CN216297968U - Turning centre for lathe work - Google Patents
Turning centre for lathe work Download PDFInfo
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- CN216297968U CN216297968U CN202122266131.2U CN202122266131U CN216297968U CN 216297968 U CN216297968 U CN 216297968U CN 202122266131 U CN202122266131 U CN 202122266131U CN 216297968 U CN216297968 U CN 216297968U
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- aperture section
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- bearing
- aperture
- thimble
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Abstract
The utility model provides a turning thimble for lathe work, which comprises: the casing, install the bearing in the casing and one end is located the casing and inserts the thimble body that the bearing formed with casing rotation assembly with bearing support, wherein: the shell is internally provided with a step hole, the step hole comprises a large-aperture section, a small-aperture section with the aperture smaller than that of the large-aperture section and a step surface formed at the bottom of the large-aperture section, the step surface is formed at the communication position of the large-aperture section and the small-aperture section, the inner diameter of the large-aperture section is larger than that of the lower-aperture section, and the step surface is an arc surface protruding towards the port direction of the large-aperture section; the thimble body comprises a needle head part and a tail rod part, the needle head part is positioned on one side of the large aperture section far away from the small aperture section, and the tail rod part penetrates through the large aperture section and extends into the small aperture section; the utility model can effectively enhance the anti-extrusion and tensile strength and prolong the service life.
Description
Technical Field
The utility model relates to the technical field of lathe accessories, in particular to a rotary thimble for turning.
Background
The rotary thimble is positioned by means of the central hole, so that the machined part can obtain high dimensional accuracy, and the rotary thimble is an accessory necessary for high-speed cutting on a lathe due to high precision and high rotating speed of the rotary thimble. The rotary thimble can be subjected to larger axial pressure in work. Therefore, improving the axial tensile and anti-extrusion capability of the rotary thimble becomes an important index for improving the performance of the rotary thimble.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problems in the background art, the utility model provides a rotary thimble for turning.
The utility model provides a turning thimble for lathe work, which comprises: the casing, install the bearing in the casing and one end is located the casing and inserts the thimble body that the bearing formed with casing rotation assembly with bearing support, wherein:
the shell is internally provided with a step hole, the step hole comprises a large-aperture section, a small-aperture section with the aperture smaller than that of the large-aperture section and a step surface formed at the bottom of the large-aperture section, the step surface is formed at the communication position of the large-aperture section and the small-aperture section, the inner diameter of the large-aperture section is larger than that of the lower-aperture section, and the step surface is an arc surface protruding towards the port direction of the large-aperture section;
the thimble body comprises a needle head part and a tail rod part, the needle head part is positioned on one side of the large aperture section far away from the small aperture section, and the tail rod part penetrates through the large aperture section and extends into the small aperture section;
the bearing comprises a front end bearing which is positioned in the large-aperture section and is arranged at the tail rod part and a rear end bearing which is positioned in the small-aperture section and is arranged at the tail rod part, wherein the front end bearing comprises a plane bearing, and the plane bearing is positioned in the large-aperture section and is abutted against the step surface.
Preferably, the end portion, located at one end of the large-aperture section, of the shell is provided with a first reinforcing ring, the end portion, located at the other end of the large-aperture section, of the shell is provided with a second reinforcing ring, the first reinforcing ring and the second reinforcing ring are coaxial with the large-aperture section, and a reinforcing rod for connecting the first reinforcing ring and the second reinforcing ring is arranged between the first reinforcing ring and the second reinforcing end.
Preferably, the reinforcing rods are provided in plurality and are circumferentially and evenly distributed.
Preferably, the first reinforcing ring and the second reinforcing ring are integrally formed with the reinforcing rod.
Preferably, the outer wall of the large-aperture section is provided with an axially extending groove, and the reinforcing rod is embedded in the groove and is flush with the peripheral wall of the large-aperture section.
Preferably, the end part of one end of the large-aperture section is provided with a first ring groove coaxial with the large-aperture section, and the end part of the other end of the large-aperture section is provided with a second ring groove coaxial with the large-aperture section; the first reinforcing ring is embedded in the first annular groove, and the second reinforcing ring is embedded in the second annular groove.
Preferably, the housing has a fuel filler port, and a first fuel outlet and a second fuel outlet communicating the fuel filler port, the first fuel outlet being located at the position of the front end bearing, the second fuel outlet being located at the position of the rear end bearing.
