CN216228781U - Clamp for grinding crankshaft connecting rod neck - Google Patents
Clamp for grinding crankshaft connecting rod neck Download PDFInfo
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- CN216228781U CN216228781U CN202122364587.2U CN202122364587U CN216228781U CN 216228781 U CN216228781 U CN 216228781U CN 202122364587 U CN202122364587 U CN 202122364587U CN 216228781 U CN216228781 U CN 216228781U
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- crankshaft
- sleeve
- positioning
- headstock
- chuck
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- 230000001105 regulatory effect Effects 0.000 claims 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 210000003739 neck Anatomy 0.000 description 12
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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Abstract
The utility model discloses a clamp for grinding a crankshaft connecting rod neck, which is characterized in that: the crankshaft positioning mechanism comprises a headstock and a crankshaft positioning mechanism, wherein the crankshaft positioning mechanism comprises a chuck seat, a taper sleeve is arranged on the chuck seat, a sleeve spring chuck capable of moving axially is arranged in the chuck seat, the sleeve spring chuck is provided with a crankshaft clamping hole, the periphery of the sleeve spring chuck is provided with a taper surface matched with the taper sleeve, and when the sleeve spring chuck moves towards one side of the headstock, the chuck of the sleeve spring chuck clamps a crankshaft tightly, a positioning bulge for positioning the crankshaft is further arranged in the sleeve spring chuck, the sleeve spring chuck is connected with a driving device, and the crankshaft positioning mechanism is arranged on the headstock through a movement adjusting device. The beneficial effects of the utility model include: simple structure, the bent axle clamping is convenient, and the clamping is efficient, and positioning accuracy is high, and applicable bent axle clamping location in multiple specification.
Description
Technical Field
The utility model relates to the field of clamps, in particular to a clamp for grinding a crankshaft connecting rod neck.
Background
The integral crankshaft is an important part in the crank-slider mechanism. The crankshaft connecting rod neck is usually machined by a method of turning before grinding, and the service life of an engine is directly influenced by the performance of the crankshaft connecting rod neck. After the outer circles of all the rod bodies of the crankshaft are ground, axial positioning is realized on a numerical control outer circle grinding machine through clamping of the outer circles of the rod bodies, and then the connecting rod necks are rotated to the rotation center of a machine tool spindle to realize circumferential positioning. Therefore, the grinding and positioning clamp for the integral crankshaft connecting rod neck is particularly important.
The existing grinding clamp for the connecting rod neck of the crankshaft is troublesome in clamping, and the crankshafts with different eccentricities need to be positioned by different clamps, so that the working efficiency is low, and the improvement is needed.
Disclosure of Invention
Aiming at the defects in the prior art, the utility model provides a crankshaft connecting rod neck grinding clamp which is simple in structure, convenient to clamp and suitable for machining crankshafts of various specifications.
In order to achieve the purpose, the utility model adopts the following technical scheme:
the utility model provides a grind bent axle connecting rod neck anchor clamps which characterized in that: including headstock, bent axle positioning mechanism includes the collet chuck seat, be provided with the tapering cover on the collet chuck seat, but be provided with axial activity's sleeve collet chuck in the collet chuck seat, sleeve collet chuck has the bent axle centre gripping hole, sleeve collet chuck periphery have with tapering cover complex conical surface, and work as sleeve collet chuck to when headstock one side motion, sleeve collet chuck's chuck presss from both sides tight bent axle, still have the location arch of location bent axle in the sleeve collet chuck, sleeve collet chuck is connected with drive arrangement, bent axle positioning mechanism set up in on the headstock through removing adjusting device, it makes the connecting rod neck axis of bent axle with the axis of revolution of headstock is coaxial to remove adjusting device.
Furthermore, a cover plate is arranged at the outer side end of the taper sleeve, and a central hole through which a shaft part of the crankshaft can pass is formed in the middle of the cover plate.
Furthermore, the driving device comprises a sliding shaft moving along the axis direction of the headstock, a pull arm is connected to the sliding shaft, a clamping block is connected to the sleeve spring chuck, and a fork opening is formed in the pull arm and movably connected with the clamping block.
Furthermore, the movable adjusting structure comprises a headstock sleeve and a positioning disc, the headstock sleeve is used for being connected with the headstock, the positioning disc is arranged on the headstock sleeve, a moving seat is arranged on the positioning disc in a sliding fit mode, the positioning disc is coaxial with the headstock, the moving seat is located on a symmetry axis of the positioning end face, an adjusting plate is arranged on the positioning disc, and an adjusting screw for adjusting the moving seat is arranged on the adjusting plate.
Furthermore, an index plate is coaxially arranged on the positioning plate, a plurality of limiting clamping grooves are distributed on the outer circumference of the index plate, and a positioning sleeve capable of being inserted into the limiting clamping grooves is arranged on the headstock.
Further, a cylinder seat is arranged on the headstock, a sleeve is arranged on the cylinder seat, the positioning sleeve is arranged in the sleeve in a sliding fit manner, and a cylinder for driving the positioning sleeve to horizontally slide is arranged on the cylinder seat.
The beneficial effects of the utility model include: simple structure, the bent axle clamping is convenient, and the clamping is efficient, and positioning accuracy is high, and applicable bent axle clamping location in multiple specification.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic sectional view of the driving apparatus of the present invention;
FIG. 3 is a schematic cross-sectional view of the crankshaft positioning mechanism of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following embodiments and the accompanying drawings.
A crankshaft connecting rod neck grinding fixture as shown in fig. 1-2 comprises a headstock 1 for mounting on a slide rail of a grinding machine and a crankshaft positioning mechanism arranged on the headstock 1. The crankshaft positioning mechanism comprises a chuck seat 2, a taper sleeve 3 is arranged on the chuck seat 2, a sleeve spring chuck 4 capable of moving axially is arranged in the chuck seat 2, the sleeve spring chuck 4 is provided with a crankshaft clamping hole 41, the periphery of the sleeve spring chuck 4 is provided with a taper surface matched with the taper sleeve 3, and when the sleeve spring chuck 4 moves towards one side of the chuck seat 1, the chuck of the sleeve spring chuck 4 tightens towards the center to clamp the crankshaft. The sleeve spring chuck 4 is also internally provided with a positioning bulge for positioning the crankshaft, and the positioning bulge is used for matching with a key groove of the crankshaft to position the direction of the crankshaft. The sleeve collet chuck 4 is connected with a driving device, and the sleeve collet chuck 4 is driven to realize clamping and looseness prevention through axial movement. The crankshaft positioning mechanism is further arranged on the headstock 1 through a movable adjusting device, and the movable adjusting device enables the axis of the connecting rod neck of the crankshaft to be coaxial with the rotation axis of the headstock 1.
The outer side end of the taper sleeve 3 is provided with a cover plate 5, and the middle part of the cover plate 5 is provided with a central hole for the shaft part of the crankshaft to pass through. The cover plate 5 serves to limit the axial movement of the collet chuck 4.
The driving device in the present embodiment includes a sliding shaft 6 moving along the axial direction of the head frame 1, and the sliding shaft 6 is further connected with a cylinder as a power source, and the cylinder can be arranged at the outer end of the head frame 1. The slide shaft 6 is connected with a pull arm 7. Meanwhile, the sleeve collet chuck 4 is connected with a clamping block 8, and the pull arm 7 is provided with a fork mouth movably connected with the clamping block 8. Therefore, the pull arm 7 can pull the collet chuck 4 axially along the collet chuck 4, and the pull arm 7 can be adjusted in a radial translation mode with the fixture block 8 due to the fork openings formed in the pull arm 7.
Furthermore, in the present embodiment, the positioning plate 10 is coaxially provided with an index plate 14, a plurality of limiting slots 15 are distributed on an outer circumference of the index plate 14, and the head frame 1 is provided with a positioning sleeve 16 that can be inserted into the limiting slots 15. The positioning sleeve 16 is inserted into the limiting clamping groove 15 to limit the positioning disc 10, so that the crankshaft can be conveniently clamped and taken down.
As shown in fig. 3, a cylinder block 17 is disposed on the headstock 1, a sleeve 18 is disposed on the cylinder block 17, the positioning sleeve 16 is disposed in the sleeve 18 in a sliding fit manner, and a cylinder for driving the positioning sleeve 16 to horizontally slide is disposed on the cylinder block 17. The positioning sleeve 16 and the limiting clamping groove 15 are driven to limit and lock the positioning plate under the action of the cylinder.
The technical solutions provided by the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the embodiments are only used to help understanding the principles of the embodiments of the present invention; meanwhile, for a person skilled in the art, according to the embodiments of the present invention, there may be variations in the specific implementation manners and application ranges, and in summary, the content of the present description should not be construed as a limitation to the present invention.
Claims (6)
1. The utility model provides a grind bent axle connecting rod neck anchor clamps which characterized in that: comprises a headstock (1) and a crankshaft positioning mechanism, wherein the crankshaft positioning mechanism comprises a chuck seat (2), the clamp head seat (2) is provided with a taper sleeve (3), the clamp head seat (2) is internally provided with a sleeve spring clamp head (4) which can move axially, the sleeve spring chuck (4) is provided with a crankshaft clamping hole (41), the periphery of the sleeve spring chuck (4) is provided with a conical surface matched with the conical sleeve (3), and when the sleeve spring chuck (4) moves to one side of the headstock (1), the clamping head of the sleeve spring clamping head (4) clamps the crankshaft, a positioning bulge for positioning the crankshaft is further arranged in the sleeve spring clamping head (4), the sleeve spring chuck (4) is connected with a driving device, the crankshaft positioning mechanism is arranged on the headstock (1) through a movable adjusting device, the movement adjusting device enables the crank shaft axis of the crankshaft to be coaxial with the revolution axis of the head frame (1).
2. The clamp for grinding the connecting rod neck of the crankshaft as claimed in claim 1, wherein: the outer side end of the taper sleeve (3) is provided with a cover plate (5), and the middle of the cover plate (5) is provided with a central hole through which a shaft part of the crankshaft can pass.
3. The clamp for grinding the connecting rod neck of the crankshaft as claimed in claim 1, wherein: the driving device comprises a sliding shaft (6) moving along the axis direction of the headstock (1), a pull arm (7) is connected to the sliding shaft (6), a clamping block (8) is connected to the sleeve collet chuck (4), and a fork opening is formed in the pull arm (7) and movably connected with the clamping block (8).
4. The clamp for grinding the connecting rod neck of the crankshaft as claimed in claim 1, wherein: remove adjusting device including being used for connecting headstock sleeve (9), the setting of headstock (1) are in positioning disk (10) on headstock sleeve (9), sliding fit is provided with on positioning disk (10) and removes seat (11), positioning disk (10) with headstock (1) are coaxial, it is located to remove seat (11) on the symmetry axis of positioning disk (10) terminal surface, be provided with regulating plate (12) on positioning disk (10), be provided with the regulation on regulating plate (12) remove adjusting screw (13) of seat (11).
5. The clamp for grinding the connecting rod neck of the crankshaft as claimed in claim 4, wherein: the positioning device is characterized in that an index plate (14) is coaxially arranged on the positioning plate (10), a plurality of limiting clamping grooves (15) are distributed on the outer circumference of the index plate (14), and a positioning sleeve (16) capable of being inserted into the limiting clamping grooves (15) is arranged on the headstock (1).
6. The clamp for grinding the connecting rod neck of the crankshaft as claimed in claim 5, wherein: the head frame (1) is provided with a cylinder seat (17), the cylinder seat (17) is provided with a sleeve (18), the positioning sleeve (16) is arranged in the sleeve (18) in a sliding fit mode, and the cylinder seat (17) is provided with a cylinder for driving the positioning sleeve (16) to horizontally slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122364587.2U CN216228781U (en) | 2021-09-28 | 2021-09-28 | Clamp for grinding crankshaft connecting rod neck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122364587.2U CN216228781U (en) | 2021-09-28 | 2021-09-28 | Clamp for grinding crankshaft connecting rod neck |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216228781U true CN216228781U (en) | 2022-04-08 |
Family
ID=80985821
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122364587.2U Active CN216228781U (en) | 2021-09-28 | 2021-09-28 | Clamp for grinding crankshaft connecting rod neck |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216228781U (en) |
-
2021
- 2021-09-28 CN CN202122364587.2U patent/CN216228781U/en active Active
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