CN212311477U - Clamping and positioning device for milling shaft sleeve - Google Patents
Clamping and positioning device for milling shaft sleeve Download PDFInfo
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- CN212311477U CN212311477U CN202020553815.3U CN202020553815U CN212311477U CN 212311477 U CN212311477 U CN 212311477U CN 202020553815 U CN202020553815 U CN 202020553815U CN 212311477 U CN212311477 U CN 212311477U
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- elastic sleeve
- bottom plate
- fastening
- sleeve
- plate
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Abstract
The utility model discloses a clamping and positioning device for milling shaft sleeve, which comprises a bottom plate arranged on a base plate of a milling machine, wherein the left side and the right side of the bottom plate are respectively provided with a fastening screw rod vertically arranged on the base plate of the milling machine, each fastening screw rod is provided with a fastening nut and a fastening plate from top to bottom, the fastening nuts are in threaded connection with the corresponding fastening screw rods, the fastening plates are movably sleeved on the corresponding fastening screw rods, the left side and the right side of the top of the bottom plate are respectively provided with an elastic sleeve and a jacking cylinder, the elastic sleeve is fixed on the bottom plate in a front-back inclined shape, the upper side cylinder wall of the elastic sleeve is provided with an axial opening along the axial direction, a plurality of positioning holes are arranged on the lower side cylinder wall of the elastic sleeve along the circumferential direction, a cylinder opening at the lower side of the elastic sleeve is, and a piston rod of the jacking cylinder faces the elastic sleeve and is provided with a jacking block. The utility model has the advantages of can improve clamping efficiency.
Description
Technical Field
The utility model relates to a shaft sleeve processing equipment technical field for the internal-combustion engine, concretely relates to clamping positioner is used in shaft sleeve milling.
Background
The shaft sleeve is a cylindrical mechanical part sleeved on the rotating shaft and is a component of a sliding bearing for fixing and reducing load friction coefficient in an internal combustion engine. In order to improve the lubricating effect between the shaft sleeve and the adjacent matching parts, in the processing process of the shaft sleeve, a plurality of oil holes for lubricating oil to flow into are drilled on the wall of the shaft sleeve along the circumferential direction, and then an axial oil groove is milled at the position corresponding to each oil hole on the inner circumferential wall of the shaft sleeve. The existing milling machine usually adopts a three-jaw chuck to clamp a shaft sleeve, and the three-jaw chuck is adopted to clamp the shaft sleeve, so that the following defects exist: (1) the clamping and loosening actions of the three-jaw chuck are manually completed by a worker through a chuck wrench, so that the clamping efficiency of the shaft sleeve is very low, and the processing efficiency of the shaft sleeve is greatly reduced; (2) when the shaft sleeve is clamped, the shaft sleeve is easy to deform by clamping due to uneven stress, and the product quality is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a can improve axle sleeve clamping efficiency's clamping positioner is used in axle sleeve milling process.
In order to achieve the above purpose, the utility model adopts the following technical scheme: a clamping and positioning device for milling and machining a shaft sleeve comprises a bottom plate arranged on a base plate of a milling machine, wherein the left side and the right side of the bottom plate are respectively provided with a fastening screw rod vertically arranged on the base plate of the milling machine, each fastening screw rod is provided with a fastening nut and a fastening plate from top to bottom, the fastening nuts are in threaded connection with the corresponding fastening screw rods, the fastening plates are movably sleeved on the corresponding fastening screw rods, when the fastening nuts are screwed downwards, the two fastening plates can respectively press the two ends of the bottom plate downwards so as to fix the bottom plate on the base plate of the milling machine, the left side and the right side of the top of the bottom plate are respectively provided with an elastic sleeve and a jacking air cylinder which can contain the shaft sleeve, the elastic sleeve is fixed on the bottom plate in a front-back inclined manner, the upper side cylinder wall of the elastic sleeve is provided with an axial opening along the, each positioning hole corresponds to an oil hole of the shaft sleeve accommodated in the elastic sleeve, a flange which protrudes out of the inner wall of the elastic sleeve and is used for accommodating the shaft sleeve accommodated in the elastic sleeve is arranged at a cylinder opening at the lower side of the elastic sleeve, a piston rod of the jacking cylinder faces the elastic sleeve and is provided with a jacking block, the jacking block can be driven to jack the elastic sleeve when the piston rod of the jacking cylinder extends out, the elastic sleeve draws in the hoop to fix the shaft sleeve arranged in the elastic sleeve, the jacking block can be driven to loosen the elastic sleeve when the piston rod of the jacking cylinder retracts, and the elastic sleeve can automatically expand under the action of self elasticity to loosen the shaft sleeve arranged in the elastic sleeve.