Preferably, a sealing retainer ring is arranged in the large-aperture section and is positioned close to the port of the large-aperture section.
According to the ejector pin, the step surface is arranged to be the arc surface, the convex surface of the step surface faces the port of the large-aperture section, and the planar bearing in the front-end bearing is abutted against the step surface, so that the joint of the planar bearing and the step surface is located at the maximum thickness of the step surface (namely the maximum strength of the step surface), when the step surface is subjected to axial pressure transmitted by the planar bearing, the pressure is gradually dispersed from the maximum thickness of the step surface to two sides along the arc surface of the step surface, the extrusion resistance and the tensile strength of the step surface are greatly increased, the deformation resistance of the step surface is further increased, the service life of the ejector pin is prolonged, and the stability of the ejector pin in working is also enhanced.
Drawings
Fig. 1 is a schematic structural view of a turning thimble according to the present invention.
Fig. 2 is a schematic diagram of a positional relationship between the first reinforcing ring, the second reinforcing ring and the reinforcing rod of the turning thimble according to the present invention.
Detailed Description
Referring to the installation of a reference figure on a measuring table 1, the utility model provides a turning thimble, which comprises: the casing 1, install the bearing in casing 1, and one end lies in casing 1 and inserts the bearing in order to form by the bearing support with casing 1 rotation assembly's thimble body 2, wherein: the shell 1 is internally provided with a step hole, the step hole comprises a large-aperture section, a small-aperture section with the aperture smaller than that of the large-aperture section and a step surface 3 formed at the bottom of the large-aperture section, the step surface 3 is formed by enabling the inner diameter of the large-aperture section to be larger than that of the lower-aperture section so as to form a step surface 3 at the communication position of the two, and the step surface 3 is an arc-shaped surface protruding towards the port direction of the large-aperture section.
The thimble body 2 comprises a needle head part and a tail rod part, the needle head part is positioned at one side of the large aperture section far away from the small aperture section, and the tail rod part penetrates through the large aperture section and extends into the small aperture section. The bearing is including being located big aperture section and installing the front end bearing in the tailpiece portion and being located the aperture section and installing the rear end bearing in the tailpiece portion, and the front end bearing includes flat face bearing 4, and flat face bearing 4 is located big aperture section and supports with step face 3 and lean on. So that the joint of the plane bearing 4 and the step surface 3 is at the maximum of the thickness of the step surface 3 (i.e. the maximum of the strength of the step surface 3).
In the utility model, the step surface 3 is arranged to be an arc-shaped surface, the convex surface of the step surface faces the port of the large-aperture section, and the plane bearing 4 in the front-end bearing is abutted to the step surface 3, so that the joint of the plane bearing 4 and the step surface 3 is located at the maximum thickness of the step surface 3, when the step surface 3 is subjected to axial pressure transmitted by the plane bearing 4, the pressure is gradually dispersed from the maximum thickness of the step surface 3 to two sides along the arc surface of the step surface, the extrusion resistance and the tensile strength of the step surface are greatly increased, the deformation resistance of the step surface 3 is further increased, the service life of the thimble is prolonged, and the stability of the thimble in working is also enhanced.
Referring to fig. 2, the end portion of the shell 1 located at one end of the large-aperture section is provided with a first reinforcing ring 5, the end portion of the shell 1 located at the other end of the large-aperture section is provided with a second reinforcing ring 6, the first reinforcing ring 5 and the second reinforcing ring 6 are coaxial with the large-aperture section, a reinforcing rod 7 connected with the first reinforcing ring 5 and the second reinforcing ring is arranged between the first reinforcing ring 5 and the second reinforcing ring, and the first reinforcing ring 5, the second reinforcing ring 6 and the reinforcing rod 7 are matched to form a framework in the periphery of the large-aperture section, so that the deformation resistance and the axial anti-extrusion capacity of the shell can be effectively enhanced. Specifically, the method comprises the following steps: first reinforcing ring 5, second reinforcing ring 6 and stiffener 7 integrated into one piece, and stiffener 7 is equipped with a plurality ofly to circumference equipartition.
In this embodiment, the outer wall of the large-aperture section is provided with an axially extending groove, and the reinforcing rod 7 is embedded in the groove and flush with the peripheral wall of the large-aperture section, so that the rotational resistance is reduced.
