of hot post-processing recessing fixture of high-precise synchronization device gear ring | |
| CN103072078B (en) | A kind of blade processing self adaptation clamping tool and clamping means thereof | |
| CN111390211A (en) | Chuck structure for rapidly clamping shaft workpieces | |
| CN201799635U (en) | Jig of machine tool for internally centring and compacting at end surfaces | |
| CN206185558U (en) | Same internal hole positioning and closing device | |
| CN210046020U (en) | Internal spline core expansion type machine tool fixture | |
| CN201922347U (en) | Clamp for grinding outer surface of bearing | |
| CN208483334U (en) | A kind of arc-shaped part cutting thread fixture | |
| WO2023045112A1 (en) | Non-circular workpiece driving fixture for machine tool machining | |
| CN216226989U (en) | Spline internal expanding machine tool clamp with good reliability | |
| CN215967503U (en) | Inner hole positioning and holding device | |
| CN215509036U (en) | Elastic expansion clamping device for concentric machining of lathe | |
| CN213004352U (en) | Lens pad flange sealing surface grinding device | |
| CN204868451U (en) | Thin wall part external grinding equipment for motor | |
| CN212217126U (en) | Chuck structure for rapidly clamping shaft workpieces | |
| CN210967904U (en) | Machine tool clamp | |
| CN210475592U (en) | Inner hole positioning workpiece and expanding device | |
| CN209754048U (en) | Modularization chuck | |
| CN217194719U (en) | Turning and grinding inner hole and molded surface clamp for air valve clamping block type parts | |
| CN214444775U (en) | Clamp suitable for annular thin-wall workpiece | |
| CN219666227U (en) | Grinder headstock | |
| CN207043964U (en) | Automatic fixture is ground outside one kind friction Wedge-type |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |