CN217860355U - Tool structure for grinding inner hole of shaft sleeve part - Google Patents
Tool structure for grinding inner hole of shaft sleeve part Download PDFInfo
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- CN217860355U CN217860355U CN202221986649.1U CN202221986649U CN217860355U CN 217860355 U CN217860355 U CN 217860355U CN 202221986649 U CN202221986649 U CN 202221986649U CN 217860355 U CN217860355 U CN 217860355U
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Abstract
The utility model relates to a shaft sleeve part grinds frock structure for hole belongs to automotive transmission gear abrasive machining technical field. The technical scheme is as follows: the pull rod (1) is connected with a machine tool pull rod, a spring (13) is sleeved on a tip (12), a rear plug (11) is in threaded connection with one cylindrical end of the tip (12), the cylindrical end of the rear plug and the cylindrical end of the tip are arranged in a central hole of a flange and a central hole of a pull sleeve, and a conical surface of the tip is propped against the end part of a workpiece; the pull sleeve (5) is inserted into a round hole of the main body (7), the elastic chuck (8) is inserted into a conical hole of the main body (7), the pull sleeve, the connecting disc and the pull rod are fastened together through a first hexagon socket head cap screw, the connecting disc is connected with one end of the main body through a second hexagon socket head cap screw, and the positioning disc is connected with the other end of the main body through a third hexagon socket head cap screw. The utility model has the advantages that: the grinding processing of axle sleeve class part hole in the realization is improved the reliability.
Description
Technical Field
The utility model relates to a shaft sleeve part grinds frock structure for hole belongs to automotive transmission gear abrasive machining technical field.
Background
The grinding processing of the inner hole of the transmission part is one of the most critical links in the production and the manufacture of the transmission, and plays a decisive role in whether the transmission can normally work in a finished automobile.
At present, when an inner hole of a part is ground, a clamping mechanism is realized by driving a clamping jaw through an elastic membrane. The shaft sleeve type part can swing when being processed and rotated, so that the processing precision can not be ensured, and errors can easily appear in the processing precision due to the fact that the elastic membrane is used for achieving the clamping effect.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a shaft sleeve type part grinds frock structure for hole realizes the abrasive machining to shaft sleeve type part hole in the derailleur, improves the reliability, solves the problem that exists among the background art.
The technical scheme of the utility model is that:
a tool structure for grinding inner holes of shaft sleeve type parts comprises a pull rod, a first inner hexagonal socket head cap screw, a spacer sleeve, a connecting disc, a pull sleeve, a main body, an elastic chuck, a positioning disc, a third inner hexagonal socket head cap screw, a rear plug, a tip and a spring, wherein the pull rod, the connecting disc, the main body and the positioning disc are sequentially arranged, the connecting disc is provided with a connecting disc center hole, and a plurality of inner holes matched with the spacer sleeve are formed in the circumferential direction of the connecting disc; the pull sleeve is in a hollow cylindrical shape, and a pull sleeve central hole is formed in the middle of the pull sleeve; the main body is provided with a first central hole, one end of the first central hole is a round hole matched with the excircle of the pull sleeve, and the other end of the first central hole is a conical hole; the outer surface of the elastic chuck is a conical surface matched with the conical hole, and the elastic chuck is provided with a second central hole matched with the outer diameter of the workpiece; one end of the centre is cylindrical and matched with the central hole of the flange, the other end of the centre is a conical surface matched with a workpiece, the spring is sleeved on the centre, the rear plug is in threaded connection with one cylindrical end of the centre, the rear plug and one cylindrical end of the centre are arranged in the central hole of the flange and the central hole of the pull sleeve, the plurality of spacer sleeves are respectively inserted into the inner hole of the flange, the pull sleeve is inserted into the circular hole of the main body, the elastic chuck is inserted into the conical hole of the main body, and the pull sleeve is clamped with the elastic chuck; the pull rod is connected with a machine tool pull rod, the pull sleeve is connected with the connecting disc and the pull rod through a first inner hexagonal socket head cap screw, two sides of the connecting disc are respectively connected with a machine tool main shaft and one end of the main body, and the other end of the main body is connected with the positioning disc through a third inner hexagonal socket head cap screw.
The outer surface of the elastic chuck is provided with an annular clamping groove in the circumferential direction, one side of the pull sleeve adjacent to the elastic chuck is provided with an annular boss, and the annular boss is clamped on the annular clamping groove of the elastic chuck.
The cylindrical one end of top is equipped with screw hole four, and back is stifled comprises disc and the cylinder of fixed company, is equipped with the external screw thread with screw hole assorted on the cylinder.
The diameter of the disc is larger than the aperture of the central hole of the flange.
And a pull rod central hole communicated with the flange central hole is formed in the middle of the pull rod.
One side of the pull sleeve, which is far away from the elastic chuck, is provided with a plurality of step through holes, the outer circle of the pull rod is provided with a plurality of first bolt holes, and the first inner hexagonal socket head cap screw penetrates through the step through holes, the spacer bush and the first bolt holes in sequence.
The positioning disc is provided with a third central hole, and the workpiece enters the second central hole of the elastic chuck from the third central hole.
The outer circle of the flange is provided with a plurality of bolt holes II, the main body is a hollow cylinder, one end, adjacent to the flange, of the main body is provided with an annular boss, a bolt hole III is formed in the annular boss, and the inner hexagonal socket head cap screw II is arranged in the bolt hole II and the bolt hole III to fasten the flange and one end of the main body.
The inside diameter of the tapered hole is small, and the outside diameter is large.
Adopt the utility model discloses, during the use, pack into this frock with axle sleeve class work piece, press the work piece, make the top external conical surface of interior conical surface contact of work piece, nudge the work piece again and make workpiece end face and positioning disk end face contact, the spring was compressed this moment, and top external conical surface top prevents work piece afterbody radial displacement through top in the work piece. The machine tool is started, the machine tool pull rod drives the pull rod of the tool to move, the pull rod drives the pull sleeve and the elastic chuck to move inwards, the elastic chuck has elasticity, the inner diameter of the elastic chuck is gradually reduced along the tapered hole, the workpiece is clamped, and the coaxiality of the workpiece and the main body is ensured.
The beneficial effects of the utility model are that: the clamping device has the advantages that the workpiece can be conveniently and quickly clamped, the center provides radial support, the workpiece is prevented from being inclined and swinging during machining in the clamping process, the coaxiality of the workpiece and the main body is ensured by the elastic chuck, the positioning precision of the workpiece is ensured, and the quality and the yield of products are improved.
Drawings
FIG. 1 is an assembly view of the present invention;
FIG. 2 is a schematic view of the pull rod of the present invention;
FIG. 3 is a schematic view of the spacer of the present invention;
FIG. 4 is a schematic view of the receiving plate of the present invention;
FIG. 5 is a schematic view of the pull sleeve of the present invention;
FIG. 6 is a schematic view of the main body of the present invention;
fig. 7 is a schematic view of the collet of the present invention;
FIG. 8 is a schematic view of the positioning plate of the present invention;
fig. 9 is a schematic diagram of the rear plug of the present invention;
fig. 10 is a schematic view of the center of the present invention;
in the figure: the novel grinding wheel comprises a pull rod 1, a pull rod center hole 1-1, a bolt hole I1-2, a hexagon socket head cap screw I2, a spacer sleeve 3, a flange 4, a flange center hole 4-1, an inner hole 4-2, a bolt hole II 4-3, a pull sleeve 5, a step through hole 5-1, an annular bulge 5-2, a pull sleeve center hole 5-3, a hexagon socket head cap screw II 6, a main body 7, a round hole 7-1, a taper hole 7-2, a bolt hole III 7-3, an elastic chuck 8, an annular clamping groove 8-1, a center hole II 8-2, a positioning disc 9, a center hole III 9-1, a hexagon socket head cap screw III 10, a rear plug 11, an external thread 11-1, a tip 12, a threaded hole IV 12-1, a spring 13, a workpiece 14 and a grinding wheel 15.
Detailed Description
The invention will be further explained by way of example with reference to the accompanying drawings.
Referring to the attached drawings 1-10, the tool structure for grinding the inner hole of the shaft sleeve part comprises a pull rod 1, a first inner hexagonal socket head cap screw 2, a spacer sleeve 3, a connecting disc 4, a pull sleeve 5, a second inner hexagonal socket head cap screw 6, a main body 7, an elastic chuck 8, a positioning disc 9, a third inner hexagonal socket head cap screw 10, a rear plug 11, a tip 12 and a spring 13, wherein the pull rod 1, the connecting disc 4, the main body 7 and the positioning disc 9 are sequentially arranged from front to back. The middle part of the flange 4 is provided with a flange central hole 4-1, and four inner holes 4-2 are uniformly distributed in the circumferential direction of the flange 4. The pull sleeve 5 is hollow cylindrical, and a pull sleeve central hole 5-3 is formed in the middle of the pull sleeve 5; the main body 7 is provided with a first central hole, one end of the first central hole is a round hole 7-1 matched with the excircle of the pull sleeve 5, and the other end of the first central hole is a conical hole 7-2; the outer surface of the elastic chuck 8 is a conical surface matched with the conical hole 7-2, and the elastic chuck 8 is provided with a central hole II 8-2 matched with the workpiece 14. One end of the centre 12 is cylindrical and matched with the central hole 4-1 of the flange, the other end of the centre 12 is a conical surface matched with the workpiece 14, the spring 13 is sleeved on the centre 12, the rear plug 11 is in threaded connection with the cylindrical end of the centre 12, and the cylindrical ends of the rear plug 11 and the centre 12 are arranged in the central hole 4-1 of the flange and the central hole 5-3 of the pull sleeve. The four spacer bushes 3 are respectively inserted into inner holes 4-2 of the flange 4, the pull bush 5 is inserted into a round hole 7-1 of the main body 7, the elastic chuck 8 is inserted into a conical hole 7-2 of the main body 7, and the pull bush 5 and the elastic chuck 8 are clamped; the pull rod 1 is connected with a machine tool pull rod, the pull sleeve 5 is connected with the connecting disc 4 and the pull rod 1 through the first hexagon socket head cap screw 2, the front side and the rear side of the connecting disc 4 are respectively connected with a machine tool main shaft and one end of the main body 7, the other end of the main body 7 is connected with the positioning disc 9 through the third hexagon socket head cap screw 10, and the machine tool main shaft drives the whole tool to rotate.
In this example, referring to fig. 2, a central pull rod hole 1-1 is formed in the middle of the pull rod 1, and four bolt holes 1-2 are formed around the central pull rod hole 1-1.
Referring to the attached drawings 3 and 4, a flange 4 is provided with a flange central hole 4-1, four inner holes 4-2 matched with the spacer 3 are arranged in the circumferential direction of the flange 4, and a plurality of bolt holes two 4-3 are arranged in the outer circle of the flange 4 along the circumferential direction.
Referring to the attached drawings 5 and 6, the pull sleeve 5 is hollow cylindrical, a pull sleeve center hole 5-3 is formed in the middle of the pull sleeve 5, the front end of the pull sleeve 5 is of an annular structure with an opening, a plurality of step through holes 5-1 are formed in the side wall of the annular structure, an inward annular bulge 5-2 is formed in the inner wall of the rear end of the pull sleeve 5, the nut end of a first hexagon socket head cap screw 2 is arranged at the step through holes 5-1, and the conical surface of the tip is arranged in the pull sleeve center hole 5-3. A gap is reserved between the flange 4 and the pull sleeve 5, and the length of the spacer bush 3 is larger than the diameter of the inner hole 4-2. The main body 7 is a hollow cylinder, a first central hole is formed in the middle of the main body 7, one end of the first central hole is a round hole 7-1 matched with the outer circle of the pull sleeve 5, the other end of the central hole of the main body is a tapered hole 7-2, and the inner diameter of the tapered hole 7-2 is small while the outer diameter of the tapered hole is large. An outward annular boss is arranged at the front end of the main body 7, a bolt hole III 7-3 is arranged on the annular boss, and a second hexagon socket head cap screw 6 is arranged in the bolt hole II 4-3 and the bolt hole III 7-3 to fasten the pull sleeve 5 and the main body 7.
Referring to fig. 7, the collet 8 is of an annular structure, the outer ring of the collet 8 is a conical surface matched with the tapered hole 7-2, and the outer diameter of the collet 8 increases from front to back in sequence to match the diameter of the tapered hole 7-2. The inner ring of the elastic chuck 8 is a central hole II 8-2 matched with the workpiece, the diameter of the central hole II 8-2 is matched with the outer diameter of the shaft sleeve type workpiece, and the outer ring surface of the elastic chuck 8 is provided with an annular clamping groove 8-1 matched with the annular bulge 5-2 of the pull sleeve 5 along the circumferential direction.
The central lines of the pull rod central hole 1-1, the flange central hole 4-1, the pull sleeve central hole 5-3, the round hole 7-1, the conical hole 7-2 and the central hole II 8-2 are positioned on the same straight line.
Referring to the attached figures 9 and 10, one end of the center 12 is cylindrical and matched with a central hole 4-1 of the flange, the other end of the center 12 is a conical surface matched with a workpiece, a threaded hole four 12-1 is formed in one cylindrical end of the center 12, and an external thread 11-1 matched with the threaded hole is formed in the rear plug 11. The cylindrical ends of the rear plug 11 and the center 12 are arranged in the flange center hole 4-1 and the pull sleeve center hole 5-3, the spring 13 is sleeved at the cylindrical end of the center 12, the diameter of the disc of the rear plug 11 and the maximum diameter of the center are both larger than the aperture of the flange center hole 4-1, and the center is limited. The rear plug 11, the centre 12 and the spring 13 can move back and forth in the pull rod central hole 1-1, the flange central hole 4-1 and the pull sleeve central hole 5-3.
Referring to the attached drawings 1-10, during assembly, a pull rod 1 is connected with a machine tool pull rod through M52 threads, then a spring 13 penetrates through a tip 12 and is placed at a central hole 4-1 of a flange 4, a rear plug 11 is connected with a threaded hole four 12-1 of the tip 12 through M16 threads, and at the moment, the spring 13 and the tip 12 are assembled on the flange 4. The outer circumference of the flange 4 is provided with a plurality of bolt holes II 4-3, one side of the flange 4 is connected with a machine tool spindle through six M12 hexagon socket cap screws, four spacer bushes 3 are inserted into four inner holes 4-2 of the flange 4, the inner holes 4-2 are phi 16mm through holes, four M8X55 hexagon socket cap screws (the hexagon socket cap screws I2) penetrate through the step through holes 5-1 and the spacer bushes 3 are connected with the bolt holes I1-2, and the pull rod 1, the flange 4 and the pull bush 5 are fastened. Then the elastic chuck 8 is inserted into the tapered hole 7-2 of the main body 7, the elastic chuck 8 is matched with the main body 7 through a conical surface, and the annular boss 5-2 of the pull sleeve 5 is clamped into the clamping groove 8-1 of the elastic chuck 8, so that the pull sleeve drives the elastic chuck to move. And then one end of the main body 7 is fixed with the receiving disc 4 through a second hexagon socket head cap screw 6, and finally the positioning disc 9 is installed at the other end of the main body 7 and is fastened by four M8X20 hexagon socket head cap screws (a third hexagon socket head cap screw 10). The workpiece 14 penetrates through the third central hole 9-1 and the second central hole 8-2 and extends into the pull sleeve 5 to be in contact with the tip.
When the machine tool is in work, the machine tool pull rod moves to drive the pull rod 1 and the pull sleeve 5 to move so as to realize the axial movement of the elastic chuck 8, and the movement of the elastic chuck 8 can enable the central hole II 8-2 to deform so as to realize the clamping and the loosening of a workpiece due to the conical surface matching of the elastic chuck 8 and the main body 7.
When the tool is used, the dial indicator is used for measuring the axial and radial runout of the tool, after the runout meets the requirement, the shaft sleeve type workpiece is directly installed into the tool, the inner conical surface of the workpiece is contacted with the outer conical surface of the tip, then the workpiece is slightly pushed to make the end surface of the workpiece contacted with the end surface of the positioning disk, at the moment, the spring is compressed, and the tip is propped against the inner conical surface of the shaft type workpiece. And operating a machine tool clamping instruction, and driving the tool pull rod to move the elastic chuck 8 by the machine tool pull rod to clamp the workpiece. The centre 12 provides radial support, prevents crooked and the swing of afterbody when processing in the part clamping process, and positioning disk 9 plays the axial positioning effect, draws the manufacturing deviation that cover 5 and collet 8 can eliminate the frock, makes collet 8's removal directly obey the conical surface of main part 7, improves the machining precision of part. During machining, the workpiece 14 and the grinding wheel 15 rotate together, and the grinding wheel 15 gradually moves toward the workpiece to start grinding.
Claims (8)
1. The utility model provides a shaft sleeve class part grinds frock structure for hole which characterized in that: the connecting device comprises a pull rod (1), a spacer bush (3), a connecting disc (4), a pull sleeve (5), a second inner hexagonal socket head cap screw (6), a main body (7), an elastic chuck (8), a positioning disc (9), a third inner hexagonal socket head cap screw (10), a rear plug (11), a tip (12) and a spring (13), wherein the pull rod (1), the connecting disc (4), the main body (7) and the positioning disc (9) are sequentially arranged, the connecting disc (4) is provided with a connecting disc center hole (4-1), and a plurality of inner holes (4-2) matched with the spacer bush (3) are formed in the circumferential direction of the connecting disc (4); the pull sleeve (5) is in a hollow cylindrical shape, and a pull sleeve central hole (5-3) is formed in the middle of the pull sleeve (5); the main body (7) is provided with a first central hole, one end of the first central hole is a round hole (7-1) matched with the excircle of the pull sleeve (5), and the other end of the first central hole is a conical hole (7-2); the outer surface of the elastic chuck (8) is a conical surface matched with the conical hole (7-2), and the elastic chuck (8) is provided with a second central hole (8-2) matched with the outer diameter of the workpiece (14); one end of a centre (12) is cylindrical and matched with a central hole (4-1) of a connecting disc, the other end of the centre (12) is a conical surface matched with a workpiece (14), a spring (13) is sleeved on the centre (12), a rear plug (11) is in threaded connection with one cylindrical end of the centre (12), the rear plug (11) and one cylindrical end of the centre (12) are arranged in the central hole (4-1) of the connecting disc and a central hole (5-3) of a pull sleeve, a plurality of spacer sleeves (3) are respectively inserted into an inner hole (4-2) of the connecting disc (4), the pull sleeve (5) is inserted into a circular hole (7-1) of a main body (7), an elastic chuck (8) is inserted into a conical hole (7-2) of the main body (7), and the pull sleeve (5) is clamped with the elastic chuck (8); the pull rod (1) is connected with a machine tool pull rod, the pull sleeve (5) is connected with the flange (4) and the pull rod (1) through a first hexagon socket head cap screw (2), two sides of the flange (4) are respectively connected with a machine tool main shaft and one end of a main body (7), and the other end of the main body (7) is connected with a positioning disc (9) through a third hexagon socket head cap screw (10).
2. The tool structure for grinding the inner hole of the shaft sleeve part according to claim 1, characterized in that: an annular clamping groove (8-1) is formed in the circumferential direction of the outer surface of the elastic chuck (8), an annular boss (5-2) is arranged on one side, adjacent to the elastic chuck (8), of the pull sleeve (5), and the annular boss (5-2) is clamped on the annular clamping groove (8-1) of the elastic chuck (8).
3. The tool structure for grinding the inner hole of the shaft sleeve part according to claim 1 or 2, characterized in that: one end of the center (12) in the cylindrical shape is provided with a threaded hole IV (12-1), the rear plug (11) is composed of a disc and a cylinder which are fixedly connected, and the cylinder is provided with an external thread (11-1) matched with the threaded hole.
4. The tool structure for grinding the inner hole of the shaft sleeve part according to claim 3, characterized in that: the diameter of the disc is larger than the aperture of the central hole (4-1) of the flange.
5. The tool structure for grinding the inner hole of the shaft sleeve part according to claim 4, characterized in that: the middle part of the pull rod (1) is provided with a pull rod central hole (1-1) communicated with the flange central hole (4-1).
6. The tool structure for grinding the inner hole of the shaft sleeve part according to claim 5, characterized in that: one side, far away from the elastic chuck (8), of the pull sleeve (5) is provided with a plurality of step through holes (5-1), the outer circle of the pull rod (1) is provided with a plurality of bolt holes I (1-2), and the inner hexagonal socket head cap screw I (2) sequentially penetrates through the step through holes (5-1), the spacer sleeve (3) and the bolt holes I (1-2).
7. The tool structure for grinding the inner hole of the shaft sleeve part according to claim 1 or 2, characterized in that: the positioning disc (9) is provided with a third central hole (9-1), and a workpiece enters the second central hole (8-2) of the elastic chuck (8) from the third central hole (9-1).
8. The tool structure for grinding the inner hole of the shaft sleeve part according to claim 1 or 2, characterized in that: the outer circle of the flange (4) is provided with a plurality of bolt holes II (4-3), the main body (7) is a hollow cylinder, one end, adjacent to the flange (4), of the main body (7) is provided with an annular boss, the annular boss is provided with bolt holes III (7-3), and the inner hexagonal socket head cap screws II (6) are arranged in the bolt holes II (4-3) and the bolt holes III (7-3) to fasten the flange (4) and one end of the main body (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221986649.1U CN217860355U (en) | 2022-07-29 | 2022-07-29 | Tool structure for grinding inner hole of shaft sleeve part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221986649.1U CN217860355U (en) | 2022-07-29 | 2022-07-29 | Tool structure for grinding inner hole of shaft sleeve part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217860355U true CN217860355U (en) | 2022-11-22 |
Family
ID=84056959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221986649.1U Active CN217860355U (en) | 2022-07-29 | 2022-07-29 | Tool structure for grinding inner hole of shaft sleeve part |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217860355U (en) |
-
2022
- 2022-07-29 CN CN202221986649.1U patent/CN217860355U/en active Active
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