Further, aforementioned shaft sleeve milling processing is with clamping positioner, wherein: be provided with a cushion respectively on the milling machine base plate of every fastening screw one side, every fastening screw is located the bottom plate and corresponds between the cushion, the cushion tip that is close to the bottom plate on every cushion is the inclined plane that leans out gradually from bottom to top, its both ends can support respectively downwards on the upper surface of bottom plate correspondence end and the inclined plane that corresponds the cushion under the dead weight effect of the mounting plate on every fastening screw, when screwing each fastening nut downwards, the both ends of every mounting plate can compress tightly respectively downwards on the upper surface of bottom plate correspondence end and the inclined plane that corresponds the cushion, thereby make two mounting plates compress tightly the both ends of bottom plate downwards respectively, fix the bottom plate on the base plate of milling machine.
Further, aforementioned shaft sleeve milling processing is with clamping positioner, wherein: the through hole for the corresponding fastening screw to pass through on the fastening plate is a waist-shaped hole.
Further, aforementioned shaft sleeve milling processing is with clamping positioner, wherein: the inclined plane of each cushion block is a tooth-shaped inclined plane.
Further, aforementioned shaft sleeve milling processing is with clamping positioner, wherein: the concrete connection structure between elasticity sleeve and the bottom plate includes: the vertical plate is fixedly arranged on the bottom plate, the through hole is formed in the vertical plate, the threaded hole corresponding to the through hole is formed in the wall of the elastic sleeve, the fastening bolt is arranged on the vertical plate, and the screw rod of the fastening bolt extends into the threaded hole from the through hole and is in threaded connection with the threaded hole, so that the elastic sleeve is fixed on the vertical plate.
Through the implementation of the above technical scheme, the beneficial effects of the utility model are that: (1) when a piston rod of the jacking cylinder extends out, the jacking block can be driven to jack up the elastic sleeve, so that the elastic sleeve draws in the hoop to fix the shaft sleeve placed in the elastic sleeve; (2) the elastic sleeve fixes the shaft sleeve by clamping through integrally hooping the shaft sleeve, so that the shaft sleeve is stressed uniformly and is not easy to deform, and the product quality is ensured.
Drawings
Fig. 1 is a schematic structural view of a clamping and positioning device for milling a shaft sleeve.
Fig. 2 is a schematic view of the elastic sleeve shown in fig. 1.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments.
As shown in fig. 1 and 2, the clamping and positioning device for milling and machining a shaft sleeve comprises a bottom plate 2 arranged on a base plate 1 of a milling machine, fastening screws 3 vertically arranged on the base plate 1 of the milling machine are respectively arranged on the left side and the right side of the bottom plate 2, a fastening nut 4 and a fastening plate 5 are respectively arranged on each fastening screw 3 from top to bottom, the fastening nut 4 is in threaded connection with the corresponding fastening screw 3, the fastening plate 5 is movably sleeved on the corresponding fastening screw 3, when each fastening nut is screwed downwards, the fastening nuts 4 can enable the two fastening plates 5 to respectively press two ends of the bottom plate 2 downwards, so that the bottom plate 2 is fixed on the base plate 1 of the milling machine, an elastic sleeve 6 and a jacking cylinder 7 which can contain the shaft sleeve are respectively arranged on the left side and the right side of the top of the bottom plate 2, the elastic sleeve 6 is fixed on the bottom plate 2 in a front-back inclined manner, an axial opening 8 is axially arranged on, a plurality of positioning holes 9 are circumferentially arranged on the lower side cylinder wall of the elastic sleeve 6, each positioning hole 9 corresponds to an oil hole of the shaft sleeve accommodated in the elastic sleeve 6, a cylinder opening on the lower side of the elastic sleeve 6 is provided with a flange 10 which protrudes out of the inner wall of the elastic sleeve 6 and is used for accommodating the shaft sleeve accommodated in the elastic sleeve 6, a piston rod of the jacking cylinder 7 faces the elastic sleeve 6 and is provided with a jacking block 11, when the piston rod of the jacking cylinder 7 extends out, the jacking block 11 can be driven to jack the elastic sleeve 6, the elastic sleeve 6 is folded to fix the shaft sleeve arranged in the elastic sleeve 6, when the piston rod of the jacking cylinder 7 retracts, the jacking block 11 can be driven to loosen the elastic sleeve 6, and at the moment, the elastic sleeve 6 can automatically open under the action of self elasticity to loosen the shaft sleeve arranged in the elastic sleeve 6;
in this embodiment, a spacer 12 is respectively disposed on the milling machine substrate 1 on one side of each fastening screw 3, each fastening screw 3 is located between the bottom plate 2 and the corresponding spacer 12, the end portion of each spacer 12 close to the bottom plate 2 is an inclined surface 121 that is inclined gradually outward from bottom to top, both ends of the fastening plate 5 on each fastening screw 3 respectively abut against the upper surface of the corresponding end of the bottom plate 2 and the inclined surface 121 of the corresponding spacer 12 downward under the action of its own weight, when each fastening nut 4 is screwed downward, both ends of each fastening plate 5 respectively press downward against the upper surface of the corresponding end of the bottom plate 2 and the inclined surface 121 of the corresponding spacer 12, so that the two fastening plates 5 respectively press downward against both ends of the bottom plate 2 to fix the bottom plate 2 on the milling machine substrate 1, thereby not only fixing the bottom plate on the milling machine substrate more firmly and stably, the use stability is improved, the cushion blocks can be adapted to base plates with various heights, the cushion blocks are prevented from being frequently replaced due to different heights of the base plates, and the working efficiency is improved; in this embodiment, the through hole 13 of the fastening plate 5 for the corresponding fastening screw 3 to pass through is a kidney-shaped hole, and the inclined surface 121 of each cushion block 12 is a toothed inclined surface, so that not only is the position of the fastening plate adjusted, but also the bottom plate can be more firmly and stably fixed on the substrate of the milling machine;
in this embodiment, the specific connection structure between the elastic sleeve 6 and the bottom plate 2 includes: the vertical plate 14 is vertically and fixedly installed on the bottom plate 2, a through hole is formed in the vertical plate 14, a threaded hole corresponding to the through hole is formed in the wall of the elastic sleeve 6, a fastening bolt 15 is arranged on the vertical plate 14, and a screw of the fastening bolt 15 extends into the threaded hole from the through hole and is in threaded connection with the threaded hole, so that the elastic sleeve 6 is fixed on the vertical plate 14, the elastic sleeve 6 is further fixed with the bottom plate 2, and the connecting structure is simple and convenient to assemble, disassemble and maintain;
when the bottom plate fixing device is used, the bottom plate 2 is placed between the two fastening screws 3 on the base plate 1, at the moment, the two ends of the fastening plate 5 on each fastening screw 3 are respectively and downwards abutted against the upper surface of the corresponding end of the bottom plate 2 and the inclined surface 121 of the corresponding cushion block 12 under the action of self weight, then, the fastening nuts 4 are simultaneously and downwards screwed, so that the two ends of each fastening plate 5 are respectively and downwards pressed on the upper surface of the corresponding end of the bottom plate 2 and the inclined surface 121 of the corresponding cushion block 12, and the two fastening plates 5 are respectively and downwards pressed on the two ends of the bottom plate 2, and the bottom plate 2 is fixed on the base plate 1 of a milling machine; then the shaft sleeve is placed in the elastic sleeve 6, then the shaft sleeve is rotated until the oil hole of the shaft sleeve corresponds to the positioning hole 9 of the elastic sleeve 6, a positioning pin penetrates through each pair of corresponding positioning hole 9 and oil hole, then the piston rod of the jacking cylinder 7 extends out, the piston rod of the jacking cylinder 7 can drive the jacking block 11 to jack the elastic sleeve 6 when extending out, the elastic sleeve 6 draws in the hoop to fix the shaft sleeve placed in the elastic sleeve 6, then the positioning pin of each positioning hole 9 is pulled out, at the moment, the milling machine can mill the inner wall of the shaft sleeve in the elastic sleeve 6, after the shaft sleeve finishes milling the oil groove, the piston rod of the jacking cylinder 7 retracts, the jacking block 11 can be driven to loosen the elastic sleeve 6 when the piston rod of the jacking cylinder 7 retracts, at the moment, the elastic sleeve 6 can automatically expand under the action of the self elasticity to loosen the shaft sleeve placed in the elastic sleeve 6, and then taking out the shaft sleeve which finishes the oil groove milling operation from the elastic sleeve 6.
The utility model has the advantages that: (1) when a piston rod of the jacking cylinder extends out, the jacking block can be driven to jack up the elastic sleeve, so that the elastic sleeve draws in the hoop to fix the shaft sleeve placed in the elastic sleeve; (2) the elastic sleeve fixes the shaft sleeve by clamping through integrally hooping the shaft sleeve, so that the shaft sleeve is stressed uniformly and is not easy to deform, and the product quality is ensured.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any modifications or equivalent changes made in accordance with the technical spirit of the present invention are also within the scope of the present invention.
Claims (5)
1. The utility model provides a shaft sleeve milling processing is with clamping positioner which characterized in that: comprises a bottom plate arranged on a base plate of a milling machine, wherein the left side and the right side of the bottom plate are respectively provided with a fastening screw rod vertically arranged on the base plate of the milling machine, each fastening screw rod is respectively provided with a fastening nut and a fastening plate from top to bottom, the fastening nuts are in threaded connection with the corresponding fastening screw rods, the fastening plates are movably sleeved on the corresponding fastening screw rods, when the fastening nuts are screwed downwards, the two fastening plates can respectively press the two ends of the bottom plate downwards, so that the bottom plate is fixed on the base plate of the milling machine, the left side and the right side of the top of the bottom plate are respectively provided with an elastic sleeve and a jacking air cylinder which can contain an axle sleeve, the elastic sleeve is fixed on the bottom plate in a front-back inclined manner, the upper side of the elastic sleeve is axially provided with an axial opening, the lower side of the elastic sleeve is circumferentially provided with a plurality of, the elastic sleeve is characterized in that a flange which protrudes out of the inner wall of the elastic sleeve and is used for accommodating the shaft sleeve in the elastic sleeve is arranged at a barrel opening on the lower side of the elastic sleeve, a piston rod of the jacking cylinder faces the elastic sleeve and is provided with a jacking block, the jacking block can be driven to jack the elastic sleeve when the piston rod of the jacking cylinder extends out, the elastic sleeve is drawn in by the elastic sleeve to fix the shaft sleeve placed in the elastic sleeve, the jacking block can be driven to loosen the elastic sleeve when the piston rod of the jacking cylinder retracts, and the elastic sleeve can automatically open under the action of elasticity of the elastic sleeve to loosen the shaft sleeve placed in the elastic sleeve.
2. The clamping and positioning device for milling of the shaft sleeve as recited in claim 1, wherein: be provided with a cushion respectively on the milling machine base plate of every fastening screw one side, every fastening screw is located the bottom plate and corresponds between the cushion, the cushion tip that is close to the bottom plate on every cushion is the inclined plane that leans out gradually from bottom to top, its both ends can support respectively downwards on the upper surface of bottom plate correspondence end and the inclined plane that corresponds the cushion under the dead weight effect of the mounting plate on every fastening screw, when screwing each fastening nut downwards, the both ends of every mounting plate can compress tightly respectively downwards on the upper surface of bottom plate correspondence end and the inclined plane that corresponds the cushion, thereby make two mounting plates compress tightly the both ends of bottom plate downwards respectively, fix the bottom plate on the base plate of milling machine.
3. The clamping and positioning device for milling of the shaft sleeve as recited in claim 2, wherein: the through hole for the corresponding fastening screw to pass through on the fastening plate is a waist-shaped hole.
4. The clamping and positioning device for milling of the shaft sleeve as recited in claim 2, wherein: the inclined plane of each cushion block is a tooth-shaped inclined plane.
5. The clamping and positioning device for milling of the shaft sleeve as recited in claim 1, 2, 3 or 4, wherein: the concrete connection structure between elasticity sleeve and the bottom plate includes: the vertical plate is fixedly arranged on the bottom plate, the through hole is formed in the vertical plate, the threaded hole corresponding to the through hole is formed in the wall of the elastic sleeve, the fastening bolt is arranged on the vertical plate, and the screw rod of the fastening bolt extends into the threaded hole from the through hole and is in threaded connection with the threaded hole, so that the elastic sleeve is fixed on the vertical plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020553815.3U CN212311477U (en) | 2020-04-15 | 2020-04-15 | Clamping and positioning device for milling shaft sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020553815.3U CN212311477U (en) | 2020-04-15 | 2020-04-15 | Clamping and positioning device for milling shaft sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212311477U true CN212311477U (en) | 2021-01-08 |
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ID=74020748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020553815.3U Active CN212311477U (en) | 2020-04-15 | 2020-04-15 | Clamping and positioning device for milling shaft sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212311477U (en) |
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2020
- 2020-04-15 CN CN202020553815.3U patent/CN212311477U/en active Active
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