In this embodiment, the end of one end of the large-aperture section is provided with a first ring groove coaxial with the large-aperture section, and the end of the other end of the large-aperture section is provided with a second ring groove coaxial with the large-aperture section; the first reinforcing ring 5 is embedded in the first annular groove, and the second reinforcing ring 6 is embedded in the second annular groove.
In the embodiment, the housing 1 has an oil filling port 8, and a first oil outlet and a second oil outlet which are communicated with the oil filling port 8, the first oil outlet is located at the position of the front end bearing, and the second oil outlet is located at the position of the rear end bearing; lubricating oil enters from the oil filling port 8 and then is respectively filled into the front end bearing from the first oil outlet and the rear end bearing from the second oil outlet, so that accurate oil filling is realized.
In this embodiment, in the large aperture section and be located and be equipped with sealing ring 9 near its port department to play sealed effect, when preventing that inside lubricating oil from flowing out, prevent that outside dust from getting into inside.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.
Claims (8)
1. The utility model provides a lathe work is with gyration thimble which characterized in that includes: the bearing that casing (1), installed in casing (1) and one end lie in casing (1) and insert the bearing in order to support by the bearing and form thimble body (2) with casing (1) rotation fit, wherein:
the shell (1) is internally provided with a step hole, the step hole comprises a large-aperture section, a small-aperture section with the aperture smaller than that of the large-aperture section and a step surface (3) formed at the bottom of the large-aperture section, the step surface (3) is formed at the communication position of the large-aperture section and the lower-aperture section, the inner diameter of the large-aperture section is larger than that of the lower-aperture section, and the step surface (3) is an arc surface protruding towards the port direction of the large-aperture section;
the thimble body (2) comprises a needle head part and a tail rod part, the needle head part is positioned on one side of the large aperture section far away from the small aperture section, and the tail rod part penetrates through the large aperture section and extends into the small aperture section;
the bearing is including being located big aperture section and installing the front end bearing in the tailpiece portion and being located the aperture diameter section and installing the rear end bearing in the tailpiece portion, and the front end bearing includes flat face bearing (4), and flat face bearing (4) are located big aperture section and lean on with step face (3).
2. The turning thimble according to claim 1, wherein the first reinforcement ring (5) is provided at an end of the housing (1) at one end of the large bore section, the second reinforcement ring (6) is provided at an end of the housing (1) at the other end of the large bore section, the first reinforcement ring (5) and the second reinforcement ring (6) are coaxial with the large bore section, and a reinforcement rod (7) is provided between the first reinforcement ring (5) and the second reinforcement end for connecting the two.
3. The turning thimble according to claim 2, characterized in that the reinforcement rods (7) are provided in plurality and circumferentially and evenly distributed.
4. The turning thimble according to claim 2, wherein the first reinforcement ring (5), the second reinforcement ring (6) and the reinforcement rod (7) are integrally formed.
5. The turning thimble according to claim 2, wherein the outer wall of the larger diameter section is provided with an axially extending recess, and the reinforcement rod (7) is fitted in the recess and flush with the circumferential wall of the larger diameter section.
6. The rotary thimble for lathe work of claim 2, wherein the end of one end of the large-diameter section is provided with a first ring groove coaxial therewith, and the end of the other end thereof is provided with a second ring groove coaxial therewith; the first reinforcing ring (5) is embedded in the first annular groove, and the second reinforcing ring (6) is embedded in the second annular groove.
7. The turning thimble according to any one of claims 1 to 5, wherein the housing (1) has an oil filler (8), and a first oil outlet and a second oil outlet communicating with the oil filler (8), the first oil outlet being located at a position of the front end bearing, the second oil outlet being located at a position of the rear end bearing.
8. The turning insert according to claim 7, wherein a sealing ring (9) is provided in the large bore section near its end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122266131.2U CN216297968U (en) | 2021-09-17 | 2021-09-17 | Turning centre for lathe work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122266131.2U CN216297968U (en) | 2021-09-17 | 2021-09-17 | Turning centre for lathe work |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216297968U true CN216297968U (en) | 2022-04-15 |
Family
ID=81112829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122266131.2U Active CN216297968U (en) | 2021-09-17 | 2021-09-17 | Turning centre for lathe work |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216297968U (en) |
-
2021
- 2021-09-17 CN CN202122266131.2U patent/CN216297968U/en active Active